EP1014495B1 - Ressort de connexion - Google Patents
Ressort de connexion Download PDFInfo
- Publication number
- EP1014495B1 EP1014495B1 EP99420245A EP99420245A EP1014495B1 EP 1014495 B1 EP1014495 B1 EP 1014495B1 EP 99420245 A EP99420245 A EP 99420245A EP 99420245 A EP99420245 A EP 99420245A EP 1014495 B1 EP1014495 B1 EP 1014495B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- branch
- supporting arm
- spring
- zone
- pinch
- 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.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
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
Definitions
- the present invention relates to a connection spring making it possible to make an electrical connection of a stripped wire in a terminal block for electrical conductor.
- the pinch branch is moved to allow insertion of the wire to be connected.
- a screwdriver usually comes to control this movement by acting at the level of the elastic bow.
- problems can occur when you connect the bare end of a driver. If the spring is not fully maneuvered, it may happen that introducing the end of the conductor, it comes to push the branch pinch the spring and fold it. Releasing the spring, this one just stick the poorly connected conductor against a wall of the housing and the operator believes that he has made a good connection. However, the contact electric is bad and the connection terminal can burn. This problem happens especially with massive drivers.
- connection terminal comprising the connection spring is usually placed in an insulating housing. It is sometimes provided in this housing to make a support for receiving the free end of the branch of pinching when the spring is bandaged. However, when the spring is, for one reason or another, deformed, it may be that the free end of the pinch branch, instead of coming to rest on the support made level of housing, come under this support. This results in a deformation even more important of the connection spring and / or a wedging of this spring in the housing.
- DE-C-19646103 shows a spring according to the preamble of claim 1.
- the present invention aims to provide a new connection device providing better guidance and support of the pinch branch when the spring is stressed and released.
- this device will be of a lower cost price than known spring devices, and can be adapted to the case where the bar link is placed above the compression spring, as shown in EP-0 735 629.
- the present invention proposes a spring of connection for making an electrical connection of a bare wire in an electrical conductor connection terminal made in a flat elastic material, which has a support arm intended for come to bear against a fixed conductive part of the terminal of connection as well as a rear branch, facing the branch support, connected by an elastic connection zone to the latter and the free end is bent towards the support branch to form a mobile pinch branch, presenting on the side of its free end, a substantially flat portion provided with an opening for the passage of the conductive fixed part and the stripped wire so that the edge of the opening located on the side of the free end of the pinch branch movable comes to maintain the stripped end of the wire in support against the part fixed conductor, a connecting zone connecting the two branches elastically.
- the support branch is provided with a zone of guide extending substantially parallel to the pinch leg, on the opposite side to the back branch.
- the guiding is carried out at the connection spring.
- This position minimizes the amount of material needed for realization of the guiding function.
- the surplus of material used to realize the guide area on the connecting spring can easily be less than the amount of material generally used for guidance on the conductive fixed part.
- the guidance zone can also easily extend over the entire width of the spring. This ensures support reliable pinch branch.
- connection spring In one embodiment of the connection spring, the area of guidance extends substantially perpendicular to the support branch.
- the guide zone is advantageously attached to the branch support distance from the free edge of the bearing branch bearing against the fixed conductive part.
- the guide zone advantageously comprises a window in which pass the conductive fixed part and the stripped wire to Connect.
- the guide zone is obtained by cutting at the level of the branch of support then by folding.
- the cut made in the support branch is advantageously U-shaped, the base of the U being located on the side of the free end of the support branch.
- connection terminal for an electrical conductor which comprises a connection spring such as described above.
- a connection terminal can take place in any type of electrical device requiring the connection of a wire. It can for example be a switch, a circuit breaker, etc .... such a connection terminal is particularly suitable for a block of junction. It is then arranged in an insulating housing. Preferably, this insulating housing has a support on which comes to support a free end of the guide region of the connection spring.
- FIGS 1 to 3 show a connection spring 2 according to the invention.
- This spring 2 is in the form of a loop presenting a fixed support branch 4 and a rear branch 5 which faces the branch 4.
- a connecting zone 8 connects the two branches 4 and 5 forming a loop.
