Cold plate with insertable integrated thermostatic expansion device and sensing element
First Claim
1. In a cold plate having an inlet to which a refrigerant that is sub-cooled is supplied and an outlet from which the refrigerant that is superheated exits the cold plate, between which inlet and outlet at least one passage for flowing the refrigerant internally through the cold plate is operatively arranged to cool at least one heat, generating device associated with the cold plate, the improvement comprising a thermal expansion valve and a sensing element operatively connected with the thermal expansion valve and arranged in the cold plate such the sensing element is located directly in a stream of the flowing refrigerant exiting the outlet of the cold plate so as to communicate a force created by a pressure change in the sensing element due to a temperature change in a refrigerant stream exiting the cold plate to alter a variable flow cross-sectional area of the thermal expansion valve.
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Accused Products
Abstract
An apparatus for uniform cooling of a single power electronics device, an array of discrete power electronics devices or types of other heat-generating by integrating discrete thermostatic expansion devices (TXVs) and their control directly into each discrete cold plate. The thermostatic expansion device is positioned such that a sensing element is located directly within the exit refrigerant stream.
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Citations
10 Claims
- 1. In a cold plate having an inlet to which a refrigerant that is sub-cooled is supplied and an outlet from which the refrigerant that is superheated exits the cold plate, between which inlet and outlet at least one passage for flowing the refrigerant internally through the cold plate is operatively arranged to cool at least one heat, generating device associated with the cold plate, the improvement comprising a thermal expansion valve and a sensing element operatively connected with the thermal expansion valve and arranged in the cold plate such the sensing element is located directly in a stream of the flowing refrigerant exiting the outlet of the cold plate so as to communicate a force created by a pressure change in the sensing element due to a temperature change in a refrigerant stream exiting the cold plate to alter a variable flow cross-sectional area of the thermal expansion valve.
Specification