Commonly used battery connectors have two forms of thimble type and
shrapnel type connectors. A large number of battery connectors used in mobile
phones are thimble type. Compared with shrapnel type battery connectors, it has
the following advantages.
When the thimble type connector is compared with the same size shrapnel
type connector, the compression amount is large and the contact is stable. The
thimble type battery connector has a more effective working compression amount
than the shrapnel type, ensuring the stability of the contact.
Compared with the thimble type and shrapnel type with the same compression
amount, the thimble type connector occupies less PCB board space. When the
working position is 4mm and the compression is 1mm, the thimble connector takes
up less space on the PCB board. The body can be thin and miniaturized.
When compressed, the contact point position of the thimble connector
remains unchanged, which can maintain a stable connection point and obtain
stable electrical performance. The thimble type battery connector has 20,000
times and the shrapnel type 5,000 times. The thimble type battery connector is
more durable than the shrapnel type. The shape of the plastic colloid and the
combination of the thimble can be set freely, so the design freedom is more
prominent.
Through the above comparison and analysis, the thimble type connector has
many advantages over the shrapnel type: it can make full use of the PCB board
space; the thimble type connector can ensure a high initial contact pressure,
and it is stable when compared with the previous shrapnel connector Contact
pressure; thimble type connector has a higher working life than shrapnel type
connector; high degree of design freedom. In the design of new models in the
future, it is recommended that all battery connectors adopt thimble-type battery
connectors.
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