The utility model discloses a circulating changes in temperature drape structure of thermostatting liquid, including a back of the body shoulder pad body, wherein, this back of the body shoulder pad body is formed through high frequency hot -pressing sealing by two thin type lamellar bodies, and the shape phase -match of its shape and human back and shoulder, the internal formation of this back ofthe body shoulder pad rivers circulation canal, these rivers circulation canal can correspond the position and the shoulder of the neighbouring lateral margin in human back, and the position of the neighbouring vertebra in human back, furthermore, the adjacent position of a lateral margin of this back of the body shoulder pad body forms a water inlet and a delivery port, the liquid that a thermostatting liquid feeding mechanism provided can be received to this water inlet, and this liquid can be flowed through behind these rivers circulation canal, flow back to the feeding mechanism to thermostatting liquid by this delivery port again, so, position that can be through these rivers circulation canal, the effect of cooling down or heating human back and shoulder.本發明係一種恆溫液體循環式冷暖披覆結構,包括一背肩墊體,其中,該背肩墊體係由二薄形片體經高週波熱壓封合而成,且其構形係與人體背部及肩部之構形相匹配,該背肩墊體內形成一水流循環通道,該水流循環通道會對應於人體背部鄰近側緣的部位及肩部,及人體背部鄰近脊椎的部位,又,該背肩墊體之一側緣的相鄰位置形成一進水口及一出水口,該進水口能接收一恆溫液體供應裝置所提供之液體,且該液體能流經該水流循環通道後,再由該出水口流回至恆溫液體供應裝置,如此,即能藉由該水流循環通道之位置,對人體背部與肩部進行降溫或增溫之效果。10‧‧‧背肩墊體121‧‧‧進水口122‧‧‧出水口13‧‧‧水流循環通道131‧‧‧第一外圍通道132‧‧‧第二外圍通道133‧‧‧第一中央通道134‧‧‧第二中央通道135‧‧‧第二出水通道136‧‧‧第二入水通道20‧‧‧支撐部21‧‧‧進水接頭22‧‧‧出水接頭40‧‧‧頸墊體421‧‧‧第一入水通道422‧‧‧第一出水通道43‧‧‧迴流通道45‧‧‧束緊帶50‧‧‧緩衝部
