Air-flow-by cooling technology and air-flow-by circuit board modules

1. A system comprising:

a plurality of circuit board modules, wherein each circuit board module includes:

a primary cover including a plurality of fins or channels for guiding cooling air flowing on a surface of the primary cover;

a secondary cover including a plurality of fins or channels for guiding cooling air flowing on a surface of the secondary cover;

a circuit board sandwiched between the primary cover and the secondary cover,

a gasket seal provided along a perimeter of the primary cover so that the primary cover, the secondary cover and the gasket seal form a continuous unbroken shell that acts as a faraday cage, wherein the gasket is configured to prevent external environmental contaminants from penetrating inside the module and is configured to protect the module from electromagnetic interference by reducing an electromagnetic field generated by the circuit board;

a backplane, wherein the plurality of circuit board modules are coupled to the backplane the plurality of circuit board modules including a first circuit board module and a second circuit board module, the primary cover of the first circuit board module facing the secondary cover of the second circuit board module when coupled to the backplane so that the fins or channels of the primary cover of the first circuit board module are out of alignment along a longitudinal axis that extends through a length of the first circuit board module with the fins or channels of the secondary cover of the second circuit board module and there being an air gap between the fins or channels of the primary cover of the first circuit board module and the fins or channels of the secondary cover of the second circuit board module so that a vortex of air is created between the first circuit board module and the second circuit board module when cooling air passes between the first circuit board module and the second circuit board module; and

wherein the geometry and/or spacing of the fins or the channels is non-uniform so that an amount of cooling air flowing over a first of the fins substantially differs from an amount of cooling air flowing over a second of the fins or an amount of cooling air flowing over a first of the channels substantially differs from an amount of cooling air that flows over a second of the channels; the geometry being created by the covers of the circuit board modules having a controlled spacing form each other and do not touch each other, the vortex of air being controlled by the rising and lowering of the geometry to impact air flow and air speed;

a backplane cover plate coupled to the backplane, wherein the backplane cover plate is provided between the backplane and the plurality of modules coupled to the backplane and serves as a seal to limit external contaminants from reaching inside the backplane.

2. The system of claim 1 , further comprising:

a backplane gasket coupled to the backplane cover plate, wherein the backplane gasket is provided between the backplane cover plate and the one or more modules coupled to the backplane.

3. The system of claim 1 , wherein each circuit board module further includes:

one or more ejectors for decoupling the circuit board module from the backplane.

4. The system of claim 1 , wherein the air gap is less than 0.05 inch wide.