CN203812729U - Solid electrolytic condenser - Google Patents
Solid electrolytic condenser Download PDFInfo
- Publication number
- CN203812729U CN203812729U CN201420133320.XU CN201420133320U CN203812729U CN 203812729 U CN203812729 U CN 203812729U CN 201420133320 U CN201420133320 U CN 201420133320U CN 203812729 U CN203812729 U CN 203812729U
- Authority
- CN
- China
- Prior art keywords
- electrolytic condenser
- positive
- lead
- tantalum
- out tablet
- 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.)
- Expired - Lifetime
Links
- 239000007787 solid Substances 0.000 title claims abstract description 8
- 239000003990 capacitor Substances 0.000 claims abstract description 29
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000004513 sizing Methods 0.000 abstract 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model discloses a solid electrolytic condenser. The solid electrolytic condenser belongs to an electrolytic condenser. The electrolytic condenser aims to be small in size and convenient in installation. The electrolytic condenser comprises an insulation housing, a capacitor core packaged in the insulation housing, a positive electrode lead-out sheet and a negative electrode lead-out sheet, wherein the positive and negative electrode lead-out sheets are fixed to the insulation housing and in electric connection with the capacitor core. At least one capacitor core is provided. The capacitor core comprises a positive tantalum block (7), a tantalum wire (8) fixed to the positive tantalum block (7), an electrolyte layer (6) covering the surface of the positive tantalum block (7), a carbon layer (5) covering the surface of the electrolyte layer (6), and a conductive sizing agent layer (4) covering the surface of the carbon layer. A positive lead-out wire (3) is in electric connection with the tantalum wire (8), and the negative lead-out wire (3) is in electric connection with the conductive sizing agent layer (4). The electrolytic condenser is small in equivalent series resistor and equivalent series inductor and low in capacitance attenuation speed, and enables normal operation in the circuit having an operation frequency of 10MHz.
Description
Technical field
The utility model relates to a kind of electrolytic capacitor, relates in particular to a kind of solid electrolytic capacitor.
background technology:the structure of solid electrolyte Ta capacitor is the coated manganese dioxide electrolyte in anode block surface or the conducting polymer electrolyte that has dielectric oxide film in generation, is then encapsulated in insulating coating; It has, and reliability is high, leakage current is little, frequency characteristic is good, the feature of stable performance.Along with the progress of technology, electronic equipment not only develops to miniaturization, digitlization and intelligent direction, and requires the operating frequency of electronic equipment more and more higher.But, existing tantalum capacitor is due to the restriction of structural design and manufacturing process, not only equivalent series resistance (ESR) value, equivalent series inductance (ESL) are worth larger, frequency reach 10KHZ when above capacitance fall-off speed fast, and every capacitor only has a capacitor body, the volume that therefore can increase electronic equipment in the time need to adopting multiple capacitor, can not meet the requirement of electronics miniaturization.
summary of the invention:in order to overcome the defect existing in prior art, the utility model aims to provide a kind of volume solid electrolytic capacitor little, easy for installation.
To achieve these goals, the utility model by the following technical solutions: it comprises insulation crust, be encapsulated in capacitor body in this insulation crust, be fixed on the anodal lead-out tablet and the negative pole lead-out tablet that on insulation crust, are electrically connected with this capacitor body; Described capacitor body is at least one, this capacitor body by anode tantalum piece, be fixed on tantalum wire on this anode tantalum piece, be coated on the dielectric substrate on anode tantalum piece surface, the carbon-coating that is coated on this dielectric substrate surface, the conductive paste bed of material that is coated on this carbon-coating surface form, anodal lead-out tablet is electrically connected with tantalum wire, negative pole lead-out tablet is electrically connected with the conductive paste bed of material.
Anodal lead-out tablet and negative pole lead-out tablet are the U font laminated structure that bends to L shape.
Compared with the prior art, the utility model, owing to having adopted technique scheme, is encapsulated in many capacitor bodies in an insulation crust on the basis of traditional structure, has therefore reduced the volume of capacitor; In addition, owing to having adopted the electrode of sheet inserter structure, therefore circuit is quick and easy for installation; Owing to having adopted U font laminated structure electrode, therefore increase the leading foot of electrode, thereby reduced equivalent series resistance and the equivalent series inductance of capacitor, the frequency of utilization of capacitor can reach 10MHz.
brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A cutaway view in Fig. 1.
In figure: the anodal lead-out tablet 3 conductive paste bed of material 4 carbon-coating 5 dielectric substrate 6 anode tantalum piece 7 tantalum wires 8 of insulation crust 1 negative pole lead-out tablet 2
embodiment:below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Fig. 1～2: four capacitor bodies are encapsulated in the insulation crust 1 of being made up of epoxy resin or plastics.Described capacitor body by anode tantalum piece 7, be fixed on tantalum wire 8 on this anode tantalum piece, be coated on the dielectric substrate 6 on anode tantalum piece 7 surfaces, the carbon-coating 5 that is coated on this dielectric substrate surface, the conductive paste bed of material 4 that is coated on this carbon-coating surface form, the anodal lead-out tablet 3 being fixed on insulation crust 1 is electrically connected with the conductive paste bed of material 4 with the negative pole lead-out tablet 2 that tantalum wire 8 is electrically connected, is fixed on insulation crust 1.Anodal lead-out tablet 3 and negative pole lead-out tablet 2 are the U font laminated structure that bends to L shape.
Claims (2)
1. a solid electrolytic capacitor, comprises insulation crust, is encapsulated in capacitor body in this insulation crust, is fixed on the anodal lead-out tablet and the negative pole lead-out tablet that on insulation crust, are electrically connected with this capacitor body; It is characterized in that: described capacitor body is at least one, this capacitor body by anode tantalum piece (7), be fixed on tantalum wire (8) on this anode tantalum piece, be coated on the dielectric substrate (6) on anode tantalum piece (7) surface, the carbon-coating (5) that is coated on this dielectric substrate surface, the conductive paste bed of material (4) that is coated on this carbon-coating surface form, anodal lead-out tablet (3) is electrically connected with tantalum wire (8), negative pole lead-out tablet (2) is electrically connected with the conductive paste bed of material (4).
2. solid electrolytic capacitor according to claim 1, is characterized in that: anodal lead-out tablet (3) and negative pole lead-out tablet (2) are the U font laminated structure that bends to L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133320.XU CN203812729U (en) | 2014-03-24 | 2014-03-24 | Solid electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133320.XU CN203812729U (en) | 2014-03-24 | 2014-03-24 | Solid electrolytic condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812729U true CN203812729U (en) | 2014-09-03 |
Family
ID=51451449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420133320.XU Expired - Lifetime CN203812729U (en) | 2014-03-24 | 2014-03-24 | Solid electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812729U (en) |
-
2014
- 2014-03-24 CN CN201420133320.XU patent/CN203812729U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |