Filter element blockage detection device, oil tank assembly and operation machine

• Main Authors: WU RONGWEI, SHI GUOBAO, LIU XIAO
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The utility model relates to the field of excavators, and provides a filter element blocking detection device, an oil tank assembly and an operation machine. The pair of electric conductors can abut against the bypass valve so that the pair of electric conductors and the bypass valve can form a connecting circuit, and when the bypass valve is closed, the pair of electric conductors make contact with the bypass valve so that the connecting circuit can be connected. When the bypass valve is opened, the at least one electric conductor is separated from the bypass valve, so that the connecting circuit is disconnected; the controller is used for judging whether the filter element is blocked or not according to the on-off condition of the connecting circuit, and when the connecting circuit is connected, the controller judges that the filter element is not blocked; and when the connecting circuit is disconnected, the controller judges that the filter element is blocked. Therefore, the conduction characteristic of th