JPH0523580U - Grounding structure of electronic circuit board - Google Patents
Grounding structure of electronic circuit boardInfo
- Publication number
- JPH0523580U JPH0523580U JP7875791U JP7875791U JPH0523580U JP H0523580 U JPH0523580 U JP H0523580U JP 7875791 U JP7875791 U JP 7875791U JP 7875791 U JP7875791 U JP 7875791U JP H0523580 U JPH0523580 U JP H0523580U
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- Prior art keywords
- electronic circuit
- circuit board
- screw
- mounting
- surface pattern
- Prior art date
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Abstract
(57)【要約】
【目的】 アース線を不要とする電子回路基板１１の接
地構造を得ることを目的としている。
【構成】 導電性筐体（１０）に設けた取付金具（１
２）に電子回路基板（１１）が頭部（１３ａ）とねじ部
（１３ｂ）とを有するねじ（１３）により取り付けら
れ、電子回路基板（１１）におけるの実装面パターン
（１４）と同半田面パターン（１５）との何れか一方が
取付金具（１２）に接触し、他方がねじ（１３）の頭部
（１３ａ）に接触してねじ部（１３ｂ）が取付金具（１
２）とはスペーサ（１９）を介して絶縁された導電性金
具（１８）にねじ込まれている。
(57) [Summary] [Purpose] The purpose is to obtain a grounding structure for the electronic circuit board 11 that does not require a ground wire. [Structure] A mounting bracket (1) provided on a conductive casing (10)
The electronic circuit board (11) is attached to 2) by a screw (13) having a head portion (13a) and a screw portion (13b), and the same solder surface as the mounting surface pattern (14) of the electronic circuit board (11). One of the patterns (15) contacts the fitting (12), the other contacts the head (13a) of the screw (13), and the threaded portion (13b) touches the fitting (1).
2) is screwed into a conductive metal fitting (18) insulated via a spacer (19).
Description
【０００１】[0001]
この考案は、２種類の独立した接地が必要な場合の電子回路基板の接地構造に 関するものである。 The present invention relates to a grounding structure for an electronic circuit board when two types of independent grounding are required.
【０００２】[0002]
図６は、従来のボタン電話主装置におけるオプションユニットを構成する電子 回路基板の接地構造を示す。図において、（１）は、オプションユニットを構成 する複数の電子回路基板であり、この各電子回路基板（１）は筐体（２）に設け られた取付部（３）及び（４）にねじ（５）により取り付けられている。（６） 及び（７）は共にアース線で、これら二つのアース線（６）及び（７）は、それ ぞれ別々に各電子回路基板（１）相互間で接続されて、その各末端部が相互に独 立して接地されている。上記各アース線（６）及び（７）は、ねじ（８）及び（ ９）により、電子回路基板（１）に実装したねじ端子にそれぞれ固定され、電子 回路基板（１）上の電子部品に対する電子的なアース及び電磁的なアースという ２種類のアース対策のために機能している。 FIG. 6 shows a grounding structure of an electronic circuit board that constitutes an option unit in a conventional key telephone main unit. In the figure, (1) is a plurality of electronic circuit boards constituting an optional unit, and each electronic circuit board (1) is attached to a mounting portion (3) and (4) provided on a housing (2) with screws. It is attached by (5). Both (6) and (7) are ground wires, and these two ground wires (6) and (7) are separately connected between the respective electronic circuit boards (1) and their respective end portions are connected. Are independently grounded. The ground wires (6) and (7) are fixed to the screw terminals mounted on the electronic circuit board (1) by screws (8) and (9), respectively, and are connected to the electronic components on the electronic circuit board (1). It functions as two types of grounding measures: electronic grounding and electromagnetic grounding.
【０００３】 従来の電子回路基板の接地構造は上記のように構成され、オプションユニット を構成する電子回路基板（１）はねじ（５）により筐体（２）の取付部（３）及 び（４）に取り付けられる。一方、アース線（６）及び（７）は、ねじ（８）及 び（９）により電子回路基板（１）に実装したねじ端子に一端が導通して固定さ れて他端が接地され、電子回路基板（１）上の電子回路に対する電子的なアース 及び電磁的なアースのために機能する。The conventional grounding structure of the electronic circuit board is configured as described above, and the electronic circuit board (1) forming the option unit is attached to the mounting portion (3) and (() of the housing (2) by the screw (5). 4) is attached. On the other hand, the ground wires (6) and (7) are fixed to the screw terminals mounted on the electronic circuit board (1) by screws (8) and (9) so that one ends are electrically connected and the other ends are grounded. It functions as an electronic ground and an electromagnetic ground for the electronic circuit on the electronic circuit board (1).
【０００４】[0004]
従来の電子回路基板の接地構造は以上のように構成されているので、アース線 を電子回路基板に接続するという煩雑な作業が必要となり、またアース線を固定 する専用のねじ端子を実装しなければならず、しかもこのねじ端子はアース線の 長さを考慮すると実装位置が制限されて電子回路基板上の電子部品の設計自由度 が阻害されるなどの問題点があった。 Since the conventional grounding structure of the electronic circuit board is configured as described above, the complicated work of connecting the ground wire to the electronic circuit board is required, and a dedicated screw terminal for fixing the ground wire must be mounted. Moreover, this screw terminal has a problem in that the mounting position is limited in consideration of the length of the ground wire, and the degree of freedom in designing electronic components on the electronic circuit board is impaired.
【０００５】 この考案は上記のような問題点を解消するためになされたもので、アース線を 不要とする電子回路基板の接地構造を得ることを目的としている。The present invention has been made to solve the above problems, and an object thereof is to obtain a grounding structure for an electronic circuit board that does not require a ground wire.
【０００６】[0006]
この考案に係わる電子回路基板の接地構造は、導電性材料からなる筐体に、電 子回路基板が頭部と結合部とを有する導電性材料からなる締結具により取り付け られ、前記電子回路基板上の実装面パターンと同半田面パターンとの何れか一方 が前記筐体の取付部に接触し、他方が前記締結具の頭部に接触した状態でこの締 結具が電子回路基板及び取付部を貫通し、前記締結具の結合部が前記取付部とは スペーサを介して絶縁された導電性金具に結合されてなる構成としたものである 。 The grounding structure of an electronic circuit board according to the present invention is such that the electronic circuit board is attached to a casing made of a conductive material by a fastener made of a conductive material having a head and a coupling portion. With one of the mounting surface pattern and the same solder surface pattern contacting the mounting portion of the casing and the other contacting the head of the fastener, the fastener secures the electronic circuit board and the mounting portion. The connecting part of the fastener penetrates through and is connected to an electrically conductive metal member that is insulated from the mounting part through a spacer.
【０００７】[0007]
この考案における電子回路基板の接地構造は、電子回路基板上の実装面パター ンと同半田面パターンとの何れか一方が導電性筐体の取付部に接触し、他方が導 電性締結具の頭部に接触してその結合部が取付部とはスペーサを介して絶縁され た導電性金具に結合される構成としたので、電子回路部品の２種類のアースのう ち一方は取付部に接地され、他方は締結具を介して導電性金具に接地されて、ア ース線を不要とする。 In the grounding structure of the electronic circuit board according to the present invention, one of the mounting surface pattern and the solder surface pattern on the electronic circuit board is in contact with the mounting portion of the conductive casing, and the other is the conductive fastener. Since the contact part is connected to the head part and the connecting part is connected to the conductive metal part which is insulated from the mounting part via a spacer, one of the two types of grounding of electronic circuit parts is grounded to the mounting part. The other is grounded to the conductive metal fittings via fasteners, eliminating the need for ground wires.
【０００８】[0008]
以下、この考案の一実施例を図について説明する。図１（ａ）は、この考案の 一実施例のボタン電話主装置におけるオプションユニットを構成する電子回路基 板の接地構造を示す断面図、図１（ｂ）は図１（ａ）の側面図、図２は図１（ａ ）の要部の拡大された断面図である。図において、（１０）はこのボタン電話主 装置の導電性材料からなる筐体で、（１１）は電子回路基板であり、この電子回 路基板（１１）は図１（ｂ）に示すように複数枚並べて筐体（１０）に取り付け られている。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a sectional view showing a grounding structure of an electronic circuit board which constitutes an option unit in a main unit of a button telephone according to an embodiment of the present invention, and FIG. 1 (b) is a side view of FIG. 1 (a). FIG. 2 is an enlarged cross-sectional view of the main part of FIG. In the figure, (10) is a housing made of a conductive material for the main unit of the button telephone, (11) is an electronic circuit board, and this electronic circuit board (11) is as shown in FIG. 1 (b). A plurality of sheets are arranged side by side and attached to the housing (10).
【０００９】 （１２）は筐体（１０）にねじ（２１）により固定された導電性材料からなる 取付部としての取付金具で、この取付金具（１２）は、筐体（１０）への固定部 （１２ａ）と電子回路基板（１１）の上部側に対する取付部（１２ｂ）とを有し 、複数枚の電子回路基板（１１）の配列方向（図１（ｂ）中で左右方向）に延長 されている。取付金具（１２）の取付部（１２ａ）には、電子回路基板（１１） が導電性材料からなる締結具としてのねじ（１３）により取り付けられている。 ねじ（１３）は、頭部（１３ａ）と結合部としてのねじ部（１３ｂ）とを備えて いる。電子回路基板（１１）は、ねじ（１３）が挿入される挿入孔（１１ａ）が 形成され、この挿入孔（１１ａ）周囲の表裏両面には、図３（ａ）及び図３（ｂ ）に示すように、実装面パターン（１４）と半田面パターン（１５）とがそれぞ れ形成されている。Reference numeral (12) is a mounting member made of a conductive material and fixed to the housing (10) by a screw (21) as a mounting portion, and the mounting metal fitting (12) is secured to the housing (10). Having a portion (12a) and a mounting portion (12b) for the upper side of the electronic circuit board (11), and extending in the arrangement direction of the plurality of electronic circuit boards (11) (left-right direction in FIG. 1B) Has been done. The electronic circuit board (11) is attached to the attachment portion (12a) of the attachment metal fitting (12) with a screw (13) made of a conductive material as a fastener. The screw (13) has a head portion (13a) and a screw portion (13b) as a connecting portion. The electronic circuit board (11) is formed with an insertion hole (11a) into which the screw (13) is inserted, and the front and back surfaces around the insertion hole (11a) are shown in FIGS. 3 (a) and 3 (b). As shown, the mounting surface pattern (14) and the solder surface pattern (15) are formed respectively.
【００１０】 （１６）は、電子回路基板（１１）の下部側に対する取付金具で、ねじ（１７ ）により筐体（１０）に固定されている。この取付金具（１６）は、スリット（ １６ａ）が形成されており、このスリット（１６ａ）に電子回路基板（１１）の 下端部の突出部（１１ｂ）が挿入される。Reference numeral (16) is a metal fitting for the lower side of the electronic circuit board (11), which is fixed to the housing (10) with a screw (17). The fitting (16) has a slit (16a) formed therein, and the protrusion (11b) at the lower end of the electronic circuit board (11) is inserted into the slit (16a).
【００１１】 電子回路基板（１１）は実装面パターン（１４）がねじ（１３）の頭部（１３ ａ）に接触して導通し、半田面パターン（１５）が取付金具（１２）に接触して 導通するようセットされる。（１８）は、ねじ（１３）のねじ部（１３ｂ）がね じ込まれる導電性金具で、この導電性金具（１８）と電子回路基板（１１）の実 装面パターン（１４）とは、ねじ（１３）を介して導通することになる。導電性 金具（１８）は、取付金具（１２）と同様に、複数枚の電子回路基板（１１）の 配列方向に延長されており、筐体（１０）には接触していない。In the electronic circuit board (11), the mounting surface pattern (14) contacts the head (13a) of the screw (13) to conduct electricity, and the solder surface pattern (15) contacts the mounting bracket (12). Are set to conduct. (18) is a conductive metal fitting into which the screw part (13b) of the screw (13) is screwed, and the conductive metal fitting (18) and the mounting surface pattern (14) of the electronic circuit board (11) are It will conduct through the screw (13). The conductive metal fitting (18) is extended in the arrangement direction of the plurality of electronic circuit boards (11) like the mounting metal fitting (12) and is not in contact with the housing (10).
【００１２】 （１９）は、取付金具（１２）と導電性金具（１８）とを絶縁するための樹脂 製スペーサで、ねじ（１３）がその貫通孔（１９ａ）に挿入されている。このス ペーサ（１９）は、図４（ａ）及び図４（ｂ）に示すように、貫通孔（１９ａ） が形成され取付金具（１２）の取付孔（１２ｃ）に一端側が嵌合する円筒部（１ ９ｂ）と、円筒部（１９ｂ）の図中で上下両端に一体成形された一対の脚部（１ ９ｃ）とを備えている。脚部（１９ｃ）は、ねじ（１３）の頭部（１３ａ）側の 端部が取付金具（１２）に接触し、ねじ部（１３ｂ）側が導電性金具（１８）に 設けた係止孔（１８ａ）に挿入されて、突起（１９ｄ）により抜け止めがなされ ている。Reference numeral (19) is a resin spacer for insulating the fitting (12) and the conductive fitting (18), and a screw (13) is inserted into the through hole (19a). As shown in FIGS. 4 (a) and 4 (b), this spacer (19) is a cylinder in which one end side is fitted into the mounting hole (12c) of the mounting bracket (12) in which the through hole (19a) is formed. It is provided with a portion (19b) and a pair of leg portions (19c) integrally formed at upper and lower ends in the figure of the cylindrical portion (19b). The leg portion (19c) has an end portion on the head (13a) side of the screw (13) contacting the mounting metal fitting (12), and a screw hole (13b) side on the conductive metal fitting (18). 18a) and is prevented from coming off by the protrusion (19d).
【００１３】 図５は、図１（ｂ）中で左右両端２カ所での電子回路基板（１１）が介在され ていない部位での取付金具（１２）と導電性金具（１８）との固定構造を示して いる。ここでは、絶縁ワッシャ（２０）をねじ（１３）の頭部（１３ａ）と取付 金具（１２）との間に介装することで、頭部（１３ａ）と取付金具（１２）との 接触を避け、取付金具（１２）と導電性金具（１８）との絶縁を図っている。FIG. 5 is a fixing structure of the mounting metal fittings (12) and the conductive metal fittings (18) at the positions where the electronic circuit board (11) is not interposed at the two left and right ends in FIG. 1 (b). Is shown. Here, the insulating washer (20) is interposed between the head (13a) of the screw (13) and the fitting (12), so that the head (13a) and the fitting (12) are brought into contact with each other. Avoiding this, the mounting metal fitting (12) and the conductive metal fitting (18) are insulated.
【００１４】 上記のように構成された電子回路基板の接地構造においては、電子回路基板（ １１）の実装面パターン（１４）が、ねじ（１３）の頭部（１３ａ）に接触する ことで、ねじ（１３）がねじ込まれている導電性金具（１８）に導通して接地さ れ、一方半田面パターン（１５）は、取付金具（１２）に接触して導通されて接 地される。取付金具（１２）と導電性金具（１８）とは、樹脂製スペーサ（１９ ）により絶縁され、また図５のように電子回路基板（１１）が介在されていない 部位では、樹脂製スペーサ（１９）と絶縁ワッシャ（２０）とにより絶縁されて 、電子回路基板（１１）に対する実装面パターン（１４）及び半田面パターン（ １５）からの２種類の、例えば電子的アース及び電磁的アースが達成できる。In the grounding structure of the electronic circuit board configured as described above, the mounting surface pattern (14) of the electronic circuit board (11) contacts the head (13a) of the screw (13), The screw (13) is electrically connected to the grounded conductive metal fitting (18), and the solder surface pattern (15) is brought into contact with the metal fitting (12) to be electrically conductive and grounded. The metal fitting (12) and the conductive metal fitting (18) are insulated from each other by a resin spacer (19), and the resin spacer (19) is provided at a portion where the electronic circuit board (11) is not interposed as shown in FIG. ) And an insulating washer (20) for insulation, so that two types, for example, an electronic ground and an electromagnetic ground from the mounting surface pattern (14) and the solder surface pattern (15) for the electronic circuit board (11) can be achieved. ..
【００１５】 このような接地構造は、電子回路基板（１１）を筐体（１０）側に固定するた めのねじ（１３）を用いて２種類の接地を行うようにしており、このような構造 とすることで、アース線を電子回路基板（１１）に接続するという煩雑な作業が 不要となり、またアース線を固定する専用のねじ端子を実装する必要もなく、し かもねじ端子が不要であることから電子回路基板（１１）上の電子部品の設計自 由度が高まる。In such a grounding structure, two kinds of grounding are performed by using a screw (13) for fixing the electronic circuit board (11) to the housing (10) side. The structure eliminates the troublesome work of connecting the ground wire to the electronic circuit board (11), does not need to mount a dedicated screw terminal for fixing the ground wire, and does not need a screw terminal. This increases the degree of freedom in designing electronic components on the electronic circuit board (11).
【００１６】[0016]
以上のように、この考案によれば、電子回路基板におけるの実装面パターンと 同半田面パターンとの何れか一方が導電性筐体の取付部に接触し、他方が導電性 締結具の頭部に接触してその結合部が取付部とはスペーサを介して絶縁された導 電性金具に結合される構成としたので、電子回路部品の２種類の接地は、電子回 路基板を導電性筐体に取り付けるための導電性締結具を介してなされてアース線 が不要となり、アース線を電子回路基板に接続するという煩雑な作業、及びアー ス線を固定する専用のねじ端子を実装する必要がなく、しかもアース専用のねじ 端子が不要であることから電子回路基板上の電子部品の設計自由度が高まる電子 回路基板の接地構造が得られるという効果がある。 As described above, according to the present invention, one of the mounting surface pattern and the solder surface pattern of the electronic circuit board contacts the mounting portion of the conductive casing, and the other one is the head portion of the conductive fastener. Since the connecting portion is connected to the conductive metal fitting that is insulated from the mounting portion via the spacer, the two types of grounding of the electronic circuit component are performed by connecting the electronic circuit board to the conductive casing. Since the grounding wire is not required because it is made through a conductive fastener for attaching to the body, it is necessary to carry out the complicated work of connecting the grounding wire to the electronic circuit board and mounting a dedicated screw terminal for fixing the grounding wire. In addition, since there is no need for a screw terminal dedicated to grounding, there is an effect that a grounding structure for an electronic circuit board can be obtained which increases the degree of freedom in designing electronic components on the electronic circuit board.
【図１】（ａ）はこの考案の一実施例を示す接地構造の
断面図、（ｂ）は（ａ）の側面図である。1A is a sectional view of a grounding structure showing an embodiment of the present invention, and FIG. 1B is a side view of FIG. 1A.
【図２】図１（ａ）の要部の拡大された断面図である。FIG. 2 is an enlarged cross-sectional view of a main part of FIG.
【図３】（ａ）は図１で使用される電子回路基板におけ
る実装面パターンが形成された部位を示す説明図、
（ｂ）は同半田面パターンが形成された部位を示す説明
図である。3A is an explanatory view showing a portion where a mounting surface pattern is formed in the electronic circuit board used in FIG.
(B) is an explanatory view showing a portion where the solder surface pattern is formed.
【図４】（ａ）は図１で使用される樹脂製スペーサの正
面図、（ｂ）は（ａ）の側面図である。4A is a front view of the resin spacer used in FIG. 1, and FIG. 4B is a side view of FIG.
【図５】図１における電子回路基板が介在されていない
部位での拡大された断面図である。5 is an enlarged cross-sectional view of a portion of FIG. 1 where an electronic circuit board is not interposed.
【図６】従来の接地構造を示す説明図である。FIG. 6 is an explanatory view showing a conventional grounding structure.
【符号の説明】 １０ 導電性筐体 １１ 電子回路基板 １１ａ 挿入孔 １１ｂ 突出部 １２ 取付金具（取付部） １２ａ 固定部 １２ｂ 取付部 １２ｃ 取付孔 １３ ねじ（導電性締結具） １３ａ 頭部 １３ｂ ねじ部（結合部） １４ 実装面パターン １５ 半田面パターン １６ 取付金具 １６ａ スリット １７ ねじ １８ 導電性金具 １９ スペーサ １９ａ 貫通孔 １９ｂ 円筒部 １９ｃ 脚部 １９ｄ 突起 ２０ 絶縁ワッシャ ２１ ねじ[Explanation of reference numerals] 10 conductive housing 11 electronic circuit board 11a insertion hole 11b protruding portion 12 mounting bracket (mounting portion) 12a fixing portion 12b mounting portion 12c mounting hole 13 screw (conductive fastener) 13a head portion 13b screw portion (Coupling part) 14 Mounting surface pattern 15 Solder surface pattern 16 Mounting metal fitting 16a Slit 17 Screw 18 Conductive metal fitting 19 Spacer 19a Through hole 19b Cylindrical part 19c Leg part 19d Protrusion 20 Insulation washer 21 Screw
Claims (1)
板が頭部と結合部とを有する導電性材料からなる締結具
により取り付けられ、前記電子回路基板上の実装面パタ
ーンと同半田面パターンとの何れか一方が前記筐体の取
付部に接触し、他方が前記締結具の頭部に接触した状態
でこの締結具が電子回路基板及び取付部を貫通し、前記
締結具の結合部が前記取付部とはスペーサを介して絶縁
された導電性金具に結合されてなることを特徴とする電
子回路基板の接地構造。1. An electronic circuit board is attached to a casing made of a conductive material by a fastener made of a conductive material having a head portion and a coupling portion, and the same solder surface as the mounting surface pattern on the electronic circuit board. The fastener penetrates the electronic circuit board and the mounting portion in a state where one of the patterns is in contact with the mounting portion of the housing and the other is in contact with the head of the fastener, and the coupling portion of the fastener is The grounding structure of the electronic circuit board is characterized in that the mounting portion is connected to a conductive metal member which is insulated via a spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7875791U JPH0523580U (en) | 1991-09-04 | 1991-09-04 | Grounding structure of electronic circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7875791U JPH0523580U (en) | 1991-09-04 | 1991-09-04 | Grounding structure of electronic circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0523580U true JPH0523580U (en) | 1993-03-26 |
Family
ID=13670772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7875791U Pending JPH0523580U (en) | 1991-09-04 | 1991-09-04 | Grounding structure of electronic circuit board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031152A (en) * | 2014-07-25 | 2016-03-07 | シャープ株式会社 | refrigerator |
-
1991
- 1991-09-04 JP JP7875791U patent/JPH0523580U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031152A (en) * | 2014-07-25 | 2016-03-07 | シャープ株式会社 | refrigerator |
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