CN110707572B - Power distribution cabinet heat dissipation device based on centrifugal principle - Google Patents
Power distribution cabinet heat dissipation device based on centrifugal principle Download PDFInfo
- Publication number
- CN110707572B CN110707572B CN201911226667.2A CN201911226667A CN110707572B CN 110707572 B CN110707572 B CN 110707572B CN 201911226667 A CN201911226667 A CN 201911226667A CN 110707572 B CN110707572 B CN 110707572B
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- fixedly connected
- plate
- air outlet
- rotating plate
- cabinet body
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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
-
- 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
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to the technical field of electrical engineering, and discloses a heat dissipation device of a power distribution cabinet based on a centrifugal principle, which comprises a cabinet body, wherein a dust baffle plate is fixedly connected inside the cabinet body, an air inlet hole is formed inside the dust baffle plate, a fan cover is fixedly connected inside the cabinet body, an air outlet hole is formed in the surface of the fan cover, a motor base is fixedly connected inside the air outlet hole, a motor shaft is movably connected inside the fan cover, a cover plate is fixedly connected outside the motor shaft, a rotating plate is fixedly connected outside the cover plate, fan blades are fixedly connected outside the rotating plate, the air flow speed is accelerated through the matching use of the rotating plate and the fan blades, the air flow speed inside the power distribution cabinet is further increased, the heat dissipation effect is increased, the normal operation of electric elements inside the power distribution cabinet is ensured, and the service life of the electric elements inside the power distribution cabinet, and the maintenance cost of the equipment is reduced.
Description
Technical Field
The invention relates to the technical field of electrical engineering, in particular to a power distribution cabinet heat dissipation device based on a centrifugal principle.
Background
The power distribution cabinet is a general name of a motor control center and is used in occasions with dispersed loads and less loops; the power distribution system distributes the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load, the equipment provides protection, monitoring and control for the load, and the power distribution cabinet is developed more and more along with the development of electrical engineering.
In the using process of the power distribution cabinet, the heat dissipation, dust insulation and waterproof effects of the power distribution cabinet are generally considered, however, the existing power distribution cabinet usually focuses on the heat dissipation effect of the power distribution cabinet to sacrifice the dustproof effect of the power distribution cabinet, and usually a louver is arranged on the surface of a cabinet body to achieve the heat dissipation effect, but the heat dissipation effect of the heat dissipation mode is poor, so that the accelerated aging of electrical equipment in the power distribution cabinet is easily caused, the cost of part replacement is increased, the heat dissipation effect is poor, and even the electrical equipment in the power distribution cabinet is damaged due to high temperature, so that circuit failure is caused, unnecessary economic loss is caused, and the direct arrangement of the louver leads the inside and the outside of the power distribution cabinet to be communicated for a long time, so that dust and moisture are easily introduced into the inside of the power distribution cabinet through, pile up the heat dissipation that a large amount of dust also can influence the switch board, influence the normal operating of the inside electrical equipment of switch board, and moisture gets into, then directly induces the damage of the inside electrical equipment of switch board easily.
In order to solve the above problems, the inventor provides a power distribution cabinet heat dissipation device based on a centrifugal principle, which has the advantages of good heat dissipation effect, ensuring normal operation of electrical equipment inside a power distribution cabinet, prolonging the service life of the electrical equipment, ensuring smoothness of a circuit, reducing the cost of maintenance, replacement and repair of the electrical equipment, avoiding circuit faults, reducing economic loss caused by the circuit faults, having good dustproof and waterproof effects, ensuring normal operation of the electrical equipment inside the power distribution cabinet, and prolonging the service life of the electrical equipment inside the power distribution cabinet.
Disclosure of Invention
In order to achieve the purposes of good heat dissipation effect, dust prevention and water prevention, the invention provides the following technical scheme: the utility model provides a switch board heat abstractor based on centrifugation principle, includes the cabinet body, dust board, fresh air inlet, fan casing, exhaust vent, motor cabinet, motor shaft, apron, commentaries on classics board, flabellum, first sealing ring, air outlet, shrouding, slide bar, spring, ring channel, second sealing ring, bearing frame, stator change group, permanent magnet, dash board, temperature controller, casing, fixed touch multitouch, activity touch multitouch, plunger, sleeve.
