Multimedia loudspeaker box assembly and electronic sound production equipment

Abstract

The utility model discloses a multimedia loudspeaker box assembly and an electronic sound production device, and relates to the technical field of loudspeaker devices, the multimedia loudspeaker box assembly is applied to the electronic sound production device, the electronic sound production device is provided with a housing, the multimedia loudspeaker box assembly comprises a loudspeaker box and a PCB, and the loudspeaker box is used for sending sound signals; the PCB is arranged in the loudspeaker box, and the loudspeaker box is located in the shell and connected with the shell. The loudspeaker box is used as the installation base of the electronic element, compared with a traditional mode that a PCB is used as the installation base of the electronic element, the loudspeaker box is high in structural strength and rigidity and has larger impact resistance and deformation resistance, when the electronic sound production equipment falls off, the loudspeaker box is not prone to damage and deformation, and therefore the anti-falling capacity of the electronic sound production equipment is improved, and the service life of the electronic sound production equipment is prolonged. The PCB and other electronic elements are installed on the loudspeaker box, only one loudspeaker box production mold needs to be designed, production molds of various fixed supporting structures do not need to be designed, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker device technology, and in particular to a multimedia loudspeaker box assembly and an electronic sound-generating device. Background Technology

[0002] A loudspeaker is an electroacoustic transducer that converts electrical energy into sound energy. It is a commonly used component in electronic sound-producing devices such as mobile phones and tablets.

[0003] In related technologies, within electronic sound-generating devices, electronic components such as speakers and cameras are typically soldered to a PCB board, which is then connected to the device's housing. The problem is that using the PCB board as the mounting base for these components is problematic because the PCB board itself is relatively thin and easily damaged or deformed by impacts, leading to damage to the electronic components and consequently, poor drop resistance of the electronic sound-generating device. Furthermore, to secure the electronic components and the PCB board to itself, various additional support structures are required within the device. Manufacturing these support structures necessitates the design of multiple production molds, increasing production costs. Utility Model Content

[0004] The main purpose of this utility model is to propose a multimedia speaker box assembly and an electronic sound-generating device, which aims to improve the impact resistance of the electronic sound-generating device and reduce its production cost.

[0005] To achieve the above objectives, the present invention proposes a multimedia speaker box assembly, which is applied to an electronic sound-generating device. The electronic sound-generating device has a housing, and the multimedia speaker box assembly includes a speaker box and a PCB board. The speaker box is used to emit sound signals. The PCB board is disposed in the speaker box, and the speaker box is located inside the housing and connected to the housing.

[0006] In one embodiment, the speaker box is provided with a first receiving groove, and the PCB board is located in the first receiving groove and is detachably connected to the inner wall of the first receiving groove.

[0007] In one embodiment, the inner wall of the receiving groove is provided with a positioning protrusion, and the PCB board is provided with a positioning hole, wherein the positioning protrusion is inserted into the positioning hole.

[0008] In one embodiment, the speaker box includes a box body and a diaphragm. A second receiving groove is provided on one side wall of the box body. The periphery of the diaphragm is sealed to the periphery of the opening of the second receiving groove. The diaphragm and the inner wall of the second receiving groove enclose a sound cavity.

[0009] In one embodiment, the housing has a raised rib formed around the diaphragm; the speaker housing also includes a sealing ring, which is fitted onto the raised rib and abuts against the periphery of the side of the diaphragm facing away from the second receiving groove.

[0010] In one embodiment, the multimedia speaker box assembly further includes a camera, and the speaker box is provided with a third receiving slot, the camera being engaged with the inner wall of the third receiving slot.

[0011] In one embodiment, the multimedia speaker box assembly further includes a first FPC board, with the camera and the third receiving slot both located on the side of the speaker box facing away from the PCB board; the speaker box has a through hole extending from the side of the speaker box facing away from the PCB board to the side of the speaker box facing the PCB board, and the first FPC board passing through the through hole and electrically connecting the camera and the PCB board; or, the side wall of the speaker box has a limiting groove extending from the side of the speaker box facing away from the PCB board to the side of the speaker box facing the PCB board, and the first FPC board extending along the inner wall of the limiting groove and electrically connecting the camera and the PCB board.

