DK9600258U3

DK9600258U3 - Electrical connection system with tapered contacts

Info

Publication number: DK9600258U3
Application number: DK9600258U
Authority: DK
Inventors: Niels Peter Petersen
Original assignee: Niels Peter Petersen
Priority date: 1996-07-30
Filing date: 1996-07-30
Publication date: 1996-08-23

Description

DK 96 00258 U3DK 96 00258 U3

Frembringelsen omhandler et stikbart forbindelsessystem for elektriske ledere, der skal overføre et effektsignal med minimalt tab over en impedans på nogle få ohm - altså relativ høj strøm ved relativ lav spænding.The generation provides a pluggable electrical conductor connection system, which must transmit a power signal with minimal loss over an impedance of a few ohms - thus relatively high current at relatively low voltage.

Det elementøre krav for optimal effektoverførsel er en minimal kontaktmodstand over et areal, der er mindst lige så stort, eller større, end lederens tværsnit, og da kontaktmodstanden kun kan minimeres gennem et højt, ensartet kontakttryk over hele arealet, er konventionelle, stikbare kontakter uegnede, da der kun dannes elektrisk kontakt over en minimal del af kontaktelementets overflade.The elementary requirement for optimal power transfer is a minimum contact resistance over an area that is at least as large or greater than the conductor cross-section, and since the contact resistance can only be minimized through high, uniform contact pressure over the entire area, conventional pluggable contacts are unsuitable since only electrical contact is formed over a minimal portion of the contact element surface.

I den professionelle og den HiFi-orienterede del af audiobranchen forbindes forstærker og højttaler-system normalt med forholdsvis kraftige kabler, hvis ledere tilsluttes enkeltvis med fingerbetjente klemskruer på både forstærker- og højttalersiden, idet denne løsning trods alt er bedre end den, der opnås med konventionelle stik-Afatningsforbindelser.In the professional and hi-fi-oriented part of the audio industry, the amplifier and speaker system are usually connected to relatively powerful cables, whose conductors are connected individually with finger operated terminal screws on both the amplifier and speaker side, after all, this solution is better than that achieved with Conventional Connectors - Power Connectors.

Individuelt betjente klemskruer medfører imidlertid, at de afisolerede højttalerledninger, der i sammenhængen nok er forstørkeranlæggets mest kritiske forkablingselementer, udsættes for en vilkårlig deformation og mulig overlast - og med en heraf følgende, vilkårligt betinget, elektrisk forbindelse.However, individually operated clamping screws result in the stripped-down speaker wires, which in the context are probably the most critical wiring elements of the amplifier, are subjected to arbitrary deformation and possible overload - and with the resultant, arbitrary, electrical connection.

Specielt i HiFi-sektoren søger man hele tiden at forbedre højttalerkablets egenskaber med henblik på den optimale overførsel af effektsignalet, men selvom der ofres formuer på eksotiske kabelløsninger, er der ikke til dato præsenteret et tilslutningsprincip, der imødekommer de elementære krav.Especially in the HiFi sector, efforts are constantly being made to improve the characteristics of the speaker cable for the optimal transmission of the power signal, but although fortunes are sacrificed on exotic cable solutions, a connection principle that meets the basic requirements has not been presented to date.

Problemet kan midlertid løses effektivt ved brug af koniske kontaktelementer, og i det følgende beskrives et stikbart koblingssystem, der primært er udviklet til audiobranchen med henblik på at optimere kabeltilslutningerne mellem effektforstærker og højttaler.The problem can be solved temporarily effectively by the use of tapered contact elements, and the following describes a pluggable coupling system, which is primarily developed for the audio industry in order to optimize the cable connections between power amplifier and speaker.

De koniske anlægsflader medfører et stort, effektivt kontaktareal, og med en passende konusvinkel kan en minimal, aksial tilspændingskraft udløse et højt, ensartet kontakttryk over hele arealet.The tapered contact surfaces provide a large, effective contact area, and with a suitable taper angle, a minimal axial tightening force can trigger a high uniform contact pressure over the entire area.

Da volumenproduktionen omfatter en metode, der garanterer eksakte konuspasninger, bestemmes den resulterende kontaktmodstand af det anvendte materiale, og til dette brug fremstilles kontakte-lementeme af kobber eller messing, der påføres et tyndt lag guld - ikke af hensyn til ledningsevnen, men fordi guldet flyder let under mekanisk påvirkning og herved danner en gastøt kontaktzone mellem konuselementerne samtidig med, at det virker som en effektiv korrosionsbeskyttelse.As volume production involves a method that guarantees exact cone fit, the resulting contact resistance of the material used is determined and for this use the copper or brass contact elements are applied to a thin layer of gold - not for the sake of conductivity but because the gold flows easily under mechanical influence, thereby forming a gas-tight contact zone between the cone elements while also acting as an effective corrosion protection.

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Kontaktprincippet er kendt i forbindelse med præcisionsmåleudstyr til laboratoriebrug, hvor koniske propper danner forbindelse» mellem to adskilte kontaktstykker, der tilsammen udgør det modsvarende, koniske element, ligesom koniske kontakter i nogle tilfælde anvendes ved kabeltilslutningen fra elektrisk punkt- og kontaktsvejseudstyr eller andet apparatur, der kræver høje strømstyrker.The contact principle is known in connection with precision measuring equipment for laboratory use, where tapered plugs form a connection "between two separate connectors, which together form the corresponding conical element, and conical contacts are sometimes used in the cable connection from electrical point and contact welding equipment or other apparatus which requires high currents.

Anvendelseseksempler kendes imidlertid alene som individuelle enkeltløsninger, hvor den tilstræbte kontakt enten opnås igennem en kostbar fremstillingsproces af præcise, koniske kontaktflader, der blot: kræver en minimal isætningskraft - eller det modsatte, hvor værktøj lejlighedsvis tages i brug for at samle deformerede og/eller upræcise konusudformninger.However, application examples are known only as individual single solutions where the desired contact is achieved either through a costly manufacturing process of precise, tapered contact surfaces that simply: require minimal insertion force - or the opposite where tools are occasionally used to assemble deformed and / or imprecise konusudformninger.

Det er formentlig første gang, det koniske kontaktsystem foreligger i form af et volumenprodukt, der forener optimale elektriske egenskaber, små fysiske dimensioner og en høj grad af fleksibilitet med en konkurrencedygtig produktionsmetode, der garanterer den præcision, der er nødvendig for at realisere det koniske kontaktprincip og hermed sikre fuld kompatibilitet mellem vilkårlige konusenheder -uanset fremstillingstidspunktet.This is probably the first time that the tapered contact system exists in the form of a volume product that combines optimal electrical properties, small physical dimensions and a high degree of flexibility with a competitive production method that guarantees the precision needed to realize the tapered contact principle. and thereby ensure full compatibility between any cone units - regardless of the time of manufacture.

Kontaktsystemet beskrives alene i relation til den specifikke opgave, men ansøgningens omfang er ikke begrænset af konstruktionsdetailler, proportioner eller fysiske størrelser, der karakteriserer den beskrevne løsning.The contact system is described in relation to the specific task only, but the scope of the application is not limited by the design details, proportions or physical sizes that characterize the solution described.

Eksempelvis omfatter den aktuelle opgave enkeltpolede kontaktelementer, hvor hele armaturet virker som en omløber, der sørger for den aksiale tilspænding, men flerpolede udførelser med faste armaturer og andre tilspændingssystemer kunne udmærket realiseres indenfor frembringelsens rammer.For example, the present task comprises single-pole contact elements, in which the entire luminaire acts as a bypass providing the axial tension, but multi-pole designs with fixed luminaires and other tightening systems could very well be realized within the scope of production.

Endvidere er ledningsforbindelsen til konuskontakten her baseret på lodde- og/eller crimpteknik, hvor andre opgaver kunne betinge kraftigere konusdimensioner og hertil svarende termineringsmetoder, ligesom der ikke er taget specielt hensyn til en egentlig mekanisk aflastning af ledningen, da aktuel lederdimension versus termineringsmetode fuldtud sikrer den mekaniske holdbarhed.Furthermore, the conduit connection to the cone contact here is based on soldering and / or crimping technique, where other tasks could condition more powerful cone dimensions and corresponding termination methods, and no actual mechanical relief of the conduit has been taken into account, as current conductor dimension versus termination method fully ensures it. mechanical durability.

Det vedlagte tegningsmateriale kommenteres i det følgende, og det kan nævnes, at volumenproduktionen af konuskomponenteme er baseret på den præcision, der kan opnås med CNC-maskiner og egnede værktøjer.The enclosed drawing material is commented upon below, and it may be mentioned that the volume production of the cone components is based on the precision obtainable with CNC machines and suitable tools.

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Tegningsbilagene 1/3 - 2/3 og 3/3 viser systemets komponenter og muligheder i skala ca. 1,25.The drawings annexes 1/3 - 2/3 and 3/3 show the system components and options in scale approx. 1.25.

Bilag 1/3 omfatter systemets hovedkomponenter, hvorfig. 1 og 2 viser de isolerede kontaktelementer - hhv. fatning og stik - medens fig. 3 og 4 illustrerer de to armaturtyper, der kan samles aksialt På fig. 1 og 2 henviser A til de koniske kontaktelementer, B til isolationsmaterialet og C til kontaktelementernes lodde- og/eller crimpterminaler.Appendix 1/3 covers the main components of the system, whether. 1 and 2 show the insulated contact elements - respectively. socket and plug - while fig. 3 and 4 illustrate the two types of luminaires that can be assembled axially. 1 and 2, A refers to the tapered contact elements, B to the insulating material and C to the solder and / or crimp terminals of the contact elements.