The positions and the connection relations of the structures are as follows:
a dust guard plate is fixedly connected inside the cabinet body, an air inlet hole is formed inside the dust guard plate, a fan cover is fixedly connected inside the cabinet body, an air outlet hole is formed in the surface of the fan cover, a motor base is fixedly connected inside the air outlet hole, a motor shaft is movably connected inside the fan cover, a cover plate is fixedly connected outside the motor shaft, a rotating plate is fixedly connected outside the cover plate, fan blades are fixedly connected outside the rotating plate, a first sealing ring is fixedly connected outside the rotating plate, an air outlet is formed outside the rotating plate, a sealing plate is slidably connected inside the air outlet, a sliding rod is fixedly connected outside the sealing plate, a spring is fixedly connected outside the sealing plate, a ring groove is formed in the surface of the motor base, a second sealing ring is slidably connected inside the ring groove, and a bearing is fixedly connected outside the motor shaft, the outside fixedly connected with bearing frame of bearing, the outside fixedly connected with stator of bearing frame changes the group, the inside fixedly connected with permanent magnet of apron, the outside fixedly connected with dash board of the cabinet body, the inside fixedly connected with temperature controller of the cabinet body.
The temperature controller comprises a shell, wherein a fixed contact block is fixedly connected to the inside of the shell, a movable contact block is slidably connected to the inside of the shell, a plunger is fixedly connected to the outside of the movable contact block, and a sleeve is slidably connected to the inside of the plunger.
Preferably, the fan cover is fixedly connected inside the cabinet body, and uniform air outlet holes are formed in the surface of the fan cover.
Preferably, the rotating plate is in an annular column shape, the fan blades are fixedly connected inside the rotating plate, the center of the rotating plate is provided with a hole, and the center hole at one end of the rotating plate is fixedly connected with the cover plate.
Preferably, the first sealing ring is fixedly connected to the central hole of the rotating plate far away from one side of the cover plate, the inner diameter of the first sealing ring is matched with the diameter of the central hole of the rotating plate, and the first sealing ring is connected with the cabinet body in a sliding mode.
Preferably, the air outlets are uniformly distributed on the side surface of the rotating plate, and the number of the air outlets is not less than twenty-six.
Preferably, the outer diameter of the sealing plate is matched with the inner diameter of the air outlet, and the number of the sealing plates is equal to that of the air outlet.
Preferably, the slide bars are connected inside the air outlet in a sliding manner, the number of the slide bars is equal to that of the air outlet, and at least four slide bars are arranged in each group.
Preferably, the springs are fixedly connected to the inner portion of the air outlet, and the number of the springs is equal to that of the air outlet.
Preferably, the second sealing ring is fixedly connected with the cover plate.
Preferably, the rain shield covers the outer side of the dust shield.
Preferably, the temperature controller is electrically connected with the stator rotor set.
Preferably, the interior of the sleeve is filled with an inert gas.
Advantageous effects
Compared with the prior art, the invention provides a power distribution cabinet heat dissipation device based on a centrifugal principle, which has the following beneficial effects:
1. this switch board heat abstractor based on centrifugation principle uses through the cooperation of commentaries on classics board and flabellum to air flow velocity accelerates, and then increases the inside air flow velocity of switch board, thereby increases radiating effect, guarantees the normal operating of the inside electrical component of switch board, increases the inside electrical component's of switch board life, reduces the cost of maintenance of equipment.
2. This switch board heat abstractor based on centrifugation principle, through keeping off the dirt board, the cooperation of air outlet and shrouding is used, thereby reach and shelter from the dust effect, prevent that the dust from piling up inside the switch board, and then influence the normal use and the radiating effect of the inside electrical components of switch board, reduce the life of the inside electrical components of switch board, thereby increase the maintenance cost and the replacement cost of flesh equipment, and the shrouding is opened when rotating, shutoff air outlet when not rotating, automatic control, not only further reduce the entering of dust, it is extravagant to reduce the electric power resource amount simultaneously.
3. This switch board heat abstractor based on centrifugation principle uses through the cooperation of first sealing ring and second sealing ring, further reaches the effect that prevents dust and moisture entering, also guarantees simultaneously that board and flabellum rotate the stability of time.
4. This switch board heat abstractor based on centrifugation principle uses through the cooperation that temperature controller and stator change group to reach, change board and flabellum rotation when the high temperature, increase the inside air flow effect of switch board, increase the radiating effect, when the temperature is low, change board and flabellum stall, both resources are saved also makes the air outlet seal, prevents that the dust from getting into.
5. This switch board heat abstractor based on centrifugation principle, through this heat abstractor axle center department air inlet, radial air-out all around increases the switch board and increases gaseous flow range, reduces gaseous interference to promote radiating effect, and gaseous by changeing board diametric (al) and flowing, reduce the axial length of this heat abstractor, reduce and occupy the switch board inner space, increase the utilization ratio of switch board inner space.
Drawings
FIG. 1 is a schematic view of the overall connection of the structure of the present invention;
FIG. 2 is a schematic view of the connection of the stator rotating group, the cover plate, the motor base, the motor shaft, the bearing, the second sealing ring and the annular groove;
FIG. 3 is a schematic side view of the structure of the present invention showing the connection of the rotor plate, fan blades, fan guard and cover plate;
FIG. 4 is a schematic cross-sectional view of a temperature controller connection according to the present invention;
FIG. 5 is an enlarged view of the connection between the sealing plate, the sliding rod, the spring and the air outlet of part A of the structure of FIG. 1;
FIG. 6 is a schematic view of the structure of the present invention showing the closure of the outlet and the closure plate;
FIG. 7 is a schematic view of the structure of the present invention showing the opening of the outlet and the closure plate;
FIG. 8 is a schematic diagram of the contact state between the fixed contact and the movable contact of the structure of the present invention.
In the figure: 1. a cabinet body; 2. a dust guard; 3. an air inlet hole; 4. a fan guard; 5. an air outlet; 6. a motor base; 7. a motor shaft; 8. a cover plate; 9. rotating the plate; 10. a fan blade; 11. a first seal ring; 12. an air outlet; 13. closing the plate; 14. a slide bar; 15. a spring; 16. an annular groove; 17. a second seal ring; 18. a bearing; 19. a bearing seat; 20. the stator rotates the group; 21. a permanent magnet; 22. a flashing; 23. a temperature controller; 231. a housing; 232. fixing the contact block; 233. a movable contact block; 234. a plunger; 235. a sleeve.
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.
Referring to fig. 1-8, a heat dissipation device for a power distribution cabinet based on a centrifugal principle includes a cabinet body 1, a dust-blocking plate 2, an air inlet 3, a fan housing 4, an air outlet 5, a motor base 6, a motor shaft 7, a cover plate 8, a rotating plate 9, fan blades 10, a first sealing ring 11, an air outlet 12, a sealing plate 13, a sliding rod 14, a spring 15, an annular groove 16, a second sealing ring 17, a bearing 18, a bearing seat 19, a stator rotating group 20, a permanent magnet 21, a rain-shielding plate 22, a temperature controller 23, a housing 231, a fixed contact block 232, a movable contact block 233, a plunger 234, and a sleeve 235.
