DE202008017790U1 - Speaker assembly - Google Patents

Abstract

Loudspeaker arrangement (1) having a plurality of loudspeakers (2, 3, 4) optimized for different frequencies,
wherein a high-frequency high-frequency loudspeaker (3) for sound guidance has a horn (5) which adjoins the sound outlet opening (32) and which offers a sound guide surface (51) on its inside (52),
wherein at least one lower frequencies associated middle-low-tone loudspeaker (4) is provided,
characterized,
in that the horn (5) is formed by a voluminous and solid body (6) facing away from the sound conducting surface (51), the oscillating membrane (41) of the at least one middle low tone loudspeaker (4) being instantaneous is arranged behind the voluminous body (6) of the horn (5), wherein in the voluminous body (6) of the horn (5) to the vibration plane (42) of the membrane (41) are formed substantially vertically arranged channels (61) which can penetrate the sound waves (43) of the medium-low-tone loudspeaker and exit through the openings of the channels in the sound-conducting surface (51) of the horn (5).

Description

The The invention relates to a loudspeaker arrangement with several for different frequencies optimized speakers, with a high Frequencies associated with high-frequency speakers for sound conduction a sound exit surface subsequent thereto has widening horn, which is a sound-conducting surface offers on its inside and at least one lower frequencies assigned center-low-tone speaker is provided.

A compact arrangement of optimized for different frequencies Single speakers in a system for playback of the whole Sound spectrum is often hampered by the fact that usually tweeters a horn is arranged at the sound exit opening, that is intended to conduct the sound at high frequencies.

From the JP 11098591 A is shown using a different approach using arrangement with axially arranged tweeter and woofer. Wherein a conventional horn is mounted on the tweeter and the periphery of the tweeter housing is extended in a plane outwardly by an Anformung, which is pierced by elongated openings adjoining the horn formed by the surface of the opening part , The sound waves of the woofer should then pass through these elongated openings next to the horn.

task The invention is to further develop a speaker assembly and in particular more compact designs with multiple sound sources to enable.

These Task is by a speaker assembly according to the features of claim 1.

According to the invention provided that the horn through one in his the sound-conducting surface opposite side is designed voluminous body, the vibrating diaphragm of the at least one mid-low-tone loudspeaker immediately behind the voluminous and massive body of the horn, wherein in the voluminous body of the Horns to the vibration plane of the membrane substantially perpendicular arranged channels are formed, through which the sound waves of the mid-low-tone loudspeaker.

hereby is a particularly effective way of optimized sound radiation and a smallest possible compact design possible. The radiation behavior is now more evenly over the frequency than in conventional arrangements with constructive by the previously impenetrable Horn conditional distanced Sound sources.

preferably, the sound guiding surface of the horn is curved.

From Advantage is the at least one middle-low-tone speakers directly next to the sound exit surface of the tweeter speaker arranged, so at a small distance.

in the Case that several mid-low sound speakers are provided, is advantageously provided that their membrane centers from each other less than lambda (λ) / 2 of the highest to be radiated Frequencies are spaced from each other.

preferably, is the material of the body reverberant.

To a particularly advantageous embodiment of the invention is provided the channels in the body form a bandpass, where the number of channels and their respective cross-sectional area and length are chosen so that the resonance frequency the bandpass not significantly below the crossover frequency between Tweeter and mid-low-tone speakers are located.

Further advantageous embodiments will become apparent from the other dependent claims or their possible sub-combinations.

following the invention will be further explained with reference to the drawings. In detail, the schematic representation in:

1 a schematic representation of a loudspeaker arrangement according to the invention with two middle-low-tone speakers and a high-frequency speaker with associated horn,

2 an enlarged view of a portion of the arrangement 1 .

3 a schematic sectional view of the horn to illustrate the channels in the voluminous body of the same, and

4 a schematic view of the horn with the channels from above.

The in the figures, the same reference numerals designate the same or the same acting elements.

In 1 is an exemplary speaker arrangement 1 with optimized for different frequencies speakers 2 shown.

Associated with a high frequency Tweeter 3 is to the sound guide a at the sound outlet opening 32 subsequent widening horn 5 connected, which is a sound-conducting surface 51 on its inside 52 forms.

The horn acts for high frequencies in a conventional manner, the sound waves conductive. The sound guide surface 51 of the horn 5 is progressively wide curved. The horn itself is massive and voluminous designed and the material used by the body 6 is reverberant.

Immediately next to the sound exit area 32 the tweeter speaker 3 are two lower frequencies associated mid-low-tone speakers 4 arranged. These are with their vibrating membrane 41 immediately behind the luminous body 6 of the horn 5 that the sound-conducting surface 51 forms on the outside 53 arranged. For the passage of deep sound waves through the mid-low-tone speakers 4 are generated in the voluminous body 6 of the horn 5 to the vibration level 42 the membrane 41 essentially vertically arranged channels 61 formed, through which the sound waves 43 of the mid-low-tone loudspeaker.

The membrane centers 44 the mid-low-tone speaker 4 are mutually less in the example shown as lambda (λ) / 2 of the highest frequencies to be radiated away from each other.

2 shows an enlarged view of a part of 1 ,

In 3 and 4 is a schematic sectional view and a top view of the horn 5 to clarify the arrangement of the channels 61 in the voluminous body 6 shown.

The channels 61 in the massive and voluminous body 6 form a band pass for the sound waves, the number of channels 61 and their respective cross-sectional area and length are chosen so that the resonant frequency of the bandpass is not significantly below the crossover frequency between high-frequency speakers 3 and mid-low-tone speakers 4 lies.

1

Speaker assembly

2

speaker

3

Tweeter

31

sound waves the tweeter speaker

32

Sound outlet

4

Medium-low Sound Speaker

41

swinging membrane

42

vibration level the membrane

43

sound waves the mid-low-tone speaker

44

Membrane Center

5

horn

51

Sound baffle

52

inside

53

outside

6

voluminous body

61

channels

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - JP 11098591 A [0003]

Claims (6)

Speaker arrangement ( 1 ) with several loudspeakers optimized for different frequencies ( 2 ; 3 . 4 ), where a high-frequency high-frequency loudspeaker ( 3 ) for conducting a sound whose sound outlet ( 32 ) subsequent widening horn ( 5 ) having a sound guide surface ( 51 ) on its inside ( 52 ), wherein at least a lower frequencies associated middle-low-tone speakers ( 4 ), characterized in that the horn ( 5 ) by one in its the sound guide surface ( 51 ) side facing voluminous and massive body ( 6 ), wherein the vibrating membrane ( 41 ) of the at least one mid-low-tone loudspeaker ( 4 ) immediately behind the voluminous body ( 6 ) of the horn ( 5 ), wherein in the voluminous body ( 6 ) of the horn ( 5 ) to the vibration level ( 42 ) of the membrane ( 41 ) substantially vertically arranged channels ( 61 ) are formed, through which the sound waves ( 43 ) of the medium-low-tone loudspeaker and through the openings of the channels in the sound-conducting surface ( 51 ) of the horn ( 5 ) exit. Loudspeaker arrangement according to claim 1, characterized in that the sound conducting surface ( 51 ) of the horn ( 5 ) is curved. Loudspeaker arrangement according to claim 1 or 2, characterized in that the at least one middle-low-tone loudspeaker ( 4 ) directly next to the sound outlet ( 32 ) of the high-frequency loudspeaker ( 3 ) is arranged. Loudspeaker arrangement according to one of Claims 1 to 3, characterized in that a plurality of medium-low-tone loudspeakers ( 4 ) whose membrane centers ( 44 ) are spaced from each other less than lambda (λ) / 2 of the highest frequencies to be radiated. Loudspeaker arrangement according to one of claims 1 to 4, characterized in that the material of the body ( 6 ) is hard-hitting. Loudspeaker arrangement according to one of Claims 1 to 5, characterized in that the channels ( 61 ) in the body ( 6 ) form a bandpass, the number of channels ( 61 ) and their respective cross-sectional area and length are chosen such that the resonance frequency of the bandpass is not substantially below the crossover frequency between high-frequency loudspeakers ( 3 ) and mid-low-tone speakers ( 4 ) lies.