EP0565998A2 - Dispositif de contact à pince pour un élément électrique - Google Patents

Dispositif de contact à pince pour un élément électrique Download PDF

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Publication number
EP0565998A2
EP0565998A2 EP93105689A EP93105689A EP0565998A2 EP 0565998 A2 EP0565998 A2 EP 0565998A2 EP 93105689 A EP93105689 A EP 93105689A EP 93105689 A EP93105689 A EP 93105689A EP 0565998 A2 EP0565998 A2 EP 0565998A2
Authority
EP
European Patent Office
Prior art keywords
caps
spring elements
ptc thermistor
tongues
free end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93105689A
Other languages
German (de)
English (en)
Other versions
EP0565998B1 (fr
EP0565998A3 (en
Inventor
Sigurd Dipl.-Ing. Greiderer
Bernd Dipl.-Ing. Gruhn
Robert Dipl.-Ing. Karner
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.)
TDK Electronics AG
Original Assignee
Siemens Matsushita Components 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 Siemens Matsushita Components GmbH and Co KG filed Critical Siemens Matsushita Components GmbH and Co KG
Publication of EP0565998A2 publication Critical patent/EP0565998A2/fr
Publication of EP0565998A3 publication Critical patent/EP0565998A3/de
Application granted granted Critical
Publication of EP0565998B1 publication Critical patent/EP0565998B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/01—Mounting; Supporting
    • H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections

Definitions

  • the present invention relates to a device for clamping contacting of electrical components according to the preamble of patent claim 1.
  • PTC thermistors with contact to terminals are known.
  • Such components consist in principle of a PTC thermistor, two spring elements which are resiliently engaged with the PTC thermistor disc, and a housing from which free ends of the spring elements protrude and thus form external connections for the component.
  • the housing is a closed design, which keeps the PTC thermistor and the spring elements in position relative to each other.
  • the heat dissipation from the PTC thermistor is not optimal in such an embodiment of the component.
  • the present invention has for its object to provide a clamp contact for electrical components, in particular PTC thermistors, with improved heat dissipation to the outside.
  • FIGS. 1 and 2 show, two caps 2 and 3 made of insulating material, in particular of plastic, are initially provided for a clamping contact of a component pane of an electrical component.
  • the component disc is formed by a PTC thermistor disc 1, which has a circular cross section, as can be seen from FIG. 1.
  • the plastic caps 2 and 3 are generally cup-shaped and have an essentially U-shaped cross section, as can be seen from FIG.
  • recesses 4 and 5 are provided, which serve to accommodate spring elements for the clamping contact in a manner to be explained below.
  • Figure 3 shows an embodiment of such a spring element.
  • An elongated leg of this spring element 8 has in the area between its Ends an arcuate piece 10, the convex side of which rests under pressure on the PTC thermistor 1, as will be explained in more detail below.
  • a short free end 11 of the elongated leg of the spring element 8 is received by one of the two caps, namely the cap 2, during the clamping contact of the semiconductor wafer 1, while the other longer free end 12 of the elongated leg of the spring element 8 is received by the other cap 3 becomes.
  • Two tongues 9 at the ends of the arcuate piece 10 snap into the recesses 4 and 5 when the spring element 8 is inserted into the caps 2 and 3.
  • a pair of caps 2, 3 is formed such that one cap, namely the cap 2, has grooves 6, which, as seen in FIG. 2, are closed at the top of the cap 2. These grooves 6, closed on one side, serve to receive the free end 11 of two spring elements 8, the tongue 9 adjacent to this free end 11 being able to snap into a recess 4 of the cap 2.
  • grooves 7 are also provided in the cap 3, but these are open on both sides, so that a spring element 8 with its longer free end 12 can be inserted through these notes 7 such that the tongue 9 adjacent to this free end into the recess 5 can snap into place.
  • grooves 6 in the cap 2 are closed on one side. Like the grooves 7 in the cap 3, they can be open on both sides. This is not specifically shown in Figure 2.
  • FIGS. 4 and 5 show how two spring elements 8 in two caps 2 and 3 both electrically contact a PTC thermistor 1 and hold it mechanically between caps 2 and 3 by clamping.
  • FIG. 5 specifically shows how the curved pieces 10 of the two spring elements 8 press with their convex side against the semiconductor wafer 1 and thus hold them mechanically in their position between the caps 2 and 3. From Figure 4 it can be seen that the arcuate piece 10 can be made wider than the free ends (in Figure 4, the free end 12 is visible), whereby the contact surface on the PTC thermistor 1 is sufficiently large to ensure secure clamping .
  • the longer free ends 12 of the spring elements 8 simultaneously serve as electrical external connections for the PTC thermistor component, which is formed by the PTC thermistor pill 1, the caps 2 and 3 and the spring elements 8.
  • the caps 2, 3 Since only a part of the PTC thermistor 1 is covered by the caps 2, 3 and the contacting areas of the spring elements in the terminal contacting according to the invention, a significantly better heat dissipation is achieved compared to embodiments with closed housings.
  • the caps can also have shapes that differ from the shape shown in the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermistors And Varistors (AREA)
  • Details Of Resistors (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP93105689A 1992-04-15 1993-04-06 Dispositif de contact à pince pour un élément électrique Expired - Lifetime EP0565998B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212654 1992-04-15
DE4212654 1992-04-15

Publications (3)

Publication Number Publication Date
EP0565998A2 true EP0565998A2 (fr) 1993-10-20
EP0565998A3 EP0565998A3 (en) 1994-09-07
EP0565998B1 EP0565998B1 (fr) 1996-03-13

Family

ID=6456898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105689A Expired - Lifetime EP0565998B1 (fr) 1992-04-15 1993-04-06 Dispositif de contact à pince pour un élément électrique

Country Status (3)

Country Link
EP (1) EP0565998B1 (fr)
AT (1) ATE135489T1 (fr)
DE (1) DE59301834D1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180588A (ja) * 1986-01-16 1986-08-13 Matsushita Refrig Co 正特性サーミスタ装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180588A (ja) * 1986-01-16 1986-08-13 Matsushita Refrig Co 正特性サーミスタ装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 4 (E-468)7. Januar 1987 & JP-A-61 180 588 (MATSUSHITA REFRIG CO) 13. August 1986 *

Also Published As

Publication number Publication date
EP0565998B1 (fr) 1996-03-13
DE59301834D1 (de) 1996-04-18
ATE135489T1 (de) 1996-03-15
EP0565998A3 (en) 1994-09-07

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