Comparison between mercury slip rings, carbon brush slip rings and new electric brush slip rings
Mercury slip rings, carbon brush slip rings and new brush slip rings are all electrical rotary connectors, which are industrial components used to transmit current, but they are very different from each other.Next, we will be led by Ingiant Technology to analyze the differences between mercury slip rings, carbon brush collector rings and new brush slip rings?
First of all, the media transmitted by mercury slip rings, carbon brush collector rings and new brush slip rings are different. Mercury slip rings mainly use liquid mercury as the conductive medium. The carbon brush collector ring transmits current through frictional contact between the carbon brush slider and the collector ring. The new brush slip ring generally transmits current, signal, gas or liquid through the frictional contact of precious metal wire fiber brush/silver graphite with the conductive ring.
Secondly, mercury slip rings, carbon brush collector rings and new brush slip rings have their own advantages. The mercury slip ring has small and stable contact resistance, high transmission accuracy, good stability, no noise, no noise, high speed, high loop and high current when transmitting signals; it is much smaller than ordinary mechanical structure slip rings, and its structure Compact and small in size; because the rotating part has no complex physical and mechanical structure, there is no wear and tear of mechanical parts, which makes the product more reliable and maintenance-free, and has a longer life. The carbon brush collector ring has good electrical conductivity, thermal conductivity and lubrication performance, and has a certain mechanical strength and the instinct of reversing sparks, and has a long service life. The new brush slip ring has more types and complete specifications. Small current, high current, number of channels, speed, etc. can be customized, and the design is more flexible. Customized according to customer requirements. The new brush slip ring can not only transmit current and signal, but also transmit liquid and gas to meet the application needs of different automation markets.
Again, mercury slip rings, carbon brush collector rings and new brush slip rings have their own shortcomings. Disadvantages of mercury slip rings: due to the large thermal expansion coefficient of mercury, mercury slip rings cannot be used at high temperatures, and the general working temperature should not exceed 60 degrees Celsius; secondly, the special structure of mercury slip rings makes them expensive; in addition, for the working environment requirements High, vibration environment must be shockproof, otherwise it will seriously affect the service life; finally, the biggest problem of mercury slip ring is that mercury is toxic. Mercury evaporates continuously after being heated, which will cause great harm to the human body, and mercury has a greater erosive effect. Carbon brush collector rings are generally bulky and heavy, and are prone to heat and sparks during operation, wear collector rings, burn out carbon brush holders and collector rings, have poor sealing and poor protection performance, and require regular maintenance. The new brush slip ring has a limited service life and many types, most of which need to be customized. With the continuous development and improvement of high-tech and automation requirements, the current and signal transmission capacity and speed requirements of the conductive slip ring are also getting higher and higher. Opportunities and challenges for brushing slip rings follow.
Finally, mercury slip rings, carbon brush collector rings and new brush slip rings are used in different fields. Because the volume of mercury slip ring is much smaller than that of ordinary mechanical structure, the structure is compact and the size is small, which makes mercury slip ring play an important role in the field of special micro and precision instruments, even non-mercury slip ring. The carbon brush collector ring has good electrical conductivity, thermal conductivity and lubricating properties, and has a certain mechanical strength and the instinct of commutation sparks. Almost all motors use carbon brushes, which are an important component of the motor. Carbon brush collector rings are widely used in various AC/DC generators, synchronous motors, battery DC motors, crane motor collector rings, various types of welding machines, etc. The new brush slip ring has a very wide range of applications and is widely used in industrial automation, aerospace, medical equipment, military industry, wind power generation, robots, security equipment, etc. With the improvement of automation, the new brush slip ring will be applied. in more fields.
