Novel magnetic Bluetooth sound box
By introducing a main cavity and a resonant cavity structure into the Bluetooth speaker, the sound waves form standing waves in the resonant cavity when the speaker emits sound, which consumes energy. This solves the problem of sound waves not being able to resonate in the existing technology, and achieves the effects of reducing noise and improving sound quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHUOCHENG IND DEV CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-21
AI Technical Summary
Existing magnetic Bluetooth speakers suffer from insufficient sound wave compression due to their single-cavity structure, resulting in inadequate low-frequency response, high noise, low speaker efficiency, and an inability to accurately reproduce sound.
The design incorporates a main cavity and a resonant cavity. The loudspeaker is connected to the resonant cavity via a bass reflex port. When the loudspeaker emits sound, the sound waves form standing waves within the resonant cavity. Air molecules vibrate between the nodes, consuming energy. The resonant cavity reduces noise and sound distortion through air resonance.
Significantly reduces noise, improves low-frequency response, enhances sound quality reproduction, and reduces sound distortion.
Smart Images

Figure CN224154307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel magnetic Bluetooth speaker. Background Technology
[0002] Existing magnetic Bluetooth speakers are essentially single-cavity structures. In such structures, sound waves cannot be compressed, lack elasticity, and cannot generate sound wave resonance, resulting in insufficient low-frequency response, high noise, low speaker efficiency, and an inability to truly reproduce the essence of sound. Utility Model Content
[0003] The main objective of this invention is to provide a novel magnetic Bluetooth speaker, specifically offering the following solution:
[0004] A novel magnetic Bluetooth speaker includes a speaker body, which has a main cavity and a resonant cavity. A speaker is installed in the main cavity, and the rear end of the speaker is connected to the resonant cavity through a bass reflex tube.
[0005] Furthermore, the resonant cavity is equipped with a PCB board, which is electrically connected to the speaker.
[0006] Furthermore, as a further embodiment of this utility model: a battery module is installed in the resonant cavity, and the battery module is electrically connected to the PCB board.
[0007] Furthermore, a horn cover is fitted onto the main cavity.
[0008] Furthermore, a switch button is installed on the speaker body, and the switch button is electrically connected to the PCB board.
[0009] Furthermore, the resonant cavity is covered with a bottom cover, and a ring magnet is installed on the bottom cover.
[0010] Furthermore, the bottom cover is provided with threaded holes.
[0011] Furthermore, the bottom cover is provided with a hanging rope.
[0012] Furthermore, the bottom cover is provided with foot pads.
[0013] Beneficial effects: The Bluetooth speaker of this utility model is equipped with a main cavity and a resonant cavity. The speaker is placed in the main cavity. When the speaker emits sound, the sound wave enters the resonant cavity and forms a standing wave inside it. At this time, the air molecules vibrate back and forth between two adjacent nodes, thereby consuming the sound wave energy and absorbing and dissipating the sound wave. The resonant cavity can reduce noise through air resonance. Within the audio frequency response range, the resonant cavity can significantly reduce noise and sound distortion. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the Bluetooth speaker structure of this utility model;
[0016] Figure 2 This is another structural schematic diagram of the Bluetooth speaker of this utility model;
[0017] Figure 3 This is a schematic diagram of the exploded structure of the Bluetooth speaker of this utility model;
[0018] Figure 4 This is a cross-sectional structural diagram of the Bluetooth speaker of this utility model. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0023] See Figures 1 to 4 This utility model proposes a novel magnetic Bluetooth speaker, including a speaker body 1. The speaker body 1 is provided with a main cavity 11 and a resonant cavity 12. A speaker 2 is installed in the main cavity 11, and the rear end of the speaker 2 is connected to the resonant cavity 12 through a bass reflex tube 3.
[0024] The Bluetooth speaker of this invention is provided with a main cavity 11 and a resonant cavity 12. The speaker 2 is placed in the main cavity 11. When the speaker 2 emits sound, the sound wave enters the resonant cavity 12 and forms a standing wave inside it. At this time, the air molecules vibrate back and forth between two adjacent nodes, thereby consuming the sound wave energy and absorbing and dissipating the sound wave. The resonant cavity 12 can reduce noise through air resonance. Within the audio frequency response range, the resonant cavity 12 can significantly reduce noise and sound distortion.
[0025] In a further embodiment of this utility model: the resonant cavity 12 is equipped with a PCB board 4, and the PCB board 4 is electrically connected to the speaker 2.
[0026] In a further embodiment of this invention: a battery module 5 is mounted on the resonant cavity 12, and the battery module 5 is electrically connected to the PCB board 2. The battery module 5 is used to supply power to the electronic components and speakers on the PCB board;
[0027] As a further embodiment of this utility model: a horn cover 6 is fitted onto the main cavity 11.
[0028] In a further embodiment of this utility model, the resonant cavity 12 is covered with a bottom cover 7.
[0029] As a further embodiment of this invention, a ring magnet 8 is installed on the bottom cover 7. The magnet can be attracted to any iron object, such as mobile communication devices, refrigerators, sports equipment, furniture, walls, iron brackets, and other iron-containing items, so as to achieve detachable connection of the above-mentioned items and equipment.
[0030] In a further embodiment of this invention: a switch button 9 is installed on the speaker body 1, and the switch button 9 is electrically connected to the PCB board 2. The switch button 9 is used to turn the Bluetooth speaker on or off.
[0031] As a further embodiment of this utility model: the bottom cover 7 is provided with a threaded hole 71, which can be fastened to a bicycle bracket, a camera bracket, or an outdoor mobile bracket.
[0032] As a further embodiment of this utility model: the bottom cover 7 is provided with a hanging rope 10, which is convenient to carry in hand or attach to a backpack by combining with a climbing buckle.
[0033] As a further embodiment of this utility model: the bottom cover 7 is provided with foot pads 72, which serve to reduce shock and prevent slippage.
[0034] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A new type of magnetic Bluetooth speaker, characterized by: The sound box body is provided with a main cavity and a resonance cavity.
2. A new type of magnetic Bluetooth speaker according to claim 1, characterized in that, The resonance cavity is provided with a PCB board which is electrically connected with the speaker.
3. A new type of magnetic Bluetooth speaker according to claim 2, characterized in that, The resonance cavity is provided with a battery module which is electrically connected with the PCB board.
4. A new type of magnetic Bluetooth speaker according to claim 1, characterized in that, The main cavity is provided with a horn cover.
5. A new type of magnetic Bluetooth speaker according to claim 2, characterized in that, The sound box body is provided with a switch button which is electrically connected with the PCB board.
6. A new type of magnetic Bluetooth speaker according to claim 1, characterized in that, The bottom cover is provided with a threaded hole.
7. A new type of magnetic Bluetooth speaker according to claim 1, characterized in that, The bottom cover is provided with a hanging rope.
8. A new type of magnetic Bluetooth speaker according to claim 1, characterized in that, The bottom cover is provided with a foot pad.