CN119482049A - A mine power supply and distribution device with moisture-proof function - Google Patents
A mine power supply and distribution device with moisture-proof function Download PDFInfo
- Publication number
- CN119482049A CN119482049A CN202510027894.1A CN202510027894A CN119482049A CN 119482049 A CN119482049 A CN 119482049A CN 202510027894 A CN202510027894 A CN 202510027894A CN 119482049 A CN119482049 A CN 119482049A
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- Prior art keywords
- moisture
- power supply
- plate
- dust
- proof
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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
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
-
- 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
- H02B1/56—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)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention is suitable for the technical field of mine power supply and distribution, and provides a mine power supply and distribution device with a moistureproof function. When this mine that possesses dampproofing function uses power supply and distribution unit uses, simultaneously radiating component can carry out forced air cooling and heat dissipation to power supply and distribution box inside, avoid the inside heat accumulation of power supply and distribution box that the circulation of air is unsmooth to lead to under the mine, accelerate the circulation of air speed, reduce service temperature, simultaneously, because ore deposit below dust is more, there is great moisture in the air, when radiating component uses, dustproof dampproofing component filters the impurity in the air, avoid impurity to enter into the circuit short circuit that power supply and distribution box inside leads to, also can absorb the moisture in the air simultaneously, ensure to enter into the inside dry gas of power supply and distribution box, prevent to wet.
Description
Technical Field
The invention belongs to the technical field of mine power supply and distribution, and particularly relates to a mine power supply and distribution device with a dampproof function.
Background
The electric power is the main energy source of coal mine enterprise production, the reliability of the coal mine power supply system is the core of guaranteeing the safe production of the coal mine enterprise, the method has very important significance in the aspects of improving the product quality, improving the economic benefit, guaranteeing the safe production and the like, in order to guarantee the safe production of the whole coal mine, a reasonable and reliable underground power supply system is more important, in the past, the main circuit and the electric equipment of the coal mine power supply system are all power supply protection by adopting relay protection equipment, along with the requirement of the safe production of the coal mine, the traditional relay protection equipment can not completely meet the requirement of the coal mine power supply system, and in the present stage, all the coal mine power supply systems are all novel microcomputer protection devices, and in the following, the microcomputer protection of the coal mine power supply system is simply analyzed.
The existing mine power supply and distribution box is heavy in mine moisture and extremely unsmooth in air circulation, heat inside the power supply and distribution box is accumulated easily, spontaneous combustion is easy to occur, if the mine power supply and distribution box is only used for radiating by adding a fan and the like, air containing heavy moisture in a mine is blown into the power supply and distribution box easily, water in the air can corrode an internal circuit, the circuit is affected with damp easily, and therefore short circuit and other conditions occur, and the mine power supply and distribution box has high potential safety hazards.
Disclosure of Invention
The embodiment of the invention aims to provide a mine power supply and distribution device with a dampproof function, which aims to solve the problems that in the actual use process of the existing mine power supply and distribution box, because the mine is heavy in moisture and the air circulation is extremely unsmooth, heat in the power supply and distribution box is easy to accumulate and spontaneous combustion is easy to occur, and if the mine is only cooled by adding a fan on the power supply and distribution box, air containing heavy moisture in a mine is easy to blow into the power supply and distribution box, water in the air can corrode an internal circuit, the circuit is easy to be affected with moisture, and thus the conditions such as short circuit and the like are easy to occur.
The embodiment of the invention is realized in such a way that the mine power supply and distribution device with the moisture-proof function comprises a support plate, wherein the support plate is provided with supporting legs, and the supporting legs are connected with a power supply and distribution box.
The heat dissipation assembly is arranged at the side part of the power supply and distribution box and used for reducing the temperature inside the power supply and distribution box;
dampproofing case installs supply block terminal lateral part, dampproofing case internally mounted has dustproof dampproofing subassembly, dustproof dampproofing subassembly is used for avoiding the cooling module is with external dust and moisture suction supply block terminal inside.
Preferably, the heat dissipation assembly includes:
The mounting pipe is mounted on the side wall of the power supply and distribution box, and a fixing frame is mounted in the mounting pipe;
The driving motor is arranged on the fixing frame, the output end of the fixing frame is connected with a rotating shaft, and fan blades are arranged on the side part of the rotating shaft.
Preferably, the dust and moisture proof assembly comprises:
the connecting port is formed in the moistureproof box and is matched with the mounting pipe;
The dustproof filter plate is arranged on the side part of the moistureproof box, a self-cleaning dust removing assembly is arranged on the dustproof filter plate, and the self-cleaning dust removing assembly is used for cleaning and discharging dust accumulated on the dustproof filter plate;
The mounting opening is formed in the side part of the moistureproof box, a mounting plate is arranged in the mounting opening in a matched mode, a through notch is formed in the mounting plate, a baffle frame is arranged at one end of the through notch, and a moisture absorption plate is arranged in the through notch;
and the automatic disassembly and assembly component is installed on the mounting plate and is used for automatically disassembling and fixing the mounting plate and the moisture absorption plate.
Preferably, the self-cleaning dust removal assembly comprises:
the mounting frame is mounted inside the moistureproof box, a first motor is mounted on the mounting frame, and the output end of the first motor is connected with a threaded rod;
The thread block is in threaded connection with the threaded rod, a second motor is installed on the thread block, the output end of the second motor is connected with a shaft lever, and a rolling brush is installed on the side part of the shaft lever;
and the dust collection assembly is arranged inside the moistureproof box and is used for collecting dust swept down by the rolling brush.
Preferably, the dust collection assembly includes:
the notch is formed in one side of the moistureproof box, and a dust collection box is arranged in the notch in a matched mode;
the flexible connecting plate is arranged on one side of the dust box, a handle is arranged on the flexible connecting plate, and a clamping groove is formed in the flexible connecting plate;
The clamping block is arranged on the side part of the moistureproof box and is matched with the clamping groove.
Preferably, the automatic dismounting assembly comprises:
the first groove body is formed in the mounting plate, a first guide pillar is mounted in the first groove body, a first spring is sleeved on the first guide pillar, and a first tooth clamping plate is connected to the first guide pillar in a sliding mode;
The second groove body is arranged in the mounting plate, a toothed plate is connected in the second groove body in a sliding manner, a stop lever is arranged between the toothed plates, and the stop lever is matched with the moisture absorption plate;
The first gear and the second gear are both rotationally connected to the mounting plate, the first gear and the second gear are respectively matched with the first tooth clamping plate and the tooth plate, and a transmission belt is sleeved between the first gear and the second gear and between the adjacent second gears;
and the clamping assembly is arranged on the mounting plate and used for limiting the position of the mounting plate.
Preferably, the clamping assembly comprises:
the third groove body is formed in the mounting plate, a second guide post is arranged in the third groove body, a second spring is sleeved on the second guide post, and a second tooth clamping plate is connected to the second guide post in a sliding mode;
The third gear is connected inside the mounting plate in a rotating way, the third gear is matched with the second latch plate, and a pulling rope is wound on the third gear;
The fourth groove body is formed in the mounting plate, a third guide pillar is arranged in the fourth groove body, a pulling column is connected to the third guide pillar in a sliding mode, and the pulling column is connected with the pulling rope;
The first handle is arranged at one end of the mounting plate, the second handle is arranged on the pulling column, and the first handle and the second handle are matched with each other;
the middle rotating wheel is connected to the mounting plate in a rotating mode, and the middle rotating wheel is matched with the pulling rope.
The mine power supply and distribution device with the dampproof function has the following beneficial effects:
When this mine that possesses dampproofing function uses power supply and distribution unit uses, simultaneously radiating component can carry out forced air cooling and heat dissipation to power supply and distribution box inside, avoid the inside heat accumulation of power supply and distribution box that the circulation of air is unsmooth to lead to under the mine, accelerate the circulation of air speed, reduce service temperature, simultaneously, because ore deposit below dust is more, there is great moisture in the air, when radiating component uses, dustproof dampproofing component filters the impurity in the air, avoid impurity to enter into the circuit short circuit that power supply and distribution box inside leads to, also can absorb the moisture in the air simultaneously, ensure to enter into the inside dry gas of power supply and distribution box, prevent to wet.
Drawings
Fig. 1 is a schematic structural diagram of a mine power supply and distribution device with a dampproof function according to an embodiment of the present invention;
Fig. 2 is a front view of a mine power supply and distribution device with a moisture-proof function according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of an internal structure of a mine power supply and distribution device with a moisture-proof function according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of a partial structure of a mine power supply and distribution device with a dampproof function according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 at A;
FIG. 6is a partial enlarged view at B in FIG. 3;
FIG. 7 is an enlarged view of a portion of FIG. 3 at C;
FIG. 8 is a partial enlarged view at D in FIG. 7;
fig. 9 is a partial enlarged view at E in fig. 3.
In the drawings, 1-support plates, 2-support legs, 3-distribution box, 4-heat dissipation assembly, 41-installation pipe, 42-fixing frame, 43-driving motor, 44-rotation shaft, 45-fan blade, 5-dampproof box, 6-dustproof and dampproof assembly, 61-connection port, 62-dustproof filter plate, 63-installation port, 64-installation plate, 65-through notch, 66-baffle frame, 67-moisture absorption plate, 68-installation frame, 69-first motor, 610-threaded rod, 611-screw block, 612-second motor, 613-shaft rod, 614-rolling brush, 615-notch, 616-dust collection box, 617-toughness connection plate, 618-handle, 619-clamping groove, 620-clamping block, 621-first groove body, 622-first guide pillar, 623-first spring, 624-first clamping tooth plate, 625-second groove body, 626-tooth plate, 627-stop lever 628-first gear, 629-second gear, 630-transmission belt, 631-third groove body 633-second gear, 632-second spring, 634-second guide pillar, 617-second clamping plate, 623-third gear, and 63641-third guide pillar and 637-handle.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1, the embodiment of the invention comprises a support plate 1, wherein a supporting leg 2 is arranged on the support plate 1, a power supply and distribution box 3 is connected to the supporting leg 2, and the mine power supply and distribution device with a dampproof function further comprises:
a heat dissipation assembly 4 installed at a side portion of the power supply and distribution box 3 for reducing the temperature inside the power supply and distribution box 3;
Dampproofing case 5 installs supply block terminal 3 lateral part, dampproofing case 5 internally mounted has dustproof dampproofing subassembly 6, dustproof dampproofing subassembly 6 is used for avoiding radiator unit 4 is with external dust and moisture suction supply block terminal 3 inside.
When this mine that possesses dampproofing function uses power supply and distribution device, simultaneously radiator unit 4 can be to the inside forced air cooling and the heat dissipation of power supply and distribution box 3, avoid the inside heat accumulation of power supply and distribution box 3 that the circulation of air is unsmooth to lead to under the mine, accelerate the circulation of air speed, reduce service temperature, simultaneously, because ore deposit below dust is more, there is great moisture in the air, when radiator unit 4 uses, dustproof dampproofing unit 6 filters the impurity in the air, avoid impurity to enter into the circuit short circuit that power supply and distribution box 3 inside led to, also can absorb the moisture in the air simultaneously, ensure to enter into the inside dry gas that is of power supply and distribution box 3, prevent to wet.
As shown in fig. 1 to 9, in the embodiment of the present invention, the heat dissipation assembly 4 includes:
A mounting tube 41 mounted on the side wall of the power supply and distribution box 3, wherein a fixing frame 42 is mounted in the mounting tube 41;
The driving motor 43 is mounted on the fixing frame 42, an output end of the fixing frame 42 is connected with a rotating shaft 44, and fan blades 45 are mounted on the side of the rotating shaft 44.
As shown in fig. 1 to 9, in the embodiment of the present invention, the dust and moisture proof assembly 6 includes:
a connection port 61 provided in the moisture-proof case 5, the connection port 61 being fitted with the mounting pipe 41;
A dust-proof filter plate 62 mounted on the side of the moisture-proof box 5, wherein a self-cleaning dust-removing component is mounted on the dust-proof filter plate 62, and the self-cleaning dust-removing component is used for cleaning and discharging dust accumulated on the dust-proof filter plate 62;
the installation opening 63 is formed in the side part of the moisture-proof box 5, an installation plate 64 is arranged in the installation opening 63 in a matched mode, a through notch 65 is formed in the installation plate 64, a baffle frame 66 is arranged at one end of the through notch 65, and a moisture absorption plate 67 is arranged in the through notch 65;
An automatic dismounting assembly is mounted on the mounting plate 64 for automatically dismounting and fixing the mounting plate 64 and the moisture absorbing plate 67.
