Speaker box and method for manufacturing same

• US 10,015,586 B2
• Filed: 01/11/2017
• Issued: 07/03/2018
• Est. Priority Date: 07/20/2016
• Status: Active Grant

• Current Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Original Assignee: AAC Technologies Pte Limited (AAC Technologies Holdings Inc.)
• Inventors: Shi, Shengrong
• Primary Examiner(s): Ensey, Brian
• Application Number:
  US15/403,501
• Publication Number:
  US 20180027322A1
• Time in Patent Office: 538 Days
• CPC Class Codes: G10K 11/162 Selection of materials
• CPC Class Codes: H04R 1/288 for loudspeaker transducers
• CPC Class Codes: H04R 31/006 Interconnection of transducer parts of diaphragm and outer suspension by moulding H04R31/003
• CPC Class Codes: H04R 9/022 Cooling arrangements
• CPC Class Codes: H04R 9/06 Loudspeakers

Abstract

A speaker box includes a housing including a bottom wall and a side wall extending from the bottom wall, and a speaker unit in the housing. The speaker box further includes hard sound-absorbing material for supporting and integrally molded with the side wall. The hard sound-absorbing material forms an accommodation space for accommodating the speaker unit therein. The present disclosure further discloses a method for manufacturing the speaker box mentioned above.

Claims

1. A speaker box including:

a housing including a bottom wall and a side wall extending from the bottom wall;

a speaker unit in the housing;

hard sound-absorbing material for supporting and integrally molded with the side wall;

wherein

the hard sound-absorbing material forms an accommodation space for accommodating the speaker unit therein;

wherein, the speaker unit includes a vibration system and a magnetic circuit system, the vibration system including a vibrating diaphragm and a voice coil for driving the vibrating diaphragm, the magnetic circuit system having a bottom part away from the vibration diaphragm and a side part extending from an edge of the bottom part towards the vibration diaphragm, the bottom part and the side part forming a cavity with an opening towards the vibration diaphragm, the voice coil extending partially into the cavity, with the bottom part contacting directly with the bottom wall, and the side part contacting directly with the hard sound-absorbing material.

2. The speaker box as described in claim 1, wherein the side wall includes a side portion extending perpendicularly from the bottom wall.

3. The speaker box as described in claim 2, wherein the side wall further includes a support portion extending from the side portion to the accommodation space.

4. The speaker box as described in claim 2, wherein the vibrating diaphragm is fixed on the side portion or the hard sound-absorbing material.

5. The speaker box as described in claim 3, wherein the vibrating diaphragm is fixed on the support portion.

6. The speaker box as described in claim 1, wherein the hard sound-absorbing material is porous material.

7. The speaker box as described in claim 6, wherein the opening rate of porous material is more than 90%.

8. The speaker box as described in claim 6, wherein the opening rate of porous material is more than 50%.

9. The speaker box as described in claim 6, wherein the opening rate of porous material is more than 40%.

10. The speaker box as described in claim 6, wherein the porous material is porous ceramics, porous glass or porous metal, pure material or composite material in general.

11. A method for manufacturing a speaker box as described in claim 1, comprising the steps of:

providing a mold;

processing the hard sound-absorbing material into a required size and then disposing the hard sound-absorbing material into the mold for forming a mold core inside the mold for the housing;

injecting injection liquid into the mold;

forming the housing by molding the injection liquid and the hard sound-absorbing material;

separating the mold and the housing;

assembling a speaker unit into the housing.