Air-conditioned seat cushion

Abstract

An air-conditioned seat cushion includes a flexible seat cushion body bendable to fit a car seat and having a flexible flat fan mount forwardly extended from the front open side thereof and multiple air channels and air holes for ventilation, a fan affixed to the flexible flat fan mount, a hard fan cowl fixedly mounted in the seat cushion body and having shunt passages arranged in air communication between the air channels of the seat cushion body and the air output port of the fan, and a flow guide pivoted to the fan cowl and coupled to the air output port of the fan for biasing with the fan relative to the fan cowl when the flexible flat fan mount is bent relative to the fan cowl to fit a car seat and for guiding currents of air from the air output port of the fan into the shunt passages and the air channels of the seat cushion body.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to seat cushions for car seats and more particularly, to an air-conditioned seat cushion, which uses a hard fan cowl to support the air channels in the seat cushion body of the seat cushion in shape and to guide currents of air from the fan through the air channels efficiently.[0003]2. Description of the Related Art[0004]A sofa chair, car seat or office chair generally has a flexible or soft cushion member made in a predetermined shape and supported on the seat or chair frame, and a covering of nonwoven fabric, genuine leather or synthetic leather covered on the flexible or soft cushion member. An orthopedically engineered seat gives an excellent support to the user sitting on it. However, because the nonwoven fabric, genuine leather or synthetic leather covering of a seat does not breathe, heat will be accumulated on the top of the seat after a long sitting during a hot day, causing the us...

AI Technical Summary

Benefits of technology

[0009]It is another object of the present invention to provide an air-conditioned seat cushion, which utilizes a pivoted flow guide to couple the fan to the fan cowl, allowing the fan to be set between a horizontal position and a vertical position relative to the fan cowl.

[0010]To achieve these and other objects of the present invention, the air-conditioned seat cushion comprises a flexible seat cushion body, which is bendable to fit a car seat and has a flexible flat fan mount forwardly extended from the front open side thereof and multiple air channels and air holes for ventilation, a fan affixed to the flexible flat fan mount of the flexible seat cushion body, a hard fan cowl, which is fixedly mounted in the seat cushion body and has shunt passages arranged in air communication between the air channels of the seat cushion body and the air output port of the fan, and a flow guide pivoted to the fan cowl and coupled to the air output port of the fan. The flow guide is biasable with the fan relative to the fan cowl when the flexible flat fan mount is bent relative to the fan cowl to fit a car seat so that the flow guide guides currents of air from the air output port of the fan into the shunt passages and the air channels of the seat cushion body efficiently.

[0011]During application, the hard fan cowl gives a good support to the user sitting on the air-conditioned seat cushion, avoiding excessive deformation of the air channels and facilitating flowing of air from the fan through the air channels and the air holes. Further, the flow guide enables currents of air to be distributed evenly from the air output port of the fan through the shunt passages of the fan cowl into the air channels of the seat cushion body, lowering wind resistance and smoothening operation of the fan.

Problems solved by technology

However, because the nonwoven fabric, genuine leather or synthetic leather covering of a seat does not breathe, heat will be accumulated on the top of the seat after a long sitting during a hot day, causing the user to feel uncomfortable.

Further, accumulation of heat on the top of the seat or sweating could lead to Eczema or bed sores in the contact area of the user's body skin.

However, this kind of seat cushion cannot eliminate accumulation of heat when a person is sitting on it for a long time.

1. When a person is sitting on the air-conditioned seat cushion, the flexible ribs A1 and the air channels A2 will be forced to deform by the pressure of the user. In consequence, the height of the front fan mounting space A3 of the flexible plastic board member A outside the fan C will be lowered, obstructing the flow of air from the fan through the air channels A2 and lowering the ventilation performance of the air-conditioned seat cushion.

2. When the air-conditioned seat cushion is placed on a car seat to keep the front part of the air-conditioned seat cushion in vertical, the area of the air-conditioned seat cushion that turns through 90-degrees at the front side of the car seat tends to be deformed by the pressure of the user sitting on the air-conditioned seat cushion to block the air passage between the fan C and the air channels A2, resulting in high wind resistance during operation of the fan C. Under this situation, the fan C may burn out.

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