JP3110462U - DC power automatic detection device - Google Patents

DC power automatic detection device Download PDF

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JP3110462U
JP3110462U JP2005000727U JP2005000727U JP3110462U JP 3110462 U JP3110462 U JP 3110462U JP 2005000727 U JP2005000727 U JP 2005000727U JP 2005000727 U JP2005000727 U JP 2005000727U JP 3110462 U JP3110462 U JP 3110462U
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power supply
circuit
load
detection device
automatic detection
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林讃煌
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Quitewin Tech Corp
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
    • H02H3/202—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage for dc systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators

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  • Protection Of Static Devices (AREA)

Abstract

【課題】 各種負荷条件において直流電源制御の稼働状態を検出して、直流電源が異常のときに、直流電源とその関連作業システムを過電流から保護すること。
【解決手段】 調整可能なタイマー、電流検出と過電流保護装置、電圧検出と過電圧保護装置、過負荷保護装置を含む。調整可能なタイマーは、時間週期のサイクルを設定し、直流電源の稼働状況を自動検出する。その電流検出と過電流保護装置はレベルの比較・参照と電流測定に用いる。異常のときに、稼働中の電気回路を閉鎖し、直流電源装置とその関連の作業システムを過電流から保護する。
【選択図】 図１
PROBLEM TO BE SOLVED: To detect an operating state of DC power supply control under various load conditions and protect the DC power supply and its related work system from overcurrent when the DC power supply is abnormal.
An adjustable timer, a current detection and overcurrent protection device, a voltage detection and overvoltage protection device, and an overload protection device are included. Adjustable timer sets cycle of time period and automatically detects the operating status of DC power supply. The current detection and overcurrent protection device is used for level comparison / reference and current measurement. In the event of an abnormality, the operating electrical circuit is closed to protect the DC power supply and its associated work system from overcurrent.
[Selection] Figure 1

Description

本考案は、直流電源を検出して表示する直流電源自動検出装置に関し、特に複数の指定された負荷条件について直流電池の電源状態を検出して表示し、さらに直流電源を保護する、直流電源自動検出装置に関するものである。   The present invention relates to a DC power supply automatic detection device that detects and displays a DC power supply, and particularly detects and displays a DC battery power supply status for a plurality of specified load conditions, and further protects the DC power supply. The present invention relates to a detection device.

直流電源装置は産業及び生活上で多数使用されている。直流電源装置が交流電気供給システムとの間のエネルギー変換に関わることも極めて広く知られている。
直流電源の過負荷によるシステムダウンを防止するため、直流電源に対する検出、保護電気回路はこれまで長く使われてきた。 Many DC power supply devices are used in industry and daily life. It is also very widely known that a DC power supply device is involved in energy conversion with an AC electricity supply system.
In order to prevent the system from being down due to overload of the DC power supply, the detection and protection electric circuit for the DC power supply has been used for a long time.

しかし、従来の直流電源に対する検出、保護技術にあっては、それぞれの直流電源システムの稼働状態に応じて最適化するための調整を行わなければならなかった。   However, in the conventional detection and protection techniques for DC power supplies, adjustments for optimization must be made according to the operating state of each DC power supply system.

本考案は以上の点に鑑みて成されたもので、その目的とするところは、各種の負荷条件における直流電源の動作状態の検出して、直流電源システム状態を表示することにより、直流電源システムの故障を防止することができる直流電源自動検出装置を提供することにある。
また本考案の目的は、車両用直流電源装置の負荷を切り離すことにより、発電機の異常や、交通事故又は電気回路の短絡による過電圧、過電流、過負荷の問題を解決できて、車両用電源保護により良い選択を提供できる直流電源自動検出装置を提供することにある。 The present invention has been made in view of the above points. The object of the present invention is to detect the operating state of the DC power supply under various load conditions and display the DC power supply system state, thereby providing a DC power supply system. It is an object of the present invention to provide an automatic DC power supply detection device that can prevent a malfunction of the DC power supply.
Another object of the present invention is to solve the problems of overvoltage, overcurrent, and overload caused by an abnormality in a generator, a traffic accident or a short circuit of an electric circuit by disconnecting the load of the DC power supply for the vehicle. An object of the present invention is to provide an automatic DC power supply detection device capable of providing a better selection for protection.

本願の第１考案は、電気回路内蔵の保護装置により過電圧、過電流及び過負荷から保護する直流電源自動検出装置であって、電子式時間計数装置と電子式乗数装置を併有していて、テスト周期の調整が可能なタイマー回路と、電源検出に合わせて負荷と表示状態の切り換え機能を有する電子式切換回路とにより構成し、前記電子式切換回路は、様々なシステム形態の直流電源を自動検出すると共に、あらかじめ設定した負荷条件に沿った等量負荷と比較して電源検出表示装置に直流電源の状態を表示する複数個の負荷装置と、電圧状態の処理に使用される電圧信号検出装置と、電流状態の処理に使用される電流信号検出装置と、直流電源とその関連作業システムを保護する、直流電源保護装置とにより構成し、前記直流電源保護装置は、直流電源と関連作業システムを過電圧から保護する過電圧保護装置と、直流電源と関連作業システムを過電流から保護する過電流保護装置と、直流電源と関連作業システムを過負荷から保護する過負荷保護装置とにより構成し、直流電源が異常のときに、稼働中の電気回路を閉鎖し、直流電源とその関連作業システムを過電流から保護するように構成した、直流電源自動検出装置である。
本願の第２考案は、前記第１考案において、前記直流電源は、電池システムであることを特徴とする、直流電源自動検出装置である。
本願の第３考案は、前記第１考案において、前記直流電源は、車両用電池システム（バッテリーとダイナモによる車両用電源システム）であることを特徴とする、直流電源自動検出装置である。
本願の第４考案は、前記第１考案において、前記負荷は、受動負荷システム（負荷を任意に設定して付与できるシステム）であることを特徴とする、直流電源自動検出装置である。
本願の第５考案は、前記第２考案において、前記負荷は、受動負荷システム（負荷を任意に設定して付与できるシステム）であることを特徴とする、直流電源自動検出装置である。
本願の第６考案は、前記第３考案において、前記負荷は、受動負荷システム（負荷を任意に設定して付与できるシステム）であることを特徴とする、直流電源自動検出装置である。 The first device of the present application is a direct-current power supply automatic detection device that protects against overvoltage, overcurrent, and overload by means of a protection device built in an electric circuit, and has both an electronic time counting device and an electronic multiplier device, It is composed of a timer circuit that can adjust the test cycle and an electronic switching circuit that has a function of switching the load and the display state in accordance with the power supply detection. The electronic switching circuit automatically supplies DC power supplies in various system forms. A plurality of load devices for detecting and displaying the state of the DC power source on the power source detection display device in comparison with an equal load according to a preset load condition, and a voltage signal detection device used for processing the voltage state And a current signal detection device used for processing the current state, and a direct current power supply protection device that protects the direct current power supply and its related work system. An overvoltage protection device for protecting the power source and related work system from overvoltage, an overcurrent protection device for protecting the DC power supply and related work system from overcurrent, and an overload protection device for protecting the DC power supply and related work system from overload When the DC power supply is abnormal, the operating electric circuit is closed to protect the DC power supply and its related work system from overcurrent.
A second device of the present application is the automatic DC power supply detection device according to the first device, wherein the DC power source is a battery system.
A third device of the present application is the DC power supply automatic detection device according to the first device, wherein the DC power supply is a vehicle battery system (vehicle power supply system using a battery and a dynamo).
A fourth device of the present application is the direct-current power supply automatic detection device according to the first device, wherein the load is a passive load system (a system in which a load can be arbitrarily set and applied).
A fifth device of the present application is the direct-current power supply automatic detection device according to the second device, wherein the load is a passive load system (a system in which a load can be arbitrarily set and applied).
A sixth device of the present application is the DC power supply automatic detection device according to the third device, wherein the load is a passive load system (a system in which a load can be arbitrarily set and applied).

本考案に係る直流電源自動検出装置は、各種の負荷条件における直流電源の動作状態の検出して、直流電源システム状態を表示することにより、直流電源システムの故障を防止することができる。
また車両用直流電源装置の負荷を切り離すことにより、発電機の異常や、交通事故又は電気回路の短絡による過電圧、過電流、過負荷の問題を解決できて、車両用電源保護により良い選択を提供できる直流電源自動検出装置を提供することができる。 The DC power supply automatic detection device according to the present invention can prevent a DC power supply system failure by detecting the operating state of the DC power supply under various load conditions and displaying the DC power supply system state.
Also, by disconnecting the load of the DC power supply for the vehicle, it is possible to solve the problems of overvoltage, overcurrent, and overload due to generator abnormalities, traffic accidents or electrical circuit short circuit, and provide better choice for vehicle power supply protection It is possible to provide a DC power supply automatic detection device that can be used.

図１に考案の好ましい実施例を示す。
図示した時間計数回路（タイマー回路）１０は、時間生成電気回路１０１、カウンター電気回路１０２、およびＡＮＤロジックゲート１０３を含む。
その電気的な接続関係について以下に説明する。
時間生成電気回路１０１は固定の基準時間を生成し、その時間生成電気回路１０１の出力端はカウンター電気回路１０２のカウンター入力端にカップリングさせ、カウンター電気回路１０２の出力端はＡＮＤロジックゲート１０３の入力端にカップリングさせる。
この設計例において、装置をより単純に設計するため、その時間生成電気回路１０１により生成した固定の基準時間Ｔ'を基準とし、カウンター電気回路１０２に合わせた調整可能なテスト周期Ｔ＝ｎ Ｔ'を生成して、装置が要求する様々な操作条件に合わせる。 FIG. 1 shows a preferred embodiment of the device.
The illustrated time counting circuit (timer circuit) 10 includes a time generation electric circuit 101, a counter electric circuit 102, and an AND logic gate 103.
The electrical connection relationship will be described below.
The time generation electric circuit 101 generates a fixed reference time, the output terminal of the time generation electric circuit 101 is coupled to the counter input terminal of the counter electric circuit 102, and the output terminal of the counter electric circuit 102 is connected to the AND logic gate 103. Coupling to the input end.
In this design example, in order to design the device more simply, an adjustable test period T = n T ′ adjusted to the counter electric circuit 102 with the fixed reference time T ′ generated by the time generating electric circuit 101 as a reference. To match various operating conditions required by the device.

この設計において、Ｔ＝ｎ Ｔ'のとき、ＡＮＤロジックゲート２０１は装置の開閉切換に使用する。
ＡＮＤロジックゲート２０１の入力端は、ＡＮＤロジックゲート１０３、電圧検出、過電圧保護電気回路３０の電圧異常保護電気回路３０２の出力端、電流検出と過電流保護電気回路４０の電流異常保護電気回路４０４の出力端と電気的なカップリングにより、操作回路２０を形成する。
その電気操作回路２０は、ＡＮＤロジックゲート１０３の電気的カップリング場所より、時間計数回路１００の入力信号を入手した後、装置を導通させ、テストを開始する。 In this design, when T = n T ′, the AND logic gate 201 is used to switch the device open and close.
The input terminal of the AND logic gate 201 is the output terminal of the AND logic gate 103, voltage detection, voltage abnormality protection electric circuit 302 of the overvoltage protection electric circuit 30, current detection and overcurrent protection electric circuit 404 of the overcurrent protection electric circuit 40. An operation circuit 20 is formed by electrical coupling with the output end.
The electrical operation circuit 20 obtains the input signal of the time counting circuit 100 from the electrical coupling location of the AND logic gate 103, and then conducts the device and starts the test.

その電圧検出と電圧異常保護電気回路３０は、電圧検出電気回路３０１、電圧異常保護電気回路３０２、過電圧閉鎖性電気回路３０３、および低電圧閉鎖性電気回路３０４を含む。
電圧検出電気回路３０１は、負荷電圧を検出して比較を行う。
電圧検出電気回路３０１の入力端は、直流電源連接の負荷と、参照電圧電気回路６０の電圧安定回路６０１の出力端とカップリングする。
電圧異常保護電気回路３０２は、直流電源を検出して保護する。
電圧異常保護電気回路３０２の入力端は、直流電圧と参照電圧電気回路６０の電圧安定回路６０１の出力端とカップリングする。 The voltage detection and voltage abnormality protection electric circuit 30 includes a voltage detection electric circuit 301, a voltage abnormality protection electric circuit 302, an overvoltage closing electric circuit 303, and a low voltage closing electric circuit 304.
The voltage detection electric circuit 301 detects the load voltage and performs comparison.
The input terminal of the voltage detection electric circuit 301 is coupled to the load connected to the DC power supply and the output terminal of the voltage stabilization circuit 601 of the reference voltage electric circuit 60.
The voltage abnormality protection electric circuit 302 detects and protects the DC power supply.
The input terminal of the voltage abnormality protection electric circuit 302 is coupled to the output terminal of the voltage stabilizing circuit 601 of the DC voltage and reference voltage electric circuit 60.

電圧検出電気回路３０１は、負荷電圧と参照電圧Ｖｒｅｆのレベル比較を行い、比較した結果、その値が基準を超える場合に、警報(warning signal)を発するため過電圧閉鎖性電気回路３０３に伝送する。
これに伴い、過電圧信号灯ＬＥＤ１が点灯し、過電圧閉鎖性電気回路３０３により、システム稼働を中止して負荷を保護し、並びに切断信号(cut-off signal)を電気操作回路２０のＡＮＤロジックゲート２０１に伝送すると同時、テストプロセスを中止させた後、放電モードに切り換えて、電池の焼損を防止する。 The voltage detection electric circuit 301 compares the levels of the load voltage and the reference voltage Vref, and if the comparison result shows that the value exceeds the standard, the voltage detection electric circuit 301 transmits the warning signal to the overvoltage closing electric circuit 303.
Accordingly, the overvoltage signal lamp LED1 is turned on, the system operation is stopped by the overvoltage closing electric circuit 303, the load is protected, and a cut-off signal is sent to the AND logic gate 201 of the electric operation circuit 20. At the same time of transmission, the test process is stopped and then switched to the discharge mode to prevent battery burnout.

電圧異常保護電気回路３０２は負荷電圧と参照電圧Ｖｒｅｆのレベルを比較し、比較した結果が基準値を下回るとき、中止信号を電気操作回路２０のＡＮＤロジックゲート２０１に伝送して、テストプロセスを中止させるか、又は放電モードに切り換えて、電池の焼損を防止する。   The voltage abnormality protection electric circuit 302 compares the levels of the load voltage and the reference voltage Vref, and when the comparison result falls below the reference value, transmits a stop signal to the AND logic gate 201 of the electric operation circuit 20 to stop the test process. Or switch to discharge mode to prevent battery burnout.

電圧検出電気回路３０１はＯＰアンプ(amplifier)でもよい。
過電圧保護電気回路３０２はＯＰアンプでもよい。
ただし、電圧検出電気回路３０１と過電圧保護電気回路３０２はＯＰアンプの他に、電圧比較・増幅の差動式電気回路に使用されるいずれかの部品でも良い。
中止のための電気回路３０３は４０１３ＩＣを使用してもよい。
ただし、閉鎖性電気回路３０３は４０１３ＩＣの他に、システム閉鎖性(latch)の電気回路に使用されるいずれかの部品でも良い。 The voltage detection electric circuit 301 may be an OP amplifier.
The overvoltage protection electric circuit 302 may be an OP amplifier.
However, the voltage detection electric circuit 301 and the overvoltage protection electric circuit 302 may be any components used in a differential electric circuit for voltage comparison / amplification in addition to the OP amplifier.
4013 IC may be used for the electric circuit 303 for the suspension.
However, the closing electrical circuit 303 may be any part used in the system closing electrical circuit in addition to the 4013 IC.

電流検出と過電流保護電気回路４０は電流検出回路４０１、電流増幅回路４０２、電流比較回路４０３を含む。
さらに、電流比較回路は一次電流比較回路４０３１、二次電流比較回路４０３２、電流異常保護電気回路４０４、電気選択回路４０５を含む。
電流検出回路４０１の入力端は直流電流にカップリングし、その出力端は電流増幅回路４０２の入力端にカップリングする。
電流増幅回路４０２の入力端は、電流検出回路４０１の出力端にカップリングし、その出力端は電流比較回路４０３にカップリングする。
電流比較回路４０３の一次電流比較回路４０３１の入力端は電流増幅回路４０２の出力端にカップリングし、その出力端と該電気選択回路４０５の入力端にカップリングする。
電流比較回路４０３の二次電流比較回路４０３２の入力端は、電流増幅回路４０２の出力端にカップリングし、その電流比較回路４０３の二次電流比較回路４０３２の出力端は、電気選択回路４０５の入力制御側とカップリングする。
過電流保護電気回路４０４の入力端は、電流増幅回路４０２の入力端にカップリングし、その過電流保護電気回路４０４の出力端は、ロジックゲート２０１の一端にカップリングする。
電気選択回路４０５の入力制御側と電流比較回路４０３１の出力端にカップリングし、電気選択回路４０５入力制御側と電流比較回路４０３２の出力端にカップリングする。
電気選択器４０５の入力端と直流電源連接負荷側電圧は接続されている。
電気選択器４０５の出力は入力端の信号により、三つの出力と負荷それぞれに、比較回路５０１、５０２、５０３とカップリングする。 The current detection and overcurrent protection electric circuit 40 includes a current detection circuit 401, a current amplification circuit 402, and a current comparison circuit 403.
Further, the current comparison circuit includes a primary current comparison circuit 4031, a secondary current comparison circuit 4032, a current abnormality protection electric circuit 404, and an electric selection circuit 405.
The input terminal of the current detection circuit 401 is coupled to a direct current, and the output terminal is coupled to the input terminal of the current amplifier circuit 402.
The input terminal of the current amplification circuit 402 is coupled to the output terminal of the current detection circuit 401, and the output terminal is coupled to the current comparison circuit 403.
The input terminal of the primary current comparison circuit 4031 of the current comparison circuit 403 is coupled to the output terminal of the current amplification circuit 402, and the output terminal is coupled to the input terminal of the electrical selection circuit 405.
The input terminal of the secondary current comparison circuit 4032 of the current comparison circuit 403 is coupled to the output terminal of the current amplification circuit 402, and the output terminal of the secondary current comparison circuit 4032 of the current comparison circuit 403 is coupled to the electrical selection circuit 405. Coupling with the input control side.
The input terminal of the overcurrent protection electric circuit 404 is coupled to the input terminal of the current amplifier circuit 402, and the output terminal of the overcurrent protection electric circuit 404 is coupled to one terminal of the logic gate 201.
Coupling is performed on the input control side of the electric selection circuit 405 and the output terminal of the current comparison circuit 4031, and coupling is performed on the input control side of the electric selection circuit 405 and the output terminal of the current comparison circuit 4032.
The input terminal of the electric selector 405 and the DC power supply load side voltage are connected.
The output of the electrical selector 405 is coupled to the comparison circuits 501, 502, and 503 for the three outputs and the load, respectively, according to the signal at the input end.

