Sound-generating apparatus and vehicle including the same
A sound-generating apparatus and a vehicle including the same are provided. A sound-generating apparatus includes: a plurality of first portions at each of first to third regions, and a plurality of second portions between the plurality of first portions, at each of the first to third regions, wherein two or more second portions, at any one region, among the first to third regions, have a cross-sectional shape that differs from a cross-sectional shape of a second portion disposed at each of the other regions, among the first to third regions.
1. A sound-generating apparatus, comprising:
a plurality of first portions at each of first to third regions; and
a plurality of second portions between the plurality of first portions, at each of the first to third regions,
wherein two or more second portions, at any one region, among the first to third regions, have a cross-sectional shape that differs from a cross-sectional shape of a second portion disposed at each of the other regions, among the first to third regions.
2. The sound-generating apparatus of claim 1 , wherein any one region, among the first to third regions, is a bending region that is bendable from another of the other regions, among the first to third regions.
3. The sound-generating apparatus of claim 2 , wherein:
the plurality of second portions have:
a first width; and
a second width that is half of a height of the second portion; and
in each of the two or more second portions at the bendable region, the first width differs from the second width.
4. The sound-generating apparatus of claim 2 , wherein widths of the second portions at the bendable region differ from each other.
5. The sound-generating apparatus of claim 2 , wherein a width of the first portion at the bendable region differs from a width of the second portion at the bendable region.
6. The sound-generating apparatus of claim 1 , wherein the third region, which is between the first region and the second region, is a bending region that is bendable from each of the first region and the second region.
7. The sound-generating apparatus of claim 1 , wherein:
each of the plurality of first portions and the plurality of second portions comprises:
a first surface;
a second surface opposite to the first surface; and
a side surface between the first surface and the second surface;
the any one region of the first to third regions comprises a bendable region;
a side surface of two or more second portions at the bendable region comprises a concave portion; and
another second portion, at an another region other than the bendable region of the first to third regions, comprises a cross-sectional surface having a tetragonal shape.
8. The sound-generating apparatus of claim 7 , wherein at least one first portion between the two or more second portions at the bendable region comprises a protrusion portion protruding toward a concave portion of an adjacent second portion.
9. The sound-generating apparatus of claim 7 , wherein each of the two or more second portions at the bendable region comprises a cross-sectional surface having a hexagonal shape, the hexagonal shape having a concave side surface.
10. The sound-generating apparatus of claim 7 , wherein, in each of the two or more second portions at the bendable region:
the first surface and the second surface have the same width; and
a shortest distance between a first side surface and a second side surface, which are parallel between the first surface and the second surface, is smaller than a width of the first surface.
11. The sound-generating apparatus of claim 10 , wherein, in one second portion of the two or more second portions at the bendable region, the first side surface and the second side surface contact each other.
12. The sound-generating apparatus of claim 7 , wherein:
the bendable region comprises three second portions; and
a center second portion at a center of the three second portions, and side second portions at both sides of the center portion, have different cross-sectional shapes.
13. The sound-generating apparatus of claim 1 , wherein:
the plurality of first portions comprises an inorganic material; and
the plurality of second portions comprises an organic material.
14. The sound-generating apparatus of claim 1 , wherein widths of the first to third regions differ from each other.
15. The sound-generating apparatus of claim 1 , wherein any one region, among the first to third regions, has a width that is wider than a width of each of the other regions.
16. The sound-generating apparatus of claim 1 , wherein a modulus of a second portion at any one region, among the first to third regions, is higher than a modulus of a second portion at another region, among the first to third regions.
17. A vehicle, comprising:
a vehicle interior material comprising a vibration region comprising a curved portion; and
a vibration apparatus at the vibration region, the vibration apparatus comprising the sound-generating apparatus of claim 1 .
18. The vehicle of claim 17 , wherein the any one region, among the first to third regions of the sound-generating apparatus, is disposed at the curved portion of the vibration region.
19. The vehicle of claim 17 , wherein:
the vibration region further comprises a peripheral portion connected to the curved portion, the vibration region having a non-curved shape;
the any one region, among the first to third regions of the sound-generating apparatus, is at the curved portion; and
another region, among the first to third regions of the sound-generating apparatus, is at the peripheral portion of the vibration region.
20. The vehicle of claim 17 , wherein the vehicle interior material comprises a material comprising one or more of: a plastic, a fiber, a leather, a wood, a cloth, a metal, and a glass.
21. The vehicle of claim 17 , wherein: the vehicle interior material comprises one or more of: a dashboard, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, and a floor interior material; and the vibration apparatus is at the vibration region of one or more of: the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, and the floor interior material.
22. The vehicle of claim 17 , wherein:
the vehicle interior material comprises one or more of: a rear view mirror, an overhead console, a rear package interior material, a glove box, and a sun visor; and
the vibration apparatus is at the vibration region of one or more of: the rear view mirror, the overhead console, the rear package interior material, the glove box, and the sun visor.