Slip rings are critical components that enable 360° power and signal transmission, and they are widely used in electromechanical products in various industries. In the field of consumer electronics, slip rings are also used in some specialized products such as high-end toys, multi-rotor drones, and stabilizing gimbals. The slip rings used in these products are typically small in size and light in weight. One notable example is the slip ring solution provided by INPUT for consumer electronics applications. The JINPAT LPMS series of ultra-miniature slip rings, typically less than 10 mm in diameter, includes several customized pancake slip ring products.

As a pioneer among international slip ring manufacturers, the JINPAT LPMS ultra-miniature slip ring series now represents one of the smallest slip rings available on the global market. The smallest product in the series has a diameter of only 5.5 mm. If there is a clear market demand for even smaller slip rings, JINPAT can develop ultra-miniature slip rings with a diameter of 4.5 mm. Currently, the standard LPMS ultra-miniature slip rings provide a maximum of 15 signal channels and have a diameter of less than 7.1 mm, with a total wire weight of less than 15 grams.

One of the distinguishing features of JINPAT LPMS ultra-miniature slip rings is their ability to support mixed transmission of both power and signals. However, they are limited to the transmission of relatively simple signals. For more complex signals such as Ethernet or USB, customization is required. Taking advantage of the ultra-small diameter of the LPMS series, JINPAT has developed many slip rings with integrated signals for specialized applications, including USB 2.0, high-definition SDI video, and gigabit Ethernet slip rings. Among these ultra-miniature terminals for customized slip ring applications, the cruise missiles can be considered the most unique. The slip rings are installed inside the cruise missile’s opto-electric turret to support the transmission of power, SDI or other signals.

As a weapon that has gained popularity on the battlefield in recent years, cruise missiles are characterized by their portability and target accuracy. However, they also impose strict limitations on the size and weight of their components. Thus, for ultra-miniature slip rings such as the JINPAT LPMS series, which weigh only a few grams, an optoelectric cruise missile turret is an ideal application terminal. Taking the JINPAT LPMS-15 standard slip ring as an example, it can be configured to connect SDI, Ethernet and other signal channels, meeting the requirements for conventional signal transmission in small opto-electric turrets. Thanks to its optimized design, it can also support the operation of small aircraft or cruise missiles at altitudes above 8,000 meters. These data are not obtained from scratch, but are based on conclusions drawn from a brief description of various ultra-miniature slip ring housings provided by JINPAT to the consumer electronics industry and other sectors over the years.