CN2768168Y - Ceramic capacitor with multilayer piece type structure for middle, high voltage - Google Patents
Ceramic capacitor with multilayer piece type structure for middle, high voltage Download PDFInfo
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- CN2768168Y CN2768168Y CN 200420121007 CN200420121007U CN2768168Y CN 2768168 Y CN2768168 Y CN 2768168Y CN 200420121007 CN200420121007 CN 200420121007 CN 200420121007 U CN200420121007 U CN 200420121007U CN 2768168 Y CN2768168 Y CN 2768168Y
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Abstract
The utility model relates to a ceramic capacitor with multilayer piece type structure for middle and high voltage and relates to the technical field of ceramic capacitors. The utility model comprises a plurality of dielectric layers made of ceramic material, and outer electrodes on both ends, wherein the dielectric layers are provided with two types of forms of internal electrodes, wherein internal electrodes of the first type of the dielectric layers are two small rectangles which are arranged at intervals, and the external periphery of the internal electrode 1 is connected with the outer electrodes on both ends. The internal electrode 2 of the second type of the dielectric layers forms a big rectangle on the position corresponding to the printing position of the two small rectangles of the internal electrode 1. The ceramic capacitor has the structural characteristics that the ceramic capacitor also comprises the third type of dielectric layers with the form of internal electrodes, and the internal electrodes in the third type of the dielectric layers form two frame type quadrangles. The internal electrode 3 is on the position corresponding to the printing coating positions of the internal electrode 1 and the internal electrode 2; the third type of the dielectric layers is arranged between the first type of the dielectric layers and the second type of the dielectric layers and the three types of the dielectric layers are overlapped in order. Compared with the prior art, the ceramic capacitor has the advantage that the anti-electric breakdown strength can be improved greatly without changing the external dimension of the ceramic capacitor.
Description
Technical field
The utility model relates to the ceramic capacitor technical field, particularly is applicable to the ceramic capacitor of the monolithic multilayer structure of the high voltage appearance of rated voltage more than direct current 250V.
Background technology
Making the high-voltage capacitor technical field, two important techniques indexs must consider, the one, and the size of capacitor, the 2nd, the anti-electric breakdown strength of capacitor.Though can produce very undersized capacitor now, under the condition that does not increase overall dimension, the anti-high-voltage breakdown intensity of wanting to improve them is but very difficult.The structure of the ceramic capacitor of mesohigh monolithic multilayer structure commonly used adopts ceramic material to make in the prior art, with the severals multi-disc dielectric layers and the two ends external electrode composition of electrode form in two types.Wherein the interior electrode of a class dielectric layer is two little rectangles, interval Boulez and the outward flange of electrode one in each is connected with the two ends external electrode respectively, and it is corresponding with the printing position of two little rectangles of interior electrode one that the interior electrode two of two class dielectric layers is a large rectangle.Several multi-disc dielectric layers of above-mentioned two classes are superposeed successively and form whole ceramic capacitor, as shown in Figure 1.The fringe field distribution schematic diagram of the ceramic capacitor of this monolithic multilayer structure, as shown in Figure 2.Because the distortion of the fringe field in each layer between the electrode is so the shortcoming of this type of ceramic condenser in application is that anti-electric breakdown strength is not ideal enough, can not satisfy the high speed development of electronic technology field.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the purpose of this utility model provides a kind of ceramic capacitor that is applicable to the monolithic multilayer structure of high voltage appearance, it can be implemented in the condition that does not increase the overall dimension of capacitor substantially, the anti-high-voltage breakdown intensity of raising by a relatively large margin.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes as follows:
The ceramic capacitor of mesohigh monolithic multilayer structure, it comprise make with ceramic material, with the several multi-disc dielectric layers and the two ends external electrode of electrode form in two types.Wherein the interior electrode one of a class dielectric layer is two little rectangles, interval Boulez and the outward flange of electrode one in each is connected with the two ends external electrode respectively, and it is corresponding with the printing position of two little rectangles of interior electrode one that the interior electrode two of two class dielectric layers is a large rectangle.Its design feature is, it also comprises the dielectric layer of electrode form in the third type, and the interior electrode three of three class dielectric layers is two frame quadrangles.Interior electrode three is corresponding with the printed coating position of interior electrode one and interior electrode two, and three class dielectric layers place between a class dielectric layer and the two class dielectric layers and make above-mentioned three classes count the multi-disc dielectric layer and superpose successively.
In above-mentioned ceramic capacitor, the corner of described interior electrode one, interior electrode two and interior electrode three is fillet or arc shape.
