Cooling body support cushion and pillow

Abstract

Cushions comprise a plurality of separate and distinct consecutive layers (12) overlying over each other in a depth direction. Each layer (12) includes thermal effusivity enhancing material with a thermal effusivity greater than or equal to 2,500 WsO,5 / (m2K), and the total thermal effusivity of increases from layer to layer in the depth direction (D1). The plurality of layers (12) include a plurality of phase change layers (20,22,24) that each comprise a solid-to-liquid phase change material PCM (26) with a phase change temperature within the range of about 6 to about 45 degrees Celsius. The total mass of the PCM (26) increases from layer to layer in the depth direction (D1). At least one layer (20,22,24) of the plurality of phase change layers (12) includes a gradient distribution of the mass of the PCM (26) and the amount of the thermal effusivity enhancing material TEEM (28) thereof that increases in the depth direction (D1).

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 62 / 722,177, filed August 24, 2018, entitled "Bedding Assembly Having Multiple Layers," and filed September 2, 2018, entitled "Having Multiple Layers U.S. Provisional Patent Application No. 62 / 726,270 for "Automotive Parts Capable of Gradient Cooling", and U.S. Provisional Patent Application No. 62 / 726, filed November 21, 2018, entitled "Bedding Components Having Multiple Layers" 770,707, the entire contents of which are expressly incorporated herein by reference. technical field [0003] The present disclosure generally relates to cooling pads, such as cooling bedding pads, that include phase change materials (PCM) and thermal diffusivity enhanced materials (TEEM), and provide a relatively high level of sustained cooling to the user during use . The present disclosure also relates to methods of making such cooling pads. Background technique [0004] Man...

AI Technical Summary

Problems solved by technology

However, such pillow configurations are only capable of dissipating relatively little heat and / or are uncomfortable for a relatively short period of time.

For example, some of these pillows may actually store heat for a relatively long period of time, resulting in high temperatures, which can be uncomfortable for the user

Therefore, the prior art does not provide a simple, effective, economical and comfortable pillow solution to effectively manage the sleeper's discomfort due to heat

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