JP2014225488A - Radio substrate fixing structure - Google Patents

Radio substrate fixing structure Download PDF

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JP2014225488A
JP2014225488A JP2013102731A JP2013102731A JP2014225488A JP 2014225488 A JP2014225488 A JP 2014225488A JP 2013102731 A JP2013102731 A JP 2013102731A JP 2013102731 A JP2013102731 A JP 2013102731A JP 2014225488 A JP2014225488 A JP 2014225488A
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wireless
board
radio
case
fixing
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JP6364605B2 (en
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冨谷　謙三
Kenzo Tomitani
謙三 冨谷
幸宏 尾本
Yukihiro Omoto
幸宏 尾本
松本　孝之
Takayuki Matsumoto
孝之 松本
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To realize attachment of a radio substrate which can inhibit deterioration of radio characteristics caused by a metal housing.SOLUTION: A radio substrate fixing structure includes: a metal housing 1; a radio substrate 2 incorporated into the housing; a radio substrate case 3 to which the radio substrate is attached; and a fixing cover 4 which fixes the radio substrate case. The radio substrate case, to which the radio substrate is attached, is fixed to the fixing cover attached to the housing in a suspended manner.

Description

本発明は、無線機能を有した機器の筐体に基板（以下、無線基板）を固定する際の構造に関するものである。   The present invention relates to a structure for fixing a substrate (hereinafter referred to as a wireless substrate) to a housing of a device having a wireless function.

機器本体において基板を固定する際の構造として、例えば特許文献１に開示された構造がある。図５に示されるように、取付板１５から斜め方向に立てて設けられた可撓性（フレキシビリティ）を有する傾斜面部１６により、取付板１５から離間した位置に支持される基板固定面部１３に、例えば金属性のビス３０を用いて基板２０を固定する。   As a structure for fixing the substrate in the apparatus main body, there is a structure disclosed in Patent Document 1, for example. As shown in FIG. 5, the substrate fixing surface portion 13 supported at a position separated from the mounting plate 15 by the inclined surface portion 16 having flexibility (flexibility) provided in an oblique direction from the mounting plate 15. For example, the substrate 20 is fixed using a metallic screw 30.

このように、取付板１５を所定の装置に取り付けることで、その装置に衝撃が加わった際に、取付板１５を通じて伝わるその衝撃または振動に応じて傾斜面部１６が変形する。すると、傾斜面部１６が衝撃または振動を吸収して、基板固定面部１３に支持されている基板２０に作用する衝撃または振動を低減し、その基板２０の破損を低減することができる。   Thus, by attaching the mounting plate 15 to a predetermined device, when the device is subjected to an impact, the inclined surface portion 16 is deformed according to the impact or vibration transmitted through the mounting plate 15. Then, the inclined surface portion 16 absorbs the impact or vibration, the impact or vibration acting on the substrate 20 supported by the substrate fixing surface portion 13 can be reduced, and the breakage of the substrate 20 can be reduced.

一方、ガスなどのユーティリティの流量を測定するために金属製の筐体に設置されたメータに無線機能を追加したスマートメータの設置が盛んに行われている。具体的には、既に設置されたメータに、無線機器が増設される。   On the other hand, in order to measure the flow rate of utilities such as gas, smart meters in which a wireless function is added to a meter installed in a metal casing are actively being installed. Specifically, a wireless device is added to an already installed meter.

無線機器を増設する場合、短時間かつ容易に作業を進めるために、メータ本体の外側に取り付けることが一般的である。しかしながら、メータ本体の外側に無線機器を取り付けると、いたずらなどによって無線機器が取り外される危険性がある。また、無線機器をメータ本体に接続するために、電気配線がメータ本体の外側に現れる。すると、雷サージの影響により、無線機器などに不具合が発生する可能性がある。   When adding a wireless device, it is common to attach it to the outside of the meter body in order to work easily in a short time. However, if a wireless device is attached to the outside of the meter body, there is a risk that the wireless device will be removed due to mischief or the like. Also, in order to connect the wireless device to the meter body, electrical wiring appears outside the meter body. Then, a malfunction may occur in a wireless device or the like due to the influence of a lightning surge.

したがって、これらの問題に対応するために、無線機器をメータ本体の内部に取り付ける必要がある。無線機器をメータ本体の内部に取り付ける場合、特許文献１に開示された固定方法を用いることが可能である。   Therefore, in order to cope with these problems, it is necessary to install a wireless device inside the meter body. When the wireless device is attached to the inside of the meter body, the fixing method disclosed in Patent Document 1 can be used.

特開２００８-１６６３８９号公報JP 2008-166389 A

しかしながら、無線基板の取り付け方向によっては、メータ本体が取り付けられた金属製の筐体との距離が、無線特性に影響を及ぼす。特に、無線機能を有する無線基板をメータ本体に固定するために特許文献１に開示された固定方法を用いた場合、無線基板を固定するための金属製のビスの長さの分、金属製の筐体との距離がより近くなり、金属製のビスを伝って無線特性が劣化するという課題がある。   However, depending on the mounting direction of the wireless board, the distance from the metal casing to which the meter body is mounted affects the wireless characteristics. In particular, when the fixing method disclosed in Patent Document 1 is used to fix the wireless board having a wireless function to the meter body, the length of the metal screw for fixing the wireless board is equivalent to the length of the metal screw. There is a problem that the distance from the housing becomes closer, and the radio characteristics are deteriorated through a metal screw.

本発明の目的は、金属製の筐体に因る無線特性の劣化を抑制することができる無線基板の取付を実現することである。   An object of the present invention is to realize attachment of a wireless board capable of suppressing deterioration of wireless characteristics due to a metal casing.

本発明における無線基板固定構造は、金属製の筐体と、前記筐体に組み込まれる無線基
板と、前記無線基板を取り付ける無線基板ケースと、前記無線基板ケースを固定する固定カバーとから構成され、前記筐体に取り付けられた前記固定カバーに、前記無線基板を取り付けた前記無線基板ケースを吊り下げる形で固定する。 The wireless board fixing structure in the present invention includes a metal case, a wireless board incorporated in the case, a wireless board case to which the wireless board is attached, and a fixing cover for fixing the wireless board case. The wireless board case to which the wireless board is attached is fixed to the fixed cover attached to the housing in a suspended form.

本発明により、金属製の筐体に因る無線特性への影響を低減しつつ、筐体に無線基板を取り付けることができる。   According to the present invention, it is possible to attach a wireless board to a housing while reducing the influence on the wireless characteristics due to the metal housing.

本発明の第１の実施の形態における無線基板固定構造を示す図The figure which shows the radio | wireless board | substrate fixed structure in the 1st Embodiment of this invention 本発明の第２の実施の形態における無線基板固定構造を示す図The figure which shows the radio | wireless board | substrate fixed structure in the 2nd Embodiment of this invention 本発明の第３の実施の形態における無線基板固定構造を示す図The figure which shows the radio | wireless board | substrate fixed structure in the 3rd Embodiment of this invention 本発明の第４の実施の形態における無線基板固定構造を示す図The figure which shows the radio | wireless board | substrate fixed structure in the 4th Embodiment of this invention 従来の基板固定構造を示す図Diagram showing conventional substrate fixing structure

ケース内部に納める際に、ネジで無線部を含む回路を固定すると、ネジを介して、金属筐体に近づいてしまうため無線特性が劣化する可能性がある。そこで本発明ではネジを使わずに、(ケース蓋側に)引っかきなどを設けて、固定するようにした。   When the circuit including the wireless unit is fixed with a screw when the case is housed in the case, the wireless characteristic may be deteriorated because the device approaches the metal casing through the screw. Therefore, in the present invention, a screw or the like (on the case lid side) is provided and fixed without using a screw.

第１の発明は、金属製の筐体と、筐体に組み込まれる無線基板と、無線基板を取り付ける無線基板ケースと、無線基板ケースを固定する固定カバーとから構成され、筐体に取り付けられた固定カバーに、無線基板を取り付けた無線基板ケースを吊り下げる形で固定することで、製品筐体から無線基板までの距離を確保し、無線特性に与える影響を低減させることができる無線基板固定構造である。   1st invention comprised from the metal housing | casing, the radio | wireless board | substrate incorporated in a housing | casing, the radio | wireless board case which attaches a radio | wireless board, and the fixed cover which fixes a radio | wireless board case, and was attached to the housing | casing A wireless board fixing structure that secures the distance from the product housing to the wireless board and reduces the influence on the wireless characteristics by fixing the wireless board case with the wireless board attached to the fixed cover. It is.

第２の発明は、金属製の筐体と、筐体に組み込まれる無線基板と、無線基板ケースを固定する固定カバーとから構成され、製品筐体に取り付けられた固定カバーに、無線基板を直接吊り下げる形で固定することで、製品筐体から無線基板までの距離を確保し、無線特性に与える影響を低減させることができる無線基板固定構造である。   According to a second aspect of the present invention, a metal case, a wireless board incorporated in the case, and a fixed cover for fixing the wireless board case are provided. The wireless board is directly attached to the fixed cover attached to the product case. A wireless board fixing structure that can secure the distance from the product housing to the wireless board and reduce the influence on the wireless characteristics by being fixed in a suspended form.

第３の発明は、金属製の筐体と、筐体に組み込まれる無線基板と、無線基板を取り付ける無線基板ケースと、無線基板ケースを固定する固定カバーと、前面カバーとから構成され、前面カバーに無線基板を取り付けた無線基板ケースを吊り下げる形で固定することで、製品筐体から無線基板までの距離を確保し、無線特性に与える影響を低減させることができる無線基板固定構造である。   According to a third aspect of the present invention, there is provided a front cover including a metal casing, a radio board incorporated in the casing, a radio board case to which the radio board is attached, a fixed cover for fixing the radio board case, and a front cover. The wireless board fixing structure can secure the distance from the product housing to the wireless board and reduce the influence on the wireless characteristics by fixing the wireless board case with the wireless board attached thereto.

第４の発明は、金属製の筐体と、筐体に組み込まれる無線基板と、無線基板ケースを固定する固定カバーと、前面カバーとから構成され、前面カバーに無線基板を直接吊り下げる形で固定することで、製品筐体から無線基板までの距離を確保し、無線特性に与える影響を低減させることができる無線基板固定構造である。   A fourth invention is composed of a metal casing, a radio board incorporated in the casing, a fixed cover for fixing the radio board case, and a front cover, and the radio board is directly suspended from the front cover. By fixing, the distance from the product housing to the wireless board is secured, and the wireless board fixing structure can reduce the influence on the wireless characteristics.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではなく、同様の分野における類似の用語または類似の描写を用いて表現することが可能であることは、当業者において容易に理解されるであろう。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the present invention is not limited by this embodiment, and those skilled in the art can easily understand that it can be expressed using similar terms or similar descriptions in the same field. I will.

（実施の形態１）
図１は、本発明の第１の実施の形態における無線基板固定構造を示す図である。同図に示されるその構造について、以下に説明する。 (Embodiment 1)
FIG. 1 is a diagram showing a wireless board fixing structure according to the first embodiment of the present invention. The structure shown in the figure will be described below.

金属製の筐体１に、固定カバー４を取り付け、無線基板２を取り付けた無線基板ケース３の突起部１０を、固定カバー４のスリット部９に差し込み、また、突起部１０が有る側の反対側の突起部１１をリブなどで固定する。   The fixed cover 4 is attached to the metal housing 1 and the protruding portion 10 of the wireless board case 3 to which the wireless substrate 2 is attached is inserted into the slit portion 9 of the fixed cover 4, and the opposite side to the side where the protruding portion 10 is provided. The side protrusion 11 is fixed with a rib or the like.

このような構成にすることで、金属製のビスを用いずに、筐体１から無線基板２までの距離を確保しながら筐体１に無線基板２を固定することができるため、筐体１に因るアンテナ６の無線特性への影響を低減させることができる。   With this configuration, the wireless substrate 2 can be fixed to the housing 1 while securing the distance from the housing 1 to the wireless substrate 2 without using metal screws. The influence on the radio characteristics of the antenna 6 due to the above can be reduced.

また、無線基板２を吊り下げるような取付構造とすることで、無線基板２が筐体１と直接接地する部分が無くなり、電気的な結合による無線特性の影響も抑制できるという利点もある。   In addition, the mounting structure that suspends the wireless board 2 eliminates a portion where the wireless board 2 is directly grounded to the housing 1 and has an advantage that the influence of wireless characteristics due to electrical coupling can be suppressed.

なお、図１ではアンテナ６のスペースを確保するため無線基板２が下向きに構成されているが、無線基板２を上向きに構成してもよい。   In FIG. 1, the wireless board 2 is configured to face downward in order to secure a space for the antenna 6, but the wireless board 2 may be configured to face upward.

（実施の形態２）
図２は、本発明の第２の実施の形態における無線基板固定構造を示す図である。同図に示されるその構造について、以下に説明する。 (Embodiment 2)
FIG. 2 is a diagram showing a wireless board fixing structure according to the second embodiment of the present invention. The structure shown in the figure will be described below.

金属製の筐体１に、固定カバー４を取り付け、無線基板２の突起部１０を、固定カバー４のスリット部９に差し込み、また、その反対側部をリブなどで固定する。   The fixed cover 4 is attached to the metal housing 1, and the protruding portion 10 of the wireless board 2 is inserted into the slit portion 9 of the fixed cover 4, and the opposite side portion is fixed with a rib or the like.

このような構成にすることで、金属製のビスを用いずに、筐体１から無線基板２までの距離を確保しながら筐体１に無線基板２を固定することができるため、筐体１に因るアンテナ６の無線特性への影響を低減させることができる。   With this configuration, the wireless substrate 2 can be fixed to the housing 1 while securing the distance from the housing 1 to the wireless substrate 2 without using metal screws. The influence on the radio characteristics of the antenna 6 due to the above can be reduced.

また、無線基板２を吊り下げるような取付構造とすることで、無線基板２が筐体１と直接接地する部分が無くなり、電気的な結合による無線特性の影響も抑制できるという利点もある。   In addition, the mounting structure that suspends the wireless board 2 eliminates a portion where the wireless board 2 is directly grounded to the housing 1 and has an advantage that the influence of wireless characteristics due to electrical coupling can be suppressed.

なお、図２ではアンテナ６のスペースを確保するため無線基板２が下向きに構成されているが、無線基板２を上向きに構成してもよい。   In FIG. 2, the wireless board 2 is configured to face downward in order to secure a space for the antenna 6, but the wireless board 2 may be configured to face upward.

（実施の形態３）
図３は、本発明の第３の実施の形態における無線基板固定構造を示す図である。同図に示されるその構造について、以下に説明する。 (Embodiment 3)
FIG. 3 is a diagram showing a wireless board fixing structure according to the third embodiment of the present invention. The structure shown in the figure will be described below.

金属製の筐体１に、固定カバー４を取り付る。無線基板２を取り付けた無線基板ケース３の突起部１０を、前面カバー５のスリット部１２に差し込み、また、その反対側部をリブなどで固定する。更にこの前面カバー５を前記固定カバー４に取り付ける。   The fixed cover 4 is attached to the metal casing 1. The protruding portion 10 of the wireless substrate case 3 to which the wireless substrate 2 is attached is inserted into the slit portion 12 of the front cover 5 and the opposite side portion is fixed with a rib or the like. Further, the front cover 5 is attached to the fixed cover 4.

このような構成にすることで、金属製のビスを用いずに、筐体１から無線基板２までの距離を前記第１の発明より多く確保することができ、筐体１に因るアンテナ６の無線特性への影響を更に低減させることができる。   With such a configuration, the distance from the housing 1 to the wireless board 2 can be secured more than the first invention without using a metal screw, and the antenna 6 due to the housing 1 can be secured. The influence on the radio characteristics can be further reduced.

また、無線基板２を吊り下げるような取付構造とすることで、無線基板２が筐体１と直接接地する部分が無くなり、電気的な結合による無線特性の影響も抑制できるという利点もある。   In addition, the mounting structure that suspends the wireless board 2 eliminates a portion where the wireless board 2 is directly grounded to the housing 1 and has an advantage that the influence of wireless characteristics due to electrical coupling can be suppressed.

なお、図３ではアンテナ６のスペースを確保するため無線基板２が下向きに構成されているが、無線基板２を上向きに構成してもよい。   In FIG. 3, the wireless board 2 is configured to face downward in order to secure the space of the antenna 6, but the wireless board 2 may be configured to face upward.

（実施の形態４）
図４は、本発明の第４の実施の形態における無線基板固定構造を示す図である。同図に示されるその構造について、以下に説明する。 (Embodiment 4)
FIG. 4 is a diagram showing a wireless board fixing structure according to the fourth embodiment of the present invention. The structure shown in the figure will be described below.

金属製の筐体１に、固定カバー４を取り付る。無線基板２の突起部１０を、前面カバー５のスリット部１２に差し込み、また、その反対側部をリブなどで固定する。更に、この前面カバー５を前記固定カバー４に取り付ける。   The fixed cover 4 is attached to the metal casing 1. The protruding portion 10 of the wireless substrate 2 is inserted into the slit portion 12 of the front cover 5 and the opposite side portion is fixed with a rib or the like. Further, the front cover 5 is attached to the fixed cover 4.

このような構成にすることで、金属製のビスを用いずに、筐体１から無線基板２までの距離を前記第２の発明よりも更に多く確保することができ、筐体１に因るアンテナ６の無線特性への影響を更に低減させることができる。   By adopting such a configuration, it is possible to secure a greater distance from the housing 1 to the wireless substrate 2 than using the second invention without using a metal screw. The influence on the radio characteristics of the antenna 6 can be further reduced.

また、無線基板２を吊り下げるような取付構造とすることで、無線基板２が筐体１と直接接地する部分が無くなり、電気的な結合による無線特性の影響も抑制できるという利点もある。   In addition, the mounting structure that suspends the wireless board 2 eliminates a portion where the wireless board 2 is directly grounded to the housing 1 and has an advantage that the influence of wireless characteristics due to electrical coupling can be suppressed.

なお、図４ではアンテナ６のスペースを確保するため無線基板２が下向きに構成されているが、無線基板２を上向きに構成してもよい。   In FIG. 4, the wireless board 2 is configured to face downward in order to secure the space of the antenna 6, but the wireless board 2 may be configured to face upward.

以上のように本発明にかかる無線基板固定構造は、筐体およびカバーケースの構造に係る無線特性への影響を、回避することができる。   As described above, the wireless substrate fixing structure according to the present invention can avoid the influence on the wireless characteristics related to the structure of the housing and the cover case.

１ 筐体
２ 無線基板
３ 無線基板ケース
４ 固定カバー
５ 前面カバー
６ アンテナ
９、１２ スリット部
１０、１１ 突起部 DESCRIPTION OF SYMBOLS 1 Case 2 Wireless board 3 Wireless board case 4 Fixed cover 5 Front cover 6 Antenna 9, 12 Slit part 10, 11 Protrusion part

Claims (4)

金属製の筐体と、前記筐体に組み込まれる無線基板と、前記無線基板を取り付ける無線基板ケースと、前記無線基板ケースを固定する固定カバーとから構成され、
前記筐体に取り付けられた前記固定カバーに、前記無線基板を取り付けた前記無線基板ケースを吊り下げる形で固定する、
無線基板固定構造。 It is composed of a metal case, a radio board incorporated in the case, a radio board case for attaching the radio board, and a fixing cover for fixing the radio board case,
The wireless board case with the wireless board attached thereto is fixed to the fixed cover attached to the housing in a suspended form.
Wireless board fixing structure. 金属製の筐体と、前記筐体に組み込まれる無線基板と、前記無線基板ケースを固定する固定カバーとから構成され、
前記筐体に取り付けられた前記固定カバーに、前記無線基板を直接吊り下げる形で固定する、
無線基板固定構造。 It is composed of a metal case, a radio board incorporated in the case, and a fixing cover for fixing the radio board case,
The wireless board is fixed to the fixed cover attached to the housing in a form of directly hanging,
Wireless board fixing structure. 金属製の筐体と、前記筐体に組み込まれる無線基板と、前記無線基板を取り付ける無線基板ケースと、前記無線基板ケースを固定する固定カバーと、前面カバーとから構成され、
前記前面カバーに前記無線基板を取り付けた前記無線基板ケースを吊り下げる形で固定する、
無線基板固定構造。 A metal case, a radio board incorporated in the case, a radio board case to which the radio board is attached, a fixed cover for fixing the radio board case, and a front cover;
The wireless board case with the wireless board attached to the front cover is fixed in a suspended form.
Wireless board fixing structure. 金属製の筐体と、前記筐体に組み込まれる無線基板と、前記無線基板ケースを固定する固定カバーと、前面カバーとから構成され、
前記前面カバーに前記無線基板を直接吊り下げる形で固定する、
無線基板固定構造。 It is composed of a metal case, a radio board incorporated in the case, a fixed cover for fixing the radio board case, and a front cover,
The wireless board is fixed directly to the front cover in a suspended form.
Wireless board fixing structure.
JP2013102731A 2013-05-15 2013-05-15 Wireless board fixing structure Expired - Fee Related JP6364605B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04363098A (en) * 1991-04-26 1992-12-15 Matsushita Electric Works Ltd Printed board fixing structure
JP2003218558A (en) * 2002-01-21 2003-07-31 Denso Corp Electronic apparatus
JP2004235486A (en) * 2003-01-31 2004-08-19 Murata Mach Ltd Panel securing structure
JP2012064722A (en) * 2010-09-15 2012-03-29 Mitsubishi Electric Corp Circuit board holder and air handling unit with circuit board holder
JP2012151380A (en) * 2011-01-21 2012-08-09 Sony Corp Display device and electronic apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04363098A (en) * 1991-04-26 1992-12-15 Matsushita Electric Works Ltd Printed board fixing structure
JP2003218558A (en) * 2002-01-21 2003-07-31 Denso Corp Electronic apparatus
JP2004235486A (en) * 2003-01-31 2004-08-19 Murata Mach Ltd Panel securing structure
JP2012064722A (en) * 2010-09-15 2012-03-29 Mitsubishi Electric Corp Circuit board holder and air handling unit with circuit board holder
JP2012151380A (en) * 2011-01-21 2012-08-09 Sony Corp Display device and electronic apparatus

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