CN208834907U - A kind of lateral grooves ceramic capacitor - Google Patents
A kind of lateral grooves ceramic capacitor Download PDFInfo
- Publication number
- CN208834907U CN208834907U CN201821859636.1U CN201821859636U CN208834907U CN 208834907 U CN208834907 U CN 208834907U CN 201821859636 U CN201821859636 U CN 201821859636U CN 208834907 U CN208834907 U CN 208834907U
- Authority
- CN
- China
- Prior art keywords
- ceramic
- ceramic matrix
- lateral grooves
- capacitor
- ceramic capacitor
- Prior art date
- 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.)
- Active
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A kind of lateral grooves ceramic capacitor, including capacitor ontology, lead and encapsulated layer.The capacitor ontology is made of ceramic matrix, electrode, lateral grooves, and two electrodes are attached on matrix, welding lead on electrode, and encapsulating material wraps up capacitor ontology and part lead.The lateral grooves are the annular vacancy that ceramic capacitor side is outputed, after being encapsulated material encapsulating, the encapsulating material filling that lateral grooves are insulated, electric field line after making ceramic capacitor be powered along ceramic matrix outer surface is encapsulated material truncation, reduce across the arc discharge risk in surface, furthermore lateral grooves can increase the distance between two electrodes along ceramic surface, further reduce surface creepage risk, it is significantly reduced during ceramic capacitor processing procedure because quality fluctuation causes ceramic capacitor surface to improve ceramic capacitor safety and reliability across the risk of arc.
Description
Technical field
The utility model relates to the ceramic capacitors that one kind can play filtering, oscillation, coupling in circuit, especially
There are the ceramic capacitors of groove for a kind of ceramic matrix side.
Background technique
Ceramic capacitor is the capacitor using ceramics as dielectric material, can play blocking, bypass, coupling in circuit
Conjunction, temperature-compensating, transient voltage inhibition, tuning, energy storage, inhibits various effects such as electromagnetic interference at filtering, is nearly all electronics
The necessary basic device of equipment.Breakdown voltage is to measure the important indicator of ceramic capacitor performance, and ceramic capacitor is once sent out
Raw electrical breakdown, generally can concomitant circuit failure, will lead to the danger such as electric shock, fire when serious, can for guarantee ceramic capacitor
It by work, should guarantee not puncture under instantaneous voltage, guarantee not puncture under long-term work voltage again, therefore promoted
Product it is breakdown voltage resistant, be always the target persistently improved in the industry.The instantaneous voltage breakdown of ceramic capacitor is generally divided into two
Kind, one is the practical receiving voltages of capacitor to exceed ceramic matrix proof voltage limit, and strong electrical field causes freely electric in ceramic matrix
Son hits neutral molecule, forms avalanche type electron stream after being allowed to ionization, causes punch through, and such breakdown is generally by ceramic microstructures knot
Structure, dielectric thickness, the factors such as electrode area determine that such breakdown occurs inside ceramic dielectric, belong to normal failure breakdown mode.
Another breakdown mode is across arcing, and in ceramic dielectric sintering, outer surface is located at the interface of ceramics with air, surface
Tension and free energy etc. with the difference of the sintering environment inside ceramics, cause external defects state after sintering more, ceramics
The dielectric strength on surface is less than ceramics inside, and in electrode edge because of electric field distortion, field strength direction can be divided into ceramic capacitor in addition
Two components vertically downward and horizontally outward are easy to the phenomenon that climbing electrical breakdown along ceramic surface occur, and also referred to as arcing punctures,
Breakdown path is generally originated by electrode edge, and breakdown path level extends to ceramic matrix side or self-electrode side along ceramic surface
Edge is through outer arrival ceramic matrix side oblique inside porcelain body, hereafter after electricity is climbed in ceramic matrix side, with intimate symmetrical path
Reach another electrode edge.The bad form in processing procedure, sintering, welding tining, ceramic matrix surface are typically belonged to across arcing
Each processing procedure process such as breakage, encapsulating material gap occurs abnormal, easily leads to across arcing generation, need in the industry one kind can reduce because
Processing procedure is abnormal and the ceramic capacitor across arcing risk occurs.
Utility model content
The utility model technical problem to be solved is to provide a kind of horizontal ceramic condenser that meet national standards of proof voltage
Device, it can effectively reduce across arc discharge risk, promote the safety of ceramic capacitor.
The utility model solves technical solution used by prior art problem: a kind of ceramic capacitor comprising have
Capacitor ontology, first lead, the second lead, encapsulated layer, the cylindrical body ceramics that the capacitor ontology is made of ceramic dielectric material
Matrix, ceramic matrix side groove and be attached on ceramic matrix first electrode, second electrode composition, first lead welding
On the first electrode, on the second electrode, encapsulated layer wraps up capacitor ontology and part lead, ceramic base side to the welding of the second lead
The groove in face is along ceramic matrix side to the annular vacancy outputed inside ceramic matrix, and ceramic matrix side is smooth ring
Shape face, annular surface with waves one kind.
Further, the section of the ceramic matrix lateral grooves is rectangle, semicircle, one kind of half elliptic.
Further, the quantity of the ceramic matrix lateral grooves is 1-200 item.
Further, in the section of the ceramic matrix lateral grooves, it is located at innermost point and position inside ceramic matrix
In the distance of the outermost point in ceramic matrix side in the horizontal direction be 0.01-5 millimeters.
Ceramic capacitor surface creepage is mainly caused by two factors jointly, and one is ceramic surface resistivity lower than ceramics
Internal resistance rate, one is when applying voltage, and the electric field at ceramic capacitor electrode edge can instead give birth to distortion, direction of an electric field be not
At electrode vertically downward, it is directed on the outside of electrode, electric field line reaches other side electrode edge, electricity to be similar to the path of camber line
Field wire path is approximate with external surface shape, exists and across arcing hidden danger occurs, when being mingled with processing procedure abnormal factors, as sintering is led
Cause surface resistivity is abnormal, ceramic matrix marginal density is relatively low, electrode deviation causes surface insulation distance to shorten, encapsulating material solidification
Bad situations such as leading to encapsulating material non-tight ceramic matrix surface, easily occur across arcing.The utility model uses
The method that groove is outputed in ceramic matrix side, after being encapsulated material encapsulating, the encapsulating material filling insulated inside lateral grooves makes electricity
Field wire is extended into the truncation of the encapsulating material inside ceramic matrix along the path of ceramic side, and the electric field line along outer surface, which need to puncture, to be protruded into
Encapsulating material can reach another electrode, this structure effectively increases the insulation performance along ceramic matrix surface, in addition, using recessed
After the structure of slot, the ceramic plane of inside grooves also corresponds to the outer surface of ceramic matrix, this structure increases between two electrodes
Along the distance of ceramic surface, surface creepage risk is further reduced, the utility model can effectively reduce surface creepage risk, increase
The big safety of ceramic capacitor.
Compared with the prior art, the utility model has the beneficial effect that the utility model uses the knot of ceramic matrix lateral grooves
Structure protrudes into the cured form of groove by encapsulating material, be truncated ceramic capacitor apply voltage after along ceramic matrix surface electricity
Field wire path can effectively reduce surface creepage risk, furthermore pass through the structure of groove, it is possible to increase along ceramic matrix surface between electrode
Distance, be conducive to be further reduced surface creepage risk, ensure that ceramic capacitor proof voltage level meets national standard, subtract
Quality fluctuation causes ceramic capacitor surface to improve ceramic capacitor across the risk of arc during small ceramic capacitor processing procedure
Safety and reliability.
Detailed description of the invention
Fig. 1 is a kind of lateral grooves ceramic capacitor structure schematic diagram of the utility model.
Fig. 2 is a kind of lateral grooves ceramic capacitor capacitor ontology front elevation of the utility model.
Fig. 3 is a kind of capacitor ontology sectional view that the side of lateral grooves ceramic capacitor is smooth of the utility model.
Fig. 4 is that a kind of side of lateral grooves ceramic capacitor of the utility model has this body section of the capacitor of waves
Figure.
Specific embodiment
The specific embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings:
Embodiment 1, referring to shown in attached drawing 1,2,3, the utility model relates to a kind of lateral grooves ceramic capacitor, packet
Capacitor ontology 001 is included, first lead 201, the second lead 202, encapsulated layer 003, capacitor ontology 001 is by cylindrical ceramic base
Body 101, the groove 102 of 101 side of ceramic matrix, the first electrode 301 being attached on ceramic matrix 101,302 groups of second electrode
At first lead 201 is welded in first electrode 301, and the second lead 202 is welded in second electrode 302, and encapsulated layer 003 wraps
Wrap up in capacitor ontology 001, encapsulated layer 003 wraps up a part of 201 second lead 202 of first lead, 101 side of ceramic matrix it is recessed
Slot 102 is along ceramic matrix side 103 to the cyclic annular vacancy outputed inside ceramic matrix, and ceramic matrix side 103 is smooth
Annular surface, the section of ceramic matrix lateral grooves 102 is rectangle, and the quantity of ceramic matrix lateral grooves 102 is 1, pottery
In the section of porcelain basal body lateral grooves 102, it is located at the 101 innermost point in inside of ceramic matrix and is located at ceramic matrix side 103
The distance a of outermost point in the horizontal direction is 1 millimeter.
Embodiment 2, referring to shown in attached drawing 4, in the present embodiment, a kind of lateral grooves ceramic capacitor is in the area of embodiment 1
Be not: the ceramic matrix side 103 is the annular surface with waves, and ceramic matrix lateral grooves 102 are cut
Face is half elliptic, and the quantity of ceramic matrix lateral grooves 102 is 2, in the section of ceramic matrix lateral grooves 102, is located at
Distance a is the 101 innermost point in inside of ceramic matrix in the horizontal direction with the outermost point in ceramic matrix side 103 is located at
2 millimeters.
The foregoing is merely the better embodiment of the utility model, the protection scope of the utility model is not with above-mentioned reality
The mode of applying is limited.
Claims (4)
1. a kind of lateral grooves ceramic capacitor, which is characterized in that include capacitor ontology, first lead, the second lead, encapsulating
Layer, the groove of cylindrical body ceramic matrix, ceramic matrix side that the capacitor ontology is made of ceramic dielectric material and is attached to
First electrode, second electrode composition on ceramic matrix, first lead are welded on the first electrode, and the second lead is welded on second
On electrode, encapsulated layer wraps up capacitor ontology and part lead, and the groove of ceramic matrix side is along ceramic matrix side to pottery
The annular vacancy outputed inside porcelain basal body, ceramic matrix side are smooth annular surface, the annular surface with waves
It is a kind of.
2. a kind of lateral grooves ceramic capacitor according to claim 1, which is characterized in that the ceramic matrix side
The section of groove is rectangle, semicircle, one kind of half elliptic.
3. a kind of lateral grooves ceramic capacitor according to claim 1, which is characterized in that the ceramic matrix side
The quantity of groove is 1-200 item.
4. a kind of lateral grooves ceramic capacitor according to claim 1, which is characterized in that the ceramic matrix side is recessed
In the section of slot, it is located at innermost point inside ceramic matrix and is located at the outermost point in ceramic matrix side in the horizontal direction
Distance be 0.01-5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859636.1U CN208834907U (en) | 2018-11-13 | 2018-11-13 | A kind of lateral grooves ceramic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859636.1U CN208834907U (en) | 2018-11-13 | 2018-11-13 | A kind of lateral grooves ceramic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834907U true CN208834907U (en) | 2019-05-07 |
Family
ID=66320004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821859636.1U Active CN208834907U (en) | 2018-11-13 | 2018-11-13 | A kind of lateral grooves ceramic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739152A (en) * | 2019-10-22 | 2020-01-31 | 暄泰电子(苏州)有限公司 | platform type ceramic chip mechanism |
-
2018
- 2018-11-13 CN CN201821859636.1U patent/CN208834907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739152A (en) * | 2019-10-22 | 2020-01-31 | 暄泰电子(苏州)有限公司 | platform type ceramic chip mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109038221B (en) | There is the active overvoltage protection gap of plug function under gaseous environment | |
| CN208834907U (en) | A kind of lateral grooves ceramic capacitor | |
| CN203367022U (en) | Chip-type solid electrolytic tantalum capacitor | |
| CN106782957A (en) | A kind of compound MOV components with discharging structure | |
| CN109950013A (en) | A kind of ceramic chip and piezoresistor | |
| CN207134172U (en) | A kind of compound MOV for inserting GDT | |
| CN216082992U (en) | Surface flashover discharge insulator sample | |
| CN203444987U (en) | AC high-voltage high-pulse thin film capacitor | |
| JP6157587B2 (en) | Surge voltage arrester | |
| CN205354990U (en) | Lead and press explosion -proof ware | |
| CN207353092U (en) | A kind of tubulose high voltage ceramic capacitor with umbrella skirt construction | |
| CN209216798U (en) | A kind of self-healing capacitor component and a kind of capacitor | |
| CN202839526U (en) | Low impact flashover voltage gas discharge tube | |
| CN207852478U (en) | A kind of cup type high voltage ceramic capacitor | |
| CN102891057A (en) | Gas discharging tube with low impact puncture voltage | |
| CN103077790B (en) | A kind of low electric capacity lamination cake core rheostat and the over voltage protector used thereof | |
| CN204230236U (en) | Electrostatic protector | |
| CN204991191U (en) | A wire for dry -type transformer | |
| CN104377551A (en) | Gas discharge tube with trigger electrodes | |
| CN204230633U (en) | A kind of gas discharge tube with trigger electrode | |
| CN206282670U (en) | Rural power grids 10kV lightning protection needle type composite insulators | |
| CN213583518U (en) | Ceramic capacitor chip | |
| CN202650770U (en) | All-insulated cable ceramic bushing for oil immersed transformer | |
| CN107680804A (en) | A kind of tubulose high voltage ceramic capacitor with umbrella skirt construction | |
| KR20190017598A (en) | MLCC having high ESD withstanding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |