Loudspeaker shell and loudspeaker

Abstract

The invention 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 present invention relates to the technical field of loudspeakers, and in particular to a loudspeaker housing and a loudspeaker. Background Art

[0002] The loudspeaker, commonly known as "horn", is a common electroacoustic transducer device that produces sound by converting electrical signals into acoustic signals. Currently commonly used loudspeakers consist of a unit and a shell. The shell includes an upper cover and a lower cover. The unit is the sound-emitting unit of the loudspeaker. The upper cover and the lower cover are enclosed on the outside of the unit, and the unit can be partially exposed. However, when assembling the above-mentioned loudspeaker, a special sealing design is required for the connection between the upper cover and the lower cover. The steps are cumbersome and the structure is complex. At the same time, when producing the shell, the upper cover and the lower cover need to be produced separately, which will affect the progress of large-scale mass production of the loudspeaker. Summary of the invention

[0003] The object of the present invention 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 object, the present invention adopts the following technical solutions:

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

[0006] The housing is provided with an assembly cavity and an installation opening, the assembly cavity is connected to 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 comprises 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 opening and the installation opening 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 focusing cavity.

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

[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, wherein 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] In the speaker housing provided by the present invention, a sound unit is installed in the assembly cavity of the shell and covers the working opening of the sound guide structure. When the sound 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 speaker to produce sound. Since the sound guide structure and the shell are integrally formed, and an installation opening for the sound unit to extend into is provided on the shell, the speaker can be assembled by installing the sound 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 speaker and reducing the manufacturing cost of the speaker.

[0019] The loudspeaker provided by the present invention 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 is a schematic structural diagram of a housing provided in Embodiment 1 of the present invention;

[0021] Figure 2 is a schematic structural diagram of a housing provided by Embodiment 1 of the present invention after being cut apart along the height direction;

[0022] Figure 3 is a cross-sectional view of a loudspeaker provided in Embodiment 1 of the present invention;

[0023] Figure 4 is a longitudinal cross-sectional view of a loudspeaker provided in Embodiment 1 of the present invention;

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

[0025] Figure 6 is a schematic structural diagram of a housing provided in Embodiment 2 of the present invention;

[0026] Figure 7 is a schematic structural diagram of a housing provided by Embodiment 2 of the present invention after being cut apart along the height direction;

[0027] Figure 8 is a cross-sectional view of a loudspeaker provided in Embodiment 2 of the present invention;

[0028] Fig. 9 is a longitudinal cross-sectional view of a loudspeaker provided in Embodiment 2 of the present invention;

[0029] Fig.10 Schematic diagrams of cross-section and longitudinal section of various deformation structures of the loudspeaker provided in the second embodiment of the present invention.

[0030] In the figure:

[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 in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0037] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] Embodiment 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, and when the sound unit 100 is installed in the assembly cavity 11, the operating port is covered. 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 are transmitted to the outside through the front cavity 21 and the sound outlet 22 in sequence, 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 speaker can be assembled 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. The assembly production can be completed without connecting multiple parts, thereby greatly improving the production efficiency of the speaker and reducing the manufacturing cost of the speaker.

[0040] Furthermore, if Figures 2 to 4As shown, the sound-guiding structure 2 includes a tube groove body 23 and a surrounding wall 24 that are connected to each other. The tube groove 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 groove body 23 and the outer shell 1. The sound-guiding cavity 231 is connected to the outside through a 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 an operating port. The sound-guiding cavity 231 and the sound-gathering cavity 241 constitute a front cavity 21. In this embodiment, the tube slot 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 slot body 23 is a three-sided open structure. A sound-guiding cavity 231 is formed between the tube slot 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 to the sound-guiding cavity 231 through the sound-gathering cavity 241 in a unidirectional manner, and finally transmitted out through the sound outlet 22.

[0041] Specifically, Figure 2 As shown, the working opening is arranged opposite to the installation 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, and a sound outlet 22 is provided on the sound outlet wall; a wall adjacent to the sound outlet wall is a mounting wall, the mounting wall is perpendicular to the sound outlet wall, the installation opening 12 is provided on the mounting wall, and the working opening of the sound guide structure 2 is arranged opposite to the installation opening 12 and is located above the installation opening 12; when installing the sound unit 100, the sound unit 100 is extended upward into the assembly cavity 11 through the installation opening 12 at the bottom, and the sound unit 100 is vertically abutted against the surrounding wall 24, thereby blocking the working opening to complete the assembly of the speaker.

[0042] Specifically, 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 will pass through the sound focusing cavity 241 and the sound guide cavity 231 in sequence from the working port, and finally be transmitted through the sound outlet 22. Along this direction, the cross-sectional area of ​​the sound guide cavity 231 is smaller than the cross-sectional area of ​​the sound focusing cavity 241, which is conducive to gathering the sound waves and propagating them outward, making the sound emitted brighter.

[0043] Specifically, Figure 4As shown, the surrounding wall 24 is provided with a side stopper 25 around the working opening, and the sound unit 100 can be clamped in the side stopper 25. In this embodiment, the side stopper 25 is provided at the end of the surrounding wall 24 close to the sound unit 100, and the side stopper 25 is arranged around the working opening, and the side stopper 25 and the end of the surrounding wall 24 form a slot, and the sound unit 100 can be clamped in the slot and abut against the side stopper 25.

[0044] Furthermore, if Figures 1 to 4 As shown, 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 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 a rectangular appearance, the sound outlet 22 is opened on one of the side walls of the housing 1, the surrounding wall 24 and the housing 1 are surrounded to form a sound-gathering cavity 241, and the tube groove body 23 and the housing 1 are surrounded to form a sound-gathering cavity 231. The sound-gathering cavity 241 is connected with the sound outlet 22 through the sound guide 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 installing the sound unit 100.

[0045] This embodiment also provides a speaker, which includes a sound unit 100 and the above-mentioned speaker housing, the sound unit 100 is installed in the assembly cavity 11, and the working port is covered. In this embodiment, the speaker is assembled by the sound unit 100 and the speaker housing, the speaker is installed at the system end of the audio-visual device, and the sound unit 100 is connected to the power line and signal line of the system end, and can generate sound waves through vibration after power is turned on, and the sound waves are transmitted through the sound focusing cavity 241, the sound guide cavity 231 and the sound outlet 22 in sequence. 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 installation opening 12 on the installation wall and abuts against the surrounding wall 24, and finally applies adhesive again at the joint between the sound unit 100 and the outer shell 1 on the installation wall, thereby completing 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] Furthermore, if Figure 3 and Figure 4As shown, the sound unit 100 fills the assembly cavity 11; or, 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 of the 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, so a rear cavity 111 is formed between the sound unit 100 and the inner wall of the assembly cavity 11, and 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 more mellow and loud; while some of the larger sound units 100 will completely occupy the space of the assembly cavity 11, and at this time, 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 sandwiched between the sound guide structure 2 and the sound unit 100. In this embodiment, a sealing rubber ring is provided at the end of the surrounding wall 24 close to the sound unit 100, which can improve the sealing of the connection between the sound guide structure 2 and the sound unit 100, and prevent 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 different positions and structures of the rear cavity 111 after the speaker housing and the sound unit 100 are assembled; Figure 5 The left column is a longitudinal sectional view of the speaker, numbered A1-A6 from top to bottom, and the right column is a transverse 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] Embodiment 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, and the main differences are as follows:

[0051] In this embodiment, the opening directions of the working opening and the installation opening 12 are set at an angle. Specifically, the housing 1 has a rectangular appearance, one of the side walls of the housing 1 is a sound outlet wall, and a sound outlet 22 is provided on the sound outlet wall; the side wall opposite to the sound outlet wall is a mounting wall, and the mounting wall is parallel to the sound outlet wall, and 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 extended into the assembly cavity 11 through the side mounting opening 12, and the sound unit 100 is vertically abutted against the surrounding wall 24, thereby blocking the working opening to complete the assembly of the speaker.

[0052] Furthermore, 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, which includes a sound unit 100 and the above-mentioned speaker housing, the sound unit 100 is installed in the assembly cavity 11, and the working port is covered. In this embodiment, the speaker is assembled by the sound unit 100 and the speaker housing, the speaker is installed at the system end of the audio-visual device, and the sound unit 100 is connected to the power line and signal line of the system end, and can generate sound waves through vibration after power is turned on, and the sound waves are transmitted through the sound focusing cavity 241, the sound guide cavity 231 and the sound outlet 22 in sequence. 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 installation opening 12 on the installation 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 installation wall, so as 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] Furthermore, if Figure 8 and Fig. 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 the speaker housing in which the opening directions of the working port and the installation port 12 are arranged at an angle, the sound unit 100 is installed into the assembly cavity 11 from the side, so there is always a space between the sound unit 100 and the inner wall at the bottom of the assembly cavity 11, and this part of the space is the rear cavity 111, that is, in this embodiment, the rear cavity 111 exists in the assembly cavity 11.

[0055] like Fig.10As shown, in this embodiment, the speaker can be divided into several variations according to the different positions and structures of the rear cavity 111 after the speaker housing and the sound unit 100 are assembled; Fig. 9 The left column is a longitudinal section of the speaker, numbered C1-C6 from top to bottom, and the right column is a transverse section of the speaker, numbered D1-D6 from top to bottom, so the left and right columns can be arranged and combined to generate several different variations of Example 2; it should be noted that C6D6 forms 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 embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope 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-emitting 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 a working 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 working port; when the sound generating unit (100) is installed in the assembly cavity (11), the working port is covered.

2. The speaker housing according to claim 1, characterized in that The sound-guiding structure (2) comprises a tube groove body (23) and a surrounding wall (24) connected to each other; the tube groove 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 groove body (23) and the outer shell (1); the sound-guiding cavity (231) is connected to the outside through the sound outlet (22); a sound-collecting cavity (241) connected to the sound-guiding cavity (231) is formed between the surrounding wall (24) and the outer shell (1); the sound-collecting cavity (241) is connected to the assembly cavity (11) through the working port; the sound-guiding cavity (231) and the sound-collecting cavity (241) constitute the front cavity (21).

3. The speaker housing according to claim 2, characterized in that The working opening is arranged opposite to the installation opening (12).

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

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

6. The speaker housing according to claim 2, characterized in that A side block (25) is arranged 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 shell (1), the sound outlet (22) is arranged on the outer wall of the shell (1), and the assembly cavity (11) is formed between the sound guide structure (2) and the inner wall of the shell (1).

8. A loudspeaker, characterized in that A loudspeaker housing comprising a sound-emitting unit (100) as described 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 port.

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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