KR200386700Y1 - an EL lamp sheet dome switch - Google Patents

an EL lamp sheet dome switch Download PDF

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Publication number
KR200386700Y1
KR200386700Y1 KR20-2005-0008198U KR20050008198U KR200386700Y1 KR 200386700 Y1 KR200386700 Y1 KR 200386700Y1 KR 20050008198 U KR20050008198 U KR 20050008198U KR 200386700 Y1 KR200386700 Y1 KR 200386700Y1
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KR
South Korea
Prior art keywords
dome
double
sided tape
elamp
switch
Prior art date
Application number
KR20-2005-0008198U
Other languages
Korean (ko)
Inventor
김태근
Original Assignee
주식회사 두성테크
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Priority to KR20-2005-0008198U priority Critical patent/KR200386700Y1/en
Application granted granted Critical
Publication of KR200386700Y1 publication Critical patent/KR200386700Y1/en

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Classifications

    • 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
    • H01H13/704—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 characterised by the layers, e.g. by their material or structure
    • 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
    • H01H13/83—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 legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/018—Electroluminescent panel

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  • Push-Button Switches (AREA)

Abstract

본 고안은 고정접점과 스위치접점이 형성되는 인쇄회로기판(PCB 또는 FPC)의 상부에 탄성돔을 설치하고, 그 상부에 이엘램프시트(Electro Luminescent Lamp Sheet)를 설치한 이엘램프시트 돔스위치에 관한 것으로, 종래의 이엘램프시트 돔스위치(20)는 탄성돔(22)의 상단면이 양면테이프(23)를 통해 이엘램프시트(24)와 접착되기 때문에 추운 환경에서 장시간 방치시 양면테이프(23)가 딱딱하게 굳게 되어 돔스위치 작동시에 클릭(Click)감이 좋지 못하게 되는 문제가 있었던 바,The present invention relates to an elamp sheet dome switch in which an elastic dome is installed on an upper portion of a printed circuit board (PCB or FPC) in which a fixed contact and a switch contact are formed, and an electro luminescent lamp sheet is installed on the upper portion of the printed circuit board. In the conventional elamp seat dome switch 20, the upper surface of the elastic dome 22 is bonded to the elamp seat 24 through the double-sided tape 23, so when left in a cold environment for a long time in the double-sided tape 23 Was hardened and the click feeling was not good when the dome switch was operated.

탄성돔(12)의 상부에 탑테이프(15)를 설치하고, 탑테이프(15)의 상부에 양면테이프(13)를 통해 이엘램프시트(14)를 접착 설치하되, 상기 양면테이프(13)의 탄성돔(12) 상부 부위에 결여부(13a)를 형성한 것을 특징으로 하는 본 고안에 의하면 돔스위치 작동시에 양면테이프(13)의 영향을 받지 않게 되므로 추운 환경에서 장시간 방치하여 양면테이프(13)가 딱딱하게 되더라도 돔스위치 작동시의 클릭감이 저하되지 않고 클릭감을 양호하게 유지할 수 있게 되며, 그에 따라 돔스위치 및 그를 사용하는 전자통신기기의 상품성을 크게 향상시킬 수 있게 되는 등의 효과를 얻을 수 있게 된다.The top tape 15 is installed on the upper portion of the elastic dome 12, and the elamp sheet 14 is attached to the top of the top tape 15 through the double-sided tape 13, and the double-sided tape 13 is According to the present invention characterized in that the lacking portion (13a) formed in the upper portion of the elastic dome (12) is not affected by the double-sided tape 13 during the operation of the dome switch, so it is left in a cold environment for a long time, the double-sided tape (13) Even if the) is hard, the click feeling at the time of the dome switch operation can be maintained without sacrificing the click feeling, and thus the effect of the dome switch and the electronic communication device using the same can be greatly improved. It becomes possible.

Description

이엘램프시트 돔스위치 { an EL lamp sheet dome switch }EL lamp sheet dome switch {an EL lamp sheet dome switch}

본 고안은 휴대폰 작동키나 그 밖의 전자제품 입력키에 주로 사용되는 돔스위치에 관한 것으로, 더 자세하게는 고정접점과 스위치접점이 형성되는 인쇄회로기판(PCB 또는 FPC)의 상부에 탄성돔을 설치하고, 그 상부에 이엘램프시트(Electro Luminescent Lamp Sheet)를 설치한 이엘램프시트 돔스위치에 관한 것이다.The present invention relates to a dome switch mainly used for mobile phone operation keys or other electronic product input keys, and more specifically, an elastic dome is installed on an upper portion of a printed circuit board (PCB or FPC) having a fixed contact and a switch contact. The present invention relates to an elamp seat dome switch provided with an electroluminescent lamp sheet thereon.

일반적으로 휴대폰 등의 전자통신기기의 입력장치에 사용되는 키패드는 야간에 키에 인쇄된 숫자나 문자를 인식시키기 위하여 LED 백라이트 방식을 사용하고 있으나, LED를 백라이트로 사용하는 경우 LED에서 발광되는 빛이 전면부에 위치한 키에 균일하게 전달되지 못하여 키에 인쇄된 숫자나 문자의 시인성이 저하되는 문제점이 있었다.Generally, keypad used for input device of electronic communication device such as mobile phone uses LED backlight method to recognize numbers or letters printed on keys at night, but when LED is used as backlight, light emitted from LED There was a problem that the visibility of the numbers or letters printed on the key is lowered because it is not uniformly transmitted to the key located in the front part.

이에 최근에는 이엘램프시트(Electro Luminescent Lamp Sheet)를 사용하여 키 전체면의 균일한 백라이팅을 할 수 있도록 이엘램프시트을 키패드의 백라이트로 사용하는 구조가 다수 제안(특허 제384993호, 특허 제417463호, 실용신안등록 제325934호, 실용신안등록 제325935호 등)되어 사용되고 있는 실정에 있다.Recently, a number of structures using the EL lamp sheet as a backlight of the keypad have been proposed to use the EL lamp sheet (Electro Luminescent Lamp Sheet) for uniform backlighting of the entire key surface (Patent 384993, Patent 417463, Utility Model Registration No. 325934, Utility Model Registration No. 325935, and the like.

종래에 있어서 상기 이엘램프시트를 사용하는 돔스위치는 도 1과 같이 표면에 한 쌍의 고정접점(21a)과 스위치접점(21b)이 마련되는 인쇄회로기판(21)의 상부에 하단 양측이 상기 인쇄회로기판(21)의 양 고정접점(21a)에 상시 접촉되고 융기된 상단부가 상기 스위치접점(21b)의 상부에 위치되는 도전성의 탄성돔(22)이 설치되며, 탄성돔(22)의 상부에 양면테이프(23)를 통해 이엘램프시트(24)가 부착 설치되고, 이엘램프시트(24)의 상부에 탑테이프(25)가 설치되는 것이 제안되었다.In the related art, the dome switch using the EL lamp sheet has a lower end on both sides of the printed circuit board 21 on which a pair of fixed contacts 21a and switch contacts 21b are provided on the surface as shown in FIG. 1. A conductive elastic dome 22 is installed, which is always in contact with both fixed contacts 21a of the circuit board 21 and the upper end of which is located above the switch contact 21b, and is installed on the upper portion of the elastic dome 22. It is proposed that the e-lamp sheet 24 is attached and installed through the double-sided tape 23, and the top tape 25 is installed on the upper portion of the e-lamp sheet 24.

상기 종래의 이엘램프시트 돔스위치(20)는 탑테이프(25)의 외부에서 탄성돔(22)의 볼록한 상단부를 가압하면 탄성돔(22)의 상단부가 오목하게 탄성 변형되면서 스위치접점(21b)에 접촉되어 ON 상태가 되고, 탄성돔(22)에 대한 작용력을 제거하면 오목하게 변형되었던 탄성돔(22)의 상단부가 다시 볼록하게 원상 복귀되면서 스위치접점(21b)으로부터 분리되어 OFF 상태가 되는 것인 바, 탄성돔(22)의 상단면이 양면테이프(23)를 통해 이엘램프시트(24)와 접착되기 때문에 추운 환경에서 장시간 방치하여 양면테이프(23)가 딱딱하게 굳게 되면 돔스위치 작동시에 클릭(Click)감이 저하되는 문제점이 있었다.When the conventional elamp seat dome switch 20 presses the convex upper end portion of the elastic dome 22 from the outside of the top tape 25, the upper end portion of the elastic dome 22 is concave elastically deformed to the switch contact point 21b. When the contact is in the ON state, when the action force on the elastic dome 22 is removed, the upper end of the concave deformed elastic dome 22 is convex and returned to its original shape, being separated from the switch contact point 21b to be in an OFF state. Bar, the upper surface of the elastic dome 22 is bonded to the elamp seat 24 through the double-sided tape 23, so when left in a cold environment for a long time and the double-sided tape 23 is hardened, click when dome switch operation There was a problem that (Click) feeling is reduced.

본 고안은 상기와 같은 종래의 이엘램프시트 돔스위치의 제결함을 감안하여 안출한 것이며, 그 목적이 추운 환경에서도 좋은 클릭감을 유지할 수 있도록 하는 이엘램프시트 돔스위치를 제공하는 데에 있는 것이다.The present invention has been devised in view of the above-mentioned defects of the conventional elamp sheet dome switch, and its object is to provide an elamp sheet dome switch that can maintain a good click feeling even in a cold environment.

본 고안은 상기의 목적을 달성하기 위하여 탄성돔의 상부에 접착제를 도포한폴리에틸렌테레프탈레이트(PET) 등의 내열성수지 재질의 탑테이프를 설치하여 돔을 부착하고, 탑테이프의 상부에 양면테이프를 통해 이엘램프시트를 설치하되 양면테이프의 탄성돔 상부 부위에 결여부를 형성하는 것을 특징으로 하며, 이하 그 구체적인 기술내용을 첨부도면에 의거하여 더욱 자세히 설명하면 다음과 같다.In order to achieve the above object, the present invention installs a top tape made of a heat resistant resin material such as polyethylene terephthalate (PET) coated with an adhesive on an upper portion of an elastic dome, and attaches a dome to the top tape. The installation of the elamp sheet, characterized in that the missing portion formed on the upper portion of the elastic dome of the double-sided tape, the following detailed description of the technical details based on the accompanying drawings.

즉, 도 2에는 본 고안의 한 실시예의 종단면도가 도시되어 있는 바, 본 고안은 표면에 한 쌍의 고정접점(11a)과 스위치접점(11b)이 마련되는 인쇄회로기판(11)의 상부에 하단 양측이 상기 인쇄회로기판(11)의 양 고정접점(11a)에 상시 접촉되고 융기된 상단부가 상기 스위치접점(11b)의 상부에 위치되는 도전성의 탄성돔(12)이 설치되며, 탄성돔(12)의 상부에 이엘램프시트(14)가 설치되는 이엘램프시트 돔스위치(10)를 구성함에 있어서, 상기 탄성돔(12)의 상부에 탑테이프(15)를 설치하고, 탑테이프(15)의 상부에 양면테이프(13)를 통해 이엘램프시트(14)를 접착 설치하되, 상기 양면테이프(13)의 탄성돔(12) 상부 부위에 결여부(13a)를 형성하여서 되는 것이다.That is, Figure 2 is a longitudinal cross-sectional view of an embodiment of the present invention, the present invention is a top of the printed circuit board 11 is provided with a pair of fixed contact (11a) and switch contact (11b) on the surface Conductive elastic dome 12 is installed on both sides of the lower end is always in contact with both of the fixed contact (11a) of the printed circuit board 11 and the raised upper end is located above the switch contact (11b), the elastic dome ( In the configuration of the elamp seat dome switch 10 in which the elamp seat 14 is installed on the upper part of 12, the top tape 15 is installed on the upper part of the elastic dome 12, and the top tape 15 is disposed. The elamp sheet 14 is attached to the upper portion of the double-sided tape 13 through the adhesive sheet, but the lacking portion 13a is formed in the upper portion of the elastic dome 12 of the double-sided tape 13.

도면부호중 미설명부호 16 및 26은 베이스테이프이다.Reference numerals 16 and 26 in the drawings denote baystripes.

상기와 같이 구성된 본 고안에 있어서는 이엘램프시트(14)의 외부에서 탄성돔(12)의 볼록한 상단부를 가압하면 이엘램프시트(14)가 양면테이프 결여부(13a)를 거쳐 탑테이프(15)를 가압하게 되고 탑테이프(15)가 탄성돔(12)을 가압하게 되므로 탄성돔(22)의 상단부가 오목하게 탄성 변형되면서 스위치접점(11b)에 접촉되어 ON 상태가 되고, 탄성돔(12)에 대한 작용력을 제거하면 오목하게 변형되었던 탄성돔(12)의 상단부가 다시 볼록하게 원상 복귀되면서 스위치접점(21b)으로부터 분리되어 OFF 상태가 되는 것인 바, 본 고안에 있어서는 추운 환경에서 장시간 방치하여 양면테이프(13)가 딱딱하게 굳게 되더라도 탄성돔(22)의 상부에는 양면테이프 결여부(13a)가 위치하기 때문에 돔스위치 작동시에 클릭(Click)감이 저하될 우려가 없게 된다.In the present invention configured as described above, when the convex upper end of the elastic dome 12 is pressed from the outside of the elamp sheet 14, the elamp sheet 14 passes through the top tape 15 through the double-sided tape missing portion 13a. Since the upper tape 15 pressurizes the elastic dome 12, the upper end of the elastic dome 22 is concave elastically deformed, and comes into contact with the switch contact 11b to be in an ON state. If the upper force of the concave deformed elastic dome 12 is removed again from the switch contact point 21b, the OFF state is removed. Even if the tape 13 is hardened, since the double-sided tape lacking portion 13a is positioned at the upper portion of the elastic dome 22, there is no fear that the click feeling is lowered when the dome switch is operated.

이상에서와 같이 본 고안은 탄성돔(12)의 상부에 탑테이프(15)를 설치하고, 탑테이프(15)의 상부에 양면테이프(13)를 통해 이엘램프시트(14)를 접착 설치하되, 상기 양면테이프(13)의 탄성돔(12) 상부 부위에 결여부(13a)를 형성한 것으로, 본 고안에 의하면 돔스위치 작동시에 양면테이프(13)의 영향을 받지 않게 되므로 추운 환경에서 장시간 방치되어 양면테이프(13)가 딱딱하게 되더라도 돔스위치 작동시의 클릭감을 양호하게 유지할 수 있게 되며, 그에 따라 돔스위치 및 그를 사용하는 전자통신기기의 상품성을 크게 향상 시킬 수 있게 되는 등의 효과를 얻을 수 있게 된다.As described above, the present invention installs the top tape 15 on the upper portion of the elastic dome 12, and installs the elamp sheet 14 through the double-sided tape 13 on the top of the top tape 15. The lacking portion 13a is formed in the upper portion of the elastic dome 12 of the double-sided tape 13, and according to the present invention, since the double-sided tape 13 is not affected by the dome switch operation, it is left for a long time in a cold environment. Therefore, even if the double-sided tape 13 is hardened, it is possible to maintain a good feeling of click when the dome switch is operated, thereby greatly improving the merchandise of the dome switch and the electronic communication device using the same. Will be.

도 1은 종래의 한 이엘램프시트 돔스위치의 종단면도1 is a longitudinal cross-sectional view of a conventional elamp seat dome switch;

도 2는 본 고안의 한 실시예의 종단면도Figure 2 is a longitudinal cross-sectional view of one embodiment of the present invention

< 도면의 주요부분에 대한 부호 설명 ><Explanation of Signs of Major Parts of Drawings>

10 : 이엘램프시트 돔스위치 11 : 인쇄회로기판10: EL lamp seat dome switch 11: printed circuit board

11a : 고정접점 11b : 스위치접점11a: fixed contact 11b: switch contact

12 : 탄성돔 13 : 양면테이프 12: elastic dome 13: double-sided tape

14 : 이엘램프시트 15 : 탑테이프14: EL Lamp Sheet 15: Top Tape

Claims (1)

표면에 한 쌍의 고정접점(11a)과 스위치접점(11b)이 마련되는 인쇄회로기판(11)의 상부에 하단 양측이 상기 인쇄회로기판(11)의 양 고정접점(11a)에 상시 접촉되고 융기된 상단부가 상기 스위치접점(11b)의 상부에 위치되는 도전성의 탄성돔(12)이 설치되며, 탄성돔(12)의 상부에 이엘램프시트(14)가 설치되는 것에 있어서, 상기 탄성돔(12)의 상부에 탑테이프(15)를 설치하고, 탑테이프(15)의 상부에 양면테이프(13)를 통해 이엘램프시트(14)를 접착 설치하되, 상기 양면테이프(13)의 탄성돔(12) 상부 부위에 결여부(13a)를 형성한 것을 특징으로 하는 이엘램프시트 돔스위치.On the upper surface of the printed circuit board 11 having a pair of fixed contacts 11a and a switch contact 11b on its surface, both sides of the lower end are always in contact with both fixed contacts 11a of the printed circuit board 11 and raised. In the upper end portion of the conductive elastic dome 12 is located above the switch contact (11b) is installed, the elamp seat 14 is installed on the upper portion of the elastic dome 12, the elastic dome 12 The top tape 15 is installed on the top of the top, and the elamp sheet 14 is attached to the top of the top tape 15 through the double-sided tape 13, but the elastic dome 12 of the double-sided tape 13 is installed. ) E-lamp seat dome switch, characterized in that the missing portion (13a) formed in the upper portion.
KR20-2005-0008198U 2005-03-25 2005-03-25 an EL lamp sheet dome switch KR200386700Y1 (en)

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KR20-2005-0008198U KR200386700Y1 (en) 2005-03-25 2005-03-25 an EL lamp sheet dome switch

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Application Number Priority Date Filing Date Title
KR20-2005-0008198U KR200386700Y1 (en) 2005-03-25 2005-03-25 an EL lamp sheet dome switch

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KR200386700Y1 true KR200386700Y1 (en) 2005-06-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100816439B1 (en) * 2006-07-25 2008-03-27 (주)삼영테크놀로지 apparatus for inputting key
KR101150302B1 (en) 2012-03-12 2012-06-08 최종구 Method for manufacturing reverse dome sheet
KR101504213B1 (en) 2008-11-25 2015-03-19 엘지전자 주식회사 Switch assembley and portable terminal having the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100816439B1 (en) * 2006-07-25 2008-03-27 (주)삼영테크놀로지 apparatus for inputting key
KR101504213B1 (en) 2008-11-25 2015-03-19 엘지전자 주식회사 Switch assembley and portable terminal having the same
KR101150302B1 (en) 2012-03-12 2012-06-08 최종구 Method for manufacturing reverse dome sheet

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