The invention provides an electric jack with a current limiting protector, which relates to the technical field of mechanical equipment and comprises the current limiting protector, a four-foot double-reset switch, a control motor and a supporting leg main body, the current-limiting protector is connected with the control motor in parallel through the four-pin double-reset switch, and the current-limiting protector, the four-pin double-reset switch and the control motor are detachably mounted on the supporting leg main body; and a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal and a current-limiting protection circuit are distributed on the current-limiting protector. Over-current protection can be carried out on the working current when the electric jack works through the current-limiting protector, the current-limiting action can be achieved within an extremely short time through the current-limiting protection circuit on the current-limiting protector, and damage to internal parts caused by overload during operation of the electric jack is avoided.
本发明提供了一种带有限流保护器的电动千斤顶,涉及机械设备技术领域,包括:限流保护器、四脚双复位开关、控制电机和支腿主体;所述限流保护器通过所述四脚双复位开关与所述控制电机并联,所述限流保护器、所述四脚双复位开关和所述控制电机可拆卸安装在所述支腿主体上;所述限流保护器上分布设置有第一接线端、第二接线端、第三接线端、第四接线端、第五接线端和限流保护电路。本发明能够通过限流保护器来对电动千斤顶工作运行时的工作电流进行过流保护,经过限流保护器上的限流保护电路可以在极短时间内达到限流动作,避免了电动千斤顶由于运行超载对内部零部件造成的损坏。
Electric jack with current limiting protector
一种带有限流保护器的电动千斤顶
2022-03-11
Patent
Elektronische Ressource
Chinesisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |