CN112629092B - High-voltage power distribution room safety protection device for preventing flying snow from entering equipment failure - Google Patents
High-voltage power distribution room safety protection device for preventing flying snow from entering equipment failure Download PDFInfo
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- CN112629092B CN112629092B CN202011510264.3A CN202011510264A CN112629092B CN 112629092 B CN112629092 B CN 112629092B CN 202011510264 A CN202011510264 A CN 202011510264A CN 112629092 B CN112629092 B CN 112629092B
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- side wall
- distribution room
- protective cover
- piece
- equipment failure
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- 241000533950 Leucojum Species 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 31
- 230000017525 heat dissipation Effects 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 14
- 230000020169 heat generation Effects 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 241001124156 Mecoptera Species 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000428 dust Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
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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
-
- 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
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention provides a safety protection device for a high-voltage power distribution room, which can prevent flying snow from entering and causing equipment failure, and belongs to the technical field of safety protection devices for high-voltage power distribution rooms. This avoid flying snow to get into high voltage distribution room safety device who causes equipment failure, utilize the drive wind wheel to pass through the epaxial removal cover of adjustable driving piece drive transfer, make the protection casing cover establish on the thermovent, can effectively the separation fly snow and enter into the inside of joining in marriage the electrical room, avoided the snowflake to join in marriage the electrical room inside and melt and increase the emergence of joining in marriage the electrical room inside humidity condition and the moisture attached to equipment mainboard surface condition, very big improvement the security of joining in marriage the electrical room and the stability of supplying power.
Description
Technical Field
The invention relates to the technical field of safety protection devices of high-voltage power distribution rooms, in particular to a safety protection device of a high-voltage power distribution room, which can prevent flying snow from entering the high-voltage power distribution room to cause equipment failure.
Background
High voltage distribution room generally indicates 6KV to 10 KV's high-voltage switch room, be the important position of project power supply, because of the high pressure has very big danger, consequently, all have very strict management requirements in aspects such as the maintenance management and waterproof dustproof of high voltage distribution room, nevertheless because the distribution room is at work, inside will produce a large amount of heats, and then need set up the thermovent on the lateral wall of distribution room, however the setting up of thermovent can increase sleet, the danger that the material such as dust goes on to the distribution room in increasing the distribution room and the reliability of power consumption, for this reason, the thermovent that is similar strip shutter structure has been designed, utilize inclined shielding plate or arc shielding plate, on the radiating basis of guaranteeing, carry out effectual sheltering from to sleet.
However, in the actual working environment of the power distribution room, when the power distribution room encounters snowing weather, the situation that the snowflakes flying in a non-directional manner fly into the high-voltage power distribution room through the heat dissipation port still occurs, the snowflakes are melted into water in the power distribution room to increase the humidity in the power distribution room, the danger of the power distribution room and the power supply stability are greatly improved, along with the increase of the humidity in the power distribution room, the moisture in the air can be attached to the surface of the main board of the power distribution equipment, the insulation of the main board in the power distribution equipment can be reduced for a long time, and under the condition of sudden power on, electronic elements in the power distribution equipment can face the possibility of being burnt or broken down of electronic circuits, and finally, the power distribution room can be caused to work abnormally.
Disclosure of Invention
In order to solve the technical problems, the invention provides a safety protection device for a high-voltage power distribution room, which prevents equipment failure caused by flying snow, and the safety protection device is realized by the following specific technical means: the device comprises a side wall, a heat dissipation port, a baffle, a conversion shaft, a movable sleeve, a protective cover, a filtering ventilation opening, a communicated diversion trench, a gathering cavity, a drainage pipe, an adjustable driving piece, a driving wind wheel, an elastic resetting piece, a change-over switch component, a guide wheel, a heat generation seat, a diversion channel, a friction piece, a friction layer and a diversion port.
The positions and the connection relations of the structures are as follows:
the heat dissipation device is characterized in that a heat dissipation port is formed in the side wall, a baffle corresponding to the heat dissipation port is connected to the outer side of the side wall, a conversion shaft is symmetrically and rotatably connected in the side wall, a moving sleeve is sleeved on the conversion shaft in a threaded manner, a protective cover is fixedly connected to the inner side of the side wall, the moving sleeve extends to the inner side of the side wall, filtering vents are uniformly arranged on the protective cover, a communicating diversion trench corresponding to the filtering vents is arranged on the protective cover, a gathering cavity corresponding to the communicating diversion trench is arranged on the bottom surface of the protective cover, a drain pipe is communicated with the gathering cavity, an adjustable driving piece is connected to the conversion shaft in a meshed manner, a driving wind wheel is connected to the outer side of the side wall, an elastic reset piece and a switching switch component are connected between the upper surface of the moving sleeve and the corresponding side wall, the switching switch component corresponds to the adjustable driving piece, and a guide wheel and a heat generation seat are sequentially and fixedly sleeved on the side of the adjustable driving piece opposite to the driving wind wheel, the side wall is provided with a flow guide channel corresponding to the guide wheel and the heat generating seat, the heat generating seat is uniformly inserted with a friction piece, the flow guide channel is provided with a friction layer corresponding to the friction piece, and the flow guide channel is communicated with a flow guide opening.
Preferably, the shield is slidably attached to the inside of the side wall by a sliding sleeve.
Preferably, the communicating diversion trenches are in a string shape and are uniformly connected, and diversion communicating ports communicated with the communicating diversion trenches are connected to the filtering ventilation openings, so that the snow water gathering efficiency is improved.
Preferably, the gathering chamber is inclined, and the drain pipe is connected at the low point of the gathering chamber.
Preferably, the adjustable driving part comprises a connecting shaft and a switching connecting piece, the connecting shaft is fixedly connected to the driving wind wheel, and the connecting shaft is connected to the switching shaft through the switching connecting piece in a meshed mode.
Preferably, the change-over switch assembly comprises a connecting piece and a connecting base, the connecting piece and the connecting base are respectively connected with the corresponding moving sleeve and the corresponding side wall, and the change-over switch assembly is connected with the change-over connecting piece.
Preferably, the guide channel covers the guide wheel and the heat generation seat, and an elastic connecting piece is connected between the friction piece and the heat generation seat.
The invention has the following beneficial effects:
1. the safety protection device for the high-voltage power distribution room for preventing the flying snow from entering the equipment from causing the equipment fault is characterized in that under the action of wind power, the driving wind wheel drives the conversion shaft to rotate through the adjustable driving piece, the conversion shaft drives the protective cover to cover the heat dissipation port under the condition of strong wind through the moving sleeve, when the flying snow enters the power distribution room from the heat dissipation port, the flying snow can be directly filtered and blocked by the protective cover, the flying snow can be effectively prevented from entering the inside of the power distribution room, the condition that the snow is melted in the power distribution room to increase the humidity in the power distribution room is avoided, the danger of the power distribution room and the instability of power supply are correspondingly reduced, meanwhile, the condition that moisture is attached to the surface of a power distribution equipment mainboard to reduce the insulativity of the equipment mainboard is reduced, and the condition that electronic elements in the equipment are burnt or electronic circuits are punctured under the condition of sudden power supply is effectively avoided, and then the stability of the work of the power distribution room is correspondingly improved.
2. This avoid flying snow to get into high voltage distribution room safety device who causes equipment failure, drive the leading wheel through adjustable driving piece and produce the air current, the friction member on the seat that combines to generate heat produces the heat along with rubbing with the frictional layer on the water conservancy diversion passageway inside wall mutually, increase blows the air current temperature to the protection casing through the water conservancy diversion mouth, can improve the speed that the snowflake melts fast, avoided the snowflake to adhere to on the protection casing freeze and influence the ventilation condition of protection casing, further improved the security and the stability of distribution room.
Drawings
Fig. 1 is a schematic view of the overall front structure of the present invention.
Fig. 2 is an overall partial front sectional view of the present invention.
Fig. 3 is a partial side sectional structural schematic view of the shield of the present invention.
Fig. 4 is a schematic sectional view of the heat generating base of the present invention.
Fig. 5 is a schematic sectional structure view of the guide wheel of the present invention.
FIG. 6 is an enlarged view of A of FIG. 1 according to the present invention.
FIG. 7 is an enlarged view of B of FIG. 1 according to the present invention.
In the figure: 1. a side wall; 2. a heat dissipation port; 3. a baffle plate; 4. a conversion shaft; 5. moving the sleeve; 6. a protective cover; 7. a filtering vent; 8. the diversion trench is communicated; 9. a collection chamber; 10. a drain pipe; 11. an adjustable drive member; 12. driving the wind wheel; 13. an elastic reset member; 14. a diverter switch assembly; 15. a guide wheel; 16. a heat generation seat; 17. a flow guide channel; 18. a friction member; 19. a friction layer; 20. and a flow guide opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-7:
the safety protection device for the high-voltage distribution room, which avoids flying snow from entering equipment faults, comprises a side wall 1, a heat dissipation port 2, a baffle 3, a conversion shaft 4, a moving sleeve 5, a protective cover 6, a filtering ventilation opening 7, a communicating diversion trench 8, a gathering cavity 9, a drainage pipe 10, an adjustable driving piece 11, a driving wind wheel 12, an elastic reset piece 13, a change-over switch assembly 14, a guide wheel 15, a heat generation seat 16, a diversion channel 17, a friction piece 18, a friction layer 19 and a diversion opening 20.
