Flat diaphragm loudspeaker
The invention relates to a loudspeaker system in which the diaphragm of the speaker has a defined material thickness particularly in the edge region thereof and comprises a suspension which is axially symmetrical about the mechanical rest position of said diaphragm and is formed by one, preferably two identical mirrored components, characterized in that the sound emission towards the rear is performed to at least 50 percent by the inner space of a magnetic system. The invention further relates to the use of the loudspeaker system as loudspeaker boxes or in radios, television screens, radio receivers, hand-held radio devices, measurement receivers, mobile telephones and headphones or the like.
1. Loudspeaker system, comprising at least one diaphragm, a magnet system and a voice coil,
wherein
the diaphragm is flat along an axis of a mechanical rest position of the diaphragm and possesses a mounting suspension comprising two identical mirrored components along said axis and
the magnet system is an external magnet system in form of a ring having an interior, wherein the magnet system is configured so that a rear main emission occurs at least 50% through the interior of the magnet system,
the diaphragm, having a outer diameter and a center, is thicker at the outer diameter than in the center and has, at the outer diameter, a thickness of more than 10% of the diaphragm diameter, and
the diameter of the voice coil in relation to the diameter of the diaphragm is at least 0.75:1.
2. The loudspeaker system according to claim 1 , wherein the diaphragm is formed as a woofer diaphragm and also comprises a tweeter.
3. The loudspeaker system according to claim 2 , wherein the tweeter located within the magnet system emits the sound through an opening in the diaphragm of the woofer.
4. The loudspeaker system according to claim 1 , wherein at least one area of a loudspeaker bead of the diaphragm is formed by resilient foam.
5. The loudspeaker system according to claim 1 , wherein the magnet system comprises at least one magnet, selected from the group comprising a samarium-cobalt magnet, a cerium-cobalt magnet, an aluminum-nickel-cobalt magnet, a ferrite magnet and a neodymium magnet.
6. The loudspeaker system according to claim 1 , wherein the diaphragm is a sandwich diaphragm.
7. Loudspeaker system, comprising at least one diaphragm, a magnet system and a voice coil,
wherein
the diaphragm possesses a mounting suspension and
the magnet system is an external magnet system in form of a ring having an interior, wherein the magnet system is configured so that a rear main emission occurs at least 50% through the interior of the magnet system,
the diaphragm, having a outer diameter and a center, is thicker at the outer diameter than in the center and has, at the outer diameter, a thickness of more than 10% of the diaphragm diameter, and
the diameter of the voice coil in relation to the diameter of the diaphragm is at least 0.75:1, wherein the diaphragm is a sandwich diaphragm and the core material of the sandwich diaphragm comprises a honeycomb structure made of aramid fibers, paper, Nomex, plastic and/or wherein the outer surface layers comprises fiber materials, metal foils and/or plastic films.
8. The loudspeaker system according to claim 1 , wherein the diaphragm is formed as a woofer diaphragm and also comprises a tweeter and the tweeter inside the magnet system emits the sound through an opening in the diaphragm of the woofer.
9. The loudspeaker system according to claim 2 , wherein the tweeter is a dome tweeter.
10. The loudspeaker system according to claim 3 , wherein the tweeter is a dome tweeter.
11. The loudspeaker system according to claim 8 , wherein the tweeter is a dome tweeter.
12. The loudspeaker system according to claim 7 , wherein the plastic is -polyester and/or polypropylene.
13. The loudspeaker system of claim 7 , wherein the suspension is a one- piece symmetrical flexible suspension.
14. The loudspeaker system of claim 1 , wherein the suspension is a fully symmetrical suspension.