CN114447774A - Power distribution box for power construction and use method thereof - Google Patents
Power distribution box for power construction and use method thereof Download PDFInfo
- Publication number
- CN114447774A CN114447774A CN202210008680.6A CN202210008680A CN114447774A CN 114447774 A CN114447774 A CN 114447774A CN 202210008680 A CN202210008680 A CN 202210008680A CN 114447774 A CN114447774 A CN 114447774A
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- CN
- China
- Prior art keywords
- distribution box
- mounting
- dryer
- electric power
- power construction
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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
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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
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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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
- H02B1/46—Boxes; 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
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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
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
- H02B1/505—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor retractable installations
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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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses a distribution box for electric power construction and a using method thereof. Through being provided with installation mechanism, install the mount pad and be connected with flexible folding rod in one side of installation mechanism, one end through flexible folding rod is connected with the mounting panel, the cooperation through mounting bar and slider is installed the distributor in the side in the mounting panel side, then made things convenient for all distribution equipment to pass through the whole complex effect of flexible folding rod on installation mechanism, make it provide the effect of unsettled installation, the flexible position of adjusting the distributor through flexible folding rod can be convenient for in actual use.
Description
Technical Field
The invention relates to the technical field of distribution boxes, in particular to a distribution box for power construction and a using method thereof.
Background
The block terminal is electrical equipment, has small, simple installation, and technical performance is special, the rigidity, and the configuration function is unique, not restricted by the place, and the application is more general, and the operation is reliable and stable, and space utilization is high, takes up an area of few and has the characteristics of environmental protection effect. The mass parameters on the data of the distribution box generally form a low-voltage distribution box by assembling switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirements. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch.
However, among the prior art, current block terminal is because structural design is single, owing to do not possess water proof and heat dissipation function at the in-process that uses, then can appear the problem that short circuit and high temperature caused damage appear in the inside equipment of block terminal when meetting to use under comparatively abominable environment.
Therefore, we propose a distribution box for electric power construction and a method for using the same so as to solve the problems mentioned above.
Disclosure of Invention
The invention aims to provide a distribution box for power construction and a using method thereof, and aims to solve the problems that equipment inside the distribution box is short-circuited and damaged due to high temperature when the distribution box is used in a severe environment because the distribution box provided by the background technology is single in structural design and does not have waterproof protection and heat dissipation functions in the using process.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a block terminal for electric power construction, includes block terminal and base, base fixed mounting is in the bottom of block terminal, the inner wall fixed mounting of block terminal has installation mechanism, one side fixed mounting of installation mechanism has the mount pad, one side movable mounting of mount pad has flexible folding rod, the one end swing joint of flexible folding rod has the mounting panel, one side fixed mounting of mounting panel has two mounting bars, one side slidable mounting of mounting bar has a plurality of sliders, the side fixed mounting of slider has the distributor, the top fixed mounting of block terminal has the drying apparatus, the inside of drying apparatus is provided with the drying-machine, the inside fixed mounting of drying apparatus has the connecting seat, one side fixedly connected with drying tube of connecting seat.
Preferably, one side fixed mounting of drying-device has the water tank, the bottom fixed mounting of water tank has waterproof roof, waterproof roof fixed mounting is at the top of block terminal.
Preferably, the inboard of base is provided with two heat radiators, the top movable mounting of heat radiator has the heat dissipation fan, the ventilation hole has been seted up to the bottom of block terminal.
Preferably, the top of block terminal has seted up the stoving mouth, the both sides evenly distributed of block terminal has a plurality of waterproof grids.
Preferably, the front surface of the distribution box is movably provided with a box door, and the bottom of the base is fixedly provided with a bottom plate.
Preferably, the front surface of the box door is provided with a visible window, and the front surface of the box door is movably provided with a rotating handle.
Preferably, a reinforcing support seat is fixedly installed between the bottom plate and the base, and four mounting holes are formed in the bottom of the bottom plate in a penetrating mode.
Preferably, a pipeline is fixedly connected between the dryer and the water tank.
