32results about How to "Extend power-on time" patented technology

The invention relates to a fireproof control cable which comprises a sheath, an inner protective layer, outer insulating layers, outer conductors, radial interlayers, a main fireproof layer, an inner insulating layer and an inner conductor, wherein the axis of the main fireproof layer coincides with the axis of the sheath, the inner insulating layer is fixed in the main fireproof layer, the radial interlayers are evenly and symmetrically installed in an annular space formed by the main fireproof layer and the inner protective layer, and the outer insulating layers are evenly and symmetrically distributed in the fan-shaped space formed by the radial partition interlayers, the inner protective layer and the main fireproof layer. The fireproof control cable has the advantages of being reasonable in structural design, convenient to machine and high in durability. According to the fireproof control cable, mutual combustion is avoided, electrifying time can be guaranteed and prolonged when the cable burns in a high-temperature and flame environment, and therefore, control requirements in an emergency are met, the tenacity of the cable is improved, cable surface breakage or internal conductor breakage is avoided when the cable is bent or pulled, and the service life of the cable is prolonged.

The invention discloses an electric kettle which comprises a kettle body, a power-off sensing action module and a steam flow execution module. The power-off sensing action module is arranged to open a conductive loop formed between the electric kettle and a power source when the temperature of the power-off sensing action module is increased to the preset power-off temperature, and the steam flow execution module is arranged to be used for controlling the amount of steam flowing to the power-off sensing action module so as to at least prolong the time required when the temperature of the power-off sensing action module is increased to the preset power-off temperature. According to the electric kettle, the amount of steam flowing to the power-off sensing action module is controlled through the steam flow execution module, the time point of sensing the steam temperature of the power-off sensing action module is lagged behind or the temperature of the power-off sensing action module is increased slowly, and the power-on time after the electric kettle is boiling is prolonged, so that the boiling time of the electric kettle is prolonged, and healthy and safe drinking water can be provided for a user.

The invention discloses an intelligent low-voltage distribution box. The intelligent low-voltage distribution box comprises a box body, an execution module, a control module, an electric quantity information detection module, an information acquisition terminal, a line circuit breaker, a line circuit breaker shunt release and a line circuit breaker auxiliary switch, wherein the execution module isconnected with the control module, and the execution module and the control module are arranged in the box body; the control module is connected with the information acquisition terminal by adoptinga wired or wireless mode; the line circuit breaker and the electric quantity information detection module are arranged at the line outlet side of a branch line of the low-voltage distribution box; theline circuit breaker is mounted on the branch line; the line circuit breaker shunt release is connected with the line circuit breaker; the electric quantity information detection module is mounted onthe branch line, and the electric quantity information detection module is mounted at the line outlet side of the line circuit breaker; and the electric quantity information detection module on the branch line is connected with the execution module. The low-voltage distribution box disclosed by the invention can effectively monitor the working state of a subordinate branch circuit and can performselective switching-off outage when a fault happens.