Wind Turbine Blade Glue Joint with Spacer Elements

The patent introduces an intermediary substance (adhesive) and an intermediary structure (adhesive joint cavity) to join the blade shell parts. The adhesive is injected into a controlled cavity formed between the first and second blade shell parts, allowing the adhesive to act as a mediator that creates a strong bond while maintaining structural integrity. This resolves the contradiction by providing a reliable joining mechanism that strengthens the glue joint while ensuring overall structural reliability.

The patent changes the parameters of the adhesive joint by controlling the cavity geometry, adhesive injection pressure, and bonding surface preparation. By optimizing these parameters, the adhesive joint strength is enhanced to match or exceed the strength of the blade shell parts themselves, eliminating the weak link in the structure and improving overall reliability.

The patent applies adhesive only in the specific local region where it is needed - within the adhesive joint cavity between the blade shell parts. By concentrating the adhesive in this localized area rather than applying it broadly across the entire bonding surface, the patent achieves strong joints with minimal adhesive material, thereby reducing both weight and material costs while maintaining high glue joint strength.

The patent uses partial action by injecting adhesive only into the specific cavity regions where bonding is required, rather than applying adhesive to the entire surface. This targeted approach ensures sufficient bonding strength is achieved with the minimum necessary amount of adhesive, optimizing the balance between strength, weight, and cost.

The patent confines the adhesive to the specific adhesive joint cavity between the blade shell parts, applying the adhesive only where it is functionally necessary. This localized application strategy achieves strong bonding joints while minimizing the total quantity of adhesive material required, thereby reducing material costs without compromising joint strength.

The patent employs partial action by injecting adhesive only into the defined cavity spaces where bonding is needed, rather than applying adhesive to the entire bonding surface. This ensures that the minimum necessary amount of adhesive is used to achieve the required joint strength, optimizing the balance between bonding performance and material cost.

The patent prepares the adhesive joint cavity in advance during the molding process, creating defined bonding surfaces and controlled cavity geometries before the actual assembly. This preliminary preparation ensures that when the blade shell parts are assembled, the adhesive can be precisely injected into the pre-formed cavities, achieving high manufacturing precision and consistent glue joint properties while maintaining ease of assembly.

The patent controls key parameters such as cavity geometry, bonding surface area, and adhesive injection conditions to achieve precise control over glue joint properties. By optimizing these parameters during the design and manufacturing process, the patent ensures consistent high-quality bonds while maintaining an efficient assembly process.