CN107017569A - A kind of Intelligent dehumidifying system for high-tension switch cabinet - Google Patents
A kind of Intelligent dehumidifying system for high-tension switch cabinet Download PDFInfo
- Publication number
- CN107017569A CN107017569A CN201710229825.4A CN201710229825A CN107017569A CN 107017569 A CN107017569 A CN 107017569A CN 201710229825 A CN201710229825 A CN 201710229825A CN 107017569 A CN107017569 A CN 107017569A
- Authority
- CN
- China
- Prior art keywords
- baffle
- switch cabinet
- actuating sleeve
- cabinet body
- air inlet
- Prior art date
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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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses a kind of Intelligent dehumidifying system for high-tension switch cabinet, actuating sleeve is equipped with the rotating shaft of switchblade knife and earthing switch blade, provided with the first baffle that the cavity volume of actuating sleeve is divided into three cavitys in actuating sleeve, second baffle and third baffle, the angle that first baffle and second baffle are formed is less than 180 ° and is more than 90 °, on actuating sleeve first row stomata and second row stomata are opened up along the axis of actuating sleeve, the first arc air inlet duct is opened up on first baffle actuating sleeve side wall corresponding with the cavity that third baffle is formed, the second arc air inlet duct is opened up on first baffle actuating sleeve side wall corresponding with the cavity that second baffle is formed, the radian of first arc air inlet duct and the second arc air inlet duct is all higher than 90 °, the radian in the air admission hole center of circle to the second row stomata center of circle is more than 90 °, the present invention provides a kind of moisture signal received by humidity sensor in switch cabinet body, centrifugal blower starts the Intelligent dehumidifying system for high-tension switch cabinet to automatic dehumidifying in switch cabinet body.
Description
Technical field
The present invention relates to switch cubicle field, a kind of Intelligent dehumidifying system for high-tension switch cabinet is more particularly to.
Background technology
Switchyard opposing seal is not tight, when ambient humidity is higher, the temperature difference is larger, and humid air is easily along door and window gap, electricity
Cable ditch and ventilative grid gap are got in, and part humid air can be along along the gap access switch cabinet of cabinet, easily around the corner
Aggregation, it is impossible to discharge, the dew condensation phenomenon of switch cubicle, is easily caused the generation of safe operation accident, and when temperature is higher in switch, its
The electric capacity of electric elements declines, and causes electric current excessive, fuse easily burns, therefore needs a special equipment to solve temperature in cabinet simultaneously
Spend the problem of high and humidity is excessive.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of by wet in humidity sensor reception switch cabinet body
Signal is spent, and controls centrifugal blower to start the intelligence for high-tension switch cabinet to carrying out blowing hot-air automatic dehumidifying in switch cabinet body
Can dehumidification system.
To achieve the above object, the invention provides following technical scheme：A kind of Intelligent dehumidifying for high-tension switch cabinet
Switchblade knife, earthing switch blade and some electric elements are provided with system, including switch cabinet body, switch cabinet body, it is described to open
Close and humidity sensor is provided with cabinet body, the humidity sensor connects centrifugal blower, the centrifugal fan air outlet connection
There is drier, the air outlet of the drier is connected with solenoid directional control valve, two commutation interface difference of the solenoid directional control valve
It is connected with the top of dehumidification pipe and driving tube, the inside of the dehumidification pipe connecting switch cabinet body, the switch cabinet body and opens up
Have to remove to be equipped with wet hole, the rotating shaft of the switchblade knife and earthing switch blade in actuating sleeve, the actuating sleeve and be provided with actuating sleeve
Cavity volume be divided into the first baffle, second baffle and third baffle of three cavitys, the first baffle, second baffle and third gear
One end of plate is on the axis of actuating sleeve, and the angle that the first baffle and second baffle are formed is less than 180 ° and is more than 90 °,
