CN108054005A - Capacitor heat dissipating method - Google Patents

Capacitor heat dissipating method Download PDF

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Publication number
CN108054005A
CN108054005A CN201711240727.7A CN201711240727A CN108054005A CN 108054005 A CN108054005 A CN 108054005A CN 201711240727 A CN201711240727 A CN 201711240727A CN 108054005 A CN108054005 A CN 108054005A
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China
Prior art keywords
air
capacitor
sliding block
pressure
fixed
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CN201711240727.7A
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CN108054005B (en
Inventor
陈亮
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Ningbo Bo'en Electric Co Ltd
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Ningbo Bo'en Electric Co Ltd
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Priority to CN201711240727.7A priority Critical patent/CN108054005B/en
Publication of CN108054005A publication Critical patent/CN108054005A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02Mountings
    • H01G2/06Mountings specially adapted for mounting on a printed-circuit support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/08Cooling arrangements; Heating arrangements; Ventilating arrangements

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The present invention relates to capacitor technical field of heat dissipation, disclose a kind of capacitor heat dissipating method, are radiated by following steps to capacitor:Step 1:Capacitor is installed in groove, is fixed;Step 2:By the middle spiral winding of air hose on the capacitor, and wind at intervals of 2~5cm;Step 3:Booster air pump, is 400~500r/min by the rotational speed regulation of air pump, and air pump is passed through 2~3min of gas to high-pressure gas box.The present invention persistently can cool down to capacitor in a manner of intermittent, and can also be to capacitor dedusting.

Description

Capacitor heat dissipating method
Technical field
The present invention relates to capacitor technical field of heat dissipation, and in particular to a kind of capacitor heat dissipating method.
Background technology
Capacitor, usually referred to as it accommodates the ability of charge as capacitance, is represented with letter C, and capacitor is dress as its name suggests The container of capacitance accommodates the device of charge.One of electronic component largely used in electronic equipment during capacitance gas, extensive use The separated by direct communication in circuit couples, and bypasses, filtering, resonant tank, energy conversion and control etc..
With the development of science and technology, the required power of circuit gradually increases, and the power of capacitor also increases therewith.Big work( The capacitor of rate will necessarily generate substantial amounts of heat, and substantial amounts of heat can cause capacitor internal and external deformation, such as:Shell expands Or oil leak, therefore, need to carry out the heat dissipation of capacitor during the use of capacitor.Meanwhile capacitor is at work, can produce Raw substantial amounts of electrostatic, and electrostatic easily adsorbs dust.Substantial amounts of dust accretions on the capacitor, will necessarily influence dissipating for capacitor Thermal effect, some dusts are also possible to directly affect capacitor function, and therefore, capacitor needs dedusting.
And existing capacitor generally all only carries out dedusting, the mode of dedusting gives capacitor one cover body, by capacitor cover Firmly, so as to reduce dust adsorption to capacitor, dust can actually be reduced by this kind of mode, but, since cover body is One closing, big calorimetric caused by capacitor work can not shed, and still can influence the function of capacitor.Therefore, it is anxious A kind of capacitor heat dissipating method is needed, to solve the problems, such as that capacitor heat dissipation effect is bad.
The content of the invention
It is an object of the invention to provide a kind of capacitor heat dissipating methods, and to solve, capacitor heat dissipation effect is bad to ask Topic.
In order to achieve the above objectives, the technical scheme is that:A kind of capacitor heat dissipating method, is dissipated using a kind of capacitor Thermal, including pedestal and fixed seat, the fixed seating is located at chassis outer side, and the pedestal is slidably connected with fixed seat, bottom Seat is equipped with groove, and bottom portion of groove is equipped with thermally conductive sheet, and pedestal is equipped with several and is located at air bag below groove, be equipped in air bag and The cooling fin of thermally conductive sheet connection, air cavity one side are equipped with pressure switch, the fixed seat one side be equipped with air amplifier, air pump and The high-pressure gas box connected with air pump, air pump are supplied gas to high-pressure gas box, and air amplifier includes tracheae and annular chamber, on high-pressure gas box Equipped with air-release mechanism, air-release mechanism includes air cavity, sliding block and the controllable cylinder being electrically connected above sliding block and with pressure switch, The sliding block is slidably connected with air cavity, and sliding block top is fixed with spring, and spring one end is fixedly connected with air cavity, the spring other end with Sliding block is fixedly connected, and being additionally provided with above sliding block with sliding block can be bonded and be hinged on the switch on air cavity, switch and gas Pump is electrically connected, and is additionally provided with the air flue connected with high-pressure gas box on sliding block, the controllable cylinder is fixed on air cavity and controllable cylinder Piston rod be fixedly connected with a slide block, the air cavity side wall is equipped with the first gas outlet that can be connected with air flue and the second outlet Mouthful, the first gas outlet is located above air flue, and the second gas outlet is located at air flue lower section, and the first gas outlet and the second gas outlet are and ring Shape chamber connects, and the fixed seat one side opposite with air amplifier is equipped with Venturi tube, and the pedestal is equipped with air hose, air hose One end is connected with air amplifier, and the air hose other end is connected with Venturi tube, and conduit is equipped at the trunnion of the Venturi tube;
It is radiated by following steps to capacitor:
Step 1:Capacitor is installed in groove, is fixed;
Step 2:By the middle spiral winding of air hose on the capacitor, and wind at intervals of 2~5cm;
Step 3:Booster air pump, is 400~500r/min by the rotational speed regulation of air pump, and air pump is passed through gas to high-pressure gas box 2~3min of body.
The principle of the present invention:
Step 1:Capacitor is fixed in base groove, and capacitor is consolidated, and capacitor is avoided to come off.
Step 2:One end of air hose is connected with air amplifier, and the other end of air hose leads to Venturi tube It crosses, is wound on the capacitor in the middle part of air hose, air hose is fixed.
Step 3:Booster air pump.And it is 400~500r/min by the rotational speed regulation of air pump.Air pump can be to high-pressure gas box Inside it is passed through substantial amounts of gases at high pressure, when the gases at high pressure in high-pressure gas box are passed into a certain amount, gases at high pressure can squeeze sliding block And sliding block upward sliding is promoted, the air flue of sliding block can be connected with first outlet and sliding block can be bonded support with switch.It is floating Sub switch, which is supported power, can close air pump, and air pump is caused to stop being passed through gases at high pressure to high-pressure gas box.From high-pressure gas box The gases at high pressure run out of can be entered by air flue and first outlet in annular chamber, and the gases at high pressure entered in annular chamber can enter To tracheal strips, so as to which the air-flow in gases at high pressure meeting speed line quickly flows.Endotracheal air-flow flowing can be by capacitor week The high-temperature gas enclosed is taken away, so as to cool down to capacitor.Gases at high pressure in high-pressure gas box are no enough after running out of Pressure goes to squeeze sliding block, and sliding block can reset and no longer prop up switch under the action of the spring, so as to switch again It opens air pump and is passed through gases at high pressure to high-pressure gas box, cool down by the way that more than operation principle is intermittent to capacitor.
When capacitor temperature exception, the bottom of capacitive bottom can first become most hot, so as to which thermally conductive sheet can pass heat Cooling fin is passed, so as to which cooling fin can heat the air in air bag, the air after heating can expand such that squeeze pressure Switch.Pressure switch can open controllable cylinder, and controllable cylinder promotes sliding block slide downward and causes air flue and the second gas outlet Connection.What gases at high pressure in high-pressure gas box can continue be passed through in annular chamber so that tracheal strips, which begin to form high-speed flow, to be taken away greatly The heat of amount.When the temperature of capacitor reduces, air-pocket reset, pressure switch can control controllable cylinder band movable slider to reset when resetting, Cool down so as to which high-pressure gas box continuation is intermittent to capacitor.Air hose middle spiral sets and winds on the capacitor, One end that air hose is connected with air amplifier can carry out air inlet when air amplifier works, and the gas entered can pass through wind The part that pipe middle spiral is set, the cold air in air hose can cool down to capacitor, while by the gas in the middle part of air hose It can enter in Venturi tube, the contraction section and diffuser of Venturi tube can form pressure differential, at the trunnion of Venturi tube Negative pressure can be formed, negative pressure can be siphoned away the dust near capacitor and hot gas by conduit, so as to carry out dedusting drop to capacitor Temperature, so as to complete the cooling to capacitor.
