JPS58104534A - Tuner shield assembly - Google Patents

Tuner shield assembly

Info

Publication number
JPS58104534A
JPS58104534A JP18306381A JP18306381A JPS58104534A JP S58104534 A JPS58104534 A JP S58104534A JP 18306381 A JP18306381 A JP 18306381A JP 18306381 A JP18306381 A JP 18306381A JP S58104534 A JPS58104534 A JP S58104534A
Authority
JP
Japan
Prior art keywords
plate
shield
wiring board
shield plate
soldering
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
JP18306381A
Other languages
Japanese (ja)
Other versions
JPS6245732B2 (en
Inventor
Hitoshi Hasegawa
仁 長谷川
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18306381A priority Critical patent/JPS58104534A/en
Publication of JPS58104534A publication Critical patent/JPS58104534A/en
Publication of JPS6245732B2 publication Critical patent/JPS6245732B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007Casings
    • H05K9/006Casings specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Structure Of Receivers (AREA)

Abstract

PURPOSE:To improve the workability and the performance of an assembly, by forming shield plates shielding blocks and a frame plate as one body. CONSTITUTION:An electronic circuit selecting signal from electromagnetic waves of VHF and UHF bands is assembled in a plurality of blocks, blocks and the entire circuit are shielded and assembled in the same chassis. Shield plates 10a-10C and side frame plates are formed incorporatedly in a chassis frame body 10, and a connector 11 with terminals is fitted to a front notch 10e. The front and rear surface of a printed wiring board 12 are mounted with electronic components 13 and paste 15 for solder is applied on the surface in contact with the shield plates. A back shield plate 14 is folded by folding one metallic plate and plurality of notched tage 14a, 14d are provided. The chassis frame body 10, the board 12, and the back sheld plate 14 are sequentially laminated, the shield plates and the electronic circuit are fixed, and the front side of the board 12 is dipped for soldering when the back side is dipped for incorporation.

Description

【発明の詳細な説明】 本発明はテレビジョン受信機に使用されるチーーナシー
ルド構造体に係り、さらに詳述すれば、vHF(超短波
)帯とUHF(極超短波)帯の電熱を受信してこれから
1チヤネルを選択して中間周波信号に変換するチー−す
を構成する電子回路を複数の独立ブロックに組込み各ブ
ロック間及び回路全体をシールドして同一シャーシに組
立てて一体構造物としたチーーナシールド構造体に関す
るもので、特にノールド板取付は構造の改良を図ったも
のである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a Qina shield structure used in a television receiver. Relates to a chip-shield structure in which electronic circuits constituting a chip that selects a channel and converts it into an intermediate frequency signal are assembled into a plurality of independent blocks, and the blocks are shielded and the entire circuit is assembled into the same chassis to form an integrated structure. In particular, the structure of the knoll plate was improved.

テレビジョン受信機のチューナは、VHF帯及びUHF
帯ごとに独立したブロックに電子回路が組込まれておシ
、各ブロック間及び回路全体を十分にじやへいして不要
信号の出入りを減らすために、枠体ンヤーシ内に各ブロ
ックを分離するシールド板を設け、さらにその上をシー
ルドカバーで覆う構造が採用されている。
The tuner of the television receiver supports VHF band and UHF band.
Electronic circuits are built into independent blocks for each band, and in order to sufficiently protect each block and the entire circuit to reduce the ingress and egress of unnecessary signals, a shield plate is installed within the frame to separate each block. A structure is adopted in which a shield cover is provided over the shield cover.

従来構造とその問題点を第1図、第2図によって説明す
る。第1図は展開斜視図、第2図はその組立て後のX−
X断面図である。第1図及び第2図において、1は枠体
のシャーシで、金属板をコの字状に折曲げて作られ、後
記する配線基板6をはんだ付けによってンヤー71に固
定するだめの基板固定用切起こし1aと、後記する受板
2を保持するための受板保持用爪1bとが設けである。
The conventional structure and its problems will be explained with reference to FIGS. 1 and 2. Figure 1 is an exploded perspective view, Figure 2 is an assembled X-
It is an X sectional view. 1 and 2, reference numeral 1 denotes a frame chassis, which is made by bending a metal plate into a U-shape, and is used for fixing a wiring board 6, which will be described later, to a wire 71 by soldering. It is provided with a cut-and-raise 1a and a receiving plate holding claw 1b for holding a receiving plate 2, which will be described later.

2はシャーシ1のコの字の開放部に保持される受板で、
金属板で作られ、ンヤーシ1に設けた受板保持用爪1b
が挿入されるシャーシ爪挿入孔2aが設けである。6は
VHF側シールド板で、金属板で作られ、4はUHF側
シールド板で同様に金属板で作られる。シールド板6に
はシールド板6と4との間、シールド板3と受板2との
間をはんだ付けで固定する接続部となる7一ルド板接続
部6aと、シールド板6を配線基板6に挿入する足とな
るシールド板基板挿入足6bとが設けてあり同様にシー
ルド板4には、シールド板4と6との間、シールド板4
と/ヤーン1との間をはんだ付けで固定する接続部とな
るシールド板接続部4aと、シールド板4を配線基板6
に挿入する足となるシールド板基板挿入足4bとが設け
である。5は複数の端子5aが取付けられた絶縁板製の
端子付コネクタである。6は配線基板で、電子回路を構
成する電気部品7がそれぞれ所定位置に装着されている
。8は上側はんだ部で、シールド板接続部3aと4aと
の間、シールド板接続部3aと受板2との間、シールド
板接続部4aと7ヤー・/1との間をそれぞれシャーン
1内の上部においてはんだ付けしだ部分である。9は下
側はんだ部で、シールド板基板挿入足3b、4b及び端
子5aと配線基板6とを配線基板6の裏側においてそれ
ぞれはんだ付けした部分である。
2 is a receiving plate held in the U-shaped opening of chassis 1;
A catch plate holding claw 1b made of a metal plate and provided on the support plate 1
A chassis claw insertion hole 2a is provided for insertion of the chassis claw. 6 is a VHF side shield plate made of a metal plate, and 4 is a UHF side shield plate also made of a metal plate. The shield plate 6 has a connecting part 7 that serves as a connecting part for fixing the shield plates 6 and 4 and between the shield plate 3 and the receiving plate 2 by soldering, and the shield plate 6 is connected to the wiring board 6. Similarly, the shield plate 4 is provided with a shield plate board insertion foot 6b that serves as a foot to be inserted into the shield plate 4.
A shield plate connection part 4a which is a connection part for fixing the and /yarn 1 by soldering, and a wiring board 6 which connects the shield plate 4 to the wiring board 6.
A shield plate board insertion foot 4b is provided as a foot to be inserted into the shield plate. Reference numeral 5 denotes a connector with terminals made of an insulating plate to which a plurality of terminals 5a are attached. Reference numeral 6 denotes a wiring board, on which electrical components 7 constituting an electronic circuit are mounted at predetermined positions. Reference numeral 8 denotes an upper solder part, which is connected between the shield plate connecting parts 3a and 4a, between the shield plate connecting part 3a and the receiving plate 2, and between the shield plate connecting part 4a and 7 Y/1 in the shear 1. This is the soldering part at the top. Reference numeral 9 denotes a lower solder portion, which is a portion where the shield board insertion legs 3b, 4b and the terminal 5a and the wiring board 6 are respectively soldered on the back side of the wiring board 6.

この上う彦構成を持つ従来のチー−−ナシールド構造体
は、シャーシ1、受板2及びシールド板64がそれぞれ
別の部品として作られ、シャーシ1と受板2との固定、
シャーシ1と7−ルド板3.4との固定、受板2とシー
ルド板6.4との固定シールド板3とシールド板4との
固定、はいずれもはんだ付けによって行なわれる構造で
あることから、はんだ付は個所が多くて作業性が悪く、
さらにシャーシ1と受板2の組込み方向が横方向(水平
面上を移動させる方向)であることがら組立性が悪いな
どの問題点があった。
In the conventional chester shield structure having this Uhiko configuration, the chassis 1, the receiving plate 2, and the shield plate 64 are each made as separate parts, and the fixing of the chassis 1 and the receiving plate 2,
Since the structure is such that the fixing of the chassis 1 and the shield plate 3.4, the fixing of the receiving plate 2 and the shield plate 6.4, and the fixing of the shield plate 3 and the shield plate 4 are all performed by soldering. , Soldering involves many parts and is difficult to work with.
Furthermore, since the direction in which the chassis 1 and the receiving plate 2 are assembled is the lateral direction (the direction in which they are moved on a horizontal plane), there are problems such as poor assembly efficiency.

本発明の目的は、従来技術での上記した問題点を解消し
、作業性、組立性を向上させることができると共に部品
点数が少なくてすむ安価々チ−ナシールド構造体を提供
するにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive China shield structure that can solve the above-mentioned problems of the prior art, improve workability and assembly efficiency, and require fewer parts.

本発明の特徴は、上記目的を達成するために、ブロック
間をシールドするシールド板と枠板とが金属板にて一体
形成され前面切欠き部に端子付コネクタを取付けたシャ
ーシ枠体と、チー−すの電子回路を構成する部品類が表
面及び裏面に装着され前記シャーシ枠体のシールド板と
当接する表面位置にはんだ付は用のペーストが塗布され
た配線基板と、一枚の金属板の折曲げによって形成され
前記配線基板の裏面にはんだ付けによって固着される複
数の切起こし足を備えだ裏シールド板とを配線基板を中
間に挾んでその表側にシャーシ枠体を裏側に裏ンールド
板を積重ねることでシールド板及び電子回路がそれぞれ
の定位置に固定配置され配線基板裏側の浸漬はんだ付は
時に同時に表側もはんだ付けで固定して一体構造物とす
ることにある。
The present invention is characterized in that, in order to achieve the above object, a chassis frame body in which a shield plate for shielding between blocks and a frame plate are integrally formed of a metal plate, and a connector with a terminal is attached to a front notch portion; - A wiring board on which parts constituting the electronic circuit are mounted on the front and back sides and a paste for soldering is applied to the surface position where it contacts the shield plate of the chassis frame, and a single metal plate. A back shield plate is formed by bending and has a plurality of cut-and-raised legs that are fixed to the back side of the wiring board by soldering, and the wiring board is sandwiched in the middle, and a chassis frame body is placed on the front side of the back shield plate, and a back rolled board is placed on the back side of the back shield plate. By stacking, the shield plates and electronic circuits are fixedly placed in their respective fixed positions, and sometimes the back side of the wiring board is dip soldered and the front side is also fixed by soldering at the same time to form an integrated structure.

以下第3図、第4図により本発明の一実施例を説明する
。第6図は展開斜視図、第4図は組立て後の断面図を示
す。第6図及び第4図において、10はシャーシ枠体で
、金属板によってVHF側シールド板1Qa、UHF側
シールド板10b及び接続残部1’ D Cが口の字状
の側面枠と共に一体形成されており、前面に設けた切欠
き部10eには、複数個の端子11aを取付けた端子付
コネクタ11がカシメあるいは溶着等によって固定され
る。壕だ、/ヤーシ枠体10の側面の複数個所に後記の
裏シールド板14をシャーシ枠体10に固定する際の貫
通孔となる裏シールド板固定孔10dがあけである。1
2は配線基板で、その表側には電子回路を構成する電気
部品類16が、また裏側にも抵抗、コンデンサ等の電気
部品類16がそれぞれ所定位置に装着され、さらに配線
基板12の表面の、前記シールド板10a、10b及び
端子11aと当接するアースパターン部には、はんだ付
は用のペースト15が塗布される。14は裏シールド板
で、一枚の金属板を折曲げることによって、複数個の足
14a、複数個の切起こし14d及び接続残部14b、
14Cが一体形成されろ足14aはシャ−7枠体10の
複数のシールド板10a、10bに対応する位置に設け
られ、壕だ切起こし14dは配線基板12の裏側に設け
られたアースパターン部に対応する位置に設けられろ。
An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. FIG. 6 shows a developed perspective view, and FIG. 4 shows a sectional view after assembly. In FIGS. 6 and 4, reference numeral 10 denotes a chassis frame, in which a VHF side shield plate 1Qa, a UHF side shield plate 10b, and a connecting portion 1'DC are integrally formed with a side frame in the shape of an opening. A terminal connector 11 having a plurality of terminals 11a attached thereto is fixed to the notch 10e provided on the front surface by caulking, welding, or the like. The back shield plate fixing holes 10d, which serve as through holes for fixing the back shield plate 14 (described later) to the chassis frame 10, are drilled at multiple locations on the side surface of the palm frame 10. 1
Reference numeral 2 denotes a wiring board, on the front side of which electrical parts 16 constituting an electronic circuit are mounted, and on the back side electrical parts 16 such as resistors and capacitors are mounted at predetermined positions, and furthermore, on the surface of the wiring board 12, A soldering paste 15 is applied to the ground pattern portions that come into contact with the shield plates 10a, 10b and the terminals 11a. Reference numeral 14 denotes a back shield plate, which is formed by bending a single metal plate to form a plurality of legs 14a, a plurality of cut and raised portions 14d, and a connecting portion 14b.
14C is integrally formed. The legs 14a are provided at positions corresponding to the plurality of shield plates 10a and 10b of the chassis 7 frame 10, and the groove cut and raised portions 14d are provided on the ground pattern portion provided on the back side of the wiring board 12. Set it up in the corresponding position.

裏シールド板14には、また、7ヤ一シ枠体10の内側
寸法よりやや小さい外形をもつ折曲げ部14fと、さら
に、シャーシ枠体10に設けられた裏ンールド板固定孔
10dに対応する側面位置に複数個のシャーシ固定爪1
4eとが設けられる。
The back shield plate 14 also has a bent portion 14f having an outer diameter slightly smaller than the inner dimension of the seven-sided frame 10, and a bent portion 14f that corresponds to the back rolled plate fixing hole 10d provided in the chassis frame 10. Multiple chassis fixing claws 1 on the side
4e is provided.

このシャーシ固定爪14eと裏シールド板固定孔10d
とで、組込み後の抜は防止と、アース/−ルドとの働き
をする。
This chassis fixing claw 14e and the back shield plate fixing hole 10d
This prevents disconnection after assembly and acts as a ground/ground.

構造体の組立ては、まず端子付コネクタ11をシャーシ
枠体10に取付けたものを、配線基板12の上方に積重
ね、この配線基板12の下方にさらに裏シールド板14
を積重ねて組込むことにより、配線基板12は裏シール
ド板14の切起こし14dで外形を固定され、シャ−7
枠体10と裏7−ルド板14とで配線基板12が挾まれ
る。
To assemble the structure, first, the connector with terminals 11 attached to the chassis frame 10 are stacked above the wiring board 12, and the back shield plate 14 is further placed below the wiring board 12.
By stacking and assembling the wiring board 12, the outer shape of the wiring board 12 is fixed by the cut and raised portion 14d of the back shield plate 14, and
A wiring board 12 is held between the frame 10 and the back plate 14.

これにより、配線基板12の裏側での浸漬はんだ付けと
同時に表側でのはんだ付けも行々われることになる。
As a result, immersion soldering on the back side of the wiring board 12 is performed simultaneously with soldering on the front side.

本発明によれば、(1)複数のシールド板をシャーシ枠
体に一体形成する構造であることから、従来構造で必要
であったシールド板とシャーシ枠体。
According to the present invention, (1) since the structure is such that a plurality of shield plates are integrally formed on the chassis frame, the shield plate and the chassis frame are required in the conventional structure.

との間のはんだ付は作業が不要となり、(2)積重ね方
式であることから生産工程の自動化が容易であり、(6
)部品点数が従来構造に比べて少なくてすむことから製
品を安価とすることができ、(4)配線基板に直接外力
が加わら々い構造となっていることから信頼性の高い一
体構造体とすることができろ、等の効果がある。
(2) The stacking method makes it easy to automate the production process, and (6)
) The number of parts is fewer than the conventional structure, which makes the product cheaper, and (4) the structure prevents direct external force from being applied to the wiring board, making it a highly reliable integrated structure. There are effects such as being able to do things.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来例の展開斜視図、第2図はそのX−X断面
図、第6図は本発明の一実施例の展開斜視図、第4図は
その断面図である。 符号の説明 10・・・シャーシ枠体 1、Oa 1.V HF側7−ルド板 iob・・UHF側シールド板 10C・・・接続残部 10d・・・裏シールド板固定孔 10e・・・切欠き部   11・・・端子付コネクタ
11a・・端子     12・・・配線基板13・・
・電気部品    14・・・裏シールド板14a・・
・足 14b、14C・・・接続残部 14d・・・切起こし   14e・・・シャーシ固定
爪14f・・・折曲げ部 15・・・はんだ付は用のペースト 第1 林) 1’3図
FIG. 1 is an exploded perspective view of a conventional example, FIG. 2 is a sectional view taken along the line XX, FIG. 6 is an expanded perspective view of an embodiment of the present invention, and FIG. 4 is a sectional view thereof. Explanation of symbols 10... Chassis frame 1, Oa 1. V HF side 7-shield plate iob...UHF side shield plate 10C... Connection remaining part 10d... Back shield plate fixing hole 10e... Notch part 11... Connector with terminal 11a... Terminal 12...・Wiring board 13...
・Electrical parts 14... Back shield plate 14a...
・Legs 14b, 14C... Connection remaining portion 14d... Cut and raise 14e... Chassis fixing claw 14f... Bent part 15... Soldering paste No. 1 Hayashi) 1'3 Diagram

Claims (1)

【特許請求の範囲】[Claims] VHF(超短波)帯とUHF(極超短波)帯の電波から
1チヤネルを選択して中間周波信号に変換するチー−す
の電子回路を複数の独立ブロックに組込み各ブロック間
及び回路全体をシールドして同一シャーシに組立てて一
体構造物としたチ−ナンールド構造体において、ブロッ
ク間をシールドするシールド板と枠板とが金属板にて一
体形成され前面切欠き部に端子付コネクタを取付けたシ
ャーシ枠体と、前記電子回路を構成する部品類が表面及
び裏面に装着され前記シャーシ枠体のシールド板と当接
する表面位置にはんだ付は用のペーストが塗布された配
線基板と、一枚の金属板の折曲げによって形成され前記
配線基板の裏面にはんだ付けによって固着される複数の
切起こし足を備えた裏シールド板とを、配線基板を中間
に挾んでその表側に7ヤ一シ枠体を裏側に裏シールド板
を積重ねることでシールド板及び電子回路がそれぞれの
定位置に固定配置され配線基板裏側の浸漬はんだ付は時
に同時に表側もはんだ付けで固定して一体構造物とした
ことを特徴とするチーーナシールド構造体。
The electronic circuit of Chees, which selects one channel from the VHF (Very High Frequency) band and UHF (Ultra High Frequency) band and converts it into an intermediate frequency signal, is incorporated into multiple independent blocks, shielding each block and the entire circuit. A chassis frame body in which the shield plate that shields between blocks and the frame plate are integrally formed of a metal plate, and a connector with a terminal is attached to the front notch, in a Chenan fold structure assembled on the same chassis to form an integrated structure. , a wiring board on which parts constituting the electronic circuit are mounted on the front and back sides and a soldering paste is applied to the surface position where it contacts the shield plate of the chassis frame; and a single metal plate. A back shield plate having a plurality of cut and raised legs formed by bending and fixed to the back side of the wiring board by soldering, and a 7-sided frame body on the front side with the wiring board in between. By stacking the back shield plates, the shield plate and the electronic circuit are fixed in their respective positions, and the back side of the wiring board is immersed in soldering, and sometimes the front side is also fixed by soldering at the same time, resulting in an integrated structure. Cheena shield structure.
JP18306381A 1981-11-17 1981-11-17 Tuner shield assembly Granted JPS58104534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18306381A JPS58104534A (en) 1981-11-17 1981-11-17 Tuner shield assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18306381A JPS58104534A (en) 1981-11-17 1981-11-17 Tuner shield assembly

Publications (2)

Publication Number Publication Date
JPS58104534A true JPS58104534A (en) 1983-06-22
JPS6245732B2 JPS6245732B2 (en) 1987-09-29

Family

ID=16129091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18306381A Granted JPS58104534A (en) 1981-11-17 1981-11-17 Tuner shield assembly

Country Status (1)

Country Link
JP (1) JPS58104534A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052119A (en) * 1983-08-31 1985-03-25 Matsushita Electric Ind Co Ltd Electronic tuner device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6314350A (en) * 1986-07-04 1988-01-21 Mitsubishi Electric Corp Program search mechanism for magnetic recording and reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6052119A (en) * 1983-08-31 1985-03-25 Matsushita Electric Ind Co Ltd Electronic tuner device

Also Published As

Publication number Publication date
JPS6245732B2 (en) 1987-09-29

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