EP1206791B1 - Connector system for a rod-shaped two-ended discharge lamp - Google Patents
Connector system for a rod-shaped two-ended discharge lamp Download PDFInfo
- Publication number
- EP1206791B1 EP1206791B1 EP00969258A EP00969258A EP1206791B1 EP 1206791 B1 EP1206791 B1 EP 1206791B1 EP 00969258 A EP00969258 A EP 00969258A EP 00969258 A EP00969258 A EP 00969258A EP 1206791 B1 EP1206791 B1 EP 1206791B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- lamp
- connection device
- connection
- contact pin
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
- H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
Definitions
- the invention relates to a connection arrangement for a rod-shaped double ended Discharge lamp, in particular a high-pressure mercury lamp or Mercury medium pressure lamp, according to the preamble of the claim 1.
- Mercury high and medium pressure lamps are due to their emission in the UV range in irradiation units for influencing surfaces in a variety of applications, especially for the environmentally friendly Hardening of coatings, inks and paints used. conditioned due to dirt and wear, the lamp must be cleaned at intervals or replaced. Also for access to other serviceable Aggregate parts such as reflectors is an extension of the lamp essential. In doing so, appropriate safety precautions must be taken be because such UV lamps are operated with high voltage and to heat up to high temperatures during operation. In conventional Terminal arrangements for such lamps are the voltage leading Connecting cable to the lamp sockets materially bonded to the electrode system connected. Removal of the lamp therefore requires a labor-intensive Undo and fix the connection cables in the device housing cramped space.
- EP-A-367343 discloses a double ended discharge lamp with frontally free protruding pins, while a discharge lamp according to WO-A-97/37369, the contact pins on a complicated Ride connection assembly radially.
- the invention has the object, a connection arrangement to provide that overcomes the disadvantages mentioned and in a compact design easy installation and high reliability guaranteed.
- the invention is based on the idea of a simple holder of Combine lamp with reliable contact making. Accordingly it is proposed that the lamp base each have a contact pin under the provision of a lateral connection opening enclosing all sides Have insulating, and that the contact elements through the Connection opening of the associated lamp base through with its Contact pin can be brought into releasable engagement, wherein the insulating body in the connection state cover the connection openings. This will be a Quick change possibility with good all-sided insulation in the connection state guaranteed.
- a particularly advantageous and reliable contact production is characterized achieved, that the contact pins radially in a transverse to the lamp longitudinal axis extending joining direction to produce a clamp connection with the contact elements tool-free engageable and again detachable are.
- the contact elements formed by a U-shaped spring contact are, whose spring legs with their facing contact sides be spread open under spring tension on the contact pin.
- a further improvement of the contact production and contact action leaves can be achieved in that the spring legs of the spring contact a over a partial circumference over the entire surface against the contact pin adjacent partial circular bent contact portion and one away from the contact side have outwardly folded end portion, wherein the inside diameter the limited by the end portions insertion gap smaller than the Diameter of the contact pin is.
- the contact element via a at the same time with the connection line connectable connection part anchored to the insulating body is. Even with shape and position deviations always a full-surface
- the contact element with play "floating" is mounted on the insulating body. This can be over an example take place as spring washer trained spring element.
- a particularly good contact protection and a secure shielding of conductive parts is advantageously achieved in that the insulating body has a U-shaped or C-shaped support member, on the inside the contact element is arranged centrally projecting.
- a mechanically advantageous embodiment provides that the contact element is held against rotation in a recess of the insulating body.
- the insulating a end formed on the support member flange for attachment to the Lamp housing has.
- the trained as a hollow cylindrical pin pin is inside contacted with a lead wire of the associated lamp electrode.
- the contact pin his the discharge lamp-facing end portion a radially projecting, Having on the inside of the insulating sleeve collar.
- the insulating sleeve In order to ensure a sufficient mechanical strength, it is favorable when the insulating sleeve one the terminal end of the discharge lamp receiving, preferably sealed by means of a ceramic putty Support portion and a trained for the storage of the contact pin, Having provided with the connection opening free end portion. It is advantageous if the collar of the contact pin the interior of the Supporting section of the insulating sleeve end limited.
- the contact pin at its preferably by a Tapered spigot formed free end in a central recess stored a free end of the insulating sleeve forming end wall.
- the insulating front wall makes wide Isoliersharen in the lamp longitudinal direction dispensable, so that a compact device design allows becomes.
- connection opening in Circumferential direction of the insulating seen an opening angle of at least 120 ° and in the axial direction of the insulating sleeve an opening width of at least 5 mm, preferably 10 mm.
- the insulating sleeve and the insulating body each as one-piece molding made of an electrically insulating, thermally conductive and heat-resistant material, preferably of a ceramic material.
- the contact element and / or the contact pin made of stainless steel or copper or a copper-beryllium alloy and optionally with an electrically highly conductive, non-oxidizing Surface layer preferably coated of gold or silver is.
- Another aspect of the invention relates to a discharge lamp, in particular Mercury high pressure lamp or medium pressure mercury lamp is used in a UV irradiation unit, with a double-capped, rod-shaped discharge tube and a connection arrangement according to the invention.
- connection arrangement shown in the drawing 10 or connection set serves for quick change holder and for electrical connection a rod-shaped mercury vapor gas discharge lamp 12 in one Housing 14 of a UV irradiation unit, not shown.
- she consists essentially one each at the two terminal ends 16 of the Discharge tube 18 of the discharge lamp 12 arranged lamp base 20 and a respective Einbau established 22 for receiving the associated Lamp sockets 20.
- the lamp caps 20 each have one at the terminal end 16 axially, i.e. in the direction of the lamp longitudinal axis 24 protruding pin 26 and a coaxially arranged with the contact pin 26, the basic shape cylindrical ceramic insulating sleeve 28 on.
- the contact pin 26 is as Hollow cylinder pin executed and inside with one from the terminal end led out lead wire 30 welded, which has a metal strip piece 32 through the melt 34 through with the in the discharge tube 18 projecting coiled pin electrode 36 electrically connected is.
- the contact pin 26 has a radial projecting plate-shaped collar 38, which radially on the inner wall the insulating sleeve 28 abuts.
- the insulating sleeve 28 comprises with a lamp-side support portion 40 the Terminal end 16 and is with this over a ceramic putty 42nd cohesively connected. Front side of the connection area is through the Bund 38 of the contact pin 26 receiving free end portion 44 of the insulating sleeve 28 separated.
- the end portion 44 is provided with a lateral, provided by a radial sheath opening formed connection opening 46, otherwise, however, with the freedom of an annular space 48 opposite closed the contact pin 26 on all sides.
- the connection opening 46 extends over an opening angle of about 160 ° in the circumferential direction and has an axial opening width of approx. 10 mm.
- the insulating sleeve 28 At its free end wall 50 points the insulating sleeve 28 has a central, inwardly open blind bore 51, in which the contact pin 26 has an end-side tapered in diameter Spigot 52 is mounted.
- An inner shoulder 54 of the insulating sleeve 28th forms a stop for the contact pin 26, wherein the collar 38 for Compensation of different thermal expansion at an axial distance from the inner shoulder 54 is arranged.
- the Einbau charged 22 consists of a with the contact pin 26 in clamping contact can be brought via a connecting cable 56 with high voltage (greater than 1 kV) acted upon spring contact 58 and a spring contact 58th ceramic insulating body 60.
- the U-shaped spring contact 58 on two spring legs 62 which with their mutually facing contact sides laterally diametrically on the contact pin 26 are spreadable.
- the light Width of the limited by the end portions 66 insertion gap 68 smaller as the diameter of the contact pin 26, so that the spring contact 58 easily als alssp Schwarzbar and locked in the connection state with the contact pin 26 is.
- the insulating body 60 has a receiving part designed as a U-shaped piece 70 for receiving the lamp cap 20 and a front side of the receiving part 70 integrally formed flange 72 for synchronbefest Trent to the housing 14 on.
- the receiving part 70 is on the inside at its crosspiece 74th provided with a longitudinal groove 76 in which the spring contact 58 at its Base is held against rotation.
- To anchor the spring contact 58 is between the spring legs 62 a core piece 78 riveted, the over a threaded shaft 80 passes through the transverse web 74 of the receiving part 70 and is supported at its rear by means of nut 82 (Fig. 1).
- the Kem Institution 78 at its abutting contact pin 26 contact side 88 complementary concave shaped to the outer contour.
- the support portion 40 of the insulating sleeve 28 has an axial to the connection opening 46 adjacent flattened wall portion 90 on (Fig. 3), with the plan inner surface 92 of the crosspiece 74 of the receiving part 70 in tip over Plant can be brought.
- An additional position stabilization is by the Leg of the receiving part 70 reaches, which with their facing each other Inner sides of the support portion 40 of the insulating sleeve 28 laterally center.
- the discharge lamp 12 can be with the lamp sockets 20 to simple Insert without tools in the installation guides 22 and remove again.
- the contact pins 26 are in a direction transverse to the lamp longitudinal axis 24 extending joining direction with the spring contacts 58 in engagement brought or dissolved again.
- the reserved annulus 48 allows a corresponding spreading of the spring leg 62.
- the receiving part 70th the insulating body 60 covers in the connection state, the connection opening 46 of the insulating sleeve 28, so that an all-round insulation and a secure contact protection is reached.
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Connecting Device With Holders (AREA)
Abstract
Description
Die Erfindung betrifft eine Anschlußanordnung für eine stabförmige zweiendige Entladungslampe, insbesondere eine Quecksilber-Hochdrucklampe oder Quecksilber-Mitteldrucklampe, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a connection arrangement for a rod-shaped double ended Discharge lamp, in particular a high-pressure mercury lamp or Mercury medium pressure lamp, according to the preamble of the claim 1.
Quecksilber-Hoch- und Mitteldrucklampen werden aufgrund ihrer Emission im UV-Bereich in Bestrahlungsaggregaten zur Beeinflussung von Oberflächen in vielfältigen Anwendungen, insbesondere zum umweltfreundlichen Härten von Beschichtungen, Druckfarben und Lacken eingesetzt. Bedingt durch Verschmutzung und Verschleiß muß die Lampe intervallweise gereinigt bzw. ausgewechselt werden. Auch für den Zugang zu weiteren wartungsbedürftigen Aggregateteilen wie Reflektoren ist ein Ausbau der Lampe unerläßlich. Dabei müssen entsprechende Sicherheitsvorkehrungen getroffen werden, da solche UV-Lampen mit Hochspannung betrieben werden und sich im Betrieb auf hohe Temperaturen aufheizen. Bei herkömmlichen Anschlußanordnungen für solche Lampen sind die Spannung führenden Anschlußkabel an den Lampensockeln stoffschlüssig mit dem Elektrodensystem verbunden. Ein Ausbau der Lampe erfordert daher ein arbeitsintensives Lösen und Festlegen der Anschlußkabel in dem Gerätegehäuse unter beengten Platzverhältnissen. Deshalb werden oftmals dringende Reinigungsarbeiten oder ein notwendiger Lampenwechsel unzulässig lange aufgeschoben. Hinzu kommen Sicherheitsprobleme durch berührbare Metallteile, die bei der Lampenmontage im Fehlerfall Spannung aufnehmen können. Ferner müssen solche offenen Leiterteile gegenüber leitenden Gehäuseteilen durch ausreichende Isolierstrecken freigehalten werden, was letztlich zu verringerten Bestrahlungszonen bei gegebenen Gehäuseabmessungen führt. Mercury high and medium pressure lamps are due to their emission in the UV range in irradiation units for influencing surfaces in a variety of applications, especially for the environmentally friendly Hardening of coatings, inks and paints used. conditioned due to dirt and wear, the lamp must be cleaned at intervals or replaced. Also for access to other serviceable Aggregate parts such as reflectors is an extension of the lamp essential. In doing so, appropriate safety precautions must be taken be because such UV lamps are operated with high voltage and to heat up to high temperatures during operation. In conventional Terminal arrangements for such lamps are the voltage leading Connecting cable to the lamp sockets materially bonded to the electrode system connected. Removal of the lamp therefore requires a labor-intensive Undo and fix the connection cables in the device housing cramped space. Therefore, often urgent cleaning work or a necessary change of lamp postponed for an unduly long time. In addition there are security problems with accessible metal parts, which can absorb voltage during lamp assembly in the event of a fault. Furthermore, such open conductor parts have to conductive housing parts be kept free by sufficient Isolierstrecken, which ultimately too reduced irradiation zones given housing dimensions leads.
