structure design services, we designed the product waterproof structure can be
said to be completely no problem, but for the reasons of poor waterproof
generally plastic deformation, waterproof surface is not in a line, O-ring
preloading is too loose or too tight, structural stiffness is not enough,
uneven screw distribution or slippery teeth, etc. The malpractice of plastic
deformation is obvious and easy to occur. There are many ways to improve it,
such as improving the rubber mouth, transporting water, strengthening the bone,
increasing the slope of demoulding, etc. For some products, the cause of
deformation may also be caused by the shape limitation leading to the need for
curved surface parting of front and rear shells, or by the large change of the
wall thickness of plastic parts caused by too small internal space.
Some products are
prone to deformation due to the influence of residual stress of plastic beer
plastics, and need to be waterproof. In order to reduce deformation, in
addition to strengthening bone, increasing demoulding inclination and
increasing ejection position, fixture positioning and shaping should be done
when the product beer plastics come out when necessary, and natural cooling in
warm water to reduce residual stress. In some products, transparent mirrors
should also be and after. The shell is waterproof through O-ring. It is
suggested that the LCD and PCB should be wrapped in a metal cover of 0.15, and
the screw should be fixed on the lens, so that the plastic beer plastic
deformation will be smaller.
In the process of
design, orange industrial design has accumulated quite a wealth of waterproof
structure treatment methods. For some products with waterproof requirements, in
the early stage of ID design, we will avoid the bad waterproof caused by the
shape and structure, and avoid the O-ring to make irregular curved surface.
Generally speaking, if the waterproof line is not coherent after the upper and
lower cover, it is not on one surface. Water effect is mostly not good, even to
the shape of ultrasound treatment effect will not be good, should be avoided as
far as possible, so there are certain requirements for designers, they need to
know certain structural knowledge, in the early stage of ID modelling design,
to avoid such modelling.