JP2008305868A - Fixing structure for circuit board - Google Patents

Fixing structure for circuit board Download PDF

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JP2008305868A
JP2008305868A JP2007149785A JP2007149785A JP2008305868A JP 2008305868 A JP2008305868 A JP 2008305868A JP 2007149785 A JP2007149785 A JP 2007149785A JP 2007149785 A JP2007149785 A JP 2007149785A JP 2008305868 A JP2008305868 A JP 2008305868A
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circuit board
chassis
screw
surface portion
fixed
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JP2007149785A
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Natsuko Miyato
夏子 宮戸
Kazuharu Kitatani
一治 北谷
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TDK Lambda Corp
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TDK Lambda Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure for a circuit board capable of fixing the circuit board to a chassis with the orientation changed as needed. <P>SOLUTION: This fixing structure for the circuit board comprising the chassis 11 having a bottom face 12 and a side face 13, and the circuit board 1 to be fixed to the bottom face 12 side is provided with screws 15 for fixing the circuit board 1 to the bottom face 12 side, screw threading holes 4 provided in the circuit board 1, and female screw portions 14 as the screw receiving portions provided in the bottom face 12 side into which the screws 15 are fixed. Because the screw threading holes 4 are provided at the positions of point symmetry with respect to about the center of the circuit board 1, the circuit board 1 can be mounted by screwing the screws 15 into the female screw portions 14 through the screw threading holes 4 even in a state wherein the orientation of the circuit board 1 is changed by rotating it by 180 degrees, and the circuit board 1 can be fixed to the chassis 11 to be adapted to the input/output orientation, etc., of the circuit board 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、底面部と側面部とを有するシャーシと、前記底面部側に固定される回路基板とを備えた回路基板の固定構造に関する。   The present invention relates to a circuit board fixing structure including a chassis having a bottom surface portion and a side surface portion, and a circuit board fixed to the bottom surface portion side.

従来、回路基板の固定構造として、例えば特許文献１には、回路基板を組み付けるシャーシは底面と側面とを有し、放熱性に優れたアルミニームにより形成され、前記底面にネジ受部たる固定片を設け、回路基板に挿通したネジを前記固定片に螺合することにより、前記底面に前記回路基板を固定するものがあり、また、特許文献２には、回路基板と電子機器の筐体板金部との間にスペーサを配置し、前記回路基板と前記筐体板金部とをネジにより取付固定するものがある。   Conventionally, as a circuit board fixing structure, for example, in Patent Document 1, a chassis for assembling a circuit board has a bottom surface and a side surface, and is formed of an aluminum neat having excellent heat dissipation, and a fixing piece serving as a screw receiving portion on the bottom surface. And fixing the circuit board to the bottom surface by screwing the screw inserted through the circuit board into the fixing piece, and Patent Document 2 discloses a case metal plate of the circuit board and the electronic device. There is a type in which a spacer is arranged between the circuit board and the circuit board and the housing sheet metal part.

また、特許文献３には、円柱状の鉄鋼棒を孔開けし、タップ切り加工により孔の内径部に雌ネジが形成された円筒体の下端部を、圧入等の手段によりシャーシに固定し、ネジ受部たる前記円筒体の上端部に、回路基板の取付孔を合わせて上方からネジ部材を螺合結合することにより、基板を一定の間隔を保ってシャーシに取り付けているものがあり、さらに、前記特許文献３には、シャーシに開口を形成し、ネジ孔を設けた台座部と、台座部の下側に配した一対の脚部とからなるスペーサ部材を、シャーシの上方から下方に向けて挿入させて装着し、その後、スペーサ部材のネジ孔に基板の取付孔を合わせて上方からタッピングネジを螺合結合することにより、基板を一定の間隔を保ってシャーシに取り付けているものがある。
特開平１０−２９００８１号公報 特開２００３−１２４６６７号公報 特開２００２−２９００７５号公報 Further, in Patent Document 3, a cylindrical steel rod is drilled, and a lower end portion of a cylindrical body in which a female screw is formed on an inner diameter portion of the hole by tapping is fixed to the chassis by means such as press fitting, There is one in which the board is attached to the chassis at a constant interval by aligning the mounting hole of the circuit board with the upper end of the cylindrical body that is the screw receiving part and screwing the screw member from above. In Patent Document 3, a spacer member formed of a pedestal having an opening in the chassis and provided with a screw hole and a pair of legs disposed on the lower side of the pedestal is directed downward from above the chassis. After that, the board is attached to the chassis at a constant interval by aligning the mounting hole of the board with the screw hole of the spacer member and screwing the tapping screw from above. .
JP-A-10-290081 JP 2003-124667 A JP 2002-290075 A

上記のように回路基板の固定構造としては、回路基板に穿設した孔にネジを挿通し、このネジによりシャーシの底面部側に回路基板が取り付けられる。   As described above, as a circuit board fixing structure, a screw is inserted into a hole formed in the circuit board, and the circuit board is attached to the bottom surface side of the chassis by the screw.

ところで、電源に用いられる回路基板では、該回路基板の長手方向の一側を入力側、他側を出力側とする場合が多く、シャーシに対する回路基板の向きが製品により決まっているため、回路基板を逆向きにしてシャーシに固定することができない。   By the way, in a circuit board used for a power supply, in many cases, one side in the longitudinal direction of the circuit board is an input side and the other side is an output side, and the direction of the circuit board relative to the chassis is determined by the product. It cannot be fixed to the chassis in the reverse direction.

そこで、図６に示すように、電源用の回路基板101を、底面部102Ａと側面部102Ｂを有するシャーシ102により取り付ける際、回路基板101の入力側103及び出力側104の位置と、電気機器側の入力線105及び出力線106の引廻し方向とが反対の場合、側面部102Ａを電気機器の筐体107内面に沿って取り付けると、入力線105と出力線106を交差させる必要が生じ、線材が長くなり、長い線材を用いることにより、ノイズが発生し易くなったり、その線材が風の流れを妨げて熱環境を悪化させてしまったりするなどの悪影響を及ぼす場合がある。また、配線が長くなると共に複雑になることによりコストアップを招き易い。   Therefore, as shown in FIG. 6, when the circuit board 101 for power supply is attached by the chassis 102 having the bottom surface portion 102A and the side surface portion 102B, the positions of the input side 103 and the output side 104 of the circuit board 101, and the electric equipment side When the input wire 105 and the output wire 106 are in opposite directions, if the side surface portion 102A is attached along the inner surface of the casing 107 of the electric device, it is necessary to cross the input wire 105 and the output wire 106. When a long wire is used, noise may be easily generated, or the wire may interfere with the flow of wind and deteriorate the thermal environment. In addition, the wiring becomes long and complicated, which tends to increase the cost.

一方、図７に示すように、回路基板101の向きを変えて取り付けると、シャーシ102を筐体107に固定するポイントが減り、強度が低下してしまう。特に、図８に示すように、電源用の回路基板101を縦向きにする場合、図８（Ａ）では下方からのネジ108止めのみとなるのに対して、図８（Ｂ）では下方及び側方からネジ108を止めることができ、取付強度に大きな差が出てしまう。また、図７の場合では側面部102Ｂが筐体107の内面と離間し、図８（Ａ）の場合では底面部102Ａが筐体107の内面と離間するため、シャーシ102から筐体107に伝わる熱が小さくなり、回路基板101の熱が逃げ難くなる。   On the other hand, as shown in FIG. 7, when the circuit board 101 is mounted in a different direction, the number of points for fixing the chassis 102 to the housing 107 is reduced, and the strength is lowered. In particular, as shown in FIG. 8, when the circuit board 101 for power supply is oriented vertically, only the screw 108 from below is fixed in FIG. 8A, whereas in FIG. The screw 108 can be stopped from the side, resulting in a large difference in mounting strength. In the case of FIG. 7, the side surface portion 102B is separated from the inner surface of the housing 107, and in the case of FIG. 8A, the bottom surface portion 102A is separated from the inner surface of the housing 107. The heat becomes small and the heat of the circuit board 101 becomes difficult to escape.

本発明は上記の各問題点に着目してなされたもので、必要に応じて回路基板の向きを変えてシャーシに固定することができる回路基板の固定構造を提供することを、その目的とする。   The present invention has been made paying attention to each of the above problems, and an object thereof is to provide a circuit board fixing structure that can be fixed to a chassis by changing the direction of the circuit board as necessary. .

