13results about How to "Avoid Galvanic Corrosion" patented technology

The utility model discloses a corrosion-resistant metal lining socket type multilayer pipe, which belongs to the technical field of pipes and comprises an inner pipe, a middle layer and an outer pipe which are sequentially sleeved from inside to outside, steps and / or grooves are arranged on the inner wall of a socket end, and the inner pipe, the middle layer and the outer pipe are adhered to form the pipe or compressed to form the pipe. The outer pipe comprises a socket end, a pipe body and a spigot end which are connected in sequence, the outer pipe is made of metal, the inner pipe is made of a corrosion-resistant material, each end of the pipe is provided with a sealing layer and a lining ring made of a corrosion-resistant metal material, and the length of each lining ring extending into the pipe is not less than 20mm. The anti-corrosion pipeline is good in anti-corrosion effect, and the water conveying efficiency of the pipeline is improved. The corrosion-resistant metal lining ring prevents each layer of material from being stripped; and the strength and the deformation resistance of the pipe are improved.

The utility model relates to the field of parts of connecting device, concretely relates to a kind of aluminium row connecting structure and electric connection assembly.The aluminium row connecting structure is used to solve the gap space between the copper ring and aluminium row of the aluminium row connecting structure of existing aluminium row connecting structure if entering water vapor or impurity is easy to make both electrochemical corrosion, affect the reliability of electric connection.The aluminium row connecting structure includes aluminium row, the side of the connecting end of aluminium row is attached to copper ring towards connecting piece, copper ring is provided with protective plating layer to avoid electrochemical reaction with aluminium row.So, it can effectively prevent water vapor or impurity from entering between the contact surface of copper ring and aluminium row and then electrochemical corrosion occurs, ensure the reliability of electric connection, also ensure the stability of entire circuit.

The utility model discloses a motor, which comprises a motor shaft assembly, a rotary transformer assembly, a conducting ring and an end cover, and is characterized in that the rotary transformer assembly is positioned at one axial end of the motor shaft assembly and is connected with the motor shaft assembly through a fastener; the conductive ring is arranged on the periphery of the fastener in a sleeving mode and located on the side, away from the motor shaft assembly, of the rotary transformer assembly. The end cover is arranged on the side, away from the rotary transformer assembly, of the conducting ring, and the end cover abuts against the conducting ring. According to the motor provided by the utility model, the conductive ring is sleeved on one side of the fastener far away from the rotary transformer assembly, so that the conductive ring abuts against the surface of the end cover, and shaft current generated after the motor works for a long time can be grounded through a path of the motor shaft assembly-the fastener-the conductive ring-the end cover, so that the bearing is prevented from being electrically corroded, and the service life of the motor is prolonged. The space on the fastener is effectively utilized, the axial size of the motor can be reduced, the structure of the motor is more compact, and miniaturization design is facilitated.

Provided is a joint of a copper terminal and an aluminium conductor. A copper terminal connecting member of the joint is connected to a conductive core of the aluminium conductor by means of a transition welding layer, and the joint can also be provided with a reinforcing welding layer. Further provided is a method for preparing the joint using plasma arc welding. According to the invention, the connection portion of the copper terminal with the aluminium conductor is filled with solder in a plasma arc welding manner, such that copper and aluminium are connected by means of the solder. Damage to an aluminium oxide layer during welding increases the conductivity and can also isolate the copper terminal and the aluminium conductor, thus preventing an electrochemical reaction between the copper and the aluminium, prolonging the service life of the joint of the copper terminal and the aluminium conductor, and ensuring the mechanical and electrical performances of the connection structure.

