Earphone

Abstract

The invention discloses an earphone, and belongs to the technical field of electronic products. The earphone comprises a shell, a sound production module and a front cavity support, the sound production module is arranged in the shell, and a first front cavity is formed in the first side of the sound production module; the front cavity bracket is arranged in the first front cavity so as to divide the first front cavity into a second front cavity and a first rear cavity; the sound production module is internally provided with a second rear cavity, and the second rear cavity is communicated with the first rear cavity.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to a headset. Background Art

[0002] As more and more parts are integrated into the headset and the size design requirements of the headset are getting higher and higher, the structural design of the headset is becoming more and more difficult. The sound module is one of the important components of the headset, and the sound playback effect of the sound module is one of the performances that users are particularly concerned about.

[0003] Since the internal space of the earphone is limited, the acoustic cavity space of the sound module will be compressed, including the acoustic back cavity which becomes smaller and smaller. This will directly lead to the narrowing of the audio response of the sound module, especially the deterioration of the mid- and low-frequency effects. Therefore, the sound module involved in the related technology has the problem of poor acoustic performance. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide an earphone that can solve the problem of poor acoustic performance of the sound module involved in the related art.

[0005] The present application provides an earphone, comprising a housing, a sound module and a front cavity support. The sound module is arranged in the housing to form a first front cavity on a first side of the sound module; The front cavity support is arranged in the first front cavity to separate the first front cavity into a second front cavity and a first rear cavity; The sound module has a second rear cavity, and the second rear cavity is connected to the first rear cavity.

[0006] In the embodiment of the present application, since the front cavity bracket is arranged in the first front cavity of the shell, and the front cavity bracket can separate the first front cavity into a second front cavity and a first rear cavity, the second rear cavity of the sound module can be connected to the first rear cavity, which can significantly increase the volume of the acoustic rear cavity of the sound module, thereby better improving the low-frequency performance of the sound module, that is, improving the acoustic performance of the sound module. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic cross-sectional view of the sound module disclosed in an embodiment of the present application; Figure 2 A schematic cross-sectional view of the earphone disclosed in an embodiment of the present application; Figure 3 This is a schematic diagram of the propagation direction of the sound waves disclosed in the embodiment of the present application.

[0008] Description of reference numerals: 100-housing, 110-first front cavity, 111-second front cavity, 120-third rear cavity, 130-sound outlet; 200-housing, 210-second rear cavity; 300-basin frame, 310-fourth rear cavity, 311-reflective particles, 320-first outlet, 330-first inlet, 340-conduit, 341-first tube body, 342-second tube body, 343-first annular limiting groove, 344-second blocking net, 345-second annular limiting groove, 346-second outlet, 347-first blocking net, 348-fourth annular limiting groove, 350-annular connecting plate; 400-Ring diaphragm; 500-ring voice coil; 600-ring magnet; 700-front cavity support, 710-partition plate, 711-first rear cavity, 712-second inlet, 713-third annular limiting groove, 720-sealing element, 730-first support frame; 810-battery, 820-second support frame, 830-protruding portion; 900- Ring-shaped magnetic conductor. DETAILED DESCRIPTION

[0009] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0010] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0011] The earphones disclosed in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0012] Please refer to Figure 1-Figure 3 The present application discloses an earphone, which includes a housing 100, a sound module and a front cavity support 700.

[0013] Please refer to Figure 1 and Figure 2 The sound module disclosed in the present application has a sound function. The sound module is arranged in the shell 100 to form a first front cavity 110 on the first side of the sound module. Since the sound module has a sound function, the earphone disclosed in the present application has a sound function.

[0014] The front cavity support 700 is disposed in the first front cavity 110 to separate the first front cavity 110 into the second front cavity 111 and the first rear cavity 711, that is, the front cavity support 700 is connected to the housing 100, the second front cavity 111 and the first rear cavity 711 are respectively formed on both sides of the front cavity support 700, and the acoustic signal can be transmitted from the first front cavity 110. Optionally, the front cavity support 700 has the effect of supporting the sound module, which can facilitate the sound module to be stably placed in the housing 100.

[0015] The sound module has a second rear cavity 210, which is the acoustic rear cavity of the sound module itself, and is connected to the first rear cavity 711. That is, the present application designs part of the space of the first front cavity 110 as the acoustic rear cavity of the sound module, which can significantly increase the volume of the acoustic rear cavity of the sound module.

[0016] In the embodiment of the present application, since the front cavity bracket 700 is arranged in the first front cavity 110 of the shell 100, and the front cavity bracket 700 can separate the first front cavity 110 into the second front cavity 111 and the first rear cavity 711, the second rear cavity 210 of the sound module can be connected to the first rear cavity 711, which can significantly increase the volume of the acoustic rear cavity of the sound module, thereby better improving the low-frequency performance of the sound module, that is, improving the acoustic performance of the sound module.

[0017] Optionally, refer to Figure 2 The earphone has a third rear cavity 120 formed on the second side of the sound module, and the second side and the first side are opposite sides of the sound module, that is, the third rear cavity 120 and the first front cavity 110 are located on opposite sides of the sound module, and the third rear cavity 120 is surrounded by the shell 100 and the sound module.

[0018] The sound module may include a shell 200, a basin frame 300 and an annular diaphragm 400. The shell 200 is the installation base for the various components of the sound module, for example, the installation base for the basin frame 300 and the annular diaphragm 400. Specifically, the shell 200 is provided with an opening toward the second front cavity 111, the basin frame 300 is connected to the shell 200, at least part of the basin frame 300 is located in the shell 200, and the basin frame 300 has a protruding portion 830 extending to the first front cavity 110, and the protruding portion 830 is connected to the front cavity support 700, so that the front cavity support 700 supports the entire sound module by supporting the protruding portion 830.

[0019] The annular diaphragm 400 surrounds the basin frame 300 and is disposed at the opening, so that the housing 200, the basin frame 300 and the annular diaphragm 400 enclose the second rear cavity 210, and the annular diaphragm 400 faces the second front cavity 111. Optionally, the housing 200 may be an annular housing, and the housing 200 may be a plastic part, that is, the housing 200 may be formed by injection molding.

[0020] The basin frame 300 has a fourth rear cavity 310, that is, the basin frame 300 itself has a fourth rear cavity 310 independently located outside the second rear cavity 210, and the basin frame 300 is provided with first inlet 330 and multiple first outlets 320 at intervals. The multiple first outlets 320 can connect the third rear cavity 120 with the second rear cavity 210, so that the sound waves generated in the second rear cavity 210 can be quickly transmitted to the third rear cavity 120, and the first inlet 330 can connect the third rear cavity 120 with the fourth rear cavity 310, so that the sound waves in the third rear cavity 120 can be quickly transmitted to the fourth rear cavity 310. It can be seen that the present application can connect the second rear cavity 210, the third rear cavity 120 and the fourth rear cavity 310 through the first inlet 330 and multiple first outlets 320.

[0021] At the same time, since the protruding portion 830 is connected to the front cavity support 700, it is convenient for the fourth rear cavity 310 to communicate with the first rear cavity 711, so that the second rear cavity 210, the third rear cavity 120, the fourth rear cavity 310 and the first rear cavity 711 are connected in sequence. It can be seen that the present application provides an independent fourth rear cavity 310 in the sound module, which can further increase the volume of the acoustic rear cavity of the sound module, thereby further improving the acoustic performance of the sound module. Of course, in other embodiments, the basin frame 300 may not have the fourth rear cavity 310.

[0022] In this embodiment, please refer to Figure 3 During the vibration of the annular diaphragm 400, the propagation direction of the sound waves generated can be the direction of entering the fourth rear cavity 310 through the second rear cavity 210, the first outlet 320, the third rear cavity 120 and the first inlet 330, that is, the sound waves can enter the fourth rear cavity 310 through the second rear cavity 210, the first outlet 320, the third rear cavity 120 and the first inlet 330 in sequence, and because the fourth rear cavity 310 is connected to the first rear cavity 711, the sound waves can continue to propagate from the fourth rear cavity 310 to the first rear cavity 711. It can be seen that the propagation path of the sound waves generated by the sound module in the present application is longer, and the volume of the acoustic back cavity of the sound module is larger, which can better improve the low-frequency performance of the sound module. It should be noted that the specific propagation direction of the sound waves can be referred to. Figure 3 The arrow indicates the direction.

[0023] In addition, since the basin frame 300 has a protruding portion 830 extending to the first front cavity 110, that is, a portion of the basin frame 300 can pass through the opening and extend into the first front cavity 110, so that a portion of the basin frame 300 can be located in the first front cavity 110, specifically in the second front cavity 111, this makes the space occupied by the basin frame 300 larger, and thus the volume of the fourth rear cavity 310 can be designed to be larger, which can further increase the volume of the acoustic rear cavity of the sound module, thereby further improving the low-frequency performance of the sound module, that is, further improving the acoustic performance of the sound module. At the same time, since a portion of the basin frame 300 is located in the second front cavity 111, it can be understood that the fourth rear cavity 310 utilizes part of the space of the second front cavity 111, that is, the present application utilizes the space of the second front cavity 111 and converts it into the acoustic rear cavity of the sound module, which can significantly reduce the space of the second front cavity 111, thereby avoiding the decline of the high-frequency performance of the sound module.

[0024] Of course, in other embodiments, the basin frame 300 may be entirely located within the housing 200 .

[0025] Optionally, refer to Figure 1 The basin frame 300 may include a conduit 340 and an annular connecting plate 350 protruding from the conduit 340 and extending along the circumference of the conduit 340, wherein the conduit 340 has a fourth rear cavity 310, and the annular connecting plate 350 is connected to the shell 200 so that the annular connecting plate 350 can separate the conduit 340 and the shell 200, and the annular diaphragm 400, the shell 200, the annular connecting plate 350 and the conduit 340 form a second rear cavity 210, and a plurality of first outlets 320 may be provided on the annular connecting plate 350, and the plurality of first outlets 320 may be arranged at intervals along the circumference of the connection between the conduit 340 and the annular connecting plate 350, that is, the plurality of first outlets 320 surround the conduit 340, and the annular connecting plate 350 is connected to one end of the conduit 340 facing the third rear cavity 120, so that the plurality of first outlets 320 are closer to the third rear cavity 120.

[0026] In this embodiment, since the annular connecting plate 350 can separate the conduit 340 from the housing 200, and the annular connecting plate 350 is connected to the end of the conduit 340 facing the third rear cavity 120, the second rear cavity 210 can be enlarged, so that it is easier to set a larger annular diaphragm 400, thereby making the sound module have better performance in low-frequency response, sound field performance and sound quality richness. Of course, in other embodiments, the basin frame 300 may not include the annular connecting plate 350, that is, in this case, the conduit 340 can be set to a structure with a more complex shape, and then directly connected to the housing 200.

[0027] Optionally, the end of the conduit 340 facing the first front cavity 110 is provided with the above-mentioned protruding portion 830 to connect the fourth rear cavity 310 with the first rear cavity 711. Specifically, the end of the conduit 340 facing the first front cavity 110 may be provided with a second outlet 346, that is, the protruding portion 830 may be provided with a second outlet 346, and the front cavity support 700 may be provided with a second inlet 712, and the second outlet 346 is connected to the second inlet 712, so that the fourth rear cavity 310 is connected to the first rear cavity 711.

[0028] In this embodiment, the first inlet 330 is provided at one end of the conduit 340 facing the third rear cavity 120, so that the first inlet 330 is closer to the third rear cavity 120, which can facilitate the sound waves in the third rear cavity 120 to smoothly enter the fourth rear cavity 310 through the first inlet 330, that is, this arrangement can reduce the damping of sound wave propagation. Of course, in other embodiments, the first inlet 330 can be provided at other parts of the conduit 340, for example, the first inlet 330 can be provided at the middle part of the conduit 340.

[0029] Optionally, the conduit 340 and the annular connecting plate 350 can be integrally formed to ensure the structural strength of the basin frame 300 and improve the overall assembly efficiency of the sound module. Of course, in other embodiments, the conduit 340 and the annular connecting plate 350 can be separately provided, and during the assembly of the sound module, the conduit 340 and the annular connecting plate 350 can be connected by a connector.

[0030] Optionally, the catheter 340 may include a first tube body 341 and a second tube body 342 that are connected to each other. The first tube body 341 may be located in the shell 200. A protrusion 830 is provided at one end of the second tube body 342, that is, a portion of the second tube body 342 passes through the opening and extends into the first front cavity 110. The radial dimension of the first tube body 341 may be equal to the radial dimension of the second tube body 342.

[0031] In another embodiment, the radial dimension of the first tube body 341 may be greater than the radial dimension of the second tube body 342, so that an escape space for avoiding vibration of the annular diaphragm 400 may be formed between the outer wall of the first tube body 341 and the outer wall of the second tube body 342, that is, the escape space may avoid affecting the normal vibration of the annular diaphragm 400. Optionally, the radial dimension of the first tube body 341 may be greater than or equal to 5 mm, and the radial dimension of the second tube body 342 may be greater than or equal to 1.5 mm.

[0032] Optionally, refer to Figure 1, a first annular limiting groove 343 may be provided on the outer wall of the protruding portion 830 of the conduit 340, one end of the annular diaphragm 400 (specifically, the inner ring of the annular diaphragm 400) may be overlapped on the first annular limiting groove 343, and the other end of the annular diaphragm 400 (specifically, the outer ring of the annular diaphragm 400) may be overlapped on the housing 200. The first annular limiting groove 343 may increase the contact area between the annular diaphragm 400 and the outer wall of the conduit 340 while limiting the annular diaphragm 400, which may ensure the setting stability of the annular diaphragm 400, thereby further ensuring the vibration stability of the annular diaphragm 400. Of course, in other embodiments, the outer wall of the conduit 340 may not be provided with the first annular limiting groove 343.

[0033] Optionally, since the annular diaphragm 400 is generally a flexible diaphragm, in order to facilitate the installation of the annular diaphragm 400 on the conduit 340 and the shell 200, a first copper ring may be provided at the inner ring of the annular diaphragm 400, and a second copper ring may be provided at the outer ring of the annular diaphragm 400, so that the annular diaphragm 400 can be installed on the conduit 340 and the shell 200 through the first copper ring and the second copper ring, that is, the first copper ring and the second copper ring can make it easier to install the annular diaphragm 400 on the conduit 340 and the shell 200.

[0034] Optionally, the fourth rear cavity 310 may be filled with reflective particles 311. When the sound waves enter the fourth rear cavity 310, the reflective particles 311 may enhance the bass frequency band through sound wave reflection and superposition, thereby achieving the effects of virtual expansion and volume increase. Of course, in other embodiments, the fourth rear cavity 310 may not be filled with reflective particles 311.

[0035] In this embodiment, to prevent the reflection particles 311 in the fourth rear cavity 310 from leaking, a first blocking net 347 may be provided at one end of the conduit 340 facing the first front cavity 110, and a second blocking net 344 may be provided at one end of the conduit 340 facing the third rear cavity 120. The first blocking net 347 and the second blocking net 344 may block the reflection particles 311 without affecting the normal propagation of sound waves. Optionally, the first blocking net 347 and the second blocking net 344 may both be blocking steel nets to increase the structural strength of the first blocking net 347 and the second blocking net 344.

[0036] Optionally, the reflective particles 311 may be made of silicon dioxide or aluminum oxide, or a mixture of silicon dioxide and aluminum oxide. Of course, the embodiment of the present application does not impose any specific limitation on this.

[0037] Optionally, a fourth annular limiting groove 348 may be provided at one end of the conduit 340 facing the first front cavity 110, and at least a portion of the edge of the first blocking net 347 is limited in the fourth annular limiting groove 348. A second annular limiting groove 345 may be provided at one end of the conduit 340 facing the third rear cavity 120, and at least a portion of the edge of the second blocking net 344 is limited in the second annular limiting groove 345, that is, the first blocking net 347 may be limited by the fourth annular limiting groove 348 to ensure the setting stability of the first blocking net 347, and the second blocking net 344 may be limited by the second annular limiting groove 345 to ensure the setting stability of the second blocking net 344, thereby ensuring the stability of the first blocking net 347 and the second blocking net 344 in blocking the reflective particles 311. At the same time, this arrangement can improve the compactness of the overall structure of the sound module. Of course, in other embodiments, the end of the conduit 340 facing the first front cavity 110 may not be provided with the fourth annular limiting groove 348 , and the end of the conduit 340 facing the third rear cavity 120 may not be provided with the second annular limiting groove 345 .

