KR20040006616A - Waterproof device of SIM card groove in Mobile Phone - Google Patents

Waterproof device of SIM card groove in Mobile Phone Download PDF

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Publication number
KR20040006616A
KR20040006616A KR1020020040940A KR20020040940A KR20040006616A KR 20040006616 A KR20040006616 A KR 20040006616A KR 1020020040940 A KR1020020040940 A KR 1020020040940A KR 20020040940 A KR20020040940 A KR 20020040940A KR 20040006616 A KR20040006616 A KR 20040006616A
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KR
South Korea
Prior art keywords
sim card
mounting groove
card mounting
fastening
cover
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Application number
KR1020020040940A
Other languages
Korean (ko)
Inventor
모찬용
Original Assignee
엘지전자 주식회사
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Publication date
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Priority to KR1020020040940A priority Critical patent/KR20040006616A/en
Publication of KR20040006616A publication Critical patent/KR20040006616A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3816—Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • 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
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE: A waterproof device for a SIM(Subscriber Identity Module) card mounting groove in a mobile communication terminal is provided to prevent that a SIM card mounted in the SIM card mounting groove is damaged by moisture by covering an upper side portion of the SIM card mounting groove by a cover. CONSTITUTION: A connection groove(104) is formed in a uniform interval in an external circumference of a SIM card mounting groove(102) formed in a rear surface of a terminal case(100). A plurality of connection holes(105) are formed at one side of the connection groove(104) in a uniform interval. A cover(110) covers the SIM card mounting groove(102) and a part of the rear surface adjacent with the SIM card mounting groove(102). The cover(110) has a connection asperity(107) and a fixed protrusion(109) in a lower portion of the cover(110). A front end of the connection asperity(107) is compressed and penetrated in a connection protrusion(106) and the connection holes(105). The fixed protrusion(109) presses and fixes a SIM card(103) mounted in the SIM card mounting groove(102).

Description

이동통신 단말기의 심카드 장착홈 방수장치{Waterproof device of SIM card groove in Mobile Phone}Waterproof device of SIM card groove in Mobile Phone

본 발명은 이동통신 단말기의 심카드 장착홈의 개방된 상측부를 통하여 외부에서 수분이 유입되지 않도록 상기 심카드 장착홈을 커버하여 그 안에 장착된 심카드를 보호하는 이동통신 단말기의 심카드 장착홈 방수장치에 관한 것이다.The present invention covers the SIM card mounting groove to protect the SIM card mounted therein so as to protect the SIM card mounted therein so that moisture does not flow from the outside through the open upper side of the SIM card mounting groove of the mobile communication terminal. Relates to a device.

일반적으로 이동통신 단말기의 이용방식 중에서 현재 유럽 쪽에서 상용화되고 있는 이용방식은 시분할 다중접속방식인 GSM(Global System for Mobile Communication; 이하 GSM이라 약칭)방식이다.In general, among the usage methods of the mobile communication terminal, currently used in Europe, the GSM (Global System for Mobile Communication) is a time division multiple access method.

이러한 GSM 방식에 사용되는 이동통신 단말기는 심(Subscriber Identity Module ; SIM)카드를 사용하고 있는데, 심카드는 마이크로 프로세서와 메모리칩이 자체적으로 장착되어 단말기를 작동하는데 필요한 거의 모든 정보를 내장하고 있으며, 특히 암호등 사용자의 개인정보뿐만 아니라 전화번호, 네트워크번호 등의 관련정보 등을 포함하는 데이터가 내장되어 있다.The mobile communication terminal used in the GSM method uses a SIM (Subscriber Identity Module; SIM) card. The SIM card includes almost all information necessary for operating the terminal by being equipped with a microprocessor and a memory chip. In particular, data is embedded that includes not only user's personal information such as passwords, but also relevant information such as phone numbers and network numbers.

따라서, GSM 방식의 단말기는 심카드에 의해 가입자 인증을 받아야만 통화를 할 수 있다. 만일, 심카드가 없다면 긴급 호(Emergency Call)를 제외하고는 전화를 할 수 없다.Therefore, the GSM terminal can make a call only after receiving subscriber authentication by SIM card. If you do not have a SIM card, you cannot call except Emergency Calls.

