Sound production device

Abstract

This invention belongs to the technical field of sound-producing devices and discloses a sound-producing device, including a rear shell, a speaker assembly, a front shell, and a sound-venting frame. The rear shell has a receiving groove and a rear cavity groove. A vent hole communicating with the receiving groove is provided on the outer wall of the rear shell. The speaker assembly is disposed at the opening of the rear cavity groove, sealing the rear cavity groove to form a rear sound cavity. The front shell is placed on the rear shell, and the speaker assembly is sandwiched between the front shell and the opening of the rear cavity groove. The side of the front shell away from the speaker assembly forms a front sound cavity. The sound-venting frame is disposed in the receiving groove, sandwiched between the rear shell and the front shell. The sound-venting frame and the rear shell are assembled to form a rear sound-venting channel, one end of which communicates with the rear sound cavity, and the other end communicates with the vent hole. The sound-venting frame and the front shell are assembled to form a front sound-venting channel, one end of which communicates with the front sound cavity, and the other end communicates with the vent hole. In this invention, the sound-venting frame is disposed in the receiving groove, making full use of the space within the receiving groove, simplifying the assembly process, and reducing production and assembly costs.

Description

Technical Field

[0001] This invention relates to the field of sound-producing equipment technology, and more particularly to a sound-producing device. Background Technology

[0002] In existing headphones, the front and rear acoustic chambers are far apart, and the front and rear sound leakage channels connected to the front and rear acoustic chambers are set up independently. This results in a large number of structural parts, complex assembly processes, and high production and assembly costs. Furthermore, since the front and rear sound leakage channels leak sound in different directions, it is necessary to configure connecting ports on the outer wall of the headphones, which affects the appearance of the headphones.

[0003] In addition, the headphones also have microphones inside the cavity, so the headphones also need to be equipped with a sound receiving channel connected to the cavity. The sound receiving channel, the front sound leakage channel and the rear sound leakage channel are independent of each other, and the connection ports need to be provided on the outer wall of the headphones, which affects the appearance of the headphones. Summary of the Invention

[0004] The purpose of this invention is to provide a sound-producing device that can reduce the number of structural parts, simplify the assembly process, reduce production and assembly costs, and ensure the appearance of the product.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The sound-producing device includes:

[0007] The rear shell is provided with a receiving groove and a rear cavity groove, and the outer wall of the rear shell is provided with a vent hole communicating with the receiving groove.

[0008] A speaker assembly is disposed in the slot of the rear cavity groove, and the rear cavity groove is sealed to form a rear sound cavity;

[0009] A front housing is disposed on the rear housing, and the speaker assembly is sandwiched between the front housing and the slot of the rear cavity. The side of the front housing opposite to the speaker assembly forms a front sound cavity.

[0010] A sound-diffusing frame is disposed in the receiving groove and sandwiched between the rear shell and the front shell. The sound-diffusing frame and the rear shell are assembled to form a rear sound-diffusing channel. One end of the rear sound-diffusing channel is connected to the rear sound cavity, and the other end is connected to the vent hole. The sound-diffusing frame and the front shell are assembled to form a front sound-diffusing channel. One end of the front sound-diffusing channel is connected to the front sound cavity, and the other end is connected to the vent hole.

[0011] Preferably, the sound-absorbing frame is also provided with a sound-receiving channel, one end of which is connected to the vent hole and the other end of which is connected to the receiving groove.

[0012] Preferably, the vent is elongated, and the connections between the rear sound leakage channel, the front sound leakage channel, and the sound receiving channel and the vent are arranged sequentially along the length of the vent.

[0013] Preferably, the sound-venting frame includes:

[0014] The rear frame has a rear connecting groove, which is assembled with the rear shell to form a first rear connecting channel, which is connected to the rear sound cavity. A second rear connecting channel is provided at the bottom of the rear connecting groove, which is connected to the vent hole.

[0015] The front frame has a front connecting groove, which is assembled with the front shell to form a first front connecting channel, which is connected to the front sound cavity. A second front connecting channel is provided at the bottom of the front connecting groove. The rear frame also has a third front connecting channel connected to the vent hole, and the second front connecting channel is connected to the third front connecting channel.