[0038] Optionally, the first inlet 330 may be a port of the end of the conduit 340 facing the third rear cavity 120, that is, the radial dimension of the first inlet 330 is relatively large. Optionally, the radial dimension of the first inlet 330 may be greater than or equal to 5 mm. Since the radial dimension of the first inlet 330 is relatively large, it can ensure that the sound waves can smoothly enter the fourth rear cavity 310 from the third rear cavity 120, that is, this arrangement can reduce the damping of the sound wave propagation, thereby avoiding affecting the low-frequency performance of the sound module. Of course, in other embodiments, the first inlet 330 may not be a port of the end of the conduit 340 facing the third rear cavity 120, that is, the first inlet 330 may specifically be an opening with a relatively small radial dimension opened at the end of the conduit 340 facing the third rear cavity 120.

[0039] When a second blocking net 344 is provided at one end of the conduit 340 facing the third rear cavity 120, the second blocking net 344 can cover the first inlet 330 and its size can be set relatively large. Since the second blocking net 344 is a mesh structure, sound waves can still pass through the second blocking net 344 to enter the fourth rear cavity 310 to a greater extent.

[0040] The sound module can also include an annular voice coil 500 and an annular magnet 600. The annular voice coil 500 and the annular magnet 600 are both arranged in the second rear cavity 210 and surround the duct 340. The annular voice coil 500 is connected to the annular diaphragm 400 and is located between the annular magnet 600 and the duct 340. When the annular voice coil 500 is energized, the annular voice coil 500 can drive the annular diaphragm 400 to vibrate under the action of the annular magnet 600, thereby enabling the sound module to achieve the effect of sound.

[0041] Optionally, in this embodiment, the basin frame 300 can be a magnetic part, that is, the material of the basin frame 300 can be a ferromagnetic material, such as stainless steel, or the basin frame 300 can be an electromagnetic part, or the basin frame 300 can be a permanent magnet, and correspondingly, the material of the conduit 340 can be a ferromagnetic material, or the conduit 340 can be an electromagnetic part, or the conduit 340 can be a permanent magnet. In this case, the conduit 340 cooperates with the annular magnet 600 to serve as a dual magnetic circuit to improve the acoustic performance of the sound module. Of course, in other embodiments, the basin frame 300 can also be a plastic part.

[0042] In this embodiment, since the basin frame 300 can be a magnetic member, optionally, the annular connecting plate 350 can also be a magnetic member. In this case, the annular magnet 600 can be adsorbed on the annular connecting plate 350 and arranged close to the housing 200, so that a space for arranging the annular voice coil 500 is formed between the annular magnet 600 and the conduit 340. It can be seen that this arrangement can facilitate the installation of the annular magnet 600 in the second rear cavity 210.

[0043] Optionally, the sound module may further include an annular magnetic conductive member 900, which is disposed in the second rear cavity 210 and is superimposed on the annular magnet 600. The annular magnetic conductive member 900 surrounds the annular voice coil 500. The annular magnetic conductive member 900 is generally made of a soft magnetic material, and the annular magnetic conductive member 900 can increase the density and strength of the magnetic field, so that the annular voice coil 500 and the annular diaphragm 400 can vibrate more effectively under a stronger magnetic field, thereby improving the sound quality and efficiency of the sound module. Of course, in other embodiments, the sound module may not include the annular magnetic conductive member 900.

[0044] Optionally, the entire first outlet 320 can be directed toward the annular magnet 600. Since the first outlet 320 is disposed on the annular connecting plate 350, there needs to be a certain gap between the annular magnet 600 and the annular connecting plate 350 to facilitate the sound waves to pass through the gap into the third rear cavity 120, that is, the annular magnet 600 needs to be suspended in the second rear cavity 210.

