Abstract: In a temperature control device, a plurality of screening cylinders each having a different diameter are concentrically arranged within a liquid tank to concentrically form a plurality of layered channels which are communicated to define a circulation passage through which constant-temperature fluid flows. A heat transfer tube through which liquid chemical flows is disposed in any one of the channels such that heat exchange between the liquid chemical and the constant-temperature fluid is performed via the heat transfer tube for controlling temperatures of the liquid chemical.

Abstract: In a temperature control device, a plurality of screening cylinders each having a different diameter are concentrically arranged within a liquid tank to concentrically form a plurality of layered channels which are communicated to define a circulation passage through which constant-temperature fluid flows. A heat transfer tube through which liquid chemical flows is disposed in any one of the channels such that heat exchange between the liquid chemical and the constant-temperature fluid is performed via the heat transfer tube for controlling temperatures of the liquid chemical.

Abstract: A non-rectangular thermo module is formed by disposing a plurality of Peltier devices between a pair of heat radiating plates, wherein the heat radiating plate has a circular or straight outer peripheral contour portion and inner peripheral contour portion and right/left side edge contour portions connecting the outer peripheral contour portion and the inner peripheral contour portion and the outer peripheral contour portion is formed longer than the inner peripheral contour portion while the right/left side edge contour portions contain first straight lines which are not parallel and inclined toward the inner peripheral contour portion such that they narrow gradually, the first straight lines being provided at least in part of the right/left side edge contour portions.

Abstract: This invention provides a non-rectangular thermo module formed by disposing a plurality of Peltier devices between a pair of heat radiating plates, wherein the heat radiating plate has a circular or straight outer peripheral contour portion and inner peripheral contour portion and right/left side edge contour portions connecting the outer peripheral contour portion and the inner peripheral contour portion and the outer peripheral contour portion is formed longer than the inner peripheral contour portion while the right/left side edge contour portions contain first straight lines which are not parallel and inclined toward the inner peripheral contour portion such that they narrow gradually, the first straight lines being provided at least in part of the right/left side edge contour portions.