3results about How to "Achieve direct control" patented technology

The application provides a refrigerator. The refrigerator comprises an inner container, a mounting piece, a vacuum drawer, a magnetic field device and an electric connecting piece. The vacuum drawer comprises a drawer body and a cover. The cover and the drawer body are movably connected. The magnetic field device is arranged on the outer periphery of the vacuum drawer and is used for generating a magnetic field. The electric connecting piece comprises a power supply part and an electric connecting part. The power supply part is located in the storage chamber. The power supply part is arranged on the side of the mounting piece away from the opening of the inner container. The power supply part is used for electrically connecting with an external power supply. Part of the electric connecting part is located in the mounting cavity. The electric connecting part is arranged on the side of the vacuum drawer away from the opening of the inner container. The electric connecting part is electrically connected with the magnetic field device. The power supply part and the electric connecting part are used for butt joint in the pulling direction of the vacuum drawer. The power supply part and the electric connecting part are butt joint through the pulling of the vacuum drawer, so that the external power supply supplies power to the magnetic field device. The power supply structure is simplified through the butt joint.

This application provides a method for the targeted reduction and resource recycling of platinum in waste liquid. A weak reducing agent with a standard electrode potential between 0 and 0.7 V is slowly added dropwise to the solution to be treated. The solution is stirred while maintaining the pH value between 1 and 3 at an environment of 30℃-60℃. 4+ Directional reduction to Pt 2+ A first reducing solution is formed; the first reducing solution is introduced into the adsorption device of the chelating resin, whereby the chelating resin can selectively adsorb Pt. 2+ This process forms a platinum-supported resin; the platinum-supported resin is then desorbed to obtain a Pt-rich product. 2+ The second reducing solution is adjusted to a pH between 4 and 6, and then a reducing agent is added to reduce Pt. 2+ The above method precipitates elemental platinum by selecting a weak reducing agent and under mild reducing conditions. 4+ Directional reduction to Pt 2+ Further Pt 2+ This method reduces the substance to elemental Pt, avoiding the problem of increased impurities in the solution caused by the reducing agent itself transforming into metal ions, as is common in active metal displacement methods.

The application provides a lock opener, a passive electronic lock assembly, an electronic lock and an energy transmitter. The lock opener comprises a transmission member and a connecting coil. The transmission member has a first end and a second end. The first end is used for connecting with a mobile terminal. The connecting coil is connected to the second end. The connecting coil is used for nested cooperation with a receiving coil of the electronic lock. The lock opener can transmit the energy of the mobile terminal to a driving module of the electronic lock, so that the driving module can drive the electronic lock to switch between a locked state and an unlocked state. The lock opener of the application directly transmits the energy of the mobile terminal to the electronic lock through the nested cooperation of the connecting coil and the receiving coil, directly controls the switch of the electronic lock, and further does not need to set energy storage capacitors, MCUs and other components in the electronic lock, which is beneficial to simplifying the structure of the passive electronic lock assembly, reducing the volume of the passive electronic lock assembly and reducing the cost.