RELAY FASTENING DISCRIMINATION CIRCUIT

• Main Authors: SUGAWA MASASHI, TANABE YUKINARI, TANAKA HIROMASA
• Format: Patent
• Language: English; Japanese
• Published: 12.08.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; EMERGENCY PROTECTIVE DEVICES; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; RELAYS; SELECTORS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

PROBLEM TO BE SOLVED: To provide a relay fastening discrimination circuit capable of suitably determining whether or not a positive electrode side relay and a negative electrode side relay are fastened in a simple structure.SOLUTION: A relay fastening discrimination circuit comprises: a first circuit CT1 that constructs a first detected circuit DCT1 departing from a positive electrode 10P of a power storage device 10, passing through a positive electrode side relay SMR-B, and returning to a negative electrode 10N of the power storage device 10, and in which the magnitude of a first voltage V1 to be outputted is different depending on cases of flowing a current to the first detected circuit DCT1 because the positive electrode side relay SMR-B is fixed in a closing sate and of not flowing the current to the first detected circuit DCT1 because it becomes an opening state; and a second circuit CT2 that constructs a second detected circuit DCT2 departing from the positive electrode 10P of power storage device 10, passing through a negative electrode side relay SMR-G, and returning to the negative electrode 10N of the power storage device 10, and in which the magnitude of a second voltage V2 to be outputted is different depending on the cases of flowing the current to the second detected circuit DCT2 because the negative electrode side relay SMR-G is fixed in the closing sate and of not flowing the current to the second detected circuit DCT2 because it becomes the opening state.SELECTED DRAWING: Figure 1 【課題】簡易な構成で正極側リレー及び負極側リレーが固着しているか否かを適切に判別することができるリレー固着判別回路を提供する。【解決手段】リレー固着判別回路は、蓄電装置10の正極10Pから出発して、正極側リレーSMR-Bを通り、蓄電装置10の負極10Nに戻る第１被検知回路DCT1を構成し、正極側リレーSMR-Bが閉状態で固定されているために第１被検知回路DCT1に電流が流れる場合と開状態となるために第１被検知回路DCT1に電流が流れない場合とで、出力される第１電圧V1の大きさが異なる第１回路CT1と、蓄電装置10の正極10Pから出発して、負極側リレーSMR-Gを通り、蓄電装置10の負極10Nに戻る第２被検知回路DCT2を構成し、負極側リレーSMR-Gが閉状態で固定されているために第２被検知回路DCT2に電流が流れる場合と開状態となるために第２被検知回路DCT2に電流が流れない場合とで、出力される第２電圧V2の大きさが異なる第２回路CT2とを備える。【選択図】図１