Rear-locking FPC/FFC connectors for greater stability in circuit interconnections

Rear-locking FPC/FFC connectors are connectors used for circuit interconnections, mainly for connecting flexible printed circuits (FPC) to flat cables (FFC). Compared with conventional connectors, the rear-locking FPC/FFC connector offers greater stability and reliability. This article will introduce the principle, structure and application of the back-locking FPC/FFC connector in detail.

Principle of Rear Locking FPC/FFC Connectors

The principle of the rear-locking FPC/FFC connector is based on the combination of an elastic contact piece and a rear-locking mechanism. The elastic contact piece is the key component of the connector, which realizes the conduction of the circuit by making contact with the conductive spacer on the FPC/FFC. The back-locking mechanism is used to secure the FPC/FFC and ensure the stability of the connection.

The elastic contact pads are usually made of spring material with high elasticity and conductivity. When the FPC/FFC is inserted into the connector, the elastic contact plate is pressurized, causing it to bend and come into close contact with the conductive spacer, thus realizing the connection of the circuit. The back-locking mechanism prevents the FPC/FFC from loosening or falling off under vibration or other external forces by locking it to the connector.

Structure of back-locking FPC/FFC connectors

Rear-locking FPC/FFC connector is usually composed of connector shell, elastic contact piece, rear-locking mechanism and guide structure and other parts.

• Connector shell: The connector shell is the outer shell of the connector, used to protect the internal circuitry and connecting parts. Usually made of engineering plastics or metal materials, with good mechanical strength and durability.

• Elastic contact piece: The elastic contact piece is the key component of the connector, which is used to realize the contact with the conductive spacer on the FPC/FFC. Elastic contact sheets are usually made of spring material, with high elasticity and conductivity. They are usually arranged in a certain spacing in the connector shell, corresponding to the conductive pads of the FPC / FFC.

• Rear Locking Mechanism: The rear locking mechanism is used to secure the FPC/FFC and ensure the stability of the connection. The rear locking mechanism is usually composed of a locking plate and a locking seat. When the FPC/FFC is inserted into the connector, the locking seat will press the locking plate on the FPC/FFC to lock it in the connector shell. This prevents the FPC/FFC from loosening or falling off under vibration or other external forces.

• Guiding structure: The guiding structure is used to guide the insertion of the FPC/FFC to ensure the accuracy and stability of the insertion. Usually use guide slot, guide column or guide edge and other forms, so that FPC / FFC can be accurately inserted into the connector.

Applications of Rear-Locking FPC/FFC Connectors

Rear-locking FPC/FFC connectors are widely used in electronic equipment, especially in areas with high circuit connection requirements. The following are some common application scenarios:

• Cell phones and tablet PCs: Post-locking FPC/FFC connectors are commonly used in mobile devices such as cell phones and tablet PCs for connecting a variety of flexible printed circuits, such as touchscreens, camera modules and displays.

• Automotive electronics: rear-locking FPC/FFC connectors are also widely used in the field of automotive electronics, used to connect flexible printed circuits in car displays, navigation systems, audio systems and other equipment.

• Industrial control: Rear-locking FPC/FFC connectors are widely used in industrial control equipment for flexible printed circuits connecting devices such as control panels, sensors and actuators.

• Medical equipment: Post-locking FPC/FFC connectors are also used in medical equipment for connecting flexible printed circuits for devices such as medical instruments, monitoring equipment and surgical instruments.

• Other fields: Post-locking FPC/FFC connectors are also used in aerospace, military equipment, communication equipment and consumer electronics.

Summary:

The rear-locking FPC/FFC connector realizes the stable connection of the circuit by the combination of the elastic contact piece and the rear-locking mechanism. It has high stability and reliability and is widely used in various electronic devices. With the continuous development of electronic equipment and the improvement of circuit connection requirements, rear-locking FPC/FFC connectors will continue to play an important role in the future.

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