DE3004282A1 - Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry - Google Patents

Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry

Info

Publication number
DE3004282A1
DE3004282A1 DE19803004282 DE3004282A DE3004282A1 DE 3004282 A1 DE3004282 A1 DE 3004282A1 DE 19803004282 DE19803004282 DE 19803004282 DE 3004282 A DE3004282 A DE 3004282A DE 3004282 A1 DE3004282 A1 DE 3004282A1
Authority
DE
Germany
Prior art keywords
dielectric
capacitor
corrugations
centre
corrugated
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.)
Ceased
Application number
DE19803004282
Other languages
German (de)
Inventor
Werner 8590 Marktredwitz Wollenschläger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draloric Electronic GmbH
Original Assignee
Draloric Electronic GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Draloric Electronic GmbH filed Critical Draloric Electronic GmbH
Priority to DE19803004282 priority Critical patent/DE3004282A1/en
Priority to GB8103383A priority patent/GB2069240A/en
Priority to JP1675281A priority patent/JPS56129314A/en
Publication of DE3004282A1 publication Critical patent/DE3004282A1/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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

Abstract

The capacitor is designed to provide increased capacity at the same working voltage and in the same sized housing as has previously been used for the type of component. The dielectric material (1) has a corrugated formation in the centre (2) and is coated on both sides with the electrode metal (4,5). The ends of the dielectric are ridged (3) and the corrugations in the centre (2) are either the same height or less than the height of the end ridges. The central corrugations may be either round or angular. The dielectric thickness in the central area is also constant.

Description

Elektrischer Kondensator. Electric capacitor.

Die Erfindung betrifft einen elektrischen Kondensator gemäß dem Oberbegriff des Anspruches 1.The invention relates to an electrical capacitor according to the preamble of claim 1.

Ein derartiger Kondensator ist beispielsweise aus dem DE-GM 78 12 819 und aus dem DE-GM 78 31 224 bekannt.Such a capacitor is, for example, from DE-GM 78 12 819 and from DE-GM 78 31 224 known.

Bei diesen bekannten Kondensatoren ist der keramische Dielektrikumkörper jedoch eben ausgebildet, so daß der Kapazitätswert, der der Fläche der Metallschichten der einander gegenüberliegenden Beläge direkt proportional ist, zu relativ hohen Werten hin begrenzt ist.In these known capacitors, the ceramic dielectric body is however, it is made flat so that the capacitance value corresponds to that of the area of the metal layers of the opposing coverings is directly proportional to relatively high Is limited in terms of values.

Der Erfindung liegt die Aufgabe zugrunde, einen Kondensator der eingangs genannten Art zur Verfügung zu stellen der bei sonst gleichen Außenabmessungen einen wesentlich höheren Kapazitätswert bei gleicher Spannungsfestigkeit besitzt.The invention is based on the object of a capacitor of the initially to make available the type with otherwise the same external dimensions has a significantly higher capacitance value with the same dielectric strength.

Diese Aufgabe wird erfindungsgemäß durch das kennzeichnende Merkmal des Anspruches 1 gelöst.According to the invention, this object is achieved by the characterizing feature of claim 1 solved.

Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.Preferred developments of the invention are set out in the subclaims described.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß die Herstellung des Kondensators einfach ist und daß bei gleicher Spannungsfestigkeit und bei gleichen Abmessungen wesentlich höhere Kapazitätswerte erreichbar sind, als bei bekannten Kondensatoren.The advantages achieved by the invention are that the production of the capacitor simply is and that with the same dielectric strength and significantly higher capacitance values can be achieved with the same dimensions, than with known capacitors.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Der scheibenförmige, keramische Dielektrikumkörper 1 besitzt einen gewellten Mittelbereich 2, wodurch die die beiden einander gegenüberliegenden Hauptflächen bedeckenden Metallschichten 4 und 5 der Beläge vergrößert sind. Die beiden Metallschichten 4 und 5 der Beläge sind durch einen umlaufenden, wulstförmigen, metallfreien Rand 3 voneinander elektrisch isoliert. Zur verbesserten Wärmeabfuhr aus dem Dielektrikumkörper 1 können in den Tälern des wulstförmigen Mittelbereiches 2 Kühlschlangen entsprechend der aus dem DE-GM 78 12 819 bekannten Art befestigt sein. Es ist auch möglich, auf die Wellenberge je eine Blechscheibe aufzulöten und die dadurch entstehenden Hohlräume der Wellentäler mit einer Kühlflüssigkeit zu durchströmen.An embodiment of the invention is shown in the drawing. The disk-shaped, ceramic dielectric body 1 has a corrugated central area 2, whereby the metal layers covering the two opposing main surfaces 4 and 5 of the pads are enlarged. The two metal layers 4 and 5 of the coverings are electrical from one another by a circumferential, bead-shaped, metal-free edge 3 isolated. For improved heat dissipation from the dielectric body 1, in the Valleys of the bead-shaped central region 2 cooling coils corresponding to that from the DE-GM 78 12 819 known type attached. It is also possible to climb the wave crests to solder a sheet metal disc each and the resulting cavities in the wave troughs to flow through with a coolant.

Claims (5)

ANSPRÜCHE: Elektrischer Kondensator mit einem keramischen, scheibenförmigen Dielektrikumkörper, der an seinen beiden Hauptflächen je eine Metallschicht eines Belages besitzt und bei dem die beiden Metallschichten der Beläge durch einen wulstförmigen, metallfreien Rand voneinander getrennt sind, d a d u r c h g e k e n n z e i c h n e t, daß der Dielektrikumkörper (1) einen gewellten Mittelbereich (2) besitzt.CLAIMS: Electric capacitor with a ceramic, disc-shaped Dielectric body, which has a metal layer on each of its two main surfaces Covering and in which the two metal layers of the covering are supported by a bead-shaped, metal-free edge are separated from each other, so d u r c h e k e n n z e i c h n e t that the dielectric body (1) has a corrugated central region (2). 2. Elektrischer Kondensator nach Anspruch 1, dadurch gekennzeichnet, daß der gewellte Mittelbereich (2) rotationssymmetrisch ausgebildet ist.2. Electrical capacitor according to claim 1, characterized in that that the corrugated central area (2) is rotationally symmetrical. 3. Elektrischer Kondensator nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß die Amplitude des gewellten Mittelbereiches (2) kleiner oder maximal gleich hoch ist, als die Breite des wulstförmigen Randes (3) des Dielektrikumkörpers (1).3. Electrical capacitor according to one of claims 1 to 2, characterized characterized in that the amplitude of the corrugated central area (2) is smaller or is at most equal to the width of the bead-shaped edge (3) of the dielectric body (1). 4. Elektrischer Kondensator nach einem der'Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Wellen des gewellten Mittelbereiches (2) rund oder eckig sind.4. Electrical capacitor according to one of the claims 1 to 3, thereby characterized in that the waves of the corrugated central area (2) are round or angular are. 5. Elektrischer Kondensator nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Wandstärke des Dielektrikumkörpers (1) im gewellten Mittelbereich (2) konstant ist.5. Electrical capacitor according to one of claims 1 to 4, characterized characterized in that the wall thickness of the dielectric body (1) in the corrugated central area (2) is constant.
DE19803004282 1980-02-06 1980-02-06 Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry Ceased DE3004282A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19803004282 DE3004282A1 (en) 1980-02-06 1980-02-06 Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry
GB8103383A GB2069240A (en) 1980-02-06 1981-02-04 An electrical capacitor
JP1675281A JPS56129314A (en) 1980-02-06 1981-02-06 Condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803004282 DE3004282A1 (en) 1980-02-06 1980-02-06 Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry

Publications (1)

Publication Number Publication Date
DE3004282A1 true DE3004282A1 (en) 1981-08-13

Family

ID=6093869

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803004282 Ceased DE3004282A1 (en) 1980-02-06 1980-02-06 Capacitor with corrugated dielectric - has corrugations on either side of dielectric centre-line, both sides metallised to reduce component size and has rotational symmetry

Country Status (2)

Country Link
JP (1) JPS56129314A (en)
DE (1) DE3004282A1 (en)

Also Published As

Publication number Publication date
JPS56129314A (en) 1981-10-09

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Legal Events

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OP8 Request for examination as to paragraph 44 patent law
8131 Rejection