[0016] Preferably, the sound-dampening frame further includes a sealing gasket, which is sandwiched between the rear frame and the front frame, and the second front connecting channel is connected to the third front connecting channel through the sealing gasket.

[0017] Preferably, the receiving groove is provided with a rear assembly groove, and one side wall of the rear assembly groove is provided with a through hole communicating with the rear cavity groove. The rear connecting groove and the rear assembly groove are assembled to form a first rear connecting channel.

[0018] Preferably, the receiving groove is provided with an insertion channel, the rear frame is inserted into the insertion channel, and the sliding direction of the rear frame in the insertion channel is set at an angle to the through direction of the vent hole.

[0019] Preferably, the front shell is provided with a front assembly groove, and one side wall of the front assembly groove is provided with a through hole communicating with the front sound cavity. The front connecting groove and the front assembly groove are assembled to form a first front connecting channel.

[0020] Preferably, a dustproof component is sandwiched between the sound-venting frame and the rear shell, and both the rear sound-venting channel and the front sound-venting channel are connected to the vent through the dustproof component.

[0021] Preferably, a dustproof component is provided on the inner wall of the rear cavity groove, and the rear sound leakage channel is connected to the rear sound cavity through the dustproof component.

[0022] The beneficial effects of this invention are:

[0023] The rear acoustic chamber located behind the speaker assembly and the front acoustic chamber located in front of the front shell are separated by a receiving groove, which is far apart. The sound venting frame is set in the receiving groove, making full use of the space within the receiving groove. The sound venting frame is assembled with the rear shell to form the rear sound venting channel, and assembled with the front shell to form the front sound venting channel. This makes the placement of the rear and front sound venting channels more precise. The rear and front sound venting channels are integrated on the sound venting frame, reducing the number of structural parts, simplifying the assembly process, and lowering production and assembly costs. Both the rear and front sound venting channels are connected to the outside through vent holes on the outer wall of the rear shell, and the sound venting direction is the same, ensuring the appearance of the product. Attached Figure Description

[0024] Figure 1 This is a partial structural schematic diagram of the sound-producing device described in an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of the sound-producing device according to an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional view of the sound-producing device according to another orientation of the present invention;

[0027] Figure 4 yes Figure 1 The structural diagram of the front shell is omitted;

[0028] Figure 5 This is a schematic diagram of the structure of the rear shell according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the front shell structure according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the sound-venting frame described in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the rear frame structure according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the front frame structure according to an embodiment of the present invention;

[0033] Figure 10 This is an exploded view of the sound-producing device described in an embodiment of the present invention;

[0034] Figure 11 This is an exploded view of the dustproof assembly between the rear frame and the rear shell as described in an embodiment of the present invention.

[0035] In the picture:

[0036] 1. Back cover;

[0037] 11. Receiving groove; 12. Rear cavity groove; 13. Vent hole; 14. Rear assembly groove; 15. Insertion channel;

[0038] 2. Speaker assembly;

[0039] 3. Front shell;

[0040] 31. Front assembly slot;

[0041] 4. Soundproofing frame;

[0042] 410. Rear venting channel; 420. Front venting channel; 430. Receiver channel;

[0043] 41. Rear frame; 411. Rear connecting slot; 412. Second rear connecting channel; 413. Third front connecting channel;

[0044] 42. Front frame; 421. Front connecting slot; 422. Second front connecting channel;

[0045] 43. Sealing gaskets;

[0046] 5. Dustproof components;

[0047] 51. Mesh fabric; 52. Support washer. Detailed Implementation

[0048] Embodiments of the present invention 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 components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0052] like Figures 1-11 As shown, the present invention provides a sound-producing device, including a rear shell 1, a speaker assembly 2, a front shell 3, and a sound-venting frame 4. The rear shell 1 is provided with a receiving groove 11 and a rear cavity groove 12. The outer wall of the rear shell 1 is provided with a vent hole 13 communicating with the receiving groove 11. The speaker assembly 2 is provided in the groove of the rear cavity groove 12, and the rear cavity groove 12 is sealed to form a rear sound cavity. The front shell 3 is covered on the rear shell 1. The speaker assembly 2 is sandwiched between the front shell 3 and the groove of the rear cavity groove 12. The side of the front shell 3 away from the speaker assembly 2 forms a front sound cavity. The sound venting frame 4 is provided in the receiving groove 11 and sandwiched between the rear shell 1 and the front shell 3. The sound venting frame 4 and the rear shell 1 are assembled to form a rear sound venting channel 410. One end of the rear sound venting channel 410 is connected to the rear sound cavity, and the other end is connected to the vent hole 13. The sound venting frame 4 and the front shell 3 are assembled to form a front sound venting channel 420. One end of the front sound venting channel 420 is connected to the front sound cavity, and the other end is connected to the vent hole 13.

[0053] In this invention, the rear sound cavity located behind the speaker assembly 2 and the front sound cavity located in front of the front shell 3 are separated by the receiving groove 11, with a large distance between them. The sound venting frame 4 is set in the receiving groove 11, making full use of the space within the receiving groove 11. The sound venting frame 4 is assembled with the rear shell 1 to form the rear sound venting channel 410, and assembled with the front shell 3 to form the front sound venting channel 420, making the setting positions of the rear sound venting channel 410 and the front sound venting channel 420 more precise. The rear sound venting channel 410 and the front sound venting channel 420 are integrated on the sound venting frame 4, reducing the number of structural parts, simplifying the assembly process, and reducing production and assembly costs. The rear sound venting channel 410 and the front sound venting channel 420 are both connected to the outside through the vent hole 13 on the outer wall of the rear shell 1, and the sound venting direction is the same, ensuring the appearance of the product.

[0054] Specifically, the sound vent 4 is also provided with a sound receiving channel 430, one end of which is connected to the vent 13 and the other end is connected to the receiving slot 11. The receiving slot 11 of the sound-producing device is usually also provided with a microphone. By integrating the sound receiving channel 430 on the sound vent 4, the microphone can pick up sound more reliably.

[0055] More specifically, the vent 13 is elongated, and the rear sound leakage channel 410, the front sound leakage channel 420, and the sound receiving channel 430 are arranged sequentially along the length of the vent 13 at their connection points. With this arrangement, the sound receiving channel 430, connected to one end of the vent 13, is less affected by the rear sound leakage channel 410 and the front sound leakage channel 420.

[0056] In this embodiment, along the length of the vent 13, the connection length between the rear sound leakage channel 410 and the vent 13 is equal to the connection length between the sound receiving channel 430 and the vent 13, and the connection length between the front sound leakage channel 420 and the vent 13 is less than the connection length between the rear sound leakage channel 410 and the vent 13.

[0057] Specifically, the soundproof frame 4 includes a rear frame 41 and a front frame 42. The rear frame 41 is provided with a rear connecting groove 411, which is assembled with the rear shell 1 to form a first rear connecting channel, which is connected to the rear sound cavity. A second rear connecting channel 412 is provided at the bottom of the rear connecting groove 411, which is connected to the vent hole 13. The interconnected first and second rear connecting channels 412 form a rear sound leakage channel 410. The front frame 42 is provided with a front connecting groove 421, which is assembled with the front shell 3 to form a first front connecting channel, which is connected to the front sound cavity. A second front connecting channel 422 is provided at the bottom of the front connecting groove 421. The rear frame 41 is also provided with a third front connecting channel 413 connected to the vent hole 13. The second front connecting channel 422 is connected to the third front connecting channel 413. The first, second, and third front connecting channels 422 and 413 are connected in sequence to form a front sound leakage channel 420. The above setup reduces the number of structural parts, simplifies the assembly process, and lowers production and assembly costs.

[0058] More specifically, the sound venting frame 4 also includes a sealing gasket 43, which is sandwiched between the rear frame 41 and the front frame 42. The second front connecting channel 422 is connected to the third front connecting channel 413 through the sealing gasket 43. By setting the sealing gasket 43, the connection between the second front connecting channel 422 and the third front connecting channel 413 is made safer and more reliable.

[0059] Specifically, a rear assembly groove 14 is provided in the receiving groove 11. A through hole communicating with the rear cavity groove 12 is opened on one side wall of the rear assembly groove 14. The rear connecting groove 411 and the rear assembly groove 14 are assembled to form a first rear connecting channel. By providing the rear assembly groove 14, the rear frame 41 can be positioned and installed on the rear shell 1.

[0060] More specifically, the receiving groove 11 is provided with an insertion channel 15, in which the rear frame 41 is inserted. The sliding direction of the rear frame 41 in the insertion channel 15 is set at an angle to the through direction of the vent hole 13. The above arrangement further ensures the positioning and installation accuracy of the rear frame 41 on the rear shell 1, so that the rear frame 41 can be reliably assembled onto the rear shell 1 without relying on fasteners.

[0061] Specifically, the front shell 3 is provided with a front assembly groove 31, and one side wall of the front assembly groove 31 has a through hole communicating with the front sound cavity. The front connecting groove 421 and the front assembly groove 31 are assembled to form a first front connecting channel. By providing the front assembly groove 31, the front frame 42 can be positioned and installed on the front shell 3.

[0062] In this embodiment, during assembly, the front frame 42 extends into the front assembly slot 31, resulting in more precise positioning.

[0063] Specifically, a dustproof component 5 is sandwiched between the sound-venting frame 4 and the rear shell 1. Both the rear sound-venting channel 410 and the front sound-venting channel 420 are connected to the vent 13 through the dustproof component 5. By setting the dustproof component 5, the intrusion of dust and other foreign objects can be prevented.

[0064] More specifically, a dustproof component 5 is provided on the inner wall of the rear cavity groove 12, and the rear sound leakage channel 410 is connected to the rear sound cavity through the dustproof component 5. By providing the dustproof component 5, the intrusion of dust and other foreign objects can be prevented, ensuring the safety of the rear sound cavity.

[0065] More specifically, a dustproof component 5 is sandwiched between the sealing gasket 43 and the front frame 42, and the second front connecting channel 422 is connected to the sealing gasket 43 through the dustproof component 5. By providing the dustproof component 5, the intrusion of dust and other foreign objects can be prevented.

[0066] In this embodiment, the dustproof component 5 includes a mesh fabric 51 and supporting washers 52. The dustproof component 5 between the rear frame 41 and the rear shell 1 of the sound venting frame 4 includes two supporting washers 52 and a mesh fabric 51 sandwiched between the two supporting washers 52. The two supporting washers 52 are arranged around the outer periphery of the vent hole 13, supporting the mesh fabric 51 between them, so that the mesh fabric 51 covers the vent hole 13. The dustproof component 5 on the inner wall of the rear cavity groove 12 includes a supporting washer 52 and a mesh fabric 51 connected to the supporting washer 52. A slot is opened on the inner wall of the rear cavity groove 12, and the supporting washer 52 is snapped into the slot, arranged around the outer periphery of the communication opening between the rear sound venting channel 410 and the rear sound cavity. The mesh fabric 51 covers the communication opening between the rear sound venting channel 410 and the rear sound cavity. The dustproof assembly 5 between the sealing gasket 43 and the front frame 42 includes two support gaskets 52 and a mesh fabric 51 sandwiched between the two support gaskets 52. The two support gaskets 52 are arranged around the outer periphery of the connection opening of the sealing gasket 43 and the second front connecting channel 422, and support the mesh fabric 51 between them, so that the mesh fabric 51 covers the connection opening of the sealing gasket 43 and the second front connecting channel 422.

[0067] The sound-producing device in this embodiment is a headset. The front shell 3 is provided with a first surface, a second surface, and a connecting side. The first surface and the second surface are parallel to each other. The connecting side is the transition surface between the first surface and the second surface. The first surface is positioned directly opposite the speaker assembly 2 and is provided with multiple sound holes. The second surface is configured as an elastic pad that contacts the user. The connection port between the front sound leakage channel 420 and the front sound cavity is located on the connecting side. The structure and working principle of the speaker assembly 2 and the microphone are based on existing technology and will not be described in detail here.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A sound-producing device, characterized in that, include: The rear shell (1) is provided with a receiving groove (11) and a rear cavity groove (12), and the outer wall of the rear shell (1) is provided with a vent hole (13) communicating with the receiving groove (11). The speaker assembly (2) is disposed in the slot of the rear cavity groove (12) and covers the rear cavity groove (12) to form a rear sound cavity; The front shell (3) is covered on the rear shell (1), and the speaker assembly (2) is sandwiched between the front shell (3) and the slot of the rear cavity (12). The front shell (3) forms a front sound cavity on the side away from the speaker assembly (2). A sound venting frame (4) is disposed in the receiving groove (11) and sandwiched between the rear shell (1) and the front shell (3). The sound venting frame (4) and the rear shell (1) are assembled to form a rear sound venting channel (410). One end of the rear sound venting channel (410) is connected to the rear sound cavity, and the other end is connected to the vent hole (13). The sound venting frame (4) and the front shell (3) are assembled to form a front sound venting channel (420). One end of the front sound venting channel (420) is connected to the front sound cavity, and the other end is connected to the vent hole (13).

2. The sound-producing device according to claim 1, characterized in that, The sound-receiving frame (4) is also provided with a sound-receiving channel (430), one end of which is connected to the vent (13) and the other end is connected to the receiving groove (11).

3. The sound-producing device according to claim 2, characterized in that, The vent (13) is elongated, and the connection points of the rear sound leakage channel (410), the front sound leakage channel (420) and the sound receiving channel (430) with the vent (13) are arranged sequentially along the length of the vent (13).

4. The sound-producing device according to claim 1, characterized in that, The soundproof frame (4) includes: The rear frame (41) is provided with a rear connecting groove (411). The rear connecting groove (411) and the rear shell (1) are assembled to form a first rear connecting channel. The first rear connecting channel is connected to the rear sound cavity. The bottom of the rear connecting groove (411) is provided with a second rear connecting channel (412). The second rear connecting channel (412) is connected to the vent (13). The front frame (42) is provided with a front connecting groove (421). The front connecting groove (421) and the front shell (3) are assembled to form a first front connecting channel. The first front connecting channel is connected to the front sound cavity. A second front connecting channel (422) is provided at the bottom of the groove of the front connecting groove (421). The rear frame (41) is also provided with a third front connecting channel (413) connected to the vent (13). The second front connecting channel (422) is connected to the third front connecting channel (413).

5. The sound-producing device according to claim 4, characterized in that, The sound-dampening frame (4) also includes a sealing gasket (43), which is sandwiched between the rear frame (41) and the front frame (42). The second front connecting channel (422) is connected to the third front connecting channel (413) through the sealing gasket (43).

6. The sound-producing device according to claim 4, characterized in that, The receiving groove (11) is provided with a rear assembly groove (14). One side wall of the rear assembly groove (14) is provided with a through hole that communicates with the rear cavity groove (12). The rear connecting groove (411) and the rear assembly groove (14) are assembled to form a first rear connecting channel.

7. The sound-producing device according to claim 4, characterized in that, The receiving groove (11) is provided with an insertion channel (15), and the rear frame (41) is inserted into the insertion channel (15). The sliding direction of the rear frame (41) in the insertion channel (15) is set at an angle to the through direction of the vent (13).

8. The sound-producing device according to claim 4, characterized in that, The front shell (3) is provided with a front assembly groove (31), and a through hole communicating with the front sound cavity is opened on one side of the groove wall of the front assembly groove (31). The front connecting groove (421) and the front assembly groove (31) are assembled to form a first front connecting channel.

9. The sound-producing device according to claim 1, characterized in that, A dustproof component (5) is sandwiched between the sound-absorbing frame (4) and the rear shell (1). The rear sound-absorbing channel (410) and the front sound-absorbing channel (420) are both connected to the vent (13) through the dustproof component (5).

10. The sound-producing device according to any one of claims 1-9, characterized in that, A dustproof component (5) is provided on the inner wall of the rear cavity groove (12), and the rear sound leakage channel (410) is connected to the rear sound cavity through the dustproof component (5).

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