Cooling plate with cooling patterns and metal casing using same
AssigneeHon Hai Precision Industry Co., Ltd.
InventorWEI-CHIH HUNG
Life of this patent
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Abstract
A metal cooling plate functioning includes a plurality of through cooling patterns. Each cooling pattern includes a ventilation through hole and two “V”-shaped annular grooves, each annular groove surrounding the outside the ventilation through hole. Each side of the cooling plate defines the “V”-shaped annular groove, where the annular grooves being paired are directly opposing each other. Areas of the metal cooling plate directly between respective bottoms of the opposing grooves form an annular plastic zone in which electrical resistance is higher than a resistance of the metal base at all other areas.
Claims14
A cooling plate, comprising a metal base, the metal base comprising:
- a first surface;
- a second surface opposite to the first surface;
- a plurality of cooling patterns, each cooling pattern comprising a ventilation through hole passing through the first and the second surfaces and at least one annular groove, a vertical distance between the first surface and the second surface defining a thickness of the metal base, and each annular groove surrounding the ventilation through hole;
- wherein at least one of the first surface and the second surface defines the at least one annular groove, a width of each annular groove at a top of the annular groove is less than a width of each annular groove at a bottom of the annular groove, thereby forming a first tip at the bottom of each annular groove, a region of the metal base corresponding to the first tip forms an annular plastic zone which has a resistance higher than a resistance of the metal base in other areas besides the annular plastic zone.
A metal casing, comprising:
- a metal base including a first surface and a second surface opposite to the first surface;
- and
- a plurality of cooling patterns defined in the metal base, each cooling pattern comprising a ventilation through hole passing through the first and the second surfaces and at least one annular groove, a vertical distance between the first surface and the second surface serving as a thickness of the metal base, and each annular groove surround an outside of the ventilation through hole;
- wherein at least one of the first surface and the second surface defines the at least one annular groove, a width of each annular groove at a top of the annular groove is less than a width of each annular groove at a bottom of the annular groove, thereby forming a first tip at the bottom of each annular groove, a region of the metal base corresponding to the first tip forms an annular plastic zone which has a resistance higher than a resistance of the metal base in other areas besides the annular plastic zone.
Dependencies are inferred from the claim text.