Systems and methods for coupling a circuit board to an information handling system chassis
View Patent ↗In accordance with embodiments of the present disclosure, an information handling system may include a chassis and a circuit board. The chassis may have one or more structural posts. The circuit board may mechanically couple to the chassis, and the circuit board may comprise a substrate having formed therein one or more through-holes and one or more hooks each configured to mechanically couple the circuit board to the chassis via a corresponding structural post of the one or more structural posts, each of the one or more hooks comprising one or more mounting features, wherein each of the one or more mounting features is sized and shaped to engage with a corresponding one of the one or more through-holes in order to mechanically couple such hook to the substrate.
1. A circuit board comprising:
a substrate having formed therein one or more through-holes; and
one or more hooks each configured to mechanically couple the circuit board to a chassis, each hook comprising one or more mounting features and a contour configured to engage with a structural post coupled to and extending substantially perpendicularly from a structural member of the chassis, with the structural post supporting the hook, the contour lying generally in a plane perpendicular to a substantially planar surface of the substrate to which the one or more hooks are mounted, wherein each of the one or more mounting features is sized and shaped to engage with a corresponding one of the one or more through-holes in order to mechanically couple such hook to the substrate.
2. The circuit board of claim 1 , wherein at least one of the one or more through-holes is plated with an electrically-conductive material.
3. The circuit board of claim 1 , wherein each of the one or more mounting features is mechanically coupled to one of the one or more through-holes with solder.
4. The circuit board of claim 1 , wherein the contour is sized and shaped so as to align the circuit board in a desired position with respect to the chassis.
5. The circuit board of claim 1 , wherein at least one of:
the one or more hooks; and
the one or more through-holes;
are designed to have a minimal impact to the substrate in order to enable maximum board and signal routing density for the circuit board.
6. A method comprising:
forming one or more through-holes in a circuit board substrate; and
mechanically coupling one or more hooks to the substrate, wherein:
each hook is configured to mechanically couple the circuit board to a chassis;
each hook comprises one or more mounting features, further wherein each of the one or more mounting features is sized and shaped to engage with a corresponding one of the one or more through-holes mechanically coupling the hook to the substrate; and
each hook comprises a contour configured to engage with a corresponding structural post coupled to and extending substantially perpendicularly from a structural member of the chassis, with the structural post supporting the hook, the contour lying generally in a plane perpendicular to a substantially planar surface of the substrate to which the hook is mounted.
7. The method of claim 6 , further comprising plating at least one of the one or more through-holes with an electrically-conductive material.
8. The method of claim 6 , further comprising mechanically coupling each of the one or more mounting features to one of the one or more through-holes with solder.
9. The method of claim 6 , wherein the contour is sized and shaped so as to align the circuit board in a desired position with respect to the chassis.
10. The method of claim 6 , further comprising:
designing at least one of:
the one or more hooks; and
the one or more through-holes;
to have a minimal impact to the substrate in order to enable maximum board and signal routing density for the circuit board.
11. An information handling system comprising:
a chassis having one or more structural posts coupled to and extending substantially perpendicularly from a structural member of the chassis; and
a circuit board mechanically coupled to the chassis, the circuit board comprising:
a substrate having formed therein one or more through-holes; and
one or more hooks, each hook configured to mechanically couple the circuit board to the chassis, each of the one or more hooks comprising one or more mounting features and a contour configured to engage with a corresponding one of the one or more structural posts with the structural post supporting the hook, the contour lying generally in a plane perpendicular to a substantially planar surface of the substrate to which the hook is mounted, wherein each of the one or more mounting features is sized and shaped to engage with a corresponding one of the one or more through-holes in order to mechanically couple the hook to the substrate.
12. The information handling system of claim 11 , wherein at least one of the one or more through-holes is plated with an electrically-conductive material.
13. The information handling system of claim 11 , wherein each of the one or more mounting features is mechanically coupled to one of the one or more through-holes with solder.
14. The information handling system of claim 11 , wherein the contour is sized and shaped so as to align the circuit board in a desired position with respect to the chassis.
15. The information handling system of claim 11 , further comprising one or more chassis grounding tabs mechanically and electrically coupled to the chassis, each chassis grounding tab configured to maintain contact with a corresponding hook of the one or more hooks when the corresponding hook is engaged with its corresponding structural post, in order to electrically couple the corresponding hook to the chassis.
16. The information handling system of claim 15 , wherein at least one of the one or more chassis grounding tabs includes a spring force to bias the chassis grounding tab to maintain contact with its corresponding hook when the corresponding hook is engaged with its corresponding structural post.
17. The information handling system of claim 16 , wherein the at least one of the one or more chassis grounding tabs comprises a lead-in feature shaped to cause a portion of the chassis grounding tab to oppose the spring force of the chassis grounding tab and cause the portion to deflect in a direction away from the chassis to allow the corresponding hook to engage with its corresponding structural post.
18. The information handling system of claim 15 , wherein the at least one of the one or more chassis grounding tabs comprises an emboss formed thereon configured to maintain contact with a corresponding hook of the one or more hooks when the corresponding hook is engaged with its corresponding structural post, in order to electrically couple the corresponding hook to the chassis.
19. The information handling system of claim 15 , wherein:
the chassis further comprises one or more alignment features; and
at least one of the one or more chassis grounding tabs comprises one or more alignment openings each sized and shaped to interface with a corresponding alignment feature of the one or more alignment features in order to provide desired alignment of the chassis grounding tab relative to the chassis.
20. The information handling system of claim 11 , wherein the contour comprises a U-shaped feature having a closed end and an open end and wherein the one or more hooks each comprise at least one lead-in feature having a sloping feature on the edge of the contour wherein a point on the sloping feature proximal to the closed end of the U-shaped feature is closer to the substrate than a point on the sloping feature proximal to the open end of the U-shaped feature.
21. The circuit board of claim 1 , wherein the contour comprises a U-shaped feature having a closed end and an open end and wherein the one or more hooks each comprise at least one lead-in feature having a sloping feature on the edge of the contour wherein a point on the sloping feature proximal to the closed end of the U-shaped feature is closer to the substrate than a point on the sloping feature proximal to the open end of the U-shaped feature.
22. The method of claim 6 , wherein the contour comprises a U-shaped feature having a closed end and an open end and wherein the one or more hooks each comprise at least one lead-in feature having a sloping feature on the edge of the contour wherein a point on the sloping feature proximal to the closed end of the U-shaped feature is closer to the substrate than a point on the sloping feature proximal to the open end of the U-shaped feature.