EP0390070A2 - Elektrodenkonstruktion für eine Batterie in einem elektrischen Gerät - Google Patents

Elektrodenkonstruktion für eine Batterie in einem elektrischen Gerät Download PDF

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Publication number
EP0390070A2
EP0390070A2 EP90105810A EP90105810A EP0390070A2 EP 0390070 A2 EP0390070 A2 EP 0390070A2 EP 90105810 A EP90105810 A EP 90105810A EP 90105810 A EP90105810 A EP 90105810A EP 0390070 A2 EP0390070 A2 EP 0390070A2
Authority
EP
European Patent Office
Prior art keywords
battery
minus
electrode
contacts
pole
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
EP90105810A
Other languages
English (en)
French (fr)
Other versions
EP0390070A3 (de
EP0390070B1 (de
Inventor
Jun Ohbuchi
Kougi C/O Mitsubishi Denki K.K. Kuga
Toru Tachikawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0390070A2 publication Critical patent/EP0390070A2/de
Publication of EP0390070A3 publication Critical patent/EP0390070A3/de
Application granted granted Critical
Publication of EP0390070B1 publication Critical patent/EP0390070B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2492—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point multiple contact points

Definitions

  • the present invention relates to an electrode construction of a battery in an electrical equipment, such as an IC card.
  • Fig. 7 is a perspective view showing a conventional electrode construction of a battery in an IC card.
  • a battery 1 has a minus pole 2 and a plus pole 3.
  • a minus electrode 4 has two minus-pole contacts 5a and 5b to be con­nected with the minus pole 2 of the battery 1 respectively, and a fixing part 6 fixed in a battery chamber (not shown) of an IC card.
  • the fixing part 6 is electrically connected with an electric circuit (not shown) of the IC card, the electric circuit having semiconductor elements to store storage data.
  • Both of the minus-pole contacts 5a and 5b are formed so as to have the same shape (in length, width, thickness and so on) with each other.
  • a plus electrode 7 has two plus-pole contacts 8a and 8b to be connected with the plus pole 3 of the battery 1 respectively, 80 and a fixing part 9 fixed in the battery chamber of the IC card.
  • the fixing part 9 is electrically connected with the electric circuit of the IC card.
  • Both of the plus-pole con­tacts 8a and 8b are formed so as to have the same shape with each other.
  • the minus pole 2 When the battery 1 is detachably installed in the battery chamber of the IC card, the minus pole 2 is electrically con­nected with the minus electrode 4 through the minus-pole con­ tacts 5a and 5b, while the plus pole 3 is electrically con­nected with the plus electrode 7 through the plus-pole con­tacts 8a and 8b. Thus, an electrical power of the battery 1 is nected with the plus electrode 7 through the plus-pole con­tacts 8a and 8b. Thus, an electrical power of the battery 1 is supplied to the electric circuit of the IC card through the minus and plus electrodes 4 and 7.
  • ⁇ F (l, E, I, m) where l is a length of the minus-pole contact, E is a longitu­dinal section modulus, I is a moment of inertia, and m is a linear density.
  • the minus-pole con­tacts 5a and 5b have the same characteristic frequency with each other since they have the same shape, and the plus-pole contacts 8a and 8b have the same characteristic frequency with each other by the same reason.
  • both of the minus-pole contacts 5a and 5b simultaneously oscillate and move away from the minus pole 2 of the battery 1, whereby the power supply from the battery 1 to the electric circuit of the IC card is cut off eliminating the storage data stored in the semiconductor elements of the electric circuit.
  • a principal object of the present invention is to provide an electrode construction of a battery in an electri­cal equipment which can maintain a power supply from the bat­tery through the minus and plus electrodes in a reliable man­ner, even if an oscillation with any frequency is applied to the electrical equipment and the respective electrodes.
  • the present invention is directed to an electrode construction of a battery in an electrical equipment, wherein the electri­cal equipment comprises a battery chamber, a plus electrode and minus electrode provided in the battery chamber, respec­tively, and a battery having a plus pole to be connected with the plus electrode and a minus pole to be connected with the minus electrode in a state so that the battery is detachably installed in the battery chamber.
  • the inventive electrode con­struction is characterized in that the plus electrode and/or the minus electrode comprise a plurality of contacts to be connected with the battery, at least two contacts out of the plurality of contacts having a different shape from each other.
  • the characteristic frequen­cies of these contacts are different from each other.
  • the other contact keeps in contact with the battery without resonating.
  • Fig. 1 is a perspective view showing an IC card to which an embodiment of the present invention is applied
  • Fig. 2 is a horizontal sectional view of a main part of the IC card
  • Fig. 3 is a vertical sectional view of the main part of the IC card
  • Fig. 4 is a perspective view showing an embodiment of an electrode construction according to the present invention.
  • An IC card 10 has a body 11 in which an electric circuit 12 is formed.
  • the electric circuit 12 has semiconductor elements to store storage data.
  • a battery chamber 13 is formed in the body 11, and the battery 1 having a minus pole 2 and a plus pole 3 is detachably installed in the battery chamber 13 through a battery holder 14.
  • the battery holder 14 has a supporting part 15 for supporting the battery 1 and convex parts 16 for de­tachably engaging with recessed parts 17 formed in the battery chamber 13, respectively.
  • a minus electrode 4 has two minus-pole contacts 5a and 5b to be connected with the minus pole 2 of the battery 1, respec­tively, and a fixing part 6 fixed in the battery chamber 13.
  • the fixing part 6 is electrically connected with the electric circuit 12.
  • Both of the minus-pole contacts 5a and 5b are formed in a strip-shape. respectively, and having a different length from each other.
  • a plus electrode 7 has two plus-pole contacts 8a and 8b to be connected with the plus pole 3 of the battery 1, respectively, and a fixing part 9 is fixed in the battery chamber 13.
  • the fixing part 9 is electrically connected with the electric cir­cuit 12.
  • Both of the plus-pole contacts 8a and 8b are formed so as to have the same shape with each other.
  • the minus pole 2 of the battery 1 is electrically connected with the minus electrode 4 through the minus-pole contacts 5a and 5b, while the plus pole 3 is electrically connected with the plus electrode 7 through the plus-pole contacts 8a and 8b.
  • an electrical power of the battery 1 is supplied to the electric circuit 12 through the minus and plus electrodes 4 and 7.
  • the minus-pole contacts 5a and 5b have a different length from each other, the characteristic frequencies of the minus-pole contacts 5a and 5b are different from each other. Therefore, when an oscillation having a frequency resonating with respect to the characteristic frequency of the minus-pole contact 5a is ap­plied to the IC card 10, the minus-pole contact 5a will oscil­late and move away or depart from the minus pole 2 of the bat­tery 1. However, the minus-pole contact 5b will neither oscil­late nor depart from the minus pole 2 at this very frequency which is different from its characteristic frequency, so that the electric power of the battery 1 will be applied to the electric circuit 12 through the minus pole contact 5b.
  • the minus-pole contacts 5a and 5b are formed so as to have a different length from each other, the minus-pole contacts 5a and 5b may also be formed so as to have a different width from each other as shown in Fig. 5 or to have a different thickness from each other as shown in Fig. 6.
  • the number of the contacts may also be three or more. In a case where three or more contacts are formed at the electrode, at least two contacts out of these contacts may be formed so as to have a different shape from each other.
  • the present invention has been described with reference to an electrode construction of a battery in an IC card, it can be broadly employed to an electrode construction of a battery in an electrical equip­ment.

Landscapes

  • Battery Mounting, Suspending (AREA)
  • Credit Cards Or The Like (AREA)
  • Power Sources (AREA)
EP90105810A 1989-03-28 1990-03-27 Elektrodenkonstruktion für eine Batterie in einem elektrischen Gerät Expired - Lifetime EP0390070B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP77651/89 1989-03-28
JP1077651A JPH074996B2 (ja) 1989-03-28 1989-03-28 Ｉｃカード

Publications (3)

Publication Number Publication Date
EP0390070A2 true EP0390070A2 (de) 1990-10-03
EP0390070A3 EP0390070A3 (de) 1991-09-04
EP0390070B1 EP0390070B1 (de) 1994-11-30

Family

ID=13639794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105810A Expired - Lifetime EP0390070B1 (de) 1989-03-28 1990-03-27 Elektrodenkonstruktion für eine Batterie in einem elektrischen Gerät

Country Status (3)

Country Link
EP (1) EP0390070B1 (de)
JP (1) JPH074996B2 (de)
DE (1) DE69014370T2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1973202A1 (de) 2007-03-21 2008-09-24 Siemens Aktiengesellschaft Kontaktsystem mit mehrfacher Kontaktauflage
WO2014028266A1 (en) * 2012-08-15 2014-02-20 Tyco Electronics Corporation Electrical contact

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105023B2 (ja) * 1991-04-17 1995-11-13 松下電器産業株式会社 磁気ヘッドのギャップ位置調整方法
JPH0536559U (ja) * 1991-10-18 1993-05-18 三菱樹脂株式会社 メモリーカード
JP2010129433A (ja) * 2008-11-28 2010-06-10 Saxa Inc 電池の装填構造

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823285A1 (de) * 1978-05-27 1979-11-29 Preh Elektro Feinmechanik Einstellbarer drehwiderstand
DE2706760B2 (de) * 1977-02-17 1980-07-17 Novotechnik Kg Offterdinger Gmbh & Co, 7302 Ostfildern Beweglicher Abgriff
US4371595A (en) * 1980-12-19 1983-02-01 Canon Kabushiki Kaisha Battery containing mechanism of a compact electronic instrument
US4718742A (en) * 1984-09-29 1988-01-12 Kabushiki Kaisha Toshiba Battery fitting device usable for electronic appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635835Y2 (de) * 1975-10-21 1981-08-24
JPS548476U (de) * 1977-06-20 1979-01-20
JPS5810819B2 (ja) * 1977-07-12 1983-02-28 三洋電機株式会社 電池の電極接続装置
JPS60179982A (ja) * 1984-02-28 1985-09-13 Canon Inc 外部記憶用パツク

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706760B2 (de) * 1977-02-17 1980-07-17 Novotechnik Kg Offterdinger Gmbh & Co, 7302 Ostfildern Beweglicher Abgriff
DE2823285A1 (de) * 1978-05-27 1979-11-29 Preh Elektro Feinmechanik Einstellbarer drehwiderstand
US4371595A (en) * 1980-12-19 1983-02-01 Canon Kabushiki Kaisha Battery containing mechanism of a compact electronic instrument
US4718742A (en) * 1984-09-29 1988-01-12 Kabushiki Kaisha Toshiba Battery fitting device usable for electronic appliance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1973202A1 (de) 2007-03-21 2008-09-24 Siemens Aktiengesellschaft Kontaktsystem mit mehrfacher Kontaktauflage
CN101308967B (zh) * 2007-03-21 2012-06-06 西门子公司 具有多个接触支撑位置的接触系统
WO2014028266A1 (en) * 2012-08-15 2014-02-20 Tyco Electronics Corporation Electrical contact
US9033750B2 (en) 2012-08-15 2015-05-19 Tyco Electronics Corporation Electrical contact

Also Published As

Publication number Publication date
DE69014370D1 (de) 1995-01-12
JPH074996B2 (ja) 1995-01-25
EP0390070A3 (de) 1991-09-04
EP0390070B1 (de) 1994-11-30
DE69014370T2 (de) 1995-07-13
JPH02253999A (ja) 1990-10-12

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