[0045] In another embodiment, in order to facilitate the installation of the annular magnet 600 and ensure the installation stability of the annular magnet 600, at least a portion of the first outlet 320 faces the area between the annular magnet 600 and the conduit 340, that is, faces the annular voice coil 500, so that the annular magnet 600 can be installed on the annular connecting plate 350, and at this time, the annular magnet 600 is not easy to block the first outlet 320, so that the sound waves generated when the annular diaphragm 400 vibrates can be smoothly transmitted through the first outlet 320, that is, not easily blocked by the annular magnet 600. At the same time, such a design makes the first outlet 320 closer to the conduit 340, which can shorten the distance between the first outlet 320 and the first inlet 330, so that the acoustic resistance of the sound waves after coming out of the first outlet 320 and propagating through the third rear cavity 120 and the first inlet 330 into the fourth rear cavity 310 can be well reduced.

[0046] Optionally, the first outlet 320 may be a circular hole, an arc-shaped hole or other special-shaped holes. Of course, the embodiment of the present application does not impose any specific limitation on this.

[0047] Optionally, refer to Figure 2 A sound outlet 130 may be provided on the housing 100 so that the second front cavity 111 can be connected to the external environment through the sound outlet 130, thereby ensuring that the earphone can produce sound normally.

[0048] Optionally, a third annular limiting groove 713 may be provided on one of the basin frame 300 and the front cavity support 700, and the other of the basin frame 300 and the front cavity support 700 may be limited in the third annular limiting groove 713 to ensure the matching stability of the basin frame 300 and the front cavity support 700, thereby improving the connection stability between the first rear cavity 711 and the fourth rear cavity 310, and the setting stability of the sound module. It can be seen that the third annular limiting groove 713 can play a role in positioning and assembling during the assembly of the basin frame 300 and the front cavity support 700. Of course, in other embodiments, the basin frame 300 and the front cavity support 700 may not be provided with the third annular limiting groove 713.

[0049] Optionally, the sound module may further include a seal 720, which is sealed with the basin frame 300 and the front cavity support 700 to ensure the sealing stability of the first rear cavity 711 and the fourth rear cavity 310, thereby ensuring the sealing of the acoustic rear cavity of the sound module. Optionally, the seal 720 may be foam, and the seal 720 may be installed in the third annular limiting groove 713. Of course, in other embodiments, the sound module may not include the seal 720.

[0050] Optionally, refer to Figure 2, the front cavity support 700 may include a partition 710 and a first support frame 730 connected to the partition 710, the partition 710 may separate the first front cavity 110 into the second front cavity 111 and the first rear cavity 711, the first support frame 730 may be attached to the inner wall of the first front cavity 110, that is, the first support frame 730 may be located in the first front cavity 110, so that the first support frame 730 can reduce the space of the first front cavity 110, that is, the space of the second front cavity 111 can be reduced to a certain extent, thereby improving the high-frequency performance of the sound module, and at the same time, one end of the first support frame 730 and one end of the partition 710 can support the shell 200 to improve the stability of the sound module in the shell 100. Of course, in other embodiments, the front cavity support 700 may not include the first support frame 730.

[0051] Optionally, the earphone may further include a battery 810 and a second support frame 820, the second support frame 820 being disposed in the third rear cavity 120 and used to support the battery 810, and the battery 810 being used to ensure the working stability of the sound module. To ensure that the second rear cavity 210, the third rear cavity 120 and the fourth rear cavity 310 can be effectively connected, a preset spacing is required between the second support frame 820 and the first inlet 330, so that the second support frame 820 has less damping on the propagation of sound waves. Optionally, the preset spacing may be greater than or equal to 0.2 mm.

[0052] In addition, since the present application adds an independent fourth rear cavity 310 in the sound module and utilizes part of the space of the first front cavity 110 to convert it into the rear cavity of the sound module, the volume of the acoustic rear cavity of the sound module can be significantly increased without affecting the battery life of the battery 810, thereby better improving the low-frequency performance of the sound module.

