电发热袜发热区域对足部表面温度的影响

Effect of heating area of electric heating socks on foot temperature

为探究电发热袜发热区域不同时对足部整体及各个区域升温保暖的影响,结合足部的生理特征和袜子的结构特征进行了区域划分,选择了足背前部、足底前部及足底中部3个区域为发热区域,并设计了单区域和双区域发热的6款电发热袜,用红外热像仪和激光多普勒血流检测仪分别探测足部在穿着不同款式电发热袜时各区域表面温度变化和微血管血流量的变化,量化对比足部升温效果。实验结果表明:电发热袜的款式虽有所差异,但均具有一定的保暖效果;发热片对应的足部区域升温最为明显,其次是邻近区域;相比之下足背单区域加热对足血管微循环的影响较小,双区域中足底加热组合比足背与足底加热组合较好。

In order to explore the effect of different heating areas of electric heating socks on the warming of the foot,the foot/sock area was divided according to the physiological characteristics of the foot and the structural characteristics of the socks.Three areas including the front instep,the front of the sole and the middle of the sole were selected as the heating area,and six socks with the single heating area and double heating areas were designed.The infrared camera and Laser-Doppber Flowmetry(LDF)were used to detect the temperature change and blood perfusion of the surface of each area when the foot was wearing different styles of electric heating socks,and the effect of warming the foot was quantified.Experiments show that although the styles of electric heating socks are different,they all have the effect of keeping warm.The temperature rise in the foot area corresponding to the heat-generating sheet is the most obvious,followed by the adjacent area.The single heating area has little effect on the microcirculation of foot blood vessels,and the combination of sole heating is better than the combination of the front instep and the sole in the double region.