Information handling system thermal and EMI enclosures
An information handling system EMI shield system couples to a circuit board to enclose an electronic device in a Faraday cage and includes a surface painted with a graphene paint to aid in dissipation of excess thermal energy from the electronic device. The EMI shield system has a frame that couples to the circuit board and interfaces with ground to define a boundary around an electronic device connector and has a shield that couples as a separate piece over the frame to enclose the electronic device. Graphene paint applied to some or all of the shield encourages rejection of excess thermal energy from within shield.
1. An information handling system comprising:
a housing;
a circuit board coupled to the housing and having a ground;
a processor disposed in the housing and interfaced with the circuit board, the processor operable to execute instructions that process information;
a memory disposed in the housing and interfaced with the circuit board, the memory operable to store the instructions and information;
a device connector coupled to the circuit board and interfaced with the processor, the device connector operable to accept an electronic device to communicate with the processor;
a frame coupled to the circuit board around the device connector and sized to accept the electronic device within the frame, the frame interfaced with the ground; and
a shield separate from the frame and configured to couple over the frame to enclose the electronic device, the shield coated at least over part of a surface with graphene paint.
2. The information handling system of claim 1 wherein:
the device connector is an M.2 connector; and
the electronic device comprises a solid state drive.
3. The information handling system of claim 1 wherein the electronic device comprises a radio.
4. The information handling system of claim 1 wherein:
the shield has inner and outer side surfaces that define a lip; and
the frame engages the shield in the lip and against the outer side surface with a compression member.
5. The information handling system of claim 1 wherein at least a portion of the frame fits into a slot formed in the circuit board to contact the ground.
6. The information handling system of claim 1 wherein the graphene paint covers only an outer surface of the shield.
7. The information handling system of claim 1 wherein the graphene paint covers all of both an inner and an outer surface of the shield.
8. The information handling system of claim 1 further comprising a ground gasket coupled to the circuit board under the electronic device and in contact with the shield and the ground exposed at the circuit board upper surface.
9. The information handling system of claim 8 wherein the frame is coated with graphene paint.
10. A method for coupling an electronic device to a circuit board within an information handling system housing, the method comprising:
coupling a device connector to the circuit board;
coupling a frame to the circuit board around the device connector, the frame having a perimeter sized to fit around an electronic device that couples to the device connector, the frame interfaced with a ground of the circuit board;
coupling the electronic device to the device connector within the frame;
painting graphene on a surface of a shield, the shield sized to couple to the frame; and
coupling the shield to the frame and over the electronic device to define a Faraday cage.
11. The method of claim 10 wherein:
the device connector is an M.2 connector; and
the electronic device comprises a solid state drive.
12. The method of claim 10 wherein the electronic devices comprise a radio.
13. The method of claim 10 further comprising:
forming a slot in the circuit board; and
inserting the frame in the slot to contact ground.
14. The method of claim 10 further comprising:
coupling a gasket to the circuit board under the electronic device, the gasket interfaced with the ground; and
contacting the shield against the gasket to interface the shield with ground.
15. The method of claim 10 wherein painting the shield further comprises painting both an interior surface and exterior surface of the shield.
16. An electromagnetic interference (EMI) shield system comprising:
a frame configured to couple against a circuit board interfaced with a ground of the circuit board;
a device connector configured to couple to the circuit board and to accept an electronic device; and
a shield configured to couple to the frame and enclose the device connector and electronic device, the shield painted over at least a portion of a surface with a graphene paint.
17. The EMI shield system of claim 16 wherein:
the device connector comprises an M.2 connector; and
the graphene paint covers only an exterior surface of the shield.
18. The EMI shield system of claim 16 wherein the graphene paint covers only an interior surface of the shield.
19. The EMI shield system of claim 16 wherein the graphene paint covers the entirety of the interior and exterior of the shield.
20. The EMI system of claim 16 further comprising a gasket configured to lay between the electronic device and the circuit board to interface with ground, the gasket contacting the shield to interface the shield with ground.