Loudspeaker driver and loudspeaker arrangement
A loudspeaker and driver technology, applied in the direction of frequency/direction characteristic devices, sensors, sensor components, etc., can solve the problems of increased cost and complexity, speaker noise, high mechanical stress, etc., to facilitate the installation of radiators and improve sound quality , the effect of improving the vibration performance
Inactive Publication Date: 2012-04-25
TP VISION HLDG
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Problems solved by technology
But such a setup would exert extreme vibratory forces on the individual elements of the housing
For example, the support structure that holds the active loudspeaker must accommodate the combined effect of vibration forces from both the active loudspeaker and the passive cone, resulting in very high mechanical stress
This vibrational stress exerted by two different loudspeakers is likely to lead to discoloration of the sound and to a significantly higher risk of mechanical instability, which may manifest itself, for example, in cabinet noise and chatter
Furthermore, the method of US 7,158,648 requires complex housing structures, resulting in increased cost and complexity
Furthermore, the method results in a complex installation for the active transducers and passive cones
As a result, the systems tend to require complex and costly manufacture and require a large number of manufacturing operations
Method used
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[0051] The following description focuses on an embodiment of the invention applicable to a woofer driver. It should however be realized that the invention is not limited to this application but may be applied to many other loudspeaker drivers and arrangements.
[0052] Unlike conventional systems where passive radiators are mounted directly in the enclosure, the described loudspeaker arrangement uses a single loudspeaker driver incorporating both active and passive radiators. Therefore, instead of installing individual and separate passive radiators, the described method uses a single unit integrated speaker driver with a single combined installation. This provides improved sound quality because the single speaker driver acts more as a single sound source. Furthermore, the enclosure is only exposed to a single source of vibration, allowing a reduction in vibrational stresses, and in particular mechanical stresses due to passive and active radiators moving in opposite directio...
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A loudspeaker arrangement comprises a loudspeaker driver (201) mounted in an enclosure (203). The loudspeaker driver (201) comprises a speaker frame (209) which forms an outer support (221) and an inner support (213). An active radiator (205) is mounted on the inner support (213) and a passive radiator (207) is mounted between and on the inner support (213) and the outer support (221). The loudspeaker driver (201) may be mounted by the outer support (221) being fixed to the enclosure (203). The passive radiator (205) allows a low frequency extension for the loudspeaker driver (201).The integrated design of the active radiator 205 and passive radiator 207 allows the radiators (205, 207) to closely interact and behave as a single unit. The approach may reduce cost, facilitate manufacturing, improve audio quality and / or reduce vibrational stress on the enclosure.
Description
technical field [0001] The present invention relates to a loudspeaker driver and a loudspeaker arrangement, and in particular but not exclusively to a loudspeaker for low frequency sound reproduction. Background technique [0002] It is known to use passive cones or passive loudspeakers in loudspeaker arrangements in addition to one or more active loudspeaker drivers. exist figure 1 An example of a speaker device using an airtight enclosure is shown in . In this example, an active loudspeaker driver 101 is mounted in a housing 103 . In addition, a passive speaker 105 is also installed in the housing 103 . The active speaker driver 101 is fed an electrical signal which causes the diaphragm of the speaker driver 101 to move, thereby radiating sound. In contrast, a passive speaker 105 is not electrically coupled to anything, but merely provides a diaphragm that can move in response to air pressure. Passive loudspeakers 105 are typically used to enhance the low frequency re...
Claims
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IPC IPC(8): H04R1/28H04R7/16
CPCH04R7/16H04R1/2834H04R1/28
Inventor G. 戈康桑F. J. K. 克维克P. 高
Owner TP VISION HLDG