CN208861832U - A kind of high temperature resistant electrolytic capacitor - Google Patents
A kind of high temperature resistant electrolytic capacitor Download PDFInfo
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- CN208861832U CN208861832U CN201821828539.6U CN201821828539U CN208861832U CN 208861832 U CN208861832 U CN 208861832U CN 201821828539 U CN201821828539 U CN 201821828539U CN 208861832 U CN208861832 U CN 208861832U
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- heat
- high temperature
- temperature resistant
- electrolytic capacitor
- aluminum hull
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Abstract
The utility model discloses a kind of high temperature resistant electrolytic capacitors, including aluminum hull, the capacitor core being arranged in aluminum hull and the casing being nested on the outside of aluminum hull, it further include heat sink, the heat sink is arranged in lower end, the lower end of described sleeve pipe is removably connected with bottom case, the bottom case is equipped with through-hole, radiator fan is equipped in the through-hole, heat-dissipating pipe is distributed in the outer surface of the aluminum hull, the inner surface of described sleeve pipe is equipped with the groove cooperated with heat-dissipating pipe, and one end of the heat-dissipating pipe is contacted with heat sink.The utility model is conducted heat on heat sink by heat-dissipating pipe, heat sink rapidly distributes heat under the action of radiator fan, good heat dissipation effect, with good high temperature resistance, high temperature or heat concentration, which can be effectively prevented, leads to capacitance short-circuit, improves the service life of capacitor.
Description
Technical field
The utility model relates to capacitor technology fields, more particularly to a kind of high temperature resistant electrolytic capacitor.
Background technique
Capacitor is that dielectric material by two electrodes and therebetween is constituted, and dielectric material is a kind of dielectric, when being set to
When in the electric field between two pieces of parallel plate electrodes with the equivalent charges of different polarity, polarization electricity is generated in dielectric surface due to polarization
Lotus then increase accordingly the charge being strapped on pole plate, maintains the potential difference between pole plate constant, and here it is capacitors to have capacitor
The reason of feature.Since capacitor has stopping direct current, i.e. prevention direct current is by allowing exchange to pass through；It bypasses (decoupling), as hands over
The element of certain parallel connections in current circuit provides low impedance path；Coupling, i.e., as the connection between two circuits, allow to exchange
Signal passes through and is transferred to the effects of next stage circuit and filtering, thus is widely deployed in various electronic products.
Chinese patent open file CN203871184U discloses a kind of novel fire resistant aluminium electrolutic capacitor comprising set
Pipe, aluminum hull and the capacitor core being arranged in aluminum hull, described sleeve pipe are pyrocondensation PVC insulation mould set, the aluminum hull inner surface and electricity
Hold fuse contact surface and be covered with heat-sink shell, the outer surface of the aluminum hull and sleeve interface are covered with heat conducting coating, pass through heat conducting coating
It radiates with the collective effect of heat-sink shell to capacitor core, melting in the case of preventing high temperature or heat from concentrating causes capacitor short
Road, however when capacitor is worked under the excessively high environment of temperature, it radiates only by heat conducting coating and heat-sink shell
Be it is far from being enough, radiating efficiency is low, and the heat of capacitor can be made to be difficult to distribute, cause capacitor expand bulge, influence electricity
The use characteristic and service life of container.
Utility model content
In order to overcome the shortcomings of the prior art, the utility model provides a kind of high temperature resistant electrolytic capacitor, dissipates
Thermal effect is good, and can be effectively prevented high temperature or heat concentration leads to capacitance short-circuit, improves the service life of capacitor.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of high temperature resistant electrolytic capacitor, including
Aluminum hull, the capacitor core being arranged in aluminum hull and the casing being nested on the outside of aluminum hull, further include heat sink, and the heat sink is set
It sets in lower end, the lower end of described sleeve pipe is removably connected with bottom case, and the bottom case is equipped with through-hole, is equipped in the through-hole
Heat-dissipating pipe is distributed in radiator fan, the outer surface of the aluminum hull, and the inner surface of described sleeve pipe is equipped with the groove cooperated with heat-dissipating pipe,
One end of the heat-dissipating pipe is contacted with heat sink.
Using the above scheme, capacitor core is put into aluminum hull and is packaged, then aluminum hull is covered by casing again
Firmly, when electrolytic capacitor is worked, the heat of generation is first transmitted on aluminum hull, and the heat-dissipating pipe on aluminum hull conducts heat to
On heat sink, heat sink rapidly distributes heat under the action of radiator fan, good heat dissipation effect, so that electrolytic capacitor
For device under the high temperature conditions in use, also can steadily work, preventing high temperature or heat from concentrating leads to capacitance short-circuit, improves
The service life of capacitor.
Preferably, the heat-dissipating pipe is hollow heat dissipation copper pipe, and the diameter of the heat dissipation copper pipe is by close to heat dissipation
One end of plate is gradually reduced to the other end.
Using the above scheme, when the heat of generation is transmitted on aluminum hull surface, heat dissipation copper pipe is conducted heat by one end
To one end close to heat sink, since the diameter of heat dissipation copper pipe is gradually reduced from one end close to heat sink to the other end, so that
It is transmitted to heat transfer efficiency on heat sink faster.
Preferably, the surface of the heat sink towards radiator fan side is equipped with heat dissipation raised line, the heat dissipation
The surface of raised line is equipped with heat absorbing coating.
Using the above scheme, the setting of the heat dissipation raised line for the plate surface that radiates is so that the heat on transmitting heat sink distributes more
Fastly, it plus the heat absorbing coating on heat dissipation raised line, has further speeded up and has conducted heat on heat sink.
Preferably, the inner wall of described sleeve pipe lower end is convex equipped with two groups of first boss to intermesh and second
Platform, is equipped with bayonet in the first boss and second boss, the bottom case be equipped with respectively with first boss and second boss
On bayonet the first fixture block and the second fixture block that match.
Using the above scheme, bottom case set is connected to the lower end of casing, bottom case is then rotated and the first fixture block and second is blocked
Block is turned to mutually to be clamped with the bayonet in first boss and second boss, and then bottom case is fixed on to the lower end of casing,
When needing to disassemble bottom case, it is only necessary to which opposite direction rotates bottom case, so that fixture block is detached from the clamping of bayonet, disassembly or peace
It fills more convenient.
Preferably, the capacitor core includes anode foils, Cathode Foil, electrolytic paper, insulating paper and thermally conductive paper roll
Around forming, for the electrolytic paper between anode foils and anode foil, the insulating paper is located at the back side of cathode foil, the thermal paper
It is tightly attached to the rear surface of insulating paper.
Preferably, the insulating paper is made of AR glass fiber material.
It preferably, further include negative electrode pin and negative electrode pin, one end point of the negative electrode pin and negative electrode pin
It is not connect with anode foils and Cathode Foil, the other end of the negative electrode pin and negative electrode pin extends to outside capacitor core.
Using the above scheme, by using AR glass fibre as insulating layer, so that capacitor core still can at high temperature
Good isolation characteristic is enough kept, prevents capacitor internal thawing from causing short circuit；It is in the rear surface setting thermal paper of insulating paper
In order to which internal heat can rapidly be transmitted to outside.
Preferably, further include rubber stopper, set on the rubber stopper there are two being worn for negative electrode pin and negative electrode pin
The pore crossed, the inner surface of the rubber stopper and another end in contact of heat dissipation copper pipe, the outer surface of the rubber stopper are equipped with thermally conductive
The inner surface of coating, the rubber stopper is equipped with heat absorbing coating.
Using the above scheme, rubber stopper can be sealed capacitor core, prevent external impurity from entering in aluminum hull
The normal work of capacitor core is influenced, while being equipped with heat absorbing coating and thermally conductive painting in the inner surface and the outer surface of rubber stopper respectively
Heat inside aluminum hull, can effectively be transmitted to outside aluminum hull, improve the service life of electrolytic capacitor by layer.
Preferably, the through-hole is equipped with anti-dust filter mesh.
Compared with prior art, the utility model has the beneficial effects that when electrolytic capacitor is worked, the heat of generation
It is first transmitted on aluminum hull, the heat-dissipating pipe on aluminum hull conducts heat on heat sink, and heat sink will under the action of radiator fan
Heat rapidly distributes, good heat dissipation effect, so that electrolytic capacitor is under the high temperature conditions in use, also can steadily carry out
Work, preventing high temperature or heat from concentrating leads to capacitance short-circuit, improves the service life of capacitor, has good heat-resisting quantity
Energy；Insulating paper in capacitor core uses AR glass fibre so that capacitor core can still be maintained at high temperature it is good
Isolation characteristic prevents capacitor internal thawing from causing short circuit, while in the rear surface of insulating paper setting thermal paper can be accelerated
The heat in portion is rapidly dispersed into outside.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the utility model high temperature resistant electrolytic capacitor.
Fig. 2 is the decomposition diagram of the utility model high temperature resistant electrolytic capacitor.
Fig. 3 is the cross-sectional view of the utility model high temperature resistant electrolytic capacitor.
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Fig. 5 is the structural schematic diagram of capacitor core.
1- through-hole；2- radiator fan；3- bottom case；4- rubber stopper；5- negative electrode pin；6- negative electrode pin；7- casing；8- is thermally conductive
Layer；9- heat-sink shell；10- capacitor core；101- Cathode Foil；102- electrolytic paper；103- anode foils；104- insulating paper；105- is thermally conductive
Paper；11- aluminum hull；12- heat-dissipating pipe；13- groove；14- heat dissipation raised line；15- heat sink；16- first boss；The first convex block of 17-；
The second convex block of 18-；19- second boss.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
In the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
Please refer to Fig. 1-5, a kind of high temperature resistant electrolytic capacitor, including aluminum hull 11, the capacitor core being arranged in aluminum hull 11
10 and it is nested with casing 7 in the outside of aluminum hull 11, is removably connected with bottom case 7 in the lower end of casing 7, bottom case 7 is equipped with through-hole
1, radiator fan 2 is equipped in through-hole 1, the outside of through-hole 1 is equipped with anti-dust filter mesh, the lower part of casing 7 is provided with heat sink
15, heat sink 15 is fixedly connected on 7 inner wall of casing, and the surface towards 2 side of radiator fan of heat sink 15 is equipped with heat dissipation
The surface of raised line 14, heat dissipation raised line 14 is equipped with heat absorbing coating, and heat-dissipating pipe 12, heat-dissipating pipe are distributed on the outer surface of aluminum hull 11
12 be hollow heat dissipation copper pipe, and one end of heat dissipation copper pipe is contacted with heat sink 15, and the diameter of heat dissipation copper pipe is by close to heat sink 15
One end be gradually reduced to the other end, the groove 13 that matches with heat dissipation copper pipe is equipped on the inner surface of casing 7.
Specifically, two groups of first boss 16 and second boss 19 to intermesh are equipped on the inner wall of 7 lower end of casing, the
Be equipped with bayonet in one boss 16 and second boss 19, be equipped on bottom case 3 respectively with first boss 16 and second boss 19
The first convex block 17 and the second convex block 18 that bayonet matches.
Specifically, capacitor core 10 includes anode foils 103, Cathode Foil 101, electrolytic paper 102, insulating paper 104 and thermally conductive
Paper 105 is wound, and for electrolytic paper 102 between anode foils 103 and Cathode Foil 101, insulating paper 104 is located at anode foils 103
The back side, thermal paper 105 are tightly attached in the rear surface of insulating paper 104, further include negative electrode pin 6 and negative electrode pin 5, negative electrode pin 6
It is connect respectively with anode foils 103 and Cathode Foil 101 with one end of negative electrode pin 5, the other end of negative electrode pin 6 and negative electrode pin 5
It extends to outside capacitor core 10.
Specifically, further include rubber stopper 4, set on rubber stopper 4 thin there are two being passed through for negative electrode pin 6 and negative electrode pin 5
The outer surface of hole, the inner surface of rubber stopper 4 and another end in contact of heat dissipation copper pipe, rubber stopper 4 is equipped with heat conducting coating 8, rubber stopper 4
Inner surface be equipped with heat absorbing coating 9.
The utility model has the beneficial effects that the heat of generation is first transmitted on aluminum hull 11 when electrolytic capacitor is worked,
Heat-dissipating pipe 12 on aluminum hull 11 conducts heat on heat sink 15, and heat sink 15 is fast by heat under the action of radiator fan 2
It distributes fastly, good heat dissipation effect, so that electrolytic capacitor be under the high temperature conditions in use, also can steadily work,
Preventing high temperature or heat from concentrating leads to capacitance short-circuit, improves the service life of capacitor, has good high temperature resistance；?
