Air port converging mechanism of backrest ventilating fan and automobile seat

Abstract

The application provides an air port converging mechanism of a backrest ventilation fan. The mechanism comprises a frame wire spring frame, an air guide structure is arranged on one side of the framewire spring frame, and a ventilation fan is arranged on the other side of the frame wire spring frame; a main air path connector is formed in the side, close to an air inlet of the ventilation fan, ofthe air guide structure. A first flexible air blocking cushion layer is arranged between the air guide structure and the ventilation fan in an extruding manner; the first flexible air blocking cushion layer is made of a compressible elastic wind blocking material, and one end of the first flexible air blocking cushion layer is fixedly connected to the air guide structure or the ventilation fan; afirst air path hole is formed in the first flexible air blocking cushion layer; the airflow of the main air path connector enters an air inlet of the ventilation fan through the first air path hole.The air port converging mechanism of the backrest ventilating fan is low in cost, short in air path and low in air loss, a steel wire of the frame wire spring frame does not need to be avoided at a fixed point during use; meanwhile, air path sealing between the air guide structure and the air inlet of the ventilating fan can be achieved, air leakage and air flow loss are avoided, and the reliability of a seat ventilating air path is guaranteed.

Description

technical field [0001] The present application relates to the technical field of car seats, in particular to an air outlet confluence mechanism of a back ventilation fan and a car seat. Background technique [0002] In recent years, with the advancement of car seat comfort system technology, seats with suction-type ventilation devices have become more and more accepted by the public. The ventilation fan of the existing seat back is installed on the frame wire spring frame of the seat back. During installation, it is necessary to avoid the steel wire of the frame wire spring frame at a fixed point. A common method is to use a traditional air guide structure to bypass the frame wire spring frame It communicates with the air inlet of the ventilation fan. This method has a long air path and high wind loss; another common method is to set an intermediate structure between the air guide structure and the ventilation fan. The intermediate structure must avoid the frame wire spring ...

AI Technical Summary

Problems solved by technology

The ventilation fan of the existing seat back is installed on the frame wire spring frame of the seat back. During installation, it is necessary to avoid the steel wire of the frame wire spring frame at a fixed point. A common method is to use a traditional air guide structure to bypass the frame wire spring frame It communicates with the air inlet of the ventilation fan. This method has a long air path and high wind loss; another common method is to set an intermediate structure between the air guide structure and the ventilation fan. The intermediate structure must avoid the frame wire spring frame The steel wire passes through the blank space formed between the steel wire bending structures. The air path area of ​​the intermediate structure is limited by the blank space and will be lower than the area of ​​the fan air inlet. On the one hand, the components and costs are increased, and on the other hand, wind resistance is also generated. , not conducive to seat ventilation

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