本発明は、上記目的を達成するために、底面部と側面部とを有するシャーシと、前記底面部側に固定される回路基板とを備えた回路基板の固定構造において、前記回路基板を前記底面部側に固定するネジと、前記回路基板に設けられたネジ挿通孔と、前記底面部側に設けられ前記ネジを固定するネジ受部とを備え、前記ネジ挿通孔が前記回路基板のほぼ中心に対して点対称の位置に設けられている構成としている。   In order to achieve the above object, the present invention provides a circuit board fixing structure comprising a chassis having a bottom surface portion and a side surface portion, and a circuit board fixed to the bottom surface portion side. And a screw insertion hole provided in the circuit board, and a screw receiving part provided on the bottom surface side for fixing the screw, wherein the screw insertion hole is substantially at the center of the circuit board. Are provided in a point-symmetrical position.

また、本発明は、上記目的を達成するために、前記回路基板の一側と他側には、入力部と出力部が設けられているものである。   In order to achieve the above object, according to the present invention, an input unit and an output unit are provided on one side and the other side of the circuit board.

さらに、本発明は、上記目的を達成するために、電気機器の筐体を備え、この筐体内に前記シャーシを収納し、このシャーシは、前記底面部と前記側面部をそれぞれ前記筐体の内面側にして固定されているものである。   Furthermore, in order to achieve the above object, the present invention includes a housing for an electric device, and the chassis is accommodated in the housing. The chassis has the bottom surface portion and the side surface portion respectively provided on the inner surface of the housing. It is fixed on the side.

請求項１の発明によれば、前記ネジ挿通孔が前記回路基板のほぼ中心に対して点対称の位置に設けられているため、回路基板を１８０度回転して向きを変えた状態でも、ネジ挿通孔からネジ受部にネジを螺合して回路基板を取り付けることができ、回路基板の向きを使用条件に合わせてシャーシに固定することができる。   According to the first aspect of the present invention, since the screw insertion hole is provided at a point-symmetrical position with respect to the substantially center of the circuit board, the screw is inserted even when the circuit board is rotated 180 degrees and changed its direction. The circuit board can be attached by screwing the screw into the screw receiving portion from the insertion hole, and the direction of the circuit board can be fixed to the chassis according to the use conditions.

請求項２の発明によれば、入力部と出力部の使用条件に合わせた向きに回路基板を固定することができる。   According to invention of Claim 2, a circuit board can be fixed to the direction according to the use condition of an input part and an output part.

請求項３の発明によれば、底面部と側面部をそれぞれ筐体の内面側にして固定することにより、回路基板で発生した熱を筐体側に逃がし易くなる。   According to the invention of claim 3, by fixing the bottom surface portion and the side surface portion to the inner surface side of the housing, the heat generated in the circuit board can be easily released to the housing side.

以下、本発明における回路基板の固定構造の好ましい実施形態について、添付図面を参照しながら詳細に説明する。   Hereinafter, a preferred embodiment of a circuit board fixing structure according to the present invention will be described in detail with reference to the accompanying drawings.

図１〜図４は、本実施例で提案する回路基板の固定構造を示したものである。同図に示すように、１は基板型電源を構成する回路基板であり、図示しない電子部品を実装し、平面略長方形形状をなす。前記回路基板１は、その長手方向一側に電気的な入力部２を有すると共に、その長手方向他側に電気的な出力部３を有し、それら入力部２及び出力部３としてはコネクタなどが例示される。   1 to 4 show a circuit board fixing structure proposed in this embodiment. As shown in the figure, reference numeral 1 denotes a circuit board constituting a board-type power supply, which is mounted with an electronic component (not shown) and has a substantially rectangular planar shape. The circuit board 1 has an electrical input unit 2 on one side in the longitudinal direction and an electrical output unit 3 on the other side in the longitudinal direction. The input unit 2 and the output unit 3 include connectors and the like. Is exemplified.

また、前記回路基板１には、その長手方向一側及び他側の幅方向両側の４箇所と、その長手方向中央の幅方向両側の２箇所とに、それぞれネジ挿通孔４が穿設されており、これら６個のネジ挿通孔４は、回路基板１の中心点５に対して点対象の位置に設けられている。   The circuit board 1 has screw insertion holes 4 formed at four locations on one side in the longitudinal direction and on both sides in the width direction and at two locations on both sides in the width direction at the center in the longitudinal direction. These six screw insertion holes 4 are provided at point target positions with respect to the center point 5 of the circuit board 1.

１１はシャーシであり、このシャーシ１１は、前記回路基板１を取り付ける底面部１２と、この底面部１２の幅方向一側を上方に屈曲した側面部１３とを一体に有し、放熱性に優れたアルミニウムなどにより形成されている。   Reference numeral 11 denotes a chassis. The chassis 11 integrally has a bottom surface portion 12 to which the circuit board 1 is attached and a side surface portion 13 that is bent upward on one side in the width direction of the bottom surface portion 12 and has excellent heat dissipation. It is made of aluminum.

前記底面部１２には、前記ネジ挿通孔４に対応してネジ受部たる雌螺子部１４が穿設され、この雌螺子部１４は底面部１２にバーニング加工を施した孔に形成されている。そして、前記回路基板１の下面と底面部１２の上面との間に、筒状のスペーサ１７を挟んだ状態で、回路基板１の上面側からネジ挿通孔４にネジ１５を挿通し、このネジ１５を前記雌螺子部１４に螺合することにより、シャーシ１１の底面部１２に回路基板１が取り付けられる。   The bottom surface portion 12 is formed with a female screw portion 14 that is a screw receiving portion corresponding to the screw insertion hole 4, and the female screw portion 14 is formed in a hole in which the bottom surface portion 12 is burned. . Then, a screw 15 is inserted into the screw insertion hole 4 from the upper surface side of the circuit board 1 with a cylindrical spacer 17 sandwiched between the lower surface of the circuit board 1 and the upper surface of the bottom surface portion 12. The circuit board 1 is attached to the bottom surface portion 12 of the chassis 11 by screwing 15 into the female screw portion 14.

また、回路基板１をシャーシ１１に固定した状態で、シャーシ１１の上面と前記側面部１３に対向する側面側を閉塞するカバー１６を備え、このカバー１６は前記シャーシ１１に着脱可能に設けられる。   In addition, a cover 16 that closes the upper surface of the chassis 11 and the side surface facing the side surface portion 13 in a state where the circuit board 1 is fixed to the chassis 11 is provided. The cover 16 is detachably provided on the chassis 11.

２１は電気機器の筐体であり、この筐体２１は、前記回路基板１以外にも、図示しない電気機器を内蔵する。そして、前記筐体２１の側面２２の内面２２Ａに、前記側面部１３の外面を沿わせると共に、前記筐体２１の底面２３の内面２３Ａに、前記底面部１２の外面を沿わせるようにして、該筐体２１にシャーシ１１を固定する。この場合、側面２２と側面部１３とをネジ（図示せず）などの取付手段により固定し、底面２３と底面部１２とをネジ（図示せず）などの取付手段により固定することができる。   Reference numeral 21 denotes a casing of an electric device. The casing 21 contains an electric device (not shown) in addition to the circuit board 1. Then, the outer surface of the side surface portion 13 is along the inner surface 22A of the side surface 22 of the housing 21, and the outer surface of the bottom surface portion 12 is along the inner surface 23A of the bottom surface 23 of the housing 21, The chassis 11 is fixed to the housing 21. In this case, the side surface 22 and the side surface portion 13 can be fixed by attachment means such as screws (not shown), and the bottom surface 23 and the bottom surface portion 12 can be fixed by attachment means such as screws (not shown).

このように構成した回路基板の固定構造においては、回路基板１に設けた複数（偶数個）のネジ挿通孔４は、対応するもの同士が、回路基板１の中心点５に対して点対象の位置に設けられており、すなわち、中心点５を中心にして回路基板１を１８０度回転させる前と後とでネジ挿通孔４の位置が同一となるから、入力部２及び出力部３などに向きに合わせて回路基板１の向きを変えてシャーシ１１に固定することができるため、汎用性に優れ、使い勝手に優れた製品が得られる。例えば、少数であれば、客先で、シャーシ１１への回路基板１の組立てを行うことも可能となる。   In the circuit board fixing structure configured as described above, a plurality (even number) of screw insertion holes 4 provided in the circuit board 1 correspond to each other with respect to the center point 5 of the circuit board 1. In other words, the position of the screw insertion hole 4 is the same before and after the circuit board 1 is rotated 180 degrees around the center point 5, so that the input unit 2 and the output unit 3 are connected to each other. Since the direction of the circuit board 1 can be changed and fixed to the chassis 11 according to the direction, a product having excellent versatility and excellent usability can be obtained. For example, if the number is small, the circuit board 1 can be assembled to the chassis 11 at the customer.

