CN104269272A - High-temperature-resisting chip-type aluminum electrolytic capacitor - Google Patents
High-temperature-resisting chip-type aluminum electrolytic capacitor Download PDFInfo
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- CN104269272A CN104269272A CN201410517682.3A CN201410517682A CN104269272A CN 104269272 A CN104269272 A CN 104269272A CN 201410517682 A CN201410517682 A CN 201410517682A CN 104269272 A CN104269272 A CN 104269272A
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- high temperature
- electrolytic capacitor
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- aluminum electrolytic
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Abstract
The invention relates to a high-temperature-resisting chip-type aluminum electrolytic capacitor which comprises aluminum foil, electrolytic paper, adhesive tape, electrolytic solutions, a rubber plug, a guide pin aluminum rod, a guide pin lead and a shell. A base plate is arranged at the bottom of the shell. The guide pin lead penetrates through the base plate and is attached to the bottom of the base plate in a flatly-pressed mode. The adhesive tape is wound on the surface of the outer layer electrolytic paper. The adhesive tape comprises a base material and an adhesive layer. The base material component comprises a wood fiber which is good in high temperature resistance and a high-temperature plastic fiber, wherein the weight percentage content of the wood fiber is 20% to 80% of the sum of the weight percentage contents of the components of the base material, and the adhesive layer is a transparent acrylic glue layer. The high-temperature-resisting chip-type aluminum electrolytic capacitor can bear higher reflow soldering temperature and is high in tensile strength, resist to fusion, resist to loosening, resist to shrink and free of deformation and has the advantages of being resist to high temperature, odourless and free of poison, good in conductivity, low in electric leakage, low in loss, long in service life and good in reliability, and the environment is protected.
Description
Technical field
This relates to a kind of capacitor, particularly relates to a kind of high temperature resistant sheet type aluminum electrolytic capacitor.
Background technology
Along with electronic product is to slim, miniaturization, electronic circuit develops to multi-layer sheet, electronic devices and components also rapidly to miniaturized, surface mount manner is fast-developing, therefore chip components and parts comprise sheet type aluminum electrolytic and will further develop.
The pasting type aluminium electrolytic capacitor of traditional applicable reflow soldering is with lead-out wire, inner foil and electrolytic paper are wound as cylinder-like structure and use adhesive tape to be bonded as one, plug and shell is used to encapsulate after impregnation is high temperature resistant electrolyte, and this type of aluminium electrolytic capacitor by higher Lead-free Reflow Soldering furnace temperature time, because high temperature action can cause the adhesive tape of winding core bag to melt fracture, inner core contracts out now loose, and adhesive tape such as to come off at the situation, cause electrical property deterioration, production reliability reduces.
Traditional capacitor, its adhesive tape mainly uses the homogenous material such as polypropylene (PP) or polyphenylene sulfides (PPS) to obtain, as 3703F and the 320A product of Japanese Dong company, PP material heatproof is very poor, is mainly used in lead jointing and plug-in unit product, PPS there will be obviously contraction and base material deliquescing more than 200 degree, so be used on product, during by high-temp leadless Reflow Soldering, core bag can be there is loose, production reliability reduces, and adhesive tape such as to come off at the situation.Other high temperature gummed tapes known at present also have PET material and PI polyimides, although its theoretical heatproof can reach 300 degree, but reality just there will be the situation of softening stretching resistance decline at degree more than 200, more seriously itself and GBL at high temperature have significant reaction, therefore there will be the bad phenomenon such as aging cracking, cause product reliability cannot meet design requirement.
Chinese patent application CN2884478Y discloses a kind of sheet type aluminum electrolytic capacitor, it comprises aluminium foil, positive wire and cathode conductor, electrolytic paper, adhesive tape, electrolyte, plug, shell and bedplate, described positive pole guide pin and described negative electrode guide needle are all gone between by guide pin aluminium bar and guide pin and form, although capacitor firm welding disclosed in this, processing cost is low, but the adhesive tape of this capacitor mainly uses PP material and PPS(to gather sub-benzene sulfide by conventional need) material makes, cause this capacitor when by higher Lead-free Reflow Soldering furnace temperature, because high temperature action can cause the adhesive tape of winding core bag to melt fracture, inner core contracts out now loose situation, cause electrical property deterioration, production reliability reduces.