電流検出回路４０１は直流電源の電源信号を取得し、コイルの誘導により電流信号を電圧信号に変換させる。
変換比率は一次側、二次側コイルによって決める。
さらに、電流電圧の変換機能により電気回路の隔離効果を果たして、電気制御回路の電力過負荷の影響を避けると同時に、信号伝送と電気回路の保護目的を果たす。
電流増幅回路４０２のリニアアンプは、電流検出回路４０１の検出信号をキャッチして、電流比較回路４０３による信号の比較と分類に提供するほか、出力抵抗を引き下げて、エネルギーの伝送効率を増やす。
電流比較回路４０３は電波を分類・分析するため、一次電流比較回路４０３１、二次電流比較回路４０３２を含む。
さらに、負荷電気選択回路４０５に合わせて負荷値を決定し、相対的な比較線路に相応する。
負荷電気選択回路４０５はレベル分類電気回路であり、電流比較電気回路４０３の電圧レベルを分類して選択した上で、その信号を負荷の相対的な電気回路５０に送る。
電流検出回路４０１は、ホールセンサ(Hall sensor)を用いる。
ただし、電波検出回路４０１はホールセンサの他、電流電圧の変換回路に使用されるいずれかの部品でも良い。
電流増幅回路４０２と電流比較回路４０３は、一次電流比較回路４０３１、二次電流比較回路４０３２、過電流保護電気回路４０４を含み、ＯＰアンプを使用する。
ただし、ＯＰアンプの他、電圧の比較増幅に使用されている差動式電気回路でも良い。
負荷電気選択回路４０５は、４０５１ＩＣを使用する。
ただし、負荷電気選択回路４０５は４０５１ＩＣの他、電流分類の電気回路に使用されるいずれかの部品でも良い。
４０５１ＩＣの真理値表における電流は、以下に分類される。
電流が１０アンペア未満のとき、無負荷と見なされる。
（１）電流が１０アンペア以上で２０アンペア未満のときは、一次負荷と見なされる。
（２）電流が２０アンペア以上で３０アンペア未満のときは、二次負荷と見なされる。
（３）電波が３０アンペア以上で５０アンペア未満のときは、三次負荷と見なされる。
（４）電流が５０アンペアを超えた場合、電池故障信号ＬＥＤ２を点灯させる。 The current detection circuit 401 acquires a power supply signal of a DC power supply, and converts the current signal into a voltage signal by induction of a coil.
The conversion ratio is determined by the primary side and secondary side coils.
Furthermore, the current / voltage conversion function serves to isolate the electric circuit, avoiding the influence of power overload of the electric control circuit, and at the same time serving the purpose of signal transmission and protection of the electric circuit.
The linear amplifier of the current amplifier circuit 402 catches the detection signal of the current detection circuit 401 and provides it for signal comparison and classification by the current comparison circuit 403, and also lowers the output resistance to increase the energy transmission efficiency.
The current comparison circuit 403 includes a primary current comparison circuit 4031 and a secondary current comparison circuit 4032 for classifying and analyzing radio waves.
Furthermore, a load value is determined in accordance with the load electricity selection circuit 405, and corresponds to a relative comparison line.
The load electrical selection circuit 405 is a level classification electrical circuit, which classifies and selects the voltage level of the current comparison electrical circuit 403 and sends the signal to the relative electrical circuit 50 of the load.
The current detection circuit 401 uses a Hall sensor.
However, the radio wave detection circuit 401 may be any component used for a current-voltage conversion circuit in addition to the Hall sensor.
The current amplification circuit 402 and the current comparison circuit 403 include a primary current comparison circuit 4031, a secondary current comparison circuit 4032, and an overcurrent protection electric circuit 404, and use an OP amplifier.
However, in addition to the OP amplifier, a differential electric circuit used for voltage comparison amplification may be used.
The load electricity selection circuit 405 uses a 4051 IC.
However, the load electrical selection circuit 405 may be any component used in the current classification electrical circuit in addition to the 4051 IC.
The currents in the truth table of 4051 IC are classified as follows.
When the current is less than 10 amps, it is considered unloaded.
(1) When the current is 10 amperes or more and less than 20 amperes, it is regarded as a primary load.
(2) When the current is 20 amps or more and less than 30 amps, it is regarded as a secondary load.
(3) When the radio wave is 30 amperes or more and less than 50 amperes, it is regarded as a tertiary load.
(4) When the current exceeds 50 amperes, the battery failure signal LED2 is turned on.

負荷の相応電気回路５０は、一次負荷相応比較回路５０１、二次負荷相応比較回路５０２、および三次負荷相応比較回路５０３を含む。
その中、各次の負荷とも一組以上の表示電気回路と負荷電阻を含まれる。
負荷状態が異なるとき、電気選択回路４０５で比較を行い、前記の電流状態と照らし合わせて相応の電気回路を決定する。
相対の負荷の電圧に相応する信号が負荷に相応する比較器回路５０１、５０２、５０３のいずれに送られたとき、負荷電圧が参照する電圧のレベルより低いとき、相応した比較器が警報を低電圧閉鎖性回路３０４に発信して、電池故障信号灯ＬＥＤ２が点灯する。 The load corresponding electrical circuit 50 includes a primary load corresponding comparison circuit 501, a secondary load corresponding comparison circuit 502, and a tertiary load corresponding comparison circuit 503.
Among them, each subsequent load includes one or more sets of display electric circuits and load electric current interruptions.
When the load states are different, a comparison is made by the electric selection circuit 405, and a corresponding electric circuit is determined in comparison with the current state.
When a signal corresponding to the voltage of the relative load is sent to any of the comparator circuits 501, 502, 503 corresponding to the load, when the load voltage is lower than the reference voltage level, the corresponding comparator reduces the alarm. Transmitting to the voltage closing circuit 304, the battery failure signal lamp LED2 is lit.

参照電圧電気回路６０は電圧安定回路６０１を含み、システムに安定した参照電圧Ｖｒｅｆを提供する。   The reference voltage electrical circuit 60 includes a voltage stabilization circuit 601 and provides a stable reference voltage Vref to the system.

本考案のより良い実施例の電気回路図Electrical circuit diagram of a better embodiment of the present invention 本考案のフローチャートFlow chart of the present invention 本考案のロジックフロー図Logic flow diagram of the present invention

符号の説明Explanation of symbols

１０・・・・・・時間計数回路（タイマー回路）
１０１・・・・・時間生成電気回路
１０２・・・・・カウンター電気回路
１０３・・・・・ＡＮＤロジックゲート
２０・・・・・・電気操作回路
２０１・・・・・ＡＮＤロジックゲート
３０・・・・・・過電圧保護電気回路
３０１・・・・・電圧検出電気回路
３０２・・・・・電圧異常保護電気回路
３０３・・・・・過電圧閉鎖性電気回路
３０４・・・・・低電圧閉鎖性電気回路
４０・・・・・・過電流保護電気回路
４０１・・・・・電流検出回路
４０２・・・・・電流増幅回路
４０３・・・・・電流比較回路
４０３１・・・・一次電流比較回路
４０３２・・・・二次電流比較回路
４０４・・・・・電流異常保護電気回路
４０５・・・・・電気選択回路
５０・・・・・・相応電気回路（負荷装置）
５０１・・・・・一次負荷相応比較器
５０２・・・・・二次負荷相応比較器
５０３・・・・・三次負荷相応比較器
６０・・・・・・参照電圧電気回路
６０１・・・・・電圧安定回路 10 .... Time counting circuit (timer circuit)
DESCRIPTION OF SYMBOLS 101 ... Time generation electric circuit 102 ... Counter electric circuit 103 ... AND logic gate 20 ... Electric operation circuit 201 ... AND logic gate 30 ... · · · Overvoltage protection electrical circuit 301 · · · Voltage detection electrical circuit 302 · · · Voltage abnormality protection electrical circuit 303 · · · Overvoltage closure electrical circuit 304 · · · Undervoltage closure Electric circuit 40 ··· Overcurrent protection electric circuit 401 ··· Current detection circuit 402 ··· Current amplification circuit 403 ··· Current comparison circuit 4031 · · · Primary current comparison circuit 4032... Secondary current comparison circuit 404... Current abnormality protection electrical circuit 405... Electric selection circuit 50... Corresponding electrical circuit (load device)
501... Primary load corresponding comparator 502... Secondary load corresponding comparator 503. Tertiary load corresponding comparator 60... Reference voltage electric circuit 601.・ Voltage stabilization circuit

Claims (6)

電気回路内蔵の保護装置により過電圧、過電流及び過負荷から保護する直流電源自動検出装置であって、
電子式時間計数装置と電子式乗数装置を併有していて、テスト周期の調整が可能なタイマー回路と、
電源検出に合わせて負荷と表示状態の切り換え機能を有する電子式切換回路とにより構成し、
前記電子式切換回路は、様々なシステム形態の直流電源を自動検出すると共に、あらかじめ設定した負荷条件に沿った等量負荷と比較して電源検出表示装置に直流電源の状態を表示する複数個の負荷装置と、
電圧状態の処理に使用される電圧信号検出装置と、
電流状態の処理に使用される電流信号検出装置と、
直流電源とその関連作業システムを保護する、直流電源保護装置とにより構成し、
前記直流電源保護装置は、
直流電源と関連作業システムを過電圧から保護する過電圧保護装置と、
直流電源と関連作業システムを過電流から保護する過電流保護装置と、
直流電源と関連作業システムを過負荷から保護する過負荷保護装置とにより構成し、
直流電源が異常のときに、稼働中の電気回路を閉鎖し、直流電源とその関連作業システムを過電流から保護するように構成した、
直流電源自動検出装置。 A DC power supply automatic detection device that protects against overvoltage, overcurrent and overload by a protection device with built-in electric circuit,
A timer circuit that has both an electronic time counting device and an electronic multiplier device and is capable of adjusting the test cycle;
Consists of an electronic switching circuit having a load and display state switching function in accordance with power supply detection,
The electronic switching circuit automatically detects DC power supplies of various system forms, and displays a plurality of DC power supply states on a power supply detection display device in comparison with an equal load according to a preset load condition. A load device;
A voltage signal detection device used for processing the voltage state;
A current signal detector used to process the current state;
Consists of a DC power supply protection device that protects the DC power supply and related work systems,
The DC power supply protection device is
An overvoltage protection device for protecting the DC power supply and related work system from overvoltage;
An overcurrent protection device for protecting the DC power supply and related work system from overcurrent;
Consists of an overload protection device that protects the DC power supply and related work systems from overload,
When the DC power supply is abnormal, the operating electrical circuit is closed, and the DC power supply and related work system are protected from overcurrent.
DC power supply automatic detection device. 前記直流電源は、電池システムであることを特徴とする、請求項１に記載の直流電源自動検出装置。   The DC power supply automatic detection device according to claim 1, wherein the DC power supply is a battery system. 前記直流電源は、車両用電池システムであることを特徴とする、請求項１に記載の直流電源自動検出装置。   The DC power supply automatic detection device according to claim 1, wherein the DC power supply is a vehicle battery system. 前記負荷は、受動負荷システムであることを特徴とする、請求項１に記載の直流電源自動検出装置。   The DC power automatic detection device according to claim 1, wherein the load is a passive load system. 前記負荷は、受動負荷システムであることを特徴とする、請求項２に記載の直流電源自動検出装置。   The DC power supply automatic detection device according to claim 2, wherein the load is a passive load system. 前記負荷は、受動負荷システムであることを特徴とする、請求項３に記載の直流電源自動検出装置。
The DC power supply automatic detection device according to claim 3, wherein the load is a passive load system.
JP2005000727U 2004-12-24 2005-02-16 DC power automatic detection device Expired - Fee Related JP3110462U (en)

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