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a car seat

A technology for car seats and seats, which is applied in the direction of vehicle seats, seat heating/ventilation devices, vehicle parts, etc., and can solve the problem of heating elements without automatic constant temperature and power compensation functions, large thermal inertia, and low electrothermal conversion efficiency, etc. problem, to avoid the rapid rise of the seat temperature and achieve the effect of uniform temperature

Active Publication Date: 2022-02-18
SU ZHOU CSTAR MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used heating elements are metal resistance wire, metal foil film coating and other materials, and nickel-chromium alloy is the most used. However, for nickel-chromium alloy, there are still deficiencies in the following aspects: low resistivity, and electrothermal conversion efficiency Low, low heating rate, heating element without automatic constant temperature and power compensation function, complex structure of electric heating system, large thermal inertia and other shortcomings; carbon crystal materials prevailing on the market mainly use carbon nanotubes, carbon black, etc. as fillers, and have a half-life Short and not long enough service life
[0007] Although the above-mentioned published patent documents all utilize the super heating ability of graphene, they also bear their own defects at the same time, that is, the phenomenon of rapid temperature rise and rapid temperature drop after power failure occurs during use, and at the same time The phenomenon of non-uniform temperature of the heating film occurs, therefore, those skilled in the art urgently need to find a way to solve the above problems

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0048] This embodiment provides a car seat, which includes a seat body and a graphene electrothermal film for supplying heat to the seat body.

[0049] Such as Figure 1-2 As shown, the graphene electrothermal film 1 includes a first insulating protective layer 11, an intermediate layer and a second insulating protective layer 16 arranged from top to bottom, and the intermediate layer has a uniform distribution between the first insulating protective layer 11 and the second insulating protective layer 16. multiple between the two insulation protection layers 16;

[0050] Wherein, the intermediate layer includes a heat storage slow-release layer 12 , a graphene heating layer 13 , a conductor 14 and a heat reflection layer 15 arranged from top to bottom, and the conductor 14 is used to energize the graphene heating layer 13 . In this example, the heat generated by the graphene heating layer 13 passes through the first insulating protective layer 11 to the seat body and then hea...

Embodiment 2

[0069] This embodiment provides a car seat, and the difference from Embodiment 1 is:

[0070] The heat storage slow release layer is made of heat storage slow release slurry, its thickness is about 120 μm, in parts by mass, the heat storage slow release slurry contains white carbon black particles (thermal conductivity is about 27W·m -1 ·K -1 , the specific heat capacity is about 745J·K -1 ·Kg -1 ) 25 parts, 20 parts of water-based acrylic resin, 20 parts of water; additives: 0.5 part of potassium polyacrylate, 0.2 part of polysiloxane defoamer, 0.3 part of diethylethanolamine, 1 part of polyacrylic acid thickener . The heat storage slow-release slurry is prepared by the following method: weighing each raw material according to the formula, mixing white carbon black particles, water and water-based acrylic resin ester, and then adding polyacrylic acid potassium salt and polysiloxane defoaming Agent, diethylethanolamine and polyacrylic acid thickener are mixed to form a slu...

Embodiment 3

[0075] This embodiment provides a car seat, which differs from Embodiment 1 in that:

[0076] Specifically, the heat storage slow-release layer is made of heat storage slow-release slurry, the thickness of which is about 90 μm, in parts by mass, and the heat storage slow-release slurry contains zinc oxide particles (the thermal conductivity is about 29.98 W·m -1 ·K -1 , the specific heat capacity is about 490J·K -1 ·Kg -1 ) 28 parts, 22 parts of water-based polyurethane resin, 20 parts of water; additives: 0.5 part of potassium polyacrylate, 0.2 part of silicone defoamer, 0.3 part of diethylethanolamine, 1 part of polyacrylic acid thickener. The heat storage slow-release slurry is prepared by the following method: Weigh each raw material according to the formula, mix zinc oxide particles, water and water-based polyurethane resin, and then add polyacrylic acid potassium salt, organic silicon defoamer, diethyl Ethanolamine and polyacrylic acid thickener are mixed to form a slu...

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Abstract

The invention discloses a car seat. The car seat includes a seat body and a graphene electric heating film for supplying heat to the seat body. The graphene electric heating film includes a first insulating protection layer, a graphene heating layer and a second heating layer. Insulation protective layer, and the conductor that is used to energize the graphene heating layer, the graphene electrothermal film also includes the thermal storage slow-release layer positioned between the first insulating protective layer and the graphene heating layer; wherein, the thermal storage slow-release layer consists of Made of thermal storage slow-release slurry, the thermal storage slow-release slurry contains thermal storage filler and the first resin, and the thermal conductivity of the thermal storage filler is 15‑50 W•m ‑1 • K ‑1 The car seat of the present invention can gradually heat up at a constant speed during use and slowly cool down after power failure, and can also make the temperature everywhere more uniform, avoiding the rapid rise in seat temperature caused by excessive heating and cooling in the prior art And the uncomfortable situation of the human body caused by excessive cooling.

Description

technical field [0001] The invention belongs to the technical field of seats, and in particular relates to a car seat. Background technique [0002] With the development of science and technology in the field of vehicle transportation, people have higher and higher requirements for vehicle ride comfort, and seat heating technology has also emerged as the times require, and is gradually applied to the field of mid-to-high-end passenger vehicles. At present, the commonly used heating elements are metal resistance wire, metal foil film coating and other materials, and nickel-chromium alloy is the most used. However, for nickel-chromium alloy, there are still deficiencies in the following aspects: low resistivity, and electrothermal conversion efficiency Low, low heating rate, heating element without automatic constant temperature and power compensation function, complex structure of electric heating system, large thermal inertia and other shortcomings; carbon crystal materials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N2/56B32B9/00B32B9/04B32B27/40B32B27/20B32B27/08B32B27/36B32B15/20B32B15/09B32B33/00B32B3/24
CPCB32B3/266B32B9/007B32B9/045B32B9/048B32B15/09B32B15/20B32B27/08B32B27/20B32B27/36B32B27/40B32B33/00B60N2/5678B32B2307/302B32B2264/12B32B2264/0292B32B2255/06B32B2255/205B32B2605/08
Inventor 徐冬春蔺洪振郝永波高春华雍婷婷
Owner SU ZHOU CSTAR MATERIAL TECH CO LTD
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