A new type of corner key for fixing frame

Abstract

The invention relates to a novel corner key for fixing a frame, and belongs to the technical field of photovoltaic equipment. The corner key comprises a first plugboard and a second plugboard. The corner key is characterized in that one end of the first plugboard is hinged to one end of the second plugboard, a torsional spring is arranged at the hinged joint between the first plugboard and the second plugboard, fasteners used for being connected to a rectangular opening of the frame in a fastening mode are arranged at the other ends of the first plugboard and the second plugboard respectively, each of the first plugboard and the second plugboard is of an internally hollow structure, and a plurality of reinforcing ribs are arranged in each internally hollow structure and divide the interior of the internally hollow structure into a plurality of hollow triangular prisms. The novel corner key has the advantages that the clamping force of the corner key to the frame is increased through cooperation between the torsional spring and the fasteners, and thus, a protection structure of a photovoltaic cell taking the frame as a fixing body is firmer; meanwhile, the strength of the corner key is enhanced through the reinforcing ribs arranged horizontally.

Description

technical field [0001] The invention relates to an angle key for fixing a frame and belongs to the technical field of photovoltaic equipment. Background technique [0002] As we all know, photovoltaic cells and their related components are mostly soft or fragile materials. How to ensure the normal operation of photovoltaic components in harsh outdoor working environments. Usually, the method of increasing the mechanical strength is adopted, but we cannot meet our requirements by simply increasing the mechanical strength of the photovoltaic module itself. Therefore, we consider a simpler way, which is to add a frame to the photovoltaic module. [0003] As a frame, the integrated structure is not a good solution due to the difficulty of processing, installation, molding and other problems, so we adopt the method of multi-frame combination, and the corner key is often used in the field of photovoltaic equipment technology to connect the two frames. Fasteners for fixing. [0...

AI Technical Summary

Problems solved by technology

However, this treatment also faces a new problem, how to ensure the stress retention of the teeth under the long-term deformation state

If this problem cannot be solved, the corner key will gradually lose its clamping force on the frame during use, making the overall structure of the frame loose, and eventually the protective structure of the photovoltaic cells with the frame as the fixed main body may fall apart, resulting in economic losses or other damages. major hazard

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