CN214848215U - Copper electrode ceramic capacitor - Google Patents
Copper electrode ceramic capacitor Download PDFInfo
- Publication number
- CN214848215U CN214848215U CN202121076746.2U CN202121076746U CN214848215U CN 214848215 U CN214848215 U CN 214848215U CN 202121076746 U CN202121076746 U CN 202121076746U CN 214848215 U CN214848215 U CN 214848215U
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- China
- Prior art keywords
- copper electrode
- ceramic
- ceramic capacitor
- copper
- electrode
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- 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.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 44
- 239000010949 copper Substances 0.000 title claims abstract description 44
- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 12
- 229910052709 silver Inorganic materials 0.000 abstract description 13
- 239000004332 silver Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 12
- 239000012212 insulator Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 silver ions Chemical class 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
The utility model relates to a high-voltage ceramic capacitor makes technical field, especially relates to copper electrode ceramic capacitor, include: the ceramic electrode comprises an insulating encapsulating layer, a ceramic medium, a welding point, a copper electrode layer and electrode leads, wherein the copper electrode layer is adhered to the upper surface and the lower surface of the ceramic medium, one ends of the two electrode leads are connected to the outer surface of the copper electrode layer through the welding point respectively, and the insulating encapsulating layer is wrapped outside the ceramic medium. The thickness of the copper electrode layer is 0.015-0.02 umm. The utility model has the advantages that: the ceramic capacitor is composed of ceramic insulator and copper electrode made of copper. Because the stability of the metal copper is strong (more stable than silver) and the high-frequency loss (DF value) is low, the ceramic capacitor product is not easy to generate heat, short circuit and the like when used in a high-frequency circuit, the working reliability of the product is improved, and the service life of the product is prolonged (more than 100000 hours).
Description
Technical Field
The utility model relates to a high-pressure ceramic capacitor makes technical field, especially relates to a high temperature resistant and long service life's high-pressure ceramic capacitor by metal copper electrode capacitor chip preparation.
Background
The ceramic capacitor has a very wide application range, and mainly has the functions of charging and discharging and storing electric energy; the electronic circuit is mainly used for bypass, coupling, filtering, resonance and the like; for decades, the ceramic capacitor electrode manufactured by the silver sintering and infiltrating method has the characteristics of simple process, excellent high-frequency performance of the product and the like, and is widely applied. But silver ions are easy to migrate in the using process, so that the capacitor fails in the long-term using process; in addition, when the lead of the ceramic capacitor electrode is welded, the silver electrode is easily corroded by high-temperature soldering tin, so that the defects of potential false welding and the like in the welding process are caused; in addition, silver, a noble metal, has been used in recent years because of its shortage and international price explosion, and the cost of using a silver electrode for a ceramic capacitor has been greatly increased. Therefore, optimizing the materials used for the ceramic capacitor electrode becomes a very urgent task in the industry for improving the electrical performance of the ceramic capacitor, prolonging the service life, reducing the production and manufacturing cost and the like.
By analyzing the structure and the production process of the ceramic capacitor and combining a large number of practical application tests to verify, researchers put forward a metal copper electrode ceramic capacitor with stable capacity, reliable production process and low cost, so that the metal copper electrode ceramic capacitor can continuously work on a circuit, has longer service life and obtains better application market.
SUMMERY OF THE UTILITY MODEL
The utility model aims at mainly releasing a high frequency loss is low, temperature resistance is good, long service life, can last copper electrode ceramic capacitor of work on the high-voltage line, capacity that exists when effectively solving ordinary silver electrode ceramic capacitor in the market during practical application easily attenuates, temperature resistance is poor, use the longevity face weak point and shortcoming such as manufacturing cost height.
A copper electrode ceramic capacitor comprising: the ceramic electrode comprises an insulating encapsulating layer, a ceramic medium, a welding point, a copper electrode layer and electrode leads, wherein the copper electrode layer is adhered to the upper surface and the lower surface of the ceramic medium, one ends of the two electrode leads are connected to the outer surface of the copper electrode layer through the welding point respectively, and the insulating encapsulating layer is wrapped outside the ceramic medium.
Specifically, the thickness of the copper electrode layer is 0.015-0.02 umm.
The utility model has the advantages that: the ceramic capacitor is formed by coating a thin layer of metal silver on a ceramic insulator as an electrode; the metallic silver electrode is very thin (0.015-0.02 umm), and silver ions migrate within the ceramic body during long-term loading. The utility model relates to a copper electrode capacitor, which mainly comprises a ceramic insulator and a metal copper electrode, wherein the copper electrode is made of metal copper. Because the stability of the metal copper is strong (more stable than silver) and the high-frequency loss (DF value) is low, the ceramic capacitor product is not easy to generate heat, short circuit and the like when used in a high-frequency circuit, the working reliability of the product is improved, and the service life of the product is prolonged (more than 100000 hours).
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side sectional view of the present invention.
Description of the labeling: insulating encapsulating layer 1, ceramic dielectric 2, welding point 3, copper electrode layer 4 and electrode lead 5.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in fig. 1 to 2, a copper electrode ceramic capacitor includes: the ceramic electrode comprises an insulating encapsulating layer, a ceramic medium, a welding point, a copper electrode layer and electrode leads, wherein the copper electrode layer is adhered to the upper surface and the lower surface of the ceramic medium, one ends of the two electrode leads are connected to the outer surface of the copper electrode layer through the welding point respectively, the insulating encapsulating layer wraps the outside of the ceramic medium, and the thickness of the copper electrode layer is 0.015-0.02 umm. The copper electrode is made of metal copper, so that the high-frequency loss of the product is reduced, the temperature of the working environment is increased, and the service life of the product is prolonged.
The utility model discloses a principle is realized to the purpose: a ceramic capacitor with high electric strength, high temperature resistance and low high-frequency loss, which is manufactured by a ceramic capacitor chip adopting metal copper as an electrode, mainly comprises an insulating encapsulating layer, a ceramic medium, a welding point, a copper electrode and two end electrode leads; the copper electrode is made of metal copper, the high-frequency loss angle of the copper electrode is lower than that of a common silver electrode, and the price of the copper electrode is 30% of that of metal silver.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (2)
1. A copper electrode ceramic capacitor comprising: insulating encapsulated layer, ceramic dielectric, welding point, copper electrode layer and electrode lead, its characterized in that: copper electrode layers are adhered to the upper surface and the lower surface of the ceramic dielectric, one ends of leads of the two electrodes are connected to the outer surfaces of the copper electrode layers through welding points respectively, and the insulating encapsulating layers are wrapped outside the ceramic dielectric.
2. The copper electrode ceramic capacitor according to claim 1, wherein: the thickness of the copper electrode layer is 0.015-0.02 umm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076746.2U CN214848215U (en) | 2021-05-19 | 2021-05-19 | Copper electrode ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121076746.2U CN214848215U (en) | 2021-05-19 | 2021-05-19 | Copper electrode ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848215U true CN214848215U (en) | 2021-11-23 |
Family
ID=78775223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121076746.2U Expired - Fee Related CN214848215U (en) | 2021-05-19 | 2021-05-19 | Copper electrode ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848215U (en) |
-
2021
- 2021-05-19 CN CN202121076746.2U patent/CN214848215U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |