EP0730785A1 - Borne de connexion pour installations electriques - Google Patents

Borne de connexion pour installations electriques

Info

Publication number
EP0730785A1
EP0730785A1 EP95931202A EP95931202A EP0730785A1 EP 0730785 A1 EP0730785 A1 EP 0730785A1 EP 95931202 A EP95931202 A EP 95931202A EP 95931202 A EP95931202 A EP 95931202A EP 0730785 A1 EP0730785 A1 EP 0730785A1
Authority
EP
European Patent Office
Prior art keywords
contact
terminal according
leaf spring
housing
conductor
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.)
Granted
Application number
EP95931202A
Other languages
German (de)
English (en)
Other versions
EP0730785B1 (fr
Inventor
Rainer Linke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albert Ackermann GmbH and Co KG
Original Assignee
Albert Ackermann GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Albert Ackermann GmbH and Co KG filed Critical Albert Ackermann GmbH and Co KG
Publication of EP0730785A1 publication Critical patent/EP0730785A1/fr
Application granted granted Critical
Publication of EP0730785B1 publication Critical patent/EP0730785B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

Definitions

  • the invention relates to a connection terminal for electrical installations, in particular for information technology, with a contact piece which can be moved in a housing and which, under the force of a spring, can be pressed against a guide for a conductor which is open towards the contact piece, the contact Takt Sharing is part of a leaf spring held in the housing, which is provided with an opening which is arranged for guiding the conductor that an edge serves as a contact piece and can be applied to the conductor.
  • Terminals with actuation buttons are known. These generally consist of a U-shaped component which surrounds a guide channel for the conductor and forms the contact piece with the leg facing away from the feeler part, which under the force of a spring enters the guide channel for the conductor to make contact with the latter is pushed in.
  • connection terminals are relatively expensive to manufacture. Above all, they no longer permit reliable contacting if the diameters of the conductors become very thin, as is the case in particular in information and communication technology.
  • the space requirement of the known type is also relatively high. Therefore becomes a If a large number of connections are required, as is the case in communication technology, then there is a considerable space requirement for such connection terminals.
  • a connecting terminal of the type mentioned at the beginning (US-A-50 69 638).
  • a leaf spring clamped on one side in a housing opening, which has an opening (or a recess), the upper edge of which, as a contact piece, is in clamping contact with the conductor, which is on the other side against the wall of a guide in the housing is held. Since only one opening is provided for passing the conductor through with this type of construction, it becomes necessary to clamp the end of the leaf spring not provided with the opening firmly in the housing.
  • the invention has for its object to provide a terminal of the type mentioned in such a way that it can also be used for reliable contacting of thin conductors with as little space as possible.
  • the leaf spring has rectangular, aligned windows aligned with one another, and is placed with them in a curved shape on the guide for the conductors so that one of the windows as a clamping member for Attachment to the guide for the conductor and the other forms the contact piece with its edge, and that the curved leaf spring is inserted between the bottom of a shaft in the housing and an actuating button.
  • This configuration is extremely simple. However, it allows the realization of relatively high contact pressures because high elastic forces are available due to the use of a leaf spring and the contact piece has only a small contact area. This configuration is therefore particularly advantageous for contacting even thin conductors, which are also securely held in connection terminals according to the invention.
  • the conductor guide in each case consists of two parallel strip profiles provided with an approximately V-shaped cross section, which are connected to a connection contact.
  • the leaf spring with its window can be clamped to these strip profiles in a simple manner. With the edge of the second window forming the contact piece, a conductor inserted in the conductor guide can be contacted without problems on the one hand, but on the other hand also firmly pressed into the V-shaped recess of the strip profile and held there.
  • the actuation button in a further development of the invention, it is advantageous to provide the actuation button with insertion openings for the conductors to be connected, which are aligned with the longitudinal direction of the strip profiles. An additional space requirement transverse to the direction of actuation of the actuation key is therefore not necessary.
  • the leaf spring can be formed in one piece with a second leaf spring and can be provided with a separating cut running between the strip profiles.
  • this embodiment also allows the contacting of conductors with different diameters, which of course would also be possible if two leaf springs were used for the two strip profiles forming the conductor guide.
