13results about How to "No power consumption" patented technology

The invention discloses an intelligent water meter and a water meter metering data transmission method and system, which are applied to the field of intelligent water meters and comprise the steps that when water flow pushes an impeller to rotate, a permanent magnet generates a periodic alternating magnetic field; the magnetic induction energy taking element is used for generating pulse energy when the periodic alternating magnetic field is generated; the water flow meter is used for obtaining water flow metering data; the energy conditioning module is used for processing the pulse energy to obtain electric energy with stable voltage; the electric energy is used for supplying power to the storage module, the data identification module and the wireless transmission module; the storage module is used for storing water flow metering data; and the wireless transmission module is used for transmitting the water flow metering data in the storage module to a client. Electric energy generated by the magnetic induction energy taking element is used for supplying power to the wireless transmission module, the data identification module and the storage module, and battery-free water meter metering and data transmission are achieved. And a battery-free, maintenance-free and power-consumption-free solution is provided for the flow metering terminal.

This utility model belongs to the field of fuel cells, specifically relating to a hydrogen subsystem for a hydrogen fuel cell. It includes a hydrogen inlet pipeline, a proportional valve or hydrogen injector, a fuel cell stack, a vortex tube, a gas-water separator, and a hydrogen circulation device. The hydrogen inlet pipeline is sequentially connected to the proportional valve or hydrogen injector and the fuel cell stack. The hydrogen outlet of the fuel cell stack is connected to the vortex tube. The vortex tube has two outlets, one connected to the gas-water separator and the other connected to the hydrogen circulation device. The gas outlet of the gas-water separator is connected to the hydrogen circulation device. The hydrogen circulation device is connected to the hydrogen inlet of the fuel cell stack. In this utility model, the cooling effect of the vortex tube allows the liquid water in the returning hydrogen to condense rapidly, generating more liquid water and achieving better liquid water separation.

The invention discloses a battery heat preservation control device and a control strategy. According to the technical scheme, the battery heat preservation control device is characterized by comprising a conventional battery pack, a bypass BMS, a low-temperature-resistant battery, a temperature control management module, a heating film and at least two paths of temperature sensors; the conventional battery pack comprises a main BMS (Battery Management System) and a main battery cell; the bypass BMS is electrically connected with the low-temperature-resistant battery, the bypass BMS is in communication connection with the temperature control management module, and the low-temperature-resistant battery supplies power to the temperature control management module and the heating film; the heating film is attached to the surface of the main battery cell, and the at least two paths of temperature sensors are respectively arranged at different positions of the main battery cell so as to monitor the temperature of the main battery cell. The system supplies power independently and does not consume the power of a main battery. The device is accurate in temperature control, improves the safety of the battery, avoids local overheating or insufficient heating, and improves the use safety of the battery.

The utility model discloses an unpowered liquid feed anti-sinking pipe which comprises a cylinder with two open ends and a guide blade installed in the cylinder, and limiting steps are arranged in the two ends of the cylinder respectively. The number of the guide blades is at least one, one long edge of each guide blade is fixedly connected to the inner surface of the cylinder in the axial direction, and the guide blades are twisted clockwise or anticlockwise. Specifically, the number of the guide blades is two, and the two guide blades are symmetrically distributed in the cylinder. According to the utility model, liquid feed flows through the interior of the cylinder, rotates while flowing under the diversion action of the two guide blades, and finally flows in the conveying pipe in a spiral flowing manner, so that the problem of sedimentation of high-density substances in the liquid feed is effectively solved.

