An integrated passive radiator acousto-optical integrated loudspeaker module and an ultra-thin sound box

By integrating the loudspeaker and passive radiator into a single module, the problem of separate installation of the loudspeaker and passive radiator is solved, achieving an ultra-thin speaker design and synchronized sound and light effects.

CN122227158APending Publication Date: 2026-06-16FIRST AUDIO MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FIRST AUDIO MFG CO LTD
Filing Date
2026-03-18
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The speaker and passive radiator are installed as separate components, which makes installation cumbersome, takes up a lot of space, and makes it difficult to achieve an ultra-thin speaker design.

Method used

The loudspeaker and passive radiator are integrated into a single module, rigidly connected by inner and outer frames and connecting columns. The inner R-ring and the outer R-ring of the loudspeaker are integrally vulcanized, and the lighting components are integrated in the weighted area of ​​the passive radiator.

Benefits of technology

Simplify the installation process, ensure product consistency, achieve an ultra-thin design, and enhance product value through synchronized sound and light effects.

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Abstract

An integrated passive radiator loudspeaker module and an ultrathin sound equipment, comprising an inner basket, an outer extension basket and a ring-shaped passive radiator; the inner basket is used for mounting a loudspeaker unit; the outer extension basket is concentrically arranged at the periphery of the inner basket and is rigidly connected with the inner basket through a plurality of connecting columns; the ring-shaped passive radiator is arranged between the inner basket and the outer extension basket, an inner R ring of the ring-shaped passive radiator is integrally vulcanized with an R ring on the outer side of the sound cone of the loudspeaker and is fixed to the inner basket, and an outer R ring of the ring-shaped passive radiator is fixed to the outer extension basket; the loudspeaker and the passive radiator are integrated into a module, the mounting process is simplified, the production efficiency and product consistency are improved, and the cabinet is extremely thinned through the outer extension basket structure.
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Description

Technical Field

[0001] This invention relates to the field of electroacoustic conversion device technology, specifically to a novel structure that integrates a loudspeaker unit with a ring-shaped passive radiator, which is particularly suitable for ultra-thin audio systems with strict thickness limitations. Background Technology

[0002] Currently, passive radiator technology is commonly used in speaker design to improve low-frequency performance within a small enclosure. However, existing solutions suffer from the following problems: the speaker and passive radiator are two separate components, requiring separate drilling, installation, and sealing on the speaker enclosure, resulting in numerous procedures and poor installation consistency; furthermore, their "flat" layout inside the enclosure competes for limited enclosure size and thickness resources, severely restricting the ultra-thin design of audio products.

[0003] Chinese patent document CN208489986U discloses a passive radiator that uses a surround speaker arrangement, which increases the passive radiation area to some extent, but it still needs to be installed separately from the speaker and does not achieve modular integration. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a speaker module with an integrated passive radiator and an ultra-thin speaker, so as to solve the problems of separate installation of speaker and passive radiator in the prior art, large space occupation, and difficulty in achieving ultra-thinness.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: an integrated acoustic and optical loudspeaker module with a passive radiator, comprising: Inner basket, used to mount speaker units; An extended basin frame is concentrically arranged around the inner basin frame and rigidly connected to the inner basin frame via connecting columns; A ring-shaped passive radiator is disposed between the inner basin frame and the outer basin frame; The annular passive radiator includes an inner R-ring and an outer R-ring. The inner R-ring is integrally vulcanized with the R-ring on the outside of the speaker cone and fixed to the inner frame. The outer R-ring is fixed to the outer frame.

[0006] As an improvement, the inner R-ring and the outer R-ring of the speaker cone are vulcanized together by a Y-shaped structure and fixed to the inner frame by adhesive.

[0007] As an improvement, the weight of the ring-shaped passive radiator is located between the inner R-ring and the outer R-ring, and the weight area is equipped with an illumination component to achieve a sound and light synchronization effect.

[0008] As an improvement, the lighting component is an LED light strip or light guide strip, which is disposed in the area of ​​the weight block and emits light outward.

[0009] As an improvement, the weighted area is provided with a replaceable lighting ring, which is fixed by a snap or adhesive.

[0010] As an improvement, the extended frame is provided with mounting holes for fixing the entire module to the speaker cabinet.

[0011] As an improvement, the loudspeaker unit includes a cone, a voice coil, and a magnetic circuit.

[0012] The present invention also provides an ultra-thin speaker, including an integrated acoustic and optical speaker module with an integrated passive radiator as described in any of the above claims.

[0013] The beneficial effects of this invention compared to the prior art are: 1. By pre-installing the speaker and passive radiator as one unit, the speaker manufacturer only needs to drill one hole and screw in one ring of screws to complete the installation, which greatly simplifies the production process and ensures product consistency. 2. The inner R-ring of the passive radiator and the outer R-ring of the speaker are integrally vulcanized and molded. The vibration system of the passive radiator is "suspended" between the inner and outer frames, achieving acoustic coupling with the speaker unit. 3. By using the extended frame and connecting column structure, the passive radiator is "lifted" to a different plane from the speaker unit. The cabinet thickness only needs to accommodate the height of the speaker magnetic circuit and the thickness of the outer frame substrate, achieving an ultra-thin design. 4. Integrate lighting components in the weighted area of ​​the passive radiator to achieve dynamic lighting effects that move with the music, thereby increasing the added value of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an ultra-thin speaker.

[0015] Figure 2 An exploded view of the ultra-thin speaker.

[0016] Figure 3 This is a cross-sectional view of the speaker module. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] like Figure 1 As shown, an ultra-thin speaker includes a speaker module 1 and a speaker enclosure 2, wherein the speaker module 1 integrates a speaker and a passive radiator.

[0019] like Figure 3As shown, the loudspeaker includes a loudspeaker unit and an inner frame 16 for the loudspeaker unit. The loudspeaker unit includes a cone, a voice coil, a magnetic circuit, and an R-ring 14 disposed on the outside of the cone. The inner side of the R-ring 14 on the outside of the cone is connected to the outer side of the cone.

[0020] like Figure 3 As shown, the passive radiator includes an extended frame 15, a weight 12, an inner R-ring 13, and an outer R-ring 11. The extended frame 15 is concentrically arranged around the inner frame 16, and the inner frame 16 is disposed inside the extended frame 15. The bottoms of the extended frame 15 and the inner frame 16 are rigidly connected by a connecting post 17. The body of the passive radiator is annular and disposed between the inner frame 16 and the extended frame 15. The inner R-ring 13 is integrally vulcanized with the R-ring on the outside of the speaker cone, and the inner R-ring 13 and the R-ring on the outside of the speaker cone are integrally vulcanized through a Y-shaped structure and fixed to the top of the inner frame 16 by adhesive. The outer R-ring 11 is fixedly pasted to the top of the extended frame 15. The weight 12 of the annular passive radiator is disposed between the inner R-ring 13 and the outer R-ring 11. The vibration system of the passive radiator is "suspended" between the inner frame 16 and the outer frame 15 to achieve acoustic coupling with the speaker unit. The entire composite module can be fixed to the speaker cabinet 22 in one go through the mounting holes on the outer frame 15.

[0021] The annular weight block 12 area can be equipped with an lighting component to achieve a synchronized sound and light effect. The lighting component is an LED light strip or light guide strip, which is set in the weight block 12 area and emits light outward. Due to the passive radiator vibrating at low frequency, a dynamic light and shadow effect can be produced. Replaceable light rings (such as ring-shaped parts with different light transmission patterns and colors) can be further designed and fixed to the annular weight block 12 area by means of buckles, glue, etc., to achieve personalized customization.

[0022] like Figure 2 As shown, the speaker enclosure 2 includes a base 23 and a side panel 22. The bottom of the extended frame 15 is fixed to the base 23 by screws 24. The upper inner side of the side panel 22 is provided with a flange 221. The top of the extended frame 15 is fixed to the flange 221 by screws 21.

Claims

1. A sound and light integrated loudspeaker module with an integrated passive radiator, characterized in that, include: Inner basket, used to mount speaker units; An extended basin frame is concentrically arranged around the inner basin frame and rigidly connected to the inner basin frame via connecting columns; A ring-shaped passive radiator is disposed between the inner basin frame and the outer basin frame; The annular passive radiator includes an inner R-ring and an outer R-ring. The inner R-ring is integrally vulcanized with the R-ring on the outside of the speaker cone and fixed to the inner frame. The outer R-ring is fixed to the outer frame.

2. The speaker module according to claim 1, characterized in that, The inner R-ring and the outer R-ring of the speaker cone are integrally vulcanized through a Y-shaped structure and fixed to the inner frame by adhesive.

3. The speaker module according to claim 1, characterized in that, The weight of the ring-shaped passive radiator is located between the inner R-ring and the outer R-ring, and the weight area is equipped with an illumination component to achieve a sound and light synchronization effect.

4. The speaker module according to claim 3, characterized in that, The lighting component is an LED light strip or light guide strip, which is set in the area of ​​the weight block and emits light outward.

5. The speaker module according to claim 3, characterized in that, The weighted area is equipped with a replaceable lighting ring, which is fixed by a snap or adhesive.

6. The speaker module according to claim 1, characterized in that, The extended frame is provided with mounting holes for fixing the entire module to the speaker cabinet.

7. The speaker module according to claim 1, characterized in that, The loudspeaker unit includes a cone, a voice coil, and a magnetic circuit.

8. An ultra-thin speaker, characterized in that, The loudspeaker module includes the integrated passive radiator as described in any one of claims 1 to 7.

9. The ultra-thin speaker according to claim 1, characterized in that, The ultra-thin speaker also includes a cabinet, which includes a base and a side panel. The bottom of the extended frame is fixed to the base, and the upper inner side of the side panel is provided with a flange. The top of the extended frame is fixed to the flange by screws.

Citation Information

Patent Citations

  • Passive radiator

    CN208489986U