A use method of a distribution box for power construction comprises the following steps:
s1, an installation mechanism is installed inside the distribution box, one side of the installation mechanism is connected with a telescopic folding rod through an installation seat, and is connected with an installation plate through the telescopic folding rod, so that the installation mechanism and the telescopic folding rod are matched to provide effective installation effect for distribution equipment conveniently, the equipment can be driven to stretch, later-stage disassembly and assembly work is facilitated, and the installation mechanism mainly has suspended installation and is convenient to provide effective waterproof effect;
s2, mounting bars are mounted on the side faces of the mounting plates, and the power distributor can be conveniently and quickly disassembled and assembled through sliding connection between the mounting bars and the sliding blocks, so that the efficiency is further improved;
s3, a drying opening is formed in the top of the distribution box, a dryer is mounted on the top of the distribution box, a dryer and a drying pipe are arranged on the inner side of the dryer, the dryer and the drying pipe are connected with a water tank through a connecting seat, and the drying effect on the inside of the distribution box can be achieved through the matching of the dryer and the drying pipe;
s4, a heat radiator is arranged in the base, and a heat radiating fan is arranged at the top of the heat radiator, so that a heat radiating function can be provided for the interior of the distribution box;
s5, through the cooperation of the waterproof top plate and the waterproof grating, the top and the side of the distribution box can effectively have the waterproof function while providing the mounting and ventilating functions.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the mounting mechanism, the mounting seat is mounted on one side of the mounting mechanism and connected with the telescopic folding rod, the mounting plate is connected with one end of the telescopic folding rod, the distributor is mounted on the side surface of the mounting plate through the matching of the mounting strip and the sliding block, so that all distribution equipment can be conveniently and integrally matched through the telescopic folding rod on the mounting mechanism, a suspended mounting effect is provided, the position of the distributor can be conveniently adjusted through the telescopic folding rod in the actual use process, on one hand, later-stage internal detection and maintenance work is facilitated, and workers can conveniently and rapidly disassemble and assemble through the mounting strip and the sliding block, the working efficiency is improved, meanwhile, a waterproof effect can be effectively provided, the phenomenon that water vapor is adsorbed inside the distribution box to influence the distributor is avoided, and the overall safety is improved;
2. the drying device is arranged on the top of the distribution box through the waterproof top plate, the drying opening is formed in the top of the distribution box, the drying machine, the drying pipe and the connecting seat are arranged in the drying device and connected with the upper water tank, and when water vapor is generated in the distribution box due to the use environment in the process of reuse, an effective drying effect can be provided for the interior of the distribution box through the low-temperature drying effect in the drying device, so that the dryness of the interior of the distribution box can be guaranteed;
3. through internally mounted at the base have heat dissipation machine and heat dissipation fan, with the top of pedestal mounting at the block terminal, and be equipped with waterproof grid in the both sides of block terminal, the ventilation hole has been seted up in the bottom of block terminal, thereby made things convenient for when meetting the higher environment of temperature under using, can pass through the effect of heat dissipation machine and heat dissipation fan, provide the heat dissipation function of blowing to the inside of block terminal, wherein waterproof grid can guarantee to provide effectual water-proof effects simultaneously ventilating effectively, the inside of rivers entering block terminal has been avoided.
Drawings
Fig. 1 is a schematic perspective view of a distribution box for electric power construction according to the present invention;
fig. 2 is a schematic structural view of the inside of a distribution box for electric power construction according to the present invention;
fig. 3 is a schematic view of a bottom view of a distribution box for electric power construction according to the present invention;
FIG. 4 is a perspective view of a mounting bracket for a distribution box for use in power construction, according to the present invention;
fig. 5 is a schematic structural view of a heat dissipation mechanism of a distribution box for electric power construction according to the present invention;
fig. 6 is a schematic structural view of a power distribution box drying mechanism for electric power construction according to the present invention.
In the figure:
1. a distribution box; 2. an installation mechanism; 3. a dryer; 101. a box door; 102. a base; 103. a base plate; 201. a mounting base; 202. a telescopic folding rod; 203. mounting a plate; 204. mounting a bar; 205. a slider; 206. a power distributor; 301. a dryer; 302. a drying duct; 303. a connecting seat; 304. a water tank; 305. a waterproof top plate; 306. a heat sink; 307. a heat dissipation fan; 308. drying the opening; 309. a water-proof grid.
