FR2838873A1 - Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface. - Google Patents

Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface. Download PDF

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Publication number
FR2838873A1
FR2838873A1 FR0212568A FR0212568A FR2838873A1 FR 2838873 A1 FR2838873 A1 FR 2838873A1 FR 0212568 A FR0212568 A FR 0212568A FR 0212568 A FR0212568 A FR 0212568A FR 2838873 A1 FR2838873 A1 FR 2838873A1
Authority
FR
France
Prior art keywords
blade
printed circuit
connection
welded
blade 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.)
Pending
Application number
FR0212568A
Other languages
French (fr)
Inventor
Claire Hardy
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.)
Continental Automotive France SAS
Original Assignee
Siemens VDO Automotive SAS
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 VDO Automotive SAS filed Critical Siemens VDO Automotive SAS
Priority to FR0212568A priority Critical patent/FR2838873A1/en
Publication of FR2838873A1 publication Critical patent/FR2838873A1/en
Pending 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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341—Surface mounted components
    • H05K3/3421—Leaded components
    • H05K3/3426—Leaded components characterised by the leads
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The connection strip (10) has a connection between a printed circuit and a conductor. A first end (12) is soldered to a printed circuit board, and the second end to a battery. The soldered end has a toothed edge (15) increasing the soldering control surface with the printed circuit.

Description

tenne. La presente invention concerne une lame de connexion reliant unetenne. The present invention relates to a connection blade connecting a

pile et un circuit electronique. II s'agit plus particulierement de la lame de contact entre une pile bouton et un circuit imprime portent un capteur de pression des pneus de vbhicules automobile. Cependant cette lame de connexion n'est pas limitee a cet emploi. II est connu de mesurer la pression regnant a l'interieur des pneumatiques d'un vehicule en deplacement (ou non) et de transmettre la valeur mesuree a une unite centrale placee soit dans la roue soit dans l'habitacle du  battery and an electronic circuit. More particularly, it is the contact blade between a button cell and a printed circuit carrying a tire pressure sensor for motor vehicles. However, this connection blade is not limited to this use. It is known to measure the pressure prevailing inside the tires of a moving vehicle (or not) and to transmit the measured value to a central unit placed either in the wheel or in the passenger compartment.

vehicule, pour traitement.vehicle, for treatment.

A cet effet le capteur de pression place dans la roue du vehicule est muni d'une pile de type, pile bouton, alimentant tout le dispositif electronique  For this purpose, the pressure sensor placed in the vehicle wheel is provided with a type battery, button cell, supplying the entire electronic device.

(circuit imprime) place a l'interieur du pneumatique du vehicule.  (printed circuit) placed inside the vehicle tire.

Ces piles vent ainsi soumises aux memes conditions d'echauffement, de vibrations et de chocs que les pneumatiques eux-memes. Notamment elles vent soumises a des forces d'acceleration importantes. Ces forces d'acceleration ont tendance a se propager le long de la lame de connexion (reliant la pile au circuit imprime) pour provoquer la desolidarisation du contact entre la lame et le circuit imprime. De ce fait l'alimentation electrique du circuit imprime est interrompue. Cet incident peut etre tres facheux dans la mesure ou la pression reg nant dans le pneu n'est pl us su rvei l lee, d ans ce cast Le but de la presente invention est de creer une connexion solide entre la lame de connexion et le circuit imprime qu'elle alimente. Cette connexion doit notamment pouvoir resister a de fortes forces d'accelerations (mats aussi aux chocs mecaniques et thermiques). De preference cette connexion est une  These batteries are thus subjected to the same heating, vibration and shock conditions as the tires themselves. In particular, they are subject to significant acceleration forces. These acceleration forces tend to propagate along the connection blade (connecting the battery to the printed circuit) to cause the separation of the contact between the blade and the printed circuit. As a result, the electrical supply to the printed circuit is interrupted. This incident can be very annoying insofar as the pressure prevailing in the tire is no longer su rvei l lee, in this cast The aim of the present invention is to create a solid connection between the connection blade and the circuit prints that it feeds. This connection must in particular be able to withstand strong acceleration forces (but also mechanical and thermal shocks). Preferably this connection is a

connexion soudee.soldered connection.

A cet effet la presente invention propose une lame de connexion electrique reliant une pile et un circuit imprime, la cite lame etant realisee en materiau conducteur et comportant une premiere extremite et une extremite a souder, la premiere extremite etant reliee a une pile et l'extremite a souder etant soudee au circuit imprime, la cite lame etant caracterisee en ce que son extremite a souder presente au moins un bord peripherique dentele, de maniere  To this end, the present invention provides an electrical connection blade connecting a battery and a printed circuit, the blade city being made of conductive material and comprising a first end and an end to be welded, the first end being connected to a battery and the end to be welded being welded to the printed circuit, the blade city being characterized in that its end to be welded has at least one peripheral serrated edge, so

a augmenter sa surface de contact et de soudure avec le circuit imprime.  to increase its contact and solder area with the printed circuit.

Grace a cette disposition la surface de contact entre la lame et le circuit imprime est considerablement augmentee, ce qui ameliore ['adhesion de la  Thanks to this arrangement, the contact surface between the blade and the printed circuit is considerably increased, which improves the adhesion of the

lame au circuit.blade to the circuit.

La partie dentelee realisee a la peripherie de la lame de connexion peut etre plus ou moins importante en fonction de la solidite recherchee. L'adhesion entre la lame de connexion et le circuit imprime est encore amelioree si l'on realise au moins un orifice dans la lame au niveau de la zone dentelee. De preference cet orifice est place au centre de la lame. Ainsi la repartition de la soudure sous toute la suRace de la lame de connexion est  The serrated part made at the periphery of the connection blade can be more or less important depending on the solidity sought. The adhesion between the connection blade and the printed circuit is further improved if at least one orifice is made in the blade at the level of the serrated zone. Preferably this orifice is placed in the center of the blade. Thus the distribution of the solder under all the suRace of the connection blade is

facilitee, et non plus uniquement en peripherie.  facilitated, and no longer only on the periphery.

Avantageusement les formes et dimensions donnees aux dents realisees a la peripherie de la lame vent libres. Chaque dent peut meme etre de  Advantageously, the shapes and dimensions given to the teeth produced at the periphery of the free wind blade. Each tooth can even be

forme differente.different shape.

D'autres objets, avantages et caracteristiques de la presente invention  Other objects, advantages and characteristics of the present invention

ressortiront d'ailleurs de la description qui suit, a titre d'exemple non limitatif, et  will emerge moreover from the description which follows, by way of nonlimiting example, and

en reference au dessin annexe, dans lequel: - La figure 1 est une vue schematique d'une extremite a souder d'une lame de connexion selon la presente invention, et - La figure 2 est une vue schematique d'une lame de connexion  with reference to the accompanying drawing, in which: - Figure 1 is a schematic view of a welding end of a connection blade according to the present invention, and - Figure 2 is a schematic view of a connection blade

selon ['invention, lorsqu'elle est soudee a un circuit imprime.  according to the invention, when soldered to a printed circuit.

Selon la forme de realisation representee aux figures 1 et 2, la lame de connexion 10 selon ['invention presente une premiere extremite 11, reliee de maniere connue en soi, a une pile, de type pile bouton, (non representee) et une seconde extremite 12 cite extremite a souder. Cette lame est. bien entendu,  According to the embodiment represented in FIGS. 1 and 2, the connection blade 10 according to the invention has a first end 11, connected in a manner known per se, to a battery, of the button cell type, (not shown) and a second end 12 quotes end to be welded. This blade is. of course,

realisee dans un materiau electriquement conducteur.  realized in an electrically conductive material.

L'extremite a souder 12, est soudee 13 (figure 2) a la surface d'un circuit imprime 14 et plus particulierement sur un plot de contact (non represente)  The end to be welded 12, is welded 13 (Figure 2) on the surface of a printed circuit 14 and more particularly on a contact pad (not shown)

prevu sur ce circuit imprime. Ce circuit est dispose sur un support 17.  planned on this circuit prints. This circuit is placed on a support 17.

Selon ['invention l'extremite a souder 12 de la lame presente une zone peripherique dentelee 15. Dans l'exemple represente a la figure 1 cette zone  According to the invention, the weld end 12 of the blade has a serrated peripheral zone 15. In the example shown in FIG. 1, this zone

dentelee s'etend sur trots cotes de l'extremite a souder.  serrated extends on trots dimensions of the end to be welded.

La forme de chacune des dents de la zone dentelee est libre. Dans l'exemple represente, elles vent toutes triangulaires et identiques, mais cela n'est pas une obligation. Ainsi chaque dent peut presenter une forme et une dimension differentes. En realisant ces indentations 15, on augmente la longueur de la peripherie de la lame 10 au niveau de sa zone a souder. Cette longueur accrue entrane une augmentation de la surface de contact entre la lame et le circuit  The shape of each of the teeth in the serrated area is free. In the example shown, they are all triangular and identical, but this is not an obligation. Thus each tooth can have a different shape and size. By making these indentations 15, the length of the periphery of the blade 10 is increased at the level of its zone to be welded. This increased length leads to an increase in the contact surface between the blade and the circuit

imprime 14.prints 14.

Ainsi, lorsque l'alliage de soudure 13 impregne cette partie de la lame, les zones de contact entre la lame et le circuit imprime vent plus importantes que dans le cas ou la lame presente un bord rectiligne. L'augmentation de la surface de contact entre la lame et le circuit imprime entrane une augmentation de la resistance mecanique du joint de soudure au niveau de la liaison de la lame avec  Thus, when the solder alloy 13 impregnates this part of the blade, the contact zones between the blade and the circuit prints larger wind than in the case where the blade has a straight edge. The increase in the contact surface between the blade and the printed circuit leads to an increase in the mechanical resistance of the solder joint at the connection of the blade with

le circuit.the circuit.

II en resulte une meilleure resistance du joint de soudure etablissant la connexion entre la lame et le circuit aux efforts d'accelerations, aux chocs et aux  This results in better resistance of the solder joint establishing the connection between the blade and the circuit to acceleration forces, shocks and

vibrations qu'avec une lame de connexion classique.  vibrations than with a conventional connection blade.

Avantageusement pour ameliorer la repartition de l'alliage de soudure sous toute la surface de l'extremite a souder de la lame de connexion (et ainsi augmenter encore la resistance mecanique du joint de soudure), un orifice 16 est realise sensiblement au centre de l'extremite a souder. De ce fait lors de la soudure 13, cette zone est plus facilement remplie. Cela permet de s'assurer que la soudure est non seulement repartie entre la lame 10 et le circuit imprime au niveau du bord peripherique dentele 15, mais aussi qu'une partie de cet alliage de soudure s'insere jusque sous la zone centrale de la zone a souder 12. La meilleure repartition de l'alliage de soudure sous ['ensemble de la partie 12 a souder garantit une zone de contact supplementaire entre le circuit imprime 14 et  Advantageously, in order to improve the distribution of the welding alloy under the entire surface of the welding end of the connection blade (and thus further increase the mechanical resistance of the welding joint), an orifice 16 is made substantially in the center of the end to be welded. Therefore during welding 13, this area is more easily filled. This ensures that the solder is not only distributed between the blade 10 and the printed circuit at the peripheral serrated edge 15, but also that a part of this solder alloy is inserted as far as the central zone of the zone to be welded 12. The better distribution of the solder alloy under the assembly of the part 12 to be welded guarantees an additional zone of contact between the printed circuit 14 and

la lame de connexion et accro^'t la force d'adhesion entre la lame et le circuit.  the connection blade and increases the adhesion force between the blade and the circuit.

Ceci permet d'eviter de creer des zones de << non adhesion >> sous la  This avoids creating "no adhesion" zones under the

lame (en raison d'une absence d'alliage de soudure).  blade (due to lack of solder alloy).

Pour accrotre la cohesion entre la lame et le circuit imprime, il est bien sur possible de realiser une pluralite d'orifices dans l'extremite a souder 12. II s'agit cependant ici de trouver un bon compromis et de ne pas fragiliser, outre  To increase the cohesion between the blade and the printed circuit, it is of course possible to make a plurality of orifices in the end to be welded 12. It is however here to find a good compromise and not to weaken, in addition

mesure, I'extremite de la lame en la perforant sur toute sa longueur.  measure, the end of the blade by perforating it over its entire length.

Dans la forme de realisation representee a la figure 2, on notera qu'en outre, pour ameliorer, le contact entre la lame 10 et le circuit imprime 14, il est possible de donner une certaine flexibilite a cette lame en la repliant (selon des lignes de pliages 19) vers le circuit imprime (figure 2). Ce repliement a pour but d'exercer une force de maintien F tendant a appliquer l'extremite a souder de la  In the embodiment shown in Figure 2, it will be noted that in addition, to improve, the contact between the blade 10 and the printed circuit 14, it is possible to give a certain flexibility to this blade by folding it (according to fold lines 19) to the print circuit (Figure 2). The aim of this folding is to exert a holding force F tending to apply the welding end of the

lame sur le circuit imprime.blade on the circuit prints.

On notera en outre que l'elasticite de la lame de connexion au voisinage de la zone de soudure (joint de soudure) entre la lame et le circuit imprime permet de menager le joint de soudure et de lui transmettre le moins  It will also be noted that the elasticity of the connection blade in the vicinity of the weld zone (solder joint) between the blade and the printed circuit makes it possible to maintain the solder joint and transmit it the least.

possible d'efforts mecaniques susceptibles de le deteriorer.  possible mechanical efforts likely to deteriorate it.

Pour faciliter le repliement 19 et augmenter l'elasticite de l'extremite 12 a souder, on realise une zone bilaterale amincie 18 (figures 1 et 2) entre les deux extremites de la lame de connexion 10. De preference cet amincissement est realise a proximite (mats en dehors) de la partie a souder 12 et de la zone  To facilitate the folding 19 and increase the elasticity of the end 12 to be welded, a thinned bilateral zone 18 (FIGS. 1 and 2) is produced between the two ends of the connection blade 10. Preferably this thinning is carried out nearby. (mast outside) of the part to be welded 12 and of the zone

peripherique dentelee 15.serrated periphery 15.

Bien entendu la presente invention n'est pas limitee aux modes de realisation ci-dessus decrits et englobe toute variante a la portee de l'homme de ['art.  Of course, the present invention is not limited to the embodiments described above and encompasses any variant within the reach of the man of [art.

Claims (8)

REVENDICATIONS 1. Lame (10) de connexion electrique reliant une pile et un circuit imprime (14), la cite lame etant realisee en materiau conducteur et comportant une premiere extremite (1 1) et une extremite a souder (12), la premiere extremite (1 1) etant reliee a la pile et l'extremite a souder (12) etant soudee au circuit imprime (14), la cite lame etant caracterisee en ce que son extremite a souder (12) presente au moins un bord dentele (15), de maniere a augmenter sa surface de  1. Electric connection blade (10) connecting a battery and a printed circuit (14), the blade city being made of conductive material and comprising a first end (1 1) and a soldering end (12), the first end ( 1 1) being connected to the battery and the end to be welded (12) being welded to the printed circuit (14), the blade city being characterized in that its end to be welded (12) has at least one serrated edge (15) , so as to increase its surface by contact et de soudure avec le circuit imprime.  contact and solder with the printed circuit. 2. Lame de connexion selon la revendication 1, caracterisee en ce que le  2. Connection blade according to claim 1, characterized in that the bord dentele (15) s'etend a la peripherie de l'extremite a souder (12) de la lame.  serrated edge (15) extends around the periphery of the weld end (12) of the blade. 3. Lame de connexion selon la revendication 1 ou 2, caracterise en ce l'extremite a souder (12) de la lame de connexion comporte au moins un orifice (16) adapte pour repartir l'alliage de soudure sous toute la surface de l'extremite  3. Connection blade according to claim 1 or 2, characterized in that the welding end (12) of the connection blade comprises at least one orifice (16) adapted to distribute the welding alloy under the entire surface of the 'end a souder de la lame.to weld the blade. 4. Lame de connexion selon la revendication 3, caracterisee en ce que I'orifice (16) est realise dans une partie centrale de l'extremite a souder de la lame.  4. Connection blade according to claim 3, characterized in that the orifice (16) is made in a central part of the welding end of the blade. 5. Lame selon l'une quelconque des revendications precedentes,  5. Blade according to any one of the preceding claims, caracterisee en ce que la lame est munie d'un amincissement bilateral (18)  characterized in that the blade is provided with bilateral thinning (18) adapte pour lui conferer une certaine elasticite.  adapts to give it a certain elasticity. 6. Lame selon la revendication 5, caracterisee en ce que l'amincissement bilateral (18) permet une flexion de la lame contre la surface du circuit imprime et favorise ainsi le contact entre ces deux elements, tout en evitant de transmettre  6. Blade according to claim 5, characterized in that the bilateral thinning (18) allows the blade to bend against the surface of the printed circuit and thus promotes contact between these two elements, while avoiding transmitting des efforts mecaniques au joint de soudure.  mechanical forces at the weld joint. 7. Lame de connexion selon la revendication 6 caracterisee en ce que  7. Connection blade according to claim 6 characterized in that I'amincissement (18) est realise en dehors de la zone dentelee (15).  The thinning (18) is carried out outside the serrated zone (15). 8. Lame selon l'une quelconque des revendications precedentes  8. Blade according to any one of the preceding claims caracterisee en ce que les dents constituent le bord dentele vent de formes et de  characterized in that the teeth form the serrated edge of shapes and
FR0212568A 2002-10-10 2002-10-10 Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface. Pending FR2838873A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0212568A FR2838873A1 (en) 2002-10-10 2002-10-10 Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0212568A FR2838873A1 (en) 2002-10-10 2002-10-10 Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface.

Publications (1)

Publication Number Publication Date
FR2838873A1 true FR2838873A1 (en) 2003-10-24

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ID=28686348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0212568A Pending FR2838873A1 (en) 2002-10-10 2002-10-10 Car vehicle tyre pressure detection connection strip having end connected battery second end having toothed edge increasing printed circuit connection soldering control surface.

Country Status (1)

Country Link
FR (1) FR2838873A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1601053A1 (en) 2004-05-25 2005-11-30 Nitto Denko Corporation Wired circuit board and connection structure of wired circuit board

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241134A (en) * 1990-09-17 1993-08-31 Yoo Clarence S Terminals of surface mount components
US5788544A (en) * 1995-09-08 1998-08-04 Siemens Aktiengesellschaft Multi-pole variable SMD terminal arrangement and method for its mounting on a circuit substrate
US6077106A (en) * 1997-06-05 2000-06-20 Micron Communications, Inc. Thin profile battery mounting contact for printed circuit boards

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241134A (en) * 1990-09-17 1993-08-31 Yoo Clarence S Terminals of surface mount components
US5788544A (en) * 1995-09-08 1998-08-04 Siemens Aktiengesellschaft Multi-pole variable SMD terminal arrangement and method for its mounting on a circuit substrate
US6077106A (en) * 1997-06-05 2000-06-20 Micron Communications, Inc. Thin profile battery mounting contact for printed circuit boards

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1601053A1 (en) 2004-05-25 2005-11-30 Nitto Denko Corporation Wired circuit board and connection structure of wired circuit board
US7286370B2 (en) 2004-05-25 2007-10-23 Nitto Denko Corporation Wired circuit board and connection structure of wired circuit board

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