circuit wiring

The assembly description is included in the working instruction of cell phone jammer .
A long-term study of electronic products on the impact of environmental pollution experts, a cell phone battery pollution load of waste, equivalent to 100 ordinary batteries. Used as a traditional cell phone, contain potentially harmful substances to the environment at least 20 species. Researchers have made an experiment, an old cell phone batteries, can contaminate 60,000 liters of water. "60,000 liters of water enough to fill three standard swimming pool." Cell phone batteries on the market today, the main points of nickel-cadmium batteries, nickel metal hydride batteries and lithium-ion battery 3 species. "One of nickel-cadmium batteries contain heavy metals as cadmium, harmful to human body. Have long contaminated, there may be emphysema, bone changes, anemia and other symptoms and may even lead to paralysis." The experts just such an account: reset the cell phone, the average life of 5 years (excluding its been sold several times in fact, not many cell phones can be used for 5 years. the authority of environmental protection organizations in Hong Kong a statistical average life of a cell phone for 600 days), each cell phone only one battery. Hefei urban resident population of 300 million or more (according to the Hefei Economic and Social Statistics Report 2009), calculated according to three million.As the recycling of used batteries can not find the departments and enterprises, recycling of used batteries often encounter "homeless" situation. Such as Jinan Ginza shopping on duty since 1998, recycling of used batteries, so far has recovered hundreds of thousands of festival, in addition to a business as part of the treatment trial, the rest still on the mall. Beijing was established in 1998 the usefulness of garbage recycling center, over the years has collected 400 tons of used batteries, still has most of the stack containers in the recycling center [4]. Recycling of used batteries only to move a home together in one place, but the pollution itself, this method is not desirable. cell phone jammer still can be used in such serious locations as the party and government institutions, theaters and so on which need tranquility.cell phone jammer components mainly include: main machinery, antenna, power supply adapter. Recycling of waste batteries has been difficult to handle, it is because our country has not yet established a comprehensive network and system for efficient recycling, waste battery processing industry has not established a set of industry, large-scale and specialized mode of operation. Although various types of waste processing technology has a lot of batteries, but some of the more mature, but a variety of economic factors constraining the development of battery disposal industry. Low recovery rate for disposal of batteries, long cycle efficiency is difficult to have too many economic benefits, even profitable, but also lose money, it is difficult to attract investors, so it is difficult to form an industrial scale, the scale can not be without realization of benefits.

 When cell phone jammer switches on and starts working.
The shell mold cavity and core materials to use wear high hardness mirror mold steel. Mold also good material intensity and use standard mold base, another like the top tube mandrel also use the standard, in order to improve the quality and speed of the mold manufacturing. The choice of mold material, specifically to see the Table of the chapter of the book material. Materials, heat treatment of the mold material. Means of heat treatment of the mold material heat treatment of plastic mold materials commonly used in tempering, carburizing, quenching. The heat treatment is conducive to metal machining, to improve the machining accuracy, surface hardness, wear resistance and stability. For example, we can often see a phenomenon: the new mold parts to do good, do 1-2 million. It is convenient to charge cell phone jammer .Faults of cell phone jammer can be solved as soon as possible
Open before and after the shell will damage the lack of any assembly of components can not be missing any parts assembly prototype hooks, and shell assembly, the parts must be complete, experience tells us: that the parts often less fitted, after that part is a problem. And structure of the assembly not only focus on the assembly structure, the same concern with the structure of the PCBA and connector, and a large, high components. A good approach is in strict accordance with the BOM and assembly diagram to do, so easy to find problems. Measurement and assembly of prototype size you want real-time to make a record, otherwise easily forgotten. Specific assembly and test Table 2-5 phone prototype structure assembly Checklist prototype assembly inspection is not only a product quality inspection.
Missed drop is the actual accident situation occurs most frequently use their mobile phones, drop test reliability of the test structure design stiffness and strength test. In the drop test height of 1m, the force is about 10 times its weight chassis, so a good estimate of the structural parts and packaging design stiffness and strength. The drop is more common to test the battery off, so the shell of the card after the battery into the structure of the extrusion force is to be strictly calculated. The structural design of these trials need to understand the methods and principles to guide the design and improvement of the design. The content of these trials the implementation of the responsibility of the professional engineers of the quality management department. The workshop has issued the newest model of cell phone jammer .It is along the thread on the host of cell phone jammer