Fig. 3 og 4 viser de to armaturtyper, der består af en kappe (A) og et påskruet dæksel (C), og da de to kapper kan skrues sammen med et indvendigt gevind i 3A og et modsvarende udvendigt i 4A, er de udformet forskelligt i området, hvor samlingen sker, men i øvrigt identiske - ligesom dæksleme.FIG. 3 and 4 show the two types of fittings consisting of a sheath (A) and a screwed-on cover (C), and since the two sheaths can be screwed together with an internal thread in 3A and a corresponding outer in 4A, they are designed differently in the area where the collection happens, but otherwise identical - just like the cover flaps.

Selvom enhederne principelt optræder som kabelarmaturer, kan begge typer umiddelbart anvendes som chassisarmaturer for fast montage ved hjælp af en klemflange, der er udviklet til formålet, og på fig. 3B og 4B vises sporet til en fjederbøjle, der monteres på armaturerne, når disse anvendes som fast monterede chassisarmaturer - omtales senere.Although the units are in principle acting as cable fittings, both types can be used immediately as chassis fittings for fixed mounting by means of a clamping flange developed for the purpose, and in FIG. 3B and 4B, the groove for a spring bracket mounted on the luminaires is shown when used as fixed chassis luminaires - discussed later.

Bilag 2/3 med figurerne 5,6,7 og 8 viser de isolererde kontaktelementer, der er monteret flydende i armaturerne for at sikre, at radialt og aksialt konusindgreb sker uden eventuel påvirkning fra armaturernes bearbejdningstolerancer, samt at kontaktelementer og armaturer endvidere er konstrueret på en sådan måde, at stikket eller fatningen valgfrit kan monteres i begge armaturtyper.Appendices 2/3 with Figures 5,6,7 and 8 show the insulated contact elements mounted floating in the luminaires to ensure that radial and axial cone engagement occurs without any influence from the machining tolerances, and that contact elements and luminaires are also constructed on in such a way that the plug or socket can be optionally mounted in both types of luminaire.

Bilag 3/3 indeholder figurerne 9,10,11 og 12 som en udvidet illustration af kontaktsystemets muligheder og fleksibilitet.Appendix 3/3 contains figures 9,10,11 and 12 as an extended illustration of the possibilities and flexibility of the contact system.

Fig. 9 og 10 er helbilleder af fig. 5 og 6 på tegningsbilag 2/3 og antyder, hvorledes begge armaturtyper (D) kan monteres som faste chassisarmaturer ved brug af klemflangen, fig. 12, og fjederbøjlen, der er vist i fig. 11.FIG. 9 and 10 are full views of FIG. 5 and 6 on drawing appendices 2/3 and indicate how both types of luminaires (D) can be mounted as fixed chassis luminaires using the clamping flange; 12, and the spring bracket shown in FIG. 11th

Fig. 10B viser klemflangen monteret på armaturets kappe, hvorved der dannes et chassisarmatur, som umiddelbart kan monteres bag tilslutningspladen (10A) på enten forstærker eller højttaler.FIG. 10B shows the clamping flange mounted on the sheath of the luminaire, thereby forming a chassis luminaire which can be immediately mounted behind the connection plate (10A) on either amplifier or speaker.

Når armaturet bruges til fast montage, må det isolerede kontaktelement ikke kunne dreje og påvirke den interne ledning, når det eksterne kabelarmatur tilsluttes, og derfor anbringes trådbøjlen i fig. 11 i sporet i fig. 9C og 10C således, at bøjlens radiale ombukning går igennem de radiale boringer i bunden af sporet og i kontaktelementets isolationsmateriale - se også bilag 2/3.When the fixture is used for fixed mounting, the insulated contact element must not be able to rotate and affect the internal cable when the external cable fixture is connected, and therefore the wire bracket in fig. 11 in the groove of FIG. 9C and 10C so that the radial bend of the hoop passes through the radial bores at the bottom of the groove and in the insulating material of the contact element - see also Appendix 2/3.

33

Claims

1. A plug-in electrical conductor connection system to transmit low-power power signals at low impedance - new to the use of tapered contact elements.

2. A plug-in connection system according to claim 1) - which is new by being constructed with single-pole, insulated plug and socket elements, which can optionally be mounted in two different types of luminaires, both acting as runners and connecting the axial axes at the junction.

3. A plug-in connection system according to claim 1) - which is new by being constructed with single-pole, insulated plug and socket elements, whose luminaires can be fixed in blocks and form multi-pole contact elements with central tension.

A plug-in connection system according to claims 1) - 2) and 3) - which is new in that different types of luminaires, which are in principle designed as cable luminaires, can be used immediately as fixed chassis luminaires when mounted in suitable clamping flanges.

5. A clamping flange which can be mounted freely in the longitudinal direction of the above-mentioned luminaires and thereby transforms these into chassis luminaires for fixed mounting in connection plates of varying thickness.

6. A spring bracket, mounted externally on fixed, single-pole luminaires, which, by engagement with the insulated contact element, prevents it from turning - but without limiting its axial and radial freedom.