The utility model is owing to adopted above-mentioned structure, the dielectric layer of electrode in original two kinds of dielectric layers, having added with two frame quadrangles, its effect be the power line of the corresponding part in edge of the interior electrode on can keeping in original two kinds of dielectric layers perpendicular to electrode printing surface in each or each medium aspect, and make it homogenizing.Therefore, can significantly reduce because the chance of breakdown that the fringe field distortion of interior electrode is caused.In addition, the entity area of electrode is very little in the frame quadrangle, the area that directly joins of ceramic dielectric is not subjected to very big influence between each dielectric layer, therefore do not hinder the combination between each dielectric layer, the problem that each dielectric layer breaks away from mutually in the time of can not appearing at sintering does not change the monnolithic case size simultaneously.Compare with prior art, the utlity model has under the prerequisite that does not change ceramic capacitor overall dimension, can improve the advantage of anti-electric breakdown strength greatly.
Below in conjunction with accompanying drawing and concrete execution mode the utility model is described further.
Description of drawings
Fig. 1 is the agent structure schematic diagram of prior art ceramic capacitor;
Fig. 2 is the fringe field distribution schematic diagram of prior art ceramic capacitor;
Fig. 3 is an agent structure schematic diagram of the present utility model;
Fig. 4 is a structural profile schematic diagram of the present utility model;
Fig. 5 is a fringe field distribution schematic diagram of the present utility model.
Embodiment
Referring to Fig. 3 and Fig. 4, the utility model ceramic capacitor comprise make with ceramic material, with the several multi-disc media and the two ends external electrode of electrode form in three types.Wherein the interior electrode 1 of a class dielectric layer 1 is two little rectangles, interval Boulez and the outward flange of electrode 1 in each is connected with the two ends external electrode respectively; It is corresponding with the printing position of two little rectangles of interior electrode 1 that the interior electrode 24 of two class dielectric layers 3 is a large rectangle; The interior electrode 36 of three class dielectric layers 5 is two frame quadrangles, and interior electrode 36 is corresponding with the printed coating position of interior electrode 1 and interior electrode 24.Three class dielectric layers 5 place between a class dielectric layer 1 and the two class dielectric layers 3 and make above-mentioned three classes count the multi-disc dielectric layer and superpose successively, and the corner of interior electrode 1, interior electrode 24 and interior electrode 36 is fillet or arc shape.
The utility model in use, by test experience as can be known, its fringe field distortion can overcome substantially.The power line of the edge appropriate section of electrode is perpendicular in each between the electrode printing surface, as shown in Figure 5 in each dielectric layer.Therefore, the utility model has improved anti-electric breakdown strength greatly.
Claims (2)
1, the ceramic capacitor of mesohigh monolithic multilayer structure, it comprises makes with ceramic material, several multi-disc dielectric layers and two ends external electrode with electrode form in two types, wherein the interior electrode one (2) of a class dielectric layer (1) is two little rectangles, the interval Boulez also is connected the outward flange of electrode one (2) in each respectively with the two ends external electrode, it is corresponding with the printing position of two little rectangles of interior electrode one (2) that the interior electrode two (4) of two class dielectric layers (3) is a large rectangle, it is characterized in that, it also comprises the dielectric layer of electrode form in the third type, the interior electrode three (6) of three class dielectric layers (5) is two frame quadrangles, interior electrode three (6) is corresponding with the printed coating position of interior electrode one (2) and interior electrode two (4), and three class dielectric layers (5) place between a class dielectric layer (1) and the two class dielectric layers (3) and make above-mentioned three classes count the multi-disc dielectric layer and superpose successively.
According to the described ceramic capacitor of claim 1, it is characterized in that 2, the corner of described interior electrode one (2), interior electrode two (4) and interior electrode three (6) is fillet or arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121007 CN2768168Y (en) | 2004-12-29 | 2004-12-29 | Ceramic capacitor with multilayer piece type structure for middle, high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420121007 CN2768168Y (en) | 2004-12-29 | 2004-12-29 | Ceramic capacitor with multilayer piece type structure for middle, high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768168Y true CN2768168Y (en) | 2006-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420121007 Expired - Fee Related CN2768168Y (en) | 2004-12-29 | 2004-12-29 | Ceramic capacitor with multilayer piece type structure for middle, high voltage |
Country Status (1)
| Country | Link |
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| CN (1) | CN2768168Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114974895A (en) * | 2022-06-30 | 2022-08-30 | 天津市哈德布莱特科技发展有限公司 | MLCC and SLC-based multilayer ceramic binary capacitor and capacitor adjusting method |
-
2004
- 2004-12-29 CN CN 200420121007 patent/CN2768168Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114974895A (en) * | 2022-06-30 | 2022-08-30 | 天津市哈德布莱特科技发展有限公司 | MLCC and SLC-based multilayer ceramic binary capacitor and capacitor adjusting method |
| CN114974895B (en) * | 2022-06-30 | 2024-01-23 | 天津市哈德布莱特科技发展有限公司 | Multilayer ceramic binary capacitor based on MLCC and SLC and capacitor adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGFANG CO., LTD. Free format text: FORMER NAME OR ADDRESS: TSINGHUA TONGFANG CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Patentee after: Tongfang Co., Ltd. Address before: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Patentee before: Qinghua Tongfang Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20101229 |