KR890004673B1 - Shield case of tuner - Google Patents

Shield case of tuner Download PDF

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Publication number
KR890004673B1
KR890004673B1 KR1019840000392A KR840000392A KR890004673B1 KR 890004673 B1 KR890004673 B1 KR 890004673B1 KR 1019840000392 A KR1019840000392 A KR 1019840000392A KR 840000392 A KR840000392 A KR 840000392A KR 890004673 B1 KR890004673 B1 KR 890004673B1
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KR
South Korea
Prior art keywords
partition plate
shield case
circuit board
tuner
soldering
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Application number
KR1019840000392A
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Korean (ko)
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KR840008094A (en
Inventor
도요미 요네마루
Original Assignee
샤아프 가부시기가이샤
사에끼 아끼라
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Publication of KR840008094A publication Critical patent/KR840008094A/en
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Publication of KR890004673B1 publication Critical patent/KR890004673B1/en

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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

내용 없음.No content.

Description

튜너의 실드 케이스Tuner's Shield Case

제1도는 종래의 실드 케이스의 사시도.1 is a perspective view of a conventional shield case.

제2도는 동실드 케이스의 제1도 A-A'선에 있어서의 단면도.2 is a cross-sectional view taken along line A-A 'of FIG. 1 of the copper shield case.

제3도는 본 발명의 실드 케이스의 1실시예를 표시하는 단면도.3 is a cross-sectional view showing one embodiment of the shield case of the present invention.

제4도는 동실드 케이스의 또 다른 실시예를 표시하는 단면도.4 is a sectional view showing yet another embodiment of the copper shield case.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 회로기판 1a : 투공1: Circuit board 1a: Perforation

1b : 접지패턴 2 : 겉틀1b: Ground pattern 2: Outer frame

3 : 칸막이판 3a : 고정각3: partition plate 3a: fixed angle

3b : 지지각 4 : 뚜껑3b: support angle 4: lid

5 : 땜납5: solder

본 발명은 튜너의 실드케이스의 개량에 관한 것이다.The present invention relates to an improvement of the shield case of a tuner.

종래부터 텔레비젼 수상기나 라디오 수신기의 튜너동조회로 및 국부발진회로는 , 외부자기나 전자파부터 회로신호를 보호함과 동시에 자생하는 고주파전파가 외부에 누설되는 일이 없도록 실드케이스내에 짜넣어지는 일이 많다. 제1도에 전자동조방식의 튜너를 짜넣은 실드케이스를 도시하면, 회로 부품이 실린회로 기판(1)의 주위에는 겉틀(2)이 납땜되고, 내부를 칸막이판(3), (3)에 의해 분할한후, 상하에 뚜껑(4), (4)를 끼워 넣어서 실드 케이스를 형성하고 있는 것이었다.Conventionally, tuner tuning circuits and local oscillation circuits of television receivers and radio receivers are incorporated in a shield case to protect circuit signals from external magnetic and electromagnetic waves and to prevent natural high frequency radio waves from leaking to the outside. many. In FIG. 1, a shield case incorporating a fully tuned tuner is brazed around a circuit board 1 on which circuit components are loaded, and the inside of the partition plates 3 and 3 is soldered. After dividing, the lids 4 and 4 were sandwiched above and below to form a shield case.

상기, 칸막이판(3), (3)과 회로기판(1)은 제2도에 표시하는 바와같이, 회로기판(1)에 천공되는 투공(1a)에 상부칸막이판(3)의 고정각(3a)를 삽입하여서 납땜되고, 또 회로기판(1)이면 접지패턴(1b)에는 하부칸막이판(3')의 지지각(3b)를 접촉시켜서 납땜이 되어있다. 그런데, 상기회로기판(1)의 투공(1a)는, 그 폭 B가 좁아서, 회로부품의 납땜시에 투공(1a)가 막히기 쉽고, 고정각(3a)를 삽입하기가 곤란하거나, 또 회로기판(1)의 접지패턴(1b)에 지지각(3b)를 납땜할 시에는 땜납(5)가 흘러떨어져서, 납땜불량으로되는 일이 있었다. 본 발명은 상기와 같은 결점을 제거하여 칸막이판의 부착을 개량한 튜너의 실드 케이스를 제공하는 것이다.As shown in FIG. 2, the partition plates 3, 3 and the circuit board 1 have a fixed angle of the upper partition plate 3 to the perforations 1a perforated in the circuit board 1. 3a) is inserted and soldered, and in the case of the circuit board 1, the ground pattern 1b is brought into contact with the support angle 3b of the lower partition plate 3 'for soldering. However, the perforations 1a of the circuit board 1 have a narrow width B, so that the perforations 1a are easily blocked when soldering circuit parts, and it is difficult to insert the fixed angle 3a, or the circuit board When soldering the support angle 3b to the ground pattern 1b of (1), the solder 5 may flow down, resulting in poor soldering. The present invention provides a shield case of a tuner in which the above-mentioned defects are removed to improve the attachment of the partition plate.

이하, 본 발명의 1실시예를 도면을 참조하여 설명하면, 제3도에 있어서, (1)은 회로부품을 실리는 회로기판이며, 이 회로기판(1)상에는 폭넓은 투공(1a)가 천공되어 있다. 이 투공(1a)에는 상부칸막이판(3)의 고정각(3a)의 하부칸막이판(3')의 지지각(3b)가 삽입되고, 납땜이 행해지고 있는 것이다.Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 3, reference numeral 1 denotes a circuit board on which circuit components are mounted. On this circuit board 1, a wide perforation 1a is drilled. It is. The support angle 3b of the lower partition plate 3 'of the fixed angle 3a of the upper partition plate 3 is inserted into this perforation 1a, and soldering is performed.

따라서, 회로기판(1)상의 투공(1a)가 폭C만클 넓혀져 있으므로, 회로부품의 납땜시에 투공(1a)가 막히는 일이 적어진다. 또, 한개의 투공(1a)내에 고정각(3a)와 지지각(3b)가 삽입되어서, 납땜을 행하므로, 양편다리의 사이에 생기는 근소한 틈새의 땜납이 침입하고, 흘러떨어지는 땜납을 방지할수 있는 것이다.Therefore, since the perforations 1a on the circuit board 1 are widened by a width C, the perforations 1a are less likely to be clogged when soldering the circuit components. Moreover, since the fixed angle 3a and the support angle 3b are inserted in one perforation 1a, and soldering is performed, the solder of the small gap which arises between both legs enters, and can prevent the solder which flows down. will be.

또, 상기 실시예에서의 지지각을 제4도에 표시하는 바와같이, 그 중간부분에 계지부(3c)를 설치함으로써 납땜(5)가 다시 흘러 떨어지기 어렵게 되는 것이다.In addition, as shown in FIG. 4, the support angle in the above embodiment is provided with the locking portion 3c in the middle portion thereof, whereby the solder 5 hardly flows again.

이상과 같이 본 발명의 실드 케이스에서는, 기판의 주위에 겉틀을 둘러싸서 내부를 칸막이판에 의해 분할하고, 상하로 뚜껑을 끼워 넣는 실드 케이스에 있어서, 회로기판에 천설한 투공에 상부칸막이판의 고정과의 하부칸막이판의 지지각을 삽입납땜하는 것을 특징으로하는 것이므로, 회로부품을 납땜할 시에 회로 기판상의 투공이 막히는 일이 없고, 또 칸막이판의 고정각 및 지지각의 땜납이 흘러 떨어지는 일이 없어져서 납땜 불량이 없어지는 것이다.As described above, in the shield case of the present invention, in the shield case which surrounds the outer frame around the substrate and divides the inside by the partition plate and inserts the lid up and down, the upper partition plate is fixed to the perforated hole formed in the circuit board. It is characterized by inserting and soldering the support angle of the lower partition plate, so that the hole on the circuit board is not blocked when soldering the circuit components, and the solder of the fixed angle and the support angle of the partition plate flows. This will eliminate the soldering defects.

Claims (1)

회로기판(1)의 주위에 겉틀(2)를 둘러서 그 내부를 상부칸막이판(3)과 하부칸막이판(3')에 의해 분할하고 상하에 뚜껑(4)를 끼워넣는 튜너의 실드 케이스에 있어서, 회로기판(1)에 천설한 투공(1a)에 상부칸막이판(3)의 고정각(3a)와 하부칸막이판(3')의 지지각(3b)를 삽입, 납땜하여 회로 부품을 납땜하는 경우 회로기판(1)상의 투공(1a)의 막힘을 방지하고, 상부칸막이판(3)의 고정각(3a)과 하부칸막이판(3')의 지지각(3b)사이의 땜납이 흘러 떨어짐을 방지한 것을 특징으로 하는 튜너의 실드 케이스.In the shield case of the tuner which surrounds the outer frame 2 around the circuit board 1 and divides the inside thereof by the upper partition plate 3 and the lower partition plate 3 'and inserts the lid 4 up and down. Soldering a circuit component by inserting and soldering a fixed angle 3a of the upper partition plate 3 and a support angle 3b of the lower partition plate 3 'to a through hole 1a laid in the circuit board 1 In this case, the blockage of the perforations 1a on the circuit board 1 is prevented, and the solder flows between the fixed angle 3a of the upper partition plate 3 and the support angle 3b of the lower partition plate 3 '. The shield case of the tuner which prevented it.
KR1019840000392A 1983-01-28 1984-01-28 Shield case of tuner KR890004673B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1983012552U JPS59119092U (en) 1983-01-28 1983-01-28 shield case
JP58-12552 1983-01-28
JP???12552 1983-01-28

Publications (2)

Publication Number Publication Date
KR840008094A KR840008094A (en) 1984-12-12
KR890004673B1 true KR890004673B1 (en) 1989-11-24

Family

ID=11808494

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840000392A KR890004673B1 (en) 1983-01-28 1984-01-28 Shield case of tuner

Country Status (2)

Country Link
JP (1) JPS59119092U (en)
KR (1) KR890004673B1 (en)

Also Published As

Publication number Publication date
JPS59119092U (en) 1984-08-11
KR840008094A (en) 1984-12-12

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