Which devices belong to mobile phone connectors?

The key device in mobile phone is mobile phone connector, which is directly related to the quality and reliability of mobile phone. Most of the after-sales service quality problems of mobile phones are also related to connectors.

mobile phone Connector The types of sub products are slightly different due to products, with an average usage of about 5 ~ 9. The types of sub products are divided into internal FPC connector, board to board connector, external connector, electricity and SIM card Connector And camerasocket, etc.

1. Battery Connector 。

Battery Connector It can be divided into: single chip type, knife switch type and thimble type. The technical trend of battery connector is miniaturization, low contact impedance and high connection reliability.

2. Battery Connector The function of.

mobile phone Connector The number of contacts is generally 3-5. Each contact has different functions, which are introduced below.

(1) The positive connection point of the battery.

The positive connection point of the battery is to connect the positive electrode of the mobile phone battery and the positive electrode of the circuit for power supply. All mobile phones have the positive connection point of the battery, and some mobile phones have the resistance of the positive connection point of two batteries.

(2) Battery negative connection point.

The battery negative connection point connects the mobile phone battery negative and the circuit negative. All mobile phones have battery negative connection points, and some mobile phones have two battery negative connection points.

(3) Thermistor connection point.

Thermistor is the most commonly used in mobile phone battery. The temperature will rise rapidly during charging, so it can be used to judge that the battery is full and stop charging when the temperature is too high.

(4) Identify resistance connection points.

In order to distinguish lithium-ion batteries from nickel metal hydride batteries, or thick batteries from thin batteries, some mobile phones connect identification resistors to identify battery types.

(5) Battery information memory connection point.

Some mobile phone batteries have internal memory chips to store battery parameters, such as manufacturer, serial number, production date, voltage, capacity, etc.

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