EP2437352A1 - Liaison par brasage - Google Patents

Liaison par brasage Download PDF

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Publication number
EP2437352A1
EP2437352A1 EP11450127A EP11450127A EP2437352A1 EP 2437352 A1 EP2437352 A1 EP 2437352A1 EP 11450127 A EP11450127 A EP 11450127A EP 11450127 A EP11450127 A EP 11450127A EP 2437352 A1 EP2437352 A1 EP 2437352A1
Authority
EP
European Patent Office
Prior art keywords
pin
recess
solder joint
solder
joint according
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
EP11450127A
Other languages
German (de)
English (en)
Other versions
EP2437352B1 (fr
Inventor
Christian Bauer
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.)
Electrovac Metall-Glaseinschmelzungs GmbH
Original Assignee
Electrovac Metall-Glaseinschmelzungs 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 Electrovac Metall-Glaseinschmelzungs GmbH filed Critical Electrovac Metall-Glaseinschmelzungs GmbH
Publication of EP2437352A1 publication Critical patent/EP2437352A1/fr
Application granted granted Critical
Publication of EP2437352B1 publication Critical patent/EP2437352B1/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
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/027—Soldered or welded connections comprising means for positioning or holding the parts to be soldered or welded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/70—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts

Definitions

  • the invention relates to a solder joint according to the preamble of claim 1.
  • solder joints for attaching a thin pin to a surface substantially at right angles.
  • the pin is provided with a substantially planar end face, which is butt soldered to the surface.
  • the disadvantage of this is that the pens in question, due to the mass production, have no flat faces, and therefore a corresponding processing step is required before the solder joint can be made. Furthermore, such a solder joint tends to shear off the pins, and has the disadvantage of low vibration resistance.
  • This is particularly disadvantageous when using correspondingly processed assemblies in vehicles disadvantage, since this can lead to increased failure rates.
  • This has a particularly disadvantageous effect when used in safety-relevant devices, such as an igniter for an airbag, whose function must be ensured, in particular, at high accelerations occurring.
  • solder joints in which the production of a flat surface according to the preceding paragraph is dispensed with.
  • a first such known solder joint is provided to blunt the rounded ends of a contact pin to a surface.
  • Such designs also have very poor mechanical properties.
  • a second such known solder joint is provided to guide a pin through a through hole and attach a conventional solder joint on both sides in the throat between the pin and the body.
  • solder joints are very inflexible in use.
  • the object of the invention is therefore to provide a solder joint of the type mentioned above, with which the mentioned disadvantages can be avoided, with which the preparatory work for the preparation of a semifinished product can be reduced to the solder joint, and increases the safety of the solder joint, especially against shearing can be, and which is flexible.
  • a solder joint can be formed, which has a high security against mechanical damage, especially against shearing, since due to the wetting of both the pin, and the lateral surface of the first recess any notch effects are avoided, and a lateral force transmission via the solder material on the lateral surface the first recess is made possible.
  • a pin can essentially be processed without further preparatory mechanical processing since no planar end face is required. This allows pins with rounded or sharpened ends to be securely soldered without further processing of such ends.
  • corresponding pins such as for the most preferred use in ignition base for gas generator igniter, after their production rounded ends. Such pins can now be processed without further post-processing. As a result, the production costs and the production costs can be reduced.
  • a solder joint according to the invention is also versatile and flexible.
  • the Fig. 1 to 12 each show preferred arrangements or details of arrangements of an electrically conductive body 1 and a - connected by means of a solder joint to the body 1 - electrically conductive first pin 2, wherein in a first surface 3 of the body 1, a first recess 4 is arranged the first pin 2 is arranged in regions in the first recess 4, wherein in a gap 5 between a first lateral surface 6 of the first recess 4 and the first pin 2, a solder material 7 is arranged, and wherein the solder material 7 at least partially both at the first pin 2, as well as on the first lateral surface 6 is arranged.
  • a solder joint can be formed, which has a high security against mechanical damage, especially against shearing, since due to the wetting of both the first pin 2, and the first lateral surface 6 of the first recess 4 any notch effects are avoided, and a lateral power transmission via the solder material 7 is made possible on the first lateral surface 6 of the first recess 4.
  • a first pin 2 can be processed essentially without further preparatory mechanical processing, since no plane end face is required. This allows pins with rounded or sharpened ends to be securely soldered without further processing of such ends.
  • corresponding pins for example for the particularly preferred use in detonator socket 13 for gas generator igniter, after the production of rounded ends on. Such pins can now be processed without further post-processing. As a result, the production costs and the production costs can be reduced.
  • a solder joint according to the invention is also versatile and flexible.
  • solder joint designates a connection of two or more metallic parts by means of a molten solder, which at least partially wets the surfaces of the at least two interconnected parts, in particular at least partially diffused into the respective surfaces.
  • solder material preferably comprises any type of alloy and / or a pure metal which can be used for hard and / or soft soldering, in particular any type of solder or solder.
  • solder joints according to the invention relates to fuse base 13, as used for example in gas generators, airbags or belt tensioners for safety belts in vehicles use.
  • a gas generator is a fire set, which is provided and designed so that its combustion gases fill a cavity, such as the interior of an airbag.
  • the Fig. 1 to 12 show four different preferred embodiments of such Zündersockel 13. Subsequently, the solder joint according to the invention will be explained in more detail with reference to these preferred embodiments. However, the use of solder joints according to the invention is not limited to this application. This can also be provided for connecting other components or assemblies.
  • the subject invention relates to a solder joint in which it is provided to connect a first pin 2, therefore a thin rod with a preferably round cross section, to a body 1.
  • the body 1 has - to form the solder joint - a first surface 3, in which a first recess 4 is arranged.
  • the first recess 4 which may be of different design, has a bottom region 8 and a first lateral surface 6.
  • the bottom region 8 denotes a bottom of the first depression 4 and preferably the region surrounding this base normal to the first surface 3, in particular if the floor is not flat.
  • the first lateral surface 6 denotes the surface which extends between the first surface 3 and the bottom region 8. It is preferably provided that the first lateral surface 6 is at least partially inclined and / or rounded relative to the first surface 3. It is preferably provided that the first recess 4 is frusto-conical or truncated pyramid shaped.
  • the first pin 2 is arranged at least partially in the first recess 4. It is preferably provided that a diameter or a diagonal of the first recess 4 is always larger than a diameter or a corresponding diagonal of the first pin 2 in the region of the first recess 4. Thereby, there is a gap 5 between the first lateral surface 6 of the first Well 4 and arranged in this first pin 2. In this space 5 at least partially a solder material 7 is arranged, wherein it is preferably provided that substantially the entire bottom portion 8 of the first recess 4 is covered with the solder material 7. According to the invention it is further provided that the solder material 7 is at least partially disposed both on the first pin 2, and on the lateral surface 6, therefore liable.
  • the Fig. 1 to 3 show a first preferred embodiment of a Zündersockels 13, with an electrically conductive base body 14, a first contact pin 15 and a second contact pin 16, wherein the first contact pin 15 is electrically conductively connected to the base body 14, and wherein the second contact pin 16, from the main body 14th electrically insulated and gas-tight, is guided by the main body 14.
  • the first contact pin 15 is connected to the main body 14 by means of a solder connection according to the invention.
  • the first contact pin 15 corresponds to the first pin 2, and the main body 14 to the body. 1
  • the first contact pin 15, which is conductively connected to the main body 14, is preferably provided for the mass connection of the ignition base 13, whereas the second contact pin 16, which is electrically insulated from the main body 14, is intended for Power supply is provided.
  • the main body 14 has a substantially cylindrical disc-shaped basic shape, and is preferably formed comprising steel.
  • the second contact pin 16 is guided through a passage opening of the main body 14, and electrically insulated from the base body 14 by means of a glass body 19, wherein the relevant compound is further designed to be gas-tight.
  • Such compounds are also referred to as " glass to metal seal" GTMS short. It is preferably provided that the base body 14 is fused to the second contact pin 16 by means of the glass mass 19.
  • the first recess 4 is arranged, in which the first contact pin 15 is held by means of a solder connection according to the invention, wherein - as preferably provided - substantially in the entire space 5 in the bottom portion 8 of the first recess 4, the solder material 7 is arranged.
  • the first recess 4 is formed as a blind hole.
  • the first pin 2 or the first contact pin 15 is arranged in the blind hole 4.
  • the ignition means facing side 17 of the ignition base 13 is unaffected by the solder joint.
  • voltage peaks due to impurities on the surface on the side facing the ignition means 17 of the fuse base 13 can be avoided.
  • the recess 4 may be formed substantially frusto-conical. This shape allows a particularly reliable and secure embedding of the first contact pin 15.
  • the first recess 4 may also be formed in a pyramidal shape. In other embodiments, a cylindrical shape may also be provided.
  • One end of the first pin 2 or the first contact pin 15 is arranged in the first recess 4 and soldered to the base body 14.
  • the arranged in the recess 4 end of the first pin 2 and the first contact pin 15 may be formed rounded or sharpened.
  • the first pin 2 and the first contact pin 15 after its production without further Machining be soldered securely.
  • the first pin 2 or first contact pin 15 is arranged substantially normal to the first surface 3. It is provided in particular that the first pin 2 or first contact pin 15 is arranged at least in the region of the solder joint normal to the first surface 3. As a result, the soldering process is improved because the formation of the solder meniscus is improved.
  • the 4 to 6 show a second preferred embodiment of a fuze base 13, wherein the basic structure of the first preferred embodiment according to the Fig. 1 to 3 equivalent.
  • the main body 14 of this second preferred embodiment likewise has a frustoconical first recess 4, wherein a receiving opening 9 is subsequently arranged on the bottom region 8 of the first recess 4.
  • This receiving opening 9 has a substantially opposite to the first contact pin 15 cross section, wherein it is preferably provided that the receiving opening 9 has dimensions which allow insertion of the first contact pin 15 with a small clearance.
  • the receiving opening 9 is formed as a blind hole. However, as shown, it is preferably provided that the receiving opening 9 is formed as a through-hole, whereby a particularly good connection between the first contact pin 15 and the main body 14 can be achieved.
  • the first pin 2 and the first pin in the receiving opening 9 is arranged.
  • the solder material 7 is arranged in a gap 10 between a pin skirt surface 11 of the first pin 2 and a second lateral surface of the receiving opening 9 in a gap 10 between a pin skirt surface 11 of the first pin 2 and a second lateral surface of the receiving opening 9 in a gap 10 between a pin skirt surface 11 of the first pin 2 and a second lateral surface of the receiving opening 9 at least partially the solder material 7 is arranged. This can be dispensed with a complex Vorbelöten the first pin 2 and the first contact pin 15, whereby a further processing step can be saved. It is preferably provided that the gap 10 is substantially completely filled with the solder material.
  • the gap 10 has a width and a height which, in interaction with a certain solder material 7 and a specific processing temperature, results in the penetration of the solder material 7 into the gap 10 due to the capillary action.
  • both the processing can be further simplified, and the safety of the solder joint can be increased, since the effective area of the solder joint is very large.
  • the load capacity of the solder joint and the entire ignition base 13 can be improved.
  • the security against destruction of the Zündersockels 13 - such as when igniting the gas generator - be improved.
  • the first pin 2 arranged in the receiving opening 9 penetrates the main body 14.
  • both the first and the second contact pin 15, 16 are flush with the first side 17 of the main body 14.
  • the planar surface on the first side 17 is preferably achieved by grinding the base body 14 after the solder joint has been produced. The use of rounded end pins is therefore not limited in the second embodiment.
  • Fig. 7 to 9 show a third preferred embodiment of a fuze base 13 for a gas generator, wherein the basic structure of the second preferred embodiment according to the 4 to 6 equivalent.
  • a second recess is further provided on the first side 17, the use of which a second solder joint according to the invention is realized. Furthermore, the gap 10 is filled with solder 7. The ends of the two contact pins 15, 16 are unprocessed and have the production-related curves.
  • the second recess forms at the edge of an annular elevation, which has a sharp edge.
  • This preferably serves as a reservoir for a solder material 7, wherein it is preferably provided to abrade the edge and optionally the protruding parts of the first and / or second pin 2, 18 on the first side 17 in order to form a planar surface on the first side 17 ,
  • the 10 to 12 show a fourth preferred embodiment of a fuze base 13, wherein the basic structure of the second preferred embodiment according to the 4 to 6 corresponds, wherein the first surface 3 is arranged on the first side 17, and project the ends of the two contact pins on this first surface 3.
  • the solder joint according to the invention is therefore arranged only on the first side 17 of the base body 14.
  • the parts of the first and / or second pin 2, 18 projecting on the first side 17 are ground to form a planar surface on the first side 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Air Bags (AREA)
EP11450127.3A 2010-09-30 2011-09-29 Liaison par brasage Not-in-force EP2437352B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT16382010A AT510474B1 (de) 2010-09-30 2010-09-30 Lötverbindung

Publications (2)

Publication Number Publication Date
EP2437352A1 true EP2437352A1 (fr) 2012-04-04
EP2437352B1 EP2437352B1 (fr) 2017-03-08

Family

ID=45098998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11450127.3A Not-in-force EP2437352B1 (fr) 2010-09-30 2011-09-29 Liaison par brasage

Country Status (2)

Country Link
EP (1) EP2437352B1 (fr)
AT (1) AT510474B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513904A1 (de) * 2013-01-23 2014-08-15 Electrovac Hacht & Huber Gmbh Zündersockel
AT513921A1 (de) * 2013-01-23 2014-08-15 Electrovac Hacht & Huber Gmbh Zündersockel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014219127A1 (de) * 2014-09-23 2016-03-24 Schott Ag Durchführungselement mit angeschweißtem Massestift, Verfahren zu seiner Herstellung und seine Verwendung
DE102014219125A1 (de) * 2014-09-23 2016-03-24 Schott Ag Durchführungselement mit direkt verbundenem Massestift, Verfahren zu seiner Herstellung und seine Verwendung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906858A (en) * 1974-07-30 1975-09-23 Us Eneregy Research And Dev Ad Miniature igniter
US20100199872A1 (en) * 2009-02-12 2010-08-12 Schott Ag Shaped feed-through element with contact rod soldered in

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2778575B2 (ja) * 1996-03-29 1998-07-23 日本電気株式会社 プリント基板の接続方法
JPH10321986A (ja) * 1997-05-15 1998-12-04 Oki Electric Ind Co Ltd 部品実装構造
FR2781878B1 (fr) * 1998-07-31 2001-02-16 Giat Ind Sa Procede de mise en oeuvre d'une substance pyrotechnique et initiateur pyrotechnique obtenu avec un tel procede
DE19928320A1 (de) * 1999-06-16 2001-01-04 Siemens Ag Elektrisch leitende Verbindung zwischen einer Endelektrode und einem Anschlußdraht
JP3473566B2 (ja) * 2000-08-31 2003-12-08 イビデン株式会社 ピン立て型プリント回路基板
US7124688B2 (en) * 2000-12-08 2006-10-24 Special Devices, Inc. Overmolded body for pyrotechnic initiator and method of molding same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906858A (en) * 1974-07-30 1975-09-23 Us Eneregy Research And Dev Ad Miniature igniter
US20100199872A1 (en) * 2009-02-12 2010-08-12 Schott Ag Shaped feed-through element with contact rod soldered in

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513904A1 (de) * 2013-01-23 2014-08-15 Electrovac Hacht & Huber Gmbh Zündersockel
AT513921A1 (de) * 2013-01-23 2014-08-15 Electrovac Hacht & Huber Gmbh Zündersockel
AT513904B1 (de) * 2013-01-23 2014-11-15 Electrovac Hacht & Huber Gmbh Zündersockel
WO2014115026A3 (fr) * 2013-01-23 2014-11-20 Electrovac Hacht & Huber Gmbh Socle d'amorçage
AT513921B1 (de) * 2013-01-23 2015-05-15 Electrovac Hacht & Huber Gmbh Zündersockel

Also Published As

Publication number Publication date
EP2437352B1 (fr) 2017-03-08
AT510474B1 (de) 2013-11-15
AT510474A1 (de) 2012-04-15

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