EP0369231A2 - Dispositif de contact, en particulier pour l'affichage à LCD - Google Patents

Dispositif de contact, en particulier pour l'affichage à LCD Download PDF

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Publication number
EP0369231A2
EP0369231A2 EP89120091A EP89120091A EP0369231A2 EP 0369231 A2 EP0369231 A2 EP 0369231A2 EP 89120091 A EP89120091 A EP 89120091A EP 89120091 A EP89120091 A EP 89120091A EP 0369231 A2 EP0369231 A2 EP 0369231A2
Authority
EP
European Patent Office
Prior art keywords
housing
contact
contacting device
spring
lcd
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.)
Withdrawn
Application number
EP89120091A
Other languages
German (de)
English (en)
Other versions
EP0369231A3 (fr
Inventor
Bernd Zinn
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.)
Grote and Hartmann GmbH and Co KG
Original Assignee
Grote and Hartmann 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 Grote and Hartmann GmbH and Co KG filed Critical Grote and Hartmann GmbH and Co KG
Publication of EP0369231A2 publication Critical patent/EP0369231A2/fr
Publication of EP0369231A3 publication Critical patent/EP0369231A3/fr
Withdrawn legal-status Critical Current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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs

Definitions

  • the invention relates to a contacting device, in particular for LCD displays and the like, according to the type mentioned in the preamble of claim 1.
  • LCD or liquid crystal displays are increasingly used in display instruments of all kinds, for example radio devices, on-board computers and the like, in order to display numbers, letters or pictures.
  • These LCDs generally have a relatively thin functional layer, which is applied to a transparent carrier layer or carrier plate made of, for example, glass, plastic or the like.
  • Thin metal interconnects are used to connect the individual liquid crystal elements to the corresponding control unit.
  • the conductor tracks are located on the transparent plate-shaped carrier layer and can be contacted by an appropriate device. Depending on the design of the LCD display, this results in a series of, for example, 20 interconnects arranged side by side, which must be contacted by a corresponding number of electrical connectors.
  • a contacting device with a housing made of plastic which has a longitudinal groove into which the carrier plate of the LCD display is inserted from the front.
  • a multiplicity of contact elements lying next to one another are arranged in the housing.
  • the contact elements are flat, F-shaped metal stamped parts, the two crossbars forming the contact spring arms being arranged above and below the longitudinal groove and projecting into or projecting into the same.
  • the known contacting device requires a relatively high spring force in order to ensure reliable contact with the individual metal conductor tracks. Due to the high spring forces, the conductor tracks can be damaged when the carrier plate is inserted. The LCD display will then become unusable.
  • the carrier plate of an LCD display can be inserted or pivoted in without the risk that the metal conductor tracks and / or the spring arms of the contact elements are damaged. Because the contact elements are largely or completely removed from the support plate of the LCD display during the insertion or pivoting of the support plate, there can be virtually no interaction between the contact elements and the support plate carrying the LCD display. However, as soon as the contact elements are in their contact position, a secure contact is made with the individual metal conductor tracks, which allows the LCD display to operate reliably.
  • a first embodiment of the contacting device 1 according to the invention shown in cross section in FIGS. 1 and 2 has a two-part housing with a first housing half 2 and a second housing half 3, which are preferably made from a dielectric material, in particular from plastic. Both housing halves 2 and 3 enclose a cavity 4 between them and are fixedly connected to one another in the state of use, for example glued, welded, riveted or the like, optionally also releasably connected to one another, for example screwed together, latched or the like.
  • the housing half 3 (shown on the left in FIGS. 1 and 2) has in the longitudinal direction of the contacting device 1 a plurality of side-by-side, semicircularly curved outwards in cross-section, longitudinally approximately U-shaped slot chambers 3a, which are formed by (in transverse view) crescent-shaped partition walls 3b are separated from the respectively adjacent slot chamber 3a.
  • the width of a slot chamber 3a thus corresponds to the mutual distance between two mutually adjacent partition walls 3b in the longitudinal direction of the contacting device 1.
  • each slit chamber 3a of the housing half 3 there is a preferably flat support surface 3c, the plane A (in FIGS. 1 and 2) of which is horizontal or perpendicular to a longitudinal center plane E and runs parallel to the longitudinal axis of the housing 2, 3.
  • the bearing surface 3c is part of a projecting ledge 3d which is formed in one piece on the housing half 3 and whose projecting edge is semicircular in cross section.
  • lower area of the housing half 3 following the strip 3d, it has a longitudinal end extending up to the (in FIGS. 1 and 2) lower end 3h telplane E parallel clamping surface 3g.
  • the clamping surface 3g can be flat or groove-shaped.
  • the housing half 3 is connected at one end for connection to the housing half 2 (in FIGS. 1 and 2, for example, below) on its housing wall 3 m, which runs approximately parallel to the longitudinal center plane E, with a row of perpendicular to the longitudinal center plane E (in FIGS. 1 and 2, for example, in FIG left) through openings 3e and at the other end (in FIGS. 1 and 2, for example above) on their housing wall 3k, which runs approximately parallel to the longitudinal center plane E, with a row of peg-shaped extensions 3f (for example, upwards in FIGS. 1 and 2).
  • the housing half 2 (shown on the right in FIGS. 1 and 2) has at its corner (located on the top right in FIGS. 1 and 2) on its housing wall 2n, which is approximately parallel to the longitudinal center plane E, a slot opening 2a extending in the longitudinal direction thereof.
  • the length of the slot opening 2a in the longitudinal direction of the housing half 2 corresponds at least to the sum of the width of all the slot chambers 3a formed in the housing half 3, arranged next to one another, plus the intermediate walls 3b arranged between them.
  • the slot opening 2a of the housing half 2 thus lies opposite the entirety of the slot chambers 3a formed in the housing half 3 in the longitudinal direction of the housing 2,3.
  • An abutment surface 2b with respect to the support surface 3c of the housing half 3 is part of a strip-like cantilever arm 2c formed on the housing half 2 and projecting towards the cavity 4.
  • the plane W of the abutment surface 2b parallel to the plane A of the support surface 3c is arranged at a distance S from the support surface 3c (above the latter in FIGS. 1, 2).
  • the housing half 2 is also provided with a cross-sectionally U-shaped groove-like recess 2d, in which the one formed on the housing half 3 before in the state of use jumping ledge 3d is introduced, with an approximately constant gap of width S remaining between the recess 2d and the ledge 3d.
  • a stop surface 2i running approximately parallel to the longitudinal center plane E is formed on a housing wall 2n arranged near the slot 2a formed thereon.
  • the housing half 2 has one end for connection to the housing half 3 (in FIGS. 1 and 2, for example, below) on its housing wall 2 m, which runs approximately parallel to the longitudinal center plane E, with a row of at right angles to the longitudinal center plane E (in FIGS. 1 and 2, for example, in FIG. 1 and 2) left) extending pin 2g and at the other end (in FIGS. 1 and 2, for example above) in their housing wall 2k, which runs approximately at right angles to the longitudinal center plane E, with a row of holes (2h, for example, running upwards in FIGS. 1 and 2).
  • the pins 2g of the housing half 2 are preferably positively mounted or latched in the openings 3e of the housing half 3 and the extensions 3f of the housing half 3 in the holes 2h of the housing half 2 and together form a positionally accurate fit of the two housing halves 2, 3 together.
  • a multiplicity of arc springs 5 of spring-elastic material, for example of spring steel, are arranged at a distance from one another in the longitudinal direction of the housing 2, 3 net, each of which is assigned to one of the plurality of slot chambers 3a formed in the housing half 3.
  • the bow spring 5 is bent as follows in a multiplicity of bends, preferably lying in a plane perpendicular to the longitudinal center plane E of the contacting device 1:
  • Each arc spring 5 has a U-shaped web or semicircular arch 5a, which is arranged in the associated slot chamber 3a and through which intermediate walls 3b delimiting the slot chamber 3a in the longitudinal direction of the housing 2, 3 are guided in the longitudinal direction of the housing 2, 3.
  • a linear operating web 5g On the U-shaped web 5a of the bow spring 5 is connected at the other end (in FIGS. 1 and 3 from left to right) a linear operating web 5g, to which in turn one to the other side (in FIGS. 1 and 2 upwards ) is connected by a 90 ° quarter circle 5h.
  • a hairpin-shaped contact arc 5i bent back to the other side is connected to the free leg of the quarter-circle arc 5h (running from bottom to top in FIGS. 1 and 2) .
  • the free leg of the contact sheet 5i forms a preferably straight stop 5j, the end piece 5k to be on the safe side (in FIGS. 1 and 2 from right to left) it is bent a little inward in the manner of a skid.
  • the U-shaped web or the semicircular arch 5a of the arc spring 5 is inserted into the associated slot chamber 3a in such a way that the arch spring 5 with its bearing web 5b on the bearing surface 3c of the housing half 3, with its bearing arch 5c on the projecting ledge 3d of the housing half 3 , and with its free leg 5e on the clamping surface 3g of the housing half 3 is form-fitting.
  • the housing half 2 is joined to the housing half 3 by means of the retaining elements formed on the same, namely with the aid of the pins 2g / openings 3e which come into operative connection with one another or the extensions 3f / holes 2h in the manner explained above.
  • the distance S (in FIGS. 1 and 2) in the lower region of the two housing halves 2, 3 between the support surface 3c and the abutment surface 2b, between the projecting ledge 3d and the recess 2d and between the two clamping surfaces 3g and 2e is so dimensioned that the parts of the bow spring 5 corresponding to these sections of the housing halves 2, 3, namely their bearing web 5b at about half the length, their bearing elbow 5c, their clamping elbow 5d and their bearing leg 5e are fixed without play between these areas of the two housing halves.
  • the arch spring 5 clamped in this way can thus perform elastic-resilient movements with half the length of its bearing web 5b, with its U-web 5a, its actuating web 5g, its quarter-circle arch 5h and its contact arch 5i.
  • a plate-like carrier layer or carrier plate 10 with an LCD display 11 arranged thereon can be inserted into the housing half 2 in the direction of the arrow T, the front end of the carrier plate 10 provided with metal conductor tracks 10a to be contacted into the Cavity 4 of the housing 2,3 protrudes.
  • the contact point 5m of the contact arc 5i of the arc spring 5 projects into the region of the cavity 4 formed between the two housing halves 2, 3, which is for the insertion (or for the pivoting in) through the slot opening 2a of the housing half 2 in the direction of arrow T of the carrier plate 10 with the metal conductor track 10a of the LCD display 11 to be contacted.
  • the carrier plate 10 In order to avoid the risk of damage to the metal conductor tracks 10a on the carrier plate 10 and / or the arc spring 5 itself, the latter is temporarily withdrawn or pushed away from the endangered area according to the invention, so that the carrier plate 10 without any prior contact with the Bow spring 5 can be completely inserted into the housing 2, 3, as shown in FIG. 2.
  • FIGS. 1 and 2 show the bow spring 5 in the extended state, its contact point 5m pressing against the metal conductor track 10a of the LCD display 11 to be contacted.
  • the (in FIGS. 1 and 2) top surface 10b of the carrier plate 10 is supported on the inside of the housing wall 2k of the housing half 2, which acts as an abutment (pointing downwards in FIGS. 1 and 2).
  • the camshaft 15 is - passing through the housing 2, 3 along its longitudinal axis - with an axis 15a running parallel to this longitudinal axis in the housing 2, 3 rotatable by 180 °.
  • a surface 16a formed on the eccentric or cam 16 strikes in extreme position "X 1" on a corresponding surface 3 p of the housing wall 3 k.
  • a surface 16b formed on the eccentric or cam 16 strikes in extreme position “X2” on a corresponding surface 3g of the housing wall 3k.
  • the camshaft 15 can with the help of a one or both sides acting on this bracket-like lever 17 through 180 ° about its axis 15a from the extreme position "X2" (Fig. 2 - support plate 10 is inserted with the bow spring 5 pushed into the contacting device 1) in the Extreme position "X1" (Fig. 1 - the metal conductor 10a of the carrier plate 10 is contacted with the arch spring 5 spring-loaded through its contact point 5m) are rotated.
  • Rotation of the camshaft 15 by 180 ° can also be effected with the aid of a separate tool, for example with the aid of a screwdriver or Allen key, if the camshaft is provided with a screwdriver slot or hexagon socket at least on one end.
  • the spring force of the spring-loaded arc spring 5 is designed so that its contact point 5m ensures reliable contact with the metal conductor 10a of the LCD display 11.
  • a second embodiment of the contacting device 20 according to the invention likewise has a two-part housing with a first housing half 22 and a second housing half 23, which are preferably made of a dielectric material, in particular plastic. Both housing halves 22 and 23 enclose a cavity 24 between them and are firmly connected to one another in the state of use, for example glued to one another, welded, riveted or the like, optionally also releasably connected to one another, for example screwed together, latched or the like.
  • the housing half 22 (shown on the right in FIGS. 3 and 4) has in the longitudinal direction of the contacting device 20 a plurality of side-by-side, semicircularly curved outward cross-section, longitudinally approximately U-shaped slot chambers 22a, which are formed by (in transverse view) crescent-shaped partition walls 22b are separated from the respectively adjacent slot chamber 22a.
  • the width of a slot chamber 22a thus corresponds to the mutual distance between two mutually adjacent partition walls 22b in the longitudinal direction of the contacting device 20.
  • each slot chamber 22a of the housing half 22 there is a preferably flat support surface 22c, whose plane A (in FIGS. 3 and 4) is horizontal or perpendicular to a longitudinal center plane E and runs parallel to the longitudinal axis of the housing 22, 23.
  • a housing wall 22m At the end of the bearing surface 22c is adjoined by a housing wall 22m, which is angled downwards at right angles and has a clamping surface 22f which is formed thereon and is flat or has a longitudinally grooved, cross-sectionally linear clamping surface.
  • the transition from the bearing surface 22c to Clamping surface 22f is rounded off in the manner of a quarter circle 22e.
  • each slit chamber 22a is near the corner (located at the top right in FIGS. 3 and 4) of the housing half 22, this has a longitudinally extending, leading from the outside into the cavity 24 Slot opening 22n.
  • the length of the slot opening 22n in the longitudinal direction of the housing half 22 corresponds at least to the sum of the width of all the slot chambers 22a formed in the housing half 22, arranged next to one another, plus the intermediate walls 22b arranged between them.
  • the slot opening 22n of the housing half 22 thus extends over the entirety of the slot chambers 22a formed in the housing half 22 and lies (in FIGS. 3 and 4) above the same.
  • the housing half 22 has a single end (in FIGS. 3 and 4, for example, below) on its housing wall 22m, which runs approximately parallel to the longitudinal center plane E, with a row of perpendicular to the longitudinal center plane E (in FIGS. 3 and 4, for example, in FIG on the left)) extending pins 22g and at the other end (in FIGS. 3 and 4 for example above) on their housing wall 22k which is approximately perpendicular to the longitudinal center plane E with a row of holes 22h (for example upwards in FIGS. 3 and 4).
  • the housing half 23 (shown on the left in FIGS. 3 and 4) has a housing wall 23a which runs approximately parallel to the longitudinal center plane E with a support surface 23b provided on the inside and two stop surfaces 23k and 23m provided on the inside.
  • the bearing surface 22c is the Housing half 22 facing side formed an abutment surface 23d.
  • the plane W of the abutment surface 23d parallel to the plane A of the bearing surface 22c is arranged at a distance S from (in FIGS. 3 and 4) the bearing surface 22c.
  • the housing half 23 is connected at one end for connection to the housing half 22 (in FIGS. 3 and 4, for example, below) on its housing wall 23f, which runs approximately parallel to the longitudinal center plane E, with a row of perpendicular to the longitudinal center plane E (in FIGS. 3 and 4, for example, in FIG right) provided openings 23h.
  • the housing wall 23f which runs approximately parallel to the longitudinal center plane E, it has a series of extensions 23i (which run upwards in FIGS. 3 and 4).
  • the pins 22g of the housing half 22 are preferably positively mounted or locked in the openings 23h of the housing half 23 and the extensions 23i of the housing half 23 in the holes 22h of the housing half 22 and together form a positionally accurate fit of the two housing halves 22, 23 to one another.
  • arc springs 25 which are arranged next to one another in the longitudinal direction of the housing 22, 23 and are made of resilient material, for example of spring steel, arranged, each of which is assigned to one of the plurality of slot chambers 22a formed in the housing half 22.
  • the bow spring 25 is bent as follows in a multiplicity of bends, preferably lying in a plane perpendicular to the longitudinal center plane E of the contacting device 20:
  • Each arch spring 25 has a U-shaped web or semicircular arch 25a, which is arranged in the associated slot chamber 22a and is guided through the intermediate walls 22b delimiting the slot chamber 22a in the longitudinal direction of the housing 22, 23 in the longitudinal direction of the housing 22, 23.
  • a straight bearing web 25b (in FIGS. 3 and 4 from right to left) is connected at one end, to which in turn one to the other side (downwards in FIGS. 3 and 4) is bent by 90 ° curved bearing arch 25c.
  • the free leg (in FIGS. 3 and 4) of the bearing bend 25c forms a straight contact lug or a contact pin 25f for connecting connecting lines (not shown here).
  • a stop bow 25h bent backwards and to the right by 180 ° in the manner of a hairpin is connected (in FIGS. 3 and 4).
  • the U-shaped web or the semicircular arch 25a of the arch spring 25 is inserted into the associated slot chamber 22a in such a way that the arch spring 25 with its bearing web 25b on the bearing surface 22c of the housing half 22, with its bearing arch 25c on the corner 22e of the housing half 3, and rests with its free bearing leg 25f in a form-fitting manner on the clamping surface 22f of the housing half 22.
  • the housing half 22 is joined to the housing half 23 by means of the retaining elements formed on the same, namely with the aid of the pins 22g / openings 23h which come into operative connection with one another or the extensions 23i / holes 22h in the manner explained above.
  • the distance S (in FIGS. 3 and 4) in the lower region of the two housing halves 22, 2 between the support surface 22c and the abutment surface 23d and between the two clamping surfaces 22f and 23n is dimensioned such that the sections of the housing halves 22, 23 corresponding parts of the bow spring 25, namely their bearing web 25b to about a third length, their bearing bend 25c and their bearing legs 25f are fixed without play between these areas of the two housing halves 22,23.
  • the arch spring 25 clamped in this way can thus with approximately two thirds the length of its bearing web 25b, with its U-web 25a, its quarter-circle arch 25d, its contact arch 25i, its actuating arch 25g and its stop arch 25h (in FIGS. 3 and 4) run upwards.
  • a plate-like carrier layer or carrier plate 10 with one This arranged LCD display 11 can be inserted into the housing half 22 in the direction of the arrow T, the front end of the carrier plate 10 provided with metal conductor tracks 10a to be contacted protruding into the cavity 24 of the housing 22, 23.
  • the contact point 25m of the contact arc 25i of the arc spring 25 projects into the region of the cavity 24 formed between the two housing halves 22, 23, which is for the insertion (or for the pivoting-in) through the slot opening 22n of the housing half 22 in the direction of arrow T of the carrier plate 10 with the metal conductor track 10a of the LCD display 11 to be contacted.
  • FIGS. 3 and 4 shows the bow spring 25 in the extended state, its contact point 25m pressing against the metal conductor track 10a of the LCD display 11 to be contacted.
  • the (in FIGS. 3 and 4) top surface 10b of the carrier plate 10 is supported on the inside of the housing wall 22k of the housing half 22 acting as an abutment (pointing downwards in FIGS. 3 and 4).
  • the camshaft 15 is - rotatable through the housing 22, 23 along its longitudinal axis - rotatable by 180 ° in the housing 22, 23 with an axis 15a running parallel to this longitudinal axis.
  • a surface 16a formed on the eccentric or cam 16 strikes in the extreme position "X 1" to a corresponding stop surface 23k of the housing wall 23a.
  • a surface 16b formed on the eccentric or cam 16 strikes in the extreme position "X2" on a corresponding stop surface 23m of the housing wall 23a. Due to these limitations, the extreme position of the eccentric or cam 16 is precisely defined, which is of great importance when mounting the contacting device 20.
  • the camshaft 15 can be turned on one or both sides by a bracket-like lever (not shown here) by 180 ° around its axis 15a from the extreme position "X2" (FIG. 4 - support plate 10 is in the contacting device 20 with the bow spring 25 pushed away) introduced) in the extreme position "X1" (Fig. 3 - the metal conductor 10a of the carrier plate 10 is contacted with the arch spring 25 spring-loaded through the contact point 25m).
  • Rotation of the camshaft 15 by 180 ° can also be effected with the aid of a separate tool, for example with the aid of a screwdriver or Allen key, if the camshaft is provided with a screwdriver slot or hexagon socket at least on one end.
  • the spring force of the spring-loaded arc spring 25 is designed so that its contact point 25m ensures reliable contact with the metal conductor 10a of the LCD display 11.
  • a third embodiment of a contacting device 30 according to the invention likewise has a two-part housing with a first housing half 32 and a second housing half 33, which are preferably made from a dielectric material, in particular from plastic. Both housing halves 32 and 33 enclose a cavity 34 between them and are firmly connected to one another in the state of use, for example glued to one another, welded, riveted or the like, optionally also releasably connected to one another, for example screwed together, latched or the like.
  • the housing half 32 (shown on the right in FIGS. 5 and 6) has, in the longitudinal direction of the contacting device 30, a large number of slot chambers 32a which are arranged next to one another on a relatively high housing wall 32c which runs parallel and rectilinearly in the vertical direction in the vertical direction.
  • the slit chambers 32a are separated from the respectively adjacent slit chamber 32a by partition walls 32b.
  • the width of a slot chamber 32a thus corresponds to the mutual distance between two adjacent intermediate walls 32b in the longitudinal direction of the contacting device 30.
  • the height H2 of the slot chambers 32a corresponds to approximately half the height H1 of the housing wall 32c.
  • the base surface 32d of each slit chamber 32a is preferably straight in both the vertical and horizontal directions (Figs. 5, 6 and 8).
  • each slot chamber 32a which is approximately box-shaped in longitudinal section (FIG. 8)
  • the housing half 32 has a vertically running flat or groove-shaped clamping surface 32e.
  • the housing half 32 is provided with a shoulder 32f which projects to the left (in FIGS. 5 and 6) and which is at right angles to the longitudinal center plane E, that is to say hori zonally running, upward-facing support surface forms 32g.
  • the housing half 32 has at its corner (located at the top right in FIGS. 5 and 6) on its housing wall 32c a slot opening 32k which extends in the longitudinal direction thereof.
  • the length of the slot opening 32k in the longitudinal direction of the housing half 32 corresponds at least to the sum of the width of all the slot chambers 32a formed in the housing half 32 and arranged next to one another plus the intermediate walls 32b arranged between them.
  • the slot opening 32k of the housing half 32 thus extends over the entirety of the slot chambers 32a formed in the housing half 32 and lies (in FIGS. 5 and 6) over the same.
  • the housing half 32 has a single end (in FIGS. 5 and 6, for example, below) on its housing wall 32h, which runs approximately parallel to the longitudinal center plane E, with a row of at right angles to the longitudinal center plane E (in FIGS. 5 and 6, for example, in FIG Left) extending pins 32n and at the other end (in FIGS. 5 and 6, for example above) in their housing wall 32p, which runs approximately at right angles to the longitudinal center plane E, are provided with a row of holes 32q (for example, running vertically upwards in FIGS. 5 and 6).
  • the housing half 33 (shown on the left in FIGS. 5 and 6) has, in the longitudinal direction of the contacting device 30, a plurality of support strips 33b arranged on the inside on a relatively high housing wall 33a which runs parallel to and in a straight line in the vertical direction parallel to the longitudinal center plane E and which are arranged next to one another in the on the housing half 32 designed slot chambers 32a engage like a comb and preferably in a form-fitting manner (FIG. 8).
  • the housing wall 33a is followed by an approximately perpendicular to the longitudinal center plane E towards the cavity 34 and horizontally extending housing wall 33c, to which a shoulder-like projecting, flat support surface 33d is connected , whose plane A also runs horizontally or at right angles to a longitudinal center plane E and parallel to the longitudinal axis of the housing 32, 33.
  • a vertically downward housing wall 33f is connected to the latter, on which a longitudinally flat or groove-shaped clamping surface 33g is formed.
  • the lower end of the housing wall 33f is adjoined by a shoulder-like housing wall 33h that runs approximately horizontally to the left, on the underside of which an approximately horizontally extending, longitudinally flat or groove-shaped holding surface 33i is formed.
  • the housing half 33 following the housing wall 33h, has a housing wall 33m, which is connected to its front edge 33k and runs vertically downwards and parallel to the longitudinal center plane E.
  • the latter is provided with a pressing surface 33p that also runs vertically downwards and parallel to the longitudinal center plane E, points to the right, has a longitudinally flat or groove-shaped pressing surface.
  • the housing half 33 has a single end (in FIGS. 5 and 6, for example below) on its housing wall 33m, which runs approximately parallel to the longitudinal center plane E, with a row of lines perpendicular to the longitudinal center plane E (in FIGS. 5 and 6) Openings 33q and other ends (in FIGS. 5 and 6, for example above) on their housing wall 33a, which runs approximately parallel to the longitudinal center plane E, with a series of (in FIGS. 5 and 6) vertically upwardly extending pin-shaped extensions 33s.
  • an abutment surface 33t and two stop surfaces 33v and 33w are formed in the upper region thereof, each pointing towards the interior 34.
  • the pins 32n of the housing half 32 are preferably positively mounted or latched in the openings 33q of the housing half 33 and the extensions 33s of the housing half 33 in the holes 32q of the housing half 32 and together form a positionally accurate fit of the two housing halves 32, 33 to one another.
  • a plurality of arc springs 35 made of spring-elastic material, for example spring steel, are arranged in the longitudinal direction of the housing 32, 33 at a distance from one another, each of which one of the plurality of springs formed in the housing half 32 Slot chambers 32a is assigned.
  • the bow spring 35 is bent as follows in a multiplicity of bends, preferably lying in a plane perpendicular to the longitudinal center plane E of the contacting device 30:
  • Each bow spring 35 has a multiplicity of loops 35a bent in a meandering manner and arranged vertically one above the other.
  • the lower leg arranged on the bottom meander loop 35c forms a support web 35b.
  • a support arch 35d bent in a quarter-circle arc is connected to the support web 35b.
  • Connected to the latter is a clamping web 35e, which is bent approximately vertically downward and extends in a straight line.
  • the clamping web 35e continues in one piece in a retaining arch 35f bent to the left in a quarter-circle arc.
  • a clamping arch 35h is connected to the retaining web 35g in a quarter-circular arc, which is bent approximately vertically downwards, the free leg of which is a pressing web 35i which runs approximately parallel to the longitudinal center plane E and vertically downwards with a contact tab or a contact pin 35k for connecting (not shown here) ) Forms connecting lines.
  • the upper leg arranged on the meander loop 35m arranged at the top forms a transverse web 35n running at right angles to the longitudinal center plane E and approximately horizontally to the left.
  • a support pin 35p which is bent back 180 ° to the right in the manner of a hairpin is connected to the crosspiece 35n, to which an actuating sheet 35q bent approximately vertically upward in a quarter-circle arc is integrally connected.
  • Connected to the upper end of the actuating arch 35q is a contact arch 35r bent back like a hairpin by 180 ° to the right, the free leg of which forms a stop web 35s.
  • the free end 35t of the stop web 35s is bent in the manner of a skid to the left.
  • the meandering loops 35a of the bow spring 35 are inserted into the associated slot chamber 32a in such a way that the bow spring 35 bears with its clamping web 35e on the clamping surface 32e, with its retaining web 35g on the bearing surface 32g and with its pressing web 35i on the pressing surface 32i of the housing half 32 .
  • the clamping or holding parts of the housing half 33 described above, namely the bearing surface 33d on the bearing web 35b, the clamping surface 33g on the clamping web 35e, the holding surface 33i on the holding web 35g and the pressing surface 33p on the pressing web 35i of the bow spring 35 come in Active connection.
  • the distance S (in FIGS. 5 and 6) in the lower region of the two housing halves 32, 33 between the clamping or holding parts of the two housing halves 32, 33 is dimensioned such that the parts corresponding to these sections of the housing halves 32, 33 the bow spring 35, namely the clamping web 35e, the holding web 35g and the pressing web 35i between the corresponding areas of the two housing halves 32,33 are fixed without play.
  • the arch spring 35 clamped in this way can thus perform elastic-resilient movements with its meandering loops 35a, with its supporting arch 35p, with its actuating arch 35q and with its contact arch 35r.
  • the arches of the meandering loops 35a, 35c and 35m slide along the base surface 32d of the housing half 32 or along the end surface of the support strip 33b of the housing half 33 and are guided laterally between surfaces thereof.
  • a plate-like carrier layer or carrier plate 10 with an LCD display 11 arranged thereon can be inserted into the housing half 2 in the direction of arrow T, the front end of the carrier plate 10 provided with metal conductor tracks 10a to be contacted Cavity 34 of the housing 32,33 protrudes.
  • the contact point 35w of the contact arc 35r of the arc spring 3 projects into the area of the cavity 34 formed between the two housing halves 32, 33, which is for the insertion (or for the insertion) in the arrow direction T through the slot opening 32k of the housing half 32 pivot) of the carrier plate 10 with the metal conductor 10a to be contacted of the LCD display 11 is determined.
  • the carrier plate 10 is temporarily withdrawn or pushed away from the endangered area according to the invention, so that the carrier plate 10 without any prior contact with the Bow spring 35 can be completely inserted into the housing 32, 33, as shown in FIG. 6.
  • FIGS. 5 and 6 show the bow spring 35 in the extended state, its contact point 35w pressing against the metal conductor track 10a of the LCD display 11 to be contacted.
  • the (in FIGS. 5 and 6) top surface 10b of the carrier plate 10 is supported on the inside of the housing wall 32p of the housing half 32 which acts as an abutment (in FIGS. 5 and 6 pointing downwards).
  • the camshaft 15 is - rotatable through the housing 32, 33 along its longitudinal axis - with an axis 15a running parallel to this longitudinal axis in the housing 32, 33 rotatable by 180 °.
  • a surface 16a formed on the eccentric or cam 16 strikes in the extreme position "X 1" on the corresponding stop surface 33 v of the housing wall 33 a.
  • a formed on the eccentric or cam 16 surface 16b strikes in the extreme position "X2" on the corresponding stop surface 33w of the housing wall 33a.
  • the camshaft 15 can with the help of one or two arms 37a on one or both sides engaging on this, bracket-like lever 37 through 180 ° about its axis 15a from the extreme position "X2" (Fig. 6 - support plate 10 is with bow spring 35 pushed in the contacting device 30 inserted) in the extreme position "X1" (Fig. 5 - the metal conductor 10a of the carrier plate 10 is contacted with the arch spring 35 springed out through the contact point 35w).
  • Rotation of the camshaft 15 by 180 ° can also be effected with the aid of a separate tool, for example with the aid of a screwdriver or Allen key, if the camshaft is provided with a screwdriver slot or hexagon socket at least on one end.
  • the spring force of the spring-loaded bow spring 35 is designed so that its contact point 35w ensures reliable contact with the metal conductor 10a of the LCD display 11.
  • FIGS. 7 and 8 show partial longitudinal sections through the contacting device 30 according to FIGS. 5 and 6.
  • arc springs 35 have retaining webs 35g of different lengths, whereby in the longitudinal direction of the housing 32,33 of the contacting device 30 alternating arc springs 35 are provided with longer or shorter retaining webs 35g, so that the pressing webs 35i (in Top view according to Fig. 7) are alternately offset from each other. As a result, the contacting device 30 can be made shorter in its longitudinal direction.
  • the arc springs 35 are each identical and lie horizontally next to or behind one another in the longitudinal direction. It can also be seen that the arc springs 35 are guided laterally through the intermediate walls 32b and that the arcs of their meandering loops 35a are supported on the parts 32d and 33b of the housing halves 32 and 33. In this way, the arc springs 35 cannot buckle to either side and develop their full spring force in the vertical direction for contacting the metal conductor tracks 10a.
  • FIG. 9 shows an exploded view of the individual parts forming the contacting device 30 in a perspective view.
  • a fourth embodiment of the contacting device 40 according to the invention is shown in cross section in FIG. 10.
  • the contacting device 40 has two housing halves 42, 43, which are made of the same material and are connected to one another in the same or similar manner as the housing halves of the exemplary embodiments described above. They enclose a cavity 44.
  • the housing half 43 (shown on the left in FIG. 10) has a housing wall 43a which is bulged outward in a cross-section approximately in a quarter circle, at one end of which a housing wall 43b which runs in a straight line in the vertical direction and is approximately parallel to the longitudinal center plane E is connected.
  • the other end of the housing wall 43a is adjoined by a housing wall 43c that runs approximately horizontally and at right angles to the longitudinal center plane E, on which - towards the cavity 44 - one Support surface 43d is formed.
  • slot chambers 43e are formed with intermediate walls 43f which laterally delimit them in the longitudinal direction of the housing 43, 44. In the transverse view, the intermediate walls 43f have approximately the shape of a quarter circle surface.
  • the housing wall 43c is adjoined by a housing wall 43g which is angled downwards at right angles, rectilinearly vertically downwards and runs approximately parallel to the longitudinal center plane E and is provided with an opening 43h.
  • a longitudinally planar or groove-shaped clamping surface 43i is formed on the housing wall 43g on the right.
  • the housing half 42 (shown on the right in FIG. 10) has a housing wall 42a which runs approximately parallel to the central longitudinal plane E and which, after being bent to the left and downwards, is followed by a housing wall 42b which is angled approximately vertically downwards and which is on the left with one longitudinally flat or groove-shaped clamping surface 42c is provided.
  • a bearing wall 42d which extends approximately at right angles to the right and to the longitudinal center plane E and on which a support surface 42e is formed on the top side.
  • a cross-sectionally approximately L-shaped head wall 42f is connected to the bearing wall 42d, the short L part 42g of which is connected to the bearing wall 42d, and the long L part 42h is dimensioned approximately so long that it - after the two have been joined together Housing halves 42, 43 - ends at the upper end of the housing wall 43b of the housing half 43 and can be connected to it.
  • a contact slot 42i leading to the cavity 44 is formed, the length of which in the longitudinal direction of the housing 42, 43 is dimensioned as large as the total amount of the width of all arranged in the housing 42, 43 th slit chambers 43e plus the total sum of the width of the partition walls 43f arranged between them.
  • a stop surface 42k is formed on the short L part 42g of the head wall 42f on the outside above the contact slot.
  • An arc spring 45 described as follows is arranged in the housing 42, 43:
  • the bow spring 45 has a semicircular arch 45a mounted in the slot chamber 43e of the housing half 43, to the lower U-leg of which a bearing web 45b resting on the bearing surface 43d and running approximately horizontally from left to right is connected. Connected to the bearing web 45b is a clamping web 45c which is bent downwards at right angles and runs vertically downwards and which, in the state of use, is clamped and held between the clamping surfaces 42c and 43i of the two housing halves 42, 43.
  • An approximately S-shaped transition web 45d is connected to the upper U-leg of the semicircular arch 45a, to which in turn an actuation arch 45e bent in the form of a quarter-circular arch is connected with an approximately vertically downward curved part.
  • a contact arm 45f which extends approximately horizontally to the right, is connected to the actuating arch 45e, at the end of which an approximately V-shaped contact element 45g is formed, the downward-pointing V tip of which forms a contact point 45h.
  • a cam shaft 15 which is provided with an eccentric or cam 16 and is rotatable by 180 ° is rotatably mounted.
  • On the cam 16 formed stop surfaces 16a, 16b are in the two end positions (which correspond to the extreme positions "X1" / "X2" described above) on the stop limits 43k, 43m of the housing half 43. Due to the defined end positions, when inserting a carrier plate 10 carrying an LCD display 11 with metal conductor tracks 10a, the to be contacted, the correct position of the cam 16 to be checked.
  • the bow spring 45 In the position of the cam 16 shown, the bow spring 45 is in the extended state.
  • the contact point 45h of the arc spring 45 rests under spring pressure on the metal conductor track 10a of a carrier plate 10 inserted through the contact slot 42i and contacts the same.
  • the actuating arc 45e of the arc spring 45 must be raised upwards. As a result, the contact point 45h is temporarily removed from the area located behind the contact slot 42i. The actuating arc 45e is raised with the aid of the cam 16, the camshaft 15 of which must be rotated about its axis 15a by approximately 180 °.
  • the bearing surface 42e on the housing half 42 serves as an abutment for the spring-loaded carrier plate 10, which lies with its rear side 10b on the bearing surface 42e.
  • FIG. 11 shows a fifth embodiment of the contacting device 50 according to the invention in cross section.
  • An essentially S-shaped arch spring 5 has a U-shaped spring arch 55a, to whose lower leg a bearing web 55b is connected. In the state of use, this lies in a form-fitting manner on a bearing surface 52a of the right housing half 52. On the free leg of the bearing web 55b is connected to the shoulder 52b of the housing half 52, an approximately right-angled downward web 55c. When in use, the clamping web 55c is arranged between the two housing halves 52, 53 and is fixed by clamping surfaces 52c, 53a formed thereon.
  • the actuating arc 55e of the arc spring 55 can be acted upon by a camshaft 15 which is rotatably mounted in the housing 52, 53 and rotates by 180 ° and carries an eccentric or cam 16 such that the contact arc 55f is pressed out of the contact area of the contact slot 52 of the housing half 52 .
  • FIG. 12 shows in cross section a sixth embodiment of a contacting device 60 according to the invention having two housing halves 62, 63, which essentially corresponds to that of the embodiment according to FIG. 11.
  • the arc spring 65 is not controlled by an eccentric or cam, but by a wedge 61 which can be inserted laterally from the left through an opening 63a of the housing half 63 in the direction of arrow P.
  • the wedge 61 is part of a separate comb-like tool 61a.
  • FIG. 13 shows a seventh embodiment in cross section of a contacting device 70 according to the invention having two housing halves 72, 73, which essentially corresponds to the fifth embodiment of the invention shown in FIG. 11. However, it shows the following differences compared to the latter:
  • FIG. 13 a further spring arch 75b bent backwards and downwards to the right is connected to the lower leg of the spring arch 75a.
  • an approximately horizontally extending bearing web 75c which, in the state of use, rests on a bearing surface 73a of the housing half 73.
  • On the free leg of the Bearing web 75c is connected to the shoulder 73b of the housing half 73 by an approximately right-angled downward clamping web 75d, which - as already described several times above - is clamped or fixed between the clamping surfaces 72a, 73c formed on the two housing halves 72, 73.
  • FIG. 14 shows an eighth embodiment of a contacting device 80 according to the invention having two housing halves 82, 83, in cross section, which essentially corresponds to the embodiment according to FIG. 13.
  • the arc spring 85 is not controlled by an eccentric or cam, but by a wedge 81 which can be inserted laterally from the left through an opening 83a in the housing half 83 in the direction of arrow P.
  • the wedge 81 is part of a separate comb-like tool 81a.
  • FIG. 15 a ninth embodiment of a contacting device 90 according to the invention having two housing halves 92, 93 is shown in cross section in FIG. 15.
  • the contact arc 95a of an arc spring 95 is temporarily removed from the contact area at the contact slot 92a in such a way that a vertically movable plunger 91 which can be inserted from above in the vertical direction from above in the direction of arrow Z through an opening 92b in the housing half 92 onto one of the arc spring 95 trained actuating web 95b presses.
  • the bow spring 95 springs downward in the direction of the arrow Z.
  • a carrier plate 10 with an LCD display 11 can be inserted into the housing 92, 93 through a contact slot 92a without the latter touching the contact point 95k of the contact sheet 95a.
  • the plunger 91 is part of a separate comb-like tool 91a.
  • the force is applied to the contact arc of the arc spring in the direction of the longitudinal axis of the LCD contact housing.
  • the bow spring 105 shown in FIG. 16 essentially has the shape shown in FIGS. 13 and 14, namely a central spring bow 105a bulged to the right and an approximately horizontally extending central web 105c connected to the lower leg 105u thereof another spring bend 105b, which is bent backwards and backwards by 180 °, is connected. While the upper leg 105d of this spring arch 105b can still perform free spring movements when in use, the lower leg 105e of the spring arch 105b is firmly clamped between two clamping surfaces 120f, 125f of an LCD contact housing 120, 125 described below.
  • the bow part 105 ends in its lower part in a clamping web 105f which is also firmly clamped between clamping surfaces 120g, 125g of the LCD contact housing 120, 125.
  • An approximately horizontally extending actuating web 105g is connected to the upper leg 105o of the central spring arch 105, and a free contact arch 105h adjoins the free end thereof.
  • the free end of the contact sheet 105h is provided with a contact point 105i pointing downward in the state of use, by means of which the bow spring 105 should finally bear in contact with a metal conductor track 111 of an LCD carrier plate 110.
  • the LCD contact housing 120 according to FIG. 16 is explained in more detail below with reference to FIGS. 17 to 21, in particular with reference to FIG. 19:
  • the LCD contact housing 120 has on its front wall 120z a multiplicity of slot chambers 120a which are arranged next to one another in the longitudinal direction, are curved inward in cross section approximately semicircularly, and are approximately U-shaped in longitudinal section and which are roughly crescent-shaped (in transverse view) Partitions 120b are separated from the adjacent slot chamber 120a.
  • the base surface 120C of each slot chamber 120a forms a support surface for the spring arch 105a in the use state of the arch spring 105.
  • a shoulder-like projection 120d is formed with a front edge 120e which is approximately semicircularly rounded.
  • the lower, approximately horizontal and rectilinear flank of the projection 120d forms a first clamping surface 120f, which is adjoined by a second clamping surface 120g, which is angled downward by 90 ° and extends linearly downward within a spring groove 120r.
  • a groove 120h which is approximately rounded in a quarter circle, is formed.
  • a shoulder-like projection 120i is formed at the upper end of each slot chamber 120a, the upper side (in the position of the LCD contact housing 120 shown in FIG. 19) of which forms a flat bearing surface 120j as a support surface for the LCD carrier plate 110 to be connected.
  • the LCD contact housing has an opening 120k above the support surface 120i.
  • the front wall 120z of the LCD contact housing 120 has, in the region of each intermediate wall 120b, a recess 120m formed therein, the cross section of which has approximately the shape of a standing half rectangle.
  • the cutouts 120m of all the intermediate walls 120b are arranged one behind the other in alignment in an escape direction running parallel to the longitudinal axis A of the LCD contact housing.
  • the front wall 120z of the LCD contact housing 120 is also provided with a multiplicity of heat-compressible holding tabs, which are integrally formed along the longitudinal axis A of the contact housing at uniform intervals on the front wall 120z, namely with a row of upper retaining tabs 120o and with a row of lower retaining tabs 120u.
  • this is provided with a plurality of vertical slits along its long side at regular intervals on the same, namely with egg slots
  • the LCD contact cover 125 according to FIG. 16 is explained in more detail below with reference to FIGS. 22 to 25, in particular with reference to FIG. 24:
  • the LCD contact cover 125 has on its front wall 125z a multiplicity of slot chambers 125a which are arranged next to one another in the longitudinal direction and are approximately rectangular in cross section and have a U-shaped longitudinal section, which are formed by (in transverse view) approximately rectangular intermediate walls 125b are separated from the adjacent slot chamber 125a.
  • the base surface 125c of each slot chamber 125a in each case forms a support surface for the contact arch 105h in the use state of the arch spring 105.
  • a shoulder-like projection 125d pointing to the right is formed with a front edge 125e which is rounded in a cross section approximately in a quarter circle.
  • the approximately horizontal and rectilinear upper flank of the projection 125d forms a first clamping surface 125f, which is followed by a second clamping surface 125g which is angled downward by 90 ° and extends linearly downwards.
  • the LCD contact cover 125 has openings 125m formed in the intermediate walls 125b, the cross section of which has approximately the shape of a standing rectangle.
  • the openings 125m of all the intermediate walls 125b are arranged one behind the other in alignment in an escape direction running parallel to the longitudinal axis A of the LCD contact housing.
  • the front wall 125z of the LCD contact cover 125 is additionally provided with holes 125v, 125w of approximately rectangular cross section, the dimensions of which are dimensioned slightly larger than the outer dimensions of the retaining tabs 120o, 120u formed on the LCD contact housing 120.
  • the LCD contact cover 125 has on its front wall 125z a multiplicity of integrally formed holding tabs 125o, which are arranged in a row one behind the other or next to one another and along its long side at regular intervals on it, projecting to the right.
  • this is provided with a plurality of openings along its longitudinal side at uniform intervals on this at the same height, namely with a series of upper openings 125r and with a series of lower openings 125s.
  • the lower openings 125s are offset with respect to the holding tabs 125o, that is to say arranged on a gap.
  • a holding tab 125o is provided on each side of two lower openings 125s, as shown in FIG. 25.
  • the bow springs 105 are inserted into the slit chambers 120a or in the spring grooves 120r of the LCD contact housing 120 such that their central spring bow 105a on the base surface 120c of the LCD contact housing 120 and the lower leg 105e of the spring bow 105b of the bow spring 105 on the first Clamping surface 120f of the LCD contact housing 120 comes to rest. Then the LCD contact cover 125 is attached to the LCD contact housing 120 in such a way that its clamping surfaces 125f, 125g rest against the clamping web 105e, 105f of the arc spring 105.
  • the retaining tabs 125o formed on the LCD contact cover 125 are formed in the ones formed on the LCD contact housing 120 Clamping grooves 120s introduced, whereby the two housing halves 120, 125 are positioned exactly in relation to each other.
  • the holding tabs 120o, 120u of the LCD contact housing 120 penetrate the holes 125v, 125w formed on the LCD contact cover 125.
  • the two housing halves 120, 125 are permanently connected to one another by subsequent hot upsetting of the retaining tabs 120o, 120u, the clamping webs 105e, 105f of the bow springs 105 and thus the bow spring 105 itself being arranged between them or between their clamping surfaces 120f, 125f / 120g, 125g are also precisely positioned in the LCD contact housing 120, 125.
  • the bow springs 105 can each spring freely above their clamping webs 105e, 105f.
  • the surfaces of the metal conductor tracks 111 of the LCD carrier plate 110 are protected (since these are affected by the Contact points 105i of the bow springs 105 are not sliding or sliding, but are practically touched only point by point).
  • a very low force is required to unlock the contacts (since the arc springs 105 are not unlocked one after the other at the same time, but rather individually using the unlocking pin 130 which can be inserted into the LCD contact housing parallel to the longitudinal axis A of the contact housing).

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP19890120091 1988-11-15 1989-10-30 Dispositif de contact, en particulier pour l'affichage à LCD Withdrawn EP0369231A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8814300U 1988-11-15
DE8814300 1988-11-15
DE8901711U DE8901711U1 (fr) 1988-11-15 1989-02-14
DE8901711U 1989-02-14

Publications (2)

Publication Number Publication Date
EP0369231A2 true EP0369231A2 (fr) 1990-05-23
EP0369231A3 EP0369231A3 (fr) 1991-09-04

Family

ID=25953790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890120091 Withdrawn EP0369231A3 (fr) 1988-11-15 1989-10-30 Dispositif de contact, en particulier pour l'affichage à LCD

Country Status (3)

Country Link
EP (1) EP0369231A3 (fr)
JP (1) JPH02187728A (fr)
DE (1) DE8901711U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009100998A2 (fr) * 2008-02-11 2009-08-20 Weidmüller Interface GmbH & Co. KG Contact par ressort de pression placé dans un boîtier
CN109061926A (zh) * 2018-09-25 2018-12-21 广州市得胜光电科技有限公司 一种改善lcd黑模负显产品漏光的材料

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2815138B2 (ja) * 1995-07-12 1998-10-27 エスエムケイ株式会社 コネクタ
DE19843708A1 (de) * 1998-09-23 2000-04-27 Siemens Ag Einrichtung zur lösbaren Montage eines elektronischen Bauteils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110947A1 (de) * 1970-04-13 1971-10-28 Bunker Ramo Einschubaufnahme fuer einen ebenen Schaltungstraeger
DE2413989A1 (de) * 1973-03-23 1974-09-26 Electrovac Kontaktleiste
DE2441699A1 (de) * 1974-08-30 1976-03-11 Daut & Rietz Kg Vorrichtung zum halten von aufdrucken od. dgl. aufweisenden anzeigetraegern, insbesondere fluessigkristallanzeigen
DE2502521A1 (de) * 1975-01-22 1976-08-05 Bunker Ramo Elektrische federleiste
US4629271A (en) * 1983-08-01 1986-12-16 E. I. Du Pont De Nemours And Company Electrical connector for flexible circuit boards

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110947A1 (de) * 1970-04-13 1971-10-28 Bunker Ramo Einschubaufnahme fuer einen ebenen Schaltungstraeger
DE2413989A1 (de) * 1973-03-23 1974-09-26 Electrovac Kontaktleiste
DE2441699A1 (de) * 1974-08-30 1976-03-11 Daut & Rietz Kg Vorrichtung zum halten von aufdrucken od. dgl. aufweisenden anzeigetraegern, insbesondere fluessigkristallanzeigen
DE2502521A1 (de) * 1975-01-22 1976-08-05 Bunker Ramo Elektrische federleiste
US4629271A (en) * 1983-08-01 1986-12-16 E. I. Du Pont De Nemours And Company Electrical connector for flexible circuit boards

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009100998A2 (fr) * 2008-02-11 2009-08-20 Weidmüller Interface GmbH & Co. KG Contact par ressort de pression placé dans un boîtier
WO2009100998A3 (fr) * 2008-02-11 2009-11-26 Weidmüller Interface GmbH & Co. KG Contact par ressort de pression placé dans un boîtier
CN109061926A (zh) * 2018-09-25 2018-12-21 广州市得胜光电科技有限公司 一种改善lcd黑模负显产品漏光的材料

Also Published As

Publication number Publication date
EP0369231A3 (fr) 1991-09-04
JPH02187728A (ja) 1990-07-23
DE8901711U1 (fr) 1990-03-15

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