[0012] In one embodiment, the multimedia speaker box assembly includes at least two PCB boards, which are respectively disposed on opposite sides of the speaker box; the multimedia speaker box assembly also includes a second FPC board, which is snapped into and electrically connected to the two PCB boards.

[0013] In one embodiment, the side wall of the speaker box is provided with a fourth receiving groove, and the multimedia speaker box assembly further includes an antenna, which is disposed in the fourth receiving groove and engaged with the inner wall of the fourth receiving groove.

[0014] This utility model also proposes an electronic sound-generating device, which includes a multimedia speaker box assembly as described in any of the above embodiments.

[0015] This utility model proposes a multimedia speaker box assembly for use in electronic sound-generating devices. The electronic sound-generating device has a housing, and the multimedia speaker box assembly includes a speaker box and a PCB board. The speaker box is used to emit sound signals; the PCB board is located within the speaker box, which is situated inside and connected to the housing. In this utility model, the speaker box is fixedly connected to the housing, and electronic components such as the PCB board are mounted on the speaker box. This means the speaker box serves as the mounting base for the electronic components. Compared to the traditional method of using the PCB board as the mounting base, the speaker box structure has higher strength and rigidity, resulting in greater impact resistance and deformation resistance. When the electronic sound-generating device is dropped, it is less prone to damage and deformation, thus improving the device's drop resistance. Furthermore, mounting the PCB board and other electronic components onto the speaker box only requires designing one type of speaker box production mold, eliminating the need for multiple molds for fixing support structures, thereby reducing production costs. Attached Figure Description

[0016] 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.

[0017] Figure 1 An exploded view of an embodiment of the multimedia speaker box assembly provided by this utility model;

[0018] Figure 2 for Figure 1 A structural schematic diagram of the multimedia speaker box assembly hidden behind the PCB board from one perspective;

[0019] Figure 3 for Figure 2 A structural schematic diagram of the multimedia speaker box assembly from another perspective, showing the PCB board hidden in the middle multimedia box assembly.

[0020] Figure 4 for Figure 2 Top view of the multimedia speaker box assembly;

[0021] Figure 5 for Figure 4 Sectional view at point A-A';

[0022] Figure 6 for Figure 4 Sectional view at point B-B';

[0023] Figure 7 for Figure 2 A bottom view of the multimedia speaker box assembly;

[0024] Figure 8 for Figure 7 Sectional view at C-C';

[0025] Figure 9 for Figure 8 Sectional view at point D;

[0026] Figure 10 for Figure 2 An exploded view of the multimedia speaker box assembly;

[0027] Figure 11 for Figure 2 A schematic diagram of the structure of the multimedia speaker box assembly, concealing the camera and FPC board.

[0028] Explanation of icon numbers:

[0029] 100. Multimedia speaker box assembly;

[0030] 1. Speaker box; 11. Box body; 11a. First receiving groove; 11b. Second receiving groove; 11c. Third receiving groove; 11d. Through hole; 11f. Limiting groove; 11g. Fourth receiving groove; 111. Positioning protrusion; 112. Protruding rib; 12. Diaphragm; 13. Sealing ring;

[0031] 2. PCB board; 2a. Positioning holes;

[0032] 3. Camera;

[0033] 41. First FPC board; 42. Second FPC board;

[0034] 5. Antenna.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] 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 scope of protection of the present utility model.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0038] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions 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, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. 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.

[0039] This utility model proposes a multimedia speaker box assembly 100, which can be applied to electronic sound-producing devices such as mobile phones and tablet computers, and the electronic sound-producing devices have a shell.

[0040] Please see Figure 1 In one embodiment of the present invention, the multimedia speaker box assembly 100 includes a speaker box 1 and a PCB board 2. The speaker box 1 is used to emit sound signals. The PCB board 2 is disposed in the speaker box 1, and the speaker box 1 is located inside the outer shell and connected to the outer shell.

[0041] In this embodiment, the speaker box 1 includes a housing 11 and a speaker assembly. The housing 11 is the basic structure of the speaker box 1, used to house and fix the speaker assembly. Its shape is adapted to the internal space of the electronic sound-generating device. It can be made of high-strength engineering plastic or aluminum alloy to ensure structural strength and lightweight, while also possessing good impact resistance and electromagnetic shielding effect, effectively protecting internal components from external impacts and electromagnetic interference. The speaker assembly is installed inside the housing 11 and is the core component that converts electrical energy into sound energy. It generates sound signals through the diaphragm 12, providing audio output for the electronic sound-generating device. The speaker assembly can be designed according to the audio performance requirements of the electronic sound-generating device. For example, a small dynamic speaker assembly can be used in a mobile phone to meet its portability and sound quality requirements; a larger speaker assembly can be used in a tablet computer to provide richer sound effects.

[0042] The speaker assembly mainly comprises a magnetic circuit assembly and a vibration assembly. The magnetic circuit assembly is a crucial component of the speaker assembly, used to generate a magnetic field to provide driving force for the diaphragm 12 of the speaker assembly. The vibration assembly is the sound-generating part of the speaker assembly, mainly including the diaphragm 12 and the voice coil. The design of the speaker assembly can be adjusted with reference to existing technologies, and this application does not limit it in this regard.

[0043] PCB 2 is located on the outer wall of speaker box 1 and is connected to speaker box 1 via a fixing bracket. It integrates circuitry for driving the speaker assembly to produce sound and connection circuitry for other electronic components, used to control the operating state of the speaker assembly and to transmit and process audio signals. The layout and design of PCB 2 are optimized according to the internal space of speaker box 1 and the functional requirements of the electronic sound-producing device to ensure the stability and reliability of the circuitry.

[0044] In this embodiment, the speaker box 1's housing 11 provides installation space and physical support for the PCB board 2. The fixing bracket firmly secures the PCB board 2 inside the housing 11, ensuring that the PCB board 2 will not loosen due to vibration or impact during operation. Simultaneously, the speaker box 1 is connected and fixed to the outer shell, making the entire multimedia speaker box assembly 100 and the outer shell of the electronic sound-generating device form an integral structure, enhancing the overall impact resistance and structural stability of the device. This structural design allows the speaker box 1 to not only serve as a sound signal emitting component but also as a mounting base for electronic components, replacing the traditional method of using the PCB board 2 as the mounting base. This effectively solves the problems of insufficient strength of the PCB board 2, easy damage and deformation, and high production costs due to complex fixing support structures in the prior art. In summary, the multimedia speaker box assembly 100 of this embodiment, by using the speaker box 1 as a mounting base for electronic components and employing high-strength materials and a reasonable structural design, improves the impact resistance and structural stability of the electronic sound-generating device. At the same time, it simplifies the fixing support structure, reduces production costs, and achieves efficient and stable installation and protection of the speaker and related electronic components in the electronic sound-generating device, demonstrating significant technical effects and practical value.

[0045] Further, please refer to Figure 2 and Figure 6 In one embodiment of the present invention, the speaker box 1 is provided with a first receiving groove 11a, and the PCB board 2 is located in the first receiving groove 11a and is detachably connected to the inner wall of the first receiving groove 11a.

[0046] In this embodiment, the speaker box 1 is provided with a first receiving groove 11a, and the PCB board 2 is located in the first receiving groove 11a and detachably connected to the inner wall of the first receiving groove 11a. The purpose of providing the first receiving groove 11a is to limit and protect the PCB board 2, preventing it from shifting or being damaged due to vibration or impact inside the electronic sound-generating device. The first receiving groove 11a is a groove provided on the outer wall of the speaker box 1 for accommodating the PCB board 2. Its shape matches the shape of the PCB board 2, allowing it to fit tightly against the edge of the PCB board 2, ensuring that the PCB board 2 is stably fixed in the groove. The depth and width of the first receiving groove 11a are designed according to the size of the PCB board 2 to ensure that the PCB board 2 can be completely embedded in the groove, while leaving appropriate gaps for easy installation and disassembly. The PCB board 2 is installed in the first receiving groove 11a by a detachable connection. The detachable connection can be achieved by snap-fit ​​connection, screw connection, or other methods. For example, a snap-fit ​​structure is provided on the inner wall of the first receiving groove 11a, and a matching slot is provided on the PCB board 2. The PCB board 2 can be quickly installed and removed through the cooperation of the snap-fit ​​and the slot. This connection method is simple to operate, suitable for automated production, and ensures that the PCB board 2 is stably fixed in the slot. Alternatively, threaded holes can be provided on the inner wall of the first receiving slot 11a, and the PCB board 2 can be fixed in the slot with screws. The screw connection method is strong and reliable, able to withstand greater external impact, and suitable for applications with high stability requirements. The design of the first receiving slot 11a not only provides a limiting function for the PCB board 2, but also plays a protective role. By embedding the PCB board 2 into the slot, it can effectively prevent the PCB board 2 from shifting or being damaged due to vibration or impact inside the electronic sound-generating device.

[0047] Further, please refer to Figure 1 and Figure 2 In one embodiment of this utility model, the inner wall of the receiving groove is provided with a positioning protrusion 111, and the PCB board 2 is provided with a positioning hole 2a, and the positioning protrusion 111 is inserted into the positioning hole 2a.

[0048] In this embodiment, the inner wall of the receiving groove is provided with a positioning protrusion 111, and the PCB board 2 is provided with a positioning hole 2a. The positioning protrusion 111 is inserted into the positioning hole 2a. This design, through the cooperation of the positioning protrusion 111 and the positioning hole 2a, realizes the rapid positioning and fixation of the PCB board 2 in the receiving groove, further improving the convenience and accuracy of installation.

[0049] The positioning protrusion 111 is a raised structure provided on the inner wall of the receiving groove, used to mate with the positioning hole 2a on the PCB board 2. The shape of the positioning protrusion 111 can be circular, square, or other polygonal, and the specific shape is designed according to the shape of the positioning hole 2a to ensure that the two can fit tightly. The height and size of the positioning protrusion 111 are optimized according to the thickness of the PCB board 2 and the depth of the positioning hole 2a to ensure that the PCB board 2 can be accurately inserted and fixed in the receiving groove. The positioning protrusion 111 and the speaker box 1 can be set as an integral molding structure, such as by casting with the same mold. The positioning hole 2a is a hole provided on the PCB board 2, used to mate with the positioning protrusion 111 on the inner wall of the receiving groove. The shape and size of the positioning hole 2a match the positioning protrusion 111, and can be circular, square, or other polygonal. The depth of the positioning hole 2a is designed according to the height of the positioning protrusion 111 to ensure that the two can fit tightly, and can also leave a certain gap to facilitate the insertion and removal of the PCB board 2. More preferably, the edges of the positioning holes 2a can be designed with chamfers or rounded corners to reduce friction during insertion and protect the surface of the PCB board 2 from scratches. Furthermore, the layout of the positioning holes 2a can be optimized according to the size and shape of the PCB board 2 to ensure that the PCB board 2 is stably fixed within the receiving groove.

[0050] This embodiment utilizes the insertion method of the positioning protrusion 111 and the positioning hole 2a to facilitate the installation and removal of the PCB board 2, eliminating the need for additional fixing tools and improving production efficiency. Furthermore, the tight fit between the positioning protrusion 111 and the positioning hole 2a effectively prevents the PCB board 2 from shaking within the receiving groove, ensuring a stable and reliable connection between the PCB board 2 and the speaker unit, thus improving the reliability of the equipment.

[0051] Further, please refer to Figure 1 and Figure 6 In one embodiment of the present invention, the speaker box 1 includes a box body 11 and a diaphragm 12. A second receiving groove 11b is provided on one side wall of the box body 11. The periphery of the diaphragm 12 is sealed to the periphery of the groove opening of the second receiving groove 11b. The diaphragm 12 and the inner wall of the second receiving groove 11b enclose each other to form a sound cavity.

