The specific embodiment
Below by specific concrete example explanation embodiments of the present invention, person skilled in the art scholar can understand other advantage of the present invention and effect easily by content disclosed in the present specification, also can be implemented or apply by other different concrete example.
Figure 1A is the floor map that illustrates cooling device 100 of the present invention, and Figure 1B illustrates the flat cooling duct 120 of cooling device 100 in Figure 1A in the generalized section of line AA.
As shown in the figure, cooling device 100 comprises carrier 110 and flat cooling duct 120.This carrier 110 can be the article such as clothing, bed clothes, mattress, chair cushion, cushion or back pad.
This flat cooling duct 120 is consisted of highly heat-conductive material, also can mix this highly heat-conductive material by flexible material and be formed.This highly heat-conductive material can be metal material (as metal dust), nano material or heat conduction carbon material etc.
This flexible material can be silica gel, latex, rubber, silica gel glass, nylon, Teflon, polyurethane (polyurethane; PU), polyethylene (polyethylene; PE), polypropylene (polypropylene; PP), polyvinyl chloride (polyvinyl chloride; PVC), polyvinylidene fluoride (polyvinylidene difluoride; PVDF), perfluoro alkoxy fluorocarbon (perfluoroalkoxy fluorocarbon resin; PFA), perfluoroethylene-propylene (perfluorinated ethylene-propylene; FEP) or acrylonitril butadiene styrene resin (acrylonitrile-butadience styrene platics; ABS) etc.
This flat cooling duct 120 has pliability, and the inside or the surface that are arranged at this carrier 110 are upper, and comprises conduit part 121 and flat part 122 one-body molded or that mutually combine and form.The cross sectional shape of this conduit part 121 can be circle or ellipse, and the cross sectional shape of this flat part 122 can be rectangle.
This conduit part 121 and this flat part 122 wriggle in the surface of this carrier 110 or inner, and this conduit part 121 also may extend to the outside of this carrier 110 and forms loop.
This conduit part 121 has via 123, in order to conduct cooling fluid, makes this cooling fluid in interior the circulating of via 123 of this conduit part 121.This cooling fluid can be water, frozen water or its mixture, and this mixture can be antifreeze or pigment etc.
This flat part 122 pastes or is incorporated into the surface of this carrier 110 or inner, makes this cooling fluid amass and carry out heat exchange by the large contact surface of 110, this flat part 122 and this carrier, to improve the heat exchanger effectiveness of this flat cooling duct 120.Therefore, when user uses this cooling device 100, the cooling fluid in this flat cooling duct 120 and via 123 thereof can be carried out heat exchange with this carrier 110 and this user's health, and then reduces the temperature of this carrier 110 and this user's body temperature.
This cooling device 100 can comprise container 130 and low-temperature receiver colloid 131.This container 130 can be cistern, and in order to accommodating this low-temperature receiver colloid 131 and water 132, this conduit part 121 is passed through this container 130, and contacts with this low-temperature receiver colloid 131 or water 132.
This low-temperature receiver colloid 131 can be coated in coating 133, this coating 133 can be positioned in water 132, this low-temperature receiver colloid 131 in order to this via 123 in cooling fluid carry out heat exchange, to reduce the temperature rate of rise or the speed of this cooling fluid, or reduce the temperature of this cooling fluid.
This low-temperature receiver colloid 131 has macromolecule and bubble, therefore therefore its heat transfer property extreme difference can pass through the low heat transfer property matter of this low-temperature receiver colloid 131, improves the duration of this cooling device 100, and extends the service time of this cooling device 100.
This low-temperature receiver colloid 131 can be water and adds thickener, and the composition of this thickener can be PVP (polyvinyl pyrrolidone; PVP), acrylate copolymer (carbopol), cellulose, cellulose starch, agar powder, sodium alginate or spherical chitosan etc.
This cooling device 100 can comprise control module 140, and it connects this conduit part 121, and can be arranged at the outside or inner of this carrier 110.This control module 140 can be controller, switch, switch module or motor, in order to open or to close this cooling fluid circulating in this conduit part 121, or in order to adjust the loop direction of this cooling fluid in this conduit part 121, for example loop direction 124 of clockwise or the loop direction 125 of inverse clock.
