43results about How to "Avoid electrical safety hazards" patented technology

The invention discloses an H-shaped steel cable erecting tool and an application method thereof. The H-shaped steel cable erecting tool comprises a [-shaped plate, a fixing bolt, a fixing base plate, a cable roller, a fastening buckle plate and a fastening buckle plate clamping piece. The [-shaped plate comprises two flat plates which are parallel to each other and arranged at an interval and a connecting plate used for connecting the two flat plates, screw holes are formed in the flat plates, fixing bolts are fixed to the screw holes, the H-shaped steel cable erecting tool can be fixed to H-shaped steel through the [-shaped plate and the fixing bolts, and the fixing base plate makes contact with the side, away from the flat plates, of the connecting plate and is fixedly connected with the side, away from the flat plates, of the connecting plate; a cable roller is fixed on the fixed substrate, a cable is arranged on the cable roller, a fastening buckle plate clamping piece is fixed on the cable roller, the fixed substrate is connected with the fastening buckle plate through a connecting rod, and the connecting rod and the cable roller are located on the two sides of the cable respectively. The fastening buckle plate can rotate around the connecting rod, and a clamping groove structure matched with the fastening buckle plate clamping piece is arranged on the fastening buckle plate. The erecting tool is easy to manufacture, safe, reliable and high in refitting performance.

The invention relates to the technical field of lighting equipment, and provides a lighting control method, a lighting device and an air conditioner indoor hanging unit. The lighting control method is used for controlling a lighting device, the lighting device comprises a plurality of lamp groups, and the lighting control method comprises the following steps of acquiring image information of a lighting area in real time, determining the position of a to-be-dimmed area according to the image information, according to the position of the to-be-dimmed area, determining a first lamp group which enables the to-be-dimmed area to generate a shadow, and turning down the brightness of the first lamp group, and / or, according to the position of the to-be-dimmed area, determining a second lamp group which does not make the to-be-dimmed area generate a shadow, and increasing the brightness of the second lamp group. According to the lighting control method provided by the invention, the shadow of the to-be-dimmed area can be effectively weakened or eliminated according to the position of the to-be-dimmed area, and the to-be-dimmed area in the lighting area can be dynamically adjusted according to actual needs of a user.

The invention provides a compressor electric box and a compressor with same. The compressor electric box comprises the components of a box body which is provided with a heat source pipe inlet and a heat source pipe outlet; and a heat source pipe which is at least partially arranged in the box body and is provided with a stretching-in end for stretching into the heat source pipe inlet and a stretching-out end for stretching out of the heat source pipe outlet, thereby forming a heat exchange area in the box body. The heat source pipe is provided with the heat exchange area in the box body; the surface temperature of the electric box is increased and furthermore a condensation problem is prevented; thereby preventing an electric potential safety hazard and a metal corrosion problem. The compressor electric box and the compressor with same have advantages of high safety and high reliability.

The invention discloses an automatic packaging method for fry. A safe low-voltage power source and a low-voltage starting switch control a pump to output power, the water outlet flow of the pump is automatically metered, and the water inlet quantity and oxygenation and bagging time of fry bags are accurately controlled. The method comprises the following steps of: pumping water from a pond by using the pump; making the water enter a filter bag through a water pipe and filling the water in the fry bags through a hopper until the required volume is met; continuously conveying the fry bags by using a conveyor belt to an oxygenation machine for oxygenation, and sealing the fry bags; and boxing and transporting. The automatic packaging method for the fry is safe and reliable; and the equipmenthas a simple structure, the original water fetching post can be eliminated, the post coordination contradiction in the quick operating process is avoided, the workers are reduced, the packaging speedis improved by more than 2 times, the error rate of each bag of fry is reduced, the package weight accuracy is over 95 percent and the survival rate of the fry is ensured.

The invention discloses an electric leakage overcurrent high-temperature protection circuit. The electric leakage overcurrent high-temperature protection circuit comprises a power supply input end, a power supply output end, a circuit disconnection device and a main control chip, wherein the power supply input end is provided with an electric leakage detection circuit, the power supply output end is provided with a load overcurrent detection circuit, and the electric leakage detection circuit and the load overcurrent detection circuit are switched into the main control chip; the main control chip is further connected with a temperature detection element; a control part in the circuit disconnection device is switched into the main control chip, and the main control chip is used for triggering the disconnection or connection of the circuit disconnection device through monitoring for the electric leakage detection circuit, the load overcurrent detection circuit and the temperature detection element. In the electric leakage overcurrent high-temperature protection circuit, the electric leakage detection circuit, the load overcurrent detection circuit and the high-temperature protection circuit are detected through the main control chip respectively, and whether the circuit is disconnected by the circuit disconnection device is controlled according to a preset numerical value. The circuit disclosed by the invention is simple in design, and has various detection functions, so that potential safety hazards for electricity application can be effectively prevented.