Loudspeaker device

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaking device, which comprises a loudspeaker module and a loudspeaker, a containing cavity is divided into a first cavity and a second cavity by the loudspeaker, the loudspeaker module comprises a lower shell and an upper shell which are connected, the second cavity is provided with a phase inversion channel, and the lower shell is provided with a loudspeaker. The loudspeaker module comprises an upper shell and a lower shell, the lower shell is provided with a phase inversion channel, the phase inversion channel is shared with the upper shell and / or the lower shell, one end of the phase inversion channel is communicated with the second cavity, the other end of the phase inversion channel is communicated with the outside, and the lower shell is provided with a sound outlet communicated with the first cavity. Therefore, the space of the accommodating chamber occupied by the inverter tube in the traditional design is released, more abundant installation positions are provided for other key components, and the low-frequency response of the loudspeaker system can be improved.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a loudspeaker device. Background Technology

[0002] As a key component in audio equipment, the performance of the speaker module directly affects the quality of audio output and user experience. In the pursuit of higher sound quality, enhancing low-frequency response and reducing low-frequency distortion have become key focuses in speaker system design. To achieve this goal, bass-reflex designs are widely used in speaker modules.

[0003] However, the application of bass-reflex structures in speaker module design presents problems in the low-frequency response. Due to the size limitations of miniature speakers, the internal cavity space of their speaker modules is extremely limited. If a traditional bass-reflex tube is directly placed inside the cavity, it will not only occupy too much cavity volume, affecting the overall structural design and manufacturing cost of the speaker, but increasing the tube length or diameter will further occupy more rear cavity space, which may weaken the bass-reflex structure's improvement effect on low-frequency response, and even introduce the risk of adverse acoustic interference and distortion. Utility Model Content

[0004] The purpose of this invention is to provide a loudspeaker device to solve the problems of reduced low-frequency response and increased low-frequency distortion in existing technologies.

[0005] The technical solution of this utility model is: a sound-speaking device, including a loudspeaker module and a loudspeaker, wherein the receiving chamber is divided into a first chamber and a second chamber by the loudspeaker, the loudspeaker module includes a connected lower shell and an upper shell, the second chamber is provided with a phase inversion channel, the phase inversion channel is shared with the upper shell and / or the lower shell, one end of the phase inversion channel is connected to the second chamber, and the other end is connected to the outside, and the lower shell is provided with a sound outlet connected to the first chamber.

[0006] Preferably, the upper shell includes a first cover plate, a second cover plate, and a third cover plate that are fixedly connected from top to bottom. The second cover plate has a guide groove, and the third cover plate has a through hole that connects the second chamber and one end of the guide groove. The first cover plate, the second cover plate, and the third cover plate are stacked to form the phase inversion channel.

[0007] Preferably, the upper shell and / or the lower shell are provided with a surrounding member, which is semi-enclosed and fixedly connected to the inner wall of the upper shell and / or the lower shell, and the surrounding member and the upper shell and / or the lower shell form the phase inversion channel.

[0008] Preferably, the upper shell and / or the lower shell extend two side walls toward the second cavity, and both sides are fixedly connected to the enclosure member, which together with the side walls to form a phase inversion channel.

[0009] Preferably, the phase inversion channel is a closed tubular structure, and the cross-section of the phase inversion channel is polygonal.

[0010] Preferably, one end of the guide groove is inside the second cover plate and communicates with the second chamber through the through hole, and the other end of the guide groove extends to the edge of the second cover plate.

[0011] Preferably, the sound outlet is located on the side wall of the lower shell, and the outlet of the phase inversion channel is located on the side wall of the upper shell.

[0012] Preferably, the speaker outlet includes a first sound outlet and a second sound outlet, the first sound outlet and the second sound outlet are respectively disposed on opposite side walls of the speaker, one of the first sound outlet and the second sound outlet communicates with the sound outlet, and the other communicates with the phase inversion channel.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] (1) The internal structure of the loudspeaker module allows the bass reflex structure to be built into the loudspeaker module, which significantly optimizes the space utilization efficiency and allows the space occupied by the bass reflex tube or bass reflex hole in the traditional design to be completely released. This not only provides more ample installation space for other key components, but also improves the low frequency response of the loudspeaker system.

[0015] (2) Each speaker port is connected to the outside world through an independent phase-reversing structure, which effectively reduces low-frequency distortion. In traditional designs, low-frequency sound waves often interfere with each other. However, by configuring an independent phase-reversing path for each speaker port, these interferences can be effectively avoided, ensuring that each low-frequency note can be conveyed to the listener in its original pure state, which greatly improves the clarity and fidelity of the audio output. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of a loudspeaker device according to the present invention;

[0018] Figure 2 This is an exploded structural diagram of the lower shell and speaker described in this utility model;

[0019] Figure 3 This is an exploded view of the speaker module described in this utility model;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the upper shell described in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Speaker module; 11. Housing chamber; 111. First chamber; 112. Second chamber; 12. Bass reflex structure; 121. Sound outlet; 122. Bass reflex channel; 13. Upper shell; 131. First cover plate; 132. Second cover plate; 133. Third cover plate; 134. Guide groove; 135. Through hole; 14. Lower shell; 2. Speaker; 21. Sound outlet; 211. First sound outlet; 212. Second sound outlet. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0026] like Figure 1 and Figure 2 As shown, a loudspeaker device includes a loudspeaker 2 and a loudspeaker module 1. The loudspeaker module 1 includes a receiving chamber 11 and at least two phase inversion structures 12. Each phase inversion structure 12 is connected to the receiving chamber 11. The loudspeaker 2 is fixed in the receiving chamber 11. The loudspeaker 2 includes at least two sound-generating ports 21. These sound-generating ports 21 are evenly distributed on the outer periphery of the loudspeaker 2. The loudspeaker 2 transmits sound to the outside through the phase inversion structures 12.

[0027] When the loudspeaker 2 is fixed inside the receiving chamber 11, the loudspeaker 2 blocks the connection between the phase inversion structures 12, and the speaker port 21 is connected to the corresponding sound wave transmission channel. That is, each speaker port 21 is connected to at least one phase inversion structure 12, and the phase inversion structures 12 connected to different speaker ports 21 are independent of each other. This physical isolation effectively avoids mutual interference between sound waves emitted from different speaker ports 21 during transmission, significantly improving sound quality and allowing listeners to hear clearer and more natural sound. Preferably, each speaker port 21 is connected to one phase inversion structure 12 to ensure accurate sound propagation.

[0028] In this embodiment, the speaker opening 21 includes a first sound outlet 211 and a second sound outlet 212, which are respectively located on opposite sides of the speaker 2 to generate sound from two channels. Preferably, the first sound outlet 211 is connected to multiple phase inversion structures 12, and the second sound outlet 212 is connected to multiple phase inversion structures 12; more preferably, the first sound outlet 211 and the second sound outlet 212 are each connected to one phase inversion structure 12. In this embodiment, the phase inversion structure 12 includes a sound outlet 121 and a phase inversion channel 122. One of the first sound outlet 211 and the second sound outlet 212 is connected to the sound outlet 121, and the other is connected to the phase inversion channel 122. More preferably, the first sound outlet 211 is connected to the sound outlet 121, and the second sound outlet 212 is connected to the phase inversion channel 122. In this embodiment, the phase inversion channel 122 is a U-shaped channel. In other embodiments, the phase inversion channel 122 can be an S-shaped channel or an L-shaped channel.

[0029] In other variations, the loudspeaker 2 has four sound outlets 21, and correspondingly, the phase-reflecting structure 12 has four outlets 21. The four sound outlets 21 are arranged in a circumferential array around the outer wall of the loudspeaker 2, and the four sound outlets 21 are connected to the four sound wave transmission channels one by one.

[0030] The accommodating chamber 11 includes a first chamber 111 and a second chamber 112 that are interconnected. The sound outlet 121 is connected to the first chamber 111, and the bass reflex channel 122 is connected to the second chamber 112. Specifically, the speaker 2 is fixedly connected inside the first chamber 111. The side of the speaker 2 is interference-fitted with the inner wall of the first chamber 111, meaning the inner wall of the first chamber 111 restricts the side wall of the speaker 2, preventing loosening between the speaker 2 and the speaker module 1. In this state, the first sound outlet 211 is located inside the first chamber 111, i.e., the first sound outlet 211 is connected to the sound outlet 121. The second sound outlet 212 is located at the connection point between the first chamber 111 and the second chamber 112. The sound waves generated by the second sound outlet 212 are transmitted to the bass reflex channel 122 through the second chamber 112. The first sound outlet 211 and the second sound outlet 212 generate two independent channels, preventing interference between the two channels.

[0031] like Figure 3 As shown, the speaker module 1 includes an upper shell 13 and a lower shell 14. The lower shell 14 has an opening at the top in the vertical direction and is closed at the bottom in the vertical direction, with a receiving chamber 11 housed inside. The upper shell 13 is fixedly connected to the opening at the top of the lower shell 14. In this embodiment, the upper shell 13 is fixedly connected to the lower shell 14 by adhesive bonding. In other embodiments, bolts or welding can be used. The sound outlet 121 is opened on the side wall of the lower shell 14, and the bass reflex channel 122 is opened inside the upper shell 13. Specifically, one end of the bass reflex channel 122 connects to the second chamber 112 from the bottom of the upper shell 13, and the other end of the bass reflex channel 122 is located on the outer side wall of the upper shell 13.

[0032] like Figure 4 As shown, the upper shell 13 includes a first cover plate 131, a second cover plate 132, and a third cover plate 133, which are fixedly connected from top to bottom. The third cover plate 133 is fixedly connected to the opening of the lower shell 14 to close the top of the lower shell 14. The first cover plate 131 is constructed as a complete rectangular plate. The second cover plate 132 has a guide groove 134. Specifically, the guide groove 134 is open in the vertical direction and has a strip-shaped structure. One end of the guide groove 134 is located inside the second cover plate 132, and the other end of the guide groove 134 extends to the edge of the second cover plate 132. The first cover plate 131, the second cover plate 132, and the third cover plate 133 are stacked to form a phase inversion channel 122. That is, the third cover plate 133 and the first cover plate 131 clamp the second cover plate 132 so that the guide groove 134 forms a phase inversion channel 122. The third cover plate 133 has a through hole 135 connecting the second chamber 112 and the phase inversion channel 122, so that the sound waves from the second chamber 112 can only be emitted from the phase inversion channel 122. The above-mentioned layered structure improves the assembly efficiency of the speaker module 1 and reduces the assembly difficulty.

[0033] In other embodiments, the upper shell 13 and / or the lower shell 14 are provided with a surrounding member, which is semi-enclosed and fixedly connected to the inner wall of the upper shell 13 and / or the lower shell 14. The surrounding member and the upper shell 13 and / or the lower shell 14 constitute the phase inversion channel 122. Specifically, the surrounding member is fixedly connected to the inner sidewall of the upper shell 13; preferably, the surrounding member is fixedly connected to one inner sidewall of the upper shell 13 so that the surrounding member and the upper shell 13 share a sidewall; more preferably, the surrounding member and the upper shell 13 are respectively fixedly connected to two inner sidewalls so that two sidewalls are shared.

[0034] Preferably, the upper shell 13 and / or the lower shell 14 extend two sidewalls toward the second cavity, both sides being fixedly connected to a retaining member, which, together with the sidewalls, forms a phase inversion channel 122. The structure forming the phase inversion channel 122 can be formed with the upper shell 13, with the lower shell 14, or at the connection point between the upper shell 13 and the lower shell 14. In this embodiment, it is exemplarily shown that the phase inversion channel 122 is formed on the upper shell 13.

[0035] Preferably, the outlet of the sound outlet 121 and the outlet of the bass reflex channel 122 are both located on the side wall of the speaker module 1. More preferably, the outlet of the sound outlet 121 and the outlet of the bass reflex channel 122 are both oriented in the same direction.

[0036] Implementation Principle: The loudspeaker 2 generates two sound waves through a first sound outlet 211 and a second sound outlet 212. The sound wave generated by the first sound outlet 211 enters the first chamber 111 and is transmitted to the outside through the sound outlet 121. The sound wave generated by the second sound outlet 212 enters the second chamber 112 and is transmitted to the outside through the bass reflex channel 122. The sound waves generated by the first sound outlet 211 and the second sound outlet 212 are isolated in two independent spaces, thereby avoiding interference between different sound waves. The bass reflex channel is built into the upper shell 13 to reduce its occupancy of the second chamber 112, improve the low-frequency response of the loudspeaker system, and reduce low-frequency distortion.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A loudspeaker device, comprising a loudspeaker module (1) and a loudspeaker (2), the loudspeaker module (1) comprising a receiving chamber (11), the receiving chamber (11) being divided by the loudspeaker into a first chamber (111) and a second chamber (112), the loudspeaker module (1) comprising a lower shell (14) and an upper shell (13) connected together. Its features are, The second chamber (112) is provided with a phase inversion channel (122), which is shared with the upper shell (13) and / or the lower shell (14). One end of the phase inversion channel (122) is connected to the second chamber (112), and the other end is connected to the outside. The lower shell (14) is provided with a sound outlet (121) that is connected to the first chamber (111).

2. The loudspeaker device according to claim 1, characterized in that: The upper shell (13) and / or the lower shell (14) are provided with a surrounding member, which is fixedly connected to the inner wall of the upper shell (13) and / or the lower shell (14) in a semi-enclosed manner. The surrounding member and the upper shell (13) and / or the lower shell (14) constitute the phase inversion channel (122).

3. A loudspeaker device according to claim 2, characterized in that: The upper shell (13) and / or the lower shell (14) extend two side walls toward the second chamber, both of which are fixedly connected to the enclosure member, and the enclosure member and the side walls enclose to form a phase inversion channel (122).

4. A loudspeaker device according to claim 2, characterized in that: The upper shell (13) includes a first cover plate (131), a second cover plate (132) and a third cover plate (133) fixedly connected from top to bottom. The second cover plate (132) has a guide groove (134), and the third cover plate (133) has a through hole (135) connecting the second chamber (112) and one end of the guide groove (134). The first cover plate (131), the second cover plate (132) and the third cover plate (133) are stacked to form the phase inversion channel (122).

5. A loudspeaker device according to claim 1, characterized in that: The phase inversion channel (122) is a closed tubular structure, and the cross-section of the phase inversion channel (122) is polygonal.

6. A loudspeaker device according to claim 4, characterized in that: One end of the guide groove (134) is inside the second cover plate (132) and communicates with the second chamber (112) through the through hole (135), and the other end of the guide groove (134) extends to the edge of the second cover plate (132).

7. A loudspeaker device according to claim 1, characterized in that: The sound outlet (121) is located on the side wall of the lower shell (14), and the outlet of the phase inversion channel (122) is located on the side wall of the upper shell (13).

8. A loudspeaker device according to claim 1, characterized in that: The loudspeaker module (1) includes a lower shell (14) with a built-in receiving chamber (11). The loudspeaker (2) includes at least two sound-generating ports (21). Each sound-generating port (21) includes a first sound outlet (211) and a second sound outlet (212). The first sound outlet (211) and the second sound outlet (212) are respectively located on opposite side walls of the loudspeaker (2). One of the first sound outlet (211) and the second sound outlet (212) communicates with the sound outlet (121), and the other communicates with the phase inversion channel (122).

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