Aus der FR-A-938613 ist eine Stablampe mit den gattungsbildenden Merkmalen bekannt. Die EP-A-367343 offenbart eine zweiendige Entladungslampen mit stirnseitig frei abstehenden Kontaktstiften, während bei einer Entladungslampe nach der WO-A-97/37369 die Kontaktstifte über eine komplizierte Verbindungsanordnung radial abstehen.From FR-A-938613 is a flashlight with the generic features known. EP-A-367343 discloses a double ended discharge lamp with frontally free protruding pins, while a discharge lamp according to WO-A-97/37369, the contact pins on a complicated Ride connection assembly radially.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Anschlußanordnung bereitzustellen, die die genannten Nachteile überwindet und bei kompakter Bauform eine einfache Montage und hohe Betriebssicherheit gewährleistet.Proceeding from this, the invention has the object, a connection arrangement to provide that overcomes the disadvantages mentioned and in a compact design easy installation and high reliability guaranteed.
Zur Lösung dieser Aufgabe wird die im Patentanspruch 1 angegebene Merkmalskombination vorgeschlagen. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.To solve this problem specified in claim 1 Feature combination proposed. Advantageous embodiments and Further developments of the invention will become apparent from the dependent claims.
Die Erfindung geht von dem Gedanken aus, eine einfache Halterung der Lampe mit einer zuverlässigen Kontaktherstellung zu kombinieren. Dementsprechend wird vorgeschlagen, daß die Lampensockel jeweils eine den Kontaktstift unter Freihaltung einer seitlichen Anschlußöffnung allseitig umschließende Isolierhülse aufweisen, und daß die Kontaktelemente durch die Anschlußöffnung des zugeordneten Lampensockels hindurch mit dessen Kontaktstift in lösbaren Eingriff bringbar sind, wobei die Isolierkörper im Verbindungszustand die Anschlußöffnungen überdecken. Damit wird eine schnelle Wechselmöglichkeit bei guter allseitiger Isolierung im Verbindungszustand gewährleistet.The invention is based on the idea of a simple holder of Combine lamp with reliable contact making. Accordingly It is proposed that the lamp base each have a contact pin under the provision of a lateral connection opening enclosing all sides Have insulating, and that the contact elements through the Connection opening of the associated lamp base through with its Contact pin can be brought into releasable engagement, wherein the insulating body in the connection state cover the connection openings. This will be a Quick change possibility with good all-sided insulation in the connection state guaranteed.
Eine besonders vorteilhafte und zuverlässige Kontaktherstellung wird dadurch erreicht, daß die Kontaktstifte radial in einer quer zur Lampenlängsachse verlaufenden Fügerichtung unter Herstellung einer Klemmverbindung mit den Kontaktelementen werkzeuglos in Eingriff bringbar sowie wieder lösbar sind.A particularly advantageous and reliable contact production is characterized achieved, that the contact pins radially in a transverse to the lamp longitudinal axis extending joining direction to produce a clamp connection with the contact elements tool-free engageable and again detachable are.
Um den Einsetzmechanismus weiter zu vereinfachen, wird vorgeschlagen, daß die Kontaktelemente durch einen U-förmigen Federkontakt gebildet sind, dessen Federschenkel mit ihren einander zugewandten Kontaktseiten unter Federspannung auf den Kontaktstift aufspreizbar sind.In order to further simplify the insertion mechanism, it is proposed that the contact elements formed by a U-shaped spring contact are, whose spring legs with their facing contact sides be spread open under spring tension on the contact pin.
Eine weitere Verbesserung der Kontaktherstellung und Kontaktwirkung läßt sich dadurch erreichen, daß die Federschenkel des Federkontakts einen über einen Teilumfang vollflächig gegen den Kontaktstift anliegenden teilkreisförmig gebogenen Kontaktabschnitt und einen von der Kontaktseite weg nach außen abgekanteten Endabschnitt aufweisen, wobei die lichte Weite des durch die Endabschnitte begrenzten Einführspalts kleiner als der Durchmesser des Kontaktstifts ist.A further improvement of the contact production and contact action leaves can be achieved in that the spring legs of the spring contact a over a partial circumference over the entire surface against the contact pin adjacent partial circular bent contact portion and one away from the contact side have outwardly folded end portion, wherein the inside diameter the limited by the end portions insertion gap smaller than the Diameter of the contact pin is.
Günstig ist es auch, wenn das Kontaktelement über ein zugleich mit der Anschlußleitung verbindbares Anschlußteil an dem isolierkörper verankerbar ist. Um auch bei Form- und Lageabweichungen stets einen vollflächigen Kontakt sicherzustellen, ist es vorteilhaft, wenn das Kontaktelement mit Spiel "schwimmend" an dem Isolierkörper gelagert ist. Dies kann über ein beispielsweise als Federscheibe ausgebildetes Federelement erfolgen. Vorteilhafterweise ist das Anschlußteil durch ein zwischen den Federschenkeln des Federkontakts angeordnetes Kemstück und einen an dem Kemstück angeformten, den Federkontakt an seiner die Federschenkel verbindenden Basis durchsetzenden Gewindeschaft gebildet.It is also favorable if the contact element via a at the same time with the connection line connectable connection part anchored to the insulating body is. Even with shape and position deviations always a full-surface To ensure contact, it is beneficial if the contact element with play "floating" is mounted on the insulating body. This can be over an example take place as spring washer trained spring element. advantageously, is the connecting part by a between the spring legs of the Kemstück arranged spring contact and a molded on the Kemstück, the spring contact on its base connecting the spring leg formed by passing threaded shaft.
Ein besonders guter Berührungsschutz und eine sichere Abschirmung der leitenden Teile wird vorteilhafterweise dadurch erreicht, daß der Isolierkörper ein als U- oder C-Profil ausgebildetes Stützteil aufweist, an dessen Innenseite das Kontaktelement zentral abstehend angeordnet ist. A particularly good contact protection and a secure shielding of conductive parts is advantageously achieved in that the insulating body has a U-shaped or C-shaped support member, on the inside the contact element is arranged centrally projecting.
Eine mechanisch vorteilhafte Ausführung sieht vor, daß das Kontaktelement in einer Ausnehmung des Isolierkörpers verdrehsicher gehalten ist.A mechanically advantageous embodiment provides that the contact element is held against rotation in a recess of the insulating body.
Zur Montagevereinfachung wird vorgeschlagen, daß der Isolierkörper einen stimseitig an dem Stützteil angeformten Flansch zur Befestigung an dem Lampengehäuse aufweist.To simplify assembly is proposed that the insulating a end formed on the support member flange for attachment to the Lamp housing has.
Vorteilhafterweise ist der als Hohlzylinderstift ausgebildete Kontaktstift innenseitig mit einem Anschlußdraht der zugehörigen Lampenelektrode kontaktierbar.Advantageously, the trained as a hollow cylindrical pin pin is inside contacted with a lead wire of the associated lamp electrode.
Um den Eingriff des Kontaktelements zu erleichtern, ist es vorgesehen, daß zwischen der Isolierhülse und dem darin konzentrisch angeordneten Kontaktstift ein Ringraum freigehalten ist.In order to facilitate the engagement of the contact element, it is provided that between the insulating sleeve and the contact pin arranged concentrically therein an annulus is kept free.
Zur Zentrierung und Abstützung ist es vorteilhaft, wenn der Kontaktstift an seinem der Entladungslampe zugewandten Endabschnitt einen radial überstehenden, innenseitig an die Isolierhülse anliegenden Bund aufweist.For centering and support, it is advantageous if the contact pin his the discharge lamp-facing end portion a radially projecting, Having on the inside of the insulating sleeve collar.
Um eine ausreichende mechanische Festigkeit sicherzustellen, ist es günstig, wenn die Isolierhülse einen das Anschlußende der Entladungslampe aufnehmenden, vorzugsweise mittels einer keramischen Kittmasse abgedichteten Stützabschnitt und einen zur Lagerung des Kontaktstifts ausgebildeten, mit der Anschlußöffnung versehenen freien Endabschnitt aufweist. Dabei ist es von Vorteil, wenn der Bund des Kontaktstifts den Innenraum des Stützabschnitts der Isolierhülse stimseitig begrenzt.In order to ensure a sufficient mechanical strength, it is favorable when the insulating sleeve one the terminal end of the discharge lamp receiving, preferably sealed by means of a ceramic putty Support portion and a trained for the storage of the contact pin, Having provided with the connection opening free end portion. It is advantageous if the collar of the contact pin the interior of the Supporting section of the insulating sleeve end limited.
Vorteilhafterweise ist der Kontaktstift an seinem vorzugsweise durch einen verjüngten Zentrieransatz gebildeten freien Ende in einer Zentralausnehmung einer das freie Stimende der Isolierhülse bildenden Stimwand gelagert. Die isolierenden Stirnwand macht weite Isolierstrecken in Lampenlängsrichtung entbehrlich, so daß ein kompakter Geräteaufbau ermöglicht wird.Advantageously, the contact pin at its preferably by a Tapered spigot formed free end in a central recess stored a free end of the insulating sleeve forming end wall. The insulating front wall makes wide Isolierstrecken in the lamp longitudinal direction dispensable, so that a compact device design allows becomes.
Hinsichtlich der mechanischen Stabilisierung wird eine weitere Verbesserung dadurch erreicht, daß die Isolierhülse eine an die Anschlußöffnung angrenzende, axial zu dem lampenseitigen Ende hin sich erstreckende abgeflachte Wandpartie aufweist, welche im Verbindungszustand mit einer zugewandten Planfläche des Isolierkörpers in Anlage kommt.With regard to mechanical stabilization will be a further improvement achieved in that the insulating sleeve adjacent to the connection opening, axially flattened towards the lamp-side end Has wall part, which in the connection state with a facing Flat surface of the insulating body comes into contact.
Um den Eingriff des Kontaktelements zu erleichtern und eine ausreichende Kontaktfläche freizuhalten, ist es vorteilhaft, wenn die Anschlußöffnung in Umfangsrichtung der Isolierhülse gesehen einen Öffnungswinkel von wenigstens 120° und in axialer Richtung der Isolierhülse eine Öffnungsbreite von mindestens 5 mm, vorzugsweise 10 mm aufweist.To facilitate the engagement of the contact element and a sufficient To keep contact surface free, it is advantageous if the connection opening in Circumferential direction of the insulating seen an opening angle of at least 120 ° and in the axial direction of the insulating sleeve an opening width of at least 5 mm, preferably 10 mm.
Vorteilhafterweise bestehen die Isolierhülse und der Isolierkörper jeweils als einstückiges Formteil aus einem elektrisch isolierenden, wärmeleitfähigen und hitzebeständigen Material, vorzugsweise aus einem Keramikmaterial.Advantageously, the insulating sleeve and the insulating body each as one-piece molding made of an electrically insulating, thermally conductive and heat-resistant material, preferably of a ceramic material.
Um geringe Übergangswiderstände und eine hohe Dauerstandfestigkeit zu erreichen, ist es von Vorteil, wenn das Kontaktelement und/oder der Kontaktstift aus Edelstahl oder Kupfer oder einer Kupfer-Beryllium-Legierung besteht und gegebenenfalls mit einer elektrisch hochleitfähigen, nicht oxydierenden Oberflächenschicht vorzugsweise aus Gold oder Silber überzogen ist.For low contact resistance and high creep resistance reach, it is advantageous if the contact element and / or the contact pin made of stainless steel or copper or a copper-beryllium alloy and optionally with an electrically highly conductive, non-oxidizing Surface layer preferably coated of gold or silver is.
Ein weiterer Erfindungsaspekt betrifft eine Entladungslampe, insbesondere Quecksilber-Hochdrucklampe oder Quecksilber-Mitteldrucklampe zum Einsatz in einem UV-Bestrahlungsaggregat, mit einem zweiseitig gesockelten, stabförmigen Entladungsrohr und einer erfindungsgemäßen Anschlußanordnung.Another aspect of the invention relates to a discharge lamp, in particular Mercury high pressure lamp or medium pressure mercury lamp is used in a UV irradiation unit, with a double-capped, rod-shaped discharge tube and a connection arrangement according to the invention.
Im folgenden wird die Erfindung anhand eines in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigen
- Fig. 1
- eine Anschlußanordnung an einem Anschlußende einer abgebrochen dargestellten Entladungslampe im axialen Vertikalschnitt;
- Fig. 2 und Fig.
- einen Lampensockel der Anschlußanordnung in der Stirnseitenansicht und Draufsicht;
- Fig. 4 und Fig. 5
- eine Einbaufassung der Anschlußanordnung zur Aufnahme eines Lampensockels in der Stirnseitenansicht und Draufsicht.
- Fig. 1
- a connection arrangement at a terminal end of a discharge lamp shown broken off in axial vertical section;
- Fig. 2 and Fig.
- a lamp cap of the terminal assembly in the end view and top view;
- 4 and FIG. 5
- a Einbaufassung the terminal assembly for receiving a lamp cap in the front view and top view.
Die in der Zeichnung dargestellte Anschlußanordnung 10 bzw. Anschlußgarnitur
dient zur schnell wechselbaren Halterung und zum elektrischen Anschluß
einer stabförmigen Quecksilberdampf-Gasentladungslampe 12 in einem
Gehäuse 14 eines nicht gezeigten UV-Bestrahlungsaggregats. Sie besteht
im wesentlichen aus jeweils einem an den zwei Anschlußenden 16 des
Entladungsrohrs 18 der Entladungslampe 12 angeordneten Lampensockel
20 sowie jeweils einer Einbaufassung 22 zur Aufnahme des zugehörigen
Lampensockels 20.The connection arrangement shown in the
Die Lampensockel 20 weisen jeweils einen an dem Anschlußende 16 axial,
d.h. in Richtung der Lampenlängsachse 24 abstehenden Kontaktstift 26 sowie
eine koaxial mit dem Kontaktstift 26 angeordnete, der Grundform nach
zylindrische keramische Isolierhülse 28 auf. Der Kontaktstift 26 ist als
Hohlzylinderstift ausgeführt und innenseitig mit einem aus dem Anschlußende
herausgeführten Anschlußdraht 30 verschweißt, welcher über ein Metallbandstück
32 durch die Einschmelzung 34 hindurch mit der in das Entladungsrohr
18 ragenden gewendelten Stiftelektrode 36 elektrisch verbunden
ist. An seinem lampenseitigen Ende weist der Kontaktstift 26 einen radial
überstehenden tellerförmigen Bund 38 auf, welcher radial an der Innenwand
der Isolierhülse 28 anliegt.The lamp caps 20 each have one at the
Die Isolierhülse 28 umfaßt mit einem lampenseitigen Stützabschnitt 40 das
Anschlußende 16 und ist mit diesem über eine keramische Kittmasse 42
stoffschlüssig verbunden. Stirnseitig wird der Verbindungsbereich durch den
Bund 38 von einem den Kontaktstift 26 aufnehmenden freien Endabschnitt
44 der Isolierhülse 28 getrennt. Der Endabschnitt 44 ist mit einer seitlichen,
durch einen radialen Manteldurchbruch gebildeten Anschlußöffnung 46 versehen,
im übrigen jedoch unter Freihaltung eines Ringraums 48 gegenüber
dem Kontaktstift 26 allseitig geschlossen. Die Anschlußöffnung 46 erstreckt
sich über einen Öffnungswinkel von ca. 160° in Umfangsrichtung und besitzt
eine axiale Öffnungsbreite von ca. 10 mm. An ihrer freien Stirnwand 50 weist
die Isolierhülse 28 eine zentrale, nach innen offene Sacklochbohrung 51 auf,
in welcher der Kontaktstift 26 über einen im Durchmesser verjüngten endseitigen
Zentrieransatz 52 gelagert ist. Eine Innenschulter 54 der Isolierhülse 28
bildet einen Anschlag für den Kontaktstift 26, wobei dessen Bund 38 zum
Ausgleich unterschiedlicher Wärmedehnung im axialen Abstand von der Innenschulter
54 angeordnet ist.The
Die Einbaufassung 22 besteht aus einem mit dem Kontaktstift 26 in Klemmkontakt
bringbaren, über ein Anschlußkabel 56 mit Hochspannung (größer 1
kV) beaufschlagbaren Federkontakt 58 sowie einem den Federkontakt 58
tragenden keramischen Isolierkörper 60. Wie am besten aus Fig. 4 ersichtlich,
weist der U-förmige Federkontakt 58 zwei Federschenkel 62 auf, die mit
ihren einander zugewandten Kontaktseiten seitlich diametral auf den Kontaktstift
26 aufspreizbar sind. Zu diesem Zweck weisen die Federschenkel 62
jeweils einen über seine Länge entsprechend der Querschnittskontur des
Kontaktstifts gebogenen Mittelabschnitt 64 und einen von der Kontaktseite
weg nach außen abgekanteten Endabschnitt 66 auf. Dabei ist die lichte
Weite des durch die Endabschnitte 66 begrenzten Einführspalts 68 kleiner
als der Durchmesser des Kontaktstifts 26, so daß der Federkontakt 58 leicht
aufspreizbar und im Verbindungszustand mit dem Kontaktstift 26 verrastbar
ist.The
Der Isolierkörper 60 weist ein als U-Profilstück ausgebildetes Aufnahmeteil
70 zur Aufnahme des Lampensockels 20 und einen stirnseitig an dem Aufnahmeteil
70 angeformten Flansch 72 zur Schraubbefestigung an dem Gehäuse
14 auf. Das Aufnahmeteil 70 ist innenseitig an seinem Quersteg 74
mit einer Längsnut 76 versehen, in welcher der Federkontakt 58 an seiner
Basis verdrehsicher gehalten ist. Zur Verankerung des Federkontakts 58 ist
zwischen dessen Federschenkeln 62 ein Kernstück 78 eingenietet, das über
einen Gewindeschaft 80 den Quersteg 74 des Aufnahmeteils 70 durchgreift
und an dessen Rückseite mittels Mutter 82 abgestützt ist (Fig. 1). Auf das
überstehende freie Ende des Gewindeschafts 80 ist eine das Ende des Anschlußkabels
56 bildende Schraubmuffe 84 aufschraubbar, weiche ihrerseits
im Verbindungszustand durch eine keramische Überwurfhülse 86 isolierbar
ist. Um den Übergangswiderstand weiter zu verringern, ist das Kemstück 78
an seiner an den Kontaktstift 26 anliegenden Kontaktseite 88 komplementär
zu dessen Außenkontur konkav geformt. Zur mechanischen Stabilisierung
weist der Stützabschnitt 40 der Isolierhülse 28 eine axial an die Anschlußöffnung
46 angrenzende abgeflachte Wandpartie 90 auf (Fig. 3), die mit der
planen Innenfläche 92 des Querstegs 74 des Aufnahmeteils 70 kippsicher in
Anlage bringbar ist. Eine zusätzliche Lagestabilisierung wird durch die
Schenkel des Aufnahmeteils 70 erreicht, welche mit ihren einander zugewandten
Innenseiten den Stützabschnitt 40 der Isolierhülse 28 seitlich zentrieren. The insulating
Die Entladungslampe 12 läßt sich mit den Lampensockeln 20 auf einfache
Weise werkzeuglos in die Einbaufassungen 22 einsetzen und wieder entnehmen.
Dabei werden die Kontaktstifte 26 in einer quer zur Lampenlängsachse
24 verlaufenden Fügerichtung mit den Federkontakten 58 in Eingriff
gebracht bzw. wieder gelöst. Der freigehaltene Ringraum 48 ermöglicht ein
entsprechendes Aufspreizen der Federschenkel 62. Das Aufnahmeteil 70
des Isolierkörpers 60 überdeckt im Verbindungszustand die Anschlußöffnung
46 der Isolierhülse 28, so daß eine allseitige Isolierung und ein sicherer Berührungsschutz
erreicht wird.The
Claims (21)
- Connection device for a rod-shaped two-ended discharge lamp (12), in particular a mercury high pressure lamp or mercury medium pressure lamp, with two lamp bases (20) provided at the connector ends (16) of the discharge lamp (12), where each lamp base (20) has a contact pin (26) extending from the connector end (16) in the lamp longitudinal direction (24) and being electrically connected with a lamp electrode (36), and two insert sockets (22) for receiving the lamp bases (20) mounted spaced apart from each other in a lamp housing (14) and having a contact element (58) which is energizable with high voltage via a connection line (56) as well as an insulation body (60) for carrying the contact element (58), thereby characterized, that the lamp bases (20) have an insulating cylinder (28) surrounding the contact pin (26) on all sides with the exception of a lateral connection opening (46), and that the contact elements (58) can be brought into releasable engagement through the connection opening (46) of the associated lamp base (20) with its contact pin (26), wherein the insulation bodies (60) cover the connection opening (46) when in the connected condition.
- Connection device according to Claim 1, thereby characterized, that the contact pins (26) can be engaged and disengaged without tools with the contact elements (58) in a connecting direction which extends perpendicularly to the lamp longitudinal axis (24), producing a clamp connection.
- Connection device according to Claim 1 or 2, thereby characterized, that the contact elements (58) comprise a U-shaped spring contact, of which the spring shanks (62), with their each-other facing contact sides, are spreadable providing spring tension upon the contact pin (26).
- Connection device according to Claim 3, thereby characterized, that the spring shanks (62) of the spring contact (58) exhibit a contact segment (64) bent into an arc lying flush over a partial circumference against the contact pin (26), as well as an end segment (66) bent outwardly away from the contact side, wherein the gap width of the insertion gap (68) bordered by the end segments (66) is smaller than the diameter of the contact pin (26).
- Connection device according to one of Claims 1 through 4, thereby characterized, that the contact element (58) is anchored onto the insulation body (60) via a connection part (78, 80) which is connected at the same time with the connection line (56).
- Connection device according to one of Claims 1 through 5, thereby characterized, that the contact element (58) is mounted at the insulation body (60) with play preferably via a spring element.
- Connection device according to Claim 5 or 6, thereby characterized, that the connection part (78) is formed by a core piece provided between the spring shanks (62) of the spring contact (58) and a threaded shaft (80) formed on the core piece (78) and extending through the base connecting the spring shanks (62) of the spring contact (58).
- Connection device according to one of Claims 1 through 7, thereby characterized, that the insulation body (60) exhibits a U- or C-shaped receiving part (70), on the inner side (92) of which the contact element (58) is provided, spaced apart, centrally.
- Connection device according to one of Claims 1 through 8, thereby characterized, that the contact element (58) is maintained fixed against rotation in a recess (76) of the insulation body (60).
- Connection device according to one of Claims 1 through 9, thereby characterized, that the insulation body (60) exhibits a flange (72) formed at the end face of the receiving part (70) for securing to the lamp housing (14).
- Connection device according to one of Claims 1 through 10, thereby characterized, that the hollow cylinder pin-shaped contact pin (26) is adapted for forming an internal contact with the connection wire (30) of the associated lamp electrode (36).
- Connection device according to one of Claims 1 through 11, thereby characterized, that between the insulating cylinder (28) and the therein concentrically positioned contact pin (26) a ring space (48) is kept free for engagement of the contact element (58).
- Connection device according to one of Claims 1 through 12, thereby characterized, that the contact pin (26) exhibits on its end segment facing the discharge lamp (12) a radially projecting flange (38) lying against the inward side of the insulating cylinder (28).
- Connection device according to one of Claims 1 through 12, thereby characterized, that the insulating cylinder (28) includes a support segment (40) and a free end segment (44), the support segment (40) adapted for receiving the connector end (16) of the discharge lamp (12), preferably sealed by a ceramic cement (42), and the free end segment (44) provided with a lateral connection opening (46) and formed as a mounting for the contact pin (26).
- Connection device according to Claim 14, thereby characterized, that the flange (38) of the contact pin (26) borders the end face of the inner space of the support segment (40) of the insulating cylinder (28).
- Connection device according to one of Claims 1 through 15, thereby characterized, that the contact pin (26) on its free end, preferably in the form of a narrowing centering extension (52), is mounted in a central recess (51) of an end wall (50) forming the free end face of the insulating cylinder (28).
- Connection device according to one of Claims 1 through 16, thereby characterized, that the insulating cylinder (28) exhibits a flattened wall part (90) extending axially to its lamp-end side and bordering the connection opening (46), which in the connected condition comes into contact with an associated planar surface (92) of the insulation body (60).
- Connection device according to one of Claims 1 through 17, thereby characterized, that the connection opening (46) exhibits an opening angle of at least 120° viewed in the circumference direction of the insulating cylinder (28) and in the axial direction of the insulating cylinder (28) exhibits an opening breadth of at least 5 mm, preferably 10 mm.
- Connection device according to one of Claims 1 through 18, thereby characterized, that the insulating cylinder (28) and the insulation body (60) are respectively comprised of a one piece shaped part of an electrically insulating, thermally conductive and heat resistant material, preferably a ceramic material.
- Connection device according to one of Claims 1 through 19, thereby characterized, that the contact element (58) and/or the contact pin (26) are comprised of stainless steel or copper or a copper-beryllium-alloy, and optionally coated with an electrically highly conductive, non-oxidating surface layer, preferably gold or silver.
- A discharge lamp (12), in particular mercury-high-pressure lamp or mercury-medium-pressure lamp for employment in a UV-radiating device, with a rod-shaped discharge lamp (18) having connector ends on both sides, characterized by a connection device (10) according to one of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19955979 | 1999-11-20 | ||
| DE19955979A DE19955979A1 (en) | 1999-11-20 | 1999-11-20 | Connector for rod-shaped mercury discharge lamp has contact pins enclosed in insulated covering, and mounting fitting with contacts in insulating body |
| PCT/EP2000/009064 WO2001039237A1 (en) | 1999-11-20 | 2000-09-16 | Connector system for a rod-shaped two-ended discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1206791A1 EP1206791A1 (en) | 2002-05-22 |
| EP1206791B1 true EP1206791B1 (en) | 2004-01-28 |
Family
ID=7929808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00969258A Expired - Lifetime EP1206791B1 (en) | 1999-11-20 | 2000-09-16 | Connector system for a rod-shaped two-ended discharge lamp |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6946782B1 (en) |
| EP (1) | EP1206791B1 (en) |
| AT (1) | ATE258716T1 (en) |
| DE (2) | DE19955979A1 (en) |
