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EP2299546B1 - Dispositif concernant une mise en contact multiple à haute température amovible et électrique - Google Patents

Dispositif concernant une mise en contact multiple à haute température amovible et électrique Download PDF

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Publication number
EP2299546B1
EP2299546B1 EP20090170563 EP09170563A EP2299546B1 EP 2299546 B1 EP2299546 B1 EP 2299546B1 EP 20090170563 EP20090170563 EP 20090170563 EP 09170563 A EP09170563 A EP 09170563A EP 2299546 B1 EP2299546 B1 EP 2299546B1
Authority
EP
European Patent Office
Prior art keywords
contact
force
ceramic
pressure
plates
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.)
Not-in-force
Application number
EP20090170563
Other languages
German (de)
English (en)
Other versions
EP2299546A1 (fr
Inventor
Emil Aulbach
Oliver Guillon
Gerrit Günther
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.)
Technische Universitaet Darmstadt
Original Assignee
Technische Universitaet Darmstadt
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 Technische Universitaet Darmstadt filed Critical Technische Universitaet Darmstadt
Priority to EP20090170563 priority Critical patent/EP2299546B1/fr
Publication of EP2299546A1 publication Critical patent/EP2299546A1/fr
Application granted granted Critical
Publication of EP2299546B1 publication Critical patent/EP2299546B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/505—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using an excentric element

Definitions

  • the present invention relates to a contacting device, in particular for temperature-resistant and later easily re-releasable, electrical contacting in areas where there are high temperatures due to application-related conditions.
  • the design of the device allows a detachable contacting many behind and juxtaposed contact points with independent of the ambient conditions, constant contact force.
  • Electrical contacts have the task of forwarding electricity from one component to the next while having the smallest possible intrinsic resistance. For components that should not be permanently connected to a system, it is important to make these contacts closable and detachable. So parts can be installed and removed at will, as well as changed. In such a case, the electrically conductive connection is generated by a contact pressure. The source of this force is usually the elastic properties of a deformed metal component (spring force).
  • a pressure contact has the further advantage of being a direct connection of two materials. Lot, flux or other volatile substances are not used. The possibility of wire bonding is also a direct method of connection, but it requires expensive equipment, is time consuming and the connection is not nondestructive solvable.
  • a multiple pressure contact device was needed for a differential measuring chip calorimeter, which maintains its function constant, regardless of the temperature in the area of the contact.
  • To contact were on standard chip carrier plates applied, metal interconnect contact surfaces on which the contact pressure must be applied.
  • In the measuring chamber interchangeable sensor chips are connected to lines at the contact point, which forward the measuring signals of the chips to the measuring periphery. Since new measuring chips are used after each measurement, the contacts must be detachable.
  • the apparatus should be operable under vacuum conditions, so that no vaporizing substances may be used.
  • a spring contact pin for releasable electrical contacting of a component known.
  • This has a sleeve, in which a force-generating element in the form of a spring and a movably mounted power transmission device are arranged.
  • the force-generating element and the spring are made of electrically conductive material and the power transmission device forms an end contact point for contacting the component.
  • the spring is supported on the sleeve and fogs the movably mounted power transmission device in the direction of a contact point of the component with a contact pressure. Consequently, the force-generating device can be arranged in a first, supposedly colder, region of an overall arrangement, and the component to be contacted can be positioned in a second, hot region of the overall arrangement.
  • Object of the present invention is to produce at least one, but also good many electrical, easily detachable contacts that remain permanently functional at ambient temperature up to high temperatures.
  • standardized carrier plates with a usual contact spacing of 1 inch (2.54 mm) should be contacted.
  • the contact should work up to at least 1000 ° C.
  • the chips are located inside a high-temperature furnace with two side gas / vacuum inlets / outlets and the electrical lines.
  • the conductor track contact surfaces of the base plate must be contacted with perpendicular to the plate pressure, which represents a further problem to be solved in a symmetrical mounting position and the base plate horizontal inlets.
  • An electrically conductive platinum wire (13) runs unloaded in the ceramic tube (6) and ensures a constant power line. At the contact point (15) it is pressed with a defined pressure force. Any high-melting, highly conductive metals can be used here. In the embodiment There are a total of 24 contacts, each with its own ceramic tube (6) and platinum wire (13). Alternatively, the force can also be transmitted simultaneously by a component for several contacts.
  • the functional principle is not limited to sensor chips, but also works for any other, electrically contacted components.
  • the solution according to the invention for converting the force of the push rods (6) arriving horizontally to the printed conductor contact surfaces (16) into the necessary vertical contact pressure is that the contact plates (1,2) are rotatably mounted on a fixed hinge pin (8) and thus act horizontally Reduce the pressure of the push rods (6) to a vertical contact pressure on the contact points (15).
  • the contact pressure can be adjusted via the lever ratio of the printing plates. The force deflection allows the symmetrical and horizontal installation of two sensor chips - the prerequisite for differential measurements.
  • the contacting device according to the invention can be made very narrow and thus allows contacting with standard 1 inch (2.54 mm) contact surface distance (center to center). This distance can be further reduced if the push rods are made narrower and the platinum wires are thinner or replaced by thin-layer tracks.
  • two or more rows of laterally offset contact surfaces may be on the carrier plate. So that all contacts are still achieved according to the principle of the invention, different contact plates are used. They differ in the position of the connection point between push rod (6) and pressure plate (1,2). The connection point is different high, so on the one hand the Rods spatially can run over each other and on the other hand, the leverage ratios are the same for each contact row.
  • connection points are moved forward or backward so that wires experience no friction during tilting movements of adjacent pressure plates.
  • these are 2x 12 contacts, which are arranged in two rows offset by half the contact surface spacing.
  • Another feature is the two holes in the printing plates. The smaller hole is fitting for the hinge pin (8). All printing plates, which serve to contact the overhead support plate, pivot about the lower hinge pin. The fact that the pivot point is down, a larger lever is generated. The larger bore is positioned and dimensioned so that the upper hinge pin limits the pivot radius to a few degrees. For the underlying support plate and its printing plates, the same principle applies, only rotated by 180 °. Top and bottom contacting printing plates are lined up on the hinge pins and alternate. The width of the printing plates is adjusted so that a printing plate on one side also acts as a spacer between two printing plates on the other side.
  • the power line decoupling can be freely combined with the force deflection and the alternately offset contacting in order to be adapted to a wide variety of contact designs for at least one component to be contacted.
  • the use of ceramic materials not only has the advantage that they are resistant to high temperatures, but most ceramics (here aluminum oxide) are also excellent electrical insulators. As a result, the ceramic push rods and pressure plates also prevent electrical short circuits and shield the test leads very well against each other. From the electrical side, the maximum operating temperature of the device according to the invention is limited by changing line properties of the insulating parts (here with alumina about 1200 ° C).
  • FIG. 2 shows the simplified representations of an embodiment for a detachable high-temperature multiple contact, as used in a differential measuring chip calorimeter.
  • the small pressure plates (1) reach the conductor contact surfaces (16) of the front contact row. Their push rods (6) put down, behind.
  • the large pressure plates (2) are for the rear trace contact surface row.
  • Their push rods (6) run further up and end further forward. Thus, neither push rods nor platinum wires (13) obstruct the tilting movements around the respective hinge pins (8).
  • the platinum wires (13) extend protected and isolated in capillaries of the push rods (6), exit at their end and are attached to the wire feedthrough holes (9) of the pressure plates (1,2) so that they at the contact point between the pressure plate (1, 2) and contact surface (16) are located.
  • the force is generated by helical compression springs (11), passed through the push rods (6) and deflected at the pressure plates (1,2) in a vertical to the chip carrier plate (7) acting pressure. This presses the platinum wire (13) on the contact point (15) of the chip carrier plate (7) on which the high-temperature sensor chip (10) is mounted.
  • the printing plates are provided with a small notch of half the wire diameter, so that the platinum wire can not accidentally slip out of position during chip installation.
  • Pressure plates for the upper and lower sensor chip alternate. Centering discs (4) hold the printing plate package in the center of the receiving tube (3). As the pressure plates (1,2) are pushed up, the slider (5) helps to insert the two chip carrier plates (7) and then prevents the positioned plates from being pushed down.
  • the contact and rod receiving tube (3) is fixed to an abutment (14) made of aluminum, in which the coil springs (11) are held. Insulation sleeves prevent electrical contact of the platinum wires (13) with the anvil (14) and the springs (11). The entire device is positioned so that the sensor chips (10) on the standard carrier plates (7) are located centrally in a high temperature oven.
  • the coil springs (11) are clearly at room temperature, outside the furnace, where they exert constant pressure, which is transmitted through the device described in the hot area.
  • the embodiment is largely made of aluminum oxide. This is the Operating temperature at approx. 1200 ° C. With other materials, this temperature could be further increased without changing the operating principle.
  • a force-generating device 101 (spring-elastic element, for example spiral spring or bent metal or metal alloy plates) is connected to a force plate 102 (eg, ceramic push rod) against a base plate 107 .
  • the force of the spring 101 acts in the direction 108.
  • the power transmission device 102 allows the transition from the cold area in a hot area (800 ° C to 1500 ° C).
  • an element 103 eg contact plate
  • a contact pressure and a contact pressure on the element 104 (eg a sensor) at the contact point 110 This pressure is used to press an electrically conductive material 106 on the element 104 .
  • at least one element 105 with at least two contact points 110 or several elements 105 with at least one contact point 110 are used. This makes it possible to contact the element 104 (eg a sensor) in a hot region (1000 ° C. to 1500 ° C., preferably 1200 ° C.).
  • the contact points are preferably offset from one another.

Landscapes

  • Measuring Leads Or Probes (AREA)
  • Thermally Actuated Switches (AREA)

Claims (8)

  1. Dispositif de contact électrique amovible d'un composant (7, 104), avec un conducteur électrique (13, 106), avec au moins un dispositif de génération de force (11,101), avec au moins un dispositif de transmission de force (6, 102) entreposé de manière mobile et avec au moins un dispositif de déviation de force (1, 2, 8, 103, 105), où le composant (7, 104) peut être mis en contact avec au moins un point de contact (15, 110) du conducteur électrique (13, 106), où le dispositif de génération de force (11, 101) génère une force de contact par le dispositif de transmission de force (6, 102) entre le point de contact (15, 110) du conducteur électrique (13, 106) et le composant (7, 104), et où le dispositif de génération de force (11, 101) peut être disposé dans une première zone froide du dispositif, et où le composant (7, 104) peut être disposé dans une seconde zone chaude du dispositif, caractérisé en ce que le conducteur électrique (13, 106) passe sans être soumis à une force par le dispositif de transmission de force (6, 102) entreposé de manière mobile, et en ce que le dispositif de transmission de force (6, 102) du dispositif est réalisé en céramique.
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif présente un dispositif de transmission de force (6, 102) d'une zone froide à une zone chaude.
  3. Dispositif selon les revendications 1 à 2, caractérisé en ce que la zone froide est comprise entre -200°C et 800°C, de préférence à 500°C et la zone chaude entre 900 °C et 1500°C, de préférence à 1200°C.
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce qu'au moins un point de contact (15, 110) soit disposé dans la zone chaude entre 900 °C et 1500°C, de préférence à 1200 °C.
  5. Dispositif selon les revendications 1 à 4, caractérisé en ce que le dispositif de transmission de force (6, 102) comprend un tube ou une barre en céramique.
  6. Dispositif selon les revendications 1 à 5, caractérisé en ce que le dispositif de déviation de force (1, 2, 8, 103, 105) comprend au moins une plaque de céramique ou au moins un bloc en céramique ayant au moins un point de contact (15, 110) et au moins un alésage.
  7. Dispositif selon les revendications 1 à 6, caractérisé en ce que plusieurs points de contact (15, 110) sont disposés en quinconce.
  8. Dispositif selon les revendications 1 à 6, caractérisé en ce que le dispositif, sur plusieurs plaques en céramique (1, 2, 103), est tel qu'elles agissent comme une entretoise.
EP20090170563 2009-09-17 2009-09-17 Dispositif concernant une mise en contact multiple à haute température amovible et électrique Not-in-force EP2299546B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20090170563 EP2299546B1 (fr) 2009-09-17 2009-09-17 Dispositif concernant une mise en contact multiple à haute température amovible et électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20090170563 EP2299546B1 (fr) 2009-09-17 2009-09-17 Dispositif concernant une mise en contact multiple à haute température amovible et électrique

Publications (2)

Publication Number Publication Date
EP2299546A1 EP2299546A1 (fr) 2011-03-23
EP2299546B1 true EP2299546B1 (fr) 2012-11-14

Family

ID=42270193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090170563 Not-in-force EP2299546B1 (fr) 2009-09-17 2009-09-17 Dispositif concernant une mise en contact multiple à haute température amovible et électrique

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EP (1) EP2299546B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266841A (en) * 1979-10-25 1981-05-12 The Bendix Corporation High voltage cable terminal
DE3920850A1 (de) 1989-06-24 1991-01-10 Feinmetall Gmbh Federkontaktstift
DE19740456A1 (de) 1997-09-15 1999-03-18 Bosch Gmbh Robert Kontaktierungseinrichtung
DE202004015917U1 (de) * 2004-10-13 2005-01-20 Virchow, Florian Kontaktierungselement zum elektrischen Kontaktieren von Bauteilen

Also Published As

Publication number Publication date
EP2299546A1 (fr) 2011-03-23

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