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
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
  • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
  • H01R13/42—Securing in a demountable manner
  • H01R13/422—Securing in resilient one-piece base or case, e.g. by friction; One-piece base or case formed with resilient locking means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
  • H01R9/22—Bases, e.g. strip, block, panel
  • H01R9/24—Terminal blocks
  • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
  • H01R9/22—Bases, e.g. strip, block, panel
  • H01R9/24—Terminal blocks
  • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
  • H01R9/2608—Fastening means for mounting on support rail or strip

Definitions

• Electrical terminal in particular terminal, with a housing and
• the present invention relates to an electrical terminal, in particular terminal block, with a housing and a busbar held on the housing according to the preamble of claim 1.
• the known pin terminal has a housing and a bus bar held on the housing. Further, the known terminal comprises a fastening screw or a fastening nut, which cooperates in the use position of the electrical terminal with a corresponding nut or screw such that an electrically connected to the busbar electrical conductor between the nut or screw and the busbar is clamped.
• the present invention has for its object to provide an electrical terminal in which the torque transmission from the mounting screw or - nut is improved on the housing.
• An essential advantage of the electrical terminal according to the invention is, in particular, that the torque transmission from the fastening screw or nut to the housing is improved. Characterized in that in the mounting position of the electrical terminal of the screw head of the fastening screw on the or the fastening nut on the outer periphery in the direction perpendicular to the central axis of
• CONFIRMATION COPY Fixing screw or nut is completely enclosed by the housing, wherein the housing is formed in the contact area corresponding to the outer contour of the fastening screw or nut, the contact surface between the fastening screw or nut and the housing is maximized, so that via the fastening screw or Nut can be passed in the electrical terminal torque introduced to the housing, while reducing the mechanical stress in the individual contact surface.
• larger torques can be realized in the electrical connection of an electrical conductor to the busbar of the electrical terminal, without damaging the case of the electrical terminal or even destroy it. This is especially important in the case of the so-called bolt connection terminals, since these are selected for electrical connection tasks, which require, in particular, robust electrical and mechanical contact and extensive maintenance freedom.
• the electrical terminal according to type, material and dimensioning freely selectable within wide suitable limits. This also applies to the fastening screw or nut and the corresponding nut or screw. In particular, it makes sense for cost reasons to resort here to standardized screws and nuts. It is particularly advantageous if the fastening screw or nut and the corresponding nut or screw as hexagon screws u. - Are formed nuts, as they are particularly robust and readily available.
• the housing has a securing means which fixes the busbar in the mounting position of the electrical terminal in a direction perpendicular to the central axis of the fastening screw or nut. In this way, the correct position of the bus bar is ensured in the mounting position of the electrical terminal in this direction. It when the housing has securing means which fixes the busbar in the mounting position of the electrical terminal in both directions perpendicular to the central axis of the fastening screw or nut is particularly advantageous. As a result, the busbar is fixed in the plane perpendicular to the central axis of the fastening screw or nut.
• a particularly advantageous development provides that a securing tab is arranged on the housing, wherein the securing tab can be transferred from an open position to a securing position and in the securing position, the busbar in the mounting position of the electrical terminal in the direction parallel to the central axis of the fastening screw or nut is fixed between the housing and the securing tab.
• the securing tab ensures the correct position of the busbar in the operating position of the electrical terminal.
• the position of use of the electrical terminal is the position in which the electrical conductor is in electrically conductive connection with the busbar of the electrical terminal, namely between the nut or screw and the busbar is clamped.
• the securing tab for this type, material and arrangement within wide suitable limits freely selectable.
• the securing tab has a pressing projection, wherein the pressing projection biases the busbar in the securing position of the securing tab against the housing.
• the securing tab has a locking means which cooperates in the securing position of the securing tab with a corresponding thereto designed lock of the housing such that the securing tab is fixed in the securing position.
• the connection formed by the locking means and the lock can be designed to be both detachable and non-detachable.
• the respective suitable connection technology, such as the latching connection, the skilled person from the known connection techniques select as needed.
• a further advantageous embodiment provides that the nut or screw is fixed to the housing. In this way, even if the electric terminal has not yet been transferred to the use position, the nut or screw is also effectively prevented from being lost.
• the electrical terminal according to the invention can be executed as a single terminal. In many applications, however, it is necessary to electrically connect several electrical terminals together. In order to align the individual electrical terminals to each other spatially, mounting rails are usually used. Therefore, an advantageous development provides that the electrical terminal has a connecting means with which the electrical terminal can be held on a support rail.
• the housing has an electrical insulating wall, wherein the electrical insulating wall electrically isolated from each other adjacent electrical terminals.
• the required tracking resistance is realized in a structurally particularly simple manner. This is especially true for embodiments in which the electrical terminal must be connected to electrical conductors that do not have insulated terminals or the like.
• Fig. 1 shows a first embodiment of an electrical according to the invention
• Clamp in a partially exploded view 2 shows the first embodiment in the mounting position of the electrical terminal in partial representation, wherein the securing tab is shown in the open position,
• Fig. 3 shows the first embodiment in the position of use of the electrical
• Terminal in partial representation, wherein the securing tab is shown in the securing position
• Fig. 4 shows a second embodiment of an electrical according to the invention
• FIG. 1 a first embodiment of an electrical terminal according to the invention is shown.
• the electrical terminal is designed here as a terminal block. It has a housing 2 and a busbar 4 held on the housing 2, and a fastening nut 6 which, in the position of use of the electrical terminal shown in FIG. 3, cooperates with a screw 8 corresponding thereto in such a way that an electrical connection to the busbar 4 is provided connecting electrical conductor, which is not shown here, is clamped between the screw 8 and the busbar 4.
• the fastening nut 6 is here as a hexagon nut and the screw 8 is designed here as a hexagon screw.
• the housing 2 is made of an electrical insulating material, namely a plastic. Suitable plastics for this purpose are known to the person skilled in the art.
• the present electrical terminal has two connection sides, so that electrical conductors, not shown, are connectable to the busbar 4 on both sides of the electrical terminal. Since these are structurally identical, the embodiments apply analogously to one side of the connection for the other connection side. However, the invention is not limited thereto. In principle, it is possible that both fewer and more connection sides or connection points are provided.
• the fastening nut 6 is completely enclosed by the housing 2 at its outer circumference in the direction perpendicular to the central axis 10 of the fastening nut 6, wherein the housing 2 in the contact region corresponds to the outer contour of the fastening element. is formed nut 6.
• the mounting nut 6 in the assembly of the electrical terminal so when they are transferred to the mounting position shown in Fig. 2, in a molded to the outer contour of the mounting nut 6 receptacle 12 in the Housing 2 in the leaf level from above, ie in the direction parallel to the central axis 10 of the fastening nut 6, introduced.
• the receptacle 12 is formed corresponding to the outer contour of the fastening nut 6, that is to the outer periphery in the direction perpendicular to the central axis 10 of the fastening nut 6.
• the contact surfaces are 6.1 of the mounting nut 6 and the contact surfaces 12.1 of the receptacle 12 side by side substantially without play, so that in the attachment of the electrical conductor, not shown by the screw 8 and thus the fastening nut 6 introduced into the electrical terminal torque in the desired manner is forwarded into the housing 2.
• Substantially no game here means that only so much play is provided that the fastening nut 6 can be introduced into the receptacle 12 without difficulty during the transfer of the electrical terminal in the mounting position. Possibly. is this, depending on the desired application, also tool insert required to realize, for example, a closer fit of the mounting nut 6 in the receptacle 12 can.
• the housing 2 has here first securing means 2.1 and second securing means 2.2, which fix the busbar 4 in the mounting position of the electrical terminal in one direction perpendicular to the central axis 10 of the fastening nut 6.
• the first securing means 2.1 is formed as two housing projections, and is in the mounting position of the electrical terminal with two corresponding grooves 4.1 in the busbar 4 in engagement. As a result, the busbar 4 is fixed in the mounting position of the electrical terminal in the longitudinal direction of the busbar 4.
• the second securing means 2.2 is designed as two housing elevations and is in the mounting position of the electrical terminal with the longitudinal edge of the busbar 4.2 ne 4 engaged. As a result, the busbar 4 is fixed in the mounting position of the electrical terminal in the transverse direction of the busbar 4.
• a securing tab 14 is provided here.
• the securing tab 14 can be arranged on the housing 2 in any suitable manner known to the person skilled in the art.
• the securing tab 14 is integrally formed on the housing 2, that is an integral part of the housing 2.
• the securing tab 14 can be transferred from an opening position illustrated in FIGS. 1 and 2 into a securing position shown in FIG. 3.
• the securing tab 14 is pivoted about a pivot axis 14.1.
• the busbar 4 is fixed in the mounting position of the electrical terminal in the direction parallel to the central axis 10 of the fastening nut 6 between the housing 2 and the securing tab 14.
• the securing tab 14 has three Anpressvorsprünge 14.2, wherein the Anpressvorsprünge 14.2 bias the busbar 4 in the securing position of the securing tab 14 against the housing 2.
• the pressing projections 14.2 are formed like a ramp, so that the transfer of the securing tab 14 from the open position into the securing position is made possible with less effort.
• the securing tab 14 additionally has a locking means 14.3 here, which cooperates in the securing position of the securing tab 14 with a correspondingly formed lock 2.3 of the housing 2 such that the securing tab 14 is fixed in the securing position.
• the locking means 14.3 is designed as two locking cams and the lock as two latch traps, wherein the locking means 14.3 and the lock 2.3 in the securing position of the securing tab 14 here produce a releasable latching connection.
• other solvable and non-detachable connection techniques are conceivable which the person skilled in the art knows and will select depending on the application.
• the electrical terminal of the first embodiment is designed as a terminal block. Such terminals are usually mounted on mounting rails, so that the electrical terminal of this embodiment additionally comprises a connecting means 16 with which the electrical terminal is halterbar to a support rail, not shown.
• the connecting means 16 is formed here as an outer contour of the underside of the housing 2, namely as a longitudinal profile, wherein the connecting means 16 for attachment to the support rail in the art known type is positively engageable with this engageable.
• the housing 2 has an electrical insulating wall 2.4, wherein the electrical insulating wall 2.4 electrically isolated from each other adjacent electrical terminals. Since two connection sides are present in the present embodiment, two insulating walls 2.4 are provided accordingly.
• FIG. 4 A second embodiment of an electrical terminal according to the invention is shown in Fig. 4.
• the screw 8 is not designed here as a hexagon screw, but as a Phillips screw.
• the second embodiment corresponds to the first, so that reference may be made to the above statements.
• Identical or corresponding components are identified by identical reference numerals.
• the fastening nuts are not shown here.
• the invention is not limited to the illustrated embodiments.
• a fastening screw and a nut corresponding thereto can also be used.
• the skilled person will make the appropriate choice depending on the application.

Landscapes

• Connections Arranged To Contact A Plurality Of Conductors (AREA)
• Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43992795

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (5)

Citations (4)

Family Cites Families (10)

• 2009
  • 2009-12-11 DE DE102009057854A patent/DE102009057854A1/de not_active Withdrawn
• 2010
  • 2010-11-23 CN CN201080056122.2A patent/CN102652381B/zh active Active
  • 2010-11-23 JP JP2012542383A patent/JP5475142B2/ja not_active Expired - Fee Related
  • 2010-11-23 US US13/514,107 patent/US9083093B2/en not_active Expired - Fee Related
  • 2010-11-23 BR BR112012013806A patent/BR112012013806A2/pt not_active IP Right Cessation
  • 2010-11-23 EP EP10784704.8A patent/EP2510585B1/de not_active Not-in-force
  • 2010-11-23 WO PCT/EP2010/007080 patent/WO2011069600A1/de active Application Filing

Patent Citations (4)

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