Heating exchange chamber for liquid state cooling fluid

Abstract

A heat exchange chamber for liquid state cooling fluid is provided, which comprises a casing and a thermal dissipation device, the casing has a cavity and the thermal dissipation device is sited in the cavity. A cooling fluid flows through the cavity along a flow direction. The cross-sectional area of the cavity whose direction is perpendicular to the flow direction shows linear increase or non-linear increase gradually along the flow direction, and a part of the cooling fluid vaporizes after flowing through the thermal dissipation device. The chamber along the flow direction shows different pressures, and two phase fluid flows automatically due to the pressure difference. The heat exchange chamber for liquid state cooling fluid could lighten the loading of the pump which is for circulating the cooling fluid, and it also achieve the efficacy of saving energy and raising efficiency.

1 . A heat exchange chamber for liquid state cooling fluid, comprising:
 a casing, configured with a cavity, an inlet and an outlet in a manner that the inlet is provided for allowing a cooling fluid to flow into the cavity and the outlet is provided for allowing the cooling fluid to flow out of the cavity as the cooling fluid is enabled to flow in a flowing direction through of the cavity; and   a thermal dissipation device, disposed inside the cavity for allowing a portion of the cooling fluid to flow therethrough so as to be vaporized;   wherein, the cross-sectional area of the cavity that is perpendicular to the flowing direction is constructed increasing gradually along the flowing direction in a manner selected from the group consisting of: a linear manner and a non-linear manner, so as to cause pressure differences along the flowing direction inside the cavity.   
     
     
         2 . The heat exchange chamber of  claim 1 , wherein the casing further comprises: a base, being provided for engaging with a heat source while being arranged in thermal contact with the thermal dissipation device. 
     
     
         3 . The heat exchange chamber of  claim 1 , wherein the thermal dissipation device is constructed smaller than the cavity in profile. 
     
     
         4 . The heat exchange chamber of  claim 1 , wherein the thermal dissipation device further comprises:
 a plurality of heat dissipating fins, each being disposed in a direction parallel with the flowing direction.   
     
     
         5 . The heat exchange chamber of  claim 1 , wherein the portion of the cavity that is not occupied by the thermal dissipation device forms an accommodation space to be provided for the vaporized cooling fluid to accumulate thereat, and the accommodation space is constructed in a manner selected from the group consisting of: the accommodation space is in communication with a portion of the outlet, and the accommodation space is in communication with all the outlet. 
     
     
         6 . The heat exchange chamber of  claim 1 , wherein the diameter of the outlet is larger than that of the inlet. 
     
     
         7 . A heat exchange chamber for liquid state cooling fluid, comprising:
 a casing, configured with a cavity having an accommodation space formed therein, an inlet and an outlet in a manner that the inlet is provided for allowing a cooling fluid to flow into the cavity and the outlet is provided for allowing the cooling fluid to flow out of the cavity; and   a thermal dissipation device, disposed inside the cavity for occupying the remaining space thereof other than the accommodation space, and provided for allowing a portion of the cooling fluid to flow therethrough so as to be vaporized;   wherein, the cooling fluid is enabled to flow through the cavity in a flowing direction; and the cross-sectional area of the accommodation space that is perpendicular to the flowing direction is constructed increasing gradually along the flowing direction in a manner selected from the group consisting of: a linear manner and a non-linear manner, so as to cause pressure differences along the flowing direction inside the accommodation space.   
     
     
         8 . The heat exchange chamber of  claim 7 , wherein the thermal dissipation device further comprises: a plurality of heat dissipating fins, each being disposed in a direction parallel with the flowing direction. 
     
     
         9 . The heat exchange chamber of  claim 7 , wherein the casing further comprises: a base, being provided for engaging with a heat source while being arranged in thermal contact with the thermal dissipation device. 
     
     
         10 . The heat exchange chamber of  claim 8 , wherein the height of each heat dissipating fin is constructed tapering along the flowing direction. 
     
     
         11 . The heat exchange chamber of  claim 7 , wherein the accommodation space is provided for the vaporized cooling fluid to accumulate thereat, and the accommodation space is constructed in a manner selected from the group consisting of: the accommodation space is in communication with a portion of the outlet, and the accommodation space is in communication with all the outlet. 
     
     
         12 . The heat exchange chamber of  claim 7 , wherein the diameter of the outlet is larger than that of the inlet.