CN107968339A - A kind of transformer equipment heat dissipating method - Google Patents

A kind of transformer equipment heat dissipating method Download PDF

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Publication number
CN107968339A
CN107968339A CN201711240894.1A CN201711240894A CN107968339A CN 107968339 A CN107968339 A CN 107968339A CN 201711240894 A CN201711240894 A CN 201711240894A CN 107968339 A CN107968339 A CN 107968339A
Authority
CN
China
Prior art keywords
sliding shoe
top plate
blade
magnetic substance
dustproof sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711240894.1A
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Chinese (zh)
Inventor
邱红光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Eaton Electric Power Technology Co Ltd
Original Assignee
Ningbo Eaton Electric Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Eaton Electric Power Technology Co Ltd filed Critical Ningbo Eaton Electric Power Technology Co Ltd
Priority to CN201711240894.1A priority Critical patent/CN107968339A/en
Publication of CN107968339A publication Critical patent/CN107968339A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets

Abstract

The invention discloses a kind of transformer equipment heat dissipating method, this method comprises the following steps:Step 1:Dustproof sheet is opened;Step 2:Radiator fan starts, and the rotating speed of radiator fan is 1500 2500r/min;Blade outer end is slidably connected sliding shoe, sliding shoe can slide in and out under the action of the centrifugal force after blade rotation, the slip of sliding shoe necessarily drives and is moved outside the second magnetic substance, air bag and top plate, and dustproof sheet can also move outside, is moved outside small end, and connecting rod lower end is then moved backward so as to drive the button handle of slide switch to move, after temperature is fallen, balloon contraction control knob handle reverse movement, so as to reduce radiating fan rotation speed, and so on, automatic adjustment is realized.The present invention can solve the problems, such as that existing box-type substation radiating efficiency is low.