[0052] The main objective of this embodiment is to prevent damage to the electrical components inside the sound cavity from water contact through a sealed design, thereby improving the waterproof performance and reliability of the speaker enclosure 1 assembly. A second receiving groove 11b is provided on one side wall of the enclosure 11. The shape and size of this receiving groove are designed according to the shape and size of the diaphragm 12 to ensure that the diaphragm 12 can fit tightly against the periphery of the groove opening of the second receiving groove 11b. The second receiving groove 11b is a recess on the side wall of the enclosure 11, used for magnetic circuit components and vibration components, etc. The periphery of its groove opening is designed as a sealing structure, enabling a tight fit with the periphery of the diaphragm 12 to achieve a sealed connection. For example, a sealed connection can be achieved by bonding with adhesives such as glue. For thermoplastic diaphragms 12 and enclosure 11, a hot-melt process can be used to fuse the periphery of the diaphragm 12 to the periphery of the groove opening of the second receiving groove 11b to achieve a sealed connection. The periphery of the groove opening of the second receiving groove 11b can be designed with a sealing groove structure for installing a sealing ring 13 or a sealing strip. Preferably, a sealing groove and a sealing ring 13 can be provided around the opening of the second receiving groove 11b. The sealing ring 13 can be made of silicone, rubber, or other elastic materials. The cross-sectional shape of the sealing ring 13 can be circular, rectangular, or other polygonal, and the specific shape is designed according to the sealing requirements. When installing the diaphragm 12, the sealing ring 13 is placed in the sealing groove, and then the periphery of the sealing ring 13 is pressed tightly onto the diaphragm 12 to achieve a seal. Furthermore, a sound outlet hole can be opened in the bottom wall of the sound cavity, and a waterproof and breathable membrane can be installed inside the sound cavity. The waterproof and breathable membrane can be made of polytetrafluoroethylene (PTFE) or other waterproof and breathable materials. The waterproof and breathable membrane installed at the sound outlet hole of the sound cavity can effectively prevent moisture from entering the sound cavity, while allowing sound waves to pass through without affecting the sound output of the speaker. The design of the waterproof and breathable membrane not only improves the waterproof performance of the speaker box 1, but also maintains the air pressure balance inside the sound cavity, preventing the diaphragm 12 from deforming due to air pressure changes.

[0053] By providing a second receiving groove 11b on the housing 11 of the speaker box 1, and sealing the periphery of the diaphragm 12 with the periphery of the groove opening of the second receiving groove 11b, an independent sound cavity is formed, improving waterproof performance. The sealing design effectively prevents moisture from entering the sound cavity and protects the electrical components inside the sound cavity from water damage. In addition, it can also optimize acoustic performance. The traditional method of mounting the speaker on the PCB board 2 limits the size of the speaker. However, in this embodiment, the PCB board 2 is mounted on the housing 11, so the housing 11 can be designed to be larger than that of a traditional speaker. A larger volume sound cavity can be formed between the diaphragm 12 and the inner wall of the second receiving groove 11b, which can store more air, thereby enhancing the air compression efficiency of low-frequency vibration and optimizing the bass effect.

[0054] Further, please refer to Figure 1 and Figure 6In one embodiment of the present invention, a rib 112 is formed on the housing 11, and the rib 112 is arranged around the diaphragm 12; the speaker housing 1 also includes a sealing ring 13, which is sleeved on the rib 112 and abuts against the periphery of the side of the diaphragm 12 facing away from the second receiving groove 11b.

[0055] In this embodiment, the protruding ribs 112 on the housing 11 are arranged around the diaphragm 12, and their shape and size are designed according to the shape of the diaphragm 12 to ensure that the sealing ring 13 can press the diaphragm 12 tightly after being fitted onto the protruding ribs 112. The height and width of the protruding ribs 112 are optimized according to the thickness and elasticity of the sealing ring 13 to ensure that the sealing ring 13 can fit tightly against the periphery of the diaphragm 12 after installation, while providing sufficient support to prevent the sealing ring 13 from shifting due to vibration or external force.

[0056] The sealing ring 13 is made of an elastic material, such as silicone, rubber, or other materials with excellent elasticity and weather resistance. The sealing ring 13 is frame-shaped or annular, with a groove formed on its inner side that matches the protruding rib 112 for fitting onto the rib 112. The outer side of the sealing ring 13 abuts against the periphery of the side of the diaphragm 12 facing away from the second receiving groove 11b, forming a sealing contact. By providing a groove on the sealing ring 13, the contact area between the sealing ring 13 and the protruding rib 112 is increased, making the connection between the sealing ring 13 and the protruding rib 112 more secure and further improving the sealing performance. Furthermore, adhesive can be applied to the groove of the sealing ring 13 and the protruding rib 112 to strengthen the connection between the sealing ring 13 and the protruding rib 112. Alternatively, by controlling the height of the sealing ring 13 and the protruding rib 112, the housing of the electronic sound-generating device can be made to press the sealing ring 13 tightly against the protruding rib 112. This sealing design effectively prevents moisture from entering the sound cavity, protecting the electrical components inside the sound cavity from water damage.

[0057] Further, please refer to Figure 2 and Figure 11 In one embodiment of the present invention, the multimedia speaker box assembly 100 further includes a camera 3, and the speaker box 1 is provided with a third receiving groove 11c, and the camera 3 is engaged with the inner wall of the third receiving groove 11c.

[0058] In this embodiment, the third receiving groove 11c is a recess provided on the speaker box 1 to accommodate the camera 3. Its shape and size are designed according to the shape of the camera 3 to ensure that the camera 3 fits tightly within the groove. The inner wall of the third receiving groove 11c engages and limits the camera 3. For example, in this embodiment, three types of cameras 3 are provided on the speaker box 1, each with different outer contour dimensions. Therefore, the shape and size of each third receiving groove 11c can be adjusted according to the shape of the camera 3. The camera 3 can be quickly installed into the third receiving groove 11c, and when subjected to external impact, it remains stable due to the constraint of the inner wall of the third receiving groove 11c, preventing it from easily loosening or falling off. This snap-fit ​​structure design not only improves the installation firmness of the camera 3 but also simplifies the assembly process. Since the camera 3 is directly installed on the speaker box 1, no additional mounting bracket is required, reducing the number of parts and lowering production costs. Furthermore, since only the mold for the speaker box 1 needs to be designed, instead of molds for multiple brackets, the cost and time of mold development are further saved.

[0059] Compared to the traditional method of soldering the camera 3 onto the PCB board 2, this embodiment uses the third receiving groove 11c to snap and limit the camera 3, which is more robust and drop-resistant. It eliminates the need for additional mounting brackets to reinforce the camera 3, requiring only the design of a mold for the speaker box 1 body 11, and eliminating the need for molds for multiple brackets, thus saving on mold costs.

[0060] Further, please refer to Figures 2 to 5 In one embodiment of this utility model, the multimedia speaker box assembly 100 further includes a first FPC board 41, and the camera 3 and the third receiving groove 11c are both disposed on the side of the speaker box 1 facing away from the PCB board 2; the speaker box 1 is provided with a through hole 11d, which extends from the side of the speaker box 1 facing away from the PCB board 2 to the side of the speaker box 1 facing the PCB board 2, and the first FPC board 41 passes through the through hole 11d and is electrically connected to the camera 3 and the PCB board 2; or, the side wall of the speaker box 1 is provided with a limiting groove 11f, which extends from the side of the speaker box 1 facing away from the PCB board 2 to the side of the speaker box 1 facing the PCB board 2, and the first FPC board 41 extends along the inner wall of the limiting groove 11f and is electrically connected to the camera 3 and the PCB board 2.

[0061] In this embodiment, the camera 3 is mounted on the side of the speaker box 1 facing away from the PCB board 2 and is fixed by the third receiving groove 11c. To achieve electrical connection between the camera 3 and the PCB board 2, a through hole 11d or a limiting groove 11f is designed on the speaker box 1. In this embodiment, three cameras 3 are provided, such as... Figure 2As shown, the FPC board of one camera 3 is disposed within the limiting groove 11f, and the FPC boards of the other two cameras 3 are disposed within the through holes 11d. In the through hole 11d design, the through hole 11d penetrates through the speaker box 1, and the first FPC board 41 passes through the through hole 11d, connecting one end to the camera 3 and the other end to the PCB board 2, thereby achieving electrical connection. In the limiting groove 11f design, the limiting groove 11f extends along the surface of the speaker box 1 and extends from the side of the speaker box 1 facing away from the PCB board 2 to the side facing the PCB board 2. The first FPC board 41 is arranged along the inner wall of the limiting groove 11f and connects the camera 3 to the PCB board 2.

[0062] This design achieves electrical connection between the camera 3 and the PCB board 2 via the first FPC board 41, avoiding the complexity and reliability issues associated with traditional soldering methods. Simultaneously, the through-hole 11d or limiting groove 11f provides a stable mounting path for the first FPC board 41, reducing connection loosening due to vibration or external forces and enhancing the device's drop resistance. Furthermore, this design optimizes spatial layout, allowing for better integration of the camera 3 and speaker box 1, reducing internal space occupation and improving the overall compactness of the device.

[0063] Please see Figures 7 to 9 In one embodiment of the present invention, the multimedia speaker box assembly 100 includes at least two PCB boards 2, which are respectively disposed on opposite sides of the speaker box 1; the multimedia speaker box assembly 100 also includes a second FPC board 42, which is snapped into the speaker box 1 and electrically connected to the two PCB boards 2.

[0064] It's important to clarify that a PCB (Printed Circuit Board) is a board used for mechanical support and circuit connection of electronic components. Electrical connections between electronic components are achieved by printing conductive patterns on a rigid insulating substrate. An FPC (Flexible Printed Circuit), on the other hand, is a flexible circuit board that can be bent and folded in three-dimensional space, making it suitable for applications requiring flexible layouts and compact spaces.

[0065] In this embodiment, to meet the layout requirements of different functional modules in the electronic sound-generating device, at least two PCB boards 2 are installed on each side of the speaker box 1. These PCB boards 2 respectively carry different electronic components, such as audio processing circuits, power management circuits, or other functional modules. To achieve electrical connection between these PCB boards 2, the multimedia speaker box assembly 100 also includes a second FPC board 42. The second FPC board 42 is a flexible printed circuit board with good flexibility and bendability, which can adapt to the structural design of the speaker box 1. Through this connection method, signal transmission and power supply can be realized between the two PCB boards 2, thereby enabling collaborative work between different functional modules. For example, the PCB board 2 containing the audio processing circuit can send audio signals to the speaker unit through the second FPC board 42, while the PCB board 2 containing the power management circuit can provide power to the entire assembly through the second FPC board 42.

[0066] The second FPC board 42 is fixed to the speaker box 1 by a snap-fit ​​mechanism. Specifically, the speaker box 1 has a snap-fit ​​structure, such as a slot or a buckle, and the second FPC board 42 has a matching protrusion or another buckle, so that the second FPC board 42 can be firmly fixed to the speaker box 1 and remain stable. Figure 9 As shown, a latching protrusion is provided on one side of the end of the second FPC board 42, and a latching groove is provided on the body 11 of the speaker box 1. The latching protrusion extends into the latching groove and engages with the inner wall of the groove. The second FPC board 42 is fixed to the speaker box 1 by the latching method, which improves the stability and reliability of the component. At the same time, due to the flexibility of the second FPC board 42, it can absorb vibration and impact to a certain extent, reduce the loosening of the connection caused by external force, and thus enhance the impact resistance of the entire component.

[0067] Further, please refer to Figure 10 In one embodiment of the present invention, the side wall of the speaker box 1 is provided with a fourth receiving groove 11g, and the multimedia speaker box assembly 100 also includes an antenna 5, which is disposed in the fourth receiving groove 11g and engaged with the inner wall of the fourth receiving groove 11g.

[0068] In this embodiment, the antenna 5 is integrated into the speaker box 1. Compared with the traditional antenna 5 design based on the PCB board 2, the antenna 5 design based on the speaker box 1 in this embodiment has significant advantages. The speaker box 1 is usually made of high-strength materials, with high structural strength and rigidity, which can provide more stable support for the antenna 5 and reduce the risk of the antenna 5 loosening or being damaged due to equipment vibration or external impact. The PCB board 2 itself is relatively fragile and is easily deformed or damaged when subjected to external impact, thus affecting the performance of the antenna 5. In terms of cost, traditional antenna installation requires the additional design and manufacture of various mounting brackets and fixing structures, increasing mold development costs. In this embodiment, the antenna 5 is directly mounted on the speaker box 1, requiring only the addition of a fourth receiving slot 11g in the mold of the speaker box 1, eliminating the need for additional molds for various brackets, thereby reducing mold development costs.

[0069] Furthermore, the fourth receiving slot 11g is located on the side wall of the speaker box 1, which is typically located at the edge of the device. This allows the antenna 5 to achieve better signal reception and transmission while reducing signal interference. The fourth receiving slot 11g provides a dedicated mounting position for the antenna 5, securing it in place via a snap-fit ​​mechanism. This ensures the antenna 5 remains stable under external impact, preventing it from easily loosening or falling off, thus enhancing its drop resistance.

[0070] Antenna 5 can be selected from different types according to specific application requirements. For example, a patch antenna can be used, which is small in size, has good radiation performance, and is easy to integrate, making it suitable for mobile devices; a wire antenna can also be used, which has a simple structure and low cost, making it suitable for scenarios where the signal coverage requirement is not high; or a flexible antenna can be used, which can adapt to the shape and space constraints of the speaker box 1, while having good flexibility and impact resistance.

[0071] This utility model also proposes an electronic sound-generating device, which includes a multimedia speaker box assembly 100 as described in any of the above embodiments. Since this electronic sound-generating device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0072] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and 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 multimedia speaker box assembly, used in an electronic sound-generating device, the electronic sound-generating device having a housing, characterized in that, The multimedia speaker box assembly includes: A speaker box (1), said speaker box (1) being used to emit sound signals; and PCB board (2), the PCB board (2) is disposed in the speaker box (1), the speaker box (1) is located inside the outer shell and is connected to the outer shell.

2. The multimedia speaker box assembly as described in claim 1, characterized in that, The speaker box (1) is provided with a first receiving groove (11a), and the PCB board (2) is located in the first receiving groove (11a) and is detachably connected to the inner wall of the first receiving groove (11a).

3. The multimedia speaker box assembly as described in claim 2, characterized in that, The inner wall of the receiving groove is provided with a positioning protrusion (111), and the PCB board (2) is provided with a positioning hole (2a). The positioning protrusion (111) is inserted into the positioning hole (2a).

4. The multimedia speaker box assembly as described in claim 1, characterized in that, The speaker box (1) includes a box body (11) and a diaphragm (12). A second receiving groove (11b) is provided on one side wall of the box body (11). The periphery of the diaphragm (12) is sealed to the periphery of the groove opening of the second receiving groove (11b). The diaphragm (12) and the inner wall of the second receiving groove (11b) enclose a sound cavity.

5. The multimedia speaker box assembly as described in claim 4, characterized in that, The housing (11) has a rib (112) formed on it, and the rib (112) is arranged around the diaphragm (12); The speaker box (1) also includes a sealing ring (13), which is fitted onto the rib (112) and abuts against the periphery of the side of the diaphragm (12) facing away from the second receiving groove (11b).

6. The multimedia speaker box assembly as described in claim 1, characterized in that, The multimedia speaker box assembly also includes a camera (3), and the speaker box (1) is provided with a third receiving groove (11c), and the camera (3) is engaged with the inner wall of the third receiving groove (11c).

7. The multimedia speaker box assembly as described in claim 6, characterized in that, The multimedia speaker box assembly also includes a first FPC board (41), and the camera (3) and the third receiving slot (11c) are both located on the side of the speaker box (1) facing away from the PCB board (2); The speaker box (1) is provided with a through hole (11d), which extends from the side of the speaker box (1) facing away from the PCB board (2) to the side of the speaker box (1) facing the PCB board (2). The first FPC board (41) passes through the through hole (11d) and is electrically connected to the camera (3) and the PCB board (2). Alternatively, the side wall of the speaker box (1) is provided with a limiting groove (11f), which extends from the side of the speaker box (1) away from the PCB board (2) to the side of the speaker box (1) facing the PCB board (2). The first FPC board (41) extends along the inner wall of the limiting groove (11f) and is electrically connected to the camera (3) and the PCB board (2).

8. The multimedia speaker box assembly as claimed in claim 1, characterized in that, The multimedia speaker box assembly includes at least two PCB boards (2), and the at least two PCB boards (2) are respectively disposed on opposite sides of the speaker box (1); The multimedia speaker box assembly also includes a second FPC board (42), which is snapped into the speaker box (1) and electrically connected to the two PCB boards (2).

9. The multimedia speaker box assembly as claimed in claim 1, characterized in that, The side wall of the speaker box (1) is provided with a fourth receiving groove (11g). The multimedia speaker box assembly also includes an antenna (5), which is located in the fourth receiving groove (11g) and is engaged with the inner wall of the fourth receiving groove (11g).

10. An electronic sound-generating device, characterized in that, The electronic sound-generating device includes a multimedia speaker box assembly as described in any one of claims 1 to 9.

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