CN203521172U - Three-end capacitor - Google Patents
Three-end capacitor Download PDFInfo
- Publication number
- CN203521172U CN203521172U CN201320627535.2U CN201320627535U CN203521172U CN 203521172 U CN203521172 U CN 203521172U CN 201320627535 U CN201320627535 U CN 201320627535U CN 203521172 U CN203521172 U CN 203521172U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- electrode
- cross
- internal electrodes
- external
- 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
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- 239000003990 capacitor Substances 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 7
- 238000003475 lamination Methods 0.000 claims abstract description 5
- 239000003985 ceramic capacitor Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Abstract
Disclosed is a three-end capacitor which belongs to the technical field of ceramic capacitor manufacturing. The three-end capacitor includes a capacitor porcelain body comprised of a plurality of layers of ceramic laminations provided with cross-shaped internal electrodes and an external-end electrode connected with the cross-shaped internal electrodes. The three-end capacitor is characterized in that linear metal sheets which are printed in a stacked manner in alternation with the cross-shaped internal electrodes are arranged additionally on a ceramic dielectric layer with the cross-shaped internal electrodes and the linear metal sheets are connected with the external-end electrode. In the three-end capacitor, metal sheets which do not an affect effective capacitance area are arranged additionally to be connected with the external-end electrode of the capacitor so that a problem which exists in the prior three-end capacitors, that electrodes of the capacitor fall off and are damaged because of a small end-electrode contact area is solved effectively.
Description
Technical field
The utility model relates to the ceramic capacitor manufacturing technology field in electronic component.
Background technology
Three-terminal capacitor is the critical piece of filter circuit on pcb board.In fact existing three-terminal capacitor is exactly the stacked dual-capacitor structure of multi-layer ceramics, and its internal structure is to have the porcelain film of electrode in cross to replace lamination, and alternately exit electrode is three end lead-out modes.The shortcoming of this three-terminal capacitor is that the metal electrode contact area of drawing due to the termination electrode of its chip is less, and its electrode end surface bond strength is less, when welding is used, easily the termination electrode of chip is pulled or by chip drawing crack, causes product short-circuit failure.Along with the requirement of filter circuit operational environment is more and more higher, also more and more higher to the reliability requirement of product, it is most important that electrode end surface bond strength just seems.
Utility model content
The purpose of this utility model is intended to solve the problem of existing three-terminal capacitor termination electrode bond strength, and a kind of highly reliable three-terminal capacitor is provided.
Realizing the capacitor porcelain body that the three-terminal capacitor of the utility model object consists of the multi-layer ceramics lamination with electrode in cross and the external electrode being connected with electrode in cross forms, it is characterized in that having additional on the ceramic dielectric layer of electrode in having cross with cross in electrode alternately dislocation print folded in-line sheet metal, described in-line sheet metal is connected with external electrode.
This three-terminal capacitor does not affect the sheet metal of effective capacitance amount area and comes to be connected with the external electrode of capacitor by setting up, the sheet metal of the effective capacitance amount that the do not affect area of setting up not with effective lamination between electrode form the area that overlaps, therefore just can not increase the capacitance of single-layer ceramic porcelain diaphragm, and not can change the capacitance of capacitor, just play the effect of the contact area that increases ceramic porcelain diaphragm body and external electrode, thereby increased the bonding strength of capacitor body and external electrode, improved the ability of the anti-deformation of capacitor, avoid product in environmental test and mechanical test, to occur the situation that termination electrode comes off.
This three-terminal capacitor is set about from strengthening product end surface bond strength aspect, has effectively solved the little problem that causes electrode for capacitors to come off and damage of termination electrode contact area that existing three-terminal capacitor exists.Can be used for conventional manual flatiron welding, wave soldering or hot air reflux welding, its highest welding temperature can reach 240 ℃, has met current filter circuit welding requirements.Have that superior electrical property, reliability are high, technical maturity, the feature such as easy to make.Be specially adapted to various paster welding manners, meet in various instruments, instrument, electronic equipment and use.
Below in conjunction with drawings and Examples, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of this three-terminal capacitor
Fig. 2 is the structural representation of existing three-terminal capacitor
Embodiment
Referring to Fig. 1, it is example that this three-terminal capacitor be take the capacitor of five layers of electrode chip.The capacitor porcelain body 1 consisting of the ceramic dielectric layer 6 with electrode 2 in cross and the external electrode being connected with electrode in cross 2 form, and external electrode consists of tin lead layer 3, termination electrode barrier layer 4 and silver layer 5.All continue to use existing structure form.Feature of the present utility model be on the ceramic dielectric layer 6 of electrode in having cross, have additional with cross in electrode alternately dislocation print folded in-line sheet metal 7, described external electrode is connected with in-line sheet metal 7.This in-line sheet metal 7 can be made as interior electrode.Due to this sheet metal not with cross in electrode contact, do not affect effective capacitance amount area, the effective capacitance amount of capacitor remains unchanged.
For ease of understanding, Fig. 2 has provided the structural representation of existing three-terminal capacitor.
Claims (1)
1. three-terminal capacitor, the capacitor porcelain body consisting of the multi-layer ceramics lamination with electrode in cross and the external electrode being connected with electrode in cross form, it is characterized in that having additional on the ceramic dielectric layer of electrode in having cross with cross in electrode alternately dislocation print folded in-line sheet metal, described in-line sheet metal is connected with external electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627535.2U CN203521172U (en) | 2013-10-12 | 2013-10-12 | Three-end capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627535.2U CN203521172U (en) | 2013-10-12 | 2013-10-12 | Three-end capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521172U true CN203521172U (en) | 2014-04-02 |
Family
ID=50380063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320627535.2U Expired - Lifetime CN203521172U (en) | 2013-10-12 | 2013-10-12 | Three-end capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851590A (en) * | 2015-05-19 | 2015-08-19 | 北京元六鸿远电子技术有限公司 | Capacitor with multiple types of capacitance |
-
2013
- 2013-10-12 CN CN201320627535.2U patent/CN203521172U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851590A (en) * | 2015-05-19 | 2015-08-19 | 北京元六鸿远电子技术有限公司 | Capacitor with multiple types of capacitance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610100 No. 20 Xingguang Middle Road, National Economic and Technological Development Zone, Longquanyi District, Chengdu City, Sichuan Province Patentee after: Chengdu Hongke Electronic Technology Co.,Ltd. Address before: 610100 No. 20 Xingguang Middle Road, National Economic and Technological Development Zone, Longquanyi District, Chengdu City, Sichuan Province Patentee before: CHENGDU HONGMING UESTC NEW MATERIALS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |