CN204270875U - A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance - Google Patents
A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance Download PDFInfo
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- CN204270875U CN204270875U CN201520011927.5U CN201520011927U CN204270875U CN 204270875 U CN204270875 U CN 204270875U CN 201520011927 U CN201520011927 U CN 201520011927U CN 204270875 U CN204270875 U CN 204270875U
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- electrical capacitance
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Abstract
The utility model relates to ceramic capacitor technical field, and especially a kind of have the multilayer ceramic capacitor promoting internal electrical capacitance.It comprises capacitor body and external electrode, external electrode is electrically installed on capacitor body both sides, capacitor body inside is provided with several ceramic layers and electrode in several, mutually stacking between ceramic layer, an electrode containing cavity is formed between adjacent ceramic layer, in interior electrode contraposition intercalation electrode containing cavity, one end that interior electrode is positioned at external electrode is provided with at least one insulator and is electrically connected through insulator and external electrode.The mode of the utility model by structure adopting the mode of insulator replace the reserved interior electrode insulation usable floor area of tradition, therefore while this overall volume is reduced, not only can avoid the awkward situation that effective capacitance area ratio is too low, more can reach and increase the effect that effective capacitance area ratio is up to 100%, its structure is simple, has very strong practicality.
Description
Technical field
The utility model relates to ceramic capacitor technical field, and especially a kind of have the multilayer ceramic capacitor promoting internal electrical capacitance.
Background technology
As everyone knows, capacitor is as a kind of passive electronic component having dielectric between its circuit board.It is according to the difference of manufactured materials, can be divided into ceramic capacitor, Tantal condenser, aluminum capacitor device and plastic capacitor etc., and wherein ceramic capacitor can be divided into again single-layer ceramic capacitor and have the multilayer ceramic capacitor promoting internal electrical capacitance.And have the multilayer ceramic capacitor that promotes internal electrical capacitance because of have resistance to high high voltage, high temperature resistant, operational temperature scope extensively, can wafered, the advantage such as frequency characteristic is strong and volume is little, be therefore widely used in high-frequency electronic product and can electronic product be carried.Multi-layer ceramic capacitance generally comprises ceramic layer, interior electrode and external electrode, it is staggeredly stacked by ceramic layer and interior electrode, namely a ceramic layer is all clamped between two adjacent inner electrodes, and form an equivalent plate condenser, relend and be connected with external electrode by this interior electrode, and all equivalent plate capacitors are together in parallel, to increase this total capacitance with the multilayer ceramic capacitor promoting internal electrical capacitance and total carried charge.
At present, have promote internal electrical capacitance multilayer ceramic capacitor generally with microminiaturized, high capacity for trend development, but, along with component size reduces, the insulation area that this interior electrode uses significantly increases, cause effective capacitance area ratio to decrease, also limited this multilayer ceramic capacitor with lifting internal electrical capacitance simultaneously and expanded to objects such as microminiaturization and high capacities.
Therefore, how to improve effective capacitance area and make to have the multilayer ceramic capacitor promoting internal electrical capacitance and continue toward target development such as microminiaturized and high capacities, just becoming the target that related development business and relevant research staff make joint efforts.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is that providing a kind of has the multilayer ceramic capacitor promoting internal electrical capacitance.
To achieve these goals, the utility model adopts following technical scheme:
A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance, it comprises capacitor body and external electrode, described external electrode is electrically installed on capacitor body both sides, described capacitor body inside is provided with several ceramic layers and electrode in several, mutually stacking between described ceramic layer, an electrode containing cavity is formed between described adjacent ceramic layer, in described interior electrode contraposition intercalation electrode containing cavity, one end of described interior electrode is provided with at least one insulator and is electrically connected through insulator and external electrode.
Preferably, described ceramic layer comprises two outer ceramic layers and ceramic layer in several, and in the Thickness Ratio of described outer ceramic layer, the thickness of ceramic layer is thick.
Preferably, the material of described ceramic layer is barium titanate.
Preferably, the material of described external electrode and interior electrode is the composite material of the metals such as copper, silver, aluminium, nickel, gold or metal and barium titanate.
Preferably, the material of described insulator is silicon dioxide, aluminium oxide or macromolecular material.