Fig. 2 illustrates the temperature changing curve diagram that the flat cooling duct of tool highly heat-conductive material of the present invention is compared with other type of cooling.
As shown in the figure, can make measuring temp to a carrier, initial temperature is 35 ℃ of temperature.The type of cooling to carrier by air only, the temperature decrease speed of the temperature variation curve 151 of carrier is the slowest.In addition, utilize the type of cooling of water pipe to carrier, the temperature decrease speed of the temperature variation curve 152 of carrier is fast compared with air.
In addition, utilize and do not have the flat cooling duct of a highly heat-conductive material type of cooling to carrier, the temperature decrease speed of the temperature variation curve 153 of carrier is fast compared with water pipe again.Finally, the type of cooling of the flat cooling duct that utilizes tool highly heat-conductive material of the present invention to carrier, the temperature decrease speed of the temperature variation curve 154 of carrier is the fastest.For example, as shown in Figure 2, its highly heat-conductive material using is aluminium powder, and soft material is silica gel, and wherein, the adding proportion of aluminium powder is 30%, and the silica gel coefficient of heat conduction can rise to 1.4W/m-k by 0.7W/m-k originally.The adding proportion of aluminium powder ranges up to and reaches 70%, and heat biography coefficient can reach 2.6W/m-k.In addition, above-mentioned highly heat-conductive material also can be Al, AU, Ag, Cu, AlN, Al2O3, SiC, BeO, diamond powder, carbon material, graphite, silicon, silica, BN or its composite material, also can be material or its mixing of above-mentioned material after nanometer; The heat of those highly heat-conductive materials passes coefficient can be between 0.5-1500W/m-k, and preferably the heat of highly heat-conductive material to pass coefficient be more than 50w/m-k, just can make flat cooling duct reach higher heat exchanger effectiveness.
Fig. 3 illustrates the temperature changing curve diagram that low-temperature receiver colloid of the present invention is compared with ice.
As shown in the figure, when using the water of the ice of 250 grams and 100 grams to make measuring temp, in the process of pure water phase change (ice and water coexist), the temperature rate of rise 171 of temperature variation curve 161 is less, but in phase change, finish after (ice all dissolves for water), 172 of the temperature rates of rise of temperature variation curve 161 become large fast.
But in low-temperature receiver colloid of the present invention, when using the water of the low-temperature receiver colloid of 250 grams and 100 grams to make measuring temp, 173 of the temperature rates of rise of temperature variation curve 162 comparatively ease up, and can not produce too large variation, therefore can reduce the fluctuating range of temperature.
In sum, cooling device of the present invention at least has following effect:
1) utilize highly heat-conductive material to form this flat cooling duct, and this flat part is covered on this carrier, make the cooling fluid in this via amass and carry out heat exchange by the large contact surface between this flat part and this carrier, to improve the heat exchanger effectiveness of this flat cooling duct, and then reduce the temperature of this carrier and the body temperature of human body.
2) utilize this low-temperature receiver colloid to carry out heat exchange to the cooling fluid in this via, to reduce the temperature rate of rise or the speed of this cooling fluid, or reduce the temperature of this cooling fluid.Meanwhile, the low heat transfer property matter by this low-temperature receiver colloid, can improve the duration of this cooling device, and reduces the fluctuating range of temperature.
3) utilize this control module open or close this cooling fluid circulating in this conduit part, or adjust the loop direction of this cooling fluid in this conduit part, can promote duration and the heat exchanger effectiveness of this cooling device.
Above-mentioned example is illustrative principle of the present invention, feature and effect thereof only, not in order to limit the category of implementing of the present invention, any personage who has the knack of this skill all can, under spirit of the present invention and category, modify and change above-mentioned example.The disclosed content of any utilization and the equivalence that completes changes and modify, all still should be appended claim and contains.Therefore, the scope of the present invention, should be as listed in claims.