EP1605480A1 - Schaltermodul für Mobiltelefon - Google Patents

Schaltermodul für Mobiltelefon Download PDF

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Publication number
EP1605480A1
EP1605480A1 EP04019126A EP04019126A EP1605480A1 EP 1605480 A1 EP1605480 A1 EP 1605480A1 EP 04019126 A EP04019126 A EP 04019126A EP 04019126 A EP04019126 A EP 04019126A EP 1605480 A1 EP1605480 A1 EP 1605480A1
Authority
EP
European Patent Office
Prior art keywords
cellular phone
connection
switch module
pattern
pcb
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.)
Withdrawn
Application number
EP04019126A
Other languages
English (en)
French (fr)
Inventor
Bae Kyung Jeon
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1605480A1 publication Critical patent/EP1605480A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/807—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the spatial arrangement of the contact sites, e.g. superimposed sites
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/028—Switch site location perpendicular to base of keyboard

Definitions

  • the present invention relates to a switch module for a cellular phone that is controlled in such a manner that a side key installed in a lateral side of a cellular phone for thereby conveniently changing a volume mode or a function mode by an one-touch method is pressurized, and in particular to a switch module for a cellular phone in which a connection terminal contact part of a switch module contacting with a pattern formed in a PCB (Printed Circuit Board) installed in a cellular phone is elastically bent, for thereby increasing an inter-connection rate between a pattern of a PCB and a connection terminal, thus enhancing a reliability of a product.
  • PCB Print Circuit Board
  • a cellular phone includes a keypad having various functions so that a user can select a telephone mode or a function mode based on a user's selection.
  • a side key (a metal dome switch) is provided at a lateral side of a cellular phone, so that a user can easily change a certain function (such as volume control) among the multiple functions of the keypad based on a one-touch method.
  • the switch module for a conventional cellular phone includes a first connection terminal 5 that has a first connection part 4 downwardly extended below a first contact part 3 and is formed of a metal plate material wherein a first contact part 3 conductively contacting with a pattern 2 of a PCB 1 installed in a cellular phone is formed on an upper side of the same; and a second connection terminal 8 that has a second connection part 7 downwardly extended below a second contact part 6 and is symmetrically formed at both sides wherein a second contact part 6 is bent in the same direction as the first contact part 3 so as to conductively contact with a pattern 2 of the PCB 1.
  • the conventional switch module includes a body 10 that has a receiving groove 9 at both sides for receiving first and second connection parts 4 and 7 of the first and second connection terminals 5 and 8 wherein the first and second contact parts 3 and 6 of the first and second connection terminals 5 and 8 are molded and protruded from the upper side of the same; and a streamline shaped metal dome 11 that is engaged to the receiving groove 9 so that an edge portion is connected with the second connection part 7, wherein the metal dome 11 is elastically transformed when a user of a cellular phone pressurizes a center portion of the same for thereby electrically connecting the first and second connection parts 4 and 7.
  • the first and second contact parts 3 and 6 of the first and second connection terminals 5 and 8 always keep being contacted with respect to the pattern 2 of the PCB 1.
  • the first and second contact parts 3 and 6 are formed in a circular shape and are simply overlapped on the upper surface of the pattern 2.
  • the pattern 2 and the first and second contact parts 3 and 6 may be disconnected, so that the PCB 1 and the first and second connection terminals 5 and 8 are elastically disconnected. Therefore, the user may forcibly apply an over pressure to the side key installed at the lateral side of the cellular phone, so that a corresponding element may be damaged.
  • an improved switch module for a cellular phone comprising a first connection terminal that is bent with a certain elastic force in a direction that an end portion of a first contact part contacting with a pattern of the PCB pressurizes the pattern and that has a first connection part downwardly extended below the first contact part; a second connection terminal that is bent with a certain elastic force in a direction that an end portion of a second contact part contacting with a pattern of the PCB pressurizes the pattern and that has a second connection part that downwardly extended below the second contact part and symmetrically formed at the left and right sides; a body in which the first and second connection terminals are insert-molded so that the first and second contact parts are upwardly protruded, wherein a receiving groove is formed
  • FIGS 3 through 6 are perspective views according to an embodiment of the present invention.
  • the device according to the present invention is installed in a lateral side of a PCB (Printed Circuit Board) installed in the interior of a cellular phone and is adapted to a switch module controlled based on a push of a side key exposed on a lateral surface of a cellular phone.
  • PCB Print Circuit Board
  • the switch module for a cellular phone includes a first connection terminal 5 that is bent and has an elastic force in a direction that an end portion of a first contact part 3 pressurizes a pattern 2 so that the first connection terminal 5 always contacts with the pattern 2 of a PCB (Printed Circuit Board) 1 and that has a first connection part 4 downwardly extended at an angle of about 90° with respect to the first contact part 3 wherein the first connection terminal 5 is formed of a metal conductive plate; and a second connection terminal 8 that is bent and has an elastic force in a direction that an end portion of a second contact part 6 pressurizes the pattern so that the second connection terminal 8 always contacts with the pattern 2 and that has a second connection part 7 downwardly extending at an angle of about 90° with respect to the second contact part 6 and is symmetrically formed at both sides.
  • a first connection terminal 5 that is bent and has an elastic force in a direction that an end portion of a first contact part 3 pressurizes a pattern 2 so that the first connection terminal 5 always contacts with the pattern 2
  • the first and second connection terminals 5 and 8 are insert-molded so that the first and second contact parts 3 and 6 are upwardly protruded.
  • a body 10 having a rectangular receiving groove 9 at left and right sides wherein the first and second connection parts 4 and 7 are received therein, respectively.
  • a plate shaped conductive and elastic metal dome 11 that corresponds to the shape of the receiving groove 9 so that an edge portion of the same always contacts with the second connection part 7 and is engaged to the receiving groove 9 (at this time, the center portion is distanced from the first connection part 4), wherein the metal dome 11 electrically connects the first and second connection parts 4 and 7 based on a connection with the first connection part 4 when the user pressurizes the center portion of the same and is pressed (elastic transformation).
  • the switch module is installed in a lateral side of the PCB 1 installed in the interior of the cellular phone
  • the first and second contact parts 3 and 6 of the first and second connection terminals 5 and 8 are protruded from the upper surface of the body 10 so that the switch module does not interfere with the neighboring parts, and the size of the body of the cellular phone is decreased in maximum.
  • the center of the metal dome 11 is pressurized when an external force is applied thereto by the user, the center portion of the same is pushed (shown by the imaginary line in Figure 6) and contacts with the first connection part 4, so that the second connection part 7 of the second connection terminal 8 positioned at the edge of the receiving groove 9 is electrically connected with the first connection part 4 of the first connection terminal 5 positioned at the center of the receiving groove 9.
  • the ends of the first and second contact parts 3 and 6 are bent and have an elastic force in a direction that the ends of the same pressurize the pattern 2. Therefore, even when a certain external impact is applied to the cellular phone by a user's mistake or the bent portion is slightly recovered and transformed due to the characteristics of the materials of the first and second connection terminals 5 and 8, the first and second contact parts 3 and 6 keep the state contacted with the pattern 2.
  • the metal dome 11 In the case that the external force applied to the metal dome 11 is removed, the metal dome 11 returns to its original state by an elastic recovery force (at this time, the edges of the metal dome 11 keep the initial state connected with the second connection part 7 of the second connection terminal 8), and the center of the metal dome 11 is separated from the first connection part 4 of the first connection terminal 5, so that the first connection part 4 of the first connection terminal 5 is elastically disconnected from the second connection part 7 of the second connection terminal 8.
  • Figure 7 is a perspective view of another embodiment of the present invention. As shown therein, there is provided a switch module for a cellular phone having three side keys 12 installed at a lateral side of the cellular phone. Three metal domes 11 corresponding to three side keys 12 are provided in the body 10. The construction of Figure 7 is similar with the constructions of Figures 3 through 6. Therefore, the detailed descriptions thereon will be described.
  • Figure 8 is a view of further another embodiment of the present invention.
  • a switch module for a cellular phone having one side key 12 installed at a lateral side of the cellular phone.
  • One metal dome 11 corresponding to one side key 12 is provided in the body 10.
  • Figure 8 since the construction of Figure 8 is similar with the constructions of Figures 3 through 6, the detailed descriptions thereon will be omitted.
  • an inter-connection rate between a pattern and a connection terminal is enhanced in such a manner that a contact part of a connection terminal of a switch module contacting with a pattern of a PCB installed in the interior of a cellular phone is bent and has a certain elastic force, so that it is possible to enhance a reliability of a product.
  • connection terminal of a switch module since a connection terminal of a switch module always keeps an electrically connected state with respect to a pattern of a PCB, it is possible to prevent a user from over-pressing a side key installed at a lateral side of a cellular phone, so that the life span of a corresponding part is significantly enhanced.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)
EP04019126A 2004-06-07 2004-08-12 Schaltermodul für Mobiltelefon Withdrawn EP1605480A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2004015873 2004-06-07
KR20040015873 2004-06-07

Publications (1)

Publication Number Publication Date
EP1605480A1 true EP1605480A1 (de) 2005-12-14

Family

ID=34926140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04019126A Withdrawn EP1605480A1 (de) 2004-06-07 2004-08-12 Schaltermodul für Mobiltelefon

Country Status (1)

Country Link
EP (1) EP1605480A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2194550A1 (de) * 2008-12-08 2010-06-09 Hanbit Precision Co., Ltd. Seitliches Schlüsselmodul für ein mobiles Kommunikationsendgerät
CN101441951B (zh) * 2007-11-20 2011-11-16 深圳富泰宏精密工业有限公司 电子装置的按键结构
EP2819138A1 (de) * 2012-02-23 2014-12-31 Citizen Electronics Co., Ltd Drucktastenschalter
CN108666154A (zh) * 2017-03-29 2018-10-16 硬蛋科技（北京）有限公司 手持式电子设备及其控制组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917167A1 (de) * 1997-07-23 1999-05-19 Molex Incorporated Elektrischer Schalter und Schaltungsanordnung
US6148183A (en) * 1997-12-31 2000-11-14 Motorola, Inc. Switch assembly for an electronic device
EP1087416A1 (de) * 1999-09-22 2001-03-28 Molex Incorporated Elektrischer Schalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0917167A1 (de) * 1997-07-23 1999-05-19 Molex Incorporated Elektrischer Schalter und Schaltungsanordnung
US6148183A (en) * 1997-12-31 2000-11-14 Motorola, Inc. Switch assembly for an electronic device
EP1087416A1 (de) * 1999-09-22 2001-03-28 Molex Incorporated Elektrischer Schalter

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101441951B (zh) * 2007-11-20 2011-11-16 深圳富泰宏精密工业有限公司 电子装置的按键结构
EP2194550A1 (de) * 2008-12-08 2010-06-09 Hanbit Precision Co., Ltd. Seitliches Schlüsselmodul für ein mobiles Kommunikationsendgerät
JP2010136366A (ja) * 2008-12-08 2010-06-17 Hanbit Precision Co Ltd 移動通信端末機のサイドキーモジュール
EP2819138A1 (de) * 2012-02-23 2014-12-31 Citizen Electronics Co., Ltd Drucktastenschalter
EP2819138A4 (de) * 2012-02-23 2015-11-11 Citizen Electronics Drucktastenschalter
US9672998B2 (en) 2012-02-23 2017-06-06 Citizen Watch Co., Ltd. Push switch
EP3196910A1 (de) * 2012-02-23 2017-07-26 Citizen Electronics Co., Ltd. Drucktastenschalter
EP3196909A1 (de) * 2012-02-23 2017-07-26 Citizen Electronics Co., Ltd. Drucktastenschalter
CN108666154A (zh) * 2017-03-29 2018-10-16 硬蛋科技（北京）有限公司 手持式电子设备及其控制组件

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