Insulation detection device of high-voltage power supply loop, battery pack and electric automobile
Insulation detection device of high-voltage power supply loop, battery pack and electric automobile
- Neue Suche nach: ZHANG LONGCONG
- Neue Suche nach: FENG ZHOUXIA
- Neue Suche nach: ZHANG MIN
- Neue Suche nach: GAO NING
- Neue Suche nach: LI YE
- Neue Suche nach: ZHANG LONGCONG
- Neue Suche nach: FENG ZHOUXIA
- Neue Suche nach: ZHANG MIN
- Neue Suche nach: GAO NING
- Neue Suche nach: LI YE
The invention discloses an insulation detection device of a high-voltage power supply loop, a battery pack and an electric vehicle. The insulation detection device comprises a first switch used for controlling connection and disconnection between the positive electrode of the power battery and a positive electrode contactor, a second switch used for controlling connection and disconnection between the negative electrode of the power battery and a negative electrode contactor, and a third switch connected in parallel with the positive electrode contactor. The fourth switch is connected in parallel with the negative electrode contactor; the voltage detection unit is used for detecting the positive electrode voltage to ground and the negative electrode voltage to ground of the high-voltage power supply loop; the voltage adjustment unit is used for adjusting the positive electrode voltage to ground or the negative electrode voltage to ground of the high-voltage power supply loop; and the detection control unit is used for controlling the on-off of the switch and controlling the voltage adjusting unit so as to obtain the insulation state of the high-voltage power supply loop. Therefore, the whole vehicle insulation detection can be realized when the electric vehicle is in a pure heating working condition, the use safety of the whole vehicle is improved, and the personal safety is ensured.
本发明公开了一种高压供电回路的绝缘检测装置、电池包及电动汽车，其中绝缘检测装置包括：用于控制动力电池的正极与正极接触器的通断的第一开关、用于控制动力电池的负极与负极接触器的通断的第二开关、与正极接触器并联连接的第三开关；与负极接触器并联连接的第四开关、用于检测高压供电回路的正极对地电压和负极对地电压的电压检测单元、用于调整高压供电回路的正极对地电压或负极对地电压的电压调整单元、以及用于控制开关通断和控制电压调整单元以便获取高压供电回路的绝缘状态的检测控制单元。由此，使电动汽车在纯加热工况时能够实现整车绝缘检测，有助于提高整车使用的安全性，保证人身安全。
Dokumentinformationen
Insulation detection device of high-voltage power supply loop, battery pack and electric automobile
高压供电回路的绝缘检测装置、电池包及电动汽车
2022-07-01
Patent
Elektronische Ressource
Chinesisch
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