Beneficial effects of the present invention:(1) present invention, can be intermittent by the cooperation of air-release mechanism, air pump and high-pressure gas box Deflate to high-pressure gas box and capacitor cooled down, meanwhile, air pump, high-pressure gas box and air-release mechanism are always in work Make state, the capacitor of heating can be allowed to cool down always, to ensure the cooling-down effect of capacitor, so as to ensure the work(of capacitor Energy.And air pump has under the control of switch and rests, and can save kinetic energy, saves cooling cost.
(2) continued down is carried out in capacitor temperature exception by air bag, pressure switch and controllable cylinder, improves cooling Effect.
On more than base case:
Further optimize, the capacitor in step 1 is fixed on by viscose glue in groove.Capacitor is placed by viscose glue In groove, directly the pin of capacitor and the circuit board of required connection can be connected, avoid the welding of capacitor.
Further optimize, the air hose in step 2 is rubber hose.The heat conductivility of rubber hose is preferable, can be by capacitance The temperature of device is transferred in the air in air hose.
Further optimization, the Venturi tube lower section are equipped with the collecting box being fixed in fixed seat, collecting box and venturi Pipe connects.The dust of sucking is concentrated by collecting box, so as to facilitate the centralized processing of dust.
Further optimization, the controllable cylinder are fixed on by fastening bolt in fixed seat.It works in controllable cylinder When, easily occur to shake and cause the offset of controllable cylinder, controllable cylinder is fastened by fastening bolt.
Description of the drawings
Fig. 1 is capacitor radiator overall structure diagram;
Fig. 2 is air-release mechanism structure diagram.
Specific embodiment
Below by the further details of explanation of specific embodiment:
Reference numeral in Figure of description includes:Annular chamber 1, tracheae 2, air pump 3, high-pressure gas box 4, air-release mechanism 5, pressure Power switch 6, thermally conductive sheet 7, air bag 8, pedestal 9, cooling fin 10, collecting box 11, Venturi tube 12, conduit 13, air hose 14, capacitor 15th, switch 16, controllable cylinder 17, spring 18, sliding block 19.
Embodiment 1:
As shown in Figures 1 and 2, a kind of capacitor heat dissipating method, using a kind of capacitor radiator, including pedestal 9 and fixed seat, fixed seating is located at 9 outside of pedestal and pedestal 9 is slidably connected with fixed seat, and pedestal 9 can be in fixed seat Vertical sliding, so as to be convenient for changing capacitor 15.Equipped with for placing the groove of capacitor 15 in pedestal 9, bottom portion of groove is fixed There is a thermally conductive sheet 7, and pedestal 9 is from left to right set successively there are three the air bag 8 being located at below groove, is equipped with and is led in air bag 8 The cooling fin 10 that backing 7 connects, the one side of air bag 8 is equipped with the pressure switch 6 being fixed on pedestal 9.
The left side of fixed seat is equipped with air amplifier, air pump 3 and the high-pressure gas box 4 connected with air pump 3, and air pump 3 starts meeting Gases at high pressure are sent into high-pressure gas box 4.Air amplifier includes tracheae 2 and annular chamber 1, and the fixation of annular chamber 1 is set in outside tracheae 2 Week and annular chamber 1 are provided with the opening in left side, and 2 gas outlet of tracheae is also towards left side, and the air inlet of tracheae 2 is towards right side Capacitor 15.High-pressure gas box 4 to annular chamber 1 be passed through gases at high pressure when, gases at high pressure can pass through annular chamber 1 opening enter gas In pipe 2, and air-flow flow at high speed is driven in tracheae 2, the heat band that capacitor 15 can be generated so as to 2 air inlet of tracheae It walks, so as to cool down to capacitor 15.