Insulating paper 104 in capacitor core 10 uses AR glass fibre, so that capacitor core 10 can still be maintained well at high temperature
Isolation characteristic, prevent capacitor internal thawing from causing short circuit, while 105 energy of thermal paper is set in the rear surface of insulating paper 104
Heat inside enough quickenings is rapidly dispersed into outside；The inner surface and the outer surface of rubber stopper 4 is equipped with heat absorbing coating 9 and thermally conductive painting
Heat inside aluminum hull 11, can effectively be transmitted to outside aluminum hull 11, improve the service life of electrolytic capacitor by layer 8.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (9)
1. a kind of high temperature resistant electrolytic capacitor including aluminum hull, the capacitor core being arranged in aluminum hull and is nested on the outside of aluminum hull
Casing, it is characterised in that: further include heat sink, the heat sink is arranged in lower end, and the lower end of described sleeve pipe is detachable
It is connected with bottom case, the bottom case is equipped with through-hole, is equipped with radiator fan in the through-hole, the outer surface of the aluminum hull is distributed with scattered
Heat pipe, the inner surface of described sleeve pipe are equipped with the groove cooperated with heat-dissipating pipe, and one end of the heat-dissipating pipe is contacted with heat sink.
2. high temperature resistant electrolytic capacitor according to claim 1, it is characterised in that: the heat-dissipating pipe is hollow radiating copper
The diameter of pipe, the heat dissipation copper pipe is gradually reduced from one end close to heat sink to the other end.
3. high temperature resistant electrolytic capacitor according to claim 1, it is characterised in that: the heat sink is towards radiator fan one
The surface of side is equipped with heat dissipation raised line, and the surface of the heat dissipation raised line is equipped with heat absorbing coating.
4. high temperature resistant electrolytic capacitor according to claim 1, it is characterised in that: the inner wall of described sleeve pipe lower end is equipped with
Two groups of first boss and second boss to intermesh are equipped with bayonet, the bottom case in the first boss and second boss
It is equipped with the first fixture block and the second fixture block matched respectively with the bayonet in first boss and second boss.
5. high temperature resistant electrolytic capacitor according to claim 1, it is characterised in that: the capacitor core include anode foils,
Cathode Foil, electrolytic paper, insulating paper and thermal paper are wound, and the electrolytic paper is described between anode foils and anode foil
Insulating paper is located at the back side of cathode foil, and the thermal paper is tightly attached to the rear surface of insulating paper.
6. high temperature resistant electrolytic capacitor according to claim 5, it is characterised in that: the insulating paper uses AR glass fibre
Material is made.
7. high temperature resistant electrolytic capacitor according to claim 5, it is characterised in that: further include that negative electrode pin and cathode draw
One end of foot, the negative electrode pin and negative electrode pin is connect with anode foils and Cathode Foil respectively, and the negative electrode pin and cathode draw
The other end of foot extends to outside capacitor core.
8. high temperature resistant electrolytic capacitor according to claim 7, it is characterised in that: it further include rubber stopper, the rubber stopper
On set that there are two the pore that passes through for negative electrode pin and negative electrode pin, the inner surface of the rubber stopper and the other ends of heat dissipation copper pipe
Contact, the outer surface of the rubber stopper are equipped with heat conducting coating, and the inner surface of the rubber stopper is equipped with heat absorbing coating.
9. high temperature resistant electrolytic capacitor according to claim 1, it is characterised in that: the through-hole is equipped with dustproof filter
Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828539.6U CN208861832U (en) | 2018-11-07 | 2018-11-07 | A kind of high temperature resistant electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828539.6U CN208861832U (en) | 2018-11-07 | 2018-11-07 | A kind of high temperature resistant electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208861832U true CN208861832U (en) | 2019-05-14 |
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ID=66421929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821828539.6U Active CN208861832U (en) | 2018-11-07 | 2018-11-07 | A kind of high temperature resistant electrolytic capacitor |
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| Country | Link |
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| CN (1) | CN208861832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205962A (en) * | 2021-05-08 | 2021-08-03 | 南通华裕电子有限公司 | Leakage-proof device for working electrolyte of electrolytic capacitor |
| CN115331967A (en) * | 2022-07-22 | 2022-11-11 | 安徽赛福电子有限公司 | Capacitor with automatic temperature rise protection function |
-
2018
- 2018-11-07 CN CN201821828539.6U patent/CN208861832U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205962A (en) * | 2021-05-08 | 2021-08-03 | 南通华裕电子有限公司 | Leakage-proof device for working electrolyte of electrolytic capacitor |
| CN113205962B (en) * | 2021-05-08 | 2022-04-22 | 南通华裕电子有限公司 | Leakage-proof device for working electrolyte of electrolytic capacitor |
| CN115331967A (en) * | 2022-07-22 | 2022-11-11 | 安徽赛福电子有限公司 | Capacitor with automatic temperature rise protection function |
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