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
  • H01R11/28—End pieces consisting of a ferrule or sleeve
  • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries

Definitions

• the invention relates to a battery terminal connector having a housing of insulating material and with a terminal post hole to receive a battery terminal post as well as a cable hole which is preferably substan ⁇ tially perpendicular to the terminal post hole and serves to receive a contact device to establish con ⁇ nection between a battery cable and the terminal post and which extends through a threaded stub on the hous ⁇ ing, said contact device being slidable in the cable hole and capable of being pressed against a terminal post in the terminal post hole by means of a nut or a threaded bushing of insulating material, said nut or threaded bushing being screwed on to or into the threaded stub and having an inwardly extending flange which cooperates with a substantially radial face on the contact device.
• Such a battery terminal connector can be manufactured at a relatively low price because both the housing and the nut or the threaded bushing can consist of an in- expensive plastics material, e.g. acetal plastics.
• the object of the invention is to provide a battery terminal connector of the present type which, without any noticeable increase in the cost, allows a starter cable to be connected to the applied terminal con- nector.
• the contact device has a rearwardly extending conducting element which, in the applied position of the battery terminal connector, protrudes through the nut or the threaded bushing and over a portion of the cable insulation.
• the projecting portion of the contact device is directly accessible for connection of a starter cable, and the additional cost involved is just the material of the extension.
• the conducting rearwardly extending extension can expediently be constructed as stated in claim 2.
• the nut or the threaded bushing is formed with two or more preferably axial legs which extend rearwardly at least to the rear end of the preferably tubular extension of the contact device.
• the legs form a convenient finger grip for screwing on and off the nut, just as they permit the use of pliers or wrenches for tightening or loosening the nut, when said nut is not hexagonal, but cylindrical.
• fig. 1 is a longitudinal section through an embodiment of the battery terminal connector of the invention
• fig. 2 is a perspective vi ⁇ ew of a sleeve-shaped nut incorporated in it
• figs. 3, 4 and 5 show part of an amended embodiment of the contact device, seen from the top, from the end and in an elevated- longitudinal •section, respectively, and
• fig. 6 is a perspective view of a metal strip intended to be inserted in said part.
• the numeral 10 represents a substan ⁇ tially frustro-conical battery terminal connector housing which has a lateral extension 11 and consists of insulating material, e.g. a suitable, strong plas- tics material.
• the housing has a terminal post hole 12 to receive a battery terminal post 13 shown in broken lines and a cable hole 14 which is substantially perpendicular to said post and extends through the lateral extension 11 and through an exteriorly threaded pipe stub 15 which is integral with the extension.
• the cable hole 14 slidably receives a contact device consisting of two members, viz. a cylindrical contact element 16 and a sleeve 17, both made of lead or alloyed lead.
• the front end face 18 of the contact element 16 has a cone surface shape corresponding to the shape of the battery terminal post.
• the contact element On the rear end face 19 the contact element has a conical tip 20.
• the front end of the sleeve 17 is formed with an inner conical face 21, and the sleeve has an outer annular flange 22 somewhat spaced from both ends.
• the nut 23 has moreover two rear- wardly extending legs 28 which, in the applied position of the terminal connector as shown in fig.
• a battery cable with an insulating sheath 25 whose end portion is stripped, is mounted in that the exposed threads 26 - after the nut 23 and the sleeve 17 have been pushed over the cable - are pressed over the conical tip 20 of the contact element 16 so that the threads will be spread and distributed over the surface of the tip.
• the sleeve 17 is now pushed forwardly over the threads, and the nut 23 is screwed on to the stub 15 and tightened so that the cable threads will be fixed between the conical face 21 of the sleeve 17 and the conical face of the contact element 16, and the contact element 16 will be clamped against the terminal post 13.
• the rear end portion 27 of the sleeve 17, which pro ⁇ trudes through the tubular portion of the nut 23, makes it possible to establish connection to the bat ⁇ tery terminal post, e.g. with a starter cable, without removing the terminal connector.
• the protruding sleeve portion has relatively modest dimensions and is in a retracted position with respect ot the rest of the battery terminal connector, reduces the risk of short-circuit caused by lost or carelessly placed tools or the like.
• This risk is additionally reduced by the rearwardly extending legs 28 of the nut which have such a width that they cover a con ⁇ siderable portion of the surface of the sleeve.
• This in combination with the thickness of the legs has the effect that only under very unfortunate circumstances can tools or other metallic articles long enough to cause short-circuits simultaneously touch the lead sleeves of both terminals.
• the conductive sleeve 17 can optionally be replaced by such a sleeve 29 of insulating material as is shown in figs. 3-5.
• This sleeve is constructed in the same • manner as the sleeve 17, except that its inner wall is formed with an axial through-going groove 30 to receive such a metal strip 31 as is shown in fig. 6, and that it has a cut-out 32 at its outer end adjacent the groove 30.
• the metal strip 31 is of such length as to extend through the cut-out 32 and a distance beyond the rear edge of the sleeve so that it is readily accessible for connection of a starter cable.
• the battery terminal connector of the invention may be designed in many other ways than those shown and described in the foregoing.
• the contact device might be made in one piece and moulded around the exposed thread ends of the cable.
• the pipe stub 15 might be internally threaded instead of ex ⁇ ternally, and in that case the nut 23 would be re ⁇ placed by a threaded bushing with external threads.
• the rearwardly directed extension 27 of the sleeve 17 does not have to be tubular, but might optionally be slitted or just consist of one or more rod-shaped or strip-shaped parts.
• the rearwardly extending legs of the nut may be formed in a manner other than the one shown in the drawing, and more than two such legs may be provided.

Landscapes

• Connection Of Batteries Or Terminals (AREA)

Priority Applications (3)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26065651

Family Applications (1)

Country Status (5)

Cited By (3)

Citations (2)

• 1985
  • 1985-02-28 DE DE8585901387T patent/DE3564061D1/de not_active Expired
  • 1985-02-28 EP EP85901387A patent/EP0172899B1/en not_active Expired
  • 1985-02-28 WO PCT/DK1985/000023 patent/WO1985004052A1/en active IP Right Grant
  • 1985-10-28 NO NO854296A patent/NO854296L/no unknown
  • 1985-10-29 FI FI854246A patent/FI75452C/fi not_active IP Right Cessation

Patent Citations (2)

Also Published As

Similar Documents

Legal Events