CN110931253B - Ceramic capacitor assembly - Google Patents
Ceramic capacitor assembly Download PDFInfo
- Publication number
- CN110931253B CN110931253B CN201911363727.5A CN201911363727A CN110931253B CN 110931253 B CN110931253 B CN 110931253B CN 201911363727 A CN201911363727 A CN 201911363727A CN 110931253 B CN110931253 B CN 110931253B
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- Prior art keywords
- metal
- polar plate
- polar
- ceramic
- ceramic capacitor
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- 239000003985 ceramic capacitor Substances 0.000 title claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920001567 vinyl ester resin Polymers 0.000 claims description 4
- 229920004933 Terylene® Polymers 0.000 claims description 3
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 claims description 3
- 229910001632 barium fluoride Inorganic materials 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 15
- 230000007547 defect Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/08—Inorganic dielectrics
- H01G4/12—Ceramic dielectrics
- H01G4/1209—Ceramic dielectrics characterised by the ceramic dielectric material
- H01G4/1218—Ceramic dielectrics characterised by the ceramic dielectric material based on titanium oxides or titanates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/224—Housing; Encapsulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a ceramic capacitor assembly which comprises a first polar plate and a second polar plate which are oppositely arranged, wherein a ceramic inner core is arranged between the first polar plate and the second polar plate, the outer side of the ceramic inner core is wrapped by an insulating shell, a plurality of metal polar plates are annularly distributed on the first polar plate, a metal electrode is arranged at the center of the second polar plate, a plurality of through holes are uniformly formed in the metal polar plates, grooves which correspond to the metal polar plates one to one are formed in the metal electrode, and the grooves are formed in the axial direction of the metal electrode. The invention can improve the defects of the prior art and improve the withstand voltage value of the capacitor.
Description
Technical Field
The invention relates to an electrical element, in particular to a ceramic capacitor component.
Background
A capacitor is a common electrical component. The voltage withstanding level of the capacitor is an important performance parameter of the capacitor, and how to adjust the voltage withstanding level of the capacitor under the premise of effectively controlling the cost becomes a research hotspot in the field.
Disclosure of Invention
The invention aims to provide a ceramic capacitor assembly, which can overcome the defects of the prior art and improve the voltage withstanding value of a capacitor.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
The utility model provides a ceramic capacitor subassembly, is provided with the ceramic inner core including relative first polar plate and the second polar plate that sets up between first polar plate and the second polar plate, and the outside parcel of ceramic inner core has insulating casing, a plurality of metal polar plate has arranged in the annular on the first polar plate, and the center of second polar plate is provided with metal electrode, has evenly seted up a plurality of through-hole on the metal polar plate, has seted up on the metal electrode with the logical groove of metal polar plate one-to-one, leads to the groove and sets up along metal electrode's axial.
Preferably, the number of the metal pole plates is 6, and the width of the metal pole plates is 15% of the diameter of the ceramic core.
Preferably, the metal electrode plate and the metal electrode are wrapped by insulating layers.
Preferably, the insulating layer is made of terylene.
Preferably, a metal grid is arranged in the insulating shell.
Preferably, the heat-conducting core columns are filled in the gaps of the metal grid plates, grooves which correspond to the heat-conducting core columns one by one are formed in the outer side faces of the ceramic inner cores, and the bottom faces of the heat-conducting core columns are located in the grooves.
Preferably, the ceramic core comprises 45wt% lithium carbonate, 20wt% barium titanate, 11.5wt% zinc oxide, 4.5wt% barium fluoride, 4wt% titanium dioxide, 0.75wt% glass fiber, and the balance vinyl ester resin.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention improves the electric field distribution uniformity in the ceramic medium by reasonably arranging the electrodes and the polar plates in the ceramic medium, thereby avoiding the occurrence of local high voltage and improving the voltage resistance of the capacitor, and the insulating layer is used for protecting the ceramic inner core. Due to the installation of the electrodes and the polar plates, the ceramic dielectric is more subjected to external electromagnetic interference. In order to reduce the influence of electromagnetic interference on the capacitor, the electromagnetic interference is isolated by arranging the metal grid plate at the outer side. Because the metal grid plate is provided with a large number of gaps, the heat-conducting core column is arranged in the gaps, so that the heat dissipation performance of the capacitor can be effectively improved under the condition that the volume of the capacitor is not increased, and the influence on the capacitance due to temperature rise is reduced. The heat conduction stem core is matched with the ceramic inner core through the groove, so that the length of the heat conduction stem core can be increased, the heat dissipation effect is improved, and the firmness of the whole capacitor structure can be improved simultaneously through the inserting structure. In order to further improve the voltage resistance of the capacitor, the invention improves the components of the ceramic inner core, effectively improves the breakdown voltage level of the capacitor, and simultaneously utilizes the polymerization reinforcement of the glass fiber and vinyl ester resin on the ceramic base material, and effectively improves the shock resistance of the ceramic inner core.
Drawings
FIG. 1 is a block diagram of one embodiment of the present invention.
Fig. 2 is a sectional view taken in the direction of a-a in fig. 1.
In the figure: 1. a first electrode plate; 2. a second polar plate; 3. a ceramic inner core; 4. a metal plate; 5. a metal electrode; 6. a through hole; 7. a through groove; 8. an insulating layer; 9. a metal grid plate; 10. a thermally conductive core column; 11. a groove; 12. an insulating housing.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Referring to fig. 1-2, a specific embodiment of the present invention includes a first polar plate 1 and a second polar plate 2 which are oppositely disposed, a ceramic inner core 3 is disposed between the first polar plate 1 and the second polar plate 2, an insulating housing 12 is wrapped on an outer side of the ceramic inner core 3, a plurality of metal polar plates 4 are annularly arranged on the first polar plate 1, a metal electrode 5 is disposed at a center of the second polar plate 2, a plurality of through holes 6 are uniformly disposed on the metal polar plates 4, through grooves 7 corresponding to the metal polar plates 4 one by one are disposed on the metal electrode 5, and the through grooves 7 are disposed along an axial direction of the metal electrode 5. The number of the metal pole plates 4 is 6, and the width of the metal pole plates 4 is 15% of the diameter of the ceramic inner core 3. The outer sides of the metal pole plate 4 and the metal electrode 5 are wrapped with insulating layers 8. The insulating layer 8 is made of terylene. A metal grid 9 is provided within the insulating housing 12. The gaps of the metal grid plates 9 are filled with heat-conducting core columns 10, grooves 11 which correspond to the heat-conducting core columns 10 one by one are formed in the outer side faces of the ceramic inner cores 3, and the bottom faces of the heat-conducting core columns 10 are located in the grooves 11. The ceramic core 3 comprises 45wt% of lithium carbonate, 20wt% of barium titanate, 11.5wt% of zinc oxide, 4.5wt% of barium fluoride, 4wt% of titanium dioxide, 0.75wt% of glass fiber, and the balance of vinyl ester resin.
The capacitor provided by the invention has low cost and strong durability, and can improve the withstand voltage value by about 15% compared with the capacitor with the same size and model.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a ceramic capacitor subassembly, is provided with ceramic inner core (3) including relative first polar plate (1) and second polar plate (2) that set up between first polar plate (1) and second polar plate (2), and the outside parcel of ceramic inner core (3) has insulating casing (12), its characterized in that: a plurality of metal polar plates (4) are annularly arranged on the first polar plate (1), a metal electrode (5) is arranged at the center of the second polar plate (2), a plurality of through holes (6) are uniformly formed in the metal polar plates (4), through grooves (7) which correspond to the metal polar plates (4) one to one are formed in the metal electrode (5), and the through grooves (7) are formed in the axial direction of the metal electrode (5).
2. The ceramic capacitor assembly of claim 1, wherein: the number of the metal pole plates (4) is 6, and the width of each metal pole plate (4) is 15% of the diameter of the ceramic inner core (3).
3. The ceramic capacitor assembly of claim 2, wherein: and the outer sides of the metal polar plate (4) and the metal electrode (5) are wrapped with insulating layers (8).
4. A ceramic capacitor assembly as claimed in claim 3, wherein: the insulating layer (8) is made of terylene.
5. The ceramic capacitor assembly of claim 1, wherein: and a metal grid plate (9) is arranged in the insulating shell (12).
6. The ceramic capacitor assembly of claim 5, wherein: the heat conduction core column (10) is filled in the gap of the metal grid plate (9), grooves (11) which are in one-to-one correspondence with the heat conduction core columns (10) are formed in the outer side face of the ceramic inner core (3), and the bottom face of the heat conduction core column (10) is located in the grooves (11).
7. The ceramic capacitor assembly of claim 1, wherein: the ceramic inner core (3) comprises 45wt% of lithium carbonate, 20wt% of barium titanate, 11.5wt% of zinc oxide, 4.5wt% of barium fluoride, 4wt% of titanium dioxide, 0.75wt% of glass fiber and the balance of vinyl ester resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363727.5A CN110931253B (en) | 2019-12-26 | 2019-12-26 | Ceramic capacitor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363727.5A CN110931253B (en) | 2019-12-26 | 2019-12-26 | Ceramic capacitor assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110931253A CN110931253A (en) | 2020-03-27 |
| CN110931253B true CN110931253B (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911363727.5A Active CN110931253B (en) | 2019-12-26 | 2019-12-26 | Ceramic capacitor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110931253B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937096A (en) * | 1987-07-23 | 1990-06-26 | Murata Manufacturing Co., Ltd. | Manufacturing method for a ceramic capacitor |
| US6307729B1 (en) * | 1998-08-07 | 2001-10-23 | Kabushiki Kaisha Meidensha | Vacuum capacitor |
| CN102034607A (en) * | 2010-03-27 | 2011-04-27 | 陈清国 | High frequency high voltage capacitor and preparation method thereof |
| CN205564538U (en) * | 2016-04-27 | 2016-09-07 | 淮安市菲力特电子有限公司 | Novel thin -film capacitor |
| CN107492447A (en) * | 2017-08-01 | 2017-12-19 | 成都菲奥特科技有限公司 | The preparation method of filter connector multi-layer plate-type ceramics through condenser chip |
| CN107680804A (en) * | 2017-09-26 | 2018-02-09 | 北京智罗盘智能电气有限公司 | A kind of tubulose high voltage ceramic capacitor with umbrella skirt construction |
-
2019
- 2019-12-26 CN CN201911363727.5A patent/CN110931253B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937096A (en) * | 1987-07-23 | 1990-06-26 | Murata Manufacturing Co., Ltd. | Manufacturing method for a ceramic capacitor |
| US6307729B1 (en) * | 1998-08-07 | 2001-10-23 | Kabushiki Kaisha Meidensha | Vacuum capacitor |
| CN102034607A (en) * | 2010-03-27 | 2011-04-27 | 陈清国 | High frequency high voltage capacitor and preparation method thereof |
| CN205564538U (en) * | 2016-04-27 | 2016-09-07 | 淮安市菲力特电子有限公司 | Novel thin -film capacitor |
| CN107492447A (en) * | 2017-08-01 | 2017-12-19 | 成都菲奥特科技有限公司 | The preparation method of filter connector multi-layer plate-type ceramics through condenser chip |
| CN107680804A (en) * | 2017-09-26 | 2018-02-09 | 北京智罗盘智能电气有限公司 | A kind of tubulose high voltage ceramic capacitor with umbrella skirt construction |
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| Publication number | Publication date |
|---|---|
| CN110931253A (en) | 2020-03-27 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211102 Address after: 515031 first floor, No. 9 (plant), Yujin Middle Road, Zhujin Industrial Zone, Taishan Road, Longhu District, Shantou City, Guangdong Province Applicant after: Shantou Zhenxin Electronics Co.,Ltd. Address before: 124117 Sanhe Village Post Office, Shaling Town, Panjin County, Liaoning Province Applicant before: Zhang Chao |
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| GR01 | Patent grant |