The positions and the connection relations of the structures are as follows:
a dust baffle plate 2 is fixedly connected inside the cabinet body 1, an air inlet hole 3 is formed inside the dust baffle plate 2, a fan cover 4 is fixedly connected inside the cabinet body 1, the fan cover 4 is fixedly connected inside the cabinet body 1, an even air outlet hole 5 is formed on the surface of the fan cover 4, an air outlet hole 5 is formed on the surface of the fan cover 4, a motor base 6 is fixedly connected inside the air outlet hole 5, a motor shaft 7 is movably connected inside the fan cover 4, a cover plate 8 is fixedly connected outside the motor shaft 7, a rotating plate 9 is fixedly connected outside the cover plate 8, the rotating plate 9 is in an annular column shape, fan blades 10 are fixedly connected inside the rotating plate 9, a central hole is formed in the rotating plate 9, a central hole in one end is fixedly connected with the cover plate 8, fan blades 10 are fixedly connected outside the rotating plate 9, and the air flowing speed is accelerated by the matching use of the rotating plate 9 and the fan blades 10, so, thereby increase radiating effect, guarantee the normal operating of the inside electrical components of switch board, increase the life of the inside electrical components of switch board, reduce the cost of maintenance of equipment, the first sealing ring 11 of the outside fixedly connected with of commentaries on classics board 9, first sealing ring 11 fixed connection is in the centre bore department of commentaries on classics board 9 keeping away from 8 one sides of apron, and the inside diameter of first sealing ring 11 and the centre bore diameter adaptation of commentaries on classics board 9, and 1 sliding connection of first sealing ring 11 and the cabinet body.
The air outlet 12 is arranged outside the rotating plate 9, the air outlets 12 are uniformly distributed on the side surface of the rotating plate 9, the number of the air outlets 12 is no less than twenty-six, the sealing plate 13 is slidably connected inside the air outlet 12, the outer diameter of the sealing plate 13 is matched with the inner diameter of the air outlet 12, the number of the sealing plate 13 is equal to that of the air outlets 12, the dust blocking plate 2, the air outlet 12 and the sealing plate 13 are matched for use, so that the dust blocking effect is achieved, dust is prevented from being accumulated inside the power distribution cabinet, the normal use and the heat dissipation effect of electrical components inside the power distribution cabinet are further influenced, the service life of the electrical components inside the power distribution cabinet is reduced, the maintenance cost and the replacement cost of muscle increasing equipment are reduced, the sealing plate 13 is opened when rotating, the air outlet 12 is blocked when not rotating, automatic control is realized, the entering of dust is further reduced, the slide bars 14 are connected inside the air outlet 12 in a sliding manner, the slide bars 14 are provided with multiple groups, the number of the groups of the slide bars 14 is the same as the number of the air outlet 12, each group of the slide bars 14 is at least four, the outer part of the sealing plate 13 is fixedly connected with springs 15, the springs 15 are fixedly connected inside the air outlet 12, and the number of the springs 15 is equal to the number of the air outlet 12.
The surface of the motor base 6 is provided with an annular groove 16, the inside of the annular groove 16 is slidably connected with a second sealing ring 17, the second sealing ring 17 is fixedly connected with a cover plate 8, the annular groove is used by matching a first sealing ring 11 with the second sealing ring 17, the effect of preventing dust and moisture from entering is further achieved, meanwhile, the stability of the rotating plate 9 and the fan blade 10 during rotation is also ensured, the outside of the motor shaft 7 is fixedly connected with a bearing 18, the outside of the bearing 18 is fixedly connected with a bearing seat 19, the outside of the bearing seat 19 is fixedly connected with a stator rotating group 20, the inside of the cover plate 8 is fixedly connected with a permanent magnet 21, the outside of the cabinet body 1 is fixedly connected with a rain shielding plate 22, the rain shielding plate 22 covers the outer side of the dust shielding plate 2, the inside of the cabinet body 1 is fixedly connected with a temperature controller 23, the temperature controller 23 is electrically connected with the stator, thereby reach, change board 9 and flabellum 10 and rotate when the high temperature, increase the inside air flow effect of switch board, increase the radiating effect, when the temperature is low, change board 9 and flabellum 10 stall, both resources are saved also makes air outlet 12 seal, prevents that the dust from getting into.
The temperature controller 23 includes a housing 231, a fixed contact 232 fixedly connected to the inside of the housing 231, a movable contact 233 slidably connected to the inside of the housing 231, a plunger 234 fixedly connected to the outside of the movable contact 233, and a sleeve 235 slidably connected to the inside of the plunger 234, wherein the sleeve 235 is filled with an inert gas.
Air is supplied to the axis of the heat dissipation device and is radially discharged all around, the gas flow range of the power distribution cabinet is increased, and gas interference is reduced, so that the heat dissipation effect is improved, gas flows out from the diameter direction of the rotating plate 9, the axial length of the heat dissipation device is reduced, the occupied internal space of the power distribution cabinet is reduced, and the utilization rate of the internal space of the power distribution cabinet is increased.
Referring to the working process and principle of fig. 6-8, in operation, when the temperature in the cabinet body 1 of the power distribution cabinet rises, because the gas inside the sleeve 235 is heated and expanded, the gas inside the sleeve 235 pushes the plunger 234 to move to the left, and because the plunger 234 is fixedly connected with the movable contact block 233, the movable contact block 233 is slidably connected with the inside of the shell 231, the inside of the shell 231 is fixedly connected with the fixed contact block 232, the plunger 234 pushes the movable contact block 233 to move to the left, the movable contact block 233 is contacted with the fixed contact block 232, the power supply of the stator rotating group 20 is switched on to drive the rotating plate 9 to rotate, the rotating plate 9 is fixedly connected with the fan blades 10, the rotating plate 9 drives the fan blades 10 to rotate, meanwhile, because the rotating plate 9 rotates, the centrifugal force is generated at the sealing plate 13, under the action of the centrifugal force, the sealing plate 13 slides outwards along the air outlet 12, and the gas, and enter the inside of the cabinet 1 through the air outlet 12 and the air outlet 5, when the temperature in the inside of the cabinet 1 is lower, the air in the sleeve 235 contracts and generates negative pressure, the absorption plunger 234 moves rightwards, the movable contact block 233 and the fixed contact block 232 are separated from contact, the stator rotating group 20 is powered off, the rotating plate 9 and the fan blade 10 stop rotating, meanwhile, because the sealing plate 13 is fixedly connected with the spring 15, the spring 15 is fixedly connected in the air outlet 12, the sealing plate 13 slides towards the inside of the air outlet 12 under the action of the spring 15, the air outlet 12 is blocked, and the dust is prevented from entering.
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 (1)
1. The utility model provides a switch board heat abstractor based on centrifugation principle, includes the cabinet body (1), its characterized in that: the dust guard plate is fixedly connected to the inside of the cabinet body (1), an air inlet hole (3) is formed in the dust guard plate (2), a fan cover (4) is fixedly connected to the inside of the cabinet body (1), an air outlet hole (5) is formed in the surface of the fan cover (4), a motor base (6) is fixedly connected to the inside of the air outlet hole (5), a motor shaft (7) is movably connected to the inside of the fan cover (4), a cover plate (8) is fixedly connected to the outside of the motor shaft (7), a rotating plate (9) is fixedly connected to the outside of the cover plate (8), fan blades (10) are fixedly connected to the inside of the rotating plate (9), a first sealing ring (11) is fixedly connected to the outside of the rotating plate (9), an air outlet (12) is formed in the outside of the rotating plate (9), and a sealing plate (13) is slidably connected to the inside of the air, a sliding rod (14) is fixedly connected to the outer portion of the sealing plate (13), a spring (15) is fixedly connected to the outer portion of the sealing plate (13), an annular groove (16) is formed in the surface of the motor base (6), a second sealing ring (17) is slidably connected to the inner portion of the annular groove (16), a bearing (18) is fixedly connected to the outer portion of the motor shaft (7), a bearing seat (19) is fixedly connected to the outer portion of the bearing (18), a stator rotating group (20) is fixedly connected to the outer portion of the bearing seat (19), a permanent magnet (21) is fixedly connected to the inner portion of the cover plate (8), a rain shielding plate (22) is fixedly connected to the outer portion of the cabinet body (1), and a temperature controller (23) is fixedly connected to;
the temperature controller (23) comprises a shell (231), a fixed contact block (232) is fixedly connected to the inside of the shell (231), a movable contact block (233) is connected to the inside of the shell (231) in a sliding manner, a plunger (234) is fixedly connected to the outside of the movable contact block (233), and a sleeve (235) is connected to the inside of the plunger (234) in a sliding manner;
