EP0342385B1 - Lamelle de blindage - Google Patents

Lamelle de blindage Download PDF

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Publication number
EP0342385B1
EP0342385B1 EP89107248A EP89107248A EP0342385B1 EP 0342385 B1 EP0342385 B1 EP 0342385B1 EP 89107248 A EP89107248 A EP 89107248A EP 89107248 A EP89107248 A EP 89107248A EP 0342385 B1 EP0342385 B1 EP 0342385B1
Authority
EP
European Patent Office
Prior art keywords
edge
spring
strips
strip
screening
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
Application number
EP89107248A
Other languages
German (de)
English (en)
Other versions
EP0342385A2 (fr
EP0342385A3 (en
Inventor
Gerhard Keller
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.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0342385A2 publication Critical patent/EP0342385A2/fr
Publication of EP0342385A3 publication Critical patent/EP0342385A3/de
Application granted granted Critical
Publication of EP0342385B1 publication Critical patent/EP0342385B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  

Definitions

  • the invention relates to a screen lamella for installation as a spring washer in a plug connector, with two opposite edge strips which are connected to one another by a plurality of curved spring strips which run transversely and are spaced apart from one another, the spring strips running curved in their strip plane.
  • Shield lamellas are used in connectors to establish a ground connection between the housing of the socket and the housing of the plug and to shield the line connection from external interference voltages. For this it is necessary that the shield lamella is able to make good electrical contact between the socket housing and the plug housing. On the other hand, it is necessary that the ground connection has only a low coupling resistance even after a large number of plug cycles of the plug connector.
  • the object of the present invention is to improve a screen lamella of the type mentioned at the outset in such a way that the coupling resistance of a connector remains sufficiently low even after several hundred mating cycles with the least possible surface wear.
  • An electrical connecting element is known from DE-AS-2501003 which provides strips which run transversely between two edge strips and have individual edges which have convexly curved edges on both sides. These strips are only twisted around their longitudinal axis, but not arched.
  • the advantage achieved by the invention lies in the fact that the individual spring strips are now not loaded exclusively on bending or exclusively on torsion, but rather on both bending and torsion. As a result, the spring characteristic of a spring strip is much weaker than in known umbrella slats, since two springs are now connected in series for each spring strip, namely a spiral spring and a torsion spring.
  • the space between two adjacent spring strips is crescent-shaped, so that the edge of a spring strip opposite the convexly curved edge is concavely curved.
  • the spring strip becomes narrower, which on the one hand reduces its bending stiffness and on the other hand increases the effective length of the spring strip.
  • edge strips connect tangentially to the spring strips, so that the planes of the opposite edge strips intersect. In this way, the edge strips rest on the inner connector housing with only one edge; the curvature of the feather strips thus continues in the edge strips.
  • This allows the effective length of the shielding lamella available for the deflection to be increased, since the length of the spring strip and additionally the widths of the two edge strips now take part in the bending process when the connector is plugged together.
  • the spring characteristic of the screen lamella is thereby further weakened in an advantageous manner.
  • At least one edge strip has recesses on its side facing away from the spring strip, in the region of the connection points of the spring strip. It is thereby achieved that the edge of the edge strip only bears against the inner connector housing with a uniform pressure at the points where no recesses are provided. As a result, the same volume resistances are partially promoted around the screen lamella.
  • At least one edge strip on its side facing away from the spring strip is formed with spaced and protruding retaining tongues.
  • These retaining tongues can be mounted on the internal connector housing so that the edge strip in question rests in a sliding seat on a receptacle of the internal connector housing. This further weakens the spring characteristic of the screen lamella.
  • the screen lamella is advantageously punched out of a sheet metal strip.
  • FIG. 1 a screen lamella 1 according to the invention for installation as a mass spring ring in a connector is shown in a perspective view.
  • FIG. 2 shows a development of the screen lamella 1 bent into a barrel-shaped twill in FIG. 1.
  • the screen lamella 1 has two circumferential, opposite edge strips 2 and 3 which are connected to one another by a plurality of spring strips 4 which run transversely and are spaced apart from one another.
  • the spring strips 4 are curved, as can be seen from FIGS. 1, 3 and 4, and on the other hand, as is particularly clear in FIG. 2, they run curved in their strip plane.
  • the curvature is designed such that the outer edge 5 of a spring strip 4 between the connection points 6 and 7 of the spring strip 4 to the opposite edge strips 2 and 3 is convex on one side is curved.
  • the opposite edge 8 of a spring strip 4 is concavely curved. It follows from this that the spaces 9 between two spring strips 4 assume a crescent shape.
  • the radius of curvature of the concavely curved edge 8 is chosen to be smaller than that of the convexly curved edge 5. This results in the spring strips 4 being narrower in the middle between the two edge strips 2 and 3 than in the area of the edge strips 2 and 3 and that the spaces 9 in the middle between the edge strips 2 and 3 are wider than in the vicinity of the edge strips 2 and 3.
  • the curvature of the spring strips 4 is so strong that the concave curved edge 8 in the middle between the edge strips 2 and 3 lies outside an imaginary line 10 which connects the connection points 6 and 7 of a spring strip 4 to one another.
  • An edge strip here the edge strip 2 of the screen lamella 1, has 7 recesses 11 on its side facing away from the spring strip 4 in the region of the connection points. These recesses 11 cause the edge of the edge strip 2 to be interrupted. On the same edge strip 2 are arranged on the side facing away from the spring strips 4 spaced from each other and projecting from the edge strip 2 holding tongues 12.
  • edge strips 2 and 3 merge tangentially into the spring strips 4, so that the planes E1 and E2 of the edge strips 2 and 3 intersect.
  • the screen lamella 1 is punched out of a sheet metal strip in accordance with the blank shown in FIG. 2. Then the screen lamella 1 is provided with a curvature (see FIGS. 3 and 4). Then the holding tongues 12 are bent by approximately 90 ° and the sheet metal strip is bent round, so that the screen lamella has the barrel shape shown in FIG. 1 Takes shape. In this state, the screen slats are sold as supplier parts for connectors. The function of the shield lamella is therefore explained in more detail below on the basis of the installation in a plug connector.
  • FIG. 3 shows an inner housing part 13 of a connector, with a lateral surface 14 and an adjoining flange part 15.
  • the lateral surface 14 is delimited on the one hand by a stop 16 and on the other hand by the flange part 15.
  • a recess is formed in the flange part 15, which is delimited radially on the outside by a further stop 17.
  • the screen lamella 1 is now placed on the housing part 13 so that the two edge strips 2 and 3 each rest on the lateral surface 14 with their edge.
  • the holding tongues 12 are held in the recess of the flange part 15 and allow the edge strip 2 to dodge in the axial direction of the housing part 13 (cf. FIG. 4).
  • the distance a of the edge 5 to the imaginary connecting line 10 causes the spring strip 4 to be twisted around the line 10.
  • the spring strip 4 thus acts both as a bending and as Torsion spring. 5 that the individual spring strips 4 rest only on the inner cylindrical surface 19 of the housing part 18 with their outer, convexly curved edge 5. Furthermore, it can be seen that due to the convex curvature of the edge 5 when the two housing parts 13 and 18 are plugged together, the contact point between the edge 5 and the inner cylindrical surface 19 does not take place on an axially parallel line, but rather also in the circumferential direction of the cylindrical surface 19 wanders.
  • the configuration of the screen lamella described above ensures that the spring characteristic of the latter is greatly reduced, since the spring strips now act both as a spiral spring and as a torsion spring, these two springs being connected in series. Since the edge strips 2 and 3 only rest with their outer edges on the outer surface 14 of the housing part 13, the effective length available for bending the shielding lamella is also fully utilized. Since no edge strip is firmly clamped, the spring characteristic of the screen lamella is further weakened.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (8)

1. Lamelle de blindage destinée à être montée comme bague élastique de masse dans un connecteur à enfichage, comprenant deux bandes périphériques (2, 3) opposées reliées par plusieurs bandes élastiques (4) transversales, distantes les unes des autres, présentant une forme bombée, les bandes élastiques (4) étant courbées par rapport au plan de la bande, lamelle caractérisée en ce que chaque fois un bord (5) d'une bande élastique (4) se trouve dans le plan de la bande entre les points de raccordement (6, 7) avec les bandes périphériques opposées (2, 3) et un côté, avec une courbure convexe telle que le bord (5) à courbure convexe de chaque bande élastique (4) soit le plus en saillie par rapport à la périphérie de la lamelle de blindage.
2. Lamelle de blindage selon la revendication 1, caractérisée en ce que l'intervalle (9) entre deux bandes élastiques (4) adjacentes est en forme de lunule, de sorte que le bord (8) d'une bande élastique (4) présente une courbure concave par rapport au bord (5) à courbure convexe.
3. Lamelle de blindage selon la revendication 1 ou 2, caractérisée en ce que les intervalles (9) au milieu des bandes élastiques (4) sont plus larges qu'à proximité des bandes périphériques (2, 3).
4. Lamelle de blindage selon l'une des revendications 1 à 3, caractérisé en ce que le bord (8) à courbure concave au milieu de la bande élastique (4) se trouve à l'extérieur d'une ligne fictive (10) qui relie les deux points de raccordement (6, 7) de la bande élastique et des bandes périphériques.
5. Lamelle de blindage selon l'une des revendications 1 à 4, caractérisée en ce que les bandes périphériques (2, 3) rejoignent tangentiellement les bandes élastiques (4), de sorte que les plans (E1, E2) des bandes périphériques (2, 3) opposées se coupent.
6. Lamelle de blindage selon l'une des revendications 1 à 5, caractérisée en ce qu'au moins une bande périphérique (2) comporte des cavités (11) sur son côté opposé aux bandes élastiques (4), dans la zone des points de raccordement (6, 7) des bandes élastiques (4).
7. Lamelle de blindage selon l'une des revendications 1 à 6, caractérisée par des languettes de fixation (12), en saillie, distantes les unes des autres, prévues sur au moins une bande périphérique (2), sur son côté opposé aux bandes élastiques (4).
8. Lamelle de blindage selon l'une des revendications 1 à 7, caractérisée en ce que la lamelle (1) est matricée dans une bande de tôle.
EP89107248A 1988-05-19 1989-04-21 Lamelle de blindage Expired - Lifetime EP0342385B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806594U 1988-05-19
DE8806594U DE8806594U1 (de) 1988-05-19 1988-05-19 Schirmlamelle

Publications (3)

Publication Number Publication Date
EP0342385A2 EP0342385A2 (fr) 1989-11-23
EP0342385A3 EP0342385A3 (en) 1990-07-25
EP0342385B1 true EP0342385B1 (fr) 1991-09-25

Family

ID=6824232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107248A Expired - Lifetime EP0342385B1 (fr) 1988-05-19 1989-04-21 Lamelle de blindage

Country Status (2)

Country Link
EP (1) EP0342385B1 (fr)
DE (2) DE8806594U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013222745A1 (de) * 2013-11-08 2015-05-28 Voith Patent Gmbh Schienenfahrzeugkupplungs-Erdungseinrichtung
US9748710B2 (en) 2012-06-25 2017-08-29 Dish Network L.L.C. RF connector with push-on connection
US9762007B2 (en) 2016-02-10 2017-09-12 Dish Network L.L.C. Push on connector

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10118184C1 (de) * 2001-04-11 2003-01-30 Siemens Ag Steckerteil
DE102011112389B4 (de) * 2011-09-02 2015-01-22 Amphenol-Tuchel Electronics Gmbh Metallisches Kontaktlamellengitter
DE102013217256B3 (de) 2013-08-29 2015-03-05 Robert Bosch Gmbh Buchse sowie Hochstromsteckverbindung, die eine solche Buchse aufweist
CN106785572A (zh) * 2016-12-05 2017-05-31 常州诺德电子有限公司 大电流连接插套
CN112086601A (zh) * 2020-09-28 2020-12-15 北京和中普方新能源科技有限公司 一种电池箱及其组成的电池和用电设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1528481A (en) * 1974-09-06 1978-10-11 Amerace Corp Electrical contacts
DE2501003A1 (de) * 1975-01-11 1976-07-15 Multilam Corp Elektrisches verbindungselement
DE2527681C3 (de) * 1975-06-21 1978-05-24 Multi-Contact Ag, Allschwil (Schweiz) Elektrische Kontaktanordnung
CH589948A5 (fr) * 1975-10-27 1977-07-29 Sprecher & Schuh Ag
DE3518030A1 (de) * 1985-05-20 1986-11-20 Multi Contact Ag Elektrisch leitfaehige kontaktvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9748710B2 (en) 2012-06-25 2017-08-29 Dish Network L.L.C. RF connector with push-on connection
DE102013222745A1 (de) * 2013-11-08 2015-05-28 Voith Patent Gmbh Schienenfahrzeugkupplungs-Erdungseinrichtung
US9762007B2 (en) 2016-02-10 2017-09-12 Dish Network L.L.C. Push on connector

Also Published As

Publication number Publication date
EP0342385A2 (fr) 1989-11-23
DE58900317D1 (de) 1991-10-31
EP0342385A3 (en) 1990-07-25
DE8806594U1 (de) 1989-01-05

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