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

The invention discloses a power generating device by waste heat of automobiles. A plurality of novel alloy bars are attached to the inner side of a circular iron hose of a power generator, coils are mounted between adjacent novel alloy bars and arranged in coil slots formed by adjacent novel alloy bars in a surrounded manner, heat and cold exchange holes are arranged on the novel alloy bars, an elongated rare earth magnet is attached on an outer face side of each alloy bar, magnetic polarities of the rare earth magnets on the face sides of the adjacent novel alloy bars are opposite, the other magnetic polarity surfaces of the rare earth magnets are wrapped on steel pipes, and the power generator is provided with an outer casing. The novel alloy bars are non-magnetic substances at a certain low temperature while are magnetic substances at a certain high temperature. When the rare earth magnets are close to the novel magnetic alloy bars, magnetism of the novel magnetic alloy bars is doubled. The novel alloy bars have magnetism after being heated by tail gas or a heat medium liquid in a cylinder liner of an automobile and have no magnetism after being cooled by cold air with water mist or refrigerant liquid, and high alternating current can be produced in the coils by repeating the above steps and can be used as power force for electric automobiles.

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.

A large-diameter direct-acting high-pressure solenoid valve, including a valve body, a coil cover, a coil, a spring, a valve core, a valve seat and an O-ring, is a coaxial integral structure. The upper part of the solenoid valve is the valve body, and the valve The upper end of the body is a medium inlet connection thread; the middle circle of the valve body is wound with an electromagnetic coil, and the outer side of the electromagnetic coil is a coil cover. Its control method adopts a two-position two-way direct-acting structure, which is opened when the power is turned on and closed when the power is turned off; the fluid medium flows in from the top of the valve body and flows out from the bottom of the valve seat. Compared with the prior art, the present invention has significant advantages: 1. Large diameter, high operating pressure, and long continuous energization time, so it can continuously and stably provide large flow medium; 2. Fast action response speed (≤10ms), The electromagnetic coil of the electromagnetic valve is relatively large, and the cross-sectional area of ​​the valve core is also relatively large, which can generate a large electromagnetic suction force, so the response speed is very fast.

The invention discloses a crosslinked polyethylene insulating fireproof flame-retardant power cable in the technical field of cables. The cable comprises a copper conductor, and the outer wall of thecopper conductor is sleeved by an insulating layer. The outer wall of the insulating layer is sleeved by a shielding layer. The outer wall of the shielding layer is sleeved by a flame-retardant layer,and a heat conduction frame is arranged in the flame retardant layer. The heat conduction frame comprises ferrules, and the ferrules are uniformly arranged in the flame-retardant layer, wherein a connecting rod is welded between the ferrules. Through holes are formed in the outer walls of the ferrules and the connecting rod, and the outer wall of the flame-retardant layer is sleeved by a mineralinsulating layer, wherein the outer wall of the mineral insulating layer is sleeved by an outer protective sleeve. According to the cable, the heat conduction frame is arranged in the flame retardantlayer; when the cable encounters a fire, the local flame-retardant layer is heated to enable the heat conduction frame to be heated to conduct heat, the flame-retardant layer at the heated heat conduction frame is heated to decompose water vapor, the water vapor moves towards the burning damage position of the cable due to pressure, the flame-retardant time of the flame-retardant layer is effectively prolonged, and the normal power-on time of related alarm and safety indication equipment is effectively prolonged.

The invention discloses a power outage protection circuit. The power outage protection circuit includes a first time delay module, a second time delay module, a switching circuit and a load block module; the first end of the first time delay module is connected with the first end of the switching circuit; the second end of the switching circuit is connected with the first end of the second time delay module; the third end of the switching circuit is connected with the first end of the load block module; and the second time delay module is connected with the second end of the load block module. According to the power outage protection circuit of the invention, when power supply is turned off after power outage, switching on or switching off is carried out through the switching circuit, so that the first time delay module, the second time delay module and the load block module work together to prolong the power-on time of a load, namely, after current in the circuit is stable, the load is electrified, and therefore, the load can be protected from being damaged due to excessively high current.

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.