Analysis of Material Selection and Structural Design of Night Light Shells

The night light shell is a common household lighting accessory, usually made of plastic materials, featuring light weight, durability, and easy processing. Its design focuses on aesthetics and practicality, being able to transmit light softly while protecting the internal circuit components. Common materials include ABS, PC, PP, etc., which have good light transmittance and mechanical strength.

The structure of the night light shell usually consists of an upper and lower cover or front and rear shells, which are precisely injection - molded to ensure dimensional accuracy and assembly fit. The surface may have textures or patterns to enhance the light diffusion effect and create a warm night - time lighting atmosphere.

The plastic connection process of ultrasonic welding is particularly suitable for the assembly of night light shells. Its performance is mainly reflected in the following aspects:

1. High - efficiency and rapid: The welding process usually takes 0.5 - 3 seconds to complete, which is suitable for mass production and significantly improves the assembly efficiency.

2. Firm and sealed: The welded joint has high strength, effectively preventing the lamp shell from cracking or water seepage and ensuring the long - term stability of the product.

3. Glue - free and environmentally friendly: No glue or solvents are required, avoiding chemical pollution and meeting environmental requirements.

4. Precise and beautiful: The appearance is flat after welding, with no obvious flash or deformation, maintaining the overall aesthetics of the lamp shell.

5. Strong compatibility: It is applicable to various plastic materials such as ABS and PC, meeting different design requirements.

Ultrasonic welding technology provides a highly reliable solution for the production of night light shells, taking into account both efficiency and quality, and has become a preferred process in modern manufacturing.