An excitation protection device with a control circuit switched from a normally-open state to a normally-closed state comprises a shell, a first conductive part and a second conductive part which are insulated from each other are arranged in the shell in a penetrating mode, and the ends, capable of being connected with an external circuit, of the first conductive part and the second conductive part are located outside the shell; an impact device and an excitation driving device are sequentially arranged on one side of the first conductive part in the shell; and the excitation driving device can receive an external excitation signal and then drive the impact device to impact the first conductive piece, and the first conductive piece can be conductively connected with the second conductive piece after being impacted. According to the invention, after the battery pack of the electric vehicle is disconnected from the load loop, the load and the energy release circuit are conducted at the first time, and residual electric energy of an energy storage component in the load is released, so that the operation safety of subsequent maintenance personnel is ensured.
一种控制电路由常开切换常闭的激励保护装置,包括壳体,在所述壳体中穿设有相互绝缘设置的第一导电件和第二导电件,所述第一导电件与第二导电件可与外部电路连接的一端位于所述壳体外部;在位于所述壳体内的所述第一导电件一侧依次设置有冲击装置和激励驱动装置;所述激励驱动装置可接收外部激励信号后驱动所述冲击装置冲击所述第一导电件,所述第一导电件被冲击后可与所述第二导电件导电连接。本发明可以实现在电动车的电池包与负载回路断开后,第一时间将负载与释能电路导通,释放负载中储能元器件的残留电能,以保证后续维修人员的作业安全。
Excitation protection device with control circuit switched from normally-open state to normally-closed state
一种控制电路由常开切换常闭的激励保护装置
2021-08-13
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01H Elektrische Schalter , ELECTRIC SWITCHES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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