During the use, automatic dismouting subassembly can be with mounting panel 64 automatic fixation in mounting hole 63 department, avoid because the sealed that rocks the lead to is not tight, simultaneously automatic dismouting subassembly is fixed mounting panel 64 in mounting hole 63, still can fix hygroscopic plate 67, promptly when taking off mounting panel 64, can be automatic remove fixedly to hygroscopic plate 67, conveniently change or inspect hygroscopic plate 67, and when mounting panel 64 is fixed in mounting hole 63 inside, can be automatic fix hygroscopic plate 67, hygroscopic plate 67 takes place to rock when avoiding the use.
As shown in fig. 1 to 9, in an embodiment of the present invention, the self-cleaning dust removing assembly includes:
The installation frame 68 is installed inside the moisture-proof box 5, a first motor 69 is installed on the installation frame 68, and the output end of the first motor 69 is connected with a threaded rod 610;
The threaded block 611 is in threaded connection with the threaded rod 610, a second motor 612 is installed on the threaded block 611, an output end of the second motor 612 is connected with a shaft lever 613, and a rolling brush 614 is installed on the side part of the shaft lever 613;
and a dust collecting assembly installed inside the moisture proof box 5 for collecting dust swept down by the rolling brush 614.
As shown in fig. 1 to 9, in an embodiment of the present invention, the dust collection assembly includes:
A notch 615, which is opened at one side of the moisture-proof box 5, and a dust box 616 is arranged in the notch 615 in a matching way;
A flexible connection board 617 installed at one side of the dust collection box 616, a handle 618 is installed on the flexible connection board 617, and a clamping slot 619 is formed on the flexible connection board 617;
and a clamping block 620, which is installed at the side part of the moisture-proof box 5, wherein the clamping block 620 is matched with the clamping groove 619.
When in use, the first motor 69 drives the threaded rod 610 to rotate, so as to drive the threaded block 611 to perform reciprocating lifting motion, and meanwhile, the second motor 612 can be started, then the second motor 612 can drive the shaft rod 613 to rotate, and then the dustproof filter plate 62 is cleaned through the rolling brush 614, accumulated dust is swept down in the dust collection box 616, and then the accumulated dust is deformed in a mode of breaking the flexible connection plate 617, so that the clamping groove 619 is separated from the clamping block 620, and the dust collection box 616 can be taken out from the notch 615 to process accumulated dust.
As shown in fig. 1 to 9, in an embodiment of the present invention, the automatic disassembly and assembly includes:
The first groove body 621 is formed in the mounting plate 64, a first guide post 622 is mounted in the first groove body 621, a first spring 623 is sleeved on the first guide post 622, and a first tooth clamping plate 624 is connected to the first guide post 622 in a sliding manner;
The second groove body 625 is arranged in the mounting plate 64, a toothed plate 626 is slidably connected in the second groove body 625, a stop lever 627 is arranged between the toothed plates 626, and the stop lever 627 is matched with the moisture absorption plate 67;
The first gear 628 and the second gear 629 are rotatably connected to the mounting plate 64, the first gear 628 and the second gear 629 are respectively matched with the first tooth blocking plate 624 and the tooth plate 626, and a transmission belt 630 is sleeved between the first gear 628 and the second gear 629 and between the adjacent second gears 629;
A clamping assembly is mounted on the mounting plate 64 for limiting the position of the mounting plate 64.
When the device is used, the mounting plate 64 is inserted into the mounting opening 63, when the inclined surface of the first clamping plate 624 contacts with the edge of the mounting opening 63, the first clamping plate 624 is pushed into the first groove 621, the first clamping plate 624 drives the first gear 628 to rotate, and then the transmission belt 630 controls all the second gears 629 to rotate, so that the toothed plate 626 moves under the pushing of the second gears 629, the stop lever 627 moves to the moisture absorption plate 67, the position of the moisture absorption plate 67 is limited, and falling is avoided.