The third baffle is on the symmetry axis of first baffle and second baffle, along the axis pair of actuating sleeve on the bottom surface of the actuating sleeve
Title offers first row stomata and second row stomata, the chamber that the first exhaust hole position is formed in first baffle and third baffle
In vivo, the second exhaust hole position in second exhaust hole position in the cavity that second baffle and third baffle are formed, described
The first arc air inlet duct, the first gear are offered on the side wall of one baffle plate actuating sleeve corresponding with the cavity that third baffle is formed
The second arc air inlet duct is offered on the side wall of plate actuating sleeve corresponding with the cavity that second baffle is formed, first arc enters
The radian of air drain and the second arc air inlet duct is all higher than 90 °, and the actuating sleeve is externally provided with the fixed cover fixed with switch cabinet body,
Offer air admission hole on the fixed cover, the air admission hole connects the first arc air inlet duct or the second arc air inlet duct, it is described enter
The radian in the center of circle of stomata to the center of circle of second row stomata is more than 90 °, and the fixed cover is provided with what is fitted with actuating sleeve bottom surface
Offered on cover plate, the cover plate at correspondence second row stomata on through hole, the direction of rotation of the switchblade knife and earthing switch blade
Both sides be provided with for respectively by switchblade knife and the magnet of earthing switch blade adhesive, being offered in the switch cabinet body logical
Hole, the driving tube is stretched into switch cabinet body and inserting end is connected with three-way connection, two interfaces of the three-way connection
Connect to be provided with the air admission hole at correspondence switchblade knife and earthing switch blade, the switch cabinet body respectively and be used for detection switch cabinet sheet
The ammeter of internal electric elements electric current, the ammeter connection solenoid directional control valve and centrifugal blower, described remove sets in wet hole
It is equipped with the first check valve, first check valve is connected with inclined mozzle, it is vertical that one end of the mozzle is connected with
Header, the bottom of the header is connected with water storage box, and the water storage box is connected with cooling coil, the cooling coil with
Outer wall laminating in switch cabinet body at some electric elements of correspondence.
The further dehumidification pipe, which is provided with heater box, the heater box, is provided with copper mesh.
The gas outlet of the further mozzle connects the air inlet of heater box.
The further header is provided with the second check valve.
Temperature sensor is provided with the further switch cabinet body, provided with straight between the water storage box and cooling coil
Type solenoid valve, the direct-acting electromagnetic valve connects temperature sensor.
Of the invention in summary, by the wind-force of centrifugal blower with regard to plug-in strip can be controlled to close and open, its is simple in construction, nothing
Unnecessary equipment is needed, makes also simple, without fuse, just the electric elements in switch cubicle can be effectively protected, had
There is dehumidifying and automatically turn on the function of closure switch plug-in strip and earthing switch blade.
Brief description of the drawings
Fig. 1 is a kind of profile of Intelligent dehumidifying system for high-tension switch cabinet of the invention；
Fig. 2 is the actuating sleeve and the explosive view 1 of fixed cover of a kind of Intelligent dehumidifying system for high-tension switch cabinet of the invention；
Fig. 3 is the actuating sleeve and the explosive view 2 of fixed cover of a kind of Intelligent dehumidifying system for high-tension switch cabinet of the invention.
Mark explanation：1st, switch cabinet body；2nd, switchblade knife；3rd, earthing switch blade；4th, fixed cover；5th, three-way connection；6th, drive
Dynamic pipe；7th, solenoid directional control valve；8th, centrifugal blower；9th, humidity sensor；10th, temperature sensor；11st, heater box；12nd, copper mesh；13、
Dehumidification pipe；14th, direct-acting electromagnetic valve；15th, ammeter；16th, water storage box；17th, the second check valve；18th, cooling coil；19th, water conservancy diversion
Pipe；20th, the first check valve；21st, rotating shaft；22nd, first baffle；23rd, first row stomata；24th, the first arc air inlet duct；25th, drive
Set；26th, third baffle；27th, second row stomata；28th, second baffle；29th, the second arc air inlet duct；30th, cover plate；31st, through hole；
32nd, magnet.