When in operation, the positions and the connection relations of the structures are as follows:
the snow water collecting device is characterized in that a heat radiating port 2 is formed in a side wall 1, a baffle 3 corresponding to the heat radiating port 2 is connected to the outer side of the side wall 1, a conversion shaft 4 is symmetrically and rotatably connected to the inner side of the side wall 1, a movable sleeve 5 is sleeved on the conversion shaft 4 in a threaded manner, a protective cover 6 is fixedly connected to the inner side of the side wall 1 after the movable sleeve 5 extends to the inner side of the side wall 1, filtering vent holes 7 are uniformly formed in the protective cover 6, a communicating diversion trench 8 corresponding to the filtering vent holes 7 is formed in the protective cover 6, the communicating diversion trench 8 is in a string shape and is uniformly connected, diversion communicating ports communicated with the communicating diversion trench 8 are connected to the filtering vent holes 7, snow water collecting efficiency is improved, a collecting cavity 9 corresponding to the communicating diversion trench 8 is formed in the bottom surface of the protective cover 6, a drainage pipe 10 is communicated to the collecting cavity 9, and is in an inclined shape, the water drainage pipe 10 is connected at the low point of the gathering cavity 9, the switching shaft 4 is connected with an adjustable driving piece 11 in a meshing manner, the adjustable driving piece 11 comprises a connecting shaft and a switching connecting piece, the connecting shaft is fixedly connected to the driving wind wheel 12 and is connected to the switching shaft 4 in a meshing manner through the switching connecting piece, the driving wind wheel 12 is connected to the outer side of the side wall 1, an elastic reset piece 13 and a switching switch assembly 14 are connected between the upper surface of the movable sleeve 5 and the corresponding side wall 1, the switching switch assembly 14 comprises a connecting piece and a connecting base which are respectively connected and corresponding to the movable sleeve 5 and the side wall 1, the switching switch assembly 14 is connected to the switching connecting piece, a guide wheel 15 and a heat generating seat 16 are sequentially fixedly sleeved on one side of the adjustable driving piece 11 opposite to the driving wind wheel 12, and a flow guide channel 17 corresponding to the guide wheel 15 and the heat generating seat 16 is arranged on the side wall 1, the heat generation seat 16 is uniformly inserted with friction pieces 18, the guide channel 17 covers the guide wheel 15 and the heat generation seat 16, an elastic connecting piece is connected between the friction pieces 18 and the heat generation seat 16, a friction layer 19 corresponding to the friction pieces 18 is arranged on the guide channel 17, and the guide channel 17 is communicated with a guide opening 20.
The working principle is as follows: the safety protection device for the high-voltage distribution room for avoiding equipment failure caused by flying snow, under a normal state, the protection cover 6 is positioned at a position of the side wall 1, which is not corresponding to the heat dissipation port 2, when flying snow is encountered, the flying snow can be known to be the condition which can only occur under the condition of strong wind according to the principle of gravity and air flow, therefore, the driving wind wheel 12 is driven to rotate under the action of strong wind, the driving wind wheel 12 drives the conversion shaft 4 to rotate through the adjustable driving piece 11, the conversion shaft 4 drives the movable sleeve 5 which is in threaded sleeve connection with the conversion shaft to move towards the direction of the heat dissipation port 2 in the rotating process, the movable sleeve 5 synchronously drives the protection cover 6 to slide on the side wall 1, when the protection cover 6 is completely covered on the heat dissipation port 2, at the moment, the change-over switch assembly 14 between the movable sleeve 5 and the side wall 1 is connected, and the connecting shaft on the adjustable driving piece 11 is disconnected with the conversion shaft 4, when flying snow enters the power distribution room from the heat dissipation port 2, the flying snow is directly filtered and blocked by the protective cover 6, and the heat in the power distribution room is effectively dissipated through the filtering ventilation opening 7 on the protective cover 6, although the area for air flow circulation is reduced, the flowing speed of air flow is increased under the action of wind force, so that the heat dissipation in the power distribution room is not influenced, meanwhile, the flying snow can be effectively prevented from entering the power distribution room, the situation that the humidity in the power distribution room is increased due to melting of the snow in the power distribution room is avoided, the danger of the power distribution room and the instability of power supply are correspondingly reduced, meanwhile, the situation that moisture is attached to the surface of a power distribution equipment mainboard to reduce the insulativity of the equipment mainboard is reduced, and the situation that electronic elements in the equipment are burnt or electronic circuits are broken down under the condition of sudden electrification is effectively avoided, and then the stability of the work of the power distribution room is correspondingly improved.
Secondly, the connecting shaft on the adjustable driving part 11 drives the guide wheel 15 to generate air flow, the friction part 18 on the connecting shaft is driven by the heat generation seat 16 to rotate along with the rotation of the heat generation seat 16 in combination with the connecting shaft, heat is generated by the friction between the friction part 18 and the friction layer 19 on the inner side wall 1 of the flow guide channel 17 in the rotating process of the friction part 18, the temperature of the air flow generated by the guide wheel 15 is increased, the air flow is blown to the protective cover 6 through the flow guide port 20, the melting speed of the snowflakes can be rapidly increased, the condition that the snowflakes are attached to the protective cover 6 to be frozen to influence the ventilation condition of the protective cover 6 is avoided, and the safety and the stability of the power distribution room are further improved.
In addition, the safety protection device is also suitable for preventing dust from entering the inside of the power distribution room through the heat dissipation port 2 in windy weather.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an avoid flying snow to get into and cause equipment failure's high voltage distribution room safety device, includes lateral wall (1), its characterized in that: the heat dissipation device is characterized in that a heat dissipation port (2) is formed in the side wall (1), a baffle (3) corresponding to the heat dissipation port (2) is connected to the outer side of the side wall (1), a conversion shaft (4) is symmetrically and rotatably connected to the inner side of the side wall (1), a movable sleeve (5) is sleeved on the conversion shaft (4) in a threaded manner, a protective cover (6) is fixedly connected to the inner side of the movable sleeve (5) extending to the side wall (1), filtering ventilation openings (7) are uniformly formed in the protective cover (6), communicating diversion grooves (8) corresponding to the filtering ventilation openings (7) are formed in the protective cover (6), a gathering cavity (9) corresponding to the communicating diversion grooves (8) is formed in the bottom surface of the protective cover (6), a drainage pipe (10) is communicated with the gathering cavity (9), an adjustable driving piece (11) is connected to the conversion shaft (4) in a meshed manner, and a driving wind wheel (12) is connected to the outer side of the adjustable driving piece (11) extending to the side wall (1), an elastic reset piece (13) and a change-over switch component (14) are connected between the upper surface of the movable sleeve (5) and the corresponding side wall (1), the change-over switch component (14) corresponds to the adjustable driving piece (11), a guide wheel (15) and a heat generating seat (16) are sequentially and fixedly sleeved on one side of the adjustable driving piece (11) opposite to the driving wind wheel (12), a flow guide channel (17) corresponding to the guide wheel (15) and the heat generating seat (16) is arranged on the side wall (1), a friction piece (18) is uniformly inserted on the heat generating seat (16), a friction layer (19) corresponding to the friction piece (18) is arranged on the flow guide channel (17), and a flow guide opening (20) is communicated on the flow guide channel (17);
under the normal state, the protective cover (6) is positioned at the position of the side wall (1) which is not corresponding to the heat dissipation port (2), when the snow flies, the wind wheel (12) is driven to rotate under the action of strong wind, the wind wheel (12) is driven to drive the conversion shaft (4) to rotate through the adjustable driving piece (11), the conversion shaft (4) drives the movable sleeve (5) which is in threaded sleeve connection to move towards the direction of the heat dissipation port (2) in the rotating process, the movable sleeve (5) synchronously drives the protective cover (6) to slide on the side wall (1), when the protective cover (6) is completely covered on the heat dissipation port (2), at the moment, the movable sleeve (5) is connected with the switch component (14) between the side wall (1), the connecting shaft on the adjustable driving piece (11) is driven to be disconnected with the conversion shaft (4), when the snow flies into the power distribution room through the heat dissipation port (2), can be directly filtered and blocked by the protective cover (6), and the filtering ventilation opening (7) on the protective cover (6) can effectively dissipate heat in the power distribution room; the guide wheel (15) is driven by the connecting shaft on the adjustable driving piece (11) to generate air flow, the friction piece (18) on the connecting shaft is driven by the heat generation seat (16) to rotate along with the rotation of the heat generation seat (16) in combination with the connecting shaft, and in the rotating process of the friction piece (18), the friction piece rubs against the friction layer (19) on the inner side wall (1) of the flow guide channel (17) to generate heat, the temperature of the air flow generated by the guide wheel (15) is increased, and the air flow is blown to the protective cover (6) through the flow guide port (20), so that the melting speed of snowflakes can be quickly increased, and the condition that the snowflakes are attached to the protective cover (6) to freeze to influence the ventilation of the protective cover (6) is avoided.
2. A high voltage distribution room safety shield against equipment failure from flying snow, as claimed in claim 1, wherein: the protective cover (6) is connected to the inner side of the side wall (1) in a sliding mode through the moving sleeve (5).
3. A high voltage distribution room safety shield against equipment failure from flying snow, as claimed in claim 1, wherein: the communicating diversion trenches (8) are uniformly connected in a string shape, and diversion communicating ports communicated with the communicating diversion trenches (8) are connected to the filtering ventilation openings (7).
4. A high voltage distribution room safety shield against equipment failure from flying snow, as claimed in claim 1, wherein: the gathering cavity (9) is inclined, and the drain pipe (10) is connected to the low point of the gathering cavity (9).
5. A high voltage distribution room safety shield against equipment failure from flying snow, as claimed in claim 1, wherein: the adjustable driving piece (11) comprises a connecting shaft and a switching connecting piece, the connecting shaft is fixedly connected to the driving wind wheel (12), and the connecting shaft is connected to the conversion shaft (4) in a meshed mode through the switching connecting piece.
6. A high voltage distribution room safety shield against equipment failure from flying snow according to claim 5, wherein: the change-over switch component (14) comprises a connecting piece and a connecting seat, the connecting piece and the connecting seat are respectively connected with the corresponding moving sleeve (5) and the side wall (1), and the change-over switch component (14) is connected with the change-over connecting piece.
7. A high voltage distribution room safety shield against equipment failure from flying snow according to claim 5, wherein: the guide channel (17) is covered on the guide wheel (15) and the heat generating seat (16), and an elastic connecting piece is connected between the friction piece (18) and the heat generating seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011510264.3A CN112629092B (en) | 2020-12-18 | 2020-12-18 | High-voltage power distribution room safety protection device for preventing flying snow from entering equipment failure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011510264.3A CN112629092B (en) | 2020-12-18 | 2020-12-18 | High-voltage power distribution room safety protection device for preventing flying snow from entering equipment failure |
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| CN112629092A CN112629092A (en) | 2021-04-09 |
| CN112629092B true CN112629092B (en) | 2022-04-15 |
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| CN202011510264.3A Active CN112629092B (en) | 2020-12-18 | 2020-12-18 | High-voltage power distribution room safety protection device for preventing flying snow from entering equipment failure |
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| CN113423251B (en) * | 2021-07-09 | 2022-08-09 | 国网河南省电力公司电力科学研究院 | Heat abstractor for big data processing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013062425A (en) * | 2011-09-14 | 2013-04-04 | Toshiba Corp | Ventilation device of electronic apparatus installed in outdoor environment |
| CN205791061U (en) * | 2016-06-08 | 2016-12-07 | 金乡县金地电力有限责任公司 | Distributed board outdoor |
| CN206022949U (en) * | 2016-10-08 | 2017-03-15 | 广州市白云区嘉淇机电设备厂（普通合伙） | A kind of external regulator cubicle of rain and snow |
| CN208806523U (en) * | 2018-10-17 | 2019-04-30 | 陕西荣兴电气有限公司 | A kind of lightning protection vacuum circuit breaker |
| CN210608238U (en) * | 2019-11-09 | 2020-05-22 | 山东中茂电气设备有限公司 | Power distribution cabinet box body with moisture-proof function |
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Effective date of registration: 20220324 Address after: 137018 No. 38-7, Zhongxing West Road, Baicheng City, Jilin Province Applicant after: Baicheng Shunda Instrument Co.,Ltd. Address before: 315000 No.1, Lane 18, Xinzhi Road, kaokeng Industrial Park, xinliangtingli, Daxu Town, Xiangshan County, Ningbo City, Zhejiang Province Applicant before: Ningbo yiningfan Resistance Technology Co.,Ltd. |
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