A DC motor is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current flow in part of the motor.
DC motors were the first form of motor widely used, as they could be powered from existing direct-current lighting power distribution systems. A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field windings. Small DC motors are used in tools, toys, and appliances. The universal motor can operate on direct current but is a lightweight brushed motor used for portable power tools and appliances. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills. The advent of power electronics has made replacement of DC motors with AC motors possible in many applications.
DC Gear Motor,DC Shunt Motor,Shunt Motor,Small DC Motor Shenzhen Maintex Intelligent Control Co., Ltd. , https://www.maintexmotor.com
The Changzhi High-Tech LED project was launched in 2010 with a total investment of 3.7 billion yuan. It has built 9 projects including sapphire substrate, crystal, epitaxy and chip, packaging and lighting, display screen and TV whiteboard. At present, there are 420 packaging production lines, with an annual output of 22 billion LED light-emitting diodes, the top five domestic production capacity; monthly production of 90,000 square meters of various types of display, in the forefront of the country. Gaoke's LED industry chain integrity, scientific research strength, equipment level, sales team and other advantages, has a rapid development, bigger and stronger basis.
This year, the company established the development idea of ​​“high output value of enterprises, high income of employees, and low profits of enterprisesâ€. With the rapid development opportunities of LED industry, it invested more than 300 million yuan to expand the packaging and display, and built accessory workshops. The LED packaging production line has added 100 new ones, and the equipment has been fully installed. It is expected to be put into production soon. The new production line equipment will also be commissioned. The monthly production capacity will be expanded to 150,000 square meters, with a full color of 30,000 square meters and a monochrome of 120,000. Square meters; invested 50 million yuan to build parts workshop, is installing 150 sets of injection molding, die-casting and other equipment, providing structural components for display, lighting and TV whiteboard, further improving product cost advantages.
LED is the most promising green lighting technology in the 21st century. The market demand is large, the industry is developing fast, and the industry cake is big. In 2014, the world LED industry grew at an average annual rate of more than 30%, and China reached nearly 40%. Li Jianming said that Gaoke is also developing with the trend, and the two major categories of products such as packaging and display are in short supply. This year's sales will exceed 1 billion yuan. 
Changzhi high-tech LED expansion is the leader
Invested more than 300 million packages start, display and shop fitting project <br> <br> recently seen rapid development momentum in Changzhi Hi-Tech Group: More than 400 LED packaging production line at full capacity, customers hurried LED display shipments, The newly-built packaging workshop is equipped with injection molding and die-casting equipment in the debugging equipment and accessories workshop. Li Jianming, a member of the National Committee of the Chinese People's Political Consultative Conference and high-tech leader, said that the LED industry has a good prospect. We seized the opportunity to expand production. This year, we invested more than 300 million yuan to start the packaging and display. 3 projects in the screen and accessories workshop, strive to become the new highlight of the province's non-coal industry, and become the national leader in the LED industry.