  • this latter version would be more complex both in production and in assembly.
  • connection contact can be formed in one piece with the strip profiles and can be provided with at least one latching lug for locking on the housing. This allows a relatively simple manufacture.
  • connection contact can be designed as a solder tab protruding from the housing. But he can also with Two contact tongues for direct plugging in of printed circuit boards can be seen, these contact tongues also being able to be arranged at 90 ° or 180 ° to the longitudinal direction of the conductor guides, ie to the longitudinal direction of the strip profiles. This measure enables the circuit boards to be inserted even at an angle to the direction of insertion for the conductors.
  • the housing on the side opposite the actuation button can be provided with a plug-in opening for mating conductors which are aligned with the conductor guides.
  • FIG. 1 is a perspective schematic partial view of a terminal block with two terminals according to the invention
  • connection terminal 2 shows one of the connection terminals of FIG. 1 in a broken perspective view of the interior of the connection terminal
  • FIG. 3 shows the cross section through a connecting terminal of FIGS. 1 and 2 in a section along the line III-III of FIG. 5,
  • FIG. 5 is a top view of the terminal strip of FIG. 1, the first of the terminals being shown without an actuation button,
  • FIG. 6 is a front view of the leaf spring used in the embodiment of FIGS. 1 to 5, 7 shows the side view of the leaf spring of FIG. 6 in the state prior to installation in the connection terminal,
  • FIGS. 1 to 5 shows the perspective illustration of the conductor guides used in the connection terminal of FIGS. 1 to 5 with the connection contact attached thereto in the form of a soldering lug
  • FIG. 9 shows a modified embodiment of a connecting terminal according to the invention, in which the connecting contact is in the form of two arranged contact tongues which form a fork-shaped receptacle and which serve for direct connection of printed circuit boards,
  • FIG. 11 shows a modified embodiment of the conductor guides with a soldering lug arranged in between
  • Fig. 13 shows a variant of the embodiment of Fig. 12, in which the tongues are offset by 180 ° with respect to the longitudinal direction of the conductor guides, i.e. are arranged parallel to those, and
  • connection terminal (1) which is part of a terminal strip (2) provided with a plurality of connection terminals, all of which are arranged parallel to one another in the terminal strip (2).
  • connection terminal (1) and a further connecting terminal (3) are shown. Since all connection terminals are of identical design, the following description is limited only to connection terminal (1).
  • each connection terminal and also the connection terminal (1) are arranged in a shaft-like cavity (4) within the housing of the terminal strip (2), and that an actuation button (5) is in Direction of the arrows (6) is slidably held in the shaft guide (4).
  • the actuation button (5) has two openings (7), which are circular in the embodiment and widen slightly conically upwards. These openings (7) are aligned to form two strip profiles (8) made of a conductive material, both of which (see also FIG. 8) are connected in one piece to a connection contact (9) designed as a soldering lug.
  • This connection contact (9) has a locking lug (11) in the area of the connecting web (10) to the two strip profiles (8) and can be used with this locking lug when inserting the part shown in FIG. 8 in the direction of the arrow
  • the actuation button (5) also has protruding lugs (13) which serve to actuate the actuation button
  • a leaf spring (14) (see FIGS. 6 and 7) is inserted between the actuation button (5) and the bottom (4a) of the shaft (4), which comes under pretension when it is inserted into the shaft (4) and is therefore subject to tension with its lower end on the floor (4a) and with its upper end on a projection (30) of the actuating button (5).
  • the leaf spring (14) is made in this case from two partial leaf springs (14a and 14b) separated from one another in their function by a separating cut (15), which are each provided with two windows (16 and 17) and are integrally connected to one another in their lower region.
  • the windows (16 and 17) are rectangular.
  • the windows (16) are significantly larger than the windows (17).
  • the side edges of the windows (16 and 17) are flush with one another, so that the windows (16 and 17) are also flush with one another.
  • the dimensions of the windows (17) are selected so that the upper and lower edges each jam firmly on the strip profiles (8) when the leaf spring (14), as can be seen from FIGS. 2 and 4, with both Windows (16 and 17) are placed on the strip profiles (8) in a curved shape such that the upper edge (16a) of each of the windows (16) and the two edges of the windows running parallel to the edge (16a) (17) rest on the strip profiles (8).
  • the strip profiles (8) are designed as conductor guides and are approximately in the form of channels with an approximately V-shaped cross section, in which the ends of conductors, not shown, for the purpose of contacting through the openings (7) of the actuation button ( 5) can be introduced.
  • the conductor ends then lie within the channel guide of the strip profiles (8) and are pressed firmly and securely against these strip profiles (8) by the edge (16a) (see FIG. 5) if the edges (16a) are not as shown in FIG. 5 shown, lie directly on the strip profiles (8), but on the outer surface of corresponding inserted conductors.
  • connection clamp according to the invention is automatically produced in a simple manner so that first the leaf springs in the bent state are placed on the associated strip profiles (8), and then the strip profiles with the leaf spring attached with their connection contact (9) the corresponding opening (17) (Fig. 4) of the shaft (4) are pushed in until the locking lug (11) snaps in and that the actuating button (5) is then placed, which also lugs behind with its lugs (13) to secure the position Projections of the shaft (4) engages.
  • the leaf spring is under tension in the shaft (4).
  • the button (5) When the button (5) is actuated, the leaf spring is bent downward with its upper part (the lower part can be firmly clamped to the strip profiles (8) with the window (17)), so that its edge (16a) , which thus also forms the contact piece, is removed from the strip profiles (8) and allows the insertion of a conductor end.
  • FIG. 9 shows a modification of the connecting terminal according to the invention in that no lugs (9) are integrally connected to the two strip profiles (8), but two contact tongues (18) forming a fork-shaped plug device, which serve as connecting contacts.
  • the contact tongues (18) do not protrude freely from the housing of the connecting terminal strip (2), but are held in a housing (2 ') of a terminal strip, which is also designed for a plurality of connecting terminals surrounds the ends of the contact tongues (18) which are guided in corresponding slots (19) in the housing (2 ').
  • the housing (2 ') also has an insertion slot (20) so that here inserted printed circuit boards can be directly contacted by the contact tongues (18).
  • 11 to 13 show design variants of a connection contact similar to FIG. 8 or similar to FIG. 10.
  • FIG. 11 shows the possibility that the soldering lug, which can also be a plug pin, directly between the two strip profiles (8) inserted and connected to them either in one piece or by welding.
  • the plug pin (21) here has the locking lug (11) for fastening the housing directly.
  • the design of the shaft must be adapted accordingly.
  • FIG. 12 shows a variant of the contact tongues of FIG. 10 insofar as the insertion tongues (22) project here at 90 ° to the longitudinal direction of the strip profiles (8).
  • direct contacting of printed circuit boards can be achieved by introducing the printed circuit boards perpendicular to the feed direction of the conductor ends to be connected.
  • FIG. 13 shows a variant in that the contact tongues (23) are offset by 180 ° with respect to the direction of insertion of the conductors, i.e. are arranged parallel to the strip profiles (8). Therefore, direct contact can be made by means of circuit boards from the same side from which the conductors are connected. Of course, the shape of the housing must be adapted accordingly to the contact tongues of FIGS. 12 and 13.
  • FIG. 14 also shows the possibility that, in addition to the two conductors (24 and 25), which have different diameters, and which can be inserted through the openings (7) of the actuation button (5) in the manner described above from the other side, the strip profiles (8) serving as conductor guides can be contacted by conductors (26) if the housing (2) of the connecting terminal strip is provided with openings (27) on the bottom of the shaft (4), which in turn run in alignment with the longitudinal direction of the strip profile (8).
  • the position securing of the strip profiles (8) must be solved by separate measures.
  • the position it would also be possible for the position to be secured via the leaf spring (14) or its parts (14a, 14b), which can take over the securing of the position of the strip profiles (8) with the windows (17).
  • an edge of the window (17) also serves to contact the conductor. It can be seen that the end of the conductor (26) is held between the lower edge of the window (17) and the strip profile (8). With this variant, it will be expedient to press away the edges of the window (17) which are initially firmly in contact with a suitable tool (28) before the conductor (26) is inserted. This embodiment is particularly recommended if, for example, sensitive and complex data processing devices are to be installed in areas to which there is still free access before the actual final assembly.
  • the data processing devices with appropriate connecting conductors can be placed on the connecting terminal according to the invention, so that at the time of final assembly only the fixed conductors (for example 24, 25) are connected to the connecting terminals in a simple manner and without tools can be.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Push-Button Switches (AREA)
  • Processing Of Terminals (AREA)
  • Cable Accessories (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)

Abstract

Les bornes de connexion connues comportant des boutons de commande et une pièce de contact pouvant être déplacée à l'encontre de la force exercée par un ressort, sont relativement encombrantes et complexes. Il est prévu d'utiliser comme pièce de contact une partie de ressort à lame courbe, pourvu d'au moins une ouverture (16) et placé avec cette ouverture au-dessus du guide des fils conducteurs (8), de manière à ce qu'un bord (16a) de l'ouverture serve de pièce de contact. Cette configuration permet la mise en contact de fils conducteurs minces.
EP95931202A 1994-09-23 1995-08-25 Borne de connexion pour installations electriques Expired - Lifetime EP0730785B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4433983 1994-09-23
DE4433983A DE4433983A1 (de) 1994-09-23 1994-09-23 Anschlußklemme für elektrische Installationen
PCT/EP1995/003362 WO1996009664A1 (fr) 1994-09-23 1995-08-25 Borne de connexion pour installations electriques

Publications (2)

Publication Number Publication Date
EP0730785A1 true EP0730785A1 (fr) 1996-09-11
EP0730785B1 EP0730785B1 (fr) 1998-04-15

Family

ID=6528990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95931202A Expired - Lifetime EP0730785B1 (fr) 1994-09-23 1995-08-25 Borne de connexion pour installations electriques

Country Status (11)

Country Link
US (1) US5895286A (fr)
EP (1) EP0730785B1 (fr)
JP (1) JPH09505938A (fr)
KR (1) KR100297522B1 (fr)
CN (1) CN1057407C (fr)
AT (1) ATE165189T1 (fr)
CA (1) CA2176831A1 (fr)
DE (2) DE4433983A1 (fr)
ES (1) ES2116765T3 (fr)
TW (1) TW281816B (fr)
WO (1) WO1996009664A1 (fr)

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US9948048B2 (en) * 2015-05-15 2018-04-17 Yazaki North America, Inc. Splitter terminal and connector
DE102015216632A1 (de) * 2015-08-31 2017-03-02 Te Connectivity Germany Gmbh Anordnung zum Herstellen einer elektrischen Verbindung zwischen einem Flachkontakt und einem Hochstromleiter
CN105870649B (zh) * 2016-05-25 2019-02-26 国网河南省电力公司济源供电公司 一种安全型针状快速连接头
CN106099417B (zh) * 2016-08-02 2019-02-22 马晓明 导电线接线夹
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JP6638759B2 (ja) * 2018-05-09 2020-01-29 富士電機機器制御株式会社 電気機器の接続構造
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JP7221804B2 (ja) * 2019-06-10 2023-02-14 矢崎総業株式会社 端子金具、及び、端子付き電線
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Also Published As

Publication number Publication date
DE4433983A1 (de) 1996-03-28
KR100297522B1 (ko) 2001-10-24
CN1135809A (zh) 1996-11-13
WO1996009664A1 (fr) 1996-03-28
DE59501910D1 (de) 1998-05-20
ES2116765T3 (es) 1998-07-16
TW281816B (fr) 1996-07-21
KR960706205A (ko) 1996-11-08
US5895286A (en) 1999-04-20
ATE165189T1 (de) 1998-05-15
EP0730785B1 (fr) 1998-04-15
CN1057407C (zh) 2000-10-11
CA2176831A1 (fr) 1996-03-28
JPH09505938A (ja) 1997-06-10

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