Patent ID: 7642795

Claim:
An attaching structure of a peltier module for attaching the peltier module to an object to be cooled/heated, wherein said object to be cooled/heated is a pusher capable of pressing an electronic device to be tested against a contact portion of a test head for conducting a test on the electronic device, said peltier module is provided on said pusher, said peltier module comprises a substrate capable of composing a cooling surface and a substrate capable of composing a heat release surface, and said peltier module is attached to said pusher so that said cooling surface position on said pusher at an opposite side of the side of pressing the electronic device to be tested, an air jacket in which a cooling air or a heating air can circulate is provided on the heat release surface of the peltier module, the air jacket is attached to the pusher while being biased to the peltier module side by a fixing member which comprises a spring, the air jacket is attached to the pusher in a state of maintaining a constant pressing force against the pusher side by the spring, and accordingly, the peltier module is attached to the pusher so than an excessive pressure is not constantly applied to the peltier module.