Be provided with air-release mechanism 5 on high-pressure gas box 4, air-release mechanism 5 include air cavity, sliding block 19 and above sliding block 19 simultaneously And the controllable cylinder 17 being electrically connected with pressure switch 6, controllable cylinder 17 are fixed on by fastening bolt in fixed seat.Sliding block 19 with Air cavity is slidably connected, and 19 top of sliding block is fixed with spring 18, and 18 one end of spring is fixedly connected with air cavity, 18 other end of spring and cunning Block 19 is fixed.19 top of sliding block is additionally provided with the switch 16 that can be bonded and be hinged on sliding block 19 on air cavity, switch 16 It is electrically connected with air pump 3.Sliding block 19 is equipped with the air flue connected with high-pressure gas box 4, and controllable cylinder 17 is fixed on air cavity and can The piston rod of control cylinder 17 is fixedly connected with sliding block 19, and air cavity side wall is equipped with the first gas outlet and second that can be connected with air flue Gas outlet, the first gas outlet are located above air flue, and the second gas outlet is located at below air flue, and the first gas outlet and the second gas outlet are equal It is connected with annular chamber 1 by plastic tube.Air pump 3 is accumulated to the gas that high-pressure gas box 4 is passed through, and the gases at high pressure accumulated can squeeze Sliding block 19 is pressed, so that sliding block 19 upward sliding and causes switch 16 to be supported in air cavity, is opened so as to float It closes 16 and closes air pump 3, air pump 3 is no longer passed through gases at high pressure to high-pressure gas box 4, and air flue is connected with the first gas outlet to annular chamber 1 Interior feeding gases at high pressure.Air pump 3 is closed, and the gas in high-pressure gas box 4 is discharged from the first gas outlet and the gas in high-pressure gas box 4 Body is reduced, and the pressure in high-pressure gas box 4 reduces, and sliding block 19 can reset under the action of spring 18, so that air flue and first Gas outlet does not connect, and high-pressure gas box 4 is no longer passed through gas to annular chamber 1.Controllable cylinder 17 can under the control of pressure switch 6 to Lower promotion sliding block 19 and air flue is connected with the second gas outlet, the gases at high pressure in high-pressure gas box 4 are by air flue to annular Gases at high pressure are sent into chamber 1.
The right side of fixed seat is equipped with Venturi tube 12, and pedestal 9 is equipped with air hose 14, and one end and the air of air hose 14 are put Big device connection, 14 other end of air hose are connected with Venturi tube 12, and 14 middle spiral of air hose sets and is wrapped on capacitor 15, Venturi tube 12 includes contraction section, diffuser and the trunnion between contraction section and diffuser, is equipped at trunnion and venturi The conduit 13 that pipe 12 connects.The gas of air amplifier is entered in air hose 14 and can be sent in Venturi tube 12, so as to text The contraction section and diffuser of venturi 12 can form pressure differential, so as to form negative pressure at trunnion, so as to by being put towards air The conduit 13 of big device deflates to capacitor 15.12 lower section of Venturi tube is additionally provided with to collect the collecting box 11 of dust, receives Collect and adsorption layer is equipped in 11.
It is radiated by following steps to capacitor:
Step 1:Capacitor 15 is mounted on groove, capacitor is fixed in groove with viscose glue.
Step 2:The middle spiral of air hose 14 is wrapped on capacitor 15, and the left end of air hose 14 and air are amplified Device connects, and the right end of air hose 14 is connected with Venturi tube 12.
Step 3:Booster air pump 3, and the velocity of rotation of air pump 3 is adjusted to 450r/min, and air pump 3 is to high pressure gas Case 4 is passed through gases at high pressure.The gases at high pressure that air pump 3 is sent into are entered in high-pressure gas box 4, and the gas in high-pressure gas box 4 can carry out It accumulates and increases pressure, increasing the gas of pressure can push up sliding block 19 and squeeze spring 18, and air flue goes out with first Gas port connects and is sent into gas to annular chamber 1.Gas in annular air cavity is run out of so that tracheae 2 is interior to generate high-speed flow, height Fast air-flow takes away the high temperature of capacitor 15, and the high-speed flow of formation can also take away a part of dust.High-speed gas enter air hose In 14, air hose 14 is radiating segment close to the left end of air amplifier, and the high temperature hot gas cognition in radiating segment distributes heat to So as to become cold wind in air, in air hose 14 it is interior it is cold cool down by capacitor 15 to capacitor 15, take away the heat of part Amount.It can be entered in Venturi tube 12 by the high-speed gas at 14 middle part of air hose, it is negative so as to what is formed at 12 trunnion of Venturi tube Pressure can continue to carry out dust suction to capacitor 15 by conduit 13.The dust of sucking can be entered with the gas in Venturi tube 12 Adsorption layer in collecting box 11 carries out absorption and is collected.
When squeezing 19 upward sliding of sliding block, sliding block 19 can be formed switch 16 gases at high pressure in high-pressure gas box 4 Support, so as to which switch 16 can close air pump 3 so that air pump 3 is no longer passed through gas to high-pressure gas box 4.In high-pressure gas box 4 Gases at high pressure, which are reduced, no longer squeezes sliding block 19, and under the active force of spring 18, spring 18 can promote sliding block 19 to reset.So as to float Switch 16 can not open air pump 3 in the support of sliding block 19 to be continued to be passed through gas to high-pressure gas box 4, so intermittent to capacitance Device 15 cools down.
When capacitor 15 when the temperature is excessively high, raised place is the bottom for being equipped with pin to temperature at first.Bottom temp Temperature can be transferred to by thermally conductive sheet 7 on cooling fin 10 by abnormal rise.Since cooling fin 10 is from left to right sequentially arranged at electricity The bottom of container 15 can radiate to capacitor 15 from multiple positions, when any one cooling fin 10 imports high temperature During air bag 8, the air in air bag 8, which can be heated, to be expanded, and so as to the meeting squeeze pressure of air bag 8 switch 6, pressure switch 6 can start The piston rod of controllable cylinder 17 can promote 19 slide downward of sliding block, and the sliding block 19 of slide downward can cause air flue and the second gas outlet Continual communication, the gas in high-pressure gas box 4 can be passed through to annular chamber 1 always so that air amplifier works always, so as to electricity Container 15 cools down.Capacitor 15 can carry out air bag 8 after cooling down to be shunk, so as to which no longer squeeze pressure switchs 6.Deflation machine Structure can recover intermittent deflation, complete the cooling to capacitor.Above-described is only the preferred embodiment of the present invention, should It points out, for those skilled in the art, on the premise of present inventive concept is departed from, several deformations can also be made and changed Into these should also be considered as protection scope of the present invention, these all do not interfere with the practicality of effect and patent that the present invention is implemented Property.The technology, shape, construction part that the present invention omits description are known technology.