Description

A kind of transformer equipment heat dissipating method
Technical field
The present invention relates to substation's technical field of heat dissipation, and in particular to a kind of transformer equipment heat dissipating method.
Background technology
More high and low voltage electric distribution equipment is generally equipped with inside box-type substation, these controller switching equipment caloric values are huge, therefore Box-type substation must have very strong heat-sinking capability, while have preferable barrier propterty, prevent toy etc. from entering.
In order to meet the requirement of box-type substation waterproof, anti-foreign matter, the shell mechanism of box-type substation is more in the prior art For sealed design, heat dissipation performance is excessively poor, or flat radiator window is furnished with the shell of box-type substation, but due to tablet The fault of construction of formula radiator window in itself, water proofing property is poor, easily intakes when running into extreme rainy weather, in addition box-type substation Easily there is a situation where blocked by dust for radiator window after a period of time is run.
The content of the invention
It is an object of the invention to provide a kind of box-type substation of periphery heat dissipation, dissipated with solving existing box-type substation The problem of thermal efficiency is low.
The base case of the present invention:Transformer equipment heat dissipating method is, it is necessary to by a kind of substation's radiator, the device Including rack, the heat emission hole being arranged in rack is further included, radiator fan is disposed with heat emission hole vertically and is used for The dustproof sheet of heat emission hole work area is adjusted, shaft that wherein radiator fan includes being rotatably arranged in rack, fix with shaft The blade of connection, the sliding shoe for being slideably positioned in blade outer end, sliding shoe is inner to be provided with tension spring between blade, outside sliding shoe End is fixed with the first magnetic substance;Slided in heat dissipation outer wall of hole and be provided with the second magnetic substance, top plate is further fixed on the second magnetic substance, Air bag, the second magnetic substance and the first magnetic substance are further fixed between top plate and the second magnetic substance to be mutually exclusive, top plate is with preventing Dirt piece is fixed;Further include the connecting rod that middle part is hinged in rack, the contiguous block and control radiator fan that are fixed on top plate outer end The slide switch of rotating speed, contiguous block are equipped with the first bar-shaped trough, the second bar-shaped trough, connecting rod are correspondingly provided with the button handle of slide switch The first bar-shaped trough is inserted into upper end, and the second bar-shaped trough is inserted into connecting rod lower end;Shaft is hollow, and the one end of shaft away from blade is fixed Grooved cam is provided with, cylinder body is provided with rack, piston plate is slidably connected in cylinder body, is fixed with piston plate convex with groove profile The mandril that wheel working face offsets, is additionally provided with resetting spring between piston plate and cylinder body, cylinder body is equipped with air outlet pipe away from shaft one end, The air outlet pipe other end is connected in shaft cavity, and breather check valve and outgassing nonreturn valve, air outlet pipe and outlet are provided with cylinder body Check valve connects;This method comprises the following steps:Step 1:Dustproof sheet is opened;Step 2:Radiator fan starts, radiator fan Rotating speed is 1500-2500r/min;Blade outer end is slidably connected sliding shoe, and sliding shoe can act on after blade rotation in centrifugal force Under slide in and out, the slip of sliding shoe necessarily drives and is moved outside the second magnetic substance, air bag and top plate, and dustproof sheet also can be outside Move, moved outside small end, and connecting rod lower end is then moved backward so as to drive the button handle of slide switch to move, after temperature is fallen, Balloon contraction control knob handle moves backward, so as to reduce radiating fan rotation speed, and so on, realizes automatic adjustment.
Wherein the distance between contiguous block and connecting rod hinge point are far smaller than the distance between button handle and connecting rod hinge point.
The principle of the present invention is:
The setting of heat emission hole is beneficial to the heat dissipation of box-type substation, and the setting of dustproof sheet can be avoided in radiator fan not work Heat emission hole is blocked by dust when making or heat emission hole is entered by toy, and the setting of blade can increase the work of radiator fan Area, improves radiating efficiency, and blade outer end is slidably connected sliding shoe, sliding shoe can after blade rotation under the action of the centrifugal force to It is outer to slide so as to increase the work area of blade or even radiator fan, and the second magnetic substance is mutually exclusive with the first magnetic substance , the slip of sliding shoe necessarily drives to move outside the second magnetic substance, air bag and top plate, and dustproof sheet can also move outside, connect Block is equipped with the first bar-shaped trough and contiguous block is fixed on top plate, therefore is moved outside small end, and connecting rod lower end then moves backward So as to drive the button handle of slide switch to move;In shaft rotation process, grooved cam forms cam ejection pin mechanism with mandril, multiple Position spring cooperation under, piston plate reciprocatingly slides, thus do not stopped by shaft to transformer equipment inside air is being supplied to, rise To the effect of auxiliary heat dissipation.
Compared with prior art, the advantage of the invention is that:
1st, the radiator fan in the present invention can be unfolded at work, so as to increase work area, improve radiating efficiency.
2nd, can be incited somebody to action when the radiator fan in the present invention is unfolded by the repulsive force between the first magnetic substance, the second magnetic substance Dustproof sheet is unfolded, so as to obtain the heat dissipation area or heat exchange area of bigger.
3rd, the air bag in the present invention can be used in detecting the temperature in substation, when temperature is excessive, air bag rapid expanding And drive and moved outside small end, so as to drive button handle mobile by connecting rod to tune up radiating fan rotation speed.
4th, the distance between the contiguous block in the present invention and connecting rod hinge point are far smaller than between button handle and connecting rod hinge point Distance, and then the structure of laborsaving lever is formd, when less deformation occurs for air bag, you can realize button handle relatively large distance It is mobile, so as to play the enlarge-effect to air bag deformation quantity.
5th, mutually linkage effect between all parts in the present invention, can solve existing box-type substation radiating efficiency The problem of low.
Further, the dustproof sheet in step 2 is circumferentially provided in heat dissipation outer wall of hole and quantity is equal with top plate, each top Plate corresponds to a dustproof sheet;Dustproof sheet may be configured as tripper with heat dissipation outer wall of hole, and folding region is all the time in center.
Further, the compression spring that can be offseted with small end is additionally provided with the rack in step 2;Being arranged such can be beneficial in fact The Rapid reset of existing connecting rod.
Further, the side wall of the air bag in step 2 is corrugated;It is arranged such the expansion for being more favorable for air bag and receipts Contracting, is maintaining air bag with that can also reduce friction between the two while heat dissipation outer wall of hole sliding relation.
Further, connected between the top plate and dustproof sheet in step 2 by fixed link;Being arranged such being capable of convenient and efficient reality Now connection between the two is fixed.
Further, at least two tension springs are set on each blade in step 2;It is arranged such and enables to sliding shoe stress Uniformly, beneficial to the stationarity for keeping sliding shoe movement.
Brief description of the drawings
Fig. 1 is the structure diagram of substation's radiator in the embodiment of the present invention;
Fig. 2 is the link mechanism schematic diagram in Fig. 1;
Fig. 3 is the structure diagram of substation's radiator dustproof sheet in the embodiment of the present invention;
Fig. 4 is the structure diagram of shaft in the embodiment of the present invention.
Embodiment
Below by the further details of explanation of embodiment:
Reference numeral in Figure of description includes:Heat dissipation outer wall of hole 10, the second magnetic substance 11, air bag 12, jacking block 13, company Connect block 14, compression spring 15, slide switch 16, fixed link 17, dustproof sheet 18, blade 20, sliding shoe 21, the first magnetic substance 22, tension spring 23rd, air outlet pipe 30, mandril 31, grooved cam 32, shaft 33.
Embodiment:
Substantially as shown in Figure 1, substation's radiator, including rack, further include the heat emission hole being arranged in rack, dissipate Radiator fan and the dustproof sheet 18 for adjusting heat emission hole work area, wherein radiation air are disposed with hot hole vertically Fan the shaft 33 for including being rotatably arranged in rack, the blade 20 being fixedly connected with shaft 33, be slideably positioned in 20 outer end of blade Sliding shoe 21, sliding shoe 21 is inner to be provided with tension spring 23 between blade 20, and 21 outer end of sliding shoe is fixed with the first magnetic substance 22;Slided in heat dissipation outer wall of hole 10 and be provided with the second magnetic substance 11, top plate, top plate and second are further fixed on the second magnetic substance 11 Be further fixed on air bag 12 between magnetic substance 11, the second magnetic substance 11 and the first magnetic substance 22 be it is mutually exclusive, top plate with it is dust-proof Piece 18 is fixed;As shown in Fig. 2, further include middle part be hinged in rack connecting rod, be fixed on top plate outer end contiguous block 14 and The slide switch 16 of radiating fan rotation speed is controlled, contiguous block 14 is equipped with the first bar-shaped trough, is corresponded on the button handle of slide switch 16 Equipped with the second bar-shaped trough, small end is inserted into the first bar-shaped trough, and the second bar-shaped trough is inserted into connecting rod lower end.
As shown in figure 3, wherein the distance between contiguous block 14 and connecting rod hinge point are far smaller than button handle and connecting rod hinge point The distance between.Dustproof sheet 18 is circumferentially provided in heat dissipation outer wall of hole 10 and quantity is equal with top plate, each top plate corresponds to one A dustproof sheet 18;Dustproof sheet 18 may be configured as tripper with heat dissipation outer wall of hole 10, and folding region is all the time in center.Rack On be additionally provided with the compression spring 15 that can be offseted with small end;It is arranged such the Rapid reset that can be beneficial to realize connecting rod.Air bag 12 Side wall is corrugated;The expansion and contraction for being more favorable for air bag 12 are arranged such, is maintaining air bag 12 and heat dissipation outer wall of hole 10 Friction between the two can also be reduced while sliding relation.As shown in figure 4, pass through fixed link between top plate and dustproof sheet 18 17 connections;Being arranged such convenient and efficient can realize that connection between the two is fixed.Each blade 20 is equipped with two tension springs 23; It is arranged such and enables to 21 uniform force of sliding shoe, beneficial to the stationarity for keeping sliding shoe 21 to move.Shaft 33 to be hollow, The one end of shaft 33 away from blade 20 is fixedly installed grooved cam 32, and cylinder body is provided with rack, is slidably connected in cylinder body Piston plate, is fixed with the mandril 31 to offset with 32 working face of grooved cam on piston plate, mandril working end is provided with roller;Piston Resetting spring is additionally provided between plate and cylinder body, cylinder body is equipped with air outlet pipe 30, the connection of 30 other end of air outlet pipe away from 33 one end of shaft Into 33 cavity of shaft, breather check valve and outgassing nonreturn valve are provided with cylinder body, air outlet pipe 30 is connected with outgassing nonreturn valve.
The principle of the present invention is:
The setting of heat emission hole is beneficial to the heat dissipation of box-type substation, and the setting of dustproof sheet 18 can be avoided in radiator fan not Heat emission hole is blocked by dust during work or heat emission hole is entered by toy, and the setting of blade 20 can increase radiator fan Work area, improves radiating efficiency, and 20 outer end of blade is slidably connected sliding shoe 21, sliding shoe 21 can after the rotation of blade 20 from Slid in and out under mental power function so as to increase the work area of blade 20 or even radiator fan, and the second magnetic substance 11 and the first magnetic Property body 22 to be mutually exclusive, the slip of sliding shoe 21 necessarily drives to move outside the second magnetic substance 11, air bag 12 and top plate, dust-proof Piece 18 can also move outside, and contiguous block 14 is equipped with the first bar-shaped trough and contiguous block 14 is fixed on top plate, therefore on connecting rod End is outer to be moved, and connecting rod lower end is then moved backward so as to drive the button handle of slide switch 16 to move;In 33 rotation process of shaft, groove profile Cam 32 forms 31 mechanism of cam follower with mandril 31, and under the cooperation of resetting spring, piston plate reciprocatingly slides, so as to pass through Shaft 33 does not stop that air is being supplied to play the role of auxiliary heat dissipation to transformer equipment inside.
Compared with prior art, the advantage of the invention is that:
1st, the radiator fan in the present invention can be unfolded at work, so as to increase work area, improve radiating efficiency.
2nd, the repulsion between the first magnetic substance 22, the second magnetic substance 11 can be passed through when the radiator fan in the present invention is unfolded Dustproof sheet 18 is unfolded power, so as to obtain the heat dissipation area or heat exchange area of bigger.
3rd, the air bag 12 in the present invention can be used in detecting the temperature in substation, and when temperature is excessive, air bag 12 is quick Expand and drive and moved outside small end, so as to drive button handle mobile by connecting rod to tune up radiating fan rotation speed.
4th, the distance between contiguous block 14 and connecting rod hinge point in the present invention be far smaller than button handle and connecting rod hinge point it Between distance, and then the structure of laborsaving lever is formd, when less deformation occurs for air bag 12, you can realize button handle it is larger away from From movement, so as to play the enlarge-effect to 12 deformation quantity of air bag.
5th, mutually linkage effect between all parts in the present invention, can solve existing box-type substation radiating efficiency The problem of low.
Transformer equipment heat dissipating method is, it is necessary to by above-mentioned substation's radiator, and this method comprises the following steps:Step 1:Dustproof sheet is opened;Step 2:Radiator fan starts, and the rotating speed of radiator fan is 1500-2500r/min;Blade outer end, which slides, to be connected Sliding shoe is connect, sliding shoe can slide in and out under the action of the centrifugal force after blade rotation, and the slip of sliding shoe necessarily drives second Moved outside magnetic substance, air bag and top plate, dustproof sheet can also move outside, be moved outside small end, and connecting rod lower end is then reversely moved Move so as to drive the button handle of slide switch to move, after temperature is fallen, balloon contraction control knob handle reverse movement, so as to reduce scattered Hot-air fan rotating speed, and so on, realizes automatic adjustment.

