Loudspeaker and method of manufacturing bulkhead portion of loudspeaker

Abstract

The present invention provides an improved loudspeaker enclosure comprising two opposing end sections (110, 300) arranged at a distance from each other and enclosing sections (120, 130, 140) which connect the end sections (110, 300) over said distance, wherein the inner volume of the enclosure is defined by said sections (110, 120, 130, 140, 300). The enclosure (1) also has a reflex port (160) which comprises a reflex opening (162) which is provided to the enclosure (1) and adapted to exhaust internal pressure from the inner volume to outside the enclosure (1). The reflex port (160) further comprises an inner reflex port former (150) which connects the inner volume of the enclosure (1) to the reflex opening (162) for forming the reflex port (160). The reflex port former (150) is formed by molding as an integral inner wall section which extends inwards from the inner surface of either end section (110, 300). On the other hand the reflex port former (150) extends adjacent to an enclosing section (120) which at least partially surrounds the reflex port former (150) such that the reflex port (160) is formed to a space between the reflex port former (150) and the adjacent enclosing section (120). The reflex port former extends over a portion of the axial dimension of the loudspeaker enclosure and surrounds the inner portion of a driver. The reflex port is terminated in axial direction by a terminating plate provided to inside the enclosure such that the reflex port is formed to a space defined by a reflex port former, an enclosing side section and the terminating plate. The terminating plate secures the driver to the enclosure.

Description

technical field [0001] This invention relates to loudspeakers. In particular, the invention relates to injection molded loudspeaker enclosures. More particularly, the invention relates to a loudspeaker enclosure and a method for its manufacture according to the preambles of claims 1 and 21 . Background technique [0002] The loudspeaker enclosure is typically somewhat like a cylindrical chamber with an opening for receiving the driver. Most commercial loudspeaker enclosures fall into two main categories: bonded construction and molded construction. The engagement structure is typically assembled from laminar wall sections forming a cylindrical loudspeaker enclosure. The front panel forms the mounting part of the loudspeaker, to which the driver is attached. The faceplates of the loudspeakers that join the structure are typically made of natural wood or a wooden material such as MDF comprising wood fibers bonded to a wax and resin adhesive. Other materials are also known...

AI Technical Summary

Problems solved by technology

In known constructions, the reflection port is open towards the front of the loudspeaker, which is especially unfavorable for the reasons stated above

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