JP4930070B2 - Printed wiring board - Google Patents

Printed wiring board Download PDF

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JP4930070B2
JP4930070B2 JP2007012086A JP2007012086A JP4930070B2 JP 4930070 B2 JP4930070 B2 JP 4930070B2 JP 2007012086 A JP2007012086 A JP 2007012086A JP 2007012086 A JP2007012086 A JP 2007012086A JP 4930070 B2 JP4930070 B2 JP 4930070B2
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board
main board
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power supply
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JP2008181904A (en
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太一郎 飯田
謙 伊東
慎太郎 安達
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Yokogawa Electric Corp
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Description

本発明はプリント配線板に関し、詳しくは、多機種製品で共用できるようにした新しいプリント配線板の構成に関するものである。   The present invention relates to a printed wiring board, and more particularly to a configuration of a new printed wiring board that can be shared by many types of products.

プリント配線板は、各種の電子機器で一般に広く用いられている。このような電子機器の一種に、信号変換器がある。   Printed wiring boards are generally widely used in various electronic devices. One type of such electronic equipment is a signal converter.

信号変換器は、各種物理量を測定するセンサの信号を使用目的に応じた使いやすい信号形態に変換出力するために用いられるものであり、実験室の試験装置から工場のプロセス制御装置まで使用環境や用途に応じた様々な仕様のものが用いられている。   A signal converter is used to convert and output signals from sensors that measure various physical quantities into an easy-to-use signal format according to the purpose of use, from the laboratory test equipment to the factory process control equipment. The thing of various specifications according to a use is used.

具体的には、信号変換器の入力仕様はほぼ共通しているものの、出力仕様・電源仕様・端子仕様が異なるという構成が大多数である。   Specifically, the input specifications of the signal converters are almost the same, but most of the configurations have different output specifications, power supply specifications, and terminal specifications.

そこで、従来は、これら信号変換器における多様な仕様の組み合わせについて、それぞれ個別にプリント配線板を設計して製品化することが行われていた。   Therefore, conventionally, printed wiring boards have been individually designed and commercialized for various combinations of specifications in these signal converters.

特開平２−１２９５６７JP-A-2-129567

この結果、多種類のプリント配線板を設計しなければならず、これら多種類のプリント配線板に関連する大量の図面管理や機種ごとに異なる多数電子部品の調達管理など、膨大な管理工数を要する状態になっていた。   As a result, many types of printed wiring boards must be designed, and enormous management man-hours are required, such as managing a large number of drawings related to these various types of printed wiring boards and managing procurement of a large number of electronic components that differ from model to model. It was in a state.

本発明は、このような従来の問題点に着目したものであり、その目的は、多機種製品で共用できるようにして管理工数を大幅に削減できる新しい構造のプリント配線板を提供することにある。   The present invention pays attention to such conventional problems, and an object of the present invention is to provide a printed wiring board having a new structure that can be shared by multi-model products and can greatly reduce the management man-hours. .

このような課題を達成する請求項１の発明は、
複数の機種に共通する共通回路部分が実装されたマザーボードと、各機種に固有の固有回路部分が実装されマザーボードの一部と電気的に接続されるメインボードとで構成されたプリント配線板において、
前記マザーボードには、複数の機種に共通する共通電源部と、前記メインボードの種類に応じて所定レンジ範囲の出力信号に変換するレンジカードが選択的に設けられ、
前記メインボードには、前記共通電源部の出力電圧が入力されメインボードの固有回路各部に所定の電源電圧を供給する個別電源部と、入力部と出力部を直流的に絶縁結合する絶縁結合素子と、外部回路と通信を行う通信部が設けられ、
前記メインボードは複数機種に共通する所定の統一信号を前記マザーボードに出力し、前記マザーボードは所望レンジに変換された信号を出力することを特徴とする。 The invention of claim 1 which achieves such a problem,
In a printed wiring board composed of a mother board on which a common circuit part common to a plurality of models is mounted and a main board on which a unique circuit part unique to each model is mounted and electrically connected to a part of the motherboard ,
The mother board is selectively provided with a common power supply unit common to a plurality of models, and a range card that converts an output signal within a predetermined range according to the type of the main board,
The main board is supplied with the output voltage of the common power supply unit and supplies a predetermined power supply voltage to each part of the main circuit of the main board, and an insulation coupling element that insulates and couples the input unit and the output unit in a DC manner And a communication unit for communicating with an external circuit,
The main board outputs a predetermined unified signal common to a plurality of models to the mother board, and the mother board outputs a signal converted into a desired range .

これにより、マザーボードとメインボードを組み合わせることによって多機種製品を実現でき、プリント配線板の管理工数を大幅に削減できる。   As a result, a multi-model product can be realized by combining the mother board and the main board, and the management man-hour for the printed wiring board can be greatly reduced.

以下、本発明について、図面を用いて説明する。図１は本発明に基づく基本構成図であり、信号変換器の例を示している。マザーボード１０には、複数種類のメインボード２０に共通した共通回路１１が実装されている。この共通回路１１の一部には、共通電源部１２が設けられている。マザーボード１０の一端には、図示しない外部回路と電気的に接続するためのコネクタ１３が設けられている。また、機種シリーズの仕様に応じて、共通回路１１の一部にはレンジカード３０がコネクタ３１を介して接続される。   Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 is a basic configuration diagram based on the present invention and shows an example of a signal converter. A common circuit 11 common to a plurality of types of main boards 20 is mounted on the motherboard 10. A common power supply unit 12 is provided in a part of the common circuit 11. One end of the motherboard 10 is provided with a connector 13 for electrically connecting to an external circuit (not shown). Further, the range card 30 is connected to a part of the common circuit 11 via a connector 31 according to the specifications of the model series.

メインボード２０には、各機種に応じた固有の固有回路部分が実装される。図１では、信号変換器の固有回路として、入力部２１、出力部２２、入力部２１と出力部２２を直流的に絶縁した状態で結合するフォトカプラなどの絶縁結合素子２３、外部回路と通信を行う通信部２４、これら固有回路部分に所定の電源電圧を供給する個別電源部２５が設けられている。このメインボード２０は、コネクタ２６を介してマザーボード１０と接続されている。   The main board 20 is mounted with a unique circuit portion unique to each model. In FIG. 1, as an inherent circuit of the signal converter, an input unit 21, an output unit 22, an insulating coupling element 23 such as a photocoupler that couples the input unit 21 and the output unit 22 in a DC-insulated state, and communication with an external circuit. And a separate power supply unit 25 for supplying a predetermined power supply voltage to these unique circuit portions. The main board 20 is connected to the mother board 10 via a connector 26.

図２は図１の具体例を示す接続図であり、図１と共通する部分には同一符号を付けている。なお図２の例はネスト取付型で１〜５Ｖの統一変換出力信号を出力するものであり、レンジカード２０は設けられていない。   FIG. 2 is a connection diagram showing a specific example of FIG. 1, and the same reference numerals are given to the parts common to FIG. The example of FIG. 2 is a nest mounting type and outputs a unified conversion output signal of 1 to 5 V, and the range card 20 is not provided.

熱電対・測温抵抗・電圧・電流・抵抗入力などの入力信号は、コネクタ１３→マザーボード１０→コネクタ２６の経路を通ってメインボード２０に入力される。メインボード２０は、全ての入力信号を１〜５Ｖの出力信号に統一変換する。メインボード２０で統一変換された１〜５Ｖの出力信号は、コネクタ２６→マザーボード１０→コネクタ１３の経路を通って外部に出力される。   Input signals such as thermocouple, temperature measuring resistance, voltage, current, and resistance input are input to the main board 20 through the path of the connector 13 → the motherboard 10 → the connector 26. The main board 20 unifies and converts all input signals into 1-5V output signals. An output signal of 1 to 5 V that is unified and converted by the main board 20 is output to the outside through a path of the connector 26 → the motherboard 10 → the connector 13.

マザーボード１０の共通電源部１２には、コネクタ１３を介して外部から電源が入力される。共通電源部１２は、マザーボード１０の共通回路１１の各部に所定の駆動電圧を供給するとともに、メインボード２０の個別電源部２５にコネクタ２６を介して２４Ｖを供給する。   Power is input from the outside to the common power supply unit 12 of the motherboard 10 via the connector 13. The common power supply unit 12 supplies a predetermined drive voltage to each part of the common circuit 11 of the motherboard 10 and supplies 24 V to the individual power supply unit 25 of the main board 20 via the connector 26.

メインボード２０の個別電源部２５は、メインボード２０の固有回路各部に、それぞれの回路を駆動するのに必要な所定の電源電圧(＋１５Ｖ、＋７Ｖ、−１５Ｖ、＋２４Ｖ)を供給する。   The individual power supply unit 25 of the main board 20 supplies predetermined power supply voltages (+ 15V, + 7V, −15V, + 24V) necessary for driving each circuit to each part of the unique circuit of the main board 20.

メインボード２０の通信部２４は、マザーボード１０に接続されている通信ケーブルアッセンブリ４０を介して、通信ケーブルアッセンブリ４０⇔マザーボード１０⇔コネクタ２６⇔メインボード２０の経路を介してメインボード２０と図示しない外部装置との間で測定制御信号や確認信号などの授受を行う。   The communication unit 24 of the main board 20 is connected to the main board 20 via the communication cable assembly 40 connected to the mother board 10 and the main board 20 via the communication cable assembly 40, the mother board 10 and the connector 26, and the outside of the main board 20. Send and receive measurement control signals and confirmation signals to and from the device.

図３は図１の他の具体例を示す接続図であり、図１および図２と共通する部分には同一符号を付けている。図３の例はネスト取付・単独使用兼用型であって、マザーボード１０の共通回路１１には用途に応じて所定範囲のレンジ(４〜２０ｍＡ、０〜１０Ｖ、０〜５Ｖ、０〜１Ｖ、１〜５Ｖ、０〜１００ｍＶ、０〜１０ｍＶなど)の変換出力信号を出力するためのレンジ回路が設けられている。   FIG. 3 is a connection diagram showing another specific example of FIG. 1, and the same reference numerals are given to portions common to FIGS. The example of FIG. 3 is a nest mounting / single-use type, and the common circuit 11 of the mother board 10 has a predetermined range (4-20 mA, 0-10 V, 0-5 V, 0-1 V, 1 (5V, 0-100 mV, 0-10 mV, etc.) is provided.

図３における熱電対・測温抵抗・電圧・電流・抵抗入力などの入力信号は、端子板１４→マザーボード１０→コネクタ２６の経路を通ってメインボード２０に入力される。メインボード２０は、全ての入力信号を１〜５Ｖの出力信号に統一変換する。メインボード２０で統一変換された１〜５Ｖの出力信号は、コネクタ２６を介して再びマザーボード１０の共通回路１１に入力される。そして、共通回路１１に設けられているレンジ回路において、切り替え設定される所定レンジ範囲(４〜２０ｍＡ、０〜１０Ｖ、０〜５Ｖ、０〜１Ｖ、１〜５Ｖ、０〜１００ｍＶ、０〜１０ｍＶなど)の出力信号に変換される。これら変換出力信号は、端子板１４を介して外部に出力される。   Input signals such as thermocouples, temperature measuring resistors, voltages, currents, and resistance inputs in FIG. 3 are input to the main board 20 through the path of the terminal board 14 → the mother board 10 → the connector 26. The main board 20 unifies and converts all input signals into 1-5V output signals. The 1 to 5 V output signal unified and converted by the main board 20 is input again to the common circuit 11 of the motherboard 10 via the connector 26. And in the range circuit provided in the common circuit 11, a predetermined range range (4 to 20 mA, 0 to 10 V, 0 to 5 V, 0 to 1 V, 1 to 5 V, 0 to 100 mV, 0 to 10 mV, etc.) to be set for switching. ) Output signal. These converted output signals are output to the outside via the terminal board 14.

レンジカード３０は、マザーボード１０の共通回路１１に設けられているレンジ回路に実装されていない特殊なレンジ仕様(例えば＋1０Ｖ〜−１０Ｖ)に対応するためのものであり、必要に応じてコネクタ３１を介してマザーボード１０の一部に接続される。レンジカード３０が装着された場合、メインボード２０で統一変換された１〜５Ｖの出力信号はコネクタ３１の経路を通ってレンジカード３０に入力され、所定レンジ範囲の出力信号に変換される。このレンジカード３０による変換出力信号も、端子板１４を介して外部に出力される。   The range card 30 is for dealing with a special range specification (for example, +10 V to −10 V) that is not mounted on the range circuit provided in the common circuit 11 of the motherboard 10, and the connector 31 is connected as necessary. To a part of the motherboard 10. When the range card 30 is attached, the output signal of 1 to 5 V unified and converted by the main board 20 is input to the range card 30 through the path of the connector 31 and converted into an output signal in a predetermined range range. The conversion output signal from the range card 30 is also output to the outside via the terminal board 14.

マザーボード１０の共通電源部１２には、端子板１４を介して外部から電源が入力される。共通電源部１２は、図２と同様に、マザーボード１０の共通回路１１の各部に所定の駆動電圧を供給するとともに、メインボード２０の個別電源部２５にコネクタ２６を介して２４Ｖのみを供給する。   Power is input from the outside to the common power supply unit 12 of the motherboard 10 through the terminal board 14. As in FIG. 2, the common power supply unit 12 supplies a predetermined drive voltage to each part of the common circuit 11 of the motherboard 10 and supplies only 24 V to the individual power supply unit 25 of the main board 20 via the connector 26.

このように複数の機種に共通する共通回路部分が実装されたマザーボード１０と各機種に固有の固有回路部分が実装されたメインボード２０を組み合わせることにより、従来各機種毎に個別に設計していた多数のプリント配線板と同等の機能を、従来よりも大幅に少ない枚数のプリント配線板で実現できる。   Thus, by combining the mother board 10 on which the common circuit portion common to a plurality of models is mounted and the main board 20 on which the unique circuit portion unique to each model is combined, conventionally, each model has been individually designed. Functions equivalent to many printed wiring boards can be realized with a significantly smaller number of printed wiring boards than before.

