A sound box
By adding a second acoustic cavity inside the speaker and using a speaker tube to achieve sound wave reflection and resonance, the problem of insufficient speaker tone was solved, and the speaker tone was made comparable to that of a real musical instrument.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
Conventional speakers cannot reproduce the rich tones that are comparable to those of real musical instruments.
A second acoustic cavity is added inside the speaker and connected to the first acoustic cavity through a speaker tube. One end of the speaker tube is located on the back of the tweeter assembly. Speaker tubes of different diameters and lengths are selected to achieve sound wave reflection and resonance.
By adding a second acoustic cavity and a speaker tube, the speaker can produce a richer timbre, comparable to the sound performance of a real musical instrument.
Smart Images

Figure CN224503460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speaker technology, and in particular to a speaker. Background Technology
[0002] With the development of technology, music has become an indispensable form of leisure for many people. For some music lovers, they prefer the sound produced by real musical instruments. However, the timbre produced by conventional speakers is far less rich than that of real musical instruments and cannot match the sound performance of real instruments. Utility Model Content
[0003] The problem this invention aims to solve is to provide a speaker that can reproduce a richer range of tones.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a speaker enclosure, including an enclosure body and a protective cover disposed on the front of the enclosure body. The enclosure body contains a first acoustic cavity, on which a tweeter assembly and a woofer assembly are disposed. The enclosure body also contains a second acoustic cavity. The first and second acoustic cavities are separated by a partition. The first and second acoustic cavities are connected by a speaker tube passing through the partition. The speaker tube is fixedly connected to the enclosure body. One end of the speaker tube is located on the back of the tweeter assembly, and the other end of the speaker tube extends into the second acoustic cavity. The principle of this utility model is as follows: by adding a second acoustic cavity and a speaker tube connecting the first and second acoustic cavities within the enclosure body, with one end of the speaker tube located on the back of the tweeter assembly, the manufacturer can select speaker tubes of different diameters and lengths according to actual needs. This allows the speaker tube to help reflect and resonate sound waves, enabling the utility model to exhibit a richer timbre, thus comparable to the sound performance of a real musical instrument.
[0005] As an improvement, the first acoustic cavity and the second acoustic cavity are arranged vertically within the housing, with the second acoustic cavity positioned above the first acoustic cavity.
[0006] As an improvement, the loudspeaker tube is J-shaped and includes a straight section and a curved section disposed in the second acoustic cavity. One end of the straight section is fixed to the inner wall of the first acoustic cavity with glue, and the other end of the straight section passes through a partition and is connected to one end of the curved section. The curved section is arc-shaped and its outer wall abuts against the top of the second acoustic cavity. The other end of the curved section opens downward.
[0007] As an improvement, the partition is provided with mounting holes that mate with the loudspeaker tube, through which the loudspeaker tube passes.
[0008] As an improvement, the enclosure includes a back panel and side panels on both sides of the back panel, and the speaker tube is located at the junction of the side panels and the back panel.
[0009] As an improvement, the tweeter assembly and the woofer assembly are vertically mounted on the enclosure. The tweeter assembly consists of two tweeter units, and the woofer assembly consists of six woofer units, with two woofer units positioned above the two tweeter units and the other four woofer units positioned below the two tweeter units. One end of the speaker tube is positioned on the back of the upper tweeter unit among the two tweeter units.
[0010] As an improvement, the front of the enclosure is also provided with an air vent that connects to the outside and the first acoustic cavity, and the air vent is located above the woofer assembly.
[0011] As an improvement, the first acoustic cavity is also provided with sound-absorbing cotton, which is disposed on the back of the tweeter unit and the back of the woofer unit.
[0012] As an improvement, the inner wall of the protective cover is lined with a mesh.
[0013] The beneficial effects of this utility model are: by adding a second acoustic cavity and a speaker tube connecting the first and second acoustic cavities inside the enclosure, and with one end of the speaker tube located on the back of the tweeter unit, the manufacturer can select speaker tubes of different diameters and lengths according to the actual situation, so that the sound waves inside the speaker tube can be reflected and resonated, making this utility model exhibit a richer timbre, and thus comparable to the sound performance of real musical instruments. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the hidden protective cover of this utility model.
[0016] Figure 3 for Figure 2 The front view.
[0017] Figure 4 This is a rear view of the present invention after concealing the back panel and side panels.
[0018] Explanation of the labels in the diagram: 1. Enclosure 1; 11. First acoustic cavity 11; 12. Second acoustic cavity 12; 13. Partition 13; 14. Speaker tube 14; 15. Vent 15; 16. Woofer unit 16; 17. Tweeter unit 17; 2. Protective cover 2. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings.
[0020] like Figures 1 to 4 As shown, a speaker enclosure includes a housing 1 and a protective cover 2 disposed on the front of the housing 1. The housing 1 contains a first acoustic cavity 11 and a second acoustic cavity 12. A tweeter assembly and a woofer assembly are disposed on the outer wall of the first acoustic cavity 11. The first acoustic cavity 11 and the second acoustic cavity 12 can be arranged horizontally or vertically; preferably, they are arranged vertically, with the second acoustic cavity 12 positioned above the first acoustic cavity 11. The first acoustic cavity 11 and the second acoustic cavity 12 are separated by a partition 13 horizontally disposed within the housing 1. The partition 13 has mounting holes for a speaker tube 14 to pass through. The speaker tube 14 mates with the mounting holes, with one end extending into the first acoustic cavity 11 and reaching the back of the tweeter assembly, and the other end extending into the second acoustic cavity 12, thus connecting the first acoustic cavity 11 and the second acoustic cavity 12. The length of the speaker tube 14 directly affects the frequency of the sound it produces; a long tube produces low-frequency sound, while a short tube produces high-frequency sound. At the same time, the diameter of the speaker tube 14 also affects the timbre; a thicker tube can produce a richer and deeper sound. Therefore, manufacturers can choose speaker tubes 14 of different lengths and diameters according to actual conditions.
[0021] To enhance the fixation of the speaker tube 14 and improve its design, the speaker tube 14 is J-shaped and includes a straight section and a curved section located within the second acoustic cavity 12. One end of the straight section is fixed to the inner wall of the first acoustic cavity 11 with glue and extends to the tweeter assembly. The other end of the straight section passes through the partition 13 and connects to one end of the curved section. The curved section is arc-shaped, and its outer wall abuts against the top of the second acoustic cavity 12. The other end of the curved section has an opening facing downwards. The enclosure 1 includes a back panel and side panels located on both sides of the back panel. To enhance the protection of the speaker tube 14, the speaker tube 14 is located at the junction of the back panel and the side panels, i.e., the mounting hole is located on one side of the partition 13 and at the end away from the protective cover 2.
[0022] The tweeter assembly and woofer assembly are vertically mounted on the enclosure 1. The tweeter assembly consists of two tweeter units 17, and the woofer assembly consists of six woofer units 16, with two woofer units 16 positioned above the two tweeter units 17 and the other four woofer units 16 positioned below the two tweeter units 17. One end of the speaker tube 14 is located on the back of the upper tweeter unit 17. The first acoustic cavity 11 is also equipped with sound-absorbing cotton, which is placed on the back of both the tweeter units 17 and the woofer units 16. The front of the enclosure 1 is also provided with an vent 15 connecting the enclosure to the outside and the first acoustic cavity 11. The vent 15 is located above the uppermost woofer unit 16. That is, the outer wall of the first acoustic cavity 11 consists of the vent 15, two woofer units 16, two tweeter units 17, and four woofer units 16 from top to bottom. The inner wall of the protective cover 2 is lined with mesh.
[0023] This invention adds a second acoustic cavity 12 and a speaker tube 14 connecting the first acoustic cavity 11 and the second acoustic cavity 12 inside the housing 1. One end of the speaker tube 14 is located on the back of the tweeter unit 17. The manufacturer selects speaker tubes 14 with different diameters and lengths according to actual conditions, so that the sound waves inside the speaker tube 14 can be reflected and resonated, making this invention exhibit a richer timbre and thus comparable to the sound performance of real musical instruments.
Claims
1. A speaker enclosure, comprising an enclosure body and a protective cover disposed on the front of the enclosure body, wherein a first acoustic cavity is provided inside the enclosure body, and a tweeter assembly and a woofer assembly are disposed on the first acoustic cavity body, characterized in that: The enclosure also includes a second acoustic cavity. The first acoustic cavity and the second acoustic cavity are separated by a partition. The first acoustic cavity and the second acoustic cavity are connected by a speaker tube passing through the partition. The speaker tube is fixedly connected to the enclosure. One end of the speaker tube is located on the back of the tweeter assembly, and the other end of the speaker tube extends into the second acoustic cavity.
2. The speaker according to claim 1, characterized in that: The first acoustic cavity and the second acoustic cavity are arranged vertically inside the enclosure, with the second acoustic cavity positioned above the first acoustic cavity.
3. The speaker according to claim 2, characterized in that: The loudspeaker tube is J-shaped and includes a straight section and a curved section disposed in the second acoustic cavity. One end of the straight section is fixed to the inner wall of the first acoustic cavity with glue, and the other end of the straight section passes through a partition and is connected to one end of the curved section. The curved section is arc-shaped and its outer wall abuts against the top of the second acoustic cavity. The other end of the curved section opens downwards.
4. The speaker according to claim 1, characterized in that: The partition plate is provided with mounting holes that mate with the loudspeaker tube, through which the loudspeaker tube passes.
5. The speaker according to claim 1, characterized in that: The enclosure includes a back panel and side panels on both sides of the back panel, and the speaker tube is located at the junction of the side panels and the back panel.
6. The speaker according to claim 1, characterized in that: The tweeter assembly and the woofer assembly are vertically mounted on the enclosure. The tweeter assembly consists of two tweeter units, and the woofer assembly consists of six woofer units, with two woofer units positioned above the two tweeter units and the other four woofer units positioned below the two tweeter units. One end of the speaker tube is located on the back of the upper tweeter unit among the two tweeter units.
7. The speaker according to claim 6, characterized in that: The front of the enclosure is also provided with an air vent that connects to the outside and the first acoustic cavity, and the air vent is located above the woofer assembly.
8. The speaker according to claim 6, characterized in that: The first acoustic cavity is also provided with sound-absorbing cotton, which is placed on the back of the tweeter unit and the back of the woofer unit.
9. The speaker according to claim 1, characterized in that: The inner wall of the protective cover is lined with mesh.