As shown in fig. 1 to 9, in an embodiment of the present invention, the clamping assembly includes:
The third groove body 631 is arranged on the mounting plate 64, a second guide post 632 is arranged in the third groove body 631, a second spring 633 is sleeved on the second guide post 632, and a second tooth clamping plate 634 is connected on the second guide post 632 in a sliding manner;
A third gear 635 rotatably connected to the inside of the mounting plate 64, the third gear 635 and the second rack plate 634 are mutually matched, and a pull rope 636 is wound on the third gear 635;
A fourth groove body 637, which is disposed on the mounting plate 64, wherein a third guide post 638 is mounted in the fourth groove body 637, a pulling post 639 is slidably connected to the third guide post 638, and the pulling post 639 is connected to the pulling rope 636;
a first handle 640 mounted on one end of the mounting plate 64, and a second handle 641 mounted on the pulling post 639, wherein the first handle 640 and the second handle 641 are mutually matched;
a middle wheel 642 rotatably connected to the mounting plate 64, the middle wheel 642 being engaged with the pull string 636.
When the first latch plate 624 enters the mounting opening 63 and the second latch plate 634 is separated from the mounting opening 63, the second latch plate 634 is ejected under the action of the second spring 633, the mounting plate 64 is fixed by using the matching relationship between the second latch plate 634 and the side wall of the moisture proof box 5, when the mounting plate 64 needs to be removed, the first handle 640 is held and the second handle 641 is lifted upwards, the second handle 641 drives the pulling column 639 to move upwards, the third gear 635 is pulled to rotate by using the pulling rope 636, the third gear 635 drives the second latch plate 634 to move, and the second latch plate 634 is retracted into the third groove 631, so that the mounting plate 64 can be removed at the moment, and the operation is simple.
To sum up, when this mine that possesses dampproofing function uses power supply and distribution unit, the radiator unit 4 can be to the inside forced air cooling and the heat dissipation of power supply and distribution box 3, avoid the inside heat accumulation of power supply and distribution box 3 that unsmooth air circulation led to under the mine, accelerate the air circulation speed, reduce service temperature, simultaneously, because ore deposit below dust is more, there is great moisture in the air, when radiator unit 4 uses, dustproof dampproofing subassembly 6 filters the impurity in the air, avoid impurity to enter into the circuit short circuit that power supply and distribution box 3 inside led to, also can absorb the moisture in the air simultaneously, ensure to enter into the inside dry gas of power supply and distribution box 3, prevent to wet.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510027894.1A CN119482049B (en) | 2025-01-08 | 2025-01-08 | A mine power supply and distribution device with moisture-proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510027894.1A CN119482049B (en) | 2025-01-08 | 2025-01-08 | A mine power supply and distribution device with moisture-proof function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119482049A true CN119482049A (en) | 2025-02-18 |
| CN119482049B CN119482049B (en) | 2025-06-20 |
Family
ID=94593671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510027894.1A Active CN119482049B (en) | 2025-01-08 | 2025-01-08 | A mine power supply and distribution device with moisture-proof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119482049B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214673494U (en) * | 2020-12-04 | 2021-11-09 | 江苏三辰智能科技有限公司 | Dust-protection type looped netowrk cabinet |
| CN220306795U (en) * | 2023-07-20 | 2024-01-05 | 徐州译水自动化科技有限公司 | Electric automatization switch board with dampproofing function |
| CN220754162U (en) * | 2023-09-05 | 2024-04-09 | 内蒙古欣特利电气有限公司 | Switch cabinet shell with heat dissipation function |
| CN222261784U (en) * | 2024-03-26 | 2024-12-27 | 重庆枋源电力设备有限公司 | A dust-proof low-voltage powerless compensation device |
-
2025
- 2025-01-08 CN CN202510027894.1A patent/CN119482049B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214673494U (en) * | 2020-12-04 | 2021-11-09 | 江苏三辰智能科技有限公司 | Dust-protection type looped netowrk cabinet |
| CN220306795U (en) * | 2023-07-20 | 2024-01-05 | 徐州译水自动化科技有限公司 | Electric automatization switch board with dampproofing function |
| CN220754162U (en) * | 2023-09-05 | 2024-04-09 | 内蒙古欣特利电气有限公司 | Switch cabinet shell with heat dissipation function |
| CN222261784U (en) * | 2024-03-26 | 2024-12-27 | 重庆枋源电力设备有限公司 | A dust-proof low-voltage powerless compensation device |
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| Publication number | Publication date |
|---|---|
| CN119482049B (en) | 2025-06-20 |
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