Ventilative changes in temperature pad

The utility model provides a ventilative changes in temperature pad, includes that inside is the empty cardioid outer body that fills up, fills up internal portion outward and has coiled a plurality of heat exchange tubes, the mouth of pipe of heat exchange tube stretches out the outer body that fills up to be connected through heat transfer joint and heat transfer host computer, form the heat transfer circulation through the heat transferring medium between heat exchange tube and the heat transfer host computer. Filling up internal heat exchange tube surface outside being located and having laid the three -dimensional ventilative body of three -dimensional screen cloth or space, its surface is equipped with a plurality of bleeder vents, forms air breathable channel. The utility model discloses fill up the internal heat exchange tube that sets up outward, the heat exchange tube is placed in three -dimensional screen cloth moreover, realizes the heat transfer through the changes in temperature heat transferring medium in the pipeline, can also assist the heat transfer through natural convection or air -out, and the heat transfer is effectual, can effectively cushion the heat transfer speed of heat exchange tube moreover, and constant temperature effect is good, makes the human body feel comfortable.