[0053] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A headset, characterized in that: Including shell, sound module and front cavity bracket, The sound module is arranged in the housing to form a first front cavity on a first side of the sound module; The front cavity support is arranged in the first front cavity to separate the first front cavity into a second front cavity and a first rear cavity; The sound module has a second rear cavity therein, and the second rear cavity is connected to the first rear cavity.

2. The earphone according to claim 1, characterized in that The earphone has a third back cavity formed on a second side of the sound module, and the second side and the first side are opposite sides of the sound module; The sound module comprises a shell, a basin and an annular diaphragm, the shell is provided with an opening facing the second front cavity, the basin is connected to the shell, at least part of the basin is located in the shell, the basin has a protruding portion extending to the first front cavity, and the protruding portion is connected to the front cavity bracket; The annular diaphragm surrounds the basin and is arranged at the opening, so that the shell, the basin and the annular diaphragm form the second rear cavity, the basin has a fourth rear cavity, the basin is provided with a first inlet and a plurality of first outlets at intervals, the plurality of first outlets connect the third rear cavity with the second rear cavity, the first inlet connects the third rear cavity with the fourth rear cavity, the fourth rear cavity is connected to the first rear cavity, so that the second rear cavity, the third rear cavity, the fourth rear cavity and the first rear cavity are connected in sequence.

3. The earphone according to claim 2, characterized in that The basin frame includes a conduit and an annular connecting plate protruding from the conduit and extending along the circumference of the conduit, the conduit has the fourth rear cavity, the annular connecting plate is connected to the shell, the annular diaphragm, the shell, the annular connecting plate and the conduit form the second rear cavity, the annular connecting plate is provided with the multiple first outlets, and the multiple first outlets are arranged at intervals along the circumference of the connection between the conduit and the annular connecting plate, and the annular connecting plate is connected to one end of the conduit facing the third rear cavity.

4. The earphone according to claim 3, characterized in that: The protruding portion is disposed at one end of the conduit facing the first front cavity so that the fourth rear cavity is communicated with the first rear cavity, and the first inlet is disposed at one end of the conduit facing the third rear cavity.

5. The earphone according to claim 4, characterized in that: The conduit comprises a first tube body and a second tube body that are connected, the first tube body is located in the shell, one end of the second tube body is provided with the protruding portion, and the radial dimension of the first tube body is greater than the radial dimension of the second tube body.

6. The earphone according to claim 3, characterized in that: A first annular limiting groove is provided on the outer wall of the protruding portion of the conduit, one end of the annular diaphragm is overlapped on the first annular limiting groove, and the other end of the annular diaphragm is overlapped on the shell.

7. The earphone according to claim 3, characterized in that The fourth rear cavity is filled with reflective particles, and the end of the conduit facing the first front cavity is provided with a first blocking net, and the end of the conduit facing the third rear cavity is provided with a second blocking net; A fourth annular limiting groove is provided at one end of the catheter facing the first front cavity, and at least a portion of an edge of the first blocking net is limited in the fourth annular limiting groove. A second annular limiting groove is provided at one end of the catheter facing the third rear cavity, and at least a portion of an edge of the second blocking net is limited in the second annular limiting groove.

8. The earphone according to claim 3, characterized in that: The first inlet is a port of one end of the catheter facing the third rear cavity.

9. The earphone according to claim 3, characterized in that: The sound module also includes an annular voice coil and an annular magnet. The annular voice coil and the annular magnet are both arranged in the second rear cavity and surround the duct. The annular voice coil is connected to the annular diaphragm and is located between the annular magnet and the duct. The basin frame is a magnetic component.

10. The earphone according to claim 9, characterized in that The sound module also includes an annular magnetic conductive component, which is arranged in the second rear cavity and superimposed on the annular magnet, and the annular magnetic conductive component surrounds the annular voice coil.

11. The earphone according to claim 9, characterized in that At least a portion of the first outlet is oriented toward a region between the annular magnet and the conduit.

12. The earphone according to claim 2, characterized in that A third annular limiting groove is provided on one of the basin frame and the front cavity support, and the other of the basin frame and the front cavity support is limited in the third annular limiting groove; and / or, The sound module also includes a sealing member, which is sealed with the basin frame and the front cavity support.

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