HP designed the first pogo pin more than 20 years ago, and registered a
trademark. It is used in the HP-designed printer for the signal connection
between the boards, reducing the trouble of cable connection, making the
connection easier, and making the The internal circuit is cleaner and more
refreshing.
Pogo Pin pogo pins seem to be a simple part, but if there is no one with
good quality control and perfect advanced technology level, it is very prone to
power failure and pin stuck, or the durability (life) is too short. The process
is extremely delicate and complex. From lathe processing, electroplating, and
assembly, each process may bring serious hidden dangers.
In terms of Pogo pin lathe processing, it is recommended to use Japanese
automatic core-moving lathes for processing, so that the precision of the parts
can be guaranteed within +/-0.01mm, but most factories are processed by
tool-feeding machines, and the accuracy cannot be guaranteed at all. Second, the
surface finish of lathe processing, especially the inner surface finish of the
needle tube is very critical. The vast majority of factories do not have surface
roughness testing equipment and do not monitor this important parameter at
all.
In terms of Pogo pin electroplating process, the thickness of the coating
has a huge impact on the cost structure. The gold plating of good quality is
16-20u", but most other brands are 1-2u", and the gap is very large. Secondly,
the quality of gold plating in the hole also has a great influence on the
electrical properties (dynamic impedance) and mechanical properties of the
product.
The process of Pogo pin assembly is equally important. Poor assembly
process can lead to serious problems such as skewed needle, too large gap
between needle height and length, stuck pin, peeling of the tube orifice,
etc.
Pogo pin is a precision connector used in electronic products such as
mobile phones, and is widely used in semiconductor equipment for connection.
There are different appearances according to different applications, but as
a whole, there is a precision spring structure inside the pogo pin. The surface
of the product is generally gold-plated, and the unit price of the product is
generally about 5 to 1 yuan.
The thimble is energized or turned on, most of which are in contact with
the copper wall through the oblique downward direction, and the spring bears a
small amount, so the inner wall of the copper sleeve is required to be smooth.
If the POGOPIN factory makes a non-beveled surface, but the bottom is flat, most
of the current must be conducted through the spring, and the requirements for
the spring will be very high. Of course, it is necessary to ensure that the
power outage occurs when the current suddenly increases. (This is a little bit
of my experience in the actual use process)
Pogo pin is a spring-type probe formed by riveting and pre-pressing the
three basic components of needle, spring and needle tube through precision
instruments. There is a precise spring structure inside. The surface coating of
pogo pin is generally gold-plated, which can better improve its anti-corrosion
function, mechanical properties, electrical properties, etc. Pogo pins are
generally used in precision connections in mobile phones, communications,
automobiles, medical, aerospace and other electronic products, which can improve
the corrosion resistance, stability and durability of these connectors. Since
the pogo pin is a very fine probe, it can be used in precision connectors to
reduce the weight of the connector and the volume of its appearance, which can
make the connector more fine and beautiful.
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