- the free end of the rear branch 5 is folded towards the support branch 4.
- the folded part forms a pinch branch mobile 6, which extends substantially perpendicular to the branch 4.
- the spring is made of a strip of flat material, for for example, a strip of steel sheet.
- the pinch branch 6 has an opening of pinch 10 of substantially rectangular shape.
- This opening 10 has a pinch edge 12 on the free end side of the pinch branch, and a stop edge 14 on the side of the 8. As can be seen in FIGS. 4 and 5, this opening 10 is intended to receive the free end of the support branch 4, a connecting bar 16, as well as the stripped end of a wire 18.
- connection spring according to the invention also has a guide zone 20.
- the latter extends from the branch 4 substantially parallel to the pinch branch 6 and just below this branch 6.
- the area 20 extends outwardly of the spring 2, that is to say, on the side opposite to the connecting zone 8 and to the rear branch 5. This zone of guide 20 is oriented towards the outside of the loop.
- the guiding zone is substantially U-shaped. free ends of the branches of the U are attached to the support branch 4 thus defining an opening 22. The latter is intended to receive the bar 16 and the end of a stripped wire 18 (Figure 5).
- the guide zone 20 is obtained by making a cut in the flat material from which the spring 2 is made, then by a folding.
- the cutout is U-shaped and is made at the level of the support leg 4, the base of the U being oriented towards the free end of the strip of flat material, and the branches of the U being substantially parallel at the edges of this strip of material.
- the end of the material strip is then folded towards the outside of the loop so as to form the zone of guidance as can be seen in the drawing.
- the ends of the branches of the guide zone 20 are bent.
- Figures 4 and 5 show the spring described above in position in a connection terminal.
- the latter has a insulating housing made of synthetic material obtained by molding. Housing is provided in this housing to receive, in known manner, the spring of connection 2. Protrusions 24 are provided to guarantee a good positioning and a good hold of the connection spring in its housing.
- a support 26 is also provided in the insulating housing and is placed so that the free end of the guide zone 20 comes take support on this support 26.
- the link 16 is here very simple. Indeed, at the level of support branch 4, it is in the form of a flat blade. The support branch 4 comes to bear on one side of this blade that passes through openings 10 and 22. In the relaxed position shown in Figure 4, the pinch edge abuts against the bar 16.
- the spring 2 is put under constraint.
- the end of a screwdriver is used 28 that just pushes the pinch branch 6 so that the opening 10 of the pinch branch 6 comes next to the opening 22 of the guiding zone 20.
- the connection zone 8 then has tendency to return the connection spring 2 to its position shown on Figure 4.
- the two openings being opposite each other, the end of a bare wire 18 is introduced.
- the pinch branch 6 comes, as known, pinch the end of the wire bare against the bar 16.
- the fact of providing the guide zone on the spring itself makes it possible to save material, and thus to achieve a connection terminal with connection spring at a lower cost. In indeed, very little material is needed to achieve the guidance zone 20 compared to the amount of material needed to achieve a guiding the pinch branch at the conductive bar.
- the guide zone 20 is also easy to make. Indeed, a cutting and folding are sufficient for its realization.
- the guide zone 20 ensuring perfect guidance of the branch pinch, it virtually eliminates any risk of jamming the pinch branch when maneuvering it.
Description
Claims (8)
- Ressort de connexion (2) permettant de réaliser une connexion électrique d'un fil dénudé (18) dans une borne de raccordement pour conducteur électrique, réalisé dans un matériau élastique plat, qui présente une branche d'appui (4) destinée à venir en appui contre une partie fixe conductrice (16) de la borne de raccordement ainsi qu'une branche arrière (5), faisant face à la branche d'appui (4), reliée par une zone de liaison (8) élastique à cette dernière et dont l'extrémité libre est recourbée vers la branche d'appui (4) pour former une branche de pincement (6) mobile, présentant du côté de son extrémité libre, une partie sensiblement plane munie d'une ouverture (10) destinée au passage de la partie fixe conductrice (16) et du fil dénudé (18) de telle sorte que l'arête (12) de l'ouverture (10) située du côté de l'extrémité libre de la branche de pincement (6) mobile vienne maintenir l'extrémité dénudée du fil (18) en appui contre la partie fixe conductrice (16),
la branche d'appui (4) étant munie d'une zone de guidage (20) caractérisé en ce que la zone de guidage s'étend sensiblement parallèlement à la branche de pincement (6), du côté opposé à la branche arrière (5). - Ressort de connexion (2) selon la revendication 1, caractérisé en ce que la zone de guidage (20) s'étend sensiblement perpendiculairement par rapport à la branche d'appui (4).
- Ressort de connexion (2) selon la revendication 1 ou 2, caractérisé en ce que la zone de guidage (20) se rattache à la branche d'appui (4) à distance du bord libre de la branche d'appui (4) venant en appui contre la partie fixe conductrice (16).
- Ressort de connexion (2) selon l'une des revendications 1 à 3, caractérisé en ce que la zone de guidage (20) comporte une fenêtre (22) dans laquelle passe la partie fixe conductrice (16) et le fil dénudé (18) à connecter.
- Ressort de connexion (2) selon l'une des revendications 1 à 4, caractérisé en ce que la zone de guidage (20) est obtenue par découpe au niveau de la branche d'appui (4) puis par pliage.
- Ressort de connexion (2) selon la revendication 5, caractérisé en ce que la découpe réalisée dans la branche d'appui (4) est en forme de U, la base du U étant située du côté de l'extrémité libre de la branche d'appui.
- Borne de raccordement pour conducteur électrique, caractérisée en ce qu'elle comporte un ressort de connexion (2) selon l'une des revendications 1 à 6.
- Bloc de jonction comportant un boítier isolant et au moins une borne de raccordement selon la revendication 7, caractérisé en ce que le boítier isolant présente un support (26) sur lequel vient prendre appui une extrémité libre de la zone de guidage (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9816585A FR2787932B1 (fr) | 1998-12-23 | 1998-12-23 | Ressort de connexion |
FR9816585 | 1998-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1014495A1 EP1014495A1 (fr) | 2000-06-28 |
EP1014495B1 true EP1014495B1 (fr) | 2005-02-09 |
Family
ID=9534630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99420245A Expired - Lifetime EP1014495B1 (fr) | 1998-12-23 | 1999-12-15 | Ressort de connexion |
Country Status (7)
Country | Link |
---|---|
US (1) | US6196883B1 (fr) |
EP (1) | EP1014495B1 (fr) |
BR (1) | BR9905928A (fr) |
CA (1) | CA2293179C (fr) |
DE (1) | DE69923651T2 (fr) |
ES (1) | ES2237062T3 (fr) |
FR (1) | FR2787932B1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10039963C2 (de) * | 2000-08-16 | 2003-01-02 | Siemens Ag | Schneidklemmeinrichtung |
FR2815177B1 (fr) * | 2000-10-10 | 2005-02-11 | Entrelec Sa | Ressort de connexion et bloc de raccordement mettant en oeuvre un tel ressort |
DE10153170C1 (de) * | 2001-10-27 | 2003-02-20 | Phoenix Contact Gmbh & Co | Federkraftklemme |
DE10238661B3 (de) * | 2002-08-23 | 2004-02-26 | Lumberg Connect Gmbh & Co. Kg | Elektrische Kontaktiervorrichtung, insbesondere zur Verbindung einer Spannungsquelle mit einer elektronischen Schaltung |
DE102005056325B4 (de) * | 2005-11-25 | 2007-08-30 | Phoenix Contact Gmbh & Co. Kg | Printklemme für Leiterplattenanschluß |
TWM335050U (en) * | 2007-10-08 | 2008-06-21 | Hon Hai Prec Ind Co Ltd | Electrical connector |
EP2384788B1 (fr) | 2010-05-04 | 2012-09-26 | Sorin CRM SAS | Système sans vis de connexion rapide d'un connecteur de sonde à un générateur de dispositif médical implantable |
JP2013235681A (ja) * | 2012-05-07 | 2013-11-21 | Yazaki Corp | 電線挟持構造 |
US9943685B2 (en) | 2015-04-23 | 2018-04-17 | Cyberonics, Inc. | Lead engagement devices and methods for electrical stimulation and/or monitoring systems |
EP3206260A1 (fr) * | 2016-02-15 | 2017-08-16 | ABB Schweiz AG | Appareil électrique ayant une borne de connexion à pression avec une agrafe de support guidant et limitant la déformation élastique du ressort de contact |
DE102019125895B4 (de) * | 2019-09-26 | 2021-06-10 | Bjb Gmbh & Co. Kg | Anschlussklemme mit Einführtrichter |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1266194B (de) * | 1963-11-21 | 1968-04-11 | Maerklin & Cie Gmbh Geb | Kabelklemme fuer elektrisch betriebene Spielzeuge |
US3526870A (en) * | 1968-06-06 | 1970-09-01 | Minnesota Mining & Mfg | Spring tension connector for wire-wrap post |
US3961835A (en) * | 1975-01-28 | 1976-06-08 | The United States Of America As Representated By The Secretary Of The Navy | Elastic retaining clip |
CH667553A5 (de) * | 1985-10-09 | 1988-10-14 | Woertz Oskar | Schraubenlose elektrische klemme. |
DE3727091C1 (de) | 1987-08-14 | 1989-02-02 | Wieland Elek Sche Ind Gmbh F | Schraubenlose Anschluss- und/oder Verbindungsklemme |
DE4237733C1 (de) | 1992-11-09 | 1993-12-23 | Weidmueller Interface | Schraubenlose Anschlußklemme für elektrische Leiter |
GB9311559D0 (en) * | 1993-06-04 | 1993-07-21 | Amp Gmbh | Spring clamp actuator |
FR2732518B1 (fr) | 1995-03-29 | 1997-04-30 | Entrelec Sa | Agencement de connexion pour fils conducteurs electriques et module, notamment de type bloc de jonction, equipe d'un tel agencement |
DE29608178U1 (de) * | 1996-05-06 | 1996-07-25 | Weidmueller Interface | Zugfederanschluß mit einsteckbarem Anschlagelement |
DE19641206C2 (de) | 1996-09-25 | 1999-12-23 | Wago Verwaltungs Gmbh | Anschlußklemme für elektrische Leiter |
DE19646103C1 (de) * | 1996-11-08 | 1998-03-12 | Phoenix Contact Gmbh & Co | Federkraftklemme |
FR2761534B1 (fr) * | 1997-03-28 | 1999-05-28 | Entrelec Sa | Agencement de connexion electrique et module, notamment de raccordement, comportant un tel agencement |
DE19753076C1 (de) * | 1997-11-29 | 1999-08-19 | Lumberg Karl Gmbh & Co | Elektrische Anschlußklemme, insbesondere Anreihklemme |
-
1998
- 1998-12-23 FR FR9816585A patent/FR2787932B1/fr not_active Expired - Lifetime
-
1999
- 1999-12-14 US US09/459,894 patent/US6196883B1/en not_active Expired - Fee Related
- 1999-12-15 EP EP99420245A patent/EP1014495B1/fr not_active Expired - Lifetime
- 1999-12-15 ES ES99420245T patent/ES2237062T3/es not_active Expired - Lifetime
- 1999-12-15 DE DE69923651T patent/DE69923651T2/de not_active Expired - Lifetime
- 1999-12-21 BR BR9905928-2A patent/BR9905928A/pt not_active IP Right Cessation
- 1999-12-21 CA CA002293179A patent/CA2293179C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2787932B1 (fr) | 2001-03-09 |
DE69923651T2 (de) | 2005-06-30 |
US6196883B1 (en) | 2001-03-06 |
EP1014495A1 (fr) | 2000-06-28 |
CA2293179A1 (fr) | 2000-06-23 |
ES2237062T3 (es) | 2005-07-16 |
DE69923651D1 (de) | 2005-03-17 |
CA2293179C (fr) | 2004-07-20 |
FR2787932A1 (fr) | 2000-06-30 |
BR9905928A (pt) | 2000-08-08 |
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