Mobile phone shell accessories placement classification and advantages

In the third quarter of 2022, due to the continued downturn in the global economy, consumers’ demand for replacement phones will be suppressed, and global smartphone shipments will decline year-on-year for three consecutive quarters, with a decline of 9%, which is the same as in the second quarter. Samsung maintained its top spot in global smartphone shipments with a 22% market share. Apple grew 3% year-on-year in a relatively sluggish market due to the release of the new iPhone, ranking second with an 18% share. Xiaomi, OPPO (including OnePlus) and vivo ranked third to fifth with shares of 14%, 10% and 9%, respectively. As we all know, during the assembly stage of smartphone production in factories, many accessories in the mobile phone will be fitted with accessories of different specifications and performances for dustproof, waterproof, aesthetics or airtightness. There are many types but different functions such as: double-sided coating tape, foam, heat dissipation silicone sheet, insulating PI, label…

Definition of mobile phone accessories
As the name suggests, mobile phone accessories refer to parts and accessories (including assembly) that are used in mobile phone assembly, except for plastic casings, motherboards, and electronic components

Advantages of mobile phone accessories
① Fixing: Used for fixing mobile phone electronic components, fixing mobile phone modules, fixing mobile phone shell decoration, etc.
② Dustproof: It is mostly used for dustproofing of receivers, microphones and other places to prevent dust from entering and affecting the quality of calls.
③ Shockproof: It is used for the cushioning of the electronic components inside the mobile phone and the plastic shell parts, which can better relieve the bonding between the mobile phone and the ① Fixing: Used for fixing mobile phone electronic components, fixing mobile phone modules, fixing mobile phone shell decoration, etc.
② Dustproof: It is mostly used for dustproofing of receivers, microphones and other places to prevent dust from entering and affecting the quality of calls.
③ Shockproof: It is used for the cushioning of the electronic components inside the mobile phone and the plastic shell parts, which can better relieve the bonding between the mobile phone and the accessories.
④ Protection: Used for packaging and shipping, transportation protection, better to bring unnecessary loss to mobile phones.accessories.
④ Protection: Used for packaging and shipping, transportation protection, better to bring unnecessary loss to mobile phones.

1. Double-sided adhesive tape (bonding of products)
Double-sided adhesive tape is an important auxiliary structural functional material commonly used in mobile phones, and its main function is to link various structural parts. Such as window fixing, fixing of signs and decorative parts, window protection film, fixing of dustproof mat/buffer pad, fixing of dustproof net, fixing of CAMERA module, fixing of FPCB, fixing of built-in antenna module, fixing of LCD module fixed etc.

2. Foam tape (dustproof/shockproof)
As a mobile phone accessory, the function of foam tape in the mobile phone is to dampen and decompress the places where the electronic components are in contact with the casing. Prevent crushing electronic components. Such as flash gasket, FPC pressing, connector pressing, side key, component support, socket sealing, motor shock absorption, light shading, built-in antenna liner, etc.

3. Foam tape (for cushioning)
Because the foam tape has super impact resistance and shock resistance, and has high vibration-absorbing performance, foam tape with PE as the base material is often used as a mobile phone accessory: shock absorption and decompression where the electronic components and the case are in contact. Prevents crushing of electronic components and acts as a shock pad. It is generally used on the camera, speaker, motor, connector and other parts of the mobile phone, and is used for LCD screen shading.

4. Dustproof net (nylon net/non-woven fabric/grid cloth)
In order to realize the function of calling and playing, some holes are usually set in the position of the speaker of the mobile phone, mainly for the sound from the speaker to be sent out to the outside world through these holes. affect phone performance. Commonly used materials for mobile phone dust-proof nets include nylon net/non-woven fabric/grid cloth.

5. Conductive cloth/conductive foam (ESD)
The function of conductive cloth and conductive foam is the same, mainly to connect the hardware decoration parts with the main board to prevent static electricity from burning the main board, but the conductive foam is directly connected to the hardware decoration parts and the host, and is used as a reinforcement in the mobile phone shell. Conductive, special foam is now widely used in the plastic bottom case of mobile phones. If encounter structural limitations and cannot use conductive foam, you should use conductive cloth.

With the development of domestic and foreign trade markets and the advancement of technology, the requirements for the bonding of accessories, the accuracy of accessories, and the speed of accessories placement in the entire 3C electronics industry have been greatly improved. Mobile phone accessories are mainly assembled by lamination. High-precision manual lamination production will greatly increase the labor cost of the factory and cannot guarantee the lamination accuracy. Due to its efficient and precise placement process, mobile phone accessories automation equipment can quickly solve problems and improve production efficiency and yield.