特に、実施例として説明した信号変換器に適用することにより、メインボード２０を複数機種に共通する入力カードとして使用して１〜５Ｖの統一出力信号にし、マザーボード１０で１〜５Ｖの統一出力信号を所望レンジ(４〜２０ｍＡ、０〜１０Ｖ、０〜５Ｖ、０〜１Ｖ、１〜５Ｖ、０〜１００ｍＶ、０〜１０ｍＶなど)の変換出力信号として出力することができるので、管理図面の大幅削減、使用部品の共通化によるコスト低減、調整・検査工程の共通化などが図れる。   In particular, by applying to the signal converter described as an embodiment, the main board 20 is used as an input card common to a plurality of models to obtain a unified output signal of 1 to 5 V, and a unified output signal of 1 to 5 V on the motherboard 10. Can be output as a conversion output signal in the desired range (4 to 20 mA, 0 to 10 V, 0 to 5 V, 0 to 1 V, 1 to 5 V, 0 to 100 mV, 0 to 10 mV, etc.), greatly reducing management drawings Costs can be reduced by using common parts, and adjustment and inspection processes can be shared.

なお、上記実施例では信号変換器に適用する例を説明したが、信号変換器に限るものではなく、仕様が異なる多数の製品それぞれについて個別にプリント配線板を設計してシリーズ化している各種の電子機器にも適用できるものである。   In addition, although the example applied to a signal converter was explained in the above-mentioned embodiment, it is not restricted to a signal converter, and various types of products are designed and seriesd individually for each of a number of products having different specifications. It can also be applied to electronic equipment.

以上説明したように、本発明によれば、多機種製品で共用することにより管理工数を大幅に削減できる新しい構造のプリント配線板が実現できる。   As described above, according to the present invention, it is possible to realize a printed wiring board having a new structure that can greatly reduce the management man-hours by being shared by many types of products.

本発明に基づく基本構成図である。1 is a basic configuration diagram based on the present invention. 図１の具体例を示す接続図である。FIG. 2 is a connection diagram illustrating a specific example of FIG. 1. 図１の他の具体例を示す接続図である。It is a connection diagram which shows the other specific example of FIG.

符号の説明Explanation of symbols

１０ マザーボード
１１ 共通回路
１２ 共通電源部
１３、２６、３１ コネクタ
１４ 端子板
２０ メインボード
２１ 入力部
２２ 出力部
２３ 絶縁結合素子
２４ 通信部
２５ 個別電源部
３０ レンジカード
４０ 通信ケーブルアッセンブリ DESCRIPTION OF SYMBOLS 10 Mother board 11 Common circuit 12 Common power supply parts 13, 26, 31 Connector 14 Terminal board 20 Main board 21 Input part 22 Output part 23 Insulation coupling element 24 Communication part 25 Individual power supply part 30 Range card 40 Communication cable assembly

Claims (1)

複数の機種に共通する共通回路部分が実装されたマザーボードと、各機種に固有の固有回路部分が実装されマザーボードの一部と電気的に接続されるメインボードとで構成されたプリント配線板において、
前記マザーボードには、複数の機種に共通する共通電源部と、前記メインボードの種類に応じて所定レンジ範囲の出力信号に変換するレンジカードが選択的に設けられ、
前記メインボードには、前記共通電源部の出力電圧が入力されメインボードの固有回路各部に所定の電源電圧を供給する個別電源部と、入力部と出力部を直流的に絶縁結合する絶縁結合素子と、外部回路と通信を行う通信部が設けられ、
前記メインボードは複数機種に共通する所定の統一信号を前記マザーボードに出力し、前記マザーボードは所望レンジに変換された信号を出力することを特徴とするプリント配線板。 In a printed wiring board composed of a mother board on which a common circuit part common to a plurality of models is mounted and a main board on which a unique circuit part unique to each model is mounted and electrically connected to a part of the motherboard ,
The mother board is selectively provided with a common power supply unit common to a plurality of models, and a range card that converts an output signal within a predetermined range according to the type of the main board,
The main board is supplied with the output voltage of the common power supply unit and supplies a predetermined power supply voltage to each part of the main circuit of the main board, and an insulation coupling element that insulates and couples the input unit and the output unit in a DC manner And a communication unit for communicating with an external circuit,
The printed circuit board according to claim 1, wherein the main board outputs a predetermined unified signal common to a plurality of models to the mother board, and the mother board outputs a signal converted into a desired range .
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