Embodiment
The embodiment for inventing a kind of Intelligent dehumidifying system for high-tension switch cabinet is made furtherly referring to figs. 1 to Fig. 3
It is bright.
It is provided with a kind of Intelligent dehumidifying system for high-tension switch cabinet, including switch cabinet body 1, switch cabinet body 1
Humidity sensor 9, the humidity are provided with switchblade knife 2, earthing switch blade 3 and some electric elements, the switch cabinet body 1
Sensor 9 connects centrifugal blower 8, and the air outlet of centrifugal blower 8 is connected with drier, and the air outlet of the drier is connected with
Solenoid directional control valve 7, two commutation interfaces of the solenoid directional control valve 7 are connected to dehumidification pipe 13 and driving tube 6, the dehumidifying
The inside of the connecting switch cabinet body 1 of pipe 13, the top of the switch cabinet body 1 is offered except wet hole, the switchblade knife 2 and is connect
It is equipped with to be provided with actuating sleeve 25, the actuating sleeve 25 in the rotating shaft 21 of ground plug-in strip 3 and the cavity volume of actuating sleeve 25 is divided into three chambers
First baffle 22, second baffle 28 and the third baffle 26 of body, the first baffle 22, second baffle 28 and third baffle 26
One end is on the axis of actuating sleeve 25, and the angle that the first baffle 22 and second baffle 28 are formed is more than less than 180 °
90 °, the third baffle 26 is on the symmetry axis of first baffle 22 and second baffle 28, along drive on the bottom surface of the actuating sleeve 25
The axisymmetrical of dynamic set 25 offers first row stomata 23 and second row stomata 27, and the first row stomata 23 is located at first baffle
22 and the cavity that is formed of third baffle 26 in, the second row stomata 27 is located at second row stomata 27 and is located at the He of second baffle 28
In the cavity that third baffle 26 is formed, the actuating sleeve 25 corresponding with the cavity that third baffle 26 is formed of first baffle 22
The first arc air inlet duct 24, the actuating sleeve corresponding with the cavity that second baffle 28 is formed of first baffle 22 are offered on the wall of side
The second arc air inlet duct 29, the radian of the first arc air inlet duct 24 and the second arc air inlet duct 29 are offered on 25 side wall
Be all higher than 90 °, the actuating sleeve 25 be externally provided with the fixed cover 4 fixed with switch cabinet body 1, the fixed cover 4 offer into
Stomata, the air admission hole connects the first arc air inlet duct 24 or the second arc air inlet duct 29, the center of circle of the air admission hole to second
The radian in the center of circle of steam vent 27 is more than 90 °, and the fixed cover 4 is provided with the cover plate 30 fitted with the bottom surface of actuating sleeve 25, described
Offered on cover plate 30 at correspondence second row stomata 27 on through hole 31, the direction of rotation of the switchblade knife 2 and earthing switch blade 3
Both sides are provided with for respectively by switchblade knife 2 and the magnet 32 of the adhesive of earthing switch blade 3, being offered in the switch cabinet body 1
Through hole 31, the driving tube 6 is stretched into switch cabinet body 1 and inserting end is connected with three-way connection 5, the three-way connection 5
Two interfaces, which connect to be provided with the air admission hole at correspondence switchblade knife 2 and earthing switch blade 3, the switch cabinet body 1 respectively, to be used for
The ammeter 15 of electric elements electric current in detection switch cabinet body 1, the connection solenoid directional control valve 7 of ammeter 15 and centrifugation wind
Machine 8.
