Sound structure of best machine

By integrating a subwoofer and a passive radiator into the base of the speaker, a large sound cavity is formed, which solves the problem of poor sound quality, improves the propagation effect of low-frequency sound, and enhances the user experience.

CN223993725UActive Publication Date: 2026-03-13GUANGDONG CHANGXIN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing speaker structure of the "bestie phone" has poor sound quality, especially the speakers installed behind the display screen or in the base have inconsistent sound direction, which affects the user experience.

Method used

The subwoofer and passive radiator are integrated into the base to form a large sound cavity, which improves the sound quality by utilizing the base space, and optimizes the sound effect through the battery pack charging circuit and sound effect control circuit.

Benefits of technology

It significantly improves the sound quality of the bestie phone, especially the propagation of low-frequency sounds, thus enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a best machine sound equipment structure which comprises a best machine base outer shell, the best machine base outer shell is composed of an upper shell body and a lower shell body, the upper shell body and the lower shell body are connected in a sealing and buckling mode, the top of the upper shell body is provided with a concave battery pack sinking position, and a battery pack is installed in the battery pack sinking position. A cover is detachably mounted at an opening above the battery pack sinking position; the battery pack sinking position and the cover jointly form a battery bin for accommodating the battery pack; a plurality of bass loudspeakers and a plurality of passive radiators are installed at the top of the lower shell, a plurality of universal wheel sinking positions used for installing universal wheels are installed at the bottom of the lower shell, and the sound production directions of the bass loudspeakers and the passive radiators face downwards. The utility model relates to the technical field of entertainment equipment, the subwoofer assembly is integrated in the base, the whole base is converted into the loud speaking cavity of the subwoofer, the transmission of low-frequency sound is facilitated, the tone quality of the best machine is greatly improved, and meanwhile, the structure layout is simple, and the design is reasonable.
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Description

Technical Field

[0001] This utility model belongs to the field of entertainment equipment technology, specifically to a speaker structure for a "bestie machine". Background Technology

[0002] The existing "bestie phones" on the market have different sound-producing mechanisms or accompanying speakers. Some have them installed behind the display screen, some inside the support rod, some inside the base, and some have even split the speakers into two parts: one part is a full-range speaker installed on the left and right sides of the display screen or above and below the display screen, and the other part is a subwoofer installed inside the base of the bestie phone.

[0003] However, all of the above installation methods have certain shortcomings, specifically:

[0004] Speakers mounted behind the display screen: Due to the small space of the display screen and the sound direction facing the back, the sound quality is very poor, which affects the user experience and is rarely used at present.

[0005] Speakers mounted on support rods or bases: Users will feel that the sound is coming from below, which is inconsistent with the orientation of the image and video in front, making it awkward or even uncomfortable for users to listen to.

[0006] The speaker system is divided into a full-range speaker and a subwoofer: the full-range speaker is mounted on either side or above and below the display screen, while the subwoofer is housed in the base. The subwoofer's sound is non-directional, and the full-range speaker's position aligns with the image and video, resulting in a better user experience. However, due to space limitations in the base, the subwoofer's size must be very small, leading to insufficient sound pressure level or poor sound quality.

[0007] Therefore, there is an urgent need for a new speaker structure for "best friend" phones to improve the sound quality of existing "best friend" phones. Utility Model Content

[0008] To address the issue of poor sound quality in existing speaker systems for best friend phones, this invention provides a new speaker system for best friend phones.

[0009] The technical solution adopted by this utility model is as follows: A speaker structure for a "bestie phone" includes a base shell, which is composed of an upper shell and a lower shell. The upper shell and the lower shell are connected by a sealing fastener. The top of the upper shell is provided with a recessed battery pack recess, in which a battery pack is installed. A cover is detachably installed on the opening above the battery pack recess. The battery pack recess and the cover together form a battery compartment for accommodating the battery pack. The top of the lower shell is provided with several woofers and several passive radiators. The bottom of the lower shell is provided with several caster recesses for installing casters. The sound emission direction of the woofers and passive radiators is downward.

[0010] Furthermore, a sliding hook is installed at the bottom of the cover, and an accessory is installed at the top of the battery pack recess. The accessory has a sliding groove, which slides in conjunction with the sliding hook.

[0011] Furthermore, the upper and lower housings are sealed and fastened together by tabs and grooves.

[0012] Furthermore, the battery charging circuit, sound effect control circuit, and / or audio amplifier circuit are also installed inside the base shell of the "bestie phone". The battery charging circuit, sound effect control circuit, and / or audio amplifier circuit are electrically connected to the subwoofer through connecting lines.

[0013] Furthermore, a microphone receiving circuit and / or a Bluetooth music receiving circuit can also be installed in the battery pack recess, and the microphone receiving circuit and / or Bluetooth music receiving circuit are electrically connected to the subwoofer through a connection line.

[0014] Furthermore, the top of the upper housing is also provided with several control buttons for controlling music volume, microphone volume, microphone reverb level, and microphone delay duration, as well as a display device for displaying various parameters.

[0015] Furthermore, the omnidirectional wheel is recessed and interspersed between the subwoofer and the passive radiator.

[0016] Furthermore, at least one subwoofer is provided.

[0017] Furthermore, the bottom of the lower housing is provided with sound holes corresponding to the sound-emitting positions of the bass speaker and the passive radiator.

[0018] Furthermore, the upper and lower housings are respectively provided with mounting holes for installing the support rod of the "bestie" machine.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] The speaker structure of this "bestie phone" integrates the subwoofer component into the base, transforming the entire base into the subwoofer's sound cavity. This facilitates the propagation of low-frequency sounds, greatly improving the sound quality of the "bestie phone." At the same time, the structure is simple and rationally designed. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural schematic diagram provided for an embodiment of this utility model;

[0023] Figure 2 for Figure 1 A bottom view;

[0024] Figure 3 for Figure 1 Top view;

[0025] Figure 4 This is a three-dimensional structural diagram of an embodiment of the present invention, omitting the lid;

[0026] Figure 5 for Figure 1 A schematic diagram of the internal three-dimensional structure;

[0027] Figure 6 for Figure 5 Top view;

[0028] Figure 7 for Figure 6 The structural diagram of the circuit board is omitted.

[0029] Figure 8 for Figure 1 A bottom view of the middle lid;

[0030] Figure 9 for Figure 8 Side view.

[0031] Figure descriptions: 1. Upper housing; 2. Lower housing; 3. Battery pack recess; 4. Battery pack; 5. Subwoofer; 6. Passive radiator; 7. Caster wheel recess; 8. Caster wheel; 9. Sound hole; 10. Mounting hole; 11. Cover; 12. Hook; 13. Accessories; 14. Slide. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] The following is combined Figures 1-9 This utility model will be described in detail.

[0036] Example

[0037] Example 1

[0038] like Figure 1 and Figure 5 As shown, a speaker structure for a "bestie phone" includes a base shell, which is composed of an upper shell 1 and a lower shell 2. The upper shell 1 and lower shell 2 are connected by a sealing fastener. Specifically, the upper shell 1 and lower shell 2 are sealed together using a protrusion and a groove, which is existing technology and will not be elaborated further. The sealing fastener between the upper shell 1 and lower shell 2 creates a sealed speaker cavity inside the entire base shell. Unlike existing technologies that directly install a subwoofer inside the base, this design effectively utilizes the internal space of the base, making the speaker cavity larger and thus improving sound quality.

[0039] The upper shell 1 and the lower shell 2 can be cylindrical, semi-circular, elliptical, or other shapes, which facilitates processing and prevents users from being injured by bumps.

[0040] The top of the upper housing 1 has a recessed battery pack recess 3, in which a battery pack 4 is installed. A cover 11 is detachably installed above the opening of the battery pack recess 3. The battery pack recess 3 and the cover 11 together form a battery compartment for accommodating the battery pack 4. It is worth noting that the battery pack recess 3 at the top of the upper housing 1 can be located in the middle of the upper housing 1, which helps to stabilize the center of gravity.

[0041] The top of the lower housing 2 is equipped with several subwoofers 5 and several passive radiators 6, and the bottom of the lower housing 2 is equipped with several caster slots 7 for mounting casters 8. At least one subwoofer 5 is provided, and the operator can select and install an appropriate number of subwoofers 5 and passive radiators 6 according to actual needs.

[0042] like Figure 7As shown, preferably, there are two subwoofers 5 and two passive radiators 6.

[0043] The bass speaker 5 and the passive radiator 6 are emitting sound downwards. The bottom of the lower housing 2 is provided with a sound hole 9 corresponding to the sound emission position of the bass speaker 5 and the passive radiator 6, ensuring that low-frequency sound can be transmitted to the outside of the lower housing 2 through the sound hole 9.

[0044] This invention optimizes the design of the speaker base, transforming the entire base into a subwoofer to enhance sound quality. This design utilizes the internal space of the base, creating a large cavity that facilitates the propagation of subwoofer sound waves and improves bass response. The subwoofer speaker 5 converts electrical signals into low-frequency sounds, while the passive radiator 6 enhances the amplitude of low-frequency sounds through resonance. Together, they produce a deeper and more powerful bass. The circuit board 7 distributes battery power to ensure the subwoofer speaker 5 functions properly.

[0045] Unlike existing technologies that directly mount the subwoofer inside the base of the speaker, this design effectively utilizes the internal space of the base, creating a larger cavity and thus improving sound quality. The use of a passive radiator also helps to enhance the low-frequency response, making the bass richer.

[0046] The passive radiator 6 functions similarly to an "auxiliary bass unit," extending the range and depth of the low-frequency response through resonance. Specifically, the passive radiator 6 resonates with the vibration of the subwoofer 5. When the subwoofer 5 vibrates, it pushes the diaphragm of the passive radiator 6, thereby enhancing the amplitude of the low-frequency sound.

[0047] like Figure 5 As shown, the battery charging circuit, sound effect control circuit and / or audio amplifier circuit are also installed inside the base shell of the best friend machine. The battery charging circuit, sound effect control circuit and / or audio amplifier circuit are electrically connected to the subwoofer 5 through connecting lines.

[0048] like Figure 3 As shown, the top of the upper housing 1 is also provided with several control buttons for controlling music volume, microphone volume, microphone reverb level, and microphone delay duration, as well as a display device for displaying various parameters.

[0049] like Figure 1 , Figure 4 , Figure 8 and Figure 9As shown, the cover 11 with an opening above the battery pack recess 3 is detachable. Specifically, a sliding hook 12 is installed at the bottom of the cover 11, and an accessory 13 is installed at the top of the battery pack recess 3. The accessory 13 has a sliding groove 14, which slides into the sliding hook 12. Rotating the cover 11 clockwise causes the sliding hook 12 to slide into the sliding groove 14 on the accessory 13, thus completing the assembly and fixation. To remove the cover 11, rotate it counterclockwise, disengaging the sliding hook 12 from the sliding groove 14 on the accessory 13.

[0050] In the specific implementation process, it is worth noting that the detachable design of the cover 11 with the opening above the battery pack sink 3 is not limited to the above method. The cover 11 can also be installed or removed by self-locking pressing.

[0051] like Figure 5 , Figure 6 and Figure 7 As shown, a caster wheel recess 7 is interspersed between the subwoofer 5 and the passive radiator 6. This interspersed design creates a space between the passive radiator 6 and the subwoofer 5, reducing mechanical vibration of the cavity, lowering noise, and thus effectively improving the sound quality of the speaker.

[0052] The caster wheel recess 7 is equipped with caster wheels 8, and at least four caster wheels 8 are provided. Preferably, such as Figure 2 As shown, there are five casters 8.

[0053] The omnidirectional wheels 8 not only facilitate the flexible movement of the device, but also support the entire device together. The bottom of the lower casing 2 is about 10 mm away from the ground. Since the bass speaker 5 and the passive radiator 6 inside the base casing of the device are emitting sound downwards, low-frequency sounds are emitted through this gap.

[0054] like Figure 1 and Figure 2 As shown, the upper housing 1 and the lower housing 2 are respectively provided with mounting holes 10 for mounting the support rod of the "bestie phone". The support rod is installed in the mounting holes 10 of the upper housing 1 and the lower housing 2, and the display screen of the "bestie phone" is mounted on the support rod. This is prior art and will not be described in detail here.

[0055] Example 2

[0056] Based on the above embodiment 1, this embodiment can also install a microphone receiving circuit and / or a Bluetooth music receiving circuit in the battery pack recess 3. The microphone receiving circuit and / or Bluetooth music receiving circuit are electrically connected to the subwoofer 5 through a connecting line.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A BFF machine sound structure, characterized in that: The application relates to a BFF (Best Friend Forever) machine base shell which is composed of an upper shell (1) and a lower shell (2), the upper shell (1) is connected with the lower shell (2) through a sealed buckle connection, the top of the upper shell (1) is provided with a concave battery group recess (3), a battery group (4) is arranged in the battery group recess (3), a cover (11) is detachably arranged on the top of the battery group recess (3), and the battery group recess (3) and the cover (11) jointly form a battery compartment for accommodating the battery group (4); the top of the lower shell (2) is provided with a plurality of bass speakers (5) and a plurality of passive radiators (6), the bottom of the lower shell (2) is provided with a plurality of universal wheel recesses (7) for arranging universal wheels (8), and the sound emitting directions of the bass speakers (5) and the passive radiators (6) are downward. 2.The bestie machine sound structure according to claim 1, characterized in that: The bottom of the cover (11) is provided with a sliding hook (12), the top of the battery group recess (3) is provided with a fitting (13), a sliding groove (14) is formed in the fitting (13), and the sliding groove (14) is in sliding connection with the sliding hook (12). 3.The bestie machine sound structure according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are connected through a convex piece and a groove.

4. The bestie machine sound structure according to claim 1, characterized in that: A battery group charging circuit, an audio effect control circuit and / or an audio power amplifier circuit are arranged in the BFF machine base shell, the battery group charging circuit, the audio effect control circuit and / or the audio power amplifier circuit are electrically connected with the bass speakers (5) through connecting lines.

5. The bestie machine sound structure according to claim 1, wherein: A microphone receiving circuit and / or a Bluetooth music receiving circuit can be arranged in the battery group recess (3), and the microphone receiving circuit and / or the Bluetooth music receiving circuit are electrically connected with the bass speakers (5) through connecting lines. 6.The bestie machine sound structure according to claim 1, characterized in that: The top of the upper shell (1) is further provided with a plurality of control buttons for controlling music volume, microphone volume, microphone reverberation size, microphone time delay length and display devices for displaying various parameters. 7.The bestie machine sound structure according to claim 1, characterized in that: The universal wheel recesses (7) are arranged between the bass speakers (5) and the passive radiators (6). 8.The bestie machine sound structure according to claim 1, characterized in that: The bass speakers (5) are at least provided with one. 9.The bestie machine sound structure according to claim 1, characterized in that: The bottom of the lower shell (2) is provided with sound holes (9) corresponding to the sound emitting positions of the bass speakers (5) and the passive radiators (6). 10.The bestie machine sound structure according to claim 1, characterized in that: Mounting holes (10) for mounting BFF machine supporting rods are formed in the upper shell (1) and the lower shell (2).