JP3282650B2 - Ground structure for communication equipment - Google Patents
Ground structure for communication equipmentInfo
- Publication number
- JP3282650B2 JP3282650B2 JP21304595A JP21304595A JP3282650B2 JP 3282650 B2 JP3282650 B2 JP 3282650B2 JP 21304595 A JP21304595 A JP 21304595A JP 21304595 A JP21304595 A JP 21304595A JP 3282650 B2 JP3282650 B2 JP 3282650B2
- Authority
- JP
- Japan
- Prior art keywords
- electric component
- contact portion
- ground plate
- printed circuit
- circuit board
- 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.)
- Expired - Lifetime
Links
Landscapes
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、通信機におけるア
ース構造に係り、特に携帯無線通信機等に適用して最適
なアース構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grounding structure in a communication device, and more particularly to an optimum grounding structure applied to a portable radio communication device and the like.
【0002】[0002]
【従来の技術】図8は従来の携帯無線通信機等における
アース構造を示し、図において、11はアルミダイカス
ト製のシールドカバー、13はプリント基板14に実装
された第1の電気部品(パワーモジュール)、15は第
2の電気部品(BNCレセプタクル)、16はアルミダ
イカスト製のケースであり、2つの電気部品13,15
のグランドの電位を同じにするために、第2の電気部品
15に対してはシールドカバー11にカシメ部18でカ
シメた板金12を密着させ、第1の電気部品13に対し
ては、該第1の電気部品13の背面にネジ止めされた板
金17をシールドカバー11に更にネジ止めして電位を
同じにしていた。2. Description of the Related Art FIG. 8 shows a grounding structure in a conventional portable radio communication device or the like. In FIG. 8, reference numeral 11 denotes a shield cover made of aluminum die-cast, and 13 denotes a first electric component (power module) mounted on a printed circuit board 14. ) And 15 are second electrical components (BNC receptacles), 16 is a case made of aluminum die-cast, and two electrical components 13 and 15 are provided.
In order to make the ground potential the same, the sheet metal 12 caulked by the caulking portion 18 to the shield cover 11 for the second electric component 15 and the first electric component 13 The sheet metal 17 screwed to the back of the first electrical component 13 was further screwed to the shield cover 11 to make the electric potential the same.
【0003】[0003]
【発明が解決しようとする課題】ところが、従来のよう
なアース構造にあっては、板金12をシールドカバー1
1にカシメるという特殊加工が必要となり、また、別に
板金17をネジ止めする等、ネジの本数が増えるため工
数も増え、しかもグランドにおとす板金もそれぞれに分
かれていたため、製品及び組立てのバラツキにより品質
が不安定になる等の欠点があった。However, in a conventional earth structure, the sheet metal 12 is connected to the shield cover 1.
Special processing such as caulking to 1 is required, and the number of screws increases, such as screwing the sheet metal 17 separately. There were drawbacks such as unstable quality.
【0004】なお、電気部品を固定するネジの片方を板
金製のフレームに止めて電位を同じにする構造のものも
あるが、これではネジ止めした際の板金の変形により、
電気部品が緩んでしまうという強度面での欠点がある。Incidentally, there is a structure in which one of the screws for fixing the electric parts is fixed to a sheet metal frame to make the same electric potential. However, in this case, deformation of the sheet metal when the screws are fixed causes a problem.
There is a drawback in terms of strength that the electric parts are loosened.
【0005】本発明の目的は、前記のような従来のアー
ス構造の欠点を解消し、電気部品のアースを容易かつ確
実に行うことができる通信機におけるアース構造を提供
することにある。An object of the present invention is to solve the above-mentioned drawbacks of the conventional grounding structure and to provide a grounding structure for a communication device that can easily and surely ground an electric component.
【0006】[0006]
【課題を解決するための手段】 本発明の通信機におけ
るアース構造は、プリント基板に実装された第1の電気
部品と第2の電気部品にそれぞれ接触する第1の接触部
とバネ性を備えた第2の接触部を有する共通のアース板
が配置され、アース板の第1の接触部は、第1の電気部
品を覆うように配置され、第2の接触部は、第2の電気
部品に対して弾発的に接触させるようにし、アース板を
シールドカバーとケースとの間に押圧固定した構成であ
る。A ground structure in a communication device according to the present invention includes a first contact portion that contacts a first electric component and a second electric component mounted on a printed circuit board, respectively.
Common ground plate having a second contact portion with spring characteristics
Is disposed, and a first contact portion of the ground plate is provided with a first electrical portion.
In is arranged so as to cover the goods, the second contact portion, so as to resiliently contact with a second electrical component, and pressed and fixed to A over scan plates between the shield cover and the casing structure is there.
【0007】この場合、アース板にプリント基板への半
田付け用の脚部を設けてプリント基板に半田付けするよ
うな構成とすることができ、また、この脚部を段階的に
折り曲げて形成することにより、組立時の脚部へのスト
レスを逃がし、第1の電気部品との密着性を向上させる
構成とする。In this case, the ground plate may be provided with legs for soldering to the printed circuit board and soldered to the printed circuit board, and the legs are formed by bending the legs stepwise. With this configuration, stress applied to the legs during assembly is released, and the adhesion to the first electric component is improved.
【0008】[0008]
【発明の実施の形態】 図1〜図5は本発明の通信機に
おけるアース構造を無線通信機に用いた実施例を示し、
図において、1は放熱板を兼ねたアルミダイカスト製の
シールドカバー、3はプリント基板4に実装された第1
の電気部品(パワーモジュール)、5はプリント基板4
に半田付けされる第2の電気部品(BNCレセプタク
ル)である。1 to 5 show an embodiment in which a ground structure in a communication device of the present invention is used in a wireless communication device.
In the drawing, reference numeral 1 denotes a shield cover made of aluminum die-cast which also serves as a heat sink, and 3 denotes a first cover mounted on a printed circuit board 4.
Electrical components (power modules), 5 printed circuit boards 4
Is a second electrical component (BNC receptacle) that is soldered to the second component.
【0009】2は共通のアース板であって、前記第1の
電気部品3と第2の電気部品5にそれぞれ接触する接触
部2a,2bを有し、該アース板2は第1の電気部品3
を覆うと共に第2の電気部品5への接触部2bはバネ性
を有していて該第2の電気部品5に対して弾発的に接触
するようになっており、このアース板2はシールドカバ
ー1に押圧固定される構成とする。Reference numeral 2 denotes a common ground plate having contact portions 2a and 2b for contacting the first electric component 3 and the second electric component 5, respectively. The ground plate 2 is a first electric component. 3
And a contact portion 2b to the second electric component 5 has a spring property so as to resiliently contact the second electric component 5, and the ground plate 2 is a shield. It is configured to be pressed and fixed to the cover 1.
【0010】 図1〜図5の実施例ではアース板2の一
側縁にプリント基板4への半田付け用の脚部2cが4箇
所に設けられており、これをプリント基板4に形成した
挿入穴4aから挿入して半田付けするようになってい
る。また、この脚部2cは2段階に屈曲して形成されて
おり、これによって組立時の脚部2cへのストレスを逃
がし、第1の電気部品3との密着性を向上させるように
してある。In the embodiment shown in FIGS. 1 to 5 , four legs 2 c for soldering to the printed circuit board 4 are provided at one side edge of the ground plate 2. Inserted from the hole 4a and soldered. The leg 2c is formed to be bent in two stages, so that stress on the leg 2c at the time of assembly is released, and the adhesion to the first electric component 3 is improved.
【0011】 次に組立て例を述べると、まず、プリン
ト基板4に実装された第1の電気部品(パワーモジュー
ル)3にアース板2の接触部2aを被せた状態で、該ア
ース板2の脚部2cをプリント基板4に設けられた4箇
所の穴4aに挿入し、プリント基板4の裏面から半田付
けして取り付ける。[0011] To describe the assembly example in the following, first, the first electrical component (power module) 3 mounted on the printed board 4 in a state of covering the contact portions 2a of the ground plate 2, the leg of the earth plate 2 The part 2c is inserted into four holes 4a provided on the printed circuit board 4 and attached by soldering from the back surface of the printed circuit board 4.
【0012】次に、その状態のままケース6に載置し、
その上からシールドカバー1を載置してネジ7で固定す
る。また、第2の電気部品(BNCレセプタクル)5を
ケース6に設けた取付部6aにネジ8で取り付けた後、
プリント基板4に半田付けする。Next, it is placed on the case 6 in that state,
The shield cover 1 is placed from above and fixed with screws 7. After attaching the second electric component (BNC receptacle) 5 to the attaching portion 6a provided on the case 6 with the screw 8,
Solder to the printed circuit board 4.
【0013】このように、アース板2を第1の電気部品
3とシールドカバー1との間に入れてネジ止めすること
により、第1の電気部品3たるパワーモジュールの電気
的、熱的な導通が向上する。また、アース板2には後端
部側を直角に折り曲げて垂直片2dが形成されており、
この垂直片2dの端部に前記接触部2bが形成されてい
るから、この接触部2bが第2の電気部品5たるBNC
レセプタクルをケース6にネジ止めすることにより接触
し、シールドカバー1と第1の電気部品3とを導通させ
る役割を果たしている。As described above, the ground plate 2 is inserted between the first electric component 3 and the shield cover 1 and screwed, so that the power module as the first electric component 3 is electrically and thermally conductive. Is improved. In addition, a vertical piece 2d is formed by bending the rear end portion of the ground plate 2 at a right angle,
Since the contact portion 2b is formed at the end of the vertical piece 2d, the contact portion 2b is connected to the second electric component 5 as BNC.
The receptacle is brought into contact with the case 6 by screwing, and serves to conduct the shield cover 1 and the first electric component 3.
【0014】また、前記接触部2bは垂直状態に形成さ
れているからシールドカバー1の端面に押えられると共
に、第2の電気部品5をケース6に取り付けることで押
えつけられ、バネ効果が増加して第2の電気部品5との
密着性が向上し、確実に導通することができる。これに
より第1の電気部品3(パワーモジュール)と第2の電
気部品5(BNCレセプタクル)のグランドの電位がシ
ールドカバー1と同じになり、電気的性能に大きく寄与
する。また、前記脚部2cは2段階に屈曲して形成され
ており、例えば、この屈曲がないと、図4に示すよう
に、矢示Fのような変歪が生じたりするが、2段階に屈
曲することにより、図5に示すように、シールドカバー
1を載置した際の組立てのバラツキを吸収することがで
きる。Further, since the contact portion 2b is formed in a vertical state, the contact portion 2b is pressed against the end face of the shield cover 1 and is pressed by attaching the second electric component 5 to the case 6, thereby increasing the spring effect. As a result, the adhesion to the second electric component 5 is improved, and conduction can be ensured. As a result, the ground potentials of the first electric component 3 (power module) and the second electric component 5 (BNC receptacle) become the same as those of the shield cover 1, greatly contributing to the electrical performance. Further, the leg 2c is formed to be bent in two stages. For example, if there is no bending, as shown in FIG. By bending, as shown in FIG. 5, it is possible to absorb variations in assembly when the shield cover 1 is placed.
【0015】 図6および図7は他の実施例であり、前
記接触部2bをアース板2と同一平面的に舌片状に形成
したものである。そしてこの接触部2bが第2の電気部
品5に押圧接触するような構成としたものである。FIGS. 6 and 7 show another embodiment, in which the contact portion 2b is formed in the same plane as the ground plate 2 in a tongue shape. The contact portion 2b is configured to be in pressure contact with the second electric component 5.
【0016】 なお、図1〜図5の実施例では第1の電
気部品3としてパワーモジュールを、第2の電気部品5
としてBNCレセプタクルをそれぞれ用いた例で説明し
たが、電気部品はこれらに限らず、他の電気部品やシー
ルド部品、例えば、可変抵抗器やシールドケースであっ
てもよく、また、シールドカバー1は放熱を兼ねたアル
ミダイカストでなく、通常の板金材料を用いてもよいこ
とは勿論である。In the embodiment shown in FIGS. 1 to 5, a power module is used as the first electric component 3 and the second electric component 5 is used as the first electric component 3.
However, the electric parts are not limited to these, and other electric parts and shield parts, such as a variable resistor and a shield case, may be used. It is a matter of course that a normal sheet metal material may be used instead of the aluminum die-casting which also serves as the above.
【0017】[0017]
【発明の効果】本発明に係る通信機におけるアース構造
によれば、 (1)組立てが容易であり、工数削減によるコストダウ
ンができる。 (2)アース用の部材を取り付けるためだけのネジや部
品が不要となり、コストダウンができる。 (3)携帯無線通信機等のように、ケースが小型で狭い
箇所内で導通させる必要があるような場合でも容易に採
用することができる。 (4)共通のアース板で2つの電気部品に接触させてい
るため最短経路で導通させることができ、電気的ロスが
少なく、しかも放熱効果も向上する。 等の効果を奏する。According to the grounding structure of the communication device according to the present invention, (1) the assembling is easy and the cost can be reduced by reducing the number of steps. (2) Screws and parts only for attaching a member for grounding are not required, and cost can be reduced. (3) The case can be easily adopted even in a case where the case is small and needs to be conducted in a narrow place, such as a portable wireless communication device. (4) Since the two electrical components are brought into contact with the common ground plate, electrical conduction can be made in the shortest path, so that electrical loss is small and the heat radiation effect is improved. And so on.
【図1】本発明の通信機におけるアース構造の実施例を
示し、携帯無線通信機に用いた実施例の要部の分解斜視
図。FIG. 1 is an exploded perspective view of a main part of an embodiment used for a portable radio communication device, showing an embodiment of a ground structure in a communication device of the present invention.
【図2】組み込んだ状態の要部の斜視図。FIG. 2 is a perspective view of a main part in an assembled state.
【図3】組み込んだ状態の要部の一部断面平面図。FIG. 3 is a partial cross-sectional plan view of a main part in an assembled state.
【図4】アース板の脚部を屈曲しない場合の不具合を説
明するための側面図。FIG. 4 is a side view for explaining a problem when the leg of the ground plate is not bent.
【図5】脚部を屈曲させた場合の作用を説明するための
側面図。FIG. 5 is a side view for explaining the operation when the leg is bent.
【図6】他の実施例を示す要部の分解斜視図。FIG. 6 is an exploded perspective view of a main part showing another embodiment.
【図7】他の実施例の組み込まれた状態の斜視図。FIG. 7 is a perspective view showing a state where another embodiment is assembled.
【図8】従来の通信機におけるアース構造を示す要部の
斜視図。FIG. 8 is a perspective view of a main part showing a ground structure in a conventional communication device.
1 シールドカバー 2 アース板 2a 第1の電気部品への接触部 2b 第2の電気部品への接触部 2c 脚部 3 第1の電気部品(パワーモジュール) 4 プリント基板 5 第2の電気部品(BNCレセプタクル) 6 ケース REFERENCE SIGNS LIST 1 shield cover 2 ground plate 2a contact portion to first electrical component 2b contact portion to second electrical component 2c leg 3 first electrical component (power module) 4 printed circuit board 5 second electrical component (BNC) Receptacle) 6 cases
Claims (2)
品と第2の電気部品にそれぞれ接触する第1の接触部と
バネ性を備えた第2の接触部を有する共通のアース板が
配置され、前記アース板の前記第1の接触部は、前記第
1の電気部品を覆うように配置され、前記第2の接触部
は、前記第2の電気部品に対して弾発的に接触してお
り、前記アース板はシールドカバーとケースとの間に押
圧固定されていることを特徴とする通信機におけるアー
ス構造。A first contact portion that contacts a first electric component and a second electric component mounted on a printed circuit board, respectively ;
Common ground plate is arranged having a second contact portion having a spring property, the first contact portion of the ground plate, the first
A second contact portion disposed to cover the first electrical component;
, Said has elastically contact with the second electrical component, in the ground plate communicator, characterized in that it is pressed <br/> pressure fixed between the shield cover and the casing Ground structure.
半田付けするための脚部が設けられると共に、前記脚部
が段階的に折り曲げられていることを特徴とする請求項
1記載の通信機におけるアース構造。The method according to claim 2, wherein said ground plate, wherein with legs for soldering to the printed circuit board is provided, the communication device according to claim 1, wherein the leg portion is characterized by being bent stepwise Ground structure at
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21304595A JP3282650B2 (en) | 1995-07-31 | 1995-07-31 | Ground structure for communication equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21304595A JP3282650B2 (en) | 1995-07-31 | 1995-07-31 | Ground structure for communication equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0945391A JPH0945391A (en) | 1997-02-14 |
JP3282650B2 true JP3282650B2 (en) | 2002-05-20 |
Family
ID=16632614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21304595A Expired - Lifetime JP3282650B2 (en) | 1995-07-31 | 1995-07-31 | Ground structure for communication equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3282650B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102738749A (en) * | 2012-07-23 | 2012-10-17 | 辽宁省电力有限公司辽阳供电公司 | Anti-shifting composite wire shakeproof hammer |
-
1995
- 1995-07-31 JP JP21304595A patent/JP3282650B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0945391A (en) | 1997-02-14 |
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