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 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.
Example 1
Referring to fig. 1-6, the present invention provides a technical solution: a distribution box for electric power construction comprises a distribution box 1 and a base 102, wherein the base 102 is fixedly arranged at the bottom of the distribution box 1, an installation mechanism 2 is fixedly arranged on the inner wall of the distribution box 1, an installation seat 201 is fixedly arranged on one side of the installation mechanism 2, a telescopic folding rod 202 is movably arranged on one side of the installation seat 201, one end of the telescopic folding rod 202 is movably connected with an installation plate 203, two installation bars 204 are fixedly arranged on one side of the installation plate 203, a plurality of sliding blocks 205 are slidably arranged on one side of the installation bars 204, a distributor 206 is fixedly arranged on the side surface of the sliding blocks 205, a dryer 3 is fixedly arranged at the top of the distribution box 1, a dryer 301 is arranged inside the dryer 3, a connecting seat 303 is fixedly arranged inside the dryer 3, a drying pipe 302 is fixedly connected with one side of the connecting seat 303, a box door 101 is movably arranged on the front surface of the distribution box 1, and a bottom plate 103 is fixedly arranged at the bottom of the base 102, the front of chamber door 101 is provided with visual window, and the front movable mounting of chamber door 101 has the rotation handle, and fixed mounting has the enhancement supporting seat between bottom plate 103 and the base 102, and four mounting holes have been seted up in the bottom of bottom plate 103 run through.
The working principle of the embodiment is as follows: one side of the mounting mechanism 2 is provided with a mounting seat 201 and is connected with a telescopic folding rod 202, one end of the telescopic folding rod 202 is connected with a mounting plate 203, the power distributor 206 is mounted on the side of the mounting plate 203 by the cooperation of the mounting bar 204 and the slider 205, the integral matching of all the power distribution equipment through the telescopic folding rod 202 on the mounting mechanism 2 is facilitated, so that the power distribution equipment provides a suspended mounting effect, the position of the power distributor 206 can be conveniently adjusted through the extension and retraction of the telescopic folding rod 202 in the actual use process, on one hand, the later internal detection and maintenance work is facilitated, through mounting bar 204 and slider 205 be convenient for the workman and carry out quick dismouting work, still can provide water-proof effects effectively when having improved work efficiency, avoid block terminal 1's inside to adsorb steam and influence on distributor 206, improved whole security.
Example 2
According to fig. 1-6, one side fixed mounting of drying-machine 3 has water tank 304, the bottom fixed mounting of water tank 304 has waterproof roof 305, waterproof roof 305 fixed mounting is at the top of block terminal 1, the inboard of base 102 is provided with two heat abstractors 306, the top movable mounting of heat abstractor 306 has heat dissipation fan 307, the ventilation hole has been seted up to block terminal 1's bottom, stoving mouth 308 has been seted up at block terminal 1's top, block terminal 1's both sides evenly distributed has a plurality of waterproof grids 309, fixedly connected with pipeline between drying-machine 3 and the water tank 304.
The working principle of the embodiment is as follows: the dryer 3 is arranged on the top of the distribution box 1 through a waterproof top plate 305, a drying opening 308 is arranged on the top of the distribution box 1, a dryer 301, a drying pipe 302, a connecting seat 303 and an upper water tank 304 are arranged in the dryer 3, and the dryer can be reused, when water vapor appears in the distribution box 1 due to use environment, the interior of the distribution box 1 can provide effective drying effect through low-temperature drying effect in the dryer 3, so that the dryness of the interior of the distribution box 1 can be ensured, the heat radiator 306 and the heat radiating fan 307 are arranged in the base 102, the base 102 is arranged on the top of the distribution box 1, the waterproof grids 309 are arranged on two sides of the distribution box 1, the vent hole is arranged at the bottom of the distribution box 1, so that the dryer can be used in a high-temperature environment through the action of the heat radiator 306 and the heat radiating fan 307, providing the inside of block terminal 1 with the heat dissipation function of blowing, wherein waterproof grid 309 can guarantee to provide effectual water-proof effects simultaneously ventilating effectively, has avoided rivers to get into the inside of block terminal 1.
A use method of a distribution box for power construction comprises the following steps:
s1, an installation mechanism 2 is installed inside a distribution box 1, one side of the installation mechanism 2 is connected with a telescopic folding rod 202 through an installation seat 201, and is connected with an installation plate 203 through the telescopic folding rod 202, so that the effective installation effect on distribution equipment can be conveniently provided through the matching of the installation mechanism 2 and the telescopic folding rod 202, the equipment can be driven to stretch, the later-stage disassembly and assembly work is convenient, and the suspension installation is mainly realized, so that the effective waterproof effect is conveniently provided;
s2, the side surface of the mounting plate 203 is provided with the mounting bar 204, and the power distributor 206 can be conveniently and rapidly disassembled and assembled by the sliding connection between the mounting bar 204 and the sliding block 205, so that the efficiency is further improved;
s3, a drying opening 308 is formed in the top of the distribution box 1, a dryer 3 is installed on the top of the distribution box, a dryer 301 and a drying pipe 302 are arranged on the inner side of the dryer 3, the dryer is connected with a water tank 304 through a connecting seat 303, and the drying effect on the interior of the distribution box 1 can be achieved through the matching of the dryer and the drying pipe;
s4, the heat dissipation machine 306 is installed inside the base 102, and the heat dissipation fan 307 is installed on the top of the heat dissipation machine 306, so as to provide a heat dissipation function for the inside of the distribution box 1;
s5, the top and the side of the electric distribution box 1 can be effectively waterproof while providing the installation and ventilation function through the cooperation of the waterproof top plate 305 and the waterproof grid 309.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a block terminal for electric power construction, includes block terminal (1) and base (102), its characterized in that: the base (102) is fixedly installed at the bottom of the distribution box (1), the inner wall fixed mounting of the distribution box (1) is provided with a mounting mechanism (2), one side fixed mounting of the mounting mechanism (2) is provided with a mounting seat (201), one side movable mounting of the mounting seat (201) is provided with a telescopic folding rod (202), one end of the telescopic folding rod (202) is movably connected with a mounting plate (203), one side fixed mounting of the mounting plate (203) is provided with two mounting bars (204), one side of the mounting bar (204) is provided with a plurality of sliding blocks (205) in a sliding manner, the side of each sliding block (205) is fixedly provided with a distributor (206), the top of the distribution box (1) is fixedly provided with a dryer (3), the inside of the dryer (3) is provided with a dryer (301), and the inside of the dryer (3) is fixedly provided with a connecting seat (303), one side fixedly connected with stoving pipe (302) of connecting seat (303).
2. The distribution box for electric power construction according to claim 1, wherein: one side fixed mounting of drying-device (3) has water tank (304), the bottom fixed mounting of water tank (304) has waterproof roof (305), waterproof roof (305) fixed mounting is at the top of block terminal (1).
3. The distribution box for electric power construction according to claim 1, wherein: the inboard of base (102) is provided with two heat radiators (306), the top movable mounting of heat radiator (306) has heat dissipation fan (307), the ventilation hole has been seted up to the bottom of block terminal (1).
4. The distribution box for electric power construction according to claim 1, wherein: drying opening (308) have been seted up at the top of block terminal (1), the both sides evenly distributed of block terminal (1) has a plurality of waterproof grids (309).
5. The distribution box for electric power construction according to claim 1, wherein: the front surface of the distribution box (1) is movably provided with a box door (101), and the bottom of the base (102) is fixedly provided with a bottom plate (103).
6. The distribution box for electric power construction according to claim 5, wherein: the front surface of the box door (101) is provided with a visible window, and the front surface of the box door (101) is movably provided with a rotating handle.
7. The distribution box for electric power construction according to claim 5, wherein: a reinforcing support seat is fixedly installed between the bottom plate (103) and the base (102), and four mounting holes are formed in the bottom of the bottom plate (103) in a penetrating mode.
8. The distribution box for electric power construction according to claim 2, wherein: a pipeline is fixedly connected between the dryer (3) and the water tank (304).