Summary of the invention
The object of the present invention is to provide and a kind ofly can bear higher reflow soldering temperature, tensile strength is high, anti-fusing, loosening, resisted shrinkage, indeformable, have high temperature resistant, environmental protection, odorless is nontoxic, conducts electricity very well, Low dark curient, low-loss, long-life, the high temperature resistant sheet type aluminum electrolytic capacitor of the advantage that reliability is high.
For achieving the above object, the invention provides following technical scheme:
A kind of high temperature resistant sheet type aluminum electrolytic capacitor, comprise aluminium foil, electrolytic paper, adhesive tape, electrolyte, plug, guide pin aluminium bar, guide pin lead-in wire and shell, described outer casing bottom is provided with bedplate, described guide pin lead-in wire passes described bedplate and flattens and is attached to bottom described bedplate, described tape roll is around the described electrolytic paper surface of skin, the cylindric core reeled by described aluminium foil and electrolytic paper is wrapped up tight, described adhesive tape comprises base material and adhesive-layer, the component of described base material comprises the good wood fibre of resistance to elevated temperatures and high temperature plastics fiber, the mode of blending is adopted to make by described wood fibre and high temperature plastics fiber, wherein the weight percent content of wood fibre is 20% ~ 80% of each component weight percent content summation of described base material, described adhesive-layer is uniformly coated on the side of described base material, described adhesive-layer is acrylic glue layer.
Because described base material is obtained by wood fibre and high temperature plastics fiber blend, ratio shared by wherein said wood fibre is by the resistance to elevated temperatures of the described adhesive tape of impact and resisted shrinkage performance, and then affect the quality of integral product, therefore, the weight percent content of the present invention to described wood fibre is done further preferably, the weight percent content of described wood fibre is 30% ~ 50% of each component weight percent content summation, by preferably obtained described adhesive tape high temperature resistant, anti-fusing, loosening, reliability, resisted shrinkage and indeformable aspect of performance have had further raising.
Further, described high temperature plastics fiber is the combination of polyphenylene sulfides (PPS) or polyimides (PI) or polyphenylene sulfides (PPS) and polyimides (PI).
Further, described high temperature plastics fiber is polyphenylene sulfides.
Consider the factor such as resistance to elevated temperatures and tensile strength, wood fibre of the present invention is made up of one or more combined materials in abaca, bamboo powder and sisal hemp wood, and the fibre length of the preferred described wood fibre of the present invention is the fiber bulk density 17-21g/cm of 0.5-3mm and described wood fibre
3, the fibre length of further preferred described wood fibre is the fiber bulk density of 1-2mm and described wood fibre is 18 g/cm
3.The present invention is to the performance preferably not only considering wood fibre itself of described wood fibre, and consider the overall performance after described wood fibre and described high temperature plastics fibers mixture, its booster action played in mixing is not that the wood fibre of other types can replace easily, compared with adopting the wood fibre of other types, after the preferred wood fibre of the present invention and described high temperature plastics fibers mixture, there is more superior thermal stability and tensile strength.
The thickness of adhesive tape of the present invention is 0.035mm-0.065mm, saves material cost while making the tensile strength of described adhesive tape and resistance to elevated temperatures meet user demand.
Be compared with the prior art, the invention has the beneficial effects as follows: high temperature resistant sheet type aluminum electrolytic capacitor of the present invention can bear higher reflow soldering temperature, and heatproof can reach more than 300 degree, avoiding at high temperature reacts with GBL is simultaneously dissoluted and causes the phenomenon of anti-aging cracking to occur, core pack arrangement is fastening, and tensile strength is high, anti-fusing, loosening, resisted shrinkage, indeformable, have high temperature resistant, environmental protection, odorless is nontoxic, conducts electricity very well, Low dark curient, low-loss, long-life, the advantage that reliability is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is high temperature resistant sheet type aluminum electrolytic capacitor structural representation in the embodiment of the present invention;
Fig. 2 is the structural representation of adhesive tape described in sheet type aluminum electrolytic capacitor high temperature resistant in the embodiment of the present invention.
Embodiment
Although the present invention is described with reference to concrete execution mode, those skilled in the art, by after reading foregoing description, can make apparent amendment and modification to the present invention, and without prejudice to the intent of the present invention and essence.The present invention has a mind to these amendments and modification to comprise within the scope of the claims.
A kind of high temperature resistant sheet type aluminum electrolytic capacitor, as shown in Figure 1 and Figure 2, comprise aluminium foil 1, electrolytic paper 2, adhesive tape 3, electrolyte (not shown), plug 4, guide pin aluminium bar 5, guide pin lead-in wire 6 and shell 7, bedplate 8 is provided with bottom described shell 7, described guide pin lead-in wire 6 passes described bedplate 8 and flattens and is attached to bottom described bedplate 8, described adhesive tape 3 is wound on outer described electrolytic paper 2 surface, wraps up tight by the cylindric core reeled by described aluminium foil 1 and electrolytic paper 2.Described adhesive tape 3 comprises base material 31 and adhesive-layer 32, the thickness of described adhesive tape 3 is 0.035mm-0.065mm, the present embodiment is preferably 0.05mm, the thickness of described base material 31 is 0.03mm-0.055mm, the present embodiment is preferably 0.042mm, the thickness of described adhesive-layer 32 is 0.005mm-0.01mm, the present embodiment is preferably 0.008mm, preferred by described adhesive tape 3 and component thickness thereof, ensure that the tensile strength of described adhesive tape 3 and resistance to elevated temperatures save material cost while meeting user demand, described adhesive-layer 32 is transparent acrylic glue layer, the component of described base material 31 comprises the good wood fibre of resistance to elevated temperatures and high temperature plastics fiber, described high temperature plastics fiber is the combination of polyphenylene sulfides (PPS) or polyimides (PI) or polyphenylene sulfides (PPS) and polyimides (PI), the present embodiment is preferably polyphenylene sulfides (PPS), described base material 31 adopts the mode of blending to make by described wood fibre and high temperature plastics fiber, described wood fibre and high temperature plastics fiber is made fully to mix weave in, greatly improve resistance to elevated temperatures, heatproof can reach more than 300 degree, avoiding at high temperature reacts with GBL is simultaneously dissoluted and causes the phenomenon of anti-aging cracking to occur, there is environmental protection, odorless is nontoxic, high temperature resistant and resisted shrinkage advantage of good performance.Described wood fibre of the present invention is made up of one or more combined materials in abaca, bamboo powder and sisal hemp wood, the present embodiment is preferably abaca, the fibre length of described wood fibre is 0.5-3mm, more preferably 1-2mm, the present embodiment is preferably 1.5mm, the fiber bulk density 17-21g/cm of described wood fibre
3, the present embodiment is preferably 18 g/cm
3, compared with adopting the wood fibre of other types, after the preferred wood fibre of the present invention and described high temperature plastics fibers mixture, there is more superior thermal stability and tensile strength.The weight percent content of described wood fibre is 20% ~ 80% of each component weight percent content summation of described base material 31, the described base material 31 obtained by this percentage range has high temperature resistant by being combined obtained described adhesive tape 3 with described adhesive-layer 32, anti-fusing, loosening, environmental protection, odorless is nontoxic, reliability is high, resisted shrinkage and the good advantage of indeformable performance, can avoid at high temperature reacting with GBL being dissoluted and causing the phenomenon of anti-aging cracking to occur simultaneously, higher reflow soldering temperature can be born, low friction, wear resistant is damaged, moisture resistance is good, insulating properties is high, further preferably, the weight percent content of described wood fibre is 30% ~ 50% of each component weight percent content summation of described base material 31, obtained described adhesive tape 3 is combined high temperature resistant with described adhesive-layer 32 by preferably obtained described base material 31, anti-fusing, loosening, reliability, resisted shrinkage and indeformable aspect of performance have had further raising.