the fan cover (4) is fixedly connected inside the cabinet body (1), and uniform air outlet holes (5) are formed in the surface of the fan cover (4);
the rotating plate (9) is in an annular column shape, the fan blades (10) are fixedly connected inside the rotating plate (9), the center of the rotating plate (9) is provided with a hole, and the center hole at one end of the rotating plate is fixedly connected with the cover plate (8);
the first sealing ring (11) is fixedly connected to a central hole on one side, far away from the cover plate (8), of the rotating plate (9), the inner diameter of the first sealing ring (11) is matched with the diameter of the central hole of the rotating plate (9), and the first sealing ring (11) is connected with the cabinet body (1) in a sliding mode;
the air outlets (12) are uniformly distributed on the side surface of the rotating plate (9), and the number of the air outlets (12) is not less than twenty-six;
the outer diameter of the sealing plates (13) is matched with the inner diameter of the air outlet (12), and the number of the sealing plates (13) is equal to that of the air outlet (12);
the sliding rods (14) are connected inside the air outlet (12) in a sliding manner, a plurality of groups of the sliding rods (14) are provided, the number of the groups of the sliding rods (14) is the same as that of the air outlet (12), and at least four sliding rods (14) are provided in each group;
the temperature controller (23) is electrically connected with the stator rotating group (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226667.2A CN110707572B (en) | 2019-12-04 | 2019-12-04 | Power distribution cabinet heat dissipation device based on centrifugal principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226667.2A CN110707572B (en) | 2019-12-04 | 2019-12-04 | Power distribution cabinet heat dissipation device based on centrifugal principle |
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| Publication Number | Publication Date |
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| CN110707572A CN110707572A (en) | 2020-01-17 |
| CN110707572B true CN110707572B (en) | 2020-12-11 |
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| CN201911226667.2A Expired - Fee Related CN110707572B (en) | 2019-12-04 | 2019-12-04 | Power distribution cabinet heat dissipation device based on centrifugal principle |
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| CN112467533B (en) * | 2020-11-12 | 2022-09-06 | 湖南辰昊电力科技有限公司 | Power distribution cabinet capable of overcurrent power-off and resetting automatically |
| CN112918265A (en) * | 2021-03-18 | 2021-06-08 | 临沂职业学院 | Braking device with electrical redundancy control function and using method thereof |
| CN113684325A (en) * | 2021-09-17 | 2021-11-23 | 东莞市天富励德实业有限公司 | Leather product processing and punching device |
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| CN207801192U (en) * | 2018-01-17 | 2018-08-31 | 杭州丰安电力建设有限公司 | Aeration type power distribution cabinet |
| CN110536595A (en) * | 2019-07-17 | 2019-12-03 | 武汉捷威特机房工程有限公司 | A kind of certainly cooling shield machine cabinet dust guard |
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| CN101170266A (en) * | 2006-10-23 | 2008-04-30 | 梁昌勇 | External rotor car permanent magneto |
| JP2015089214A (en) * | 2013-10-30 | 2015-05-07 | ユニキャリア株式会社 | Pre-cleaner attachment of control panel |
| CN207297415U (en) * | 2017-08-16 | 2018-05-01 | 深圳市高昱电子科技有限公司 | A kind of fan structure |
| CN108249017B (en) * | 2018-01-26 | 2019-05-28 | 重庆云新包装有限公司 | A kind of transport case |
| CN207967650U (en) * | 2018-03-12 | 2018-10-12 | 北京永兴源工贸有限责任公司 | Power distribution cabinet with ventilation heat abstractor |
| CN109798621A (en) * | 2019-01-07 | 2019-05-24 | 浙江琦远科技有限公司 | A kind of small-sized new blower of energy Fast Installation |
| CN209704687U (en) * | 2019-02-19 | 2019-11-29 | 苏州天邦世纪汽车配件有限公司 | A kind of flank heat dissipation silicon oil filled fan clutch |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207801192U (en) * | 2018-01-17 | 2018-08-31 | 杭州丰安电力建设有限公司 | Aeration type power distribution cabinet |
| CN110536595A (en) * | 2019-07-17 | 2019-12-03 | 武汉捷威特机房工程有限公司 | A kind of certainly cooling shield machine cabinet dust guard |
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