Air flow dissipation opening of a haptic actuator
An apparatus may include a substrate in a capacitance module, a first cavity in the substrate, a first housing in the cavity, a piezoelectric haptic actuator in the housing, and a dissipation opening defined in the housing that increases air flow from the first cavity to the outside of the apparatus.
1 . An apparatus, comprising:
a substrate;
a first cavity defined in a material of the substrate;
a haptic actuator within the first cavity; and
a dissipation opening defined in the material of the substrate that increases air flow between the haptic actuator in the first cavity and outside of the substrate.
2 . The apparatus of claim 1 , wherein the apparatus is a capacitance module.
3 . The apparatus of claim 2 , wherein the substrate is comprised within a layer of the capacitance module.
4 . The apparatus of claim 1 , wherein the substrate is attached to a rigid structure of a capacitance module.
5 . The apparatus of claim 1 , wherein the haptic actuator is configured to generate a haptic vibration such that the haptic vibration vibrates throughout the material of the substrate.
6 . The apparatus of claim 5 , wherein the air flowing through the dissipation opening has an effect of reducing pressure in the substrate.
7 . The apparatus of claim 6 , wherein the reducing pressure in the substrate has an effect of increasing an amplitude of the haptic vibration.
8 . The apparatus of claim 1 , wherein the dissipation opening connects the first cavity to an outside surface of the substrate.
9 . The apparatus of claim 8 , wherein the dissipation opening is an open channel in an edge of the substrate.
10 . The apparatus of claim 1 , wherein the dissipation opening comprises a through passage in a thickness of the substrate.
11 . The apparatus of claim 1 , further comprising a second cavity defined in the material of the substrate, wherein the dissipation opening connects the first cavity to the second cavity.
12 . An apparatus, comprising:
a substrate in a capacitance module;
a first cavity in the substrate;
a first housing in the first cavity;
a haptic actuator in the first housing; and
a dissipation opening defined in the first housing that increases air flow from the haptic actuator in the first cavity to the outside of the apparatus.
13 . The apparatus of claim 12 , wherein the increasing air flow has an effect of increasing an amplitude of a vibration from the haptic actuator.
14 . The apparatus of claim 12 , further comprising a second cavity in the substrate, wherein the dissipation opening connects the first cavity to the second cavity.
15 . The apparatus of claim 12 , wherein the dissipation opening connects the first cavity to another substrate in the capacitance module.
16 . The apparatus of claim 12 , wherein the substrate is a component layer in the capacitance module.
17 . The apparatus of claim 12 , wherein the substrate is a shield layer in the capacitance module.
18 . An apparatus, comprising:
a substrate;
a cavity defined in a material of the substrate;
a haptic actuator within the cavity; and
a dissipation opening defined in the material of the substrate that increases air flow from the haptic actuator in the cavity and outside of the substrate.
19 . The apparatus of claim 18 , wherein the haptic actuator is a piezoelectric actuator.