The invention provides an automotive liquid hydrogen vaporization hydrogenation system and hydrogenation method, belongs to the technical field of hydrogenation, and aims to reduce energy consumption and save cost, the automotive liquid hydrogen vaporization hydrogenation system comprises a liquid hydrogen storage tank, a plurality of hydrogen storage bottles, a vaporization unit, a hydrogenation unit and a control unit; the liquid hydrogen storage tank is connected with the first ends of the multiple hydrogen storage bottles, the first ends of the hydrogen storage bottles are connected with the output end of the vaporization unit, the second ends of the hydrogen storage bottles are connected with the input end of the vaporization unit, the second ends of the hydrogen storage bottles are connected with the input end of the hydrogenation unit, and the output end of the hydrogenation unit is communicated with the hydrogen storage tank; the control unit is configured to control the liquid hydrogen storage tank to be communicated with at least one hydrogen storage bottle in a liquid hydrogen refilling mode; in the vaporization pressurization mode, at least one hydrogen storage bottle is controlled to be communicated with the vaporization unit, so that liquid hydrogen in the hydrogen storage bottle enters the vaporization unit to be vaporized and pressurized into hydrogen, and then the hydrogen returns to the hydrogen storage bottle; in the hydrogenation mode, the hydrogenation unit is controlled to be communicated with the hydrogen storage bottle and the hydrogen storage tank; and the hydrogenation unit is configured to input hydrogen into the hydrogen storage tank.

This utility model relates to the field of electronic circuit technology, specifically to an over-temperature protection circuit for a power-free voltage clamping element. It includes: a voltage clamping element; and a normally open temperature control switch, the temperature-sensing part of which is in close contact with the voltage clamping element, and its contacts are connected in parallel with the voltage clamping element. When the voltage clamping element heats up to the activation temperature of the temperature control switch due to current flow, the temperature control switch closes, and the current is shunted through the temperature control switch, causing the voltage clamping element to stop working and cool down. When the temperature drops to the reset temperature, the temperature control switch opens, and the voltage clamping element resumes operation. This utility model ensures that the voltage clamping element can normally absorb transient overvoltages by opening the temperature control switch. When continuous overvoltage or frequent surges cause the clamping element temperature to rise to the activation threshold of the temperature control switch, the current is shunted through the temperature control switch, and the clamping element stops working and cools down due to the reduced current. When the temperature drops to the reset threshold, the temperature control switch opens, and the clamping element resumes operation, forming a cyclic protection.

The application discloses a special safety protection frame for geological survey, which comprises a support assembly for installing and supporting a total station, the support assembly being fixedly installed on a pre-buried concrete foundation; a plurality of solar photovoltaic panel assemblies for providing electric energy for the equipment, the plurality of solar photovoltaic panel assemblies being fixedly installed on both sides of the support assembly through two mounting columns; and a protective cover for protecting the total station in bad weather. The special safety protection frame for geological survey can protect the total station through the protective cover, avoid blocking the 360-degree scanning visual angle of the total station, clean the surface of the photovoltaic panel of the solar photovoltaic panel assembly for supplying power to the equipment, and reduce the influence of dust on the power generation efficiency of the solar photovoltaic panel assembly.

The utility model discloses a charging control circuit and portable power source. The charging control circuit includes: battery, switch module, comparison circuit, voltage conversion circuit and connector, the first input of comparison circuit is connected with the power port of connector, and the second end of comparison is connected with reference voltage, and the output of comparison circuit is connected with the control end of switch module, and comparison circuit is used for controlling the conduction or shutdown of switch module, the first end of switch module is connected with battery, and the second end of switch unit is connected with the input of voltage conversion circuit, the input of voltage conversion circuit is connected with the power port of connector, and the output of voltage conversion circuit is connected with load. The utility model discloses technical scheme can cut off the power supply loop of battery under the condition of having external power supply connection and the full charge of battery, does not consume the battery capacity, avoids the user misjudgment of the battery not full charge.

The utility model relates to a horizontal sliding type electric reset cold channel skylight which comprises a cabinet body, a skylight sliding guide rail and a gear fixing plate. The skylight sliding guide rails are arranged on the pair of cabinet bodies, and the gear fixing plate is located on a central shaft of the pair of skylight sliding guide rails; and a driving gear, a driven gear and a motor mounting plate are mounted on the gear fixing plate. The horizontal sliding type skylight can reduce the requirement for the height direction size of the cold channel to the maximum extent, and the risks of personnel injury and equipment damage are reduced. When the skylight is opened, an access hole with the maximum size can be formed in the top of the cold channel, and fire-fighting gas can enter the channel more easily; when the skylight is powered off or equipment fails, the skylight can be kept in a closed state, it is guaranteed that the cold channel is always in a sealed state, and cold air waste is avoided; and when the motor is in a non-running state, electric energy is not consumed, so that the energy consumption of the cold channel system is reduced, and the service life of the cold channel system is prolonged.

The utility model provides a heat dissipation device of a computer all-in-one machine, which comprises the computer all-in-one machine, a heat dissipation assembly and an adjusting support assembly, the computer all-in-one machine is connected to the side face of the adjusting support assembly, and the heat dissipation assembly is installed above the adjusting support assembly. The fixing holes in the back face of the all-in-one machine body are exposed, then the adjusting support assembly is fixedly connected with the computer all-in-one machine, then the heat dissipation assembly is installed on the adjusting support assembly, the heat dissipation assembly conducts air draft, heat in the computer all-in-one machine is pumped away, and cooling is achieved. And the space and the power consumption of the all-in-one computer are not occupied, so that the service life of internal components of the all-in-one computer is greatly prolonged.

This invention relates to the field of traffic engineering technology, specifically to a method for preparing and paving prefabricated luminescent concrete road markings. The method includes: preparing prefabricated luminescent concrete marking slabs made of white silicate cement, aggregates, long-afterglow luminescent materials, and admixtures through casting and curing; embedding the slabs into installation grooves formed in the road surface, ensuring their upper surfaces are flush with the road surface; and filling the joints with sealant. This invention employs a prefabricated assembly process, enabling industrialized production and quality control, and solving problems such as construction pollution, poor visibility in rainy and nighttime conditions, and difficult maintenance associated with traditional road markings. The slabs incorporate luminescent materials throughout, resulting in excellent nighttime visibility; the optimized mix ratio gives the slabs both superior mechanical and luminescent properties; the service life is 5-10 times that of traditional road markings; the total life-cycle cost is reduced by 30%-50%; and it is environmentally friendly. It is suitable for newly constructed asphalt pavements, newly constructed cement pavements, and the reconstruction of existing roads.

This invention discloses a horizontally mounted piston-airbag type water hammer protection tank for water hammer protection in water supply systems. The tank body has an inner tank, separating an inner cavity from an outer cavity. The inner tank is further divided into left and right inner cavities by left and right partitions, with a piston cylinder and an airbag cylinder respectively installed at each end. The left and right pistons reciprocate within the cylinders in a sealed manner. The matching left and right telescopic airbags, composed of soft bag-like structures and multi-rod telescopic joints, move intermittently within the airbag cylinders, forming completely isolated air pressure and hydraulic chambers, achieving gas-liquid separation and heat insulation. A float assembly is installed at the bottom of the tank, and a circulating water nozzle is located at the top, connected downstream of the water pump check valve. A bottom-side spray nozzle is aligned upstream of the check valve via a first ejector. A water supply branch pipe connects to the main water supply pipe via an inlet ball valve and a second ejector. This device replaces the traditional waterbag structure with a piston-airbag synergy, solving the defects of waterbag rupture and the need for continuous air replenishment in air compressor-type systems, thus improving the reliability and energy efficiency of water hammer protection.

This invention belongs to the field of wastewater recycling and discloses a boiler continuous drainage recycling and reuse device. The device includes a boiler body, a sealed box, a filter cylinder, and an intermediate water tank. Furthermore, in use, the transmission mechanism does not require an independent motor drive. Utilizing the kinetic energy of the continuous drainage itself, the drainage impacts the arc-shaped plate through a conical guide pipe, driving the rotating rod, sprocket, and connecting rod in a coordinated manner. This, in turn, drives the filtration mechanism to reciprocate and the stirring mechanism to agitate the water. It relies entirely on the kinetic energy of the water flow, consuming no additional electrical energy, thus meeting the requirements for energy conservation and emission reduction. The filtration mechanism, through the connecting rod, drives the support rod and roller seat to periodically push the base plate, causing the filter plate to reciprocate. Surface impurities automatically fall off, eliminating the need for an additional backwashing device.