The utility model discloses a liquid cooling cabinet capable of insulation protection, comprising a cabinet main body, an insulation spacer, a sealing surface A, a sealing surface B and a sealing assembly, the sealing assembly is installed on any sealing surface between the sealing surface A and the sealing surface B, the sealing assembly comprises a sealing O-shaped ring A and a sealing O-shaped ring B. When the sealing O-shaped ring A is installed on the sealing surface A, the sealing O-shaped ring B is installed on the sealing surface A, and the sealing O-shaped ring B is installed on the sealing surface B; and when the sealing O-shaped ring B is mounted on the sealing surface A, the insulating spacer, the sealing O-shaped ring A and the case main body form sealed connection, and when the sealing O-shaped ring B is mounted on the sealing surface B, the insulating spacer, the sealing O-shaped ring B and the connector form sealed connection. Through the implementation of the utility model, the liquid cooling cabinet capable of insulation protection is provided, so that the connector is isolated from the cabinet main body metal, the electrochemical corrosion is prevented, and the service life of the product is ensured; the connector and the case main body are sealed by using the sealing O-shaped ring, so that good air tightness of the product is ensured, and leakage is prevented; the problems of electrochemical corrosion and short service life between the case main body and the external connector are solved.

The utility model is suitable for the technical field of battery devices, and provides a protection structure and battery equipment. The protection structure comprises a first protection outer layer, an energy absorption layer, an isolation layer, a buffer layer and a second protection outer layer which are sequentially arranged in a stacked mode in the first preset direction, the energy absorption layer and the buffer layer are both made of metal, and the isolation layer is used for isolating the energy absorption layer and the buffer layer. According to the protection structure, under the isolation effect of the isolation layer, electrochemical corrosion caused by direct contact of the energy absorption layer and the buffer layer which are both metal pieces is avoided, so that rust is prevented from being generated on the surface of the energy absorption layer, and the tensile strength of the energy absorption layer and the connection strength of the energy absorption layer and the buffer layer are guaranteed; and therefore, the overall mechanical strength of the whole protection structure is ensured.

The utility model discloses a rechargeable salt electrolysis device and aims to overcome the defects that the salt electrolysis device needs an external power supply to supply power, the external power supply not only limits the moving range of a chlorinator in a water tank, but also has potential safety hazards of electric leakage due to high voltage of an external mains supply. The salt electrolysis device comprises a salt electrolysis body, an energy storage unit and a charging unit are installed in the salt electrolysis body, the charging unit charges the energy storage unit, an electrolysis unit is installed on the salt electrolysis body, and the energy storage unit supplies power to the electrolysis unit. According to the salt electrolysis device, a rechargeable structure is adopted, potential safety hazards caused by use of an external power supply are avoided, the salt electrolysis device is flexible and convenient to use when being placed in a water pool, and the moving range in the water pool is not limited.

This application provides a cover plate assembly, a battery cell, and a battery pack, relating to the field of battery technology. The cover plate assembly includes a terminal post, a first metal component, a second metal component, a first sealing component, a current collector, and a second sealing component. The first metal component is ring-mounted around the terminal post. The second metal component is ring-mounted around the terminal post, along the axial direction of the terminal post, located on one side of the first metal component and connected to it. The first sealing component is ring-mounted between the terminal post and the second metal component. The current collector is connected to one end of the terminal post. The second sealing component is ring-mounted around the terminal post, with its two ends connected to the first metal component and the current collector, respectively. Through the above solution, this application can effectively prevent electrolyte from flowing from the mating area between the first metal component and the terminal post into the space between the first metal component and the second metal component. This avoids galvanic corrosion between the first and second metal components, helps ensure the structural strength of the first and second metal components, and thus improves the structural strength of the cover plate assembly.

The utility model discloses corrosion monitoring equipment, including corrosion monitoring device and first connecting piece, corrosion monitoring equipment includes insulating shell, at least one for monitoring corrosion's sample to be measured, first fixed structure and the second fixed structure of setting corresponding each sample to be measured, the shell is the hollow structure of two end portions closed, and the upper side is equipped with a plurality of intercommunication holes, the sample to be measured is located the inside of shell and is fixed through the second fixed structure, and the intercommunication hole is connected with the outside in the inside of shell, the lateral surface of shell is equipped with the accommodation groove, and the first connecting piece part is located in the accommodation groove and is fixed through the first fixed structure. The porous insulating shell of the corrosion monitoring device can form flowing bin, can guarantee sample to be measured and outside fluid full contact, can prevent sample to be measured and shell contact and take place galvanic corrosion simultaneously, and corrosion monitoring effect is reliable. And, the corrosion monitoring equipment is integral type detachable structure, can be used repeatedly, saves manual and material cost.

This invention provides a vehicle body structure and a vehicle, the vehicle body structure including magnesium alloy structural components, aluminum structural components, and steel structural components; the steel structural components and magnesium alloy structural components are respectively connected to opposite sides of the aluminum structural component; the magnesium alloy structural component has at least one connecting area for connecting the aluminum structural component, the connecting area having multiple clearance gaps, and the aluminum structural component has multiple first connecting points for connecting the steel structural component, each first connecting point being opposite to a clearance gap. This invention improves the corrosion resistance of the vehicle body structure, ensures the safety of the vehicle body structure, and achieves a lightweighting and weight reduction effect.

This invention relates to the field of converter stations, specifically to a UHV converter station connection fitting and a UHV converter station. The UHV converter station connection fitting includes a copper clamp for fixed connection to the terminals of a wall bushing and at least two sets of terminal block assemblies for fixed connection to split conductors. Each terminal block assembly includes an aluminum terminal block and an aluminum pressure block fixed to the aluminum terminal block. The aluminum terminal block is fixedly connected to the copper clamp. The aluminum terminal block has a terminal block contact surface, and the copper clamp has a clamp contact surface that makes conductive contact with the corresponding terminal block contact surface. Both the clamp contact surface and the terminal block contact surface are plated with a metal plating to prevent electrochemical corrosion between the two contact surfaces. Designing the clamp for fixed connection to the terminals as a copper clamp increases the current carrying capacity and effectively reduces the temperature rise of the wall bushing and connection fitting. The metal plating on the clamp contact surface and the terminal block contact surface prevents electrochemical corrosion between the two contact surfaces.

This application belongs to the field of display driving technology, specifically relating to a gate driving circuit, a fabrication method, and a display panel. The gate driving circuit includes N cascaded GOA circuit units; a reset signal line disposed on any side near the GOA circuit unit, electrically connected to the gate of a reset transistor, and located on the same metal layer as the gate of the reset transistor; a cathode signal line disposed on the same side as the reset signal line and away from the GOA circuit unit; the cathode signal line electrically connected to the drain or source of the reset transistor, and located on the same metal layer as the source or drain of the reset transistor; and multiple clock signal lines disposed between the reset signal line and the cathode signal line, electrically connected to the clock signal line of the GOA circuit unit. This application eliminates the presence of ITO vias on the low-level signal lines, avoiding electrochemical corrosion of the ITO layer in high-temperature and high-humidity environments, thus improving the stability of the gate driving circuit.

The utility model provides a kind of line aluminium plate curtain wall keel adapter system, it is related to building curtain wall technical field, comprising: combined connecting piece, aluminium alloy upright, line aluminium plate curtain wall panel, fixed assembly and glass curtain wall;The combined connecting piece is the custom steel connecting piece with long round hole and hot-dip galvanizing angle steel full welding formation made by factory opening mould, as the horizontal keel of line aluminium plate curtain wall panel;The combined connecting piece is connected with the aluminium alloy upright by M6 stainless steel bolt group, and the fixed assembly includes corner aluminium and aluminium alloy pressing plate;The utility model reduces site welding, processing and other procedures by prefabricated combined connecting piece, reduces the dependence on the skill of site construction personnel, shortens construction period;Modular fixed mode makes panel installation, dismounting operation simple, is convenient for later maintenance or replacement, adjustment function and anticorrosion, sealing design reduces rework cost due to installation error, component damage, reduces long-term maintenance cost, improves the economy of system.