Appearance requirements of tablet computer shell: each side should have a draft angle of 2 ~ 3 as far as possible, and the larger the content, the easier it is to demould. Use an arc transition between surfaces. The drawing direction should not be tangent to the edge of the product, and it is generally greater than 1 ~ 2, and the larger it is, the easier it is to demould. The appearance should be as thick as possible, and the normal discharge current should be greater than 4A. (according to customer requirements, try not to print. The appearance of the insert should be as smooth as possible, but with fire lines, such as nameplates. Each side should be as curved as possible. Appearance shall not be uneven, deformed, unclear fonts and other defects. The cavity number, material number and year must be marked.
The shell structure and size of the tablet computer also have certain requirements, such as: generally, if the wall thickness allows, it should not be too thin, generally about 2.2 mm. The external size is as small as possible, but it is better to put the transformer and PC board. The front and rear clips are generally 1.5mm thick, and there must be inclined reinforcing ribs. It is best to adopt a "U" shape. The internal dimensions of the two clips are greater than the product thickness of1.0-1.5 mm. Generally, the top and bottom bars are 1.0mm thick, and the top is inclined thin. See the attached figure for the distance between the upper and lower clamping strips. The front and rear clamping strips must be made into movable parts (referring to ultrasonic welding), and the upper and lower clamping strips should be as high as possible to prevent thermal deformation. The normal height and width of the acoustic wave line is 0.4 ~ 0.5 mm, which should be placed in the middle of the fusion surface. If there is a wall, it is necessary to disconnect the ultrasonic line at R, and the internal four corners must have an inverted R angle, which is generally 1.0mm, so as not to affect the transformer assembly and increase the strength of PCB. Under normal circumstances, the left and right clamps of the discharge transformer are 1.0mm wide, with an R angle at the top and a slight inclination. The normal line hole size is preferably 0.2mm larger than the SR size. Under normal circumstances, the upper cover is concave and the lower cover is convex. Ultrasonic lines are made on the upper cover, and upper and lower cover fixing strips are placed on the upper cover, with a thickness of 1.0 mm, and the normal fit size of the upper and lower covers is about 0. 1mm, and the R angle must be consistent. The product plug structure is designed according to the product standard plug. The upper and lower retaining walls should be made on all sides, with the normal thickness of 1 mm, and the local gluing position should not be too thick. Try to be an artist.
The above introduction is a detailed description of the shell design of tablet computer, which is provided by Shenzhen GuiChengxin Technology Co., Ltd. and is a professional manufacturer of shell design of tablet computer. This company focuses on MD design and production of metal structures, unconventional technology of plastic parts, perfect combination of plastic parts and metal parts, simplified design of complex structures, ultra-thin, high-end and sophisticated mobile phones and digital housings. And has 16 years of experience focusing on high sharpness, high speed, high quality and low cost. Whether the structural design is easy to assemble, whether the rationality will demand too much cost, and it is impossible to achieve mass production and cooperative attitude.