Design Highlights and Application Scope of High Current Slip Rings

High current slip rings refer to those that transmit currents exceeding 100A, widely used in equipment requiring high current transmission. According to physical formulas, power is proportional to the square of the current, so high current transmission can easily lead to increased device temperatures. JINPAT has developed high current slip rings that can handle up to 4000A per channel, posing challenges for design and manufacturing.

When designing high current slip rings, it is crucial to address how to stably transmit high currents and effectively dissipate heat. JINPAT employs a carbon brush-based friction structure to ensure stable current transmission. Additionally, the elevated structure design and integrated cooling system enhance heat dissipation. Using high-temperature resistant materials is also vital for JINPAT's slip rings to withstand high operational temperatures. Since different devices have varying carbon brush specifications, JINPAT's high current slip rings are often customized to provide tailored solutions based on customer needs and application scenarios. This flexibility allows the slip rings to operate effectively in diverse environments.

High current slip rings have stringent voltage variation requirements, as excessive current can lead to electrical arcing, affecting their lifespan. Therefore, JINPAT is meticulous in material selection, employing special processes to prevent oxidation and corrosion, and using precious metal materials for brush contacts to ensure stability and longevity. JINPAT has also established a comprehensive product testing system, including lifespan, waterproof, and torque tests, to ensure the accuracy and validity of product data.

The application range of high current slip rings is extensive, especially in marine engineering, such as offshore cable winches, ship cranes, and offshore oil drilling equipment that require 360° rotation and the transmission of electricity and fluids. For example, the JINPAT LPA000-09800-01PE-3020-04L is designed specifically for marine crane vessels, featuring precious metal contacts and a working temperature range of -20°C to +50°C, suitable for high-humidity and high-salinity marine environments. Beyond marine applications, high current slip rings are also used in wind energy and industrial facilities. For instance, the JINPAT LPA000-0480-01PE-0310-2005EX explosion-proof slip ring is commonly used in fracturing vehicles and cranes in fossil energy extraction, chemical plants, and flour coal processing plants. JINPAT can offer different structures and materials tailored to user-specific operating environments to meet the needs of flammable and explosive media.