Claims (6)

  1. A kind of 1. transformer equipment heat dissipating method, it is characterised in that:Need to include by a kind of substation's radiator, the device Rack, further includes the heat emission hole being arranged in rack, is disposed with radiator fan in heat emission hole vertically and for adjusting Shaft that the dustproof sheet of heat emission hole work area, wherein radiator fan include being rotatably arranged in rack, be fixedly connected with shaft Blade, be slideably positioned in the sliding shoe of blade outer end, sliding shoe is inner to be provided with tension spring between blade, and sliding shoe outer end is consolidated Surely there is the first magnetic substance;Slided in heat dissipation outer wall of hole and be provided with the second magnetic substance, top plate, top plate are further fixed on the second magnetic substance Air bag is further fixed between the second magnetic substance, the second magnetic substance and the first magnetic substance are mutually exclusive, top plate and dustproof sheet It is fixed;Further include the connecting rod that middle part is hinged in rack, the contiguous block and control radiating fan rotation speed that are fixed on top plate outer end Slide switch, contiguous block is equipped with the first bar-shaped trough, the second bar-shaped trough, small end is correspondingly provided with the button handle of slide switch The first bar-shaped trough is inserted into, the second bar-shaped trough is inserted into connecting rod lower end;Shaft is hollow, one end fixed setting of the shaft away from blade There is grooved cam, cylinder body is provided with rack, piston plate is slidably connected in cylinder body, be fixed with piston plate and grooved cam work The mandril to offset as face, is additionally provided with resetting spring between piston plate and cylinder body, cylinder body is equipped with air outlet pipe, outlet away from shaft one end The pipe other end is connected in shaft cavity, and breather check valve and outgassing nonreturn valve are provided with cylinder body, and air outlet pipe is unidirectional with outlet Valve connects;
    This method comprises the following steps:
    Step 1:Dustproof sheet is opened;
    Step 2:Radiator fan starts, and the rotating speed of radiator fan is 1500-2500r/min;Blade outer end is slidably connected sliding shoe, Sliding shoe can slide in and out under the action of the centrifugal force after blade rotation, and the slip of sliding shoe necessarily drives the second magnetic substance, gas Moved outside capsule and top plate, dustproof sheet can also move outside, be moved outside small end, and connecting rod lower end is then moved backward so as to drive The button handle movement of slide switch, after temperature is fallen, balloon contraction control knob handle reverse movement, turns so as to reduce radiator fan Speed, and so on, realizes automatic adjustment.
  2. 2. transformer equipment heat dissipating method according to claim 1, it is characterised in that:Dustproof sheet in step 2 is circumferentially set Put in heat dissipation outer wall of hole and quantity is equal with top plate, each top plate corresponds to a dustproof sheet.
  3. 3. transformer equipment heat dissipating method according to claim 2, it is characterised in that:It is additionally provided with rack in step 2 The compression spring that can be offseted with small end.
  4. 4. transformer equipment heat dissipating method according to claim 3, it is characterised in that:The side wall of air bag in step 2 is in Corrugated.
  5. 5. transformer equipment heat dissipating method according to claim 4, it is characterised in that:Top plate and dustproof sheet in step 2 Between connected by fixed link.
  6. 6. transformer equipment heat dissipating method according to claim 5, it is characterised in that:Set on each blade in step 2 Put at least two tension springs.
CN201711240894.1A 2017-11-30 2017-11-30 A kind of transformer equipment heat dissipating method Pending CN107968339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711240894.1A CN107968339A (en) 2017-11-30 2017-11-30 A kind of transformer equipment heat dissipating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711240894.1A CN107968339A (en) 2017-11-30 2017-11-30 A kind of transformer equipment heat dissipating method

Publications (1)

Publication Number Publication Date
CN107968339A true CN107968339A (en) 2018-04-27

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Country Status (1)

Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110518475A (en) * 2019-08-29 2019-11-29 绍兴迪艾仕机械设计有限公司 A kind of damp-proof device suitable for plum rain season distribution box
CN112968359A (en) * 2021-02-03 2021-06-15 山东大学 Dust collection insulation structure of distribution box
CN113041748A (en) * 2021-03-03 2021-06-29 汤极全 Environment-friendly dust removal method for electromechanical equipment
CN114222451A (en) * 2021-10-18 2022-03-22 中国人民解放军国防科技大学 Heat dissipation and electromagnetic interference prevention device for network equipment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761980A1 (en) * 1995-08-31 1997-03-12 AT&T Corp. Fan having blades with flanges
US20070092376A1 (en) * 2005-10-26 2007-04-26 Malone Christopher G Electronics cooling fan with collapsible fan blade
CN201301832Y (en) * 2008-11-18 2009-09-02 林帅 Two-purpose electric fan
EP2453138A2 (en) * 2010-11-14 2012-05-16 ebm-papst St. Georgen GmbH & Co. KG Diagonal ventilator
CN202811510U (en) * 2012-07-31 2013-03-20 撼讯科技股份有限公司 Extension type fan blade structure
CN204267366U (en) * 2014-11-15 2015-04-15 温岭市灵其防爆机电有限公司 A kind of flexible controlled flabellum
CN107302301A (en) * 2017-08-18 2017-10-27 重庆路格科技有限公司 The device of controlling switch power module radiating
CN107394640A (en) * 2017-09-15 2017-11-24 宁波博恩电气有限公司 The radiating adjusting method of distribution box

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0761980A1 (en) * 1995-08-31 1997-03-12 AT&T Corp. Fan having blades with flanges
US20070092376A1 (en) * 2005-10-26 2007-04-26 Malone Christopher G Electronics cooling fan with collapsible fan blade
CN201301832Y (en) * 2008-11-18 2009-09-02 林帅 Two-purpose electric fan
EP2453138A2 (en) * 2010-11-14 2012-05-16 ebm-papst St. Georgen GmbH & Co. KG Diagonal ventilator
CN202811510U (en) * 2012-07-31 2013-03-20 撼讯科技股份有限公司 Extension type fan blade structure
CN204267366U (en) * 2014-11-15 2015-04-15 温岭市灵其防爆机电有限公司 A kind of flexible controlled flabellum
CN107302301A (en) * 2017-08-18 2017-10-27 重庆路格科技有限公司 The device of controlling switch power module radiating
CN107394640A (en) * 2017-09-15 2017-11-24 宁波博恩电气有限公司 The radiating adjusting method of distribution box

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110518475A (en) * 2019-08-29 2019-11-29 绍兴迪艾仕机械设计有限公司 A kind of damp-proof device suitable for plum rain season distribution box
CN112968359A (en) * 2021-02-03 2021-06-15 山东大学 Dust collection insulation structure of distribution box
CN112968359B (en) * 2021-02-03 2021-12-28 山东大学 Dust collection insulation structure of distribution box
CN113041748A (en) * 2021-03-03 2021-06-29 汤极全 Environment-friendly dust removal method for electromechanical equipment
CN114222451A (en) * 2021-10-18 2022-03-22 中国人民解放军国防科技大学 Heat dissipation and electromagnetic interference prevention device for network equipment
CN114222451B (en) * 2021-10-18 2022-10-21 中国人民解放军国防科技大学 Heat dissipation and electromagnetic interference prevention device for network equipment

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Application publication date: 20180427

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