FR2748150A1 - Contact pad assembly for rechargeable battery powered portable apparatus, e.g. wireless telephone - Google Patents
Contact pad assembly for rechargeable battery powered portable apparatus, e.g. wireless telephone Download PDFInfo
- Publication number
- FR2748150A1 FR2748150A1 FR9605313A FR9605313A FR2748150A1 FR 2748150 A1 FR2748150 A1 FR 2748150A1 FR 9605313 A FR9605313 A FR 9605313A FR 9605313 A FR9605313 A FR 9605313A FR 2748150 A1 FR2748150 A1 FR 2748150A1
- Authority
- FR
- France
- Prior art keywords
- metal part
- flexible portion
- folded
- thickness
- pad 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
Links
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
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2442—Contacts for co-operating by abutting resilient; resiliently-mounted with a single cantilevered beam
-
- 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
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
PLOT DB CHARGE POUR APPAREIL PORTABLE A BATTERIE RBcHARGHABLB
La présente invention concerne un plot de charge pour un appareil portable à batterie rechargeable.PLOT DB CHARGE FOR PORTABLE DEVICE WITH RBcHARGHABLB BATTERY
The present invention relates to a charging pad for a portable device with rechargeable battery.
L'invention s'applique notamment à des appareils portables pour lesquels on souhaite une miniaturisation des composants en même temps qu'un coût minimal. Dans la suite de l'exposé, on considérera le cas où l'appareil en question est le combiné d'un poste téléphonique sans cordon, pour faciliter la discussion. Toutefois, on comprendra que l'invention est transposable à diverses autres catégories d'appareils portables. The invention applies in particular to portable devices for which it is desired to miniaturize the components at the same time as minimal cost. In the rest of the presentation, we will consider the case where the device in question is the handset of a cordless telephone set, to facilitate discussion. However, it will be understood that the invention can be transposed to various other categories of portable devices.
Trois types de solutions sont connus pour assurer la connexion entre une carte à circuit imprimé de l'appareil portable et les plots de sa base de chargement
1. Plots en saillie sur une face de l'appareil, avec une connexion filaire entre les plots et le circuit imprimé
2. Pièces soudées sur le circuit imprimé et venant faire saillie sur une face extérieure de l'appareil (leur positionnement est très problématique compte tenu des tolérances)
3. Utilisation de deux pièces distinctes pour chaque plot de charge.Three types of solutions are known for ensuring the connection between a printed circuit board of the portable device and the pads of its charging base
1. Projecting studs on one side of the device, with a wired connection between the studs and the printed circuit
2. Parts soldered on the printed circuit and projecting from an external face of the device (their positioning is very problematic given the tolerances)
3. Use of two separate parts for each load pad.
Outre les problèmes de miniaturisation qu' elles peuvent poser, ces trois solutions ont l'inconvénient d'un coût relativement élevé, dû notamment à la relative complexité des opérations de mise en place dans 1 'appareil. In addition to the problems of miniaturization that they can pose, these three solutions have the disadvantage of a relatively high cost, due in particular to the relative complexity of the operations of installation in one device.
Un but de la présente invention est de proposer un plot de charge qui soit moins sensible aux inconvénients ci-dessus. An object of the present invention is to provide a charging pad which is less sensitive to the above drawbacks.
L ' invention propose ainsi un plot de charge qui consiste en une pièce métallique ayant une première zone de contact constituée par un bord de ladite pièce métallique apparent sur une face extérieure de 1 'appareil de façon à pouvoir s 'appliquer contre un plot complémentaire d'une base de chargement, et une seconde zone de contact située sur une portion flexible d'épaisseur sensiblement plus faible que le reste de ladite pièce métallique et s'appliquant élastiquement contre un circuit imprimé interne à 1 'appareil
On réalise ainsi en une seule pièce la fonction de connectique entre le plot de la base de chargement et le circuit imprimé de l'appareil portable. Ceci permet de diminuer sensiblement le coût de cette fonction de connectique, d'autant plus que la pièce métallique peut être réalisée simplement au moyen d'outils de découpe et de mise en forme traditionnels.The invention thus provides a load pad which consists of a metal part having a first contact zone constituted by an edge of said visible metal part on an external face of the device so as to be able to be applied against a complementary pad of 'a charging base, and a second contact zone located on a flexible portion of thickness substantially smaller than the rest of said metal part and applying elastically against a printed circuit internal to one device
The connection function is thus produced in a single piece between the pad of the charging base and the printed circuit of the portable device. This makes it possible to significantly reduce the cost of this connection function, all the more since the metal part can be produced simply by means of traditional cutting and shaping tools.
Dans une réalisation typique, la pièce métallique a une épaisseur constante, sauf dans sa portion flexible portant la seconde zone de contact. Ces épaisseurs différentes peuvent être obtenues par fraisage, ou encore par laminage, à partir d'une bande de métal ayant à l'origine la plus grande des deux épaisseurs.In a typical embodiment, the metal part has a constant thickness, except in its flexible portion carrying the second contact zone. These different thicknesses can be obtained by milling, or even by rolling, from a metal strip originally having the greater of the two thicknesses.
De préférence, la pièce métallique a un corps de forme générale plane dont la périphérie est conformée pour assurer son maintien en place dans un logement de l'appareil portable, en assurant un jeu limité dans une direction permettant un fléchissement élastique de la portion flexible. On assure ainsi le contact élastique entre le plot et le circuit imprimé lorsque le plot est appliqué contre le plot complémentaire de la base, tout en limitant le déplacement du plot et donc les efforts auxquels est soumise sapartie flexible. La forme plane du corps de la pièce métallique permet de juxtaposer plusieurs pièces de ce type pour fournir le nombre de plots désiré en limitant l'encombrement requis. Preferably, the metal part has a body of generally planar shape, the periphery of which is shaped to ensure that it is held in place in a housing of the portable device, ensuring limited play in a direction allowing elastic flexing of the flexible portion. This ensures elastic contact between the pad and the printed circuit when the pad is applied against the complementary pad of the base, while limiting the displacement of the pad and therefore the forces to which the flexible part is subjected. The flat shape of the body of the metal part allows several pieces of this type to be juxtaposed to provide the desired number of studs while limiting the space required.
D'autres particularités et avantages de la présente invention apparaîtront dans la description ci-après d'un exemple de réalisation non limitatif, en référence aux dessins annexés, dans lesquels
- la figure 1 est une vue en perspective d'un plot de charge selon 1' invention
- la figure 2 est une vue en coupe partielle d'un poste téléphonique dont le combiné sans cordon comporte de tels plots de charge.Other features and advantages of the present invention will appear in the description below of a nonlimiting exemplary embodiment, with reference to the accompanying drawings, in which
- Figure 1 is a perspective view of a charging pad 1 according to the invention
- Figure 2 is a partial sectional view of a telephone set whose cordless handset includes such charging pads.
Le plot de charge représenté sur la figure 1 consiste en une pièce métallique unique 4, ayant un corps 6 d'épaisseur constante et de forme générale plane s 'étendant selon un premier plan, une portion 8 de même épaisseur repliée selon un second plan perpendiculaire au premier plan, et une portion flexible de moindre épaisseur s'étendant selon un troisième plan perpendiculaire aux premier et second plans et pouvant fléchir perpendiculairement à ce troisième plan. La portion flexible 10 se raccorde à une extrémité 12 de la portion repliée 8, rabattue selon le troisième plan. The charging pad represented in FIG. 1 consists of a single metallic piece 4, having a body 6 of constant thickness and of generally planar shape extending in a first plane, a portion 8 of the same thickness folded in a second perpendicular plane. in the foreground, and a flexible portion of lesser thickness extending in a third plane perpendicular to the first and second planes and capable of bending perpendicular to this third plane. The flexible portion 10 is connected to one end 12 of the folded portion 8, folded down according to the third plane.
A l'opposé de cette extrémité rabattue 12, le corps 6 de la pièce 4 comporte un bord 14 destiné à être apparent, légèrement en saillie, sur une face extérieure 16 de l'appareil portable 18 dans lequel est installé le plot (figure 2). Ce bord 14 constitue une première zone de contact du plot. Lorsque l'appareil portable 18 est posé sur sa base de chargement 20, le bord 14 du plot de charge vient s'appliquer contre un plot complémentaire 22 faisant saillie sur une face supérieure 24 de la base, dans une zone destinée à recevoir l'appareil 18. Ce plot 22 est relié à un transformateur de charge non représenté de la base. Comme le montre la figure 2, le bord 14 du plot de charge a un profil qui épouse celui de la face inférieure 16 de 1 'appareil portable pour assurer l'esthétique de l'appareil. Les arêtes du bord 14 sont de préférence chanfreinées. Opposite this folded end 12, the body 6 of the part 4 has an edge 14 intended to be visible, slightly projecting, on an external face 16 of the portable device 18 in which the stud is installed (FIG. 2 ). This edge 14 constitutes a first contact zone of the pad. When the portable device 18 is placed on its charging base 20, the edge 14 of the charging pad is applied against a complementary pad 22 projecting from an upper face 24 of the base, in an area intended to receive the device 18. This pad 22 is connected to a charge transformer not shown from the base. As shown in Figure 2, the edge 14 of the charging pad has a profile which matches that of the underside 16 of one portable device to ensure the aesthetics of the device. The edges of the edge 14 are preferably chamfered.
Le plot de charge comporte une seconde zone de contact 26 située sur sa portion flexible 10 de moindre épaisseur. Cette zone de contact 26, matérialisée par un pli de la portion flexible 10 dans l'exemple représenté sur les figures 1 et 2, s'applique élastiquement contre une plage métallisée du circuit imprimé 28 interne à 1 'appareil portable 18. Le circuit imprimé 28 porte les composants servant au chargement de la batterie (non représentée) de l'appareil 18, ainsi que plusieurs plages métallisées coopérant avec des plots de charge du même type que celui visible sur la figure 2 pour assurer les connexions entre ces composants et les composants complémentaires de la base de chargement. The charging pad has a second contact zone 26 located on its flexible portion 10 of lesser thickness. This contact area 26, materialized by a fold of the flexible portion 10 in the example shown in FIGS. 1 and 2, is applied elastically against a metallized area of the printed circuit 28 internal to the portable device 18. The printed circuit 28 carries the components used for charging the battery (not shown) of the device 18, as well as several metallized areas cooperating with charging pads of the same type as that visible in FIG. 2 to ensure the connections between these components and the additional components of the charging base.
La portion flexible de la pièce 4 fléchit élastiquement entre la zone de contact 26 et l'extrémité 12 à laquelle elle se raccorde, pour fournir un effort garantissant un bon contact électrique avec la plage métallisée du circuit imprimé. The flexible portion of the part 4 flexes elastically between the contact zone 26 and the end 12 to which it is connected, to provide a force guaranteeing good electrical contact with the metallized area of the printed circuit.
La périphérie du corps 6 de la pièce métallique 4 est conformée pour assurer son maintien en place dans un logement de 1 'appareil prévu pour recevoir le plot de charge. Dans l'exemple représenté sur la figure 2, l'appareil portable est un combiné sans cordon de poste téléphonique, dont le boîtier comporte une coque inférieure 30 et une coque supérieure 32. Le logement destiné à recevoir le plot de charge est prévu dans la coque inférieure 30, avec une ouverture dans sa face extérieure 16 à travers laquelle le bord 14 du plot fait saillie. Vers l'intérieur de l'appareil, les coques 30, 32 présentent des nervures 34, 36 servant à maintenir en place le circuit imprimé 28, et des nervures 38, 40 coopérant avec des butées 42, 44 que présente la périphérie du corps 6 de la pièce métallique 4 pour définir son logement dans l'appareil. Le dimensionnement des nervures 38, 40 des coques et de la périphérie du corps 6 de la pièce métallique formant le plot de charge est prévu pour autoriser un jeu limité d de la pièce 4 dans son logement, dans la direction de fléchissement de la portion flexible 10. Lorsque l'appareil portable 18 est posé sur sa base 20, la force de contact entre les plots 4 et 22 fait fléchir la portion 10 comme l'y autorise le jeu d. En limitant ce jeu d, on évite qu'une déformation excessive endommage la partie flexible 10. The periphery of the body 6 of the metal part 4 is shaped to ensure that it is held in place in a housing of the device intended to receive the charging pad. In the example shown in FIG. 2, the portable device is a cordless telephone set handset, the housing of which comprises a lower shell 30 and an upper shell 32. The housing intended to receive the charging pad is provided in the lower shell 30, with an opening in its outer face 16 through which the edge 14 of the stud projects. Towards the interior of the device, the shells 30, 32 have ribs 34, 36 serving to hold the printed circuit 28 in place, and ribs 38, 40 cooperating with stops 42, 44 which have the periphery of the body 6 of the metal part 4 to define its housing in the device. The dimensioning of the ribs 38, 40 of the shells and of the periphery of the body 6 of the metal part forming the load pad is provided to allow limited play d of the part 4 in its housing, in the direction of flexing of the flexible portion 10. When the portable device 18 is placed on its base 20, the contact force between the studs 4 and 22 causes the portion 10 to flex as authorized by the clearance d. By limiting this play d, an excessive deformation is prevented from damaging the flexible part 10.
Le plot de charge peut être réalisé par découpe et pliage d'une bande de métal fraisée pour avoir les deux épaisseurs requises. L'épaisseur de la portion flexible 10 est de préférence au moins 3 fois plus petite que celle du reste de la pièce métallique 4. A titre d'exemple, la portion flexible 10 peut avoir une épaisseur de 0,17 mm, et le reste de la pièce 4 une épaisseur de 0,8 mm. La longueur de la portion flexible 10 de moindre épaisseur est choisie suffisamment grande pour fournir un bras de levier permettant de limiter l'effort de contact avec le circuit imprimé 28. Le métal de la pièce 4 est par exemple un alliage cupro-nickel assurant une conduction t in électrique suffisante, nickelé après mise en forme de la pièce pour améliorer l'esthétique en assurant une faible résistance de contact. L'extrémité 46 de la portion flexible 10 peut être recourbée, comme représenté sur les figures 1 et 2, pour éviter que les plots s'emmêlent dans le bain de nickelage. The load pad can be produced by cutting and folding a milled metal strip to have the two required thicknesses. The thickness of the flexible portion 10 is preferably at least 3 times smaller than that of the rest of the metal part 4. For example, the flexible portion 10 may have a thickness of 0.17 mm, and the rest of the piece 4 a thickness of 0.8 mm. The length of the flexible portion 10 of smaller thickness is chosen to be large enough to provide a lever arm making it possible to limit the force of contact with the printed circuit 28. The metal of the part 4 is for example a cupro-nickel alloy ensuring a sufficient electrical conduction, nickel-plated after shaping of the part to improve the aesthetics while ensuring low contact resistance. The end 46 of the flexible portion 10 can be curved, as shown in FIGS. 1 and 2, to prevent the studs from becoming tangled in the nickel-plating bath.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605313A FR2748150B1 (en) | 1996-04-26 | 1996-04-26 | CHARGING PLOT FOR PORTABLE DEVICE WITH RECHARGEABLE BATTERY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605313A FR2748150B1 (en) | 1996-04-26 | 1996-04-26 | CHARGING PLOT FOR PORTABLE DEVICE WITH RECHARGEABLE BATTERY |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2748150A1 true FR2748150A1 (en) | 1997-10-31 |
FR2748150B1 FR2748150B1 (en) | 1998-07-17 |
Family
ID=9491637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9605313A Expired - Fee Related FR2748150B1 (en) | 1996-04-26 | 1996-04-26 | CHARGING PLOT FOR PORTABLE DEVICE WITH RECHARGEABLE BATTERY |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2748150B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000024176A1 (en) * | 1998-10-20 | 2000-04-27 | Siemens Aktiengesellschaft | Covering element for a multifunction input/output interface of a battery operated device, and a mobile radio terminal |
US7928602B2 (en) | 2007-03-30 | 2011-04-19 | Steelcase Development Corporation | Power floor method and assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230383A (en) * | 1978-11-09 | 1980-10-28 | Pittway Corporation | Integral contact |
EP0591723A2 (en) * | 1992-10-09 | 1994-04-13 | Molex Incorporated | Electrical connector system |
WO1994011925A1 (en) * | 1992-11-11 | 1994-05-26 | Elco Europe Limited | Electrical connector |
-
1996
- 1996-04-26 FR FR9605313A patent/FR2748150B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4230383A (en) * | 1978-11-09 | 1980-10-28 | Pittway Corporation | Integral contact |
EP0591723A2 (en) * | 1992-10-09 | 1994-04-13 | Molex Incorporated | Electrical connector system |
WO1994011925A1 (en) * | 1992-11-11 | 1994-05-26 | Elco Europe Limited | Electrical connector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000024176A1 (en) * | 1998-10-20 | 2000-04-27 | Siemens Aktiengesellschaft | Covering element for a multifunction input/output interface of a battery operated device, and a mobile radio terminal |
US7928602B2 (en) | 2007-03-30 | 2011-04-19 | Steelcase Development Corporation | Power floor method and assembly |
Also Published As
Publication number | Publication date |
---|---|
FR2748150B1 (en) | 1998-07-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0674358B1 (en) | Female electrical contact element | |
FR2707433A1 (en) | Card connector, in particular for electronic card. | |
FR2665556A1 (en) | MEMORY CARD HOUSING DEVICE. | |
EP0783992A1 (en) | Cradle for a portable radio terminal | |
FR2667713A1 (en) | MICRO-CIRCUIT BOARD READER, REDUCED. | |
FR2897720A1 (en) | Jumper structure for use in mother board, has elastic structure disposed in bottom of battery engagement portion for being electrically connected to one electrode of battery, and effective adjustment elements disposed on fixation portion | |
EP0859432A1 (en) | Female electrical contact member | |
FR2785725A1 (en) | Electrical connector for use on notebook computer includes screened connector block fitting into circuit board cut out to ensure low profile | |
EP0908915B1 (en) | Casing for an electrical apparatus such as a circuit breaker | |
FR2806863A1 (en) | PORTABLE ELECTRICAL APPARATUS CONTAINING A BATTERY | |
FR2748150A1 (en) | Contact pad assembly for rechargeable battery powered portable apparatus, e.g. wireless telephone | |
FR2585198A3 (en) | BRUSH HOLDER FOR ELECTRICAL EQUIPMENT HAVING MANIFOLDS, PARTICULARLY FOR STARTERS, AND APPLICATION | |
EP0802599B1 (en) | Floor outlet for electrical apparatus | |
EP2539721B1 (en) | Electric meter equipped with a removable cover that can be positioned in two positions | |
EP0893847B1 (en) | Electrical device with elastical cage-type terminals | |
EP3246579A1 (en) | Attachment element for a functional housing, in particular of a motor vehicle | |
EP0886415A1 (en) | Electronic device with a battery charging connector and equipment provided with such a device | |
EP0518739A1 (en) | Plug for electric connections | |
EP3109943B1 (en) | Electric connection device for an electrical appliance | |
EP0552996B1 (en) | Female electrical contact element | |
FR2714565A1 (en) | remote control for car central locking system | |
EP0960484B1 (en) | Combined radio telephone handset | |
EP0872923B1 (en) | Device for electrically connecting several electrical female contact elements | |
EP3381072B1 (en) | Removable flap for closing a location suitable for receiving at least one battery of an electronic device and corresponding electronic device | |
FR2858119A1 (en) | Electrical connection device, has screw that is rotated through external operation tool so that locking unit isolated from exterior is moved between locking and disengagement positions |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
CJ | Change in legal form | ||
CA | Change of address | ||
CD | Change of name or company name | ||
ST | Notification of lapse |