SOUND ABSORBING BOARD

• US 20200131724A1
• Filed: 09/17/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Hung-Ming Hsu
• Original Assignee: Hung-Ming Hsu
• Inventors: HSU, Hung-Ming
• Granted Patent: US 11,339,545 B2
• Time in Patent Office: Days
• CPC Class Codes: E01F 8/0017 Plate-like elements E01F8/0035 takes precedence
• CPC Class Codes: E01F 8/0023 Details, e.g. foundations solar cells specially adapted to be used in motorway sound barriers H02S20/21
• CPC Class Codes: E01F 8/0052 Grate-style, e.g. as wall facing
• CPC Class Codes: E01F 8/0064 Perforated plate or mesh, e.g. as wall facing

Abstract

The sound absorbing board includes a body and multiple sound absorbing elements. The body has a first side surface and a second side surface. The multiple sound absorbing elements are formed on the body at spaced intervals, and each one of the multiple sound absorbing elements has a protrusion, a groove, and two sound absorbing openings. The protrusion is formed on the first side surface of the body. The groove is formed on the second side surface of the body and has multiple concave portions and at least one convex portion. The multiple concave portions are formed on a bottom surface of the groove. The at least one convex portion is formed on the bottom surface of the groove, and is formed between two adjacent ones of the multiple concave portions. The two sound absorbing openings are formed on the two opposite side surfaces of the protrusion, respectively.

Claims

1. A sound absorbing board comprising:

a body having

a first side surface; and

a second side surface opposite the first side surface; and

multiple sound absorbing elements formed on the body at spaced intervals, and each one of the multiple sound absorbing elements having

a protrusion formed on the first side surface of the body and extending along a longitudinal direction of the sound absorbing element;

a groove formed on the second side surface of the body, located at a position corresponding to where the protrusion is located, and having

multiple concave portions formed on a bottom surface of the groove and extending toward two opposite side surfaces of the protrusion along the longitudinal direction; and

at least one convex portion formed on the bottom surface of the groove, extending toward the two opposite side surfaces of the protrusion along the longitudinal direction, and formed between two adjacent ones of the multiple concave portions; and

two sound absorbing openings formed on the two opposite side surfaces of the protrusion along the longitudinal direction respectively and both communicating with the groove.

2. The sound absorbing board as claimed in claim 1, wherein a surface of each one of the multiple concave portions of the groove of a respective one of the multiple sound absorbing elements and a surface of the at least one convex portion of the corresponding groove form a continuously curved surface together.

3. The sound absorbing board as claimed in claim 1, wherein a tip of each one of the multiple concave portions of the groove of a respective one of the multiple sound absorbing elements and a tip of the at least one convex portion of the corresponding groove is between 0.05 and 0.15 millimeters, end points included.

4. The sound absorbing board as claimed in claim 1, wherein a distance between the bottom surface of the groove of each one of the multiple sound absorbing elements and the second side surface of the body is longer than a distance between the second side surface of the body and the first side surface of the body.

5. The sound absorbing board as claimed in claim 2, wherein a distance between the bottom surface of the groove of each one of the multiple sound absorbing elements and the second side surface of the body is longer than a distance between the second side surface of the body and the first side surface of the body.

6. The sound absorbing board as claimed in claim 3, wherein a distance between the bottom surface of the groove of each one of the multiple sound absorbing elements and the second side surface of the body is longer than a distance between the second side surface of the body and the first side surface of the body.

7. The sound absorbing board as claimed in claim 1, wherein in each sound absorbing element, the bottom surface of the groove corresponds in shape to a top surface of the protrusion.

8. The sound absorbing board as claimed in claim 2, wherein in each sound absorbing element, the bottom surface of the groove corresponds in shape to a top surface of the protrusion.

9. The sound absorbing board as claimed in claim 3, wherein in each sound absorbing element, the bottom surface of the groove corresponds in shape to a top surface of the protrusion.

10. The sound absorbing board as claimed in claim 1, wherein a width of each one of the two sound absorbing openings is between 0.05 and 0.15 millimeters, end points included.

11. The sound absorbing board as claimed in claim 2, wherein a width of each one of the two sound absorbing openings is between 0.05 and 0.15 millimeters, end points included.

12. The sound absorbing board as claimed in claim 3, wherein a width of each one of the two sound absorbing openings is between 0.05 and 0.15 millimeters, end points included.

13. The sound absorbing board as claimed in claim 1, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contour being rectangular;

a length; and

a width shorter than the length and being between 4 and 6 millimeters, end points included.

14. The sound absorbing board as claimed in claim 2, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contour being rectangular;

a length; and

a width shorter than the length, and being between 4 and 6 millimeters, end points included.

15. The sound absorbing board as claimed in claim 3, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contour being rectangular;

a length; and

a width shorter than the length, and being between 4 and 6 millimeters, end points included.

16. The sound absorbing board as claimed in claim 1, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contourbeing rectangular;

a length being between 5 and 7 millimeters, end points included; and

a width shorter than the length.

17. The sound absorbing board as claimed in claim 2, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contour being rectangular;

a length being between 5 and 7 millimeters, end points included; and

a width shorter than the length.

18. The sound absorbing board as claimed in claim 3, wherein an opening is formed through the body, is located below the bottom surface of the groove, and has

a contourbeing rectangular;

a length being between 5 and 7 millimeters, end points included; and

a width shorter than the length.

19. The sound absorbing board as claimed in claim 1, wherein a distance between the bottom surface of the groove and the second side surface of the body is between 1 and 1.3 millimeters, end points included.

20. The sound absorbing board as claimed in claim 2, wherein a distance between the bottom surface of the groove and the second side surface of the body is between 1 and 1.3 millimeters, end points included.