(1) Product structure

The structure of a product refers to the arrangement, organization and interrelationship of the various components of the product. The structure of the product can be a mechanical structure or a circuit structure. Mechanical structure refers to the relative positional relationship, connection relationship, and necessary mechanical matching relationship of the components that make up the product, and the line structure refers to the determined connection relationship between the components that make up the product.

(2) Appearance design patent

Appearance design refers to a new design that is aesthetically pleasing and suitable for industrial applications based on the shape, pattern, or combination of the product, as well as the combination of color, shape, and pattern.

(3) The difference between invention and use of new models

An invention refers to a new technical solution for a product, method or improvement; a utility model refers to a new technical solution for the shape, structure, or combination of a product that is suitable for practical use.