Disc spring, referred to as disc spring (din2093), is also mistakenly written as butterfly spring. Disc springs was invented and used in the middle of the 19th century. At that time, Belleville, a Frenchman, applied for a design patent for the disc spring. Nowadays, some places still call it Belleville springs.
In the 21st century, disc spring is used in more fields, such as aerospace, defense system, medical equipment, automobile, electric power, construction, machine tool and other industries
The standard of disc spring in the world is the German din2093 standard. Earlier, the disc spring standard used in China was GB / t1972-1992. Now the national standard of disc spring in China is GB / t1972-2005.