Systems and methods retaining components in an electronic device
A fastener ( 100 ) for retaining a plurality of components ( 334, 348 ) in an electronic device includes a body ( 102 ) with a bottom end and a top end, where the bottom end includes a mechanical interlocking feature ( 104 ) integrally formed with the bottom end and the top end includes a head ( 106 ) integrally formed with the top end. Between the head ( 106 ) and the mechanical interlocking feature ( 104 ), the body includes an integrally formed shoulder ( 108 ). A neck ( 110 ) is positioned between the shoulder ( 108 ) and the head ( 106 ) with a neck outer diameter that is less than a head outer diameter and a shoulder outer diameter.
1 . A fastener for retaining a plurality of components within an electronic device, the fastener comprising:
a body having a bottom end and a top end, a longitudinal direction extending between the bottom end and the top end;
a mechanical interlocking feature integrally formed with the bottom end;
a head integrally formed with the top end, the head including a groove or recess being configured to receive a driver and being configured to receive torque from the driver to drive the fastener into a board, housing, or other portion of the electronic device;
a shoulder integrally formed with the body and positioned between the mechanical interlocking feature and the head; and
a neck positioned between the shoulder and the head, wherein a neck outer diameter is less than a head outer diameter and a shoulder outer diameter,
wherein a total height of the body is less than 3 millimeters, and
wherein the shoulder outer diameter is greater than the total height of the body.
2 . The fastener of claim 1 , wherein a distance in the longitudinal direction from a bottom surface of the shoulder to a top surface of the head is less than 1.3 millimeters.
3 . The fastener of claim 1 , wherein a neck height is less than 0.25 millimeters.
4 . The fastener of claim 1 , wherein the shoulder outer diameter is greater than the head outer diameter.
5 . The fastener of claim 1 , wherein a shoulder height in the longitudinal direction is greater than a neck height.
6 . The fastener of claim 1 , wherein the neck outer diameter is greater than a bottom end outer diameter.
7 . A system for retaining a component in an electronic device, the system comprising:
a fastener including:
a body having a bottom end and a top end, a longitudinal direction extending between the bottom end and the top end,
a mechanical interlocking feature integrally formed with the bottom end,
a head integrally formed with the top end, the head including a groove or recess being configured to receive a driver and being configured to receive torque from the driver to drive the fastener into a board, housing, or other portion of the electronic device,
a shoulder integrally formed with the body and positioned between the mechanical interlocking feature and the head, and
a neck positioned between the shoulder and the head, wherein a neck outer diameter is less than a head outer diameter and a shoulder outer diameter,
wherein a total height of the body is less than 3 millimeters, and
wherein the shoulder outer diameter is greater than the total height of the body; and
a bracket including:
an aperture therethrough, the aperture having a width greater than the head outer diameter of the fastener, and
at least one retention mechanism in the aperture, the retention mechanism configured to engage with the neck of the fastener.
8 . The system of claim 7 , the retention mechanism including an elastically deformable clip, wherein the clip defines a clip width less than the head outer diameter.
9 . The system of claim 8 , wherein the clip width is less than the neck outer diameter in an elastically undeformed state.
10 . The system of claim 7 , wherein the bracket is a board-to-board connector.
11 . The system of claim 7 , wherein the retention mechanism allows rotation of the fastener relative to the bracket.
12 . The system of claim 7 , wherein the retention mechanism is integrally formed with the bracket.
13 . A method of manufacturing an electronic device, the method comprising:
positioning a first component relative to a housing;
affixing the first component to the housing using a fastener, the fastener including:
a body having a bottom end and a top end, a longitudinal direction extending between the bottom end and the top end,
a mechanical interlocking feature integrally formed with the bottom end,
a head integrally formed with the top end, the head including a groove or recess being configured to receive a driver and being configured to receive torque from the driver to drive the fastener into a board, housing, or other portion of the electronic device,
a shoulder integrally formed with the body and positioned between the mechanical interlocking feature and the head, and
a neck positioned between the shoulder and the head, wherein a neck outer diameter is less than a head outer diameter and a shoulder outer diameter,
wherein a total height of the body is less than 3 millimeters, and
wherein the shoulder outer diameter is greater than the total height of the body;
positioning a bracket relative to the first component and the fastener; and
applying a force to the bracket toward the fastener to affix the bracket to the fastener.
14 . The fastener of claim 1 , wherein the mechanical interlocking feature includes a threaded surface.
15 . The fastener of claim 1 , wherein the body is an electrically conductive material.
16 . The fastener of claim 1 , wherein the body includes electrically conductive particles.
17 . The fastener of claim 1 , wherein the body and head provide a conductive path therethrough.
18 . The system of claim 7 , wherein the fastener and the bracket provide a conductive path therebetween.
19 . The system of claim 7 , wherein the mechanical interlocking feature includes a first surface configured to engage with a second surface of the bracket.
20 . The fastener of claim 19 , wherein first surface is concave, and the second surface is convex.