When the moisture that the humidity sensor 9 in switch cabinet body 1 is experienced in switch cabinet body 1 is too high, signal is transmitted
To centrifugal blower 8, centrifugal blower 8 receives signal and simultaneously started, after wind-force is dried by drier, by solenoid directional control valve 7, so
Afterwards again by the access switch cabinet body 1 of dehumidification pipe 13, by the moisture in switch cabinet body 1 by being discharged except wet hole, so that will
Moisture in switch cabinet body 1 is removed, and when the ammeter 15 in switch cabinet body 1, detects the electrical equipment member in switch cabinet body 1
Part causes its electric capacity to decline because temperature is too high, and when excessive by the electric current of electric elements, centrifugal blower 8 starts, and electromagnetism is changed
Commutate, the wind-force of centrifugal blower 8 is entered in switch cabinet body 1 by driving tube 6, and pass through three-way connection 5 to valve 7
Respectively enter in the fixed cover 4 at switchblade knife 2 and earthing switch blade 3, by the air admission hole on fixed cover 4, enter actuating sleeve
In 25, the air admission hole in the present embodiment is connected with the first arc air inlet duct 24 first, due to first baffle 22, second baffle
28 and third baffle 26 cavity volume of actuating sleeve 25 is divided into three cavitys, when air pressure is excessive in one of cavity, will push away
Dynamic third baffle 26 rotates, because the radian in the center of circle to the center of circle of second row stomata 27 of the air admission hole is more than 90 °, therefore at least
Need to be rotated by 90 °, when such air admission hole is turned in the first arc air inlet duct 24 more than 90 °, air admission hole and second row stomata 27
It just can turn on, therefore need to overcome magnet 32 to be rotated by 90 ° the attraction of switchblade knife 2, the air pressure in such driving chamber passes through
Through hole 31 on two steam vents 27 and cover plate 30 with the corresponding position of second row stomata 27 discharges, and air pressure is in gentle state, this
When positioned at the opposite side of switchblade knife 2 magnet 32 it is attractive to switchblade knife 2 because switchblade knife 2 rotation exceed
90 °, there is the face of interaction, the relative magnetic with original side with switchblade knife 2 positioned at the magnet 32 of the opposite side of switchblade knife 2
The suction of iron 32 is larger, therefore by switchblade knife 2 toward opposite side adhesive, switchblade knife 2 is closed, and similarly earthing switch blade 3 is also closed,
So as to which controlling switch cabinet automatically powers off protection, without using fuse, now centrifugal blower 8 is closed, and the now quilt of actuating sleeve 25
90 ° are have rotated, because first row stomata 23 and second row stomata 27 are opened up along the axisymmetrical of actuating sleeve 25, works as actuating sleeve
When 25 180 ° of rotation, the position of second row stomata 27 is replaced by first row stomata 23, the second arc air inlet duct 29 and air inlet
Hole is connected, and when closure switch plug-in strip 2 and earthing switch blade 3 is needed, as long as restarting centrifugal blower 8, wind-force is to second gear
The active force of plate 28, because the power acted on first baffle 22 can not rotate switchblade knife 2 and earthing switch blade 3, therefore can only be right
The actuating pressure of second baffle 28, so that actuating sleeve 25 is reversely rotated, because first row stomata 23 instead of second row stomata 27
Position, and the position of the air admission hole on fixed cover 4 is constant, therefore air admission hole and second row stomata 27 are still radian is more than 90 °
Thus need to reversely rotate more than 90 ° of angle, such switchblade knife 2 and earthing switch blade 3 are flipped up more than 90 °, similarly
Attracted by the magnet 32 of top, to drive shaft in air pressure when being drained, the suction shaft plug-in strip 2 of magnet 32 and earthing switch blade 3 are inhaled
Splice grafting leads to, while drive shaft have rotated 180 ° of resets again, so only needs to control the startup and closing of centrifugal blower 8, can just control
Switchblade knife 2 and earthing switch blade 3 processed are closed and opened, and its is simple in construction, without unnecessary equipment, make also simple, without molten
Electric elements in switch cubicle just can be effectively protected by disconnected device, with dehumidifying and the He of automatic opening closure switch plug-in strip 2
The function of earthing switch blade 3.
Preferred described remove in wet hole of the present embodiment is provided with the first check valve 20, by above-mentioned technical proposal, can keep away
Exempt from the extraneous moist air of tool when usually dehydrating unit is not actuated, pour in down a chimney in switch cabinet body 1, so as to when switch
Moisture is difficult accumulation in cabinet body 1.