9. A method of using a distribution box for electric power construction, characterized by using the distribution box for electric power construction according to any one of claims 1 to 8, comprising the steps of:
s1, an installation mechanism (2) is installed inside the distribution box (1), one side of the installation mechanism (2) is connected with a telescopic folding rod (202) through an installation seat (201), and is connected with an installation plate (203) through the telescopic folding rod (202), so that the distribution equipment can be conveniently and effectively installed through the matching of the installation mechanism (2) and the telescopic folding rod (202), the equipment can be driven to stretch, the later-stage disassembly and assembly work is facilitated, the suspension installation is mainly realized, and the effective waterproof effect is conveniently provided;
s2, mounting bars (204) are mounted on the side faces of the mounting plates (203), and the power distributor (206) can be conveniently and quickly disassembled and assembled through sliding connection between the mounting bars (204) and the sliding blocks (205), so that the efficiency is further improved;
s3, a drying opening (308) is formed in the top of the distribution box (1), a dryer (3) is installed on the top of the distribution box, a dryer (301) and a drying pipe (302) are arranged on the inner side of the dryer (3), a water tank (304) is connected with the dryer through a connecting seat (303), and the drying effect on the interior of the distribution box (1) can be achieved through the matching of the dryer and the drying pipe;
s4, a heat radiator (306) is arranged inside the base (102), and a heat radiation fan (307) is arranged on the top of the heat radiator (306), so that a heat radiation function can be provided for the inside of the distribution box (1);
s5, the waterproof function can be effectively achieved at the same time of providing the installation and ventilation functions on the top and the side of the distribution box (1) through the matching of the waterproof top plate (305) and the waterproof grating (309).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008680.6A CN114447774A (en) | 2022-01-06 | 2022-01-06 | Power distribution box for power construction and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210008680.6A CN114447774A (en) | 2022-01-06 | 2022-01-06 | Power distribution box for power construction and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114447774A true CN114447774A (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210008680.6A Pending CN114447774A (en) | 2022-01-06 | 2022-01-06 | Power distribution box for power construction and use method thereof |
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| Country | Link |
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| CN (1) | CN114447774A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208580961U (en) * | 2018-05-08 | 2019-03-05 | 南京亚力电气有限公司 | A kind of power distribution cabinet of installation easy to disassemble |
| CN213185122U (en) * | 2020-09-03 | 2021-05-11 | 苏州德力特自动化设备有限公司 | Intelligent electronic control device |
| CN213402023U (en) * | 2020-11-03 | 2021-06-08 | 河南富隆电气设备有限公司 | Switch board that facilitates use |
| CN213782520U (en) * | 2020-11-09 | 2021-07-23 | 浙江浙嘉电力设备股份有限公司 | High tension switchgear with waterproof function |
| CN213816895U (en) * | 2020-10-19 | 2021-07-27 | 甘肃天源恒业水利工程有限公司 | Moisture-proof device for power box for water conservancy and hydropower |
| CN214478573U (en) * | 2020-12-29 | 2021-10-22 | 石家庄环通电器有限公司 | Moisture-proof low-voltage power distribution cabinet |
-
2022
- 2022-01-06 CN CN202210008680.6A patent/CN114447774A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208580961U (en) * | 2018-05-08 | 2019-03-05 | 南京亚力电气有限公司 | A kind of power distribution cabinet of installation easy to disassemble |
| CN213185122U (en) * | 2020-09-03 | 2021-05-11 | 苏州德力特自动化设备有限公司 | Intelligent electronic control device |
| CN213816895U (en) * | 2020-10-19 | 2021-07-27 | 甘肃天源恒业水利工程有限公司 | Moisture-proof device for power box for water conservancy and hydropower |
| CN213402023U (en) * | 2020-11-03 | 2021-06-08 | 河南富隆电气设备有限公司 | Switch board that facilitates use |
| CN213782520U (en) * | 2020-11-09 | 2021-07-23 | 浙江浙嘉电力设备股份有限公司 | High tension switchgear with waterproof function |
| CN214478573U (en) * | 2020-12-29 | 2021-10-22 | 石家庄环通电器有限公司 | Moisture-proof low-voltage power distribution cabinet |
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