WO1999049537A1 - Kabelschuh - Google Patents
Kabelschuh Download PDFInfo
- Publication number
- WO1999049537A1 WO1999049537A1 PCT/EP1999/002090 EP9902090W WO9949537A1 WO 1999049537 A1 WO1999049537 A1 WO 1999049537A1 EP 9902090 W EP9902090 W EP 9902090W WO 9949537 A1 WO9949537 A1 WO 9949537A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover plate
- cable lug
- base plate
- lug according
- damping disc
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
Definitions
- the invention relates to a cable lug for connecting a cable end to a screw terminal, with a flat, front U-shaped open contact fork, which merges rearward into a fork shaft which is provided with connecting means for a cable end, at least one as in the area of the contact fork Signal conductor trained base plate and at least one damping disc made of elastic material with at least one cover plate are sandwiched one above the other.
- Such cable lugs are preferably used as connection elements for electrical high-current connections of cable ends with screw-type connector pieces, which are referred to as screw or connection terminals. These are essentially formed from a threaded bolt which protrudes vertically from a contact surface and on the free end of which a nut or other clamping piece with an internal thread can be screwed on.
- screw or connection terminals These are essentially formed from a threaded bolt which protrudes vertically from a contact surface and on the free end of which a nut or other clamping piece with an internal thread can be screwed on.
- the contact fork is first pushed radially onto the screw bolt in the axial gap between the contact surface and the nut.
- the nut is then screwed tight, so that the contact fork between the nut and the contact surface of the terminal is clamped axially firmly.
- Loudspeaker cables with a large conductor cross-section are used at output terminals of amplifier output stages.
- the formation of the contact fork from a simple sheet metal plate or plate is insufficient for this application. Even if this is firmly tightened by hand in the connection terminal, the contact fork can be excited to mechanical vibrations by the tone-frequency signals transmitted with high current strengths by magnetostriction and also by structure-borne and airborne sound. These vibrations lead to relative movements of the contact surfaces lying on top of one another, which manifests itself directly in signal disturbances. Such disturbances are of course absolutely undesirable, especially when connecting high-quality sound transducers to amplifier output stages.
- the contact fork in the area of the contact surfaces be constructed as a sandwich-like construction from a base plate, an elastomer disc and a cover plate.
- the base plate and the cover plate are formed as congruent sheet metal forks, between which a U-shaped flat rubber washer is clamped or glued in the area of the U-shaped contact surfaces.
- the contact surfaces braced against one another in the connection terminal are pressed resiliently against one another.
- the elastic bias ensures that the contact surfaces are pressed against each other resiliently, whereby the electrical transition is improved.
- a basic problem with the known cable lug is to fix the elastomer disc between the base plate and the cover plate in such a way that an optimal function is guaranteed under all operating conditions. This is because it is necessary that both a displacement of the elastomer disc as a whole, as well as a lateral squeezing out under axial pressure is effectively prevented.
- a Adhesion to the cover or base plate would be considerably stressed by elastic deformation. In addition, the rubber would still swell out laterally between the cover and base plates. The notch effect on the edges can damage the rubber material.
- the elastomer washer in the known cable lugs is also endangered in that it can be crushed by the pressure forces that occur when the terminal nuts are tightened when the gill nuts are tightened.
- the object of the present invention is to further develop a cable lug based on the prior art described at the outset in such a way that the functional properties and the durability are improved.
- improved vibration damping and protection of the elastomer washer against damage when tightening is to be achieved.
- the invention proposes, starting from the prior art explained at the outset, that the cover plate laterally engages over the damping disk.
- the design of the cover plate according to the invention provides that it has bends, webs or reinforcements which protrude towards the base plate and which run continuously or in sections along the outer edge in the front, U-shaped contact area. So that the elastomer washer is bordered on its side edges.
- the configuration according to the invention has the basic advantage that a lateral movement of the damping disc beyond the edge of the cover plate is prevented without an adhesive or the like being necessary. Due to the shape according to the invention, the damping disc is enclosed in a frame-like manner by the cover plate, so that it cannot move laterally beyond the edge of the cover plate. In addition, it is also protected against uncontrolled squeezing out when tensioning in the connection terminal.
- the damping disk is now additionally supported laterally.
- a spring preload in the pressing direction acts on the elastically deformable material of the damping disk, but also a hydraulic load in the areas enclosed laterally and at the top by the cover plate.
- Both the internal friction of the hydraulically stressed elastic material and especially the interface friction between the damping disc and the lateral areas of the cover plate ensure a considerably increased damping effect with respect to the relative movements of the cover plate to the base plate.
- the tendency to vibrate is reduced accordingly, which of course is particularly beneficial for use in sensitive areas, for example the connection of high-performance loudspeakers to amplifier amplifiers.
- the cover plate has, at least in the region of the contact fork, a peripheral side wall which runs down along its outer contour and projects over the damping disk in a box-like manner laterally up to the base plate.
- the cover plate which is deeply pulled down at the side, practically forms a box or case, which is closed at the side and at the top and in which the damping disc rests.
- the space enclosed in the box or case can be covered, ie closed, from below by the base plate.
- the side wall can reach down to a narrow gap to the upper edge of the base plate in the unloaded idle state when the base plate and cover plate are pressed together during tensioning, the box or case being closed at the same time.
- the base plate can be plunged like a piston from below into the space delimited laterally and above by the cover plate.
- the upper edge of the base plate can also be overlapped from above by the box or case formed by the cover plate.
- the base plate thus forms a piston or stamp which, when the contact fork is pressed together, acts on the damping disk which is now enclosed on all sides in the box.
- a particularly high damping effect with regard to mechanical vibrations is achieved by hydraulic, hydro-mechanical and hydro-pneumatic friction effects. In this way, unwanted contact vibrations, be it through sound or magneto or electrostriction, are practically completely prevented, which of course is particularly beneficial for signal transmission in high-end consumer electronics systems.
- the piston-like base plate can advantageously be implemented in that it is provided with a step in the area of the contact fork at the upper edge. This gives it an inverted T-shaped cross section. This can be immersed in the box or case formed by the cover plate until the edge of the side wall abuts the horizontal step surface. This creates a defined end stop and prevents crushing.
- the cover plate itself is preferably made of resilient material and is firmly connected to the steerer tube behind the U-shaped contact surfaces.
- the elastomer disc is then clamped between the cover and base plates.
- the cover plate is preferably made of hardened, tempered steel sheet, for example V4A. Due to its hardness and spring elasticity, this material is sufficiently dimensionally stable to absorb the pressure forces that occur during hydraulic tensioning of the elastomer disc. In addition, the surface is largely insensitive to scratches or other damage when connected to a terminal.
- the cover plate is preferably produced by deep-drawing a one-piece sheet metal blank, which is then hardened.
- the base plate and the fork stem connected in one piece consist of highly conductive metal. Highly pure, low-oxygen electrolyte copper or silver is preferably used for the signal conductor.
- the base plate and / or the cover plate are hard gold-plated as corrosion protection.
- the cover plate expediently has stop elements movable against the base plate. These are protruding spacers which limit the movement of the cover plate against the base plate, so that the damping disk cannot be accidentally crushed.
- the damping disk can basically consist of any elastomer materials, for example rubber or suitable plastics. By setting the Shore hardness, any mechanical properties and thus the damping effect can be specified. An elastic material with high internal damping is preferably selected.
- the damping effect can be influenced in an advantageous manner in that the cover plate and / or the damping disc and / or the base plate has hydraulic compensation cavities for the elastic material of the damping disc.
- compensation cavities for example, open recesses or through openings can be introduced into the cover plate or the base plate toward the interior of the case.
- the material of the damping disc can Compressed hydraulically.
- the friction values and thus the damping effect can be optimally adapted to the respective needs.
- the use of porous rubber materials is conceivable, or the creation of cavities in otherwise incompressible materials, with which the hydraulic or hydro-pneumatic damping effect can be predetermined.
- the elastomer material can also be injection molded directly onto the cover plate.
- damping disc is formed in one piece with the cover plate made of elastic material.
- cover plate made of elastic material.
- different functional areas are formed in the damping disk cover plate body.
- the aforementioned functional areas can advantageously be formed from materials which are integrally connected to one another and have different properties.
- the cover plate can first be made as a plastic injection-molded part from a material with greater hardness or rigidity, to which the softer damping disk is then injection-molded in one piece, preferably also by injection molding.
- Their flexibility can be adjusted by using a softer plastic or by shaping, for example by means of compensation cavities, foam-like porous areas or the like.
- the form-fitting elements of the cover plate, which engage in the damping disk, for example punched tabs or the like, ensure particularly secure fixing of the damping disk.
- the contact fork is expediently embedded in insulating material outside the contact surfaces, for example encapsulated with plastic. This is advantageous in terms of manageability.
- the connecting means on the steerer tube can have screw terminals for receiving a cable end or alternatively can be provided with crimp connectors, that is to say they can have squeezable clamping pieces.
- this support element resting on the steerer tube.
- the height of this support element which can be formed, for example, by bends, is dimensioned according to the thickness of the elastomer disc. This ensures that the cover and base plates remain largely parallel to each other when clamped.
- cover plate on the steerer tube is fixed in position on laterally projecting locking tines of the base plate. In this way you get a clear, correct assignment of top and base plate.
- Figure 1 shows a cable lug according to the invention in a perspective view.
- FIG. 2 shows a cable lug according to FIG. 1 in a partially cut open representation
- 3 shows a cross section through a contact fork according to the invention
- FIG. 4 shows a cross section through a contact fork according to the invention in a second embodiment
- FIG. 5 shows a cross section through a contact fork according to the invention in a third embodiment
- Fig. 6 shows a cross section through a contact fork according to the invention in a fourth embodiment.
- a cable lug according to the invention is shown obliquely from above in a perspective view and is provided as a whole with the reference number 1.
- This has a contact fork 2 which is open at the front in a U-shape and merges towards the rear into a fork shaft 3 which is embedded in an insulating and grip body 4 made of plastic.
- the steerer tube 3 For connection to a cable end, the steerer tube 3 is provided in its rear region with connecting means 5, which, however, are covered by the insulating body 4 except for the heads of the clamping screws. These are screw terminals, the connection opening for a cable end is located at the rear end of the insulating body 4.
- the contact fork 2 is formed from a U-shaped base plate 6, which forms the signal conductor, and a cover plate 7 arranged above it in the form of a likewise U-shaped box or suitcase, which is open at the bottom, between which a damping disc 8 made of elastic material, for example rubber, is enclosed. 1 is not visible and is therefore only indicated by dashed lines, the arrangement from FIG. 2 is particularly clear. This is the part of the contact fork 2 lying at the front in this illustration 10 shown cut open at an angle. The same reference numerals are used.
- the base plate 6, which is connected in one piece to the connecting means 5 via the steerer tube 3, consists of highly conductive metal, for example high-purity copper or silver.
- the cover plate 7 is designed as a tempered and hardened stainless steel deep-drawn part and, like the base plate 6, is preferably hard gold-plated. Alternatively, the cover plate 7 can also consist of another resistant material that is harder relative to the damping disk 8, for example plastic. In the area of the steerer tube 3, the cover plate 7 is firmly connected to it, so that it is practically vertical, i.e. is movable in the axial direction against the base plate 6.
- the cross section through the contact fork according to FIG. 2 is schematically shown enlarged again in FIG. 3. It can clearly be seen how the cover plate 7, the side walls 7a of which are pulled down to the upper edge of the base plate 6, forms a closed box for the damping disk 8.
- the base plate 6 has a T-shaped, stepped cross section, which can be plunged like a piston in the direction of the arrow into the box formed by the cover plate 7 up to the step edge.
- both the cover plate 7 and the base plate 8 are provided with hydraulic compensation cavities 9, which are partially formed as molded, partially as through openings.
- Damping disc 8 is also provided with such compensation cavities 9, which are partly designed as open recesses and partly as closed chambers.
- the elastomer material can also be made porous overall.
- Fig. 5 shows a similar embodiment, in which the base plate 6 has a stepped cross section. 11
- cover plate 7 and the damping plate 8 are in a one-piece cover plate
- Damping disc element 7/8 summarized.
- the inner area with the hydraulic compensation cavity 9 essentially fulfills the damping function, while the outer area takes over the cover plate function.
- the cover plate 7 can accordingly also consist of harder plastic material or the like, with which the softer material of the damping disk 8 is connected in one piece. Manufacturing takes place, for example, in two-component injection molding.
- All of the illustrated embodiments of the cable lug 1 according to the invention have in common that vibrations of the base plate 6 and the cover plate 7 against one another are effectively prevented by the damping effect of the enclosed damping disk 8.
- the damping disc 8 which is made of elastomer material, is deformed virtually hydraulically.
- the resulting hydraulic, hydro-mechanical and hydro-pneumatic friction results in effective damping. This can be adjusted within wide limits by the arrangement of hydraulic compensation cavities 9, into which the material of the damping disc 8 can flow when pressed together, and the selected hardness of the elastic material.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/647,035 US6319078B1 (en) | 1998-03-26 | 1999-03-26 | Cable lug |
AT99915711T ATE225570T1 (de) | 1998-03-26 | 1999-03-26 | Kabelschuh |
DK99915711T DK1066660T3 (da) | 1998-03-26 | 1999-03-26 | Kabelsko |
DE59902936T DE59902936D1 (de) | 1998-03-26 | 1999-03-26 | Kabelschuh |
EP99915711A EP1066660B1 (de) | 1998-03-26 | 1999-03-26 | Kabelschuh |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813370A DE19813370C1 (de) | 1998-03-26 | 1998-03-26 | Kabelschuh |
DE19813370.7 | 1998-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999049537A1 true WO1999049537A1 (de) | 1999-09-30 |
Family
ID=7862427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/002090 WO1999049537A1 (de) | 1998-03-26 | 1999-03-26 | Kabelschuh |
Country Status (9)
Country | Link |
---|---|
US (1) | US6319078B1 (de) |
EP (1) | EP1066660B1 (de) |
AT (1) | ATE225570T1 (de) |
DE (2) | DE19813370C1 (de) |
DK (1) | DK1066660T3 (de) |
ES (1) | ES2187150T3 (de) |
PT (1) | PT1066660E (de) |
TW (1) | TW417330B (de) |
WO (1) | WO1999049537A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2847386B1 (fr) * | 2002-11-19 | 2006-04-07 | Dip Sys | Module de cablage pour appareil de distribution electrique ou de controle industriel |
US6850059B2 (en) * | 2003-06-03 | 2005-02-01 | Delphi Technologies, Inc. | Vibration damping feature for a sensor assembly |
TWI390808B (zh) * | 2008-12-19 | 2013-03-21 | Chen Ching Fu | 接線端子 |
JP6082608B2 (ja) * | 2013-01-30 | 2017-02-15 | 株式会社ディーアンドエムホールディングス | 端子用取付けベース、スピーカ端子、およびオーディオ機器 |
CN103825116A (zh) * | 2014-02-20 | 2014-05-28 | 国网上海市电力公司 | 一种进户熔丝箱的零线桩头 |
US9559443B2 (en) * | 2014-11-14 | 2017-01-31 | Hubbell Incorporated | Electrical connectors having field modifiable lugs |
EP3637564B1 (de) * | 2018-10-08 | 2021-06-09 | Aptiv Technologies Limited | Verfahren zur herstellung einer elektrischen verdrahtungsanordnung |
US10637166B1 (en) * | 2018-10-10 | 2020-04-28 | Afl Telecommunications Llc | Modular conductor connector assemblies and connecting methods |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7913505U1 (de) * | 1979-05-10 | 1979-08-09 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart | Aluminium-Kabelschuh |
US5108320A (en) * | 1991-05-20 | 1992-04-28 | Kimber Ray L | Electrical lead wire terminal connector |
US5533913A (en) * | 1994-06-17 | 1996-07-09 | Connector Manufacturing Company | Electrical connector including molded plastic body |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1498293A (fr) * | 1966-03-11 | 1967-10-20 | Procedes Paulve Soc D Expl Des | Organe de connexion électrique |
US4136924A (en) * | 1977-12-07 | 1979-01-30 | Westinghouse Electric Corp. | Terminal connector |
EP0318844A1 (de) * | 1987-11-30 | 1989-06-07 | Tsuyoshi Mukai | Leiter-Verbindungsendstück |
JP2578848Y2 (ja) * | 1992-12-25 | 1998-08-20 | 住友電装株式会社 | ターミナルキャップ及び該ターミナルキャップのターミナルへの取付構造 |
-
1998
- 1998-03-26 DE DE19813370A patent/DE19813370C1/de not_active Expired - Fee Related
-
1999
- 1999-03-26 EP EP99915711A patent/EP1066660B1/de not_active Expired - Lifetime
- 1999-03-26 US US09/647,035 patent/US6319078B1/en not_active Expired - Fee Related
- 1999-03-26 AT AT99915711T patent/ATE225570T1/de not_active IP Right Cessation
- 1999-03-26 DK DK99915711T patent/DK1066660T3/da active
- 1999-03-26 ES ES99915711T patent/ES2187150T3/es not_active Expired - Lifetime
- 1999-03-26 PT PT99915711T patent/PT1066660E/pt unknown
- 1999-03-26 DE DE59902936T patent/DE59902936D1/de not_active Expired - Lifetime
- 1999-03-26 WO PCT/EP1999/002090 patent/WO1999049537A1/de active IP Right Grant
- 1999-04-08 TW TW088105645A patent/TW417330B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7913505U1 (de) * | 1979-05-10 | 1979-08-09 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart | Aluminium-Kabelschuh |
US5108320A (en) * | 1991-05-20 | 1992-04-28 | Kimber Ray L | Electrical lead wire terminal connector |
US5533913A (en) * | 1994-06-17 | 1996-07-09 | Connector Manufacturing Company | Electrical connector including molded plastic body |
Also Published As
Publication number | Publication date |
---|---|
ES2187150T3 (es) | 2003-05-16 |
DE59902936D1 (de) | 2002-11-07 |
ATE225570T1 (de) | 2002-10-15 |
TW417330B (en) | 2001-01-01 |
EP1066660A1 (de) | 2001-01-10 |
DE19813370C1 (de) | 1999-09-30 |
DK1066660T3 (da) | 2003-02-03 |
PT1066660E (pt) | 2003-02-28 |
EP1066660B1 (de) | 2002-10-02 |
US6319078B1 (en) | 2001-11-20 |
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