Tempering module with peltier elements

Abstract

The invention relates to a tempering module comprising at least two Peltier elements (2), wherein each Peltier element (2) has a first side and a second side, and wherein said at least two Peltier elements (2) are oriented with their first side so as to be in thermal contact with a common shared first heatsink (1). Each Peltier element (2) is oriented with its second side so as to be in thermal contact with a separate second heatsink (4). The invention further relates to a tempering chamber comprising said tempering module.

1 . A tempering module comprising at least two Peltier elements, wherein each Peltier element has a first side and a second side, wherein said at least two Peltier elements are oriented with their first side so as to be in thermal contact with a common shared first heatsink suitable to be heated, and wherein each Peltier element is oriented with its second side so as to be in thermal contact with an individual second heatsink suitable to be cooled. 
     
     
         2 . The tempering module according to  claim 1 , wherein a spacer is arranged between the second side of each Peltier element and each corresponding individual second heatsink to allow thermal contact between the Peltier element and the second heatsink. 
     
     
         3 . The tempering module according to  claim 2 , wherein the first heatsink and the second heatsink are attached to the spacer. 
     
     
         4 . The tempering module according to  claim 1 , wherein the first heatsink is attached to the spacer by means of first screws, preferably provided with a thermal insulating element to limit the thermal contact between the first heatsink and the spacer. 
     
     
         5 . The tempering module according to  claim 1 , wherein the second heatsink is attached to the spacer by means of second screws. 
     
     
         6 . The tempering module according to  claim 1 , wherein the screw connection by means of the first and/or second screws comprises a resilient element. 
     
     
         7 . The tempering module according to  claim 1 , wherein the first and second sides of each Peltier element as well as both sides of the first and each second heatsink in thermal contact with the corresponding Peltier element are coated with a layer of thermally conductive paste. 
     
     
         8 . The tempering module according to  claim 1 , wherein the first and/or second heatsink is formed as a finned air heatsink. 
     
     
         9 . The tempering module according to  claim 8 , wherein the fins of the first heatsink are oriented parallel to the fins of the second heatsink or perpendicular to the fins of the second heatsink. 
     
     
         10 . A tempering chamber comprising a wall with the tempering module mounted according to  any one of the preceding claims , wherein the first heatsink is arranged on an outer side of said wall, on which a first fan is arranged for pushing air into the first heatsink in a substantially perpendicular direction to the plane of the first side of the Peltier element, wherein at least two second heatsinks and a second fan for pushing air into the second heatsinks in a direction substantially parallel to the plane of the second side of the Peltier element are arranged on an inner side of said wall. 
     
     
         11 . The tempering chamber according to  claim 10 , wherein at least one flow rectifier is arranged on the inner side of said wall.