以上のように本実施例では、底面部１２と側面部１３とを有するシャーシ１１と、底面部１２側に固定される回路基板１とを備えた回路基板の固定構造において、回路基板１を底面部１２側に固定するネジ１５と、回路基板１に設けられたネジ挿通孔４と、底面部12側に設けられネジ１５を固定するネジ受部たる雌螺子部１４とを備え、ネジ挿通孔４が回路基板１のほぼ中心に対して点対称の位置に設けられているため、回路基板１を１８０度回転して向きを変えた状態でも、ネジ挿通孔４から雌螺子部１４にネジ１５を螺合して回路基板１を取り付けることができ、回路基板１の向きを使用条件に合わせてシャーシ１１に固定することができる。   As described above, in this embodiment, in the circuit board fixing structure including the chassis 11 having the bottom surface portion 12 and the side surface portion 13 and the circuit board 1 fixed to the bottom surface portion 12 side, the circuit board 1 is mounted on the bottom surface. A screw 15 that is fixed to the portion 12 side, a screw insertion hole 4 provided in the circuit board 1, and a female screw portion 14 that is provided on the bottom surface portion 12 side and is a screw receiving portion that fixes the screw 15. 4 is provided at a point-symmetrical position with respect to the substantially center of the circuit board 1, so that the screw 15 is inserted into the female screw portion 14 from the screw insertion hole 4 even when the circuit board 1 is rotated 180 degrees and changed its direction. The circuit board 1 can be attached by screwing, and the direction of the circuit board 1 can be fixed to the chassis 11 according to the use conditions.

また、回路基板１の一側と他側には、入力部２と出力部３が設けられているから、入力部２と出力部３の使用条件に合わせた向きに回路基板１を固定することができる。   Moreover, since the input part 2 and the output part 3 are provided in the one side and the other side of the circuit board 1, the circuit board 1 should be fixed in the direction according to the use conditions of the input part 2 and the output part 3. Can do.

また、電気機器の筐体２１を備え、この筐体２１内にシャーシ１１を収納し、このシャーシ１１は、底面部１２と側面部１３を筐体２１の内面２３Ａ，２２Ａ側に接した状態で固定されるから、回路基板１で発生した熱を筐体２１側に逃がし易い構造が得られる。   In addition, a housing 21 for electrical equipment is provided, and the chassis 11 is housed in the housing 21, and the chassis 11 is in a state where the bottom surface portion 12 and the side surface portion 13 are in contact with the inner surfaces 23 </ b> A and 22 </ b> A of the housing 21. Since it is fixed, a structure in which the heat generated in the circuit board 1 is easily released to the housing 21 side can be obtained.

また、側面２２と側面部１３とをネジ（図示せず）などの取付手段により固定し、底面２３と底面部１２とをネジ（図示せず）などの取付手段により固定することにより、取付強度に優れた構造を得ることができる。   Further, by fixing the side surface 22 and the side surface portion 13 with attachment means such as screws (not shown), and fixing the bottom surface 23 and the bottom surface portion 12 with attachment means such as screws (not shown), the attachment strength. An excellent structure can be obtained.

図５は、本発明の実施例２を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述すると、この例では、前記回路基板１には、その長手方向一側の幅方向一方と、長手方向他側の幅方向他側の２箇所に、前記ネジ挿通孔４が穿設されており、これら２個のネジ挿通孔４は、回路基板１の中心点５に対して点対象の位置に設けられている。また、それらネジ挿通孔４に対応して同数の前記雌螺子部１４が前記底面部１２に形成されている。尚、回路基板１とシャーシ１１とが係合する係合部を設けてよい。   FIG. 5 shows a second embodiment of the present invention, in which the same reference numerals are given to the same parts as in the first embodiment, and detailed description thereof is omitted. In this example, the circuit board 1 includes The screw insertion holes 4 are formed in two places on one side in the width direction on the one side in the longitudinal direction and on the other side in the width direction on the other side in the longitudinal direction. The two screw insertion holes 4 are formed in the circuit board 1. The center point 5 is provided at a point target position. Further, the same number of female screw portions 14 are formed in the bottom surface portion 12 corresponding to the screw insertion holes 4. In addition, you may provide the engaging part which the circuit board 1 and the chassis 11 engage.

したがって、中心点５を中心として回路基板１を１８０度回転する前と後とで、それぞれ回路基板１を底面部12に固定することができ、このように回路基板１の固定には、２本以上のネジ１５を用いることができる。   Therefore, the circuit board 1 can be fixed to the bottom surface portion 12 before and after the circuit board 1 is rotated by 180 degrees around the center point 5, and two circuit boards 1 are fixed in this way. The above screws 15 can be used.

以上のように本実施例では、底面部１２と側面部１３とを有するシャーシ１１と、底面部１２側に固定される回路基板１とを備えた回路基板の固定構造において、回路基板１を底面部１２側に固定するネジ１５と、回路基板１に設けられたネジ挿通孔４と、底面部１２側に設けられネジ１５を固定するネジ受部たる雌螺子部１４とを備え、ネジ挿通孔４が回路基板１のほぼ中心に対して点対称の位置に設けられているため、第１実施例と同様に使用条件に合わせた向きに回路基板１を固定することができる。   As described above, in this embodiment, in the circuit board fixing structure including the chassis 11 having the bottom surface portion 12 and the side surface portion 13 and the circuit board 1 fixed to the bottom surface portion 12 side, the circuit board 1 is mounted on the bottom surface. A screw 15 that is fixed to the portion 12 side, a screw insertion hole 4 provided in the circuit board 1, and a female screw portion 14 that is provided on the bottom surface portion 12 side and is a screw receiving portion that fixes the screw 15. Since 4 is provided at a point-symmetrical position with respect to the substantially center of the circuit board 1, the circuit board 1 can be fixed in the direction according to the use conditions as in the first embodiment.

なお、本発明は上記実施例に限定されるものではなく、本発明の要旨の範囲において種々の変形実施が可能である。例えば、ネジ受部は、ネジが止まるものであれば、各種のタイプのものを用いることができ、例えば、ネジ受部としては、背景技術で説明した固定片、シャーシに固定した円筒体やスペーサ部材のネジ孔などでもよい。また、実施例では、回路基板の中心として中心点の例を示したが、中心点からずれていても、ほぼ中心であればよい。さらに、本発明は、図８（Ａ）に示したように、シャーシの底面部を筐体の側面の内面側に接するように配置すると共に、シャーシの側面部を筐体の底面の内面に接するように配置して、筐体にシャーシを固定するようにしてもよい。   In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible in the range of the summary of this invention. For example, as the screw receiving portion, various types can be used as long as the screw can be stopped. For example, as the screw receiving portion, the fixed piece described in the background art, the cylindrical body fixed to the chassis, or the spacer It may be a screw hole of a member. In the embodiment, the example of the center point is shown as the center of the circuit board. However, even if it is deviated from the center point, it may be almost the center. Further, according to the present invention, as shown in FIG. 8A, the bottom surface of the chassis is disposed so as to be in contact with the inner surface of the side surface of the housing, and the side surface of the chassis is in contact with the inner surface of the bottom surface of the housing. The chassis may be fixed to the housing.

本発明の実施例１における分解斜視図である。It is a disassembled perspective view in Example 1 of this invention. 同上、回路基板とシャーシの平面図である。It is a top view of a circuit board and a chassis same as the above. 同上、ネジ受部回りの断面図である。It is sectional drawing around a screw receiving part same as the above. 同上、固定構造の平面図である。It is a top view of a fixed structure same as the above. 本発明の実施例２.における回路基板とシャーシの平面図である。It is a top view of the circuit board and chassis in Example 2. of this invention. 従来例を示し、図６（Ａ）は平面図、図６（Ｂ）は縦断面図である。FIG. 6A is a plan view and FIG. 6B is a longitudinal sectional view showing a conventional example. 他の従来例を示し、図７（Ａ）は平面図、図７（Ｂ）は縦断面図である。FIG. 7A is a plan view and FIG. 7B is a longitudinal sectional view showing another conventional example. 回路基板を縦向きとした他の従来例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the other conventional example which made the circuit board the vertical orientation.

符号の説明Explanation of symbols

１ 回路基板
２ 入力部
３ 出力部
４ ネジ挿通孔
５ 中心点
１１ シャーシ
１２ 底面部
１３ 側面部
１４ 雌螺子部（ネジ受部）
１５ ネジ
２１ 筐体
２２ 側面
２２Ａ 内面
２３ 底面
２３Ａ 内面 DESCRIPTION OF SYMBOLS 1 Circuit board 2 Input part 3 Output part 4 Screw insertion hole 5 Center point 11 Chassis 12 Bottom face part 13 Side face part 14 Female screw part (screw receiving part)
15 Screw 21 Housing 22 Side 22A Inner surface 23 Bottom 23A Inner surface

Claims (3)

底面部と側面部とを有するシャーシと、前記底面部側に固定される回路基板とを備えた回路基板の固定構造において、前記回路基板を前記底面部側に固定するネジと、前記回路基板に設けられたネジ挿通孔と、前記底面部側に設けられ前記ネジを固定するネジ受部とを備え、前記ネジ挿通孔が前記回路基板のほぼ中心に対して点対称の位置に設けられていることを特徴とする回路基板の固定構造。 In a circuit board fixing structure comprising a chassis having a bottom surface portion and a side surface portion, and a circuit board fixed to the bottom surface portion side, a screw for fixing the circuit board to the bottom surface portion side, Provided with a screw insertion hole provided, and a screw receiving portion provided on the bottom surface portion side for fixing the screw, and the screw insertion hole is provided at a point-symmetrical position with respect to a substantially center of the circuit board. A circuit board fixing structure. 前記回路基板の一側と他側には、入力部と出力部が設けられていることを特徴とする請求項１記載の回路基板の固定構造。 2. The circuit board fixing structure according to claim 1, wherein an input part and an output part are provided on one side and the other side of the circuit board. 電気機器の筐体を備え、この筐体内に前記シャーシを収納し、このシャーシは、前記底面部と前記側面部をそれぞれ前記筐体の内面側にして固定されていることを特徴とする回路基板の固定構造。 A circuit board comprising a housing for an electrical device, wherein the chassis is housed in the housing, and the chassis is fixed with the bottom surface portion and the side surface portion being respectively on the inner surface side of the housing. Fixed structure.
JP2007149785A 2007-06-05 2007-06-05 Fixing structure for circuit board Pending JP2008305868A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015226511A1 (en) 2014-12-22 2016-06-23 Denso Corporation driving device

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Publication number Priority date Publication date Assignee Title
JPS5568391A (en) * 1978-11-16 1980-05-23 Matsushita Electric Ind Co Ltd Lint collector of washing machine
JPS61156285A (en) * 1984-12-28 1986-07-15 株式会社東芝 Image memory controller
JPH09246761A (en) * 1996-03-08 1997-09-19 Hochiki Corp Chassis frame and electronic device therewith
JPH10290081A (en) * 1997-04-14 1998-10-27 Nemic Lambda Kk Fixing structure of circuit board
JPH11274762A (en) * 1998-03-25 1999-10-08 Canon Inc Electronic board and electronic apparatus cabinet
JPH11275196A (en) * 1998-03-26 1999-10-08 Toshiba Corp Communication terminal equipment
JP2007115856A (en) * 2005-10-20 2007-05-10 Aica Kogyo Co Ltd Printed wiring board

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568391A (en) * 1978-11-16 1980-05-23 Matsushita Electric Ind Co Ltd Lint collector of washing machine
JPS61156285A (en) * 1984-12-28 1986-07-15 株式会社東芝 Image memory controller
JPH09246761A (en) * 1996-03-08 1997-09-19 Hochiki Corp Chassis frame and electronic device therewith
JPH10290081A (en) * 1997-04-14 1998-10-27 Nemic Lambda Kk Fixing structure of circuit board
JPH11274762A (en) * 1998-03-25 1999-10-08 Canon Inc Electronic board and electronic apparatus cabinet
JPH11275196A (en) * 1998-03-26 1999-10-08 Toshiba Corp Communication terminal equipment
JP2007115856A (en) * 2005-10-20 2007-05-10 Aica Kogyo Co Ltd Printed wiring board

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015226511A1 (en) 2014-12-22 2016-06-23 Denso Corporation driving device
US10033253B2 (en) 2014-12-22 2018-07-24 Denso Corporation Drive device
DE102015226511B4 (en) 2014-12-22 2022-10-27 Denso Corporation drive device

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