Be a kind of embodiment of high temperature resistant sheet type aluminum electrolytic capacitor of the present invention and the contrast test of other existing like products with following table 1, wherein preferred described high temperature plastics fiber is polyphenylene sulfides (PPS), the fibre length 1.5mm of preferred described wood fibre, the fiber bulk density of described wood fibre is 18 g/cm
3and the thickness limiting the described adhesive tape 3 of the present embodiment 1-5 is 0. 065mm, the thickness of described base material 31 is 0.04mm, and the thickness of described adhesive-layer 32 is 0.008mm, comparative example is the like product bought in market, is respectively day east 3703F, day east 320A and new flying saucer FD57.
Table 1: the contrast test of the embodiment of the present invention and other existing products
As can be seen from Table 1, the described base material 31 that the wood fibre being 20% ~ 80% by polyphenylene sulfides (PPS) and weight percent content adopts the mode of blending to make, after the welding of its high temperature reflux, adhesive tape 3 expulsion rate is 0, the reflow soldering temperature can born when wood fibre content is 20% ~ 80% reaches more than 300 DEG C, resistance to elevated temperatures is good, and it is high to have tensile strength, anti-fusing, loosening, resisted shrinkage, indeformable advantage, and the reflow soldering temperature that wood fibre content can bear when being 30% ~ 50% is more increased, and the described base material 31 adopting single polypropylene (PP) or polyphenylene sulfides (PPS) or polyimides (PI) obtained, after the welding of its high temperature reflux, adhesive tape 3 expulsion rate is higher, the reflow soldering temperature that can bear is lower, resistance to elevated temperatures is poor, tensile strength is low.
The described base material 31 of high temperature resistant sheet type aluminum electrolytic capacitor of the present invention adopts the mode of blending to make by described wood fibre and high temperature plastics fiber, described high temperature plastics fiber is the combination of polyphenylene sulfides (PPS) or polyimides (PI) or polyphenylene sulfides (PPS) and polyimides (PI), described wood fibre is made up of one or more combined materials in abaca, bamboo powder and sisal hemp wood, the fibre length of described wood fibre is 0.5-3mm, the fiber bulk density 17-21g/cm of described wood fibre
3, and the weight percent content of described wood fibre is 20% ~ 80% of each component weight percent content summation of described base material 31, described base material 31 is combined to form adhesive tape 3 with described adhesive-layer 32, described adhesive tape 3 is wound on outer described electrolytic paper 2 surface, the cylindric core reeled by described aluminium foil 1 and electrolytic paper 2 is wrapped up tight, make high temperature resistant sheet type aluminum electrolytic capacitor of the present invention can bear higher reflow soldering temperature, heatproof can reach more than 300 degree, avoiding at high temperature reacts with GBL is simultaneously dissoluted and causes the phenomenon of anti-aging cracking to occur, core pack arrangement is fastening, tensile strength is high, anti-fusing, loosening, resisted shrinkage, indeformable, have high temperature resistant, environmental protection, odorless is nontoxic, conduct electricity very well, Low dark curient, low-loss, long-life, the advantage that reliability is high.
Claims (10)
1. a high temperature resistant sheet type aluminum electrolytic capacitor, comprise aluminium foil, electrolytic paper, adhesive tape, electrolyte, plug, guide pin aluminium bar, guide pin lead-in wire and shell, described outer casing bottom is provided with bedplate, described guide pin lead-in wire passes described bedplate and flattens and is attached to bottom described bedplate, it is characterized in that: described tape roll is around the described electrolytic paper surface of skin, the cylindric core reeled by described aluminium foil and electrolytic paper is wrapped up tight, described adhesive tape comprises base material and adhesive-layer, the component of described base material comprises the good wood fibre of resistance to elevated temperatures and high temperature plastics fiber, the mode of blending is adopted to make by described wood fibre and high temperature plastics fiber, wherein the weight percent content of wood fibre is 20% ~ 80% of each component weight percent content summation of described base material, described adhesive-layer is uniformly coated on the side of described base material, described adhesive-layer is transparent acrylic glue layer.
2. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, the weight percent content of described wood fibre is 30% ~ 50% of each component weight percent content summation.
3. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, described high temperature plastics fiber is the combination of polyphenylene sulfides or polyimides or polyphenylene sulfides and polyimides.
4. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, described high temperature plastics fiber is polyphenylene sulfides.
5. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, described wood fibre is made up of one or more combined materials in abaca, bamboo powder and sisal hemp wood.
6. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, the fibre length of described wood fibre is 0.5-3mm.
7. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 5, is characterized in that, the fibre length of described wood fibre is 1-2mm.
8. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, the fiber bulk density 17-21g/cm of described wood fibre
3.
9. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, the fiber bulk density of described wood fibre is 18 g/cm
3.
10. high temperature resistant sheet type aluminum electrolytic capacitor as claimed in claim 1, is characterized in that, the thickness of described adhesive tape is 0.035mm-0.065mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517682.3A CN104269272A (en) | 2014-09-30 | 2014-09-30 | High-temperature-resisting chip-type aluminum electrolytic capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517682.3A CN104269272A (en) | 2014-09-30 | 2014-09-30 | High-temperature-resisting chip-type aluminum electrolytic capacitor |
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| CN104269272A true CN104269272A (en) | 2015-01-07 |
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| CN201410517682.3A Pending CN104269272A (en) | 2014-09-30 | 2014-09-30 | High-temperature-resisting chip-type aluminum electrolytic capacitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298245A (en) * | 2016-08-24 | 2017-01-04 | 湖南艾华集团股份有限公司 | A kind of glue core bag of aluminium electrolutic capacitor |
| CN110706928A (en) * | 2019-09-25 | 2020-01-17 | 富之庆电子（深圳）有限公司 | Guide pin type aluminum electrolytic capacitor and production method thereof |
| CN114678220A (en) * | 2022-04-13 | 2022-06-28 | 珠海格力新元电子有限公司 | Soldering lug type aluminum electrolytic capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092230A (en) * | 2001-09-18 | 2003-03-28 | Nippon Chemicon Corp | Solid electrolytic capacitor |
| CN2884478Y (en) * | 2006-03-15 | 2007-03-28 | 珠海华冠电容器有限公司 | Gilled aluminium electrolysis capacity |
| CN101010759A (en) * | 2004-08-25 | 2007-08-01 | 三洋电机株式会社 | Solid electrolytic capacitor |
-
2014
- 2014-09-30 CN CN201410517682.3A patent/CN104269272A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092230A (en) * | 2001-09-18 | 2003-03-28 | Nippon Chemicon Corp | Solid electrolytic capacitor |
| CN101010759A (en) * | 2004-08-25 | 2007-08-01 | 三洋电机株式会社 | Solid electrolytic capacitor |
| CN2884478Y (en) * | 2006-03-15 | 2007-03-28 | 珠海华冠电容器有限公司 | Gilled aluminium electrolysis capacity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298245A (en) * | 2016-08-24 | 2017-01-04 | 湖南艾华集团股份有限公司 | A kind of glue core bag of aluminium electrolutic capacitor |
| CN110706928A (en) * | 2019-09-25 | 2020-01-17 | 富之庆电子（深圳）有限公司 | Guide pin type aluminum electrolytic capacitor and production method thereof |
| CN110706928B (en) * | 2019-09-25 | 2021-08-13 | 富之庆电子（深圳）有限公司 | Guide pin type aluminum electrolytic capacitor and production method thereof |
| CN114678220A (en) * | 2022-04-13 | 2022-06-28 | 珠海格力新元电子有限公司 | Soldering lug type aluminum electrolytic capacitor |
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Application publication date: 20150107 |