CN203673969U - Ceramic shell-free cross-core filter capacitor - Google Patents
Ceramic shell-free cross-core filter capacitor Download PDFInfo
- Publication number
- CN203673969U CN203673969U CN201420035316.XU CN201420035316U CN203673969U CN 203673969 U CN203673969 U CN 203673969U CN 201420035316 U CN201420035316 U CN 201420035316U CN 203673969 U CN203673969 U CN 203673969U
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- ceramic
- circular ring
- metal conducting
- filter capacitor
- ceramic circular
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Abstract
The utility model relates to a filter capacitor, and particularly relates to a ceramic shell-free cross-core filter capacitor. The ceramic shell-free cross-core filter capacitor includes a ceramic circular ring, the two end faces of the ceramic circular ring are coated by metal conducting layers, the circumferential edges of the outer ring of the ceramic circular ring and the inner ring of the ceramic circular ring are coated by insulating layers, and the metal conducting layers coat between the insulating layers of the circumferential edges of the outer ring of the ceramic circular ring and the inner ring of the ceramic circular ring. By adopting such a structure that the insulted edges of the outer ring of the ceramic circular ring and the inner ring of the ceramic circular ring are coated by the insulating layers and the metal conducting layers, the prevention of current from reaching to the lower metal conducting layer by passing by the side wall of the ceramic circular ring from the edge of the upper metal conducting layer can be realized, so that the problem that effects of filtering in a circuit of a capacitor in the prior art are completely ineffective when the two metal conducting layers are conducted can be prevented, and the normal and efficient use of the capacitor is guaranteed; and moreover, the manufacturing cost for coating insulating varnish on the ceramic circular ring is low, and the capacitor is suitable for mass production.
Description
Technical field
The utility model relates to a kind of filter capacitor, and particularly a kind of pottery is without shell punching filter capacitor.
Background technology
Filter electric capacity used is generally ceramic condenser, and due to its physical structure, this ceramic condenser is called again punching electric capacity, the more common electric capacity of punching electric capacity is much smaller, so self-resonant frequency is very high, meanwhile, also effectively prevent that high-frequency signal is directly coupled to output from input.
Electric capacity is to be made up of the pole plate at two ends and middle megohmite insulant, and after energising, pole plate band electric forming voltage (electrical potential difference), due to middle megohmite insulant, so whole electric capacity is nonconducting.But, because ceramic condenser size is less, thinner thickness, be that between the pole plate at megohmite insulant two ends, distance is very little, when use, as shown in Figure 1, electric current is easily walked around megohmite insulant and is arrived bottom crown from the edge of electric capacity top crown, make conducting between two pole plates, electric capacity is the effect such as filtering complete failure in circuit.
Summary of the invention
The utility model technical issues that need to address are to provide a kind of pottery without shell punching filter capacitor, and this filter capacitor production cost is low, the normal use of energy strong guarantee electric capacity, suitable wideling popularize.
For solving above-mentioned technical problem, a kind of pottery of the present utility model, without shell punching filter capacitor, comprises ceramic annulus, and the both ends of the surface of ceramic annulus scribble metal conducting layer; The circumferential edges of described ceramic annulus outer ring and ceramic annulus inner ring scribbles insulating barrier; Described metal conducting layer is coated between ceramic annulus inner ring circumferential edges and the insulating barrier of ceramic annulus outer ring circumferential edges.
Further, the material of described metal conducting layer is silver.
Further, the diameter of described ceramic annulus outer ring is 8～30mm.
Further, the diameter of described ceramic annulus inner ring is 3～10mm.
Further, the height of described ceramic annulus is 1～3.5mm.
Adopt after said structure, by coating insulating barrier and metal conducting layer at ceramic annulus outer ring and the ceramic annulus inner ring edge of insulation, the sidewall that has effectively stoped electric current to walk around ceramic annulus from the edge of upper metal conducting layer arrives lower metal conducting layer, avoid conducting between two metal conducting layers, the problem of the electric capacity effect such as filtering complete failure in circuit, ensured the use normally and efficiently of electric capacity, and it is low on ceramic annulus, to be coated with the processing cost of insulating varnish, suitable production in enormous quantities.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
In figure: 1 is ceramic annulus, 2 is metal conducting layer, and 3 is insulating barrier,
Embodiment
As shown in Figure 2, a kind of pottery of the present utility model, without shell punching filter capacitor, comprises ceramic annulus 1, and wherein, the height of ceramic annulus 1 is 1～3.5mm; The both ends of the surface of pottery annulus 1 scribble metal conducting layer 2; The circumferential edges of described ceramic annulus 1 outer ring and inner ring scribbles insulating barrier 3, and in the present embodiment, insulating barrier 3 is insulating varnish; The diameter of pottery annulus 1 outer ring is 8～30mm, and the diameter of ceramic annulus 1 inner ring is 3～10mm; Described metal conducting layer 2 is coated between inner ring circumferential edges and the insulating barrier 3 of outer ring circumferential edges.
Further, the material of described metal conducting layer 2 is silver, and the conducting function of silver is strong, has ensured the high-quality of filter capacitor.
The above; it is only embodiment of the present utility model; protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claim was defined.
Claims (5)
1. pottery, without a shell punching filter capacitor, comprises ceramic annulus, and the both ends of the surface of ceramic annulus scribble metal conducting layer, it is characterized in that: the circumferential edges of described ceramic annulus outer ring and ceramic annulus inner ring scribbles insulating barrier; Described metal conducting layer is coated between ceramic annulus inner ring circumferential edges and the insulating barrier of ceramic annulus outer ring circumferential edges.
2. pottery according to claim 1, without shell punching filter capacitor, is characterized in that: the material of described metal conducting layer is silver.
3. pottery according to claim 1, without shell punching filter capacitor, is characterized in that: the diameter of described ceramic annulus outer ring is 8～30mm.
4. pottery according to claim 1, without shell punching filter capacitor, is characterized in that: the diameter of described ceramic annulus inner ring is 3～10mm.
5. pottery according to claim 1, without shell punching filter capacitor, is characterized in that: the height of described ceramic annulus is 1～3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035316.XU CN203673969U (en) | 2014-01-20 | 2014-01-20 | Ceramic shell-free cross-core filter capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035316.XU CN203673969U (en) | 2014-01-20 | 2014-01-20 | Ceramic shell-free cross-core filter capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673969U true CN203673969U (en) | 2014-06-25 |
Family
ID=50970236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420035316.XU Expired - Fee Related CN203673969U (en) | 2014-01-20 | 2014-01-20 | Ceramic shell-free cross-core filter capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117727560A (en) * | 2024-02-18 | 2024-03-19 | 成都宏科电子科技有限公司 | Single-layer through ceramic capacitor chip with controllable insulation distance |
-
2014
- 2014-01-20 CN CN201420035316.XU patent/CN203673969U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117727560A (en) * | 2024-02-18 | 2024-03-19 | 成都宏科电子科技有限公司 | Single-layer through ceramic capacitor chip with controllable insulation distance |
| CN117727560B (en) * | 2024-02-18 | 2024-04-19 | 成都宏科电子科技有限公司 | Single-layer through ceramic capacitor chip with controllable insulation distance |
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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: 20140625 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |