JP2007141988A - Shield case, and radio frequency device using same - Google Patents

Shield case, and radio frequency device using same Download PDF

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Publication number
JP2007141988A
JP2007141988A JP2005331064A JP2005331064A JP2007141988A JP 2007141988 A JP2007141988 A JP 2007141988A JP 2005331064 A JP2005331064 A JP 2005331064A JP 2005331064 A JP2005331064 A JP 2005331064A JP 2007141988 A JP2007141988 A JP 2007141988A
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Prior art keywords
frame
frame body
cover
shield case
recess
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JP2005331064A
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Japanese (ja)
Inventor
Shiro Yasue
志郎 安江
Hiroyuki Yamada
宏之 山田
Yuji Doi
裕二 土井
Tomonari Kato
智成 加藤
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2005331064A priority Critical patent/JP2007141988A/en
Publication of JP2007141988A publication Critical patent/JP2007141988A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a small size RF device providing a small gap between a terminal and the external circumference of a frame. <P>SOLUTION: The RF device comprises a metal frame 22 which is opened at least in its one direction, a front cover 35 (or rear cover 36) covering the opening side of this frame 22, a tongue piece 38 provided at the external circumference of this front cover 35 (or rear cover 36), and an engaging projection 34 formed in the side surface of the frame 22 for engagement with the engaging part 39 of this tongue piece 38. In this RF device, the front surface side recess 31 (or recess 30 in the rear side) is provided to the external circumference of the frame 22, and the engaging projection 34 is provided to the external circumferential surface of the front surface projection 31 (or rear surface side recess 30). Accordingly, amount of projection from the external circumference of the frame 22 of the tongue piece 38 can be reduced to a certain extent (or reduced completely up to zero) with the front surface side recess 31 (or with the rear surface side recess 30). Therefore, a gap 40 between the external circumference of frame 22 and the terminal 29 can be reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、高周波信号をシールドするシールドケースとこれを用いた高周波機器に関するものである。   The present invention relates to a shield case that shields a high-frequency signal and a high-frequency device using the same.

以下、従来のシールドケースについて図面を用いて説明する。図7は従来のシールドケースを用いた高周波機器1の断面図である。図7において、従来の高周波機器1は、枠体2内に基板3が設けられ、この基板3上に高周波回路が形成されている。なお枠体2の上下には開放部4を有し、この開放部4を覆うようにカバー5が装着されている。   Hereinafter, a conventional shield case will be described with reference to the drawings. FIG. 7 is a cross-sectional view of a high-frequency device 1 using a conventional shield case. In FIG. 7, the conventional high-frequency device 1 is provided with a substrate 3 in a frame 2, and a high-frequency circuit is formed on the substrate 3. Note that an open portion 4 is provided above and below the frame 2, and a cover 5 is attached so as to cover the open portion 4.

このカバー5には、開放部4を覆う天面部6と、この天面部6の外周に設けられた舌片7を有している。この舌片7には係合部8を有し、この係合部8が、枠体2と係合することでカバー5が枠体2に装着固定される。   The cover 5 has a top surface portion 6 that covers the open portion 4 and a tongue piece 7 provided on the outer periphery of the top surface portion 6. The tongue piece 7 has an engaging portion 8, and the engaging portion 8 engages with the frame body 2, whereby the cover 5 is attached and fixed to the frame body 2.

枠体2の側面には複数の端子9が並んで設けられた端子板10が固定されている。そして、これらの端子9は、折り曲げられている。そしてこのような従来の高周波機器1において、端子9と枠体2の外周面との間には4mmの間隔を設けている。   A terminal plate 10 provided with a plurality of terminals 9 arranged side by side is fixed to the side surface of the frame 2. These terminals 9 are bent. In such a conventional high-frequency device 1, a distance of 4 mm is provided between the terminal 9 and the outer peripheral surface of the frame body 2.

なお、この出願の発明に関連する先行技術文献情報としては、例えば特許文献1が知られている。
実開平2−116787号公報
For example, Patent Document 1 is known as prior art document information related to the invention of this application.
Japanese Utility Model Publication No. 2-116787

このような従来のシールドケースを用いた高周波機器では、枠体2と端子9との間の距離は4mm以上必要であった。これは枠体2と端子9との間に、舌片7が枠体2より突出することによる距離と、端子9の折り曲げを行う際に枠体2と端子9との間へ折り曲げ金型を入れるための距離が必要となるためである。つまり、枠体2と端子9との間の距離を大きくすることが必要となる。これにより、高周波機器はサイズが大きくなり、マザー基板へ装着する場合にマザー基板の中の占有面積が大きくなるという課題を有していた。   In such a conventional high-frequency device using a shield case, the distance between the frame body 2 and the terminal 9 needs to be 4 mm or more. This is because the tongue 7 protrudes from the frame 2 between the frame 2 and the terminal 9, and when the terminal 9 is bent, the bending mold is inserted between the frame 2 and the terminal 9. This is because a distance is required to enter. That is, it is necessary to increase the distance between the frame 2 and the terminal 9. As a result, the size of the high-frequency device is increased, and there is a problem in that the occupied area in the mother substrate increases when the high-frequency device is mounted on the mother substrate.

そこで本発明は、この問題を解決したもので、端子と枠体外周との間の隙間を小さくし、小型の高周波機器を提供することを目的としたものである。   Therefore, the present invention solves this problem, and aims to provide a small high-frequency device by reducing the gap between the terminal and the outer periphery of the frame body.

この目的を達成するために本発明のシールドケースは、少なくとも一方面が開放された金属製の枠体と、この枠体の開放側を覆う金属製のカバーと、このカバーの外周に設けられた舌片と、この舌片の係合部が係合されるとともに、前記枠体の側面に形成された係止部とを備え、前記枠体の外周には凹部を設けるとともに、前記係止部は前記凹部外周面に設けられたものである。これにより所期の目的を達成できる。   In order to achieve this object, the shield case of the present invention is provided with a metal frame that is open at least on one side, a metal cover that covers the open side of the frame, and an outer periphery of the cover. The tongue piece is engaged with the engaging portion of the tongue piece, and includes a locking portion formed on a side surface of the frame body. A recess is provided on the outer periphery of the frame body, and the locking portion Is provided on the outer peripheral surface of the recess. This achieves the intended purpose.

以上のように本発明によれば、少なくとも一方面が開放された金属製の枠体と、この枠体の開放側を覆う金属製のカバーと、このカバーの外周に設けられた舌片と、この舌片の係合部が係合されるとともに、前記枠体の側面に形成された係止部とを備え、前記枠体の外周には凹部を設けるとともに、前記係止部は前記凹部外周面に設けられたものであり、これにより係合部が係止される舌片が、凹部に係合されるので、カバーの舌片が枠体外周より突出し難くなる。従って、枠体外周と端子との間の隙間を小さくできるので、小型の高周波機器を実現できる。   As described above, according to the present invention, at least one surface of the metal frame, the metal cover that covers the open side of the frame, the tongue provided on the outer periphery of the cover, The engaging portion of the tongue piece is engaged and a locking portion formed on a side surface of the frame body. A recess is provided on the outer periphery of the frame body, and the locking portion is an outer periphery of the recess. Since the tongue piece that is provided on the surface and engages with the engaging portion is engaged with the concave portion, the tongue piece of the cover hardly protrudes from the outer periphery of the frame body. Accordingly, the gap between the outer periphery of the frame and the terminal can be reduced, so that a small high-frequency device can be realized.

以下、本実施の形態におけるシールドケースを用いた高周波機器21について図面を用いて説明する。図1は、本実施の形態における高周波機器21の要部断面図であり、図2は同高周波機器21における表カバー装着前の上面図であり、図3は同高周波機器21における枠体22の横側面図であり、図4は同高周波機器21の横側面図である。図1から図4において、本実施の形態における高周波機器21は、金属製の枠体22内に基板23が嵌合され、この基板23上に空芯コイル24やIC25などによる高周波回路が形成される。ここで、枠体22には仕切り板が一体に形成され、高周波回路の回路ブロック間の遮蔽を行っている。なお、空芯コイル24は基板23の表面側23aに装着され、IC25は基板23の裏面側23bに装着される。なおこの枠体22の裏面側22aと表面側22bとは共に開放されている。   Hereinafter, the high-frequency device 21 using the shield case in the present embodiment will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a high-frequency device 21 according to the present embodiment, FIG. 2 is a top view of the high-frequency device 21 before mounting a front cover, and FIG. 4 is a lateral side view, and FIG. 4 is a lateral side view of the high-frequency device 21. 1 to 4, in the high-frequency device 21 in the present embodiment, a substrate 23 is fitted in a metal frame 22, and a high-frequency circuit such as an air-core coil 24 or an IC 25 is formed on the substrate 23. The Here, a partition plate is integrally formed on the frame body 22 to shield between circuit blocks of the high-frequency circuit. The air core coil 24 is mounted on the front surface side 23 a of the substrate 23, and the IC 25 is mounted on the back surface side 23 b of the substrate 23. Note that both the back side 22a and the front side 22b of the frame 22 are open.

次に図3に示すように、枠体22の横側面の裏面側22aには切欠き部26(図3、図4に示す)が形成される。そして基板23には、この切欠きから突出する突出部27が形成される。そしてこの突出部27の表面側23aには、樹脂製の端子台28が搭載される。この端子台28の一方には端子29が複数本一列に並んで設けられる。この端子29は端子台28を直線的に貫通し、端子台28の他方側から突出することで挿入端子29aが形成される。そしてこの挿入端子29aを基板23に挿入することで、端子29は基板23に垂直な方向に立った状態で装着されることとなる。なお、これらの挿入端子29aは、突出部27に設けられた孔(図示せず)に挿入されて、裏面側ではんだ付けされることで基板23に接続固定される。   Next, as shown in FIG. 3, a cutout portion 26 (shown in FIGS. 3 and 4) is formed on the back surface side 22 a of the lateral side surface of the frame body 22. The substrate 23 is formed with a protruding portion 27 protruding from the notch. A resin terminal block 28 is mounted on the surface side 23 a of the protruding portion 27. A plurality of terminals 29 are arranged in a line on one side of the terminal block 28. The terminal 29 linearly penetrates the terminal block 28 and protrudes from the other side of the terminal block 28 to form an insertion terminal 29a. Then, by inserting the insertion terminal 29 a into the board 23, the terminal 29 is mounted in a state standing in a direction perpendicular to the board 23. These insertion terminals 29a are inserted into holes (not shown) provided in the projecting portion 27 and soldered on the back surface side to be connected and fixed to the substrate 23.

さらに枠体22横側面の裏面側22aには、切欠き部26から枠体22の裏面側22aの方向へ突出し、基板23に設けられた孔(図示せず)を貫通する裏側凹部30が形成される。なお、この裏側凹部30は、切欠き部26の端部より内方へ折り曲げることで、枠体22の外周面より凹んで形成される。なお、本実施の形態では、裏側凹部30の幅は約3mmであり、この裏側凹部30は、枠体22の横側面に2箇所設けている。そしてこのように裏面側22aに切欠き部26を設けることで、IC25から発生した熱をこの切欠き部26より放熱することができ、IC25の発熱による発振回路などの発振周波数の変動を小さくできる。   Further, on the back surface side 22 a of the lateral side surface of the frame body 22, there is formed a back side recess 30 that protrudes from the notch portion 26 toward the back surface side 22 a of the frame body 22 and penetrates a hole (not shown) provided in the substrate 23. Is done. The back side recess 30 is formed to be recessed from the outer peripheral surface of the frame 22 by bending inward from the end of the notch 26. In the present embodiment, the width of the back-side recess 30 is about 3 mm, and the back-side recess 30 is provided at two locations on the side surface of the frame body 22. By providing the notch 26 on the back surface 22a in this way, the heat generated from the IC 25 can be dissipated from the notch 26, and fluctuations in the oscillation frequency of the oscillation circuit and the like due to heat generated by the IC 25 can be reduced. .

一方枠体22の横側面の表面側22bには、内方へ折り曲げることで、枠体22外周面より凹んで形成された表側凹部31が形成される。そして表側凹部31の両側端部には、枠体22との間にスリット32(図3に示す)を設けることで、表側凹部31と枠体22との間を分離している。本実施の形態では、幅が約8mmの表側凹部31を側面側に2箇所設けている。なお、本実施の形態において表側凹部31や裏側凹部30と枠体22外周面との間隔33(凹部の深さ)は、共に1mmとしている。そして、表側凹部31と裏側凹部30との外面側には、係止突起34(係止部の一例として用いた)が設けられている。本実施の形態において、係止突起の突起高さは約0.15mmとしている。   On the other hand, the front side concave portion 31 that is recessed from the outer peripheral surface of the frame body 22 is formed on the surface side 22b of the lateral side surface of the frame body 22 by bending inward. And the slit 32 (shown in FIG. 3) is provided between the frame body 22 at both end portions of the front recess 31 so that the front recess 31 and the frame 22 are separated. In the present embodiment, two front side recesses 31 having a width of about 8 mm are provided on the side surface side. In this embodiment, the interval 33 (depth of the recess) between the front side recess 31 or the back side recess 30 and the outer peripheral surface of the frame 22 is 1 mm. And the latching protrusion 34 (used as an example of the latching | locking part) is provided in the outer surface side of the front side recessed part 31 and the back side recessed part 30. As shown in FIG. In the present embodiment, the protrusion height of the locking protrusion is about 0.15 mm.

このような枠体22には、枠体22の表面側22bの開口部を覆うために金属製の表カバー35が装着され、一方裏側の開口部を覆うために金属製の裏カバー36が装着される。これら表カバー35と裏カバー36のそれぞれには、開口部を覆う天面37と、この天面37の外周縁から折り曲げて形成された舌片38とを有している。そしてこの舌片38の先端には、枠体22の外周に設けられた係止突起34と係合する係合部39を有している。そして、係合部39と係止突起34とが係合されることで、表カバー35や裏カバー36が枠体22に装着固定される。   A metal front cover 35 is attached to such a frame 22 to cover the opening on the front side 22b of the frame 22, and a metal back cover 36 is attached to cover the opening on the other side. Is done. Each of the front cover 35 and the back cover 36 has a top surface 37 that covers the opening, and a tongue piece 38 that is formed by bending from the outer peripheral edge of the top surface 37. At the tip of the tongue piece 38, there is an engaging portion 39 that engages with a locking projection 34 provided on the outer periphery of the frame body 22. Then, the front cover 35 and the back cover 36 are attached and fixed to the frame body 22 by engaging the engaging portion 39 and the locking projection 34.

なお、表側凹部31に嵌合される舌片38の幅は、表側凹部31の幅より大きく、かつスリット32外側間の距離32a(図3に示す)よりも小さくしている。本実施の形態においてスリット32はそれぞれ1mmであり、舌片38の幅は表側凹部31の幅より1mm大きくしている。これにより、スリット32外端部と舌片38の側端部との間は、0.5mmの隙間を有することとなるので、表カバー35の挿入性を損なうことがない。また隙間を0.5mmと小さくしているので、高周波機器21の外部から空芯コイル24へ飛び込む外来ノイズなどによる妨害が発生しにくくなる。   In addition, the width of the tongue piece 38 fitted in the front side concave portion 31 is larger than the width of the front side concave portion 31 and smaller than the distance 32a (shown in FIG. 3) between the slits 32 outside. In the present embodiment, the slits 32 are each 1 mm, and the width of the tongue piece 38 is 1 mm larger than the width of the front recess 31. Accordingly, a gap of 0.5 mm is provided between the outer end portion of the slit 32 and the side end portion of the tongue piece 38, so that the insertability of the front cover 35 is not impaired. In addition, since the gap is as small as 0.5 mm, interference due to external noise or the like jumping into the air-core coil 24 from outside the high-frequency device 21 is less likely to occur.

ここで、表カバー35や裏カバー36を枠体22に装着し易くするために、係合部39の先端には、凹部外面に対して外側方向へ広がる傾斜を設ける。そして、傾斜部分を設けることで、枠体22と端子29との隙間40が大きくなることを防ぐために、枠体22の外周面に表側凹部31や裏側凹部30を設ける。そして、これらに係合する表、裏カバー35,36における係合部39の先端が枠体22の外周面より突出しないようにしている。これにより、表、裏カバー35,36における係合部39の先端が枠体22の外周面より突出しないので、枠体22の外周面と端子29との間の隙間40を小さくでき、小型な高周波機器21を実現できる。なお、本実施の形態では枠体22の外周面と端子29との間の隙間40として1mmを実現している。   Here, in order to make it easier to attach the front cover 35 and the back cover 36 to the frame body 22, the tip of the engaging portion 39 is provided with an inclination that extends outward with respect to the outer surface of the recess. In order to prevent the gap 40 between the frame body 22 and the terminal 29 from becoming large by providing the inclined portion, the front-side concave portion 31 and the back-side concave portion 30 are provided on the outer peripheral surface of the frame body 22. And the front-end | tip of the engaging part 39 in the front and back covers 35 and 36 engaged with these is made not to protrude from the outer peripheral surface of the frame 22. Thereby, since the front-end | tip of the engaging part 39 in front and back covers 35 and 36 does not protrude from the outer peripheral surface of the frame 22, the clearance gap 40 between the outer peripheral surface of the frame 22 and the terminal 29 can be made small, and it is small. The high frequency device 21 can be realized. In the present embodiment, 1 mm is realized as the gap 40 between the outer peripheral surface of the frame 22 and the terminal 29.

図5は本実施の形態における表カバー35の断面図である。図5において、本実施の形態における表カバー35や裏カバー36における係合部39間の寸法51は、32.8mmとしている。一方枠体22の外周寸法51は、33.8mmであり、係止突起34の突起寸法が0.15mmである。従って、表カバー35や裏カバー36を枠体22に装着するときに舌片38は、0.65mm拡げられることとなる。   FIG. 5 is a cross-sectional view of the front cover 35 in the present embodiment. In FIG. 5, the dimension 51 between the engaging portions 39 in the front cover 35 and the back cover 36 in the present embodiment is 32.8 mm. On the other hand, the outer peripheral dimension 51 of the frame 22 is 33.8 mm, and the protrusion dimension of the locking protrusion 34 is 0.15 mm. Therefore, the tongue piece 38 is expanded by 0.65 mm when the front cover 35 and the back cover 36 are mounted on the frame body 22.

つまり、表カバー35や裏カバー36を枠体22に装着するときに、舌片38と天面37との間の折り曲げ部分に応力が集中し、この折り曲げ部分は塑性変形を起こしてしまう。そこで本実施の形態においては、表側凹部31と裏側凹部30の両側端部を枠体22に対し分離し、開放側の反対側で連結している。そしてこのように舌片38を枠体22から分離することで、表側凹部31や裏側凹部30は弾性を有することとなる。従って、このような表側凹部31や裏側凹部30に対して舌片38を係合させれば、裏カバー36や表カバー35を装着する場合に舌片38の拡がりが小さくでき、舌片38の塑性変形量を小さくできる。従って、カバーを挿入する場合に表側凹部31や裏側凹部30間が内側に弾性変形することにより、表カバー35や裏カバー36が装着し易くなる。なお裏側凹部30は、このために、基板とは半田接続が行われていない。   That is, when the front cover 35 and the back cover 36 are attached to the frame 22, stress concentrates on the bent portion between the tongue piece 38 and the top surface 37, and this bent portion causes plastic deformation. Therefore, in the present embodiment, both end portions of the front-side concave portion 31 and the back-side concave portion 30 are separated from the frame body 22 and connected on the opposite side of the open side. And by separating the tongue piece 38 from the frame body 22 in this way, the front side recessed part 31 and the back side recessed part 30 will have elasticity. Therefore, if the tongue piece 38 is engaged with the front side recess 31 or the back side recess 30, the tongue piece 38 can be less spread when the back cover 36 or the front cover 35 is attached. The amount of plastic deformation can be reduced. Accordingly, when the cover is inserted, the front side recess 31 and the back side recess 30 are elastically deformed inward so that the front cover 35 and the back cover 36 can be easily attached. For this reason, the back side recess 30 is not soldered to the substrate.

そして、このように舌片38と天面37との間の折り曲げ部分への応力集中が小さくできるので、舌片38の長さ(あるいは枠体端部から係止突起までの距離)を小さくしても、表カバー35や裏カバー36装着時の舌片の変形は小さくできる。従って、舌片38の長さを短くできることとなり、さらに舌片38は枠体22の外周面より突出しにくくできる。なお本実施の形態における舌片38の長さは5.4mmであり、枠体22への装着後において舌片38の弾性を十分に維持することができる。   Since the stress concentration on the bent portion between the tongue piece 38 and the top surface 37 can be reduced in this way, the length of the tongue piece 38 (or the distance from the end of the frame body to the locking projection) is reduced. However, the deformation of the tongue piece when the front cover 35 and the back cover 36 are mounted can be reduced. Therefore, the length of the tongue piece 38 can be shortened, and the tongue piece 38 can be more difficult to protrude from the outer peripheral surface of the frame body 22. The length of the tongue piece 38 in the present embodiment is 5.4 mm, and the elasticity of the tongue piece 38 can be sufficiently maintained after being attached to the frame body 22.

また、舌片38の塑性変形が小さくなるので、例え修理などのために表カバー35や裏カバー36を外した場合でも、表カバー35や裏カバー36をリサイクルし易くなる。また、表カバー35や裏カバー36を枠体22に確りと装着できることとなるので、シールド性が良好となる。   Further, since the plastic deformation of the tongue piece 38 is reduced, the front cover 35 and the back cover 36 can be easily recycled even when the front cover 35 and the back cover 36 are removed for repair or the like. Further, since the front cover 35 and the back cover 36 can be securely attached to the frame body 22, the shielding property is improved.

図6(a)は、本実施の形態における高周波機器21がマザー基板61に伏せて搭載された状態の側面図であり、図6(b)は、同高周波機器21がマザー基板61へ立てて装着された状態の側面図である。そして図6(a)に示すように伏せて装着する場合においては、マザー基板61における高周波機器21の占有面積を小さくでき、結果としてマザー基板61を小型化することもできることとなる。   FIG. 6A is a side view of the state in which the high-frequency device 21 according to the present embodiment is mounted face down on the mother substrate 61, and FIG. 6B shows the high-frequency device 21 standing on the mother substrate 61. It is a side view of the mounted state. In the case where it is mounted face down as shown in FIG. 6A, the occupation area of the high frequency device 21 in the mother board 61 can be reduced, and as a result, the mother board 61 can be reduced in size.

また、基板23には突出部27が設けられているので、この突出部27にも電子部品を実装することが可能となる。従って、基板23の面積を有効に利用することが可能となるので、高周波機器21を小型化できる。そしてこれにより、図6(b)に示したように高周波機器21をマザー基板61へ立てて装着する場合には、マザー基板61上の高さを低くできるという効果を有している。   Further, since the substrate 23 is provided with the protruding portion 27, an electronic component can be mounted on the protruding portion 27 as well. Therefore, since the area of the substrate 23 can be used effectively, the high-frequency device 21 can be reduced in size. As a result, when the high frequency device 21 is mounted on the mother board 61 as shown in FIG. 6B, the height on the mother board 61 can be reduced.

さらに、端子29は端子台28を直線的に貫通しているので、折り曲げ加工などを行う必要はなく、基板23へ挿入すれば容易に基板23に対して略垂直となる。これにより、端子29の位置精度が良好になり、端子29と枠体22外周とが接触し難くなる。従って、端子29と枠体22外周との間の隙間40を小さくできるので、高周波機器21を小型化できる。   Further, since the terminal 29 penetrates the terminal block 28 linearly, it is not necessary to perform a bending process or the like, and if it is inserted into the substrate 23, it is easily perpendicular to the substrate 23. Thereby, the positional accuracy of the terminal 29 becomes good, and it becomes difficult for the terminal 29 and the outer periphery of the frame 22 to contact. Therefore, since the gap 40 between the terminal 29 and the outer periphery of the frame body 22 can be reduced, the high-frequency device 21 can be reduced in size.

ここで枠体22の縦側面には、21mmの間隔で2本のF接栓62がかしめ固定される。一方は、入力用のF接栓62であり、アンテナケーブルが接続され、アンテナに入力された高周波信号が入力される。そして他方は、分配出力用のF接栓62であり、入力された高周波信号が高周波機器21内で分配されて出力される。そして、枠体22において2本のF接栓62の中心近傍には取付け部63が設けられている。この取付け部63には、丸型の突起部64とこの突起部64の中央に設けられたねじ孔65とを有し、この突起部64と枠体22との間は細幅連結部66で連結されている。この細幅連結部66は突起部64に対して互いに反対方向となる位置に2箇所設けられている。そしてF接栓62の中心と突起部64中心と細幅連結部66の幅方向の中心とが一直線に並ぶ。なお本実施の形態において、突起部64の直径は約5.4mmとし、細幅連結部66の幅は2mmとしている。そしてねじ孔65には、バーリングが設けられ、このバーリング孔にはM3ねじが加工される。   Here, two F plugs 62 are caulked and fixed to the vertical side surface of the frame 22 at intervals of 21 mm. One is an F connector 62 for input, to which an antenna cable is connected, and a high frequency signal input to the antenna is input. The other is a distribution output F plug 62, and the input high-frequency signal is distributed and output in the high-frequency device 21. A mounting portion 63 is provided near the center of the two F plugs 62 in the frame body 22. The attachment portion 63 has a round-shaped projection portion 64 and a screw hole 65 provided in the center of the projection portion 64, and a narrow-width connecting portion 66 is provided between the projection portion 64 and the frame body 22. It is connected. The narrow connection portions 66 are provided at two positions in opposite directions with respect to the protrusions 64. The center of the F connector 62, the center of the protrusion 64, and the center of the narrow connecting portion 66 in the width direction are aligned. In the present embodiment, the diameter of the protrusion 64 is about 5.4 mm, and the width of the narrow connection portion 66 is 2 mm. The screw hole 65 is provided with a burring, and an M3 screw is processed in the burring hole.

ここでF接栓62の根元部の直径が11.5mmであり、枠体22の高さが12mmであるので、F接栓62に対応する位置には舌片を設けることができない。そこで、F接栓62側における接栓側舌片67はF接栓62の間となる位置に設けている。そして接栓側舌片67には、突起部64に対応する位置に逃がし部68が設けられ、この逃がし部68の両側には、細幅連結部66の位置に対応して係合部39が設けられる。これによって、F接栓62の配置面側を確りとシールドすることができる。またこのようにすることで、2個のF接栓62間の距離を小さくできるので、小型の高周波機器21を実現できる。   Here, since the diameter of the base portion of the F plug 62 is 11.5 mm and the height of the frame 22 is 12 mm, a tongue piece cannot be provided at a position corresponding to the F plug 62. Therefore, the plug-side tongue 67 on the F plug 62 side is provided at a position between the F plug 62. The plug-side tongue 67 is provided with a relief portion 68 at a position corresponding to the projection portion 64, and an engagement portion 39 is provided on both sides of the relief portion 68 corresponding to the position of the narrow connection portion 66. Provided. Thereby, the arrangement surface side of the F plug 62 can be securely shielded. In addition, since the distance between the two F plugs 62 can be reduced by doing in this way, a small high-frequency device 21 can be realized.

本発明にかかるシールドケースは、小型の高周波機器を実現できるという効果を有し、電子チューナなどシールドが必要な電子機器等に用いるシールドケースとして有用である。   The shield case according to the present invention has an effect that a small high-frequency device can be realized, and is useful as a shield case used for an electronic device such as an electronic tuner that requires a shield.

本発明の一実施の形態におけるシールドケースを用いた高周波機器の要部断面図Sectional drawing of the principal part of the high frequency apparatus using the shield case in one embodiment of this invention 同、高周波機器におけるカバー装着前の上面図The top view of the high-frequency equipment before the cover is installed 同、枠体の横側面図Same side view of the frame 同、高周波機器の横側面図Side view of high-frequency equipment 同、表カバーの断面図Cross section of front cover (a)同、伏せて装着した場合の高周波機器の側面図、(b)同、立てて装着した場合の高周波機器の側面図(A) Side view of the high-frequency device when mounted face down, (b) Side view of the high-frequency device when mounted vertically 従来の高周波機器の断面図Cross-sectional view of conventional high-frequency equipment

符号の説明Explanation of symbols

22 枠体
30 裏側凹部
31 表側凹部
34 係止突起
35 表カバー
36 裏カバー
38 舌片
39 係合部
22 Frame 30 Back side recess 31 Front side recess 34 Locking projection 35 Front cover 36 Back cover 38 Tongue piece 39 Engagement part

Claims (7)

少なくとも一方面が開放された金属製の枠体と、この枠体の開放側を覆う金属製のカバーと、このカバーの外周に設けられた舌片と、この舌片の係合部が係合されるとともに、前記枠体の側面に形成された係止部とを備え、前記枠体の外周には凹部を設けるとともに、前記係止部は前記凹部外周面に設けられたシールドケース。 A metal frame having at least one open surface, a metal cover that covers the open side of the frame, a tongue provided on the outer periphery of the cover, and an engaging portion of the tongue are engaged. And a locking case formed on a side surface of the frame body, a recess provided on the outer periphery of the frame body, and the locking portion provided on the outer peripheral surface of the recess. 凹部の両側端部は、スリットで枠体と分離されるとともに、開放側の反対方向で枠体に連結された請求項1に記載のシールドケース。 The shield case according to claim 1, wherein both end portions of the recess are separated from the frame body by a slit and are connected to the frame body in the opposite direction of the open side. 舌片の幅は、凹部の幅より大きくするとともに、前記凹部をはさむスリットの外側同士の間隔より小さくした請求項2に記載のシールドケース。 The shield case according to claim 2, wherein the width of the tongue piece is larger than the width of the concave portion and smaller than the interval between the outsides of the slits sandwiching the concave portion. 請求項1に記載のシールドケースと、このシールドケース内に設けられた基板と、この基板の裏面側に搭載された電子部品とを有した高周波機器において、枠体の一方の側面における裏面側に設けられた切欠き部と、この切欠き部より枠体の外に突出するように前記基板から延在して設けられた突出部と、この突出部上に配設された端子とを設けた高周波機器。 In a high-frequency device having the shield case according to claim 1, a board provided in the shield case, and an electronic component mounted on the back side of the board, the back side of one side surface of the frame body Provided with a notch provided, a protrusion provided extending from the substrate so as to protrude out of the frame from the notch, and a terminal disposed on the protrusion. High frequency equipment. 凹部は、切欠き部より内方へ折り曲げて、枠体の裏側方向へ突出させるとともに、基板に設けられた孔を貫通してカバーの係合部に係合される請求項4に記載の高周波機器。 5. The high frequency device according to claim 4, wherein the concave portion is bent inward from the cutout portion to protrude in the rear side direction of the frame body and penetrates through a hole provided in the substrate to be engaged with the engaging portion of the cover. machine. 基板の裏面側には集積回路が装着された請求項5に記載の高周波機器。 The high-frequency device according to claim 5, wherein an integrated circuit is mounted on the back side of the substrate. 請求項1に記載のシールドケースと、このシールドケース内に設けられた基板とを有し、この基板の表面上には空芯コイルを含む同調回路を構成し、カバーは前記空芯コイルの搭載側を覆う高周波機器。 A shield case according to claim 1 and a substrate provided in the shield case, a tuning circuit including an air core coil is formed on the surface of the substrate, and a cover is mounted with the air core coil. High-frequency equipment that covers the side.
JP2005331064A 2005-11-16 2005-11-16 Shield case, and radio frequency device using same Pending JP2007141988A (en)

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JP2005331064A JP2007141988A (en) 2005-11-16 2005-11-16 Shield case, and radio frequency device using same

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Application Number Priority Date Filing Date Title
JP2005331064A JP2007141988A (en) 2005-11-16 2005-11-16 Shield case, and radio frequency device using same

Publications (1)

Publication Number Publication Date
JP2007141988A true JP2007141988A (en) 2007-06-07

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JP2005331064A Pending JP2007141988A (en) 2005-11-16 2005-11-16 Shield case, and radio frequency device using same

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016077683A1 (en) * 2014-11-14 2016-05-19 Laird Technologies, Inc. Solderable two piece board level shields

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016077683A1 (en) * 2014-11-14 2016-05-19 Laird Technologies, Inc. Solderable two piece board level shields

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