Owing to have employed such scheme, the mode of the utility model by structure adopting the mode of insulator replace the reserved interior electrode insulation usable floor area of tradition, therefore while this overall volume is reduced, not only can avoid the awkward situation that effective capacitance area ratio is too low, more can reach and increase the effect that effective capacitance area ratio is up to 100%, and then reaching lifting internal electrical capacitance and microminiaturized integrally-built object, its structure is simple, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, a kind of have the multilayer ceramic capacitor promoting internal electrical capacitance, it comprises capacitor body 10 and external electrode 1, external electrode 1 is electrically installed on capacitor body 10 both sides, capacitor body 10 inside is provided with several ceramic layers 4 and electrode 6 in several, mutually stacking between ceramic layer 4, an electrode containing cavity 3 is formed between adjacent ceramic layer, in interior electrode 6 contraposition intercalation electrode containing cavity 6, one end of interior electrode 6 is provided with at least one insulator 2 and is electrically connected through insulator 2 and external electrode 1.The mode of the present embodiment by structure adopting the mode of insulator 2 replace the reserved interior electrode insulation usable floor area of tradition, therefore while this overall volume is reduced, not only can avoid the awkward situation that effective capacitance area ratio is too low, more can reach and increase the effect that effective capacitance area ratio is up to 100%, and then reach lifting internal electrical capacitance and microminiaturized integrally-built object.
Meanwhile, the material of this ceramic layer 4 is barium titanate, but the utility model is not as limit, and can barium titanate be also main component, adding portion impurity element in addition, to help this ceramic layer low-temperature sintering, improves the dielectric constant of this ceramic layer; Its ceramic layer 4 comprises two outer ceramic layers 7 and ceramic layer 5 in several, and play certain protective effect with optimization system, avoid extraneous factor to the interference of built-in system, in the Thickness Ratio of outer ceramic layer 7, the thickness of ceramic layer 5 is thick.The interior electrode 6 of the present embodiment and the material of external electrode 1 are the composite material of copper, silver, aluminium, nickel, gold or metal and barium titanate, but this is practical new not as limit, and the conductor that other conductivity is good or composite material all can be the material of this interior electrode 6 and external electrode 1.
In addition, for further illustrating the capacitor of the present embodiment, be illustrated especially exemplified by an example:
In the present embodiment, when the number of interior electrode 6 is four, therefore this ceramic layer 4 add up to five layers, interior ceramic layer 5 is three layers, and this ceramic layer 4 forms four electrode containing cavities 3 altogether, and from top to bottom sequential gets off; This interior electrode then embeds in each containing cavity 3 successively, and in it, one end of electrode 6 is provided with at least one insulator 2 and is electrically connected through insulator 2 and external electrode 1.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. one kind has the multilayer ceramic capacitor promoting internal electrical capacitance, it comprises capacitor body and external electrode, it is characterized in that: described external electrode is electrically installed on capacitor body both sides, described capacitor body inside is provided with several ceramic layers and electrode in several, mutually stacking between described ceramic layer, an electrode containing cavity is formed between described adjacent ceramic layer, in described interior electrode contraposition intercalation electrode containing cavity, one end of described interior electrode is provided with at least one insulator and is electrically connected through insulator and external electrode.
2. a kind of as claimed in claim 1 have the multilayer ceramic capacitor promoting internal electrical capacitance, it is characterized in that: described ceramic layer comprises two outer ceramic layers and ceramic layer in several, and in the Thickness Ratio of described outer ceramic layer, the thickness of ceramic layer is thick.
3. a kind of as claimed in claim 2 have the multilayer ceramic capacitor promoting internal electrical capacitance, it is characterized in that: the material of described ceramic layer is barium titanate.
4. a kind of as claimed in claim 3 have the multilayer ceramic capacitor promoting internal electrical capacitance, it is characterized in that: the material of described external electrode and interior electrode is copper, silver, aluminium, nickel or gold.
5. a kind of as claimed in claim 4 have the multilayer ceramic capacitor promoting internal electrical capacitance, it is characterized in that: the material of described insulator is silicon dioxide, aluminium oxide or macromolecular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011927.5U CN204270875U (en) | 2015-01-08 | 2015-01-08 | A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011927.5U CN204270875U (en) | 2015-01-08 | 2015-01-08 | A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204270875U true CN204270875U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520011927.5U Expired - Fee Related CN204270875U (en) | 2015-01-08 | 2015-01-08 | A kind of have the multilayer ceramic capacitor promoting internal electrical capacitance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204270875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10418181B2 (en) | 2016-04-20 | 2019-09-17 | Eulex Components Inc | Single layer capacitors |
-
2015
- 2015-01-08 CN CN201520011927.5U patent/CN204270875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10418181B2 (en) | 2016-04-20 | 2019-09-17 | Eulex Components Inc | Single layer capacitors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |