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JP2020043184A - Circuit substrate of computer apparatus - Google Patents

Circuit substrate of computer apparatus Download PDF

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JP2020043184A
JP2020043184A JP2018168411A JP2018168411A JP2020043184A JP 2020043184 A JP2020043184 A JP 2020043184A JP 2018168411 A JP2018168411 A JP 2018168411A JP 2018168411 A JP2018168411 A JP 2018168411A JP 2020043184 A JP2020043184 A JP 2020043184A
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sensor
housing
circuit board
vibration
sensor device
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智洋 長谷川
Tomohiro Hasegawa
智洋 長谷川
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Abstract

To provide a circuit substrate capable of recording information necessary for analyzing information derived from an installation environment of a computer apparatus.SOLUTION: A printed circuit substrate 10a of a circuit substrate 10 includes: a sensor device 12 for measuring vibration of a housing of a computer apparatus; an information recording device 14 for recording measurement information D of the sensor device 12; and control means 15 for monitoring measurement information of the sensor device 12. Holes 11 are formed at four corners of the printed circuit substrate 10a, through which shafts of fixing screws are inserted. The sensor device 12 is mounted near one of the holes 11 on the printed circuit substrate 10a.SELECTED DRAWING: Figure 1

Description

本発明は、例えば産業用コントローラなどのコンピュータ装置に搭載される回路基板に関する。   The present invention relates to a circuit board mounted on a computer device such as an industrial controller.

図２に基づき特許文献１を説明する。ここではコンピュータ装置１は、装置内基板２と、複数のハードディスクドライブ装置（以下、ＨＤＤとする。）３と、ＨＤＤ３群および内部を冷却するための冷却ファン５，６と、を備えている。   Patent Document 1 will be described with reference to FIG. Here, the computer device 1 includes an internal substrate 2, a plurality of hard disk drive devices (hereinafter, referred to as HDDs) 3, and cooling fans 5, 6 for cooling the HDD 3 group and the inside.

この基板２には、基板２の振動を検出する第１の加速度センタ７と、バックボードパネル４に実装された第２の加速度センサ８と、を備えている。この第２の加速度センサ８によってＨＤＤ３３は、所定の周期で振動が検出されている。   The board 2 includes a first acceleration center 7 for detecting vibration of the board 2 and a second acceleration sensor 8 mounted on the backboard panel 4. The vibration of the HDD 33 is detected at a predetermined cycle by the second acceleration sensor 8.

この両加速度センサ７，８は、冷却ファン５，６を制御するマネージメントコントローラ９に接続されている。このコントローラ９は、両加速度センサ７，８の共振ポイントの閾値が記録されている。   The two acceleration sensors 7 and 8 are connected to a management controller 9 that controls the cooling fans 5 and 6. The controller 9 records the threshold values of the resonance points of the acceleration sensors 7 and 8.

そして、前記コントローラ９は、ＨＤＤ３の駆動に伴って発生する振動数が前記閾値に近づいた場合に冷却ファン５，６の回転数を制御する。   The controller 9 controls the number of rotations of the cooling fans 5 and 6 when the frequency of the vibration generated by driving the HDD 3 approaches the threshold.

特開２０１２−４８６５３JP 2012-48653A

特許文献１は、ＨＤＤ３の振動が前記閾値に近づいた場合に冷却ファンの回転数を制御することでＨＤＤ３のアクセス速度の遅延を生じさせることなく、共振現象の発生の抑制を図っている。   Patent Document 1 attempts to suppress the occurrence of the resonance phenomenon without causing a delay in the access speed of the HDD 3 by controlling the rotation speed of the cooling fan when the vibration of the HDD 3 approaches the threshold value.

ところが、産業用コントローラなどのコンピュータ装置は、内蔵のＨＤＤ３などの駆動装置の振動だけでなく、外部装置の発生する振動など設置環境に由来する振動に共振し、故障などの障害が発生する場合が少なくない。   However, a computer device such as an industrial controller may resonate not only with a vibration of a driving device such as a built-in HDD 3 but also with a vibration derived from an installation environment such as a vibration generated by an external device, and a failure or the like may occur. Not a few.

そうするとＨＤＤ３との共振を抑制するだけでは不十分であり、障害の発生時には原因究明や再発防止・製品改良の観点からコンピュータ装置の設置環境に由来する振動などの情報解析が重要となる。   In this case, simply suppressing the resonance with the HDD 3 is not sufficient. When a failure occurs, it is important to analyze information such as vibration originating from the installation environment of the computer device from the viewpoint of investigating the cause, preventing recurrence, and improving the product.

本発明は、このような従来の問題を解決するためになされ、コンピュータ装置の設置環境に由来する情報の解析に必要な情報を記録可能な回路基板の提供を解決課題としている。   The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a circuit board capable of recording information necessary for analyzing information derived from an installation environment of a computer device.

（１）本発明は、コンピュータ装置の筺体に固定ねじを用いて取り付けられる基板本体と、
前記筺体の振動を計測するセンサと、
前記センサの計測情報を記録する情報記録装置と、を備え、
前記基板本体の四隅には、前記固定ねじの軸部が挿通される孔部が形成されている一方、
前記センサを、前記基板本体のいずれかの前記ねじ孔の近傍に実装したことを特徴としている。 (1) The present invention provides a board body attached to a housing of a computer device using a fixing screw,
A sensor for measuring vibration of the housing;
An information recording device that records measurement information of the sensor,
At the four corners of the substrate body, holes through which the shafts of the fixing screws are inserted are formed,
The sensor is mounted near one of the screw holes of the substrate body.

（２）前記センサは、加速度センサで構成してもよく、あるいは前記筺体の振動音を計測する音センサにより構成してもよい。   (2) The sensor may be constituted by an acceleration sensor, or may be constituted by a sound sensor for measuring a vibration sound of the housing.

（３）前記センサの計測情報と事前に設定された閾値とを比較し、該比較の結果に基づき障害の発生を認定することもできる。   (3) It is also possible to compare the measurement information of the sensor with a preset threshold value, and determine the occurrence of a failure based on the result of the comparison.

本発明によれば、コンピュータ装置の設置環境に由来する振動が検出され、検出された振動の情報が記録される。これによりコンピュータ装置の設置環境に由来する情報の解析が可能となる。   According to the present invention, vibration originating in the installation environment of the computer device is detected, and information on the detected vibration is recorded. This makes it possible to analyze information derived from the installation environment of the computer device.

本発明の実施形態に係るコンピュータ装置の回路基板を示す平面図。FIG. 1 is an exemplary plan view showing a circuit board of a computer device according to an embodiment of the present invention. 特許文献１のコンピュータ装置の説明図。FIG. 3 is an explanatory diagram of a computer device of Patent Document 1.

以下、本発明の実施形態に係るコンピュータ装置の回路基板を説明する。この回路基板は、例えば産業用コントローラなどのコンピュータ装置の筺体内に搭載される。   Hereinafter, a circuit board of a computer device according to an embodiment of the present invention will be described. The circuit board is mounted in a housing of a computer device such as an industrial controller.

≪全体構成≫
図１に基づき前記回路基板の全体構成を説明する。この回路基板１０は、略長方形状のプリント基板１０ａと、プリント基板１０ａに表面実装されたセンサデバイス１２と、センサデバイス１２の計測情報を記録する情報記録装置１４と、センサデバイス１２の計測情報Ｄを監視する制御手段（マイクロチップなど）１５と、を備えている。 ≪Overall configuration≫
The overall configuration of the circuit board will be described with reference to FIG. The circuit board 10 includes a substantially rectangular printed board 10a, a sensor device 12 surface-mounted on the printed board 10a, an information recording device 14 for recording measurement information of the sensor device 12, and measurement information D of the sensor device 12. Control means (microchip or the like) 15 for monitoring

このセンサデバイス１２は、前記筺体の振動時の加速度を計測する加速度センサ／前記筺体の振動音を計測する音センサ（例えばマイクロホンなど）により構成されている。また、情報記録装置１４には、可逆的手段で着脱可能な小型ＩＣカードによる記憶媒体、例えばマイクロＳＤカード（登録商標）などを用いることができる。   The sensor device 12 includes an acceleration sensor for measuring acceleration when the housing vibrates and a sound sensor (for example, a microphone) for measuring vibration sound of the housing. Further, as the information recording device 14, a storage medium such as a micro SD card (registered trademark) that can be attached and detached by reversible means can be used.

このプリント基板１０ａの四隅には、図示省略の固定ねじの軸部が挿通される孔部１１が形成されている（ただし、図１中の隅（コーナ部）Ｃには一対の孔部１１が形成されている。）。この各孔部１１に前記軸部を挿通した後に前記筺体に締結することで前記回路基板１０が前記筺体に固定される。   At the four corners of the printed circuit board 10a, holes 11 through which shaft portions of fixing screws (not shown) are inserted are formed (however, a pair of holes 11 is formed at a corner (corner portion) C in FIG. 1). Is formed.) The circuit board 10 is fixed to the housing by fastening the shaft to the housing after inserting the shaft into each of the holes 11.

このときプリント基板１０ａには、一方側Ｒにセンサデバイス１２と情報記録装置１４とが配置され、他方側ＬにＨＤＤや冷却ファンなどの駆動装置が配置されている。また、前記駆動装置によるノイズ（振動）の誤計測を避ける観点からセンサデバイス１２は、前記駆動装置から離れた位置に配置することが好ましい。   At this time, the sensor device 12 and the information recording device 14 are arranged on one side R of the printed circuit board 10a, and driving devices such as HDDs and cooling fans are arranged on the other side L. Further, from the viewpoint of avoiding erroneous measurement of noise (vibration) by the driving device, the sensor device 12 is preferably arranged at a position distant from the driving device.

≪センサデバイス１２≫
センサデバイス１２は、プリント基板１０ａのコーナ部Ｃに形成された両孔部１１間に設置されている。このセンサデバイス１２は、前述のように加速度センサであれば前記筺体の加速度を計測する一方、音センサであれば前記筺体の振動音を計測する。 ≪Sensor device 12≫
The sensor device 12 is provided between the two holes 11 formed in the corner C of the printed circuit board 10a. As described above, the sensor device 12 measures the acceleration of the housing if it is an acceleration sensor, and measures the vibration sound of the housing if it is a sound sensor.

換言すればセンサデバイス１２は、前記筺体の振動を加速度／振動音として計測する振動センサと呼ぶことができ、前記筺体に最も近い箇所に設置することが好ましい。   In other words, the sensor device 12 can be called a vibration sensor that measures the vibration of the housing as acceleration / vibration sound, and is preferably installed at a position closest to the housing.

そこで、センサデバイス１２は、プリント基板１０ａと前記筺体との接合部、即ち孔部１１の近傍（周囲）に設置した。ここではプリント基板１０ａの共振の影響を最小限に抑える最良の形態として、センサデバイス１２を挟むように一対の前記固定ねじが前記筺体と強固に締結されている。なお、他の形態として、１本の前記固定ねじを用いて前記筺体と強固に締結してもよいものとする。   Therefore, the sensor device 12 was installed near the joint between the printed circuit board 10a and the housing, that is, near (around) the hole 11. Here, as a best mode for minimizing the influence of the resonance of the printed circuit board 10a, the pair of fixing screws is firmly fastened to the housing so as to sandwich the sensor device 12. Note that, as another form, it may be firmly fastened to the housing using one fixing screw.

≪制御手段１５≫
センサデバイス１２によれば、プリント基板１０ａの構造に伴う共振を除外した前記筺体の加速度／振動音が、前記コンピュータ装置の設置環境由来の振動として計測（検知）される。 {Control means 15}
According to the sensor device 12, the acceleration / vibration sound of the housing excluding resonance caused by the structure of the printed circuit board 10a is measured (detected) as vibration derived from the installation environment of the computer device.

このとき制御手段１５は、センサデバイス１２の計測情報Ｄを監視し、該計測情報Ｄと事前設定の閾値とを比較する。この閾値は、あらかじめコンピュータ装置に障害が発生していない状態で取得された前記筺体の加速度／振動音の上限値などに基づき定めることができる。   At this time, the control unit 15 monitors the measurement information D of the sensor device 12, and compares the measurement information D with a preset threshold. This threshold value can be determined based on an upper limit value of acceleration / vibration sound of the housing, which is obtained in advance without any failure in the computer device.

前記比較の結果、センサデバイス１２の計測情報Ｄが閾値の加速度／振動音の値を越えている場合、計測情報Ｄの振動音が特定の特徴を持つ波形に該当する場合などには障害の発生を認定し、警報信号の出力／コンピュータ装置の保護指令を出力する。この場合にセンサデバイス１２の計測情報Ｄの計測値は情報記録装置１４に記録されている。   As a result of the comparison, when the measurement information D of the sensor device 12 exceeds the acceleration / vibration sound value of the threshold value, or when the vibration sound of the measurement information D corresponds to a waveform having a specific characteristic, a failure occurs. And outputs a warning signal / protection command for the computer device. In this case, the measurement value of the measurement information D of the sensor device 12 is recorded in the information recording device 14.

このような回路基板１０を前記筺体内に搭載したコンピュータ装置によれば、センサデバイス１２により設置環境に由来した前記筺体の加速度／振動音が計測される。ところが、外部装置の増加や変更（特に外部装置に接続された警報用スピーカの鳴動）など設置環境が変われば、センサデバイス１２の計測情報Ｄの値が閾値を越える場合などが発生する。   According to the computer device in which such a circuit board 10 is mounted in the housing, the acceleration / vibration sound of the housing derived from the installation environment is measured by the sensor device 12. However, if the installation environment changes, such as an increase or change in the number of external devices (especially, the sounding of an alarm speaker connected to the external device), the value of the measurement information D of the sensor device 12 may exceed the threshold.

この場合には、前述のように警報信号などが出力されるため、障害の発生を早期に検知でき、外部装置の発生する振動（設置環境に由来する振動）などへの共振を未然に防止し、故障などの障害発生を防止することが可能となる。   In this case, an alarm signal or the like is output as described above, so that occurrence of a failure can be detected at an early stage, and resonance to vibration (vibration caused by the installation environment) generated by an external device can be prevented. It is possible to prevent the occurrence of a failure such as a failure.

この障害発生時の計測情報Ｄは情報記録装置１４に記録されているため、障害発生時の設置環境を容易に特定することができ、設置環境に由来する振動の影響を解析することができる。   Since the measurement information D at the time of the occurrence of the failure is recorded in the information recording device 14, the installation environment at the time of the occurrence of the failure can be easily specified, and the influence of vibration due to the installation environment can be analyzed.

これにより障害発生の原因究明のための情報が増加し、障害発生の原因となる設置環境を多数のデータから特定することが可能となり、再発防止や製品改良に活用することができる。   As a result, information for investigating the cause of the failure increases, and the installation environment causing the failure can be specified from a large number of data, which can be used for preventing recurrence and improving the product.

なお、本発明は、上記実施形態に限定されるものではなく、各請求項に記載された範囲内で変形して実施することができる。例えば制御手段１５は、センサデバイス１２と別個に設ける必要はなく、センサデバイス１２に実装してもよい。この場合には、センサデバイス１２により計測情報と閾値とが比較され、警報信号などを出力することができる。   Note that the present invention is not limited to the above-described embodiment, and can be modified and implemented within the scope described in each claim. For example, the control unit 15 does not need to be provided separately from the sensor device 12, and may be mounted on the sensor device 12. In this case, the measurement information is compared with the threshold by the sensor device 12, and an alarm signal or the like can be output.

また、加速度センサと音センサの双方をセンサデバイス１２としてプリント基板１０ａに実装してもよい。この場合には前記両センサを孔部１１の近傍に設けるものとする。   Further, both the acceleration sensor and the sound sensor may be mounted on the printed circuit board 10a as the sensor device 12. In this case, the two sensors are provided near the hole 11.

１０…回路基板
１０ａ…プリント基板（基板本体）
１１…孔部
１２…センサデバイス（センサ）
１４…情報記録装置
１５…制御手段 10: circuit board 10a: printed circuit board (board body)
11 hole 12 sensor device (sensor)
14 information recording device 15 control means

Claims (4)

コンピュータ装置の筺体に固定ねじを用いて取り付けられる基板本体と、
前記筺体の振動を計測するセンサと、
前記センサの計測情報を記録する情報記録装置と、を備え、
前記基板本体の四隅には、前記固定ねじの軸部が挿通される孔部が形成されている一方、
前記センサを、前記基板本体のいずれかの前記ねじ孔の近傍に実装したことを特徴とするコンピュータ装置の回路基板。 A board body attached to the housing of the computer device using fixing screws,
A sensor for measuring vibration of the housing;
An information recording device that records measurement information of the sensor,
At the four corners of the substrate body, holes through which the shafts of the fixing screws are inserted are formed,
A circuit board for a computer device, wherein the sensor is mounted near one of the screw holes of the board body. 前記センサは、加速度センサにより構成されていることを特徴とする請求項１記載のコンピュータ装置の回路基板。   The circuit board according to claim 1, wherein the sensor comprises an acceleration sensor. 前記センサは、前記筺体の振動音を計測する音センサにより構成されていることを特徴とする請求項１記載のコンピュータ装置の回路基板。   The circuit board according to claim 1, wherein the sensor includes a sound sensor that measures a vibration sound of the housing. 前記センサの計測情報と事前に設定された閾値とを比較し、該比較の結果に基づき障害の発生を認定する
ことを特徴とする請求項１〜３のいずれかに記載のコンピュータ装置の回路基板。 The circuit board according to any one of claims 1 to 3, wherein the measurement information of the sensor is compared with a preset threshold value, and the occurrence of a failure is determined based on a result of the comparison. .
JP2018168411A 2018-09-10 2018-09-10 Circuit substrate of computer apparatus Pending JP2020043184A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09133575A (en) * 1995-09-08 1997-05-20 Omron Corp Seismic sensor
JP2001244656A (en) * 2000-03-01 2001-09-07 Keihin Corp Electronic circuit board storage case
JP2012177652A (en) * 2011-02-28 2012-09-13 Keihin Corp Electronic control device
JP2012234253A (en) * 2011-04-28 2012-11-29 Fujitsu Frontech Ltd Portable terminal and failure detection system thereof
JP2017030236A (en) * 2015-07-31 2017-02-09 セイコーエプソン株式会社 Cut-off detection device, printing device and cut-off detection method
JP2018133373A (en) * 2017-02-13 2018-08-23 株式会社デンソー Electronic equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09133575A (en) * 1995-09-08 1997-05-20 Omron Corp Seismic sensor
JP2001244656A (en) * 2000-03-01 2001-09-07 Keihin Corp Electronic circuit board storage case
JP2012177652A (en) * 2011-02-28 2012-09-13 Keihin Corp Electronic control device
JP2012234253A (en) * 2011-04-28 2012-11-29 Fujitsu Frontech Ltd Portable terminal and failure detection system thereof
JP2017030236A (en) * 2015-07-31 2017-02-09 セイコーエプソン株式会社 Cut-off detection device, printing device and cut-off detection method
JP2018133373A (en) * 2017-02-13 2018-08-23 株式会社デンソー Electronic equipment

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