METHOD AND DEVICE FOR COOLING A HEAT GENERATING COMPONENT
First Claim
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1. A cooling arrangement, comprising:
- a heat spreader comprising a first surface, a second surface, at least one heat absorption chamber and at least one heat dissipation chamber, the at least one heat absorption chamber being in thermal contact with the first surface and the at least one heat dissipation chamber being in thermal contact with the second surface and hydraulically coupled to the at least one heat absorption chamber;
at least one heat generating component arranged in thermal contact with the first surface of the heat spreader;
a cooling fluid, filling at least part of the heat absorption chamber and the heat dissipation chamber;
at least one actuator for driving the cooling fluid; and
a controller for generating at least one control signal for the at least one actuator, such that the cooling fluid can be driven through the at least one heat absorption chamber using a plurality of flow patterns.
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Abstract
The invention relates to a cooling arrangement comprising a heat spreader (2) comprising a first surface (5), a second surface (8), at least one heat absorption chamber (9) and at least one heat dissipation chamber (10), the at least one heat absorption chamber (9) being in thermal contact with the first surface (5) and the at least one heat dissipation chamber (10) being in thermal contact with the second surface (8) and hydraulically coupled to the at least one heat absorption chamber (9). A cooling fluid (13) can be driven from the heat absorption chamber (9) to the heat dissipation chamber (10) using a plurality of flow patterns for cooling the first surface (5).
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Citations
20 Claims
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1. A cooling arrangement, comprising:
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a heat spreader comprising a first surface, a second surface, at least one heat absorption chamber and at least one heat dissipation chamber, the at least one heat absorption chamber being in thermal contact with the first surface and the at least one heat dissipation chamber being in thermal contact with the second surface and hydraulically coupled to the at least one heat absorption chamber; at least one heat generating component arranged in thermal contact with the first surface of the heat spreader; a cooling fluid, filling at least part of the heat absorption chamber and the heat dissipation chamber; at least one actuator for driving the cooling fluid; and a controller for generating at least one control signal for the at least one actuator, such that the cooling fluid can be driven through the at least one heat absorption chamber using a plurality of flow patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An integrated heat spreader, comprising:
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at least one heat absorption chamber having a first surface for interfacing with a heat generating component; at least one heat dissipation chamber having a second surface for interfacing with an external coolant, the second surface being larger than the first surface; a cooling fluid filling, at least partially, the at least one heat absorption chamber and the at least one heat dissipation chamber; at least one fluid interconnection between the at least one heat absorption chamber and the at least one heat dissipation chamber; and at least one pump element for creating a plurality of flow patterns between the at least one heat absorption chamber and the at least one heat dissipation chamber using a forced movement of the cooling fluid. - View Dependent Claims (14, 15, 16, 17)
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18. A method for cooling a heat generating component, the heat generating component being in thermal contact with a first surface of a heat spreader having a plurality of chambers comprising a cooling fluid, comprising:
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determining an average temperature of the first surface or of the heat generating component; determining a position of at least one hot spot of the heat generating component, the at least one hot spot having a temperature above the determined average temperature; mapping the determined position of the at least one hot spot to a location on the first surface of the heat spreader; generating at least one first control signal for generating a first flow pattern of the cooling fluid through the plurality of chambers passing the mapped location; and generating at least one second control signal in alternating turns with the at least one first control signal, for generating a second flow pattern of the cooling fluid through the plurality of chambers, returning the cooling fluid back to its initial location. - View Dependent Claims (19, 20)
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Specification