Flat water cooling block

Abstract

A flat convective cooling cell is providing the vortical boiling regime of flow of coolant inside it what allows exploiting important advantages of the vortical boiling phenomenon: highest coefficient of heat transfer at very small increasing of hydro-resistance, unchangeable or even increasing performance (thermo-resistance) at increasing of the coolant's discharge, and anti-adhesive action of stream inside cooling cell. The cell comprises a heat intake box and coolant entrance and exit channels with couplers on their ends. The triangular lattice of hemi-spherical dimples on the top and bottom sides of cell provides generation of coherent system of vortical tubes that effectively sucks heat from the dimple into the core of the coolant's stream. Essentially, the cell allows many technologies of manufacturing: milling, stamping, melting, and/or their combinations.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to an apparatus for and a method of cooling of heat generating surfaces.

2. Description of the Related Art

The present invention is a novel application of vortical boiling flows for cooling of computer's chips that are producing a high level of heat, and is presented under priority of invention claimed in the Provisional patent Application U.S. 61/337,268.

The present invention solves a long-stand problem of providing of the equally effective convective cooling at wide range of generated heat power due to simple measure: appropriate changing of the velocity of the coolant that is flowing over a heating surface.

The present invention allows provision of cooling of heat generating surfaces of layers of 3D integral circuit chips and many other constructions that are featuring a narrow space between such layers.

SUMMARY OF THE INVENTION

It is an object of the present invention to teach a means of using of the all profound features of the vortical boiling phenomenon at convective cooling of the highly heated computer's chips.

It is an object of the present invention to teach a means how to avoid a high hydro-resistance in the channel of cooling cell while saving the heat transfer in this channel on highly efficient level, particularly in cases of a narrow space available between heat generating layers.

BRIEF DESCRIPTION OF THE DRAWINGS

Advantages and features of the present invention are better understood with reference to the following and more detailed description and claims taken in conjunction with accompanying drawings, in which like elements are identified with like symbols.

FIG. 1 shows 3D picture of the half part of model Flat QualiCell of the computer chips cooler based on the methods and principles that are disclosed in the present invention.

FIG. 2 shows a method of arranging side edges of conjoint halves of proposed Flat QualiCell.

FIG. 3 shows another method of arranging side edges of conjoint halves of proposed Flat QualiCell.

FIG. 4 shows a drawing of assembled Flat QualiCell from two identical half-parts.

FIG. 5 shows some types of the triangular lattices of sectored spherical dimples that should be used in the heat intake box of cooling devices to provide vortical boiling regime of flow of coolant in it.

FIG. 6 shows the orientation of the lattice of dimples against flow of coolant and direction of sending of dimples in lattice to provide easy ways for the generated vortices to escape dimples.

FIG. 7 shows the structure of flow over triangular lattice of the non-potential dimples in the regime of well-developed vortical boiling streamlining. Generally, each dimple generates two vortical tubes that are connecting this dimple with two neighbor dimples placed ahead along the stream.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The best mode for carrying out the invention is presented in terms of its preferred embodiment, herein depicted within the Figures.

A preferred embodiment of the present invention is the model Flat QualiCell that is assembled of two identical half-parts, one of which is shown in FIG. 1, and assembling drawing of which is shown in FIG. 4.

Some methods of conjunction due to soldering or welding of the matching side edges of said are shown in FIG. 2 and FIG. 3.

Due to two elastic tubes that are fixed (using appropriate standard bandages, if necessary) on the two couplers on the ends of inlet and outlet channels of Flat QualiCell, the device can be incorporated into any appropriate coolant transport system, which will provide device with continuous flow of said coolant through the heat intake box of Flat QualiCell.

The coolant flows into the specifically shaped inlet channel, which has a shape of gradually narrowing and widening slits, and enters the central part of Flat QualiCell—the heat intake box with the triangular lattice of segmental dimples—as a uniform straightforward stream. Therefore, inside the heat intake of box the regime of Flat QualiCell a steady uniform laminar flow of the core stream of coolant is realized. The special measure assures said regime of flow of coolant: the normal cross-section of inlet channel (and consequently—of outlet once) is kept with a constant or even narrowing total square area.

The inner top and bottom surfaces of the heat intake box have should be shaped with an appropriate triangular lattice of segmental dimples like some that are shown in FIG. 5.

The geometrical parameters of each dimple, of their mutual orientation and parameters of lattice as whole should do not allow a potential streamlining by the coolant at any its velocity, so that the vortical boiling regime of streamlining has to develop, just as it was explained in Provisional Patent U.S. 61/366,655.

The mutual orientation of said lattice and bulk flow of the streamlining coolant is shown in FIG. 6, so that in the well-developed stage of the vortical boiling regime of streamlining the picture of flow inside the heat intake box has a structure as it is shown in FIG. 7.

It is important to avoid any parasitic turbulization of stream of coolant all over convective cooling cell, what requires proper conjugation of all surfaces inside Flat QualiCell.

The foregoing descriptions of specific embodiments of the present invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to precise forms disclosed and, obviously, many modifications and variations are possible in light of the above teaching. The embodiments are chosen and described in order to best explain principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and its various embodiments with various modifications as are suited to the particular use contemplated. It is intended that a scope of the invention be defined broadly by the Drawings and Specification appended hereto and to their equivalents. Therefore, the scope of the invention is in no way to be limited only by the following exemplary claims nor by any possible, adverse inference under the rulings of Warner-Jenkins Company, v. Hilton Davis Chemical, 520 US 17 (1997) or Festo Corp. V. Shoketsu Kinzoku Kogyo Kabushiki Co., 535 U.S. 722 (2002), or other similar case law or subsequent precedent should not be made if such claims are amended subsequent to this Provisional Patent Application.

Claims

1. A convective cooling cell, that being in good thermo-mechanical contact with a heated surface, providing an intake of heat from this surface and transport of it into an appropriate refrigerator due to fluid coolant that is passing through said cell, comprising: and wherein:

a heat intake box, the top and bottom inner surfaces, both or one of which is shaped in the form of triangular lattice of sectored spherical dimples that do not allow a potential streamlining by the coolant at any its velocity, so that the vortical boiling regime of streamlining has to develop;

an inlet and outlet coolant transporting channels, the normal cross-section of which is kept with a constant or even narrowing total square area;

couplers on the ends of each channel to connect said cell with the external coolant transporting communications;

inlet channel is shaped in such a way, which provides non-broken stream of coolant on the entrance of the heat intake box;

the coolant transporting channel into the heat intake box is organized in such a way that provides a straight-forward core flow of coolant from entrance to exit of said box;

the triangular lattice of sectored spherical dimples on the top and bottom inner surfaces of the heat intake box is oriented in such a way that the distance between any two neighbor dimples, that are laying along the same straight streamline of coolant, is square root of 3 times longer than the parameter of said lattice;

the triangular lattice of sectored spherical dimples on the top and bottom inner surfaces of the heat intake box is organized in such a way that provides the regime of vortical boiling flow of coolant into said box;

dimples in the triangular lattice of sectored spherical dimples on the top and bottom inner surfaces of the heat intake box are grinded along 30 degrees in both side in respect to the direction of stream of coolant into the heat intake box, in order to provide saddle-like path between dimples along grinded directions;

and all constructive elements of described device are placed in flat lain that all device appears as a flat construction, thickness of which everywhere does not exceeds the thickness of its central part—heat intake box.

2. The apparatus of claim 1, further comprising two parts—an upper part and a lower part that, being soldered or welded one on top of other, accomplish said convective cooling cell.