또한, 상기 심카드는 사용자가 네트워크에 등록이 되어 있는지도 조사하며 네트워크에 등록되어 있지 않은 사용자의 사용을 막기 위해서 개인인증번호(Personal Identification Number: PIN)와 개인 차단해제 키(Personal Unblocking Key: PUK)를 저장하고 있고, 상기 PIN과 PUK에 의한 보호(Security) 기능을 수행한다. 그러므로 사용자는 네 자리의 수를 입력해야만 사용할 수 있다. 만약 잘못된 PIN을 세번 이상 입력하면 심카드는 차단되고, 이를 해제하려면 여덟 자리의 PUK를 입력해야 하는 구조이다.In addition, the SIM card checks whether the user is registered in the network, and in order to prevent the use of a user who is not registered in the network, a personal identification number (PIN) and a personal unblocking key (PUK). It stores and performs a security (Security) function by the PIN and PUK. Therefore, the user must enter a four-digit number to use it. If you enter the wrong PIN more than three times, the SIM card is blocked, and you need to enter an eight-digit PUK to unlock it.

이러한 심카드를 이동통신 단말기에 접속시키기 위해서는 도 1에 도시한 바와같이 단말기 케이스(10)의 배면(11)으로 심카드 장착홈(12)를 형성하고, 상기 심카드 장착홈(12)에 심카드(20)를 삽착한 후 배터리 팩(30)을 단말기 케이스(10)의 배면(11)에 장착하므로서 심카드(20)의 장착이 완료되었다.In order to connect the SIM card to the mobile communication terminal, a SIM card mounting groove 12 is formed on the rear surface 11 of the terminal case 10, as shown in FIG. After the card 20 was inserted, the mounting of the SIM card 20 was completed by mounting the battery pack 30 to the rear surface 11 of the terminal case 10.

그러나 상기 심카드 장착홈(12)은 상측면이 개방된 상태이므로, 단말기 케이스(10)의 배면(11)에 배터리 팩(30)을 장착한 상태 및 분리한 상태에서 외부로 부터 수분 또는 이물질이 쉽게 유입되어 심카드(20)가 훼손되는 문제점이 있었다.However, since the upper surface of the SIM card mounting groove 12 is open, the battery pack 30 is mounted on the rear surface 11 of the terminal case 10 and separated from water or foreign matter from the outside. There is a problem in that the sim card 20 is easily introduced to be damaged.

따라서, 본 발명은 이와같은 점을 감안하여 안출한 것으로서, 심카드를 장착하도록 단말기의 케이스 배면에 형성된 심카드 장착홈의 개방된 상측부를 통하여 외부에서 수분이 유입되지 않도록 상기 심카드 장착홈의 상측부를 덮개로 커버하여 그 안에 장착된 심카드가 수분에 의하여 훼손됨을 방지하는 것을 목적으로 한다.Accordingly, the present invention has been made in view of the above, the upper side of the SIM card mounting groove so that moisture does not flow from the outside through the open upper side of the SIM card mounting groove formed on the case back of the terminal to mount the SIM card It is intended to cover the part with a cover to prevent the SIM card mounted therein from being damaged by moisture.

이와같은 목적을 달성하기 위하여 본 발명은 심카드 장착홈이 형성된 단말기 케이스의 배면에 상기 심카드 장착홈의 외측 둘레에 일정간격을 두고 형성하는 체결홈 및 상기 체결홈의 일측으로 일정간격을 두고 형성하는 다수의 체결공과, 상기 심카드 장착홈과 그와 인접한 배면의 일부를 커버하되 하부면에 상기 체결홈에 압입되는 체결돌부 및 상기 체결공에 그 선단이 압통되는 체결돌기와 상기 심카드 장착홈에 심카드를 압착고정하는 고정돌기를 구비하는 덮개로 이루어지는 이동통신 단말기의 심카드 장착홈의 방수장치를 제공한다.In order to achieve the above object, the present invention is formed with a predetermined interval toward one side of the fastening groove and the fastening groove formed at a predetermined interval on the outer circumference of the sim card mounting groove on the back of the terminal case formed with a sim card mounting groove. Covers a plurality of fastening holes, the SIM card mounting groove and a portion of the rear surface adjacent to the fastening protrusion which is pushed into the fastening groove on the lower surface and the fastening projection and the fastening end of the fastening hole in the fastening hole and the SIM card mounting groove Provided is a waterproof device for a SIM card mounting groove of a mobile communication terminal including a cover having a fixing protrusion for crimping and fixing the SIM card.

도 1은 일반적인 이동통신 단말기의 심카드 장착구조를 나타낸 사시도.1 is a perspective view showing a SIM card mounting structure of a general mobile communication terminal.

도 2는 본 발명의 구성을 나타내는 사시도.2 is a perspective view showing a configuration of the present invention.

도 3은 도 2의 A-A'단면도.3 is a cross-sectional view taken along line AA ′ of FIG. 2;

도 4는 도 2의 B-B'단면도.4 is a cross-sectional view taken along line B-B 'of FIG.

도 5는 본 발명에 다른 심카드 장착홈 방수장치의 결합상태를 나타내는 평면도.Figure 5 is a plan view showing a coupled state of another SIM card mounting groove waterproofing device in the present invention.

도 6는 도 5의 C-C' 단면도.6 is a cross-sectional view taken along line C-C 'of FIG.

***도면의 주요부분에 대한 부호의 간단한 설명****** Brief description of symbols for main parts of drawings ***

100 : 단말기 케이스 101 : 배면100: terminal case 101: back

102 : 심카드 장착홈 103 : 심카드(SIM CARD)102: SIM card mounting groove 103: SIM card

104 : 체결홈 105 : 체결공104: fastening groove 105: fastening hole

106 : 체결돌부 107 : 체결돌기106: fastening protrusion 107: fastening protrusion

107' : 단턱부 108 : 리브(LIB)107 ': stepped portion 108: rib (LIB)

109 : 고정돌기 110 : 덮개109: fixing protrusion 110: cover

본 발명의 구성 및 실시예를 첨부된 도 2,3,4,5,6을 참조하여 상세하게 살펴보면 다음과같다.Referring to the configuration and the embodiment of the present invention with reference to Figures 2, 3, 4, 5, 6 as follows.

도 2는 본 발명의 구성을 나타내는 사시도이고, 도 3은 도 2의 A-A'단면도이고, 도 4는 도 2의 B-B'단면도이고, 도 5는 본 발명에 다른 심카드 장착홈 방수장치의 결합상태를 나타내는 평면도이고, 도 6는 도 5의 C-C' 단면도.도 2는 본 발명의 구성을 나타내는 평면도이다.Figure 2 is a perspective view showing the configuration of the present invention, Figure 3 is a cross-sectional view taken along line AA 'of Figure 2, Figure 4 is a cross-sectional view taken along line B-B' of Figure 2, Figure 5 is another SIM card mounting groove waterproofing Fig. 6 is a sectional view taken along line CC ′ of Fig. 5. Fig. 2 is a plan view showing the arrangement of the present invention.

본 발명은 도 2,3,4에 도시한 바와같이 심카드 장착홈(102)이 형성된 단말기 케이스(100)의 배면(101)에 상기 심카드 장착홈(102)의 외측 둘레에 일정간격을 두고 형성하는 체결홈(104) 및 상기 체결홈(104)의 일측으로 일정간격을 두고 형성하는 다수의 체결공(105)과, 상기 심카드 장착홈(102)과 그와 인접한 배면(101)의 일부를 커버하되 하부면에 상기 체결홈(104)에 압입되는 체결돌부(106) 및 상기 체결공(105)에 그 선단이 압통되는 체결돌기(107)와 상기 심카드 장착홈(102)에 장착된 심카드(103)를 압착고정하는 고정돌부(109)를 구비하는 덮개(110)로 구성된다.2, 3, and 4 the predetermined distance around the outer circumference of the SIM card mounting groove 102 on the back 101 of the terminal case 100, the SIM card mounting groove 102 is formed as shown in FIG. The fastening groove 104 to be formed and a plurality of fastening holes 105 formed at a predetermined distance to one side of the fastening groove 104, the SIM card mounting groove 102 and a portion of the rear surface 101 adjacent thereto Cover the bottom surface is mounted on the fastening protrusion 106 and the fastening protrusion 107 is pressed to the fastening groove 104 and the fastening hole 105 and the sim card mounting groove 102 on the tip of the fastening hole 105 The cover 110 is provided with a fixing protrusion 109 for crimping and fixing the SIM card 103.

상기 덮개(110)는 유연성이 풍부한 고무재질로 형성한다.The cover 110 is formed of a rubber material rich in flexibility.

상기 덮개(110)는 체결돌부(106)의 일측으로 일정 크기의 리브(108)를 돌출성형하고 그 하부면에 체결돌기(107)를 형성한다.The cover 110 protrudes the rib 108 of a predetermined size to one side of the fastening protrusion 106 and forms a fastening protrusion 107 on the lower surface thereof.

또한, 상기 체결돌기(107)의 선단은 삽통되는 체결공(105)의 후단에 걸리도록 단턱부(107')로 형성한다.(도 6참조)In addition, the front end of the fastening protrusion 107 is formed by the stepped portion 107 'so as to be caught by the rear end of the fastening hole 105 is inserted (see Fig. 6).

이와같이 구성된 본 발명의 올바른 실시예를 살펴보면 도 5,6에 도시한 바와같이 케이스(100)의 배면(101)에 형성된 심카드 장착홈(102)에 심카드(103)를 장착하고, 이후 상기 심카드 장착홈(102)이 커버되도록 케이스(100)의 배면(101)에 덮개(110)를 장착한다.Looking at the correct embodiment of the present invention configured as described above, as shown in Figures 5 and 6 to mount the SIM card 103 in the SIM card mounting groove 102 formed in the back 101 of the case 100, and then the shim The cover 110 is mounted on the back 101 of the case 100 so that the card mounting groove 102 is covered.

이때, 상기 덮개(110)는 도 6에 도시한 바와같이 체결홈(104)에 체결돌부(106)를 압입하고 또한 체결공(105)에 그 선단의 단턱부(107')가 삽통되도록 체결돌기(107)를 압입하므로써, 상기 심카드 장착홈(102)으로 수분이 유입되지 않도록 심카드 장착홈(102)을 커버한 상태로 케이스(100)의 배면(101)에 고정장착된다.At this time, the cover 110 press-fits the fastening protrusion 106 into the fastening groove 104, as shown in Figure 6 and also fastening projections so that the stepped portion 107 'of the tip is inserted into the fastening hole 105. By press-fitting 107, the SIM card mounting groove 102 is fixedly mounted on the back 101 of the case 100 while covering the SIM card mounting groove 102 so that moisture does not flow into the SIM card mounting groove 102.

이를 좀더 자세하게 설명하면, 상기 케이스(100)의 배면(101)에 장착된 덮개(110)는 심카드 장착홈(102)의 개방된 상측 및 그 주변을 커버한 상태이며, 이와같은 상태에서 상기 체결홈(104)은 체결돌부(106)가 압입되어 완전히 메꾼 상태이므로 그 상태에서는 상기 체결홈(104)과 체결돌부(106) 사이에는 틈이 없게된다.In more detail, the cover 110 mounted on the back 101 of the case 100 is in a state covering the open upper side and the periphery of the SIM card mounting groove 102, and the fastening in such a state. The groove 104 is a state in which the fastening protrusion 106 is press-fitted and completely filled, so there is no gap between the fastening groove 104 and the fastening protrusion 106.

따라서, 심카드 장착홈(102)의 개방된 상측 및 상기 체결돌부(106)가 형성된 덮개(110)의 하부면과 케이스(100)의 배면(101) 사이를 통하여 수분이 상기 심카드 장착홈(102)으로 유입되지 못하게된다.Accordingly, moisture is transferred between the open upper side of the SIM card mounting groove 102 and the lower surface of the cover 110 on which the fastening protrusion 106 is formed and the back surface 101 of the case 100. 102) can not be entered.

또한, 이와같은 원리로 상기 체결공(105)을 통하여 케이스(100)내로 수분이 유입되지 못하게되며, 더불어서 상기 체결공(105)의 하단에 체결돌기(107)의 단턱부(107')가 걸려 있으므로써, 이후로는 상기 덮개(110)는 체결돌부(106)만을 체결홈(104)에서 착탈하여 심카드 장착홈(102)을 개폐한다.In addition, moisture is prevented from flowing into the case 100 through the fastening hole 105, and in addition, the stepped portion 107 ′ of the fastening protrusion 107 is caught at the bottom of the fastening hole 105. Therefore, the cover 110 thereafter opens and closes the sim card mounting groove 102 by detaching only the fastening protrusion 106 from the fastening groove 104.

다시말해서, 리브(108)가 케이스(100)의 배면(101)에 체결된 상태에서 상기 덮개(110)는 체결돌부(106)만을 체결홈(104)에서 착탈하여 심카드 장착홈(102)을 개폐하게되는 것이다.In other words, in the state where the rib 108 is fastened to the back 101 of the case 100, the cover 110 detaches only the fastening protrusion 106 from the fastening groove 104 to remove the SIM card mounting groove 102. Will be opened and closed.

그리고 상기한 바와같이 덮개(110)가 케이스(100)의 배면(101)에 고정장착된 상태에 상기 덮개(110)의 고정돌부(109)가 심카드 장착홈(102)에 장착된 심카드(103)의 상부면에 압착되므로써, 상기 심카드(103)가 외력에 의하여 심카드 장착홈(102) 내에서 유동되지 않도록 한다.In addition, as described above, the SIM card having the fixing protrusion 109 of the cover 110 mounted on the SIM card mounting groove 102 in a state in which the cover 110 is fixedly mounted on the rear surface 101 of the case 100 ( By pressing the upper surface of the 103, the SIM card 103 is prevented from flowing in the SIM card mounting groove 102 by the external force.

이상에서 살펴본 바와같이 본 발명은 심카드 장착홈의 개방된 상측부를 커버하는 덮개를 구비하므로써, 심카드 장착홈으로 수분 및 이물질이 유입되는 것을 방지하여 그 안에 장착된 심카드를 보호하는 효과가 있다.As described above, the present invention has an effect of protecting the SIM card mounted therein by preventing water and foreign matter from entering the SIM card mounting groove by providing a cover covering the open upper side of the SIM card mounting groove. .

또한, 외력으로부터 상기 심카드 장착홈 내에서 심카드가 유동되는 것을 방지하므로써, 상기 심카드의 접속부와 심카드 커넥트핀(미도시)의 접속상태를 안정적으로 유지할 수 있도록 하는 효과가 있다.In addition, by preventing the SIM card from flowing in the SIM card mounting groove from the external force, there is an effect that it is possible to stably maintain the connection state of the connecting portion of the SIM card and the SIM card connect pin (not shown).

Claims (4)

심카드 장착홈이 형성된 단말기 케이스의 배면에 상기 심카드 장착홈의 외측 둘레에 일정간격을 두고 형성하는 체결홈 및 상기 체결홈의 일측으로 일정간격을 두고 형성하는 다수의 체결공과,A plurality of fastening grooves formed at a predetermined interval toward one side of the fastening grooves and at least one side of the fastening grooves formed on the outer circumference of the sim card mounting grooves on the back of the terminal case in which the SIM card mounting grooves are formed; 상기 심카드 장착홈과 그와 인접한 배면의 일부를 커버하되 하부면에 상기 체결홈에 압입되는 체결돌부 및 상기 체결공에 그 선단이 압통되는 체결돌기와 상기 심카드 장착홈에 심카드를 압착고정하는 고정돌기를 구비하는 덮개로 이루어지는 것을 특징으로 하는 이동통신 단말기의 심카드 장착홈 방수장치.Covers the SIM card mounting groove and a part of the rear surface adjacent thereto, and clamps and fixes the SIM card in the SIM card mounting groove and a locking protrusion which is pressed into the coupling groove on the lower surface, and a fastening protrusion whose tip is pressed into the coupling hole. Sim card mounting groove waterproofing device of a mobile communication terminal, characterized in that consisting of a cover having a fixing projection. 제 1 항에 있어서,The method of claim 1, 상기 덮개는 체결돌부의 일측으로 일정 크기의 리브를 돌출성형하고 그 하부면에 체결돌기를 형성하는 것을 특징으로 하는 이동통신 단말기의 심카드 장착홈 방수장치.The cover is waterproof to the SIM card mounting groove of the mobile communication terminal, characterized in that for forming a rib having a predetermined size to one side of the fastening protrusion and forming a fastening protrusion on the lower surface. 제 1 항 또한 제 2 항에 있어서,The method according to claim 1 or 2, 상기 덮개는 유연성이 풍부한 고무재질로 형성하는 것을 특징으로 하는 이동통신 단말기의 심카드 장착홈 방수장치.The cover is a SIM card mounting groove waterproofing device of a mobile communication terminal, characterized in that formed of a flexible rubber material. 제 1 항 또한 제 2 항에 있어서,The method according to claim 1 or 2, 상기 체결돌기의 선단은 삽통되는 체결공의 후단에 걸리도록 단턱부로 형성하는 것을 특징으로 하는 이동통신 단말기의 심카드 장착홈 방수장치.The front end of the fastening protrusion is a SIM card mounting groove waterproofing device of the mobile communication terminal, characterized in that formed as a stepped portion to be caught to the rear end of the fastening hole is inserted.
KR1020020040940A 2002-07-13 2002-07-13 Waterproof device of SIM card groove in Mobile Phone KR20040006616A (en)

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