IP Library › Granted Patent US 11,218,797
Granted Patent B2
US 11,218,797 · App. 16/830,589 · Granted Jan 4, 2022

Opposing loudspeaker arrangement

Inventors: Joerg Prokisch (Schwarzach, DE); Michael Schuster (Munich, DE); Andreas Pfeffer (Wenzenbach, DE); Manfred Aigner (Deggendorf, DE)
H04R1/2803H04R1/02H04R1/2834H04R31/006H04R2201/02H04R2499/13
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Quick Facts
Patent No.
US 11,218,797
App. No.
16/830,589
Granted
Jan 4, 2022
Kind
B2
Abstract

A loudspeaker arrangement having a first loudspeaker comprising a first sound radiating surface and a first loudspeaker basket, and a second loudspeaker comprising a second sound radiating surface and a second loudspeaker basket. The first loudspeaker and the second loudspeaker are arranged opposite each other in a first direction, a cavity is formed between a front side of the first loudspeaker and a front side of the second loudspeaker, and the first loudspeaker basket is directly coupled to the second loudspeaker basket.

Claims (36)

1. A loudspeaker arrangement, comprising:

a first loudspeaker having a first sound radiating surface and a first loudspeaker basket;

a second loudspeaker having a second sound radiating surface and a second loudspeaker basket;

the first loudspeaker and the second loudspeaker are arranged opposite each other in a first direction;

a cavity formed between a front side of the first loudspeaker and a front side of the second loudspeaker;

the first loudspeaker basket is directly coupled to the second loudspeaker basket;

a third projection and a fourth projection formed by the first loudspeaker basket and the second loudspeaker basket, and arranged opposite each other in a second direction that is perpendicular to the first direction;

a loudspeaker enclosure comprising a first enclosure part arranged to enclose a rear side of the first loudspeaker, and a second enclosure part arranged to enclose a rear side of the second loudspeaker and to be connected to the first enclosure part and

when the first enclosure part and the second enclosure part are arranged to enclose the first and the second loudspeaker, the third projection and the fourth projection each are clamped between the first enclosure part and the second enclosure part.

2. The loudspeaker arrangement of claim 1 , wherein

the first loudspeaker basket has a first projection extending from the first loudspeaker basket in the first direction towards the second loudspeaker;

the second loudspeaker basket has a second projection extending from the second loudspeaker basket in the first direction towards the first loudspeaker; and

the first projection is directly coupled to the second projection, thereby defining the cavity between the front side of the first loudspeaker and the front side of the second loudspeaker.

3. The loudspeaker arrangement of claim 1 , further comprising:

a first elastic cord mounted on the third projection to circumferentially surround the third projection;

a second elastic cord mounted on the fourth projection to circumferentially surround the fourth projection; and

when the first enclosure part and the second enclosure part are arranged to enclose the first and the second loudspeakers, the first elastic cord is arranged between the third projection and the loudspeaker enclosure, and the second elastic cord is arranged between the fourth projection and the loudspeaker enclosure.

4. The loudspeaker arrangement of claim 3 , wherein, when the loudspeaker enclosure is arranged to enclose the first loudspeaker and the second loudspeaker, the first enclosure part and the second enclosure part exert pressure on the first elastic cord and the third projection, and the first enclosure part and the second enclosure part further exert pressure on the second elastic cord and the fourth projection, thereby fixating the first loudspeaker and the second loudspeaker within the enclosure.

5. The loudspeaker arrangement of claim 4 , wherein,

when pressure is exerted on the first elastic cord, the first elastic cord is compressed up to a maximum of 50%; and

when pressure is exerted on the second elastic cord, the second elastic cord is compressed up to a maximum of 50%.

6. The loudspeaker arrangement of claim 3 , further comprising a third elastic cord arranged between the first enclosure part and the second enclosure part.

7. The loudspeaker arrangement of claim 6 , wherein at least one of

the first elastic cord comprises an elastomer, sponge or foam rubber, or a foam material;

the second elastic cord comprises an elastomer, sponge or foam rubber, or a foam material; and

the third elastic cord comprises an elastomer, sponge or foam rubber, or a foam material.

8. The loudspeaker arrangement of claim 1 , wherein the cavity further comprises at least one opening in the second direction towards an environment outside of the cavity.

9. The loudspeaker arrangement of claim 1 , wherein the first loudspeaker and the second loudspeaker are arranged such that the first sound radiating surface and the second sound radiating surface are arranged substantially in parallel to each other.

10. The loudspeaker arrangement of claim 1 , further comprising a plurality of first connection elements and a plurality of second connection elements configured to connect the first loudspeaker basket to the second loudspeaker basket.

11. The loudspeaker arrangement of claim 1 , further comprising:

a plurality of first connection elements;

a plurality of second connection elements configured to connect the first loudspeaker basket to the second loudspeaker basket; and

a plurality of third connection elements that are configured to connect the first enclosure part to the second enclosure part.

12. The loudspeaker arrangement of claim 11 , wherein the plurality of third connection elements is evenly distributed around the loudspeaker enclosure and along a contact area between the first enclosure part and the second enclosure part to equally distribute a resulting holding force along a perimeter of the loudspeaker enclosure.

13. The loudspeaker arrangement of claim 11 , wherein each of the plurality of third connection elements comprises a first hook attached to the first enclosure part, a second hook attached to the second enclosure part and a fixing element.

14. The loudspeaker arrangement of claim 13 , wherein, when the first enclosure part is connected to the second enclosure part, for each of the plurality of third connection elements the respective first hook and second hook overlap in the first direction, and the fixing element is inserted between the first hook and the second hook.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2020
From: PROKISCH, JOERG; SCHUSTER, MICHAEL; PFEFFER, ANDREAS; AIGNER, MANFRED
To: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
Reel/Frame 052233/0108 →
Priority Claims (1)
EP 19169138 · Apr 15, 2019 · regional
Continuity (1)
Related Publication 20200329301A1 · Oct 15, 2020
Cited By (1)
US 12,395,786