Loudspeaker shell and loudspeaker

Abstract

The utility model belongs to the technical field of loudspeakers, and discloses a loudspeaker shell and a loudspeaker. The loudspeaker shell comprises an outer shell and a sound guide structure which are integrally formed. The shell is provided with an assembly cavity and a mounting port, the assembly cavity is communicated with the outside through the mounting port, and the sound production unit can extend into the assembly cavity through the mounting port; the sound guide structure is provided with a front cavity, a sound outlet and an operation opening, the front cavity is communicated with the outside through the sound outlet and is communicated with the assembly cavity through the operation opening, and when the sound production unit is installed in the assembly cavity, the operation opening is sealed and covered. The loudspeaker adopts the loudspeaker shell, the structure is simple, the assembling process difficulty and the manufacturing cost are reduced, the production efficiency is improved, and the loudspeaker has good practicability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker housing and a loudspeaker. Background Art

[0002] A loudspeaker, commonly known as a "horn," is a common electroacoustic transducer that produces sound by converting electrical signals into acoustic signals. Currently, commonly used loudspeakers consist of a single unit and a housing. The housing includes an upper cover and a lower cover. The single unit is the speaker's sound-producing unit, and the upper and lower covers enclose the outside of the single unit, with the single unit partially exposed. However, when assembling the above-mentioned loudspeaker, a special sealing design is required for the connection between the upper and lower covers, which is cumbersome and complex in structure. At the same time, when producing the housing, the upper and lower covers need to be produced separately, which will affect the progress of large-scale mass production of loudspeakers. Utility Model Content

[0003] The purpose of the utility model is to provide a speaker housing and a speaker, which can reduce the difficulty of the assembly process and improve the production efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A speaker housing, comprising an integrally formed outer shell and a sound guide structure;

[0006] The housing is provided with an assembly cavity and an installation opening, the assembly cavity is communicated with the outside through the installation opening, and the sound unit can extend into the assembly cavity through the installation opening;

[0007] The sound guide structure is provided with a front cavity, a sound outlet and a working port. The front cavity is connected to the outside through the sound outlet and is connected to the assembly cavity through the working port. When the sound unit is installed in the assembly cavity, the working port is covered.

[0008] Preferably, the sound-conducting structure includes a connected tube trough body and a surrounding wall, the tube trough body and the surrounding wall are both connected to the outer shell, a sound-conducting cavity is formed between the tube trough body and the outer shell, the sound-conducting cavity is connected to the outside through the sound outlet, a sound-gathering cavity connected to the sound-conducting cavity is formed between the surrounding wall and the outer shell, the sound-gathering cavity is connected to the assembly cavity through the working port, and the sound-conducting cavity and the sound-gathering cavity constitute the front cavity.

[0009] Preferably, the working port is arranged opposite to the installation port.

[0010] Preferably, the opening directions of the working port and the installation port are arranged at an angle.

[0011] Preferably, along the direction from the working port to the sound outlet, the cross-sectional area of ​​the sound guiding cavity is smaller than the cross-sectional area of ​​the sound collecting cavity.

[0012] Preferably, a side block is provided on the surrounding wall around the working opening, and the sound generating unit can be snapped into the side block.

[0013] Preferably, the sound guide structure is arranged in the shell, the sound outlet is arranged on the outer wall of the shell, and the assembly cavity is formed between the sound guide structure and the inner wall of the shell.

[0014] The loudspeaker comprises a sound-generating unit and the loudspeaker housing. The sound-generating unit is installed in the assembly cavity and covers the working port.

[0015] Preferably, the sound-emitting unit fills the assembly cavity; or, a rear cavity is formed between the sound-emitting unit and the inner wall of the assembly cavity.

[0016] Preferably, a sealing rubber ring is sandwiched between the sound guide structure and the sound-emitting unit.

[0017] The beneficial effects of the present invention are:

[0018] The loudspeaker shell provided by the present invention has a sound-emitting unit installed in the assembly cavity of the shell and covers the working opening of the sound-conducting structure. When the sound-emitting unit vibrates and produces sound, the sound waves are transmitted to the outside through the front cavity and the sound outlet in sequence, thereby causing the loudspeaker to produce sound. Since the sound-conducting structure and the shell are integrally formed, and the shell is provided with an installation opening for the sound-emitting unit to extend into, the loudspeaker can be assembled by installing the sound-emitting unit in the assembly cavity through the installation opening. The structure is simple and the installation is convenient. The assembly production can be completed without connecting multiple parts, thereby greatly improving the production efficiency of the loudspeaker and reducing the manufacturing cost of the loudspeaker.

[0019] The loudspeaker provided by the utility model includes a sound-emitting unit and adopts the loudspeaker housing mentioned above, has a simple structure, reduces the difficulty of the assembly process, improves the production efficiency, and has good practicality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the housing provided in the first embodiment of the present invention;

[0021] Figure 2 This is a schematic structural diagram of the housing provided by the first embodiment of the present invention after being cut apart along the height direction;

[0022] Figure 3 This is a cross-sectional view of the loudspeaker provided in Example 1 of the present utility model;

[0023] Figure 4 This is a longitudinal sectional view of the loudspeaker provided in Example 1 of the present utility model;

[0024] Figure 5 Schematic diagrams of transverse and longitudinal sections of various deformed structures of the loudspeaker provided in the first embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of the housing provided in the second embodiment of the present invention;

[0026] Figure 7 This is a schematic structural diagram of the housing provided by the second embodiment of the present invention after being cut apart along the height direction;

[0027] Figure 8 This is a cross-sectional view of the loudspeaker provided in Example 2 of the present utility model;

[0028] Figure 9 This is a longitudinal sectional view of the loudspeaker provided in the second embodiment of the present utility model;

[0029] Figure 10 Schematic diagrams of transverse and longitudinal sections of various deformed structures of the loudspeaker provided in the second embodiment of the present invention.

[0030] In the picture:

[0031] 100-sound unit;

[0032] 1-housing; 11-assembly cavity; 111-rear cavity; 12-installation port;

[0033] 2-sound-guiding structure; 21-front cavity; 22-sound outlet; 23-tube groove body; 231-sound-guiding cavity; 24-surrounding wall; 241-sound-gathering cavity; 25-side baffle; 26-baffle. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] Example 1

[0039] like Figures 1 to 4 As shown, this embodiment provides a speaker housing, which includes an integrally formed shell 1 and a sound guide structure 2. The shell 1 is provided with an assembly cavity 11 and an installation port 12. The assembly cavity 11 is connected to the outside through the installation port 12, and the sound unit 100 can extend into the assembly cavity 11 through the installation port 12; the sound guide structure 2 is provided with a front cavity 21, a sound outlet 22 and an operating port. The front cavity 21 is connected to the outside through the sound outlet 22, and is connected to the assembly cavity 11 through the operating port. When the sound unit 100 is installed in the assembly cavity 11, the operating port is sealed. In this embodiment, the shell 1 has an appearance of a rectangular parallelepiped, and the sound unit 100 is installed in the assembly cavity 11 of the shell 1 and covers the working port of the sound guide structure 2. When the sound unit 100 vibrates and makes sound, the sound waves will be transmitted to the outside through the front cavity 21 and the sound outlet 22 in turn, thereby making the speaker make sound; since the sound guide structure 2 and the shell 1 are integrally formed, and the shell 1 is provided with a mounting port 12 for the sound unit 100 to extend into, the assembly of the speaker can be completed by installing the sound unit 100 in the assembly cavity 11 through the mounting port 12. The structure is simple and the installation is convenient. There is no need to connect multiple parts to complete the assembly production, which greatly improves the production efficiency of the speaker and reduces the manufacturing cost of the speaker.

[0040] Further, if Figures 2 to 4As shown, the sound-guiding structure 2 includes a tube trough body 23 and a surrounding wall 24 that are connected to each other. The tube trough body 23 and the surrounding wall 24 are both connected to the outer shell 1. A sound-guiding cavity 231 is formed between the tube trough body 23 and the outer shell 1. The sound-guiding cavity 231 is connected to the outside through the sound outlet 22. A sound-gathering cavity 241 connected to the sound-guiding cavity 231 is formed between the surrounding wall 24 and the outer shell 1. The sound-gathering cavity 241 is connected to the assembly cavity 11 through the working port. The sound-guiding cavity 231 and the sound-gathering cavity 241 constitute the front cavity 21. In this embodiment, the tube trough body 23 and the surrounding wall 24 are connected as an integral structure. The surrounding wall 24 is a cylindrical structure surrounded on four sides. A sound-gathering cavity 241 is formed between the surrounding wall 24 and the outer shell 1, and the sound-gathering cavity 241 is connected with the assembly cavity 11 through the working port; the tube trough body 23 is a three-sided open structure. A sound-guiding cavity 231 is formed between the tube trough body 23 and the outer shell 1, and one end of the sound-guiding cavity 231 is connected with the outside through the sound outlet 22, and the other end of the sound-guiding cavity 231 is connected with the sound-gathering cavity 241; specifically, when the sound unit 100 is installed, the sound unit 100 blocks the working port, and the sound waves will be transmitted unidirectionally through the sound-gathering cavity 241 to the sound-guiding cavity 231, and finally transmitted through the sound outlet 22.

[0041] Specifically, if Figure 2 As shown, the working opening is arranged opposite the mounting opening 12. In this embodiment, the housing 1 has a rectangular appearance. One of the side walls of the housing 1 is a sound outlet wall, which is provided with a sound outlet 22. A wall adjacent to the sound outlet wall is a mounting wall, which is perpendicular to the sound outlet wall. The mounting opening 12 is provided on the mounting wall. The working opening of the sound guide structure 2 is arranged opposite the mounting opening 12 and is located above the mounting opening 12. When installing the sound unit 100, the sound unit 100 is inserted upward into the assembly cavity 11 through the mounting opening 12 at the bottom, and the sound unit 100 is vertically abutted against the surrounding wall 24, thereby sealing the working opening and completing the assembly of the speaker.

[0042] Specifically, if Figure 2 and Figure 3 As shown, along the direction from the working port to the sound outlet 22, the cross-sectional area of ​​the sound guide cavity 231 is smaller than the cross-sectional area of ​​the sound focusing cavity 241. In this embodiment, the sound waves generated by the vibration of the sound-emitting unit 100 pass through the sound focusing cavity 241 and the sound guide cavity 231 in sequence from the working port, and ultimately out through the sound outlet 22. Along this direction, the cross-sectional area of ​​the sound guide cavity 231 is smaller than that of the sound focusing cavity 241, which helps to gather the sound waves before they propagate outward, making the emitted sound brighter.

[0043] Specifically, if Figure 4As shown, the surrounding wall 24 is provided with a side stop 25 surrounding the working opening, and the sound unit 100 can be snapped into the side stop 25. In this embodiment, the side stop 25 is provided at the end of the surrounding wall 24 near the sound unit 100. The side stop 25 is arranged around the working opening, and the side stop 25 and the end of the surrounding wall 24 form a slot, and the sound unit 100 can be snapped into the slot and abut against the side stop 25.

[0044] Further, if Figures 1 to 4 As shown, the sound guide structure 2 is disposed in the housing 1, and the sound outlet 22 is disposed on the outer wall of the housing 1. An assembly cavity 11 is formed between the sound guide structure 2 and the inner wall of the housing 1. In this embodiment, the sound guide structure 2 is integrally formed with the housing 1 and is located in the housing 1. The housing 1 has an appearance of a rectangular parallelepiped. The sound outlet 22 is provided on one of the side walls of the housing 1. The surrounding wall 24 and the housing 1 enclose a sound-gathering cavity 241, and the tube groove body 23 and the housing 1 enclose a sound-gathering cavity 231. The sound-gathering cavity 241 is connected to the sound outlet 22 through the sound-gathering cavity 231. The space between the sound guide structure 2 and the inner wall surface of the housing 1 is the assembly cavity 11 for mounting the sound unit 100.

[0045] This embodiment also provides a speaker comprising a sound unit 100 and the aforementioned speaker housing. The sound unit 100 is mounted in the assembly cavity 11 and covers the working opening. In this embodiment, the speaker is assembled from the sound unit 100 and the speaker housing. The speaker is mounted on the system side of the audiovisual device, and the sound unit 100 is connected to the power and signal cables of the system side. When powered, the speaker vibrates to generate sound waves, which are then transmitted through the sound-collecting cavity 241, the sound-conducting cavity 231, and the sound outlet 22. Specifically, before installing the sound unit 100 into the assembly cavity 11, the staff first applies adhesive to the end of the surrounding wall 24 close to the sound unit 100, and then installs the sound unit 100 into the assembly cavity 11 through the mounting port 12 on the mounting wall and rests it on the surrounding wall 24. Finally, the adhesive is applied again at the joint between the sound unit 100 and the outer shell 1 on the mounting wall to complete the connection between the sound unit 100 and the speaker shell. It can be understood that the sound unit 100 can also be connected to the speaker shell by ultrasonic welding.

[0046] Further, if Figure 3 and Figure 4As shown, the sound unit 100 fills the assembly cavity 11; alternatively, a rear cavity 111 is formed between the sound unit 100 and the inner wall of the assembly cavity 11. In this embodiment, after some smaller sound units 100 are installed in the assembly cavity 11 of the housing 1, they do not completely occupy the space of the assembly cavity 11. Therefore, a rear cavity 111 is formed between the sound unit 100 and the inner wall of the assembly cavity 11. The rear cavity 111 can prevent the low-frequency sound waves emitted by the sound unit 100 from short-circuiting. At the same time, by adjusting the structure of the rear cavity 111, the sound emitted by the speaker can be made rounder and louder. On the other hand, some larger sound units 100 will completely occupy the space of the assembly cavity 11. In this case, the rear cavity 111 exists in the space formed between the speaker and the system end. It can be understood that the position of the above-mentioned rear cavity 111 is set according to the structure and installation requirements of the audio-visual equipment.

[0047] Furthermore, a sealing rubber ring is interposed between the sound guide structure 2 and the sound unit 100. In this embodiment, the sealing rubber ring is provided at the end of the surrounding wall 24 near the sound unit 100. This improves the sealing between the sound guide structure 2 and the sound unit 100, preventing sound waves from leaking through the joint between the surrounding wall 24 and the sound unit 100 and causing loss, thereby further ensuring the sound playback effect of the speaker.

[0048] like Figure 5 As shown, in this embodiment, the speaker can be divided into several variations according to the position and structure of the rear cavity 111 after the speaker housing and the sound unit 100 are assembled; Figure 5 The left column is a longitudinal cross-sectional view of the speaker, numbered A1-A6 from top to bottom, and the right column is a transverse cross-sectional view of the speaker, numbered B1-B6 from top to bottom. Therefore, the left and right columns can be arranged and combined to generate 36 different variations of Example 1; it can be understood that, for the speaker shell composed of A4B4, the rear cavity 111 is not located in the assembly cavity 11.

[0049] Example 2

[0050] like Figures 6 to 9 As shown, this embodiment provides a speaker housing, which is basically the same as the speaker housing of the first embodiment, with the main differences being the following:

[0051] In this embodiment, the openings of the working opening and the mounting opening 12 are arranged at an angle. Specifically, the housing 1 has a rectangular appearance, with one side wall of the housing 1 being a sound outlet wall, on which a sound outlet 22 is provided. The side wall opposite the sound outlet wall is a mounting wall, which is parallel to the sound outlet wall. The mounting opening 12 is provided on the mounting wall, and the plane where the working opening of the sound guide structure 2 is located is perpendicular to the mounting wall. When installing the sound unit 100, the sound unit 100 is inserted into the assembly cavity 11 through the side mounting opening 12 and vertically abutted against the surrounding wall 24, thereby sealing the working opening and completing the assembly of the speaker.

[0052] Further, if Figure 8 As shown, a downward baffle 26 is provided on the surrounding wall 24. After the sound unit 100 extends into the assembly cavity 11, when it reaches the predetermined installation position, the sound unit 100 will abut against the baffle 26 of the surrounding wall 24, thereby ensuring that it is installed in place.

[0053] This embodiment also provides a speaker comprising a sound unit 100 and the aforementioned speaker housing. The sound unit 100 is mounted in the assembly cavity 11 and covers the working opening. In this embodiment, the speaker is assembled from the sound unit 100 and the speaker housing. The speaker is mounted on the system side of the audiovisual device, and the sound unit 100 is connected to the power and signal cables of the system side. When powered, the speaker vibrates to generate sound waves, which are then transmitted through the sound-collecting cavity 241, the sound-conducting cavity 231, and the sound outlet 22. Specifically, before installing the sound unit 100 into the assembly cavity 11, the staff first applies adhesive on the end of the surrounding wall 24 close to the sound unit 100 and on the baffle 26, and then installs the sound unit 100 into the assembly cavity 11 through the mounting opening 12 on the mounting wall and abuts against the baffle 26 in the horizontal direction. At the same time, the sound unit 100 also abuts against the surrounding wall 24 in the vertical direction. Finally, adhesive is applied again at the joint between the sound unit 100 and the outer shell 1 on the mounting wall to complete the connection between the sound unit 100 and the speaker shell. It can be understood that the sound unit 100 can also be connected to the speaker shell by ultrasonic welding.

[0054] Further, if Figure 8 and Figure 9 As shown, a rear cavity 111 is formed between the sound unit 100 and the inner wall of the assembly cavity 11. In this embodiment, for a speaker housing with the openings of the working port and the mounting port 12 arranged at an angle, the sound unit 100 is installed into the assembly cavity 11 from the side. Therefore, there is always a space between the sound unit 100 and the inner wall at the bottom of the assembly cavity 11. This space is the rear cavity 111. In other words, in this embodiment, the rear cavity 111 exists within the assembly cavity 11.

[0055] like Figure 10As shown, in this embodiment, the speaker can be divided into several variations according to the position and structure of the rear cavity 111 after the speaker housing and the sound unit 100 are assembled; Figure 9 The left column is a longitudinal cross-sectional view of the speaker, numbered C1-C6 from top to bottom, and the right column is a transverse cross-sectional view of the speaker, numbered D1-D6 from top to bottom. Therefore, the left and right columns can be arranged and combined to generate several different variations of Example 2. It should be noted that C6D6 form a structure separated from top to bottom and therefore cannot be used in combination. In addition, any combination of two items in the left and right columns must include at least one of C3, C5, C6 or D3, D5, D6, otherwise the sound unit 100 cannot be installed in the assembly cavity 11. Therefore, according to the above arrangements and combinations, a total of 26 different variations can be generated in Example 2.

[0056] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A loudspeaker housing, characterized in that It comprises an integrally formed housing (1) and a sound guide structure (2); The housing (1) is provided with an assembly cavity (11) and an installation opening (12); the assembly cavity (11) is connected to the outside through the installation opening (12); and the sound unit (100) can extend into the assembly cavity (11) through the installation opening (12); The sound guide structure (2) is provided with a front cavity (21), a sound outlet (22) and an operating port; the front cavity (21) is connected to the outside through the sound outlet (22) and is connected to the assembly cavity (11) through the operating port; when the sound generating unit (100) is installed in the assembly cavity (11), the operating port is sealed.

2. The speaker housing according to claim 1, wherein The sound guide structure (2) comprises a tube trough body (23) and a surrounding wall (24) connected to each other, the tube trough body (23) and the surrounding wall (24) are both connected to the shell (1), a sound guide cavity (231) is formed between the tube trough body (23) and the shell (1), the sound guide cavity (231) is connected to the outside through the sound outlet (22), a sound gathering cavity (241) connected to the sound guide cavity (231) is formed between the surrounding wall (24) and the shell (1), the sound gathering cavity (241) is connected to the assembly cavity (11) through the working port, and the sound guide cavity (231) and the sound gathering cavity (241) constitute the front cavity (21).

3. The speaker housing according to claim 2, wherein The working port is arranged opposite to the installation port (12).

4. The speaker housing according to claim 2, wherein The opening directions of the working port and the installation port (12) are arranged at an angle.

5. The speaker housing according to claim 2, wherein Along the direction from the working port to the sound outlet (22), the cross-sectional area of ​​the sound guide cavity (231) is smaller than the cross-sectional area of ​​the sound focusing cavity (241).

6. The speaker housing according to claim 2, wherein A side block (25) is provided on the surrounding wall (24) around the working opening, and the sound generating unit (100) can be clamped in the side block (25).

7. The loudspeaker housing according to any one of claims 1 to 6, characterized in that: The sound guide structure (2) is arranged in the housing (1), the sound outlet (22) is arranged on the outer wall of the housing (1), and the assembly cavity (11) is formed between the sound guide structure (2) and the inner wall of the housing (1).

8. A loudspeaker, characterized in that A loudspeaker housing comprising a sound-emitting unit (100) as claimed in any one of claims 1 to 7, wherein the sound-emitting unit (100) is installed in the assembly cavity (11) and covers the working opening.

9. The loudspeaker according to claim 8, characterized in that The sound-generating unit (100) fills the assembly cavity (11); or, a rear cavity (111) is formed between the sound-generating unit (100) and the inner wall of the assembly cavity (11).

10. The loudspeaker according to claim 8, characterized in that A sealing rubber ring is sandwiched between the sound guide structure (2) and the sound generating unit (100).

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