Claims (5)

1. a kind of capacitor heat dissipating method, which is characterized in that a kind of capacitor radiator is used, including pedestal and fixed seat, The fixed seating is located at chassis outer side, and the pedestal is slidably connected with fixed seat, and pedestal is equipped with groove, and bottom portion of groove is equipped with and leads Backing, pedestal are equipped with several air bags being located at below groove, the cooling fin being connected with thermally conductive sheet, air cavity one are equipped in air bag Side is equipped with pressure switch, and the fixed seat one side is equipped with air amplifier, air pump and the high-pressure gas box connected with air pump, air pump It supplies gas to high-pressure gas box, air amplifier includes tracheae and annular chamber, and high-pressure gas box is equipped with air-release mechanism, and air-release mechanism includes Air cavity, sliding block and the controllable cylinder being electrically connected above sliding block and with pressure switch, the sliding block are slidably connected with air cavity, sliding Block top is fixed with spring, and spring one end is fixedly connected with air cavity, and the spring other end is fixedly connected with a slide block, and is also set above sliding block Having can be bonded with sliding block and be hinged on the switch on air cavity, and switch is electrically connected with air pump, be additionally provided on sliding block and height The air flue of blow case connection, the controllable cylinder is fixed on air cavity and the piston rod of controllable cylinder is fixedly connected with a slide block, institute It states air cavity side wall and is equipped with the first gas outlet and the second gas outlet that can be connected with air flue, the first gas outlet is located above air flue, Second gas outlet is located at below air flue, and the first gas outlet is connected with the second gas outlet with annular chamber, the fixed seat and air The opposite one side of amplifier is equipped with Venturi tube, and the pedestal is equipped with air hose, and air hose one end is connected with air amplifier, air hose The other end is connected with Venturi tube, and conduit is equipped at the trunnion of the Venturi tube;
It is radiated by following steps to capacitor:
Step 1:Capacitor is installed in groove, is fixed;
Step 2:By the middle spiral winding of air hose on the capacitor, and wind at intervals of 2~5cm;
Step 3:Booster air pump, by the rotational speed regulation of air pump be 400~500r/min, air pump to high-pressure gas box be passed through gas 2~ 3min。
2. a kind of capacitor heat dissipating method according to claim 1, which is characterized in that the capacitor in step 1 passes through viscous Glue is fixed in groove.
3. a kind of capacitor heat dissipating method according to claim 2, which is characterized in that the air hose in step 2 is soft for rubber Pipe.
4. a kind of capacitor heat dissipating method according to claim 3, which is characterized in that be equipped with below the Venturi tube solid The collecting box being scheduled in fixed seat, collecting box are connected with Venturi tube.
5. a kind of capacitor heat dissipating method according to claim 1, which is characterized in that the controllable cylinder is by fastening spiral shell Bolt is fixed in fixed seat.
CN201711240727.7A 2017-11-30 2017-11-30 Capacitor heat dissipating method Active CN108054005B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201711240727.7A CN108054005B (en) 2017-11-30 2017-11-30 Capacitor heat dissipating method

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CN108054005B CN108054005B (en) 2019-03-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110136961A (en) * 2019-07-01 2019-08-16 常州华威电子有限公司 A kind of extension service life prevents the aluminium electrolutic capacitor of open circuit
CN111463010A (en) * 2020-04-08 2020-07-28 刘和平 Alternating current variable frequency capacitor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102290242B (en) * 2011-08-10 2014-09-24 联合汽车电子有限公司 Heat dispersion structure and method of thin film capacitor
CN106158361A (en) * 2016-09-14 2016-11-23 铜陵源丰电子有限责任公司 A kind of capacitor based on aerofluxus radiator structure
CN106373778A (en) * 2016-09-14 2017-02-01 铜陵源丰电子有限责任公司 Anti-explosion capacitor
CN106523172A (en) * 2016-09-13 2017-03-22 范广志 Cooling device of motorcycle cylinder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102290242B (en) * 2011-08-10 2014-09-24 联合汽车电子有限公司 Heat dispersion structure and method of thin film capacitor
CN106523172A (en) * 2016-09-13 2017-03-22 范广志 Cooling device of motorcycle cylinder
CN106158361A (en) * 2016-09-14 2016-11-23 铜陵源丰电子有限责任公司 A kind of capacitor based on aerofluxus radiator structure
CN106373778A (en) * 2016-09-14 2017-02-01 铜陵源丰电子有限责任公司 Anti-explosion capacitor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110136961A (en) * 2019-07-01 2019-08-16 常州华威电子有限公司 A kind of extension service life prevents the aluminium electrolutic capacitor of open circuit
CN110136961B (en) * 2019-07-01 2024-03-22 常州华威电子有限公司 Aluminum electrolytic capacitor capable of prolonging service life and preventing open circuit
CN111463010A (en) * 2020-04-08 2020-07-28 刘和平 Alternating current variable frequency capacitor
CN111463010B (en) * 2020-04-08 2021-10-12 义乌市昕闵日用品有限公司 Alternating current variable frequency capacitor

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