Small-size sound equipment capable of improving tone quality
Through the combined design of independent speaker cavity, full-frequency speaker and low-frequency passive radiator, the problem of insufficient bass of small-volume audio is solved, the sound quality improvement and high-frequency effect are enhanced, and an excellent auditory experience is provided.
Patent Information
- Application Number
- CN202422131659.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Due to the limitation of the acoustic space of small-volume sound waves, it is difficult for low-frequency sound waves to resonate and spread effectively, affecting the sound quality performance, especially insufficient bass effect.
It adopts an independent speaker cavity design, combining full-frequency speakers and low-frequency passive radiators, improves sound quality through careful layout, and embedded a speaker mesh made of stainless steel or copper in the front shell to enhance high-frequency vibration, combining the front shell and rear cover made of ABS plastic.
While maintaining a small size, the bass effect is significantly improved, ensuring the clean and pure sound and providing an excellent auditory experience.
Smart Images

Figure CN223231256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of audio, in particular to a small-volume audio with improved sound quality. Background Art
[0002] In the field of audio technology, small speakers are widely popular for their portability and adaptability to various spaces. However, they have long faced a difficult challenge: poor sound quality, particularly a noticeable lack of bass. This is primarily due to the fact that their small size limits the expansion of the acoustic space within the speaker, making it difficult for low-frequency sound waves to resonate and diffuse effectively, thus affecting overall sound quality.
[0003] Traditionally, to improve bass, speaker designs tend to increase their size to provide more room for low-frequency sound waves to resonate. However, this approach contradicts the design philosophy of compact speakers and fails to meet modern consumers' demands for both portability and sound quality. Therefore, how to significantly enhance bass while maintaining a small size has become a pressing technical challenge in the audio technology field. Utility Model Content
[0004] In view of the shortcomings of the prior art, the present invention provides a small-volume speaker with improved sound quality, which solves the problems raised by the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A small-volume speaker with improved sound quality, comprising a front shell and a rear cover, and further comprising:
[0006] An independent speaker cavity is installed inside the front housing;
[0007] A full-range speaker, wherein the full-range speaker is installed in a reserved hole of the independent speaker cavity;
[0008] A low-frequency passive radiator is installed in a reserved slot of an independent speaker cavity.
[0009] Furthermore, a speaker mesh is embedded in the front surface of the front shell, and the speaker mesh is a component made of stainless steel or copper.
[0010] Furthermore, a power supply and a circuit board are installed inside the front shell.
[0011] Furthermore, the circuit board is integrated with a power contact switch, a volume adjustment switch, a charging interface and a reset contact switch.
[0012] Furthermore, a power switch key cap and an indicator light are respectively provided on the upper portion of the front shell, and the position of the power switch key cap corresponds to the power contact switch.
[0013] Furthermore, the front shell, rear cover, and independent speaker cavity are all made of ABS plastic.
[0014] The utility model provides a small-volume speaker with improved sound quality. Compared with the existing technology, it has the following advantages:
[0015] This compact speaker effectively addresses the issues of poor sound quality and insufficient bass often associated with small speakers by carefully placing full-range speakers and low-frequency passive radiators, combined with independent cavity technology. Furthermore, the independent cavity design ensures clean and pure sound while maintaining low-frequency effects, delivering a superior listening experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the disassembly of the utility model;
[0017] Figure 2 This is a schematic diagram of the installation of the independent speaker cavity, full-range speaker, and low-frequency passive radiator in the present invention;
[0018] Figure 3 This is a schematic diagram of the structure of the circuit board in the present utility model;
[0019] Figure 4 This is an assembly diagram of the present utility model.
[0020] In the figure: 1. Front shell; 11. Speaker grille; 2. Back cover; 3. Independent speaker cavity; 4. Full-range speaker; 5. Low-frequency passive radiator; 6. Power supply; 7. Circuit board; 71. Power contact switch; 72. Volume adjustment switch; 73. Charging port; 74. Reset contact switch; 8. Power switch cap; 9. Indicator light. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figure 1-4, The utility model provides a technical solution: a small-volume speaker with improved sound quality, which consists of a front shell 1, a back cover 2, an independent speaker cavity 3, a full-range speaker 4, a low-frequency passive radiator 5, a power supply 6, a circuit board 7, a power switch key cap 8 and an indicator light 9, wherein the front shell 1 and the back cover 2 are connected and fixed by a plurality of screws, and the independent speaker cavity 3 is installed inside the front shell 1 by a plurality of screws, and the front shell 1, the back cover 2 and the independent speaker cavity 3 are all components made of ABS plastic material, and reserved holes and reserved grooves are respectively provided on the front side of the independent speaker cavity 3, wherein the full-range speaker 4 is installed in the reserved hole of the independent speaker cavity 3, and the low-frequency passive radiator 5 is installed in the reserved groove of the independent speaker cavity 3. The independent speaker cavity 3 with the full-range speaker 4 and the low-frequency passive radiator 5 in the small-volume speaker solves the problems of poor sound effect and insufficient bass of the small-volume speaker, and the independent speaker cavity 3 ensures clean sound while having a low-frequency effect;
[0023] A speaker grille 11 is embedded in the front of the front housing 1. The speaker grille is made of stainless steel or copper. Sound vibrations are transmitted to the metal front grille, which strengthens high-frequency vibrations. The sound produces multiple overtones, making the high frequencies more obvious. While the low-frequency passive radiator strengthens the bass, the high-frequency signals are not lost, thereby better restoring the sound effect of the playback.
[0024] The circuit board 7 is respectively integrated with a power contact switch 71, a volume adjustment switch 72, a charging interface 73 and a reset contact switch 74. The upper part of the front shell 1 is respectively provided with a power switch key cap 8 and an indicator light 9. The position of the power switch key cap 8 corresponds to the power contact switch 71. When the power switch key cap 8 is pressed, the power contact switch 71 can be pressed.
Claims
1. A small-volume speaker with improved sound quality, comprising a front shell (1) and a rear cover (2), characterized in that: Also includes: An independent speaker cavity (3), the independent speaker cavity (3) being installed inside the front housing (1); A full-range speaker (4), wherein the full-range speaker (4) is installed in a reserved hole of the independent speaker cavity (3); A low-frequency passive radiator (5), wherein the low-frequency passive radiator (5) is installed in a reserved slot of the independent speaker cavity (3).
2. A small-volume speaker with improved sound quality according to claim 1, characterized in that: A speaker mesh (11) is embedded in the front surface of the front shell (1), and the speaker mesh (11) is a component made of stainless steel or copper.
3. The small-volume speaker with improved sound quality according to claim 1, characterized in that: A power supply (6) and a circuit board (7) are also installed inside the front shell (1).
4. The small-volume speaker with improved sound quality according to claim 3, characterized in that: The circuit board (7) is respectively integrated with a power contact switch (71), a volume adjustment switch (72), a charging interface (73), and a reset contact switch (74).
5. The small-volume speaker with improved sound quality according to claim 1, characterized in that: A power switch key cap (8) and an indicator light (9) are respectively provided on the upper portion of the front shell (1), and the position of the power switch key cap (8) corresponds to the power contact switch (71).
6. The small-volume speaker with improved sound quality according to claim 1, characterized in that: The front shell (1), the rear cover (2), and the independent speaker cavity (3) are all components made of ABS plastic material.