Preferred first check valve 20 of the present embodiment is connected with inclined mozzle 19, one end of the mozzle 19
Vertical header is connected with, the bottom of the header is connected with water storage box 16, and the water storage box 16 is connected with cooler pan
Outer wall laminating at pipe 18, the cooling coil 18 some electric elements corresponding with switch cabinet body 1, when moisture is single from first
When discharge into valve 20, blown to by drainage tube on vertical header, vapor adhesion is formed on the inwall of header
Droplet, is collected, it is to avoid the moisture containing steam reenters centrifugal blower 8 so that the bottom of header is flowed into water storage box 16
It is interior, repeat to dehumidify, improve the efficiency of dehumidifying, and the condensed water of collection is cooled down in switch cabinet body 1 by cooling coil 18
Electric elements, effectively make use of resource, energy-conserving and environment-protective.
The preferred dehumidification pipe 13 of the present embodiment, which is provided with heater box 11, the heater box 11, is provided with copper mesh 12, by
Generation cupric oxide can be reacted in copper and oxygen, therefore again after air water removal, can be by oxygen by copper mesh 12 hot in heater box 11
Remove, only stay in nitrogen access switch cabinet body 1, so as to avoid blast and the generation of combustion incident in switch cabinet body 1.
The gas outlet of the preferred mozzle 19 of the present embodiment connects the air inlet of heater box 11, passes through above-mentioned technical side
Case, the gas dehumidified can be directly entered back into switch cabinet body 1 and dehumidified, reduction centrifugal blower 8 and drier
Loss.
The preferred header of the present embodiment is provided with the second check valve 17, can avoid the condensed water in water storage box 16
Entered by suck-back in mozzle 19.
Temperature sensor 10, the water storage box 16 and cooler pan are provided with the preferred switch cabinet body 1 of the present embodiment
Direct-acting electromagnetic valve 14 is provided between pipe 18, the direct-acting electromagnetic valve 14 connects temperature sensor 10, by setting temperature to pass
Sensor 10, and temperature sensor 10 is connected into direct-acting electromagnetic valve 14, can be with real-time collecting retaining, and work as in switch cabinet body 1
Electric elements temperature it is too high when just control straight magnetic valve 14 to open, the electric elements in switch cabinet body 1 are cooled down
Radiating, so as to improve the utilization ratio of condensed water.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. it is provided with switch in a kind of Intelligent dehumidifying system for high-tension switch cabinet, including switch cabinet body, switch cabinet body
Plug-in strip, earthing switch blade and some electric elements, it is characterized in that：Humidity sensor is provided with the switch cabinet body, it is described wet
Sensor connection centrifugal blower is spent, the centrifugal fan air outlet is connected with drier, and the air outlet of the drier is connected with
Solenoid directional control valve, two commutation interfaces of the solenoid directional control valve are connected to dehumidification pipe and driving tube, and the dehumidification pipe connects
Connect and offered at the top of the inside of switch cabinet body, the switch cabinet body except wet hole, the switchblade knife and earthing switch blade
Be equipped with actuating sleeve in rotating shaft, be provided with the actuating sleeve by the cavity volume of actuating sleeve be divided into three cavitys first baffle, second
Baffle plate and third baffle, one end of the first baffle, second baffle and third baffle is on the axis of actuating sleeve, and described
The angle that one baffle plate and second baffle are formed is less than 180 ° and is more than 90 °, and the third baffle is in first baffle and second baffle
Symmetry axis on, offer first row stomata and second row stomata along the axisymmetrical of actuating sleeve on the bottom surface of the actuating sleeve,
The first exhaust hole position is in the cavity that first baffle and third baffle are formed, and the second exhaust hole position is in second exhaust
Hole position is in the cavity that second baffle and third baffle are formed, and the first baffle is corresponding with the cavity that third baffle is formed
