Low cost ring device structures
Methods, systems, and devices for forming a wearable ring device are described. A welding process may use ultrasonic welding to attach an outer lateral surface cover to the inner lateral surface cover, which may form an arcuate frame for the wearable ring device. The welding process may involve ultrasonic welding, which may melt one or more welding features (e.g., welding ribs) to attach the outer lateral surface cover to the inner lateral surface cover. In some examples, the welding features may be located on the outer lateral surface cover, the inner lateral surface cover, or both. To reduce negative effects on fragile components, such as a PCB of the wearable ring device, the fragile components may be disposed in a location away from the welding features. Further, in some cases, a material may be used to cover and shield the fragile components from ultrasonic waves during the welding procedure.
1 . A wearable ring device, comprising:
an arcuate frame configured to be worn on a finger of a user, the arcuate frame comprising:
an inner cover comprising an inner surface of the wearable ring device that is configured to contact the finger of the user when the wearable ring device is worn by the user; and
an outer cover comprising an outer surface of the wearable ring device, wherein a first welding rib extends from a first portion of the outer cover of the arcuate frame, wherein a second welding rib extends from a second portion of the outer cover of the arcuate frame, wherein the first welding rib and the second welding rib extend from the outer cover towards one another within the wearable ring device, and wherein the first welding rib and the second welding rib are welded to the inner cover to form the arcuate frame; and
an arcuate printed circuit board coupled with the outer cover and disposed within the arcuate frame between the outer cover and the inner cover.
2 . The wearable ring device of claim 1 , wherein the arcuate printed circuit board is disposed in a first section within the arcuate frame, and wherein the first welding rib and the second welding rib are located in a second section different from the first section, wherein the first section is closer than the second section to the outer surface of the wearable ring device in a dimension extending from the inner surface of the wearable ring device toward the outer surface of the wearable ring device.
3 . The wearable ring device of claim 1 , wherein the inner cover comprises a plurality of transparent lenses and the arcuate printed circuit board is configured to perform measurements of physiological data of the user based at least in part on one or more sensors via the plurality of transparent lenses.
4 . The wearable ring device of claim 1 , wherein the first welding rib and the second welding rib are at least partially deformed via an ultrasonic welding procedure to secure the inner cover with the outer cover.
5 . The wearable ring device of claim 1 , wherein the arcuate frame comprises a shielding component between the outer cover and the inner cover, and wherein the arcuate printed circuit board is disposed within the shielding component.
6 . The wearable ring device of claim 5 , wherein the shielding component is positioned between the arcuate printed circuit board and the first welding rib and the second welding rib.
7 . The wearable ring device of claim 1 , wherein:
a third welding feature extends around a first portion of the inner cover; and
a fourth welding feature extends around a second portion of the inner cover, and wherein the third welding feature and the fourth welding feature are welded to the outer cover to form the arcuate frame.
8 . The wearable ring device of claim 7 , wherein the third welding feature is welded to the first welding rib, and wherein the fourth welding feature is welded to the second welding rib.
9 . The wearable ring device of claim 1 , wherein the outer cover further comprises a first side wall and a second side wall of the wearable ring device, wherein the first side wall comprises a first interior surface facing an interior of the wearable ring device, and wherein the second side wall comprises a second interior surface facing the interior of the wearable ring device, wherein the first welding rib extends from the first interior surface of the first side wall, and wherein the second welding rib extends from the second interior surface of the second side wall.
10 . The wearable ring device of claim 9 ,
wherein the first interior surface of the first side wall and the second interior surface of the second side wall are substantially parallel to one another,
wherein the first welding rib extends from the first interior surface of the first side wall in a first direction that is substantially parallel to the outer surface of the wearable ring device, the inner surface of the wearable ring device, or both, and
wherein the second welding rib extends from the second interior surface of the second side wall in a second direction that is substantially parallel to the outer surface of the wearable ring device, the inner surface of the wearable ring device, or both.
11 . A wearable ring device, comprising:
an arcuate frame configured to be worn on a finger of a user, the arcuate frame comprising:
an inner cover comprising an inner surface of the wearable ring device that is configured to contact the finger of the user when the wearable ring device is worn by the user; and
an outer cover comprising an outer surface of the wearable ring device, wherein a first welding rib extends from a first portion of the inner cover of the arcuate frame, wherein a second welding rib extends from a second portion of the inner cover of the arcuate frame, wherein the first welding rib and the second welding rib extend from the inner cover away from one another within the wearable ring device, and wherein the first welding rib and the second welding rib are welded to the outer cover to form the arcuate frame; and
an arcuate printed circuit board coupled with the outer cover and disposed within the arcuate frame between the outer cover and the inner cover.
12 . The wearable ring device of claim 11 , wherein the arcuate printed circuit board is disposed in a first section within the arcuate frame, and wherein the first welding rib and the second welding rib are located in a second section different from the first section, wherein the first section is closer than the second section to the outer surface of the wearable ring device in a dimension extending from the inner surface of the wearable ring device toward the outer surface of the wearable ring device.
13 . The wearable ring device of claim 11 , wherein the inner cover comprises a plurality of transparent lenses, and wherein the arcuate printed circuit board is configured to perform measurements of physiological data of the user based at least in part on one or more sensors via the plurality of transparent lenses.
14 . The wearable ring device of claim 11 , wherein the first welding rib and the second welding rib are at least partially deformed via an ultrasonic welding procedure to secure the inner cover with the outer cover.
15 . The wearable ring device of claim 11 , wherein the arcuate frame comprises a shielding component between the outer cover and the inner cover, and wherein the arcuate printed circuit board is disposed within the shielding component.
16 . The wearable ring device of claim 15 , wherein the shielding component is positioned between the arcuate printed circuit board and the first welding rib and the second welding rib.
17 . The wearable ring device of claim 11 , wherein the outer cover further comprises a first side wall and a second side wall of the wearable ring device, wherein the first side wall comprises a first interior surface facing an interior of the wearable ring device, and wherein the second side wall comprises a second interior surface facing the interior of the wearable ring device, wherein the first welding rib is coupled with the first interior surface of the first side wall, and wherein the second welding rib is coupled with the second interior surface of the second side wall.
18 . The wearable ring device of claim 17 ,
wherein the first interior surface of the first side wall and the second interior surface of the second side wall are substantially parallel to one another,
wherein the first welding rib extends from the inner cover in a first direction that is substantially perpendicular to the first interior surface of the first side wall, and
wherein the second welding rib extends from the inner cover in a second direction that is substantially perpendicular to the second interior surface of the second side wall.