| WO (1) | WO2001039237A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1760395A1 (en) * | 2005-08-29 | 2007-03-07 | J.S.T. Mfg. Co., Ltd. | Fluorescent tube attaching structure |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6641422B2 (en) | 2000-12-06 | 2003-11-04 | Honeywell International Inc. | High intensity discharge lamp and a method of interconnecting a high intensity discharge lamp |
| DE10128946A1 (en) * | 2001-06-18 | 2002-12-19 | Wedeco Ag | Lamp unit with interlock function for ultraviolet irradiation devices, has cap with contacts forming conductive connection to connectors in operating position and preventing access to base in this position |
| DE102004007150A1 (en) * | 2004-02-12 | 2005-08-25 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Base for a headlamp and headlamp |
| EP1603148A1 (en) * | 2004-06-01 | 2005-12-07 | Koninklijke Philips Electronics N.V. | Lamp assembly comprising a discharge lamp and a lamp holder |
| NL1028431C2 (en) * | 2005-03-01 | 2006-02-09 | Peter Jacobus Maria Timmermans | Fluorescent lamp holder, comprises inner and outer bushings rotatable relative to each other |
| NL1030707C2 (en) * | 2005-03-01 | 2006-05-01 | Peter Jacobus Maria Timmermans | Holder for fluorescent lamp, comprises inner and outer tubes which are rotated to provide electrical contact with wire contacts |
| DE102005031160B4 (en) * | 2005-07-04 | 2013-11-28 | Koenig & Bauer Aktiengesellschaft | Drying device for a printing press |
| DE102005041171B4 (en) * | 2005-08-30 | 2007-07-12 | Otto Vollmann Gmbh & Co. | Electric light |
| DE102007003490A1 (en) * | 2007-01-24 | 2008-07-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Socket for an electric lamp |
| GB0722253D0 (en) * | 2007-11-13 | 2007-12-27 | Gew Ec Ltd | Uv lamp |
| US7963661B2 (en) * | 2009-02-09 | 2011-06-21 | American Greetings Corporation | Display light fixtures |
| GB2478717A (en) * | 2010-03-15 | 2011-09-21 | Gew | Lamp housing for ink curing apparatus |
| US9228727B2 (en) | 2012-04-05 | 2016-01-05 | Michael W. May | Lighting assembly |
| WO2015161217A1 (en) | 2014-04-18 | 2015-10-22 | May Michael W | Lighting assembly |
| GB201411699D0 (en) | 2014-07-01 | 2014-08-13 | Gew Ec Ltd | Ink curing apparatus |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR938613A (en) * | 1943-01-14 | 1948-10-20 | Lampes Sa | Improvements to the bases and sockets of electric lamps and similar apparatus |
| DE3236462A1 (en) * | 1982-10-01 | 1984-04-05 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | HIGH PRESSURE DISCHARGE LAMP WITH BASE AND RELATED LAMP |
| US4687965A (en) * | 1985-03-07 | 1987-08-18 | U.S. Philips Corporation | Capped electric lamp |
| US4751422A (en) * | 1986-03-18 | 1988-06-14 | U.S. Philips Corporation | Tubular electric incandescent lamp |
| US4928210A (en) * | 1986-10-24 | 1990-05-22 | Kabushiki Kaisha Hybec | Linear lamp unit with contacts at both ends |
| EP0281079A3 (en) * | 1987-03-05 | 1990-06-27 | Kabushiki Kaisha Toshiba | Low pressure discharge lamp |
| JPS63186046U (en) * | 1987-05-25 | 1988-11-29 | ||
| JPS6412458A (en) * | 1987-07-06 | 1989-01-17 | Koito Mfg Co Ltd | Electric lamp with base |
| DE3837511A1 (en) * | 1988-11-04 | 1990-05-10 | Philips Patentverwaltung | MOTOR VEHICLE HEADLAMP LAMP AND METHOD FOR THEIR PRODUCTION |
| JP2655196B2 (en) * | 1990-03-28 | 1997-09-17 | 東芝ライテック株式会社 | Low pressure discharge lamp and display device using the same |
| DE69106996D1 (en) * | 1990-09-28 | 1995-03-09 | Philips Electronics Nv | Socketed high-pressure discharge lamp and lamp holder for this lamp. |
| US5221874A (en) * | 1990-10-25 | 1993-06-22 | North American Philips Corporation | Electric lamp having lead-throughs clamped and welded to lamp cap contacts |
| DE4139905A1 (en) * | 1991-12-04 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Plug connector for gas discharge lamp connected in spotlight holder - has plastics material plug housing releasably attached to spotlight holder contg. HV cable leads separated from each other by plastics material |
| US5296780A (en) * | 1992-03-20 | 1994-03-22 | Gte Products Corporation | Arc discharge lamp having cementless right-angle base members |
| DE69400810T2 (en) * | 1993-03-31 | 1997-04-30 | Philips Electronics Nv | Electric lamp |
| US5709450A (en) * | 1995-12-27 | 1998-01-20 | General Motors Corporation | High intensity discharge automotive lamp socket |
| WO1997037369A1 (en) * | 1996-03-29 | 1997-10-09 | Moriyama Sangyo Kabushiki Kaisha | Light source and socket |
| DE19616409A1 (en) * | 1996-04-24 | 1997-10-30 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electric lamp |
| JPH09306203A (en) * | 1996-05-10 | 1997-11-28 | Koito Mfg Co Ltd | Socket for discharge lamp bulb |
| US5696424A (en) * | 1996-09-26 | 1997-12-09 | Osram Sylvania Inc. | Alignment structure for headlamp capsule |
| US6270235B1 (en) * | 1999-05-14 | 2001-08-07 | Osram Sylvania Inc. | Lamp and lamp based assembly |
-
1999
- 1999-11-20 DE DE19955979A patent/DE19955979A1/en not_active Withdrawn
-
2000
- 2000-09-16 AT AT00969258T patent/ATE258716T1/en not_active IP Right Cessation
- 2000-09-16 DE DE50005152T patent/DE50005152D1/en not_active Expired - Lifetime
- 2000-09-16 EP EP00969258A patent/EP1206791B1/en not_active Expired - Lifetime
- 2000-09-16 US US10/130,514 patent/US6946782B1/en not_active Expired - Lifetime
- 2000-09-16 WO PCT/EP2000/009064 patent/WO2001039237A1/en active IP Right Grant
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1760395A1 (en) * | 2005-08-29 | 2007-03-07 | J.S.T. Mfg. Co., Ltd. | Fluorescent tube attaching structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50005152D1 (en) | 2004-03-04 |
| US6946782B1 (en) | 2005-09-20 |
| DE19955979A1 (en) | 2001-05-23 |
| EP1206791A1 (en) | 2002-05-22 |
| WO2001039237A1 (en) | 2001-05-31 |
| ATE258716T1 (en) | 2004-02-15 |
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