EP3742238A1 - Batteriebefestigung mit verbessertem kontakt - Google Patents

Batteriebefestigung mit verbessertem kontakt Download PDF

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Publication number
EP3742238A1
EP3742238A1 EP19176110.5A EP19176110A EP3742238A1 EP 3742238 A1 EP3742238 A1 EP 3742238A1 EP 19176110 A EP19176110 A EP 19176110A EP 3742238 A1 EP3742238 A1 EP 3742238A1
Authority
EP
European Patent Office
Prior art keywords
arm
central part
portable object
accumulator
electronic module
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
EP19176110.5A
Other languages
English (en)
French (fr)
Inventor
Laurent Mouche
Pascal Lagorgette
Raphaël Balmer
Martin Jufer
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP19176110.5A priority Critical patent/EP3742238A1/de
Publication of EP3742238A1 publication Critical patent/EP3742238A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/06—Electric connectors, e.g. conductive elastomers

Definitions

  • the invention relates to a timepiece structure comprising at least one middle part and one back for enclosing an electronic or electrical module itself comprising a plate, a compartment of which is arranged for receiving an electrical energy accumulator, said module further comprising at least one circuit with at least one electrical contact zone, and a connection contactor for providing an electrical connection between a said accumulator and said at least one contact zone, said contactor being rigid and comprising elastic return means tending to bring it back to a geometry of rest.
  • the invention also relates to a timepiece comprising at least one such structure.
  • the invention relates to the field of watchmaking, and in particular to the field of watches comprising at least one electronic or electrical circuit supplied by an accumulator such as a battery or the like.
  • the invention relates more particularly to the mechanical and electrical connection between an accumulator and a circuit, on either side of a plate.
  • the quality of the electrical contacts in a watch must be guaranteed at all times, in any configuration of use, and in particular of acceleration or shock.
  • the permanence of the electrical supply from an accumulator in general a battery, necessitates a very good connection between the poles of this accumulator and the use circuit or circuits.
  • the fixing of a battery in a housing formed by spring tabs which hold the battery while ensuring contact on one of its poles. Contact with the other pole is commonly made by a flexible connector, or, preferably, by a tab making a spring, fixed by screws or rivets to a plate.
  • the object of the invention is in particular to overcome the various drawbacks of these known techniques.
  • a portable object comprising at least one middle part and one back to enclose an electronic module
  • said electronic module comprising a plate provided with a housing arranged for receiving an electrical energy accumulator, said electronic module comprising at least one circuit with at least one electrical contact zone, and a connecting contact member for providing an electrical connection between said accumulator and said at least one contact zone, said connecting contact member being elastically deformable and is formed of a shaped blade comprising a central part at the ends of which extend at least a first arm and a second converging arm.
  • the plate comprises at least one machining arranged to receive one end of an arm, said machining having a shape complementary to said end of said arm for clipping the latter and maintaining said accumulator of electrical energy in its housing.
  • the object of the present invention by its various functional and structural aspects described above, makes it possible to obtain a clasp for which the adjustment of the length of a strand is particularly easy and rapid.
  • the invention relates to the field of watchmaking, and in particular to the field of watches comprising at least one electronic or electrical circuit supplied by an accumulator such as a battery or the like.
  • the invention relates more particularly to the mechanical and electrical connection between an accumulator and a circuit, on either side of a plate.
  • an accumulator such as a battery or the like.
  • the invention relates to a structure 1 of a timepiece 100, in particular a watch, comprising at least one caseband 2 and a back 3 for enclosing an electronic or electrical module 10.
  • This electronic module 10 sends information to a display module.
  • This module 10 itself comprises a plate 4, a compartment or housing 41 of which is arranged for receiving an electric energy accumulator 5, in particular a battery.
  • the plate 4 can be arranged so that the compartment, in which the electric energy accumulator is placed, occupies almost the entire surface of the plate 4.
  • the compartment 41 of the plate 4 occupies the entire surface of the latter with the exception of a peripheral part defining said compartment 41. This allows the portable object to operate using an electric energy accumulator of larger size and therefore potentially more powerful or having a longer lifespan.
  • This module 10 also comprises at least one circuit 6 with at least one electrical contact zone 7, and a connecting contact member 8 to provide an electrical connection between an accumulator 5 and a contact zone 7.
  • This connecting contact member 8 is elastically deformable so that when it is subjected to a stress deforming it, its elastic capacity tends to bring it back to a rest geometry.
  • this connecting contact member 8 is entirely elastic and is produced in the form of a spring.
  • the connecting contact member is in the form of a shaped blade 8.
  • This shaped blade 8 comprises a central portion 81 which is rectilinear and having a flat profile as visible at the bottom. figure 1 .
  • the shaped blade 8 is arranged so that said first arm 83 and said second arm 83 extend in the same plane. It is understood that the first arm 83 and the second arm 83 extend along the plane perpendicular to the plane of the central part 81.
  • the first arm 83 and the second arm 83 extend so as to converge.
  • This configuration of the arms 83 makes it possible to obtain a 8-shaped blade which naturally has a gripper function. Indeed, when mounting the electric energy accumulator 5 in the plate, said accumulator 5 is, first of all, placed in its compartment. Then, the connecting contact member is fixed to said electronic module 10.
  • the plate 4 comprises two machining operations 11 arranged on its periphery, diametrically opposed as visible to the figures 2 and 3 .
  • These machining operations 11 are in the form of a groove with a rectangular section, the shape being complementary to that of the ends of the arms 83 of the blade 8 so as to clip the blade 8 onto the plate 4.
  • the first arm 83 and the second arm 83 are spaced apart and are placed in the machining 11 so as to clip the strip 8 onto the plate 4, the walls of the groove forming the machining 11 making it possible to guide and hold the blade 8 in place.
  • the stress exerted on the arms is then released so that the first and second arms 83 tend to resume their rest position, thus pinching the plate. It is then sufficient to exert a force on the central part of the force blade 8 to slide the latter and position it in its final position.
  • This final position is characterized by the fact that the central part 81 is in contact with the electric energy accumulator 5.
  • the first arm or the second arm is in contact with a contact zone 7 of the circuit. 6.
  • This contact zone 7 is in the form of a metallization which can be formed locally on the circuit 6.
  • the electronic module 10 is placed in the housing and the bottom is fixed.
  • This back 3 can be screwed or driven out or snapped to the caseband.
  • the electronic module 10 and the base 3 are arranged so that said base 3 and the connecting contact member 8 are in contact.
  • the central part 81 has a non-flat profile. More precisely, the central part 81 has a profile provided with several bent parts 84, that is to say that the central part 81 is in three dimensions. These bent parts 84 can be produced by plastically deforming said central part 81 so that the latter has a non-rectilinear profile, that is to say comprising projecting zones 87 preferably extending towards the stack.
  • the central part 81 comprises two bent parts 84. These bent parts 84 make it possible to improve the electrical contact. This improvement in electrical contact is due to the three-dimensional realization of the central part. Indeed, with this variant, the central part of the shaped blade 8 is in contact with the electric energy accumulator 5 only by the bent parts 84 with which it is provided.
  • the fact that the central part is three-dimensional causes, when the electronic module 10 is placed in the box 1 and the bottom 3 is fixed, the appearance of a constraint. This stress is exerted on the connecting contact member 8 which transmits this stress to the electronic module 10. This constraint is the result of the fact that the volume necessary to encompass the central part in three dimensions is greater than if said central part were flat. As soon as the internal dimensions of the case do not change, a constraint appears.
  • each arm 83 are bent so as to present a curvature opposite to the curvature of said arm 83, this free end 85 tending to diverge.
  • This configuration of the free ends 85 of the arms 83 makes it possible to facilitate the mounting of the connecting contact member 8.
  • the connecting contact member 8 is fixed to the electronic module 10
  • the angled free ends 85 will enter. in contact with the plate 4 at the level of the machining operations 11 provided to receive them.
  • the divergent curvature of said ends leads to a separation of the latter and therefore a separation of the arms 83.
  • This separation makes it possible to fix the connecting contact member 8 without the user having to separate the arms 83 himself. This operation is done naturally when the user wants to fix said connecting contact member 8, the latter also being guided in a rectilinear manner by the grooves 11.
  • the housings 11 may have a local protuberance extending over the width of the housing 11 to reinforce the clip fixing thanks to the bent ends 85.
  • the bend formed is then better retained thanks to the protuberance in machining 11 which forms a hard point and an additional retaining means.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
EP19176110.5A 2019-05-23 2019-05-23 Batteriebefestigung mit verbessertem kontakt Pending EP3742238A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19176110.5A EP3742238A1 (de) 2019-05-23 2019-05-23 Batteriebefestigung mit verbessertem kontakt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19176110.5A EP3742238A1 (de) 2019-05-23 2019-05-23 Batteriebefestigung mit verbessertem kontakt

Publications (1)

Publication Number Publication Date
EP3742238A1 true EP3742238A1 (de) 2020-11-25

Family

ID=66647071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19176110.5A Pending EP3742238A1 (de) 2019-05-23 2019-05-23 Batteriebefestigung mit verbessertem kontakt

Country Status (1)

Country Link
EP (1) EP3742238A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11281776A (ja) 1998-03-27 1999-10-15 Miyota Kk 基板接続ばね配置構造
CH707168A2 (fr) * 2012-11-08 2014-05-15 Eta Sa Manufacture Horlogère Suisse Fixation de pile dans un objet électronique portable.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11281776A (ja) 1998-03-27 1999-10-15 Miyota Kk 基板接続ばね配置構造
CH707168A2 (fr) * 2012-11-08 2014-05-15 Eta Sa Manufacture Horlogère Suisse Fixation de pile dans un objet électronique portable.

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