The first arc air inlet duct, first baffle driving corresponding with the cavity that second baffle is formed are offered on the side wall of actuating sleeve
Offer the second arc air inlet duct on the side wall of set, the radian of the first arc air inlet duct and the second arc air inlet duct is all higher than
90 °, the actuating sleeve is externally provided with the fixed cover fixed with switch cabinet body, offers air admission hole on the fixed cover, it is described enter
Stomata connects the first arc air inlet duct or the second arc air inlet duct, the arc in the center of circle of the air admission hole to the center of circle of second row stomata
Degree is more than 90 °, and the fixed cover is provided with the cover plate fitted with actuating sleeve bottom surface, the cover plate and opened at correspondence second row stomata
Provided with through hole, the both sides on the direction of rotation of the switchblade knife and earthing switch blade are provided with for switchblade knife and will connect respectively
Through hole is offered in the magnet of ground plug-in strip adhesive, the switch cabinet body, the driving tube is stretched into switch cabinet body and stretched
Enter end and be connected with three-way connection, two interfaces of the three-way connection connect entering at correspondence switchblade knife and earthing switch blade respectively
The ammeter for the intrinsic electric elements electric current of detection switch cabinet, the electric current are provided with stomata, the switch cabinet body
Table connects solenoid directional control valve and centrifugal blower, and described except the first check valve is provided with wet hole, first check valve is connected with
Inclined mozzle, one end of the mozzle is connected with vertical header, and the bottom of the header is connected with retaining
Case, the water storage box is connected with outer at cooling coil, the cooling coil some electric elements corresponding with switch cabinet body
Wall is fitted.
2. a kind of Intelligent dehumidifying system for high-tension switch cabinet according to claim 1, it is characterized in that：The dehumidification pipe
It is provided with heater box, the heater box and is provided with copper mesh.
3. a kind of Intelligent dehumidifying system for high-tension switch cabinet according to claim 2, it is characterized in that：The mozzle
Gas outlet connect heater box air inlet.
4. a kind of Intelligent dehumidifying system for high-tension switch cabinet according to claim 3, it is characterized in that：The header
It is provided with the second check valve.
5. a kind of Intelligent dehumidifying system for high-tension switch cabinet according to claim 3, it is characterized in that：The switch cubicle
Temperature sensor is provided with body, direct-acting electromagnetic valve, the direct driving type electromagnetic are provided between the water storage box and cooling coil
Valve connects temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229825.4A CN107017569B (en) | 2017-04-10 | 2017-04-10 | Intelligent dehumidification system for high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229825.4A CN107017569B (en) | 2017-04-10 | 2017-04-10 | Intelligent dehumidification system for high-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107017569A true CN107017569A (en) | 2017-08-04 |
| CN107017569B CN107017569B (en) | 2023-08-01 |
Family
ID=59446344
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229825.4A Active CN107017569B (en) | 2017-04-10 | 2017-04-10 | Intelligent dehumidification system for high-voltage switch cabinet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109167266A (en) * | 2018-11-01 | 2019-01-08 | 温州电力设计有限公司 | A kind of GIS Intelligent control cabinet dehumidification device |
| CN110739626A (en) * | 2019-11-26 | 2020-01-31 | 国网河南省电力公司西峡县供电公司 | heat dissipation electric power cabinet for electric power engineering |
| CN111817159A (en) * | 2020-06-29 | 2020-10-23 | 江山市鑫源电气有限公司 | Drainage type intelligent dehumidifying device |
| CN112568620A (en) * | 2020-12-08 | 2021-03-30 | 魏龙霄 | Domestic intelligent wardrobe based on intelligence is made |
| CN112690578A (en) * | 2020-12-28 | 2021-04-23 | 江西元正木业有限公司 | Dampproofing painting and calligraphy cabinet of protection against insects |
| CN112736726A (en) * | 2020-11-12 | 2021-04-30 | 国网河南省电力公司叶县供电公司 | Integrative electric power install bin of dampproofing heat dissipation |
| CN115085063A (en) * | 2022-07-18 | 2022-09-20 | 安徽君锐电力设备有限公司 | Heat dissipation type box and box-type substation |
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