Earphone

Abstract

The utility model relates to the technical field of earphones, in particular to an earphone. The earphone comprises a shell, the shell comprises a front shell and a middle shell, the front shell and the middle shell are oppositely installed to form a sound cavity, and a loudspeaker support is arranged in the sound cavity; one end of the front shell is provided with a sound outlet, the loudspeaker support is installed on the front shell close to the sound outlet, the loudspeaker is installed on the loudspeaker support and the front shell close to the sound outlet, and the loudspeaker, the loudspeaker support and the shell are connected to one side of the sound outlet in a sealed mode to form a front cavity. A mounting convex part is arranged on the loudspeaker support, a mounting opening is formed in the front shell, the mounting convex part is embedded in the mounting opening, and a front pressure relief hole is formed in the mounting convex part. According to the earphone of the utility model, the internal parts can be prevented from shielding the pressure relief hole, and the arrangement of the internal parts and the arrangement of the pressure relief hole are free, thereby facilitating the design of the earphone.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an earphone. Background Art

[0002] Bluetooth earphones are a type of wireless earphones that connect to audio source devices (such as mobile phones, tablets, or computers) via Bluetooth technology without the need for traditional wired connections. The use of Bluetooth earphones brings many conveniences. For example, it eliminates the annoying cable entanglement problem, allowing users to move more freely without being restricted by wires.

[0003] Bluetooth earphones need to be provided with pressure relief holes on the housing to keep the pressure inside and outside the earphones balanced to ensure the sound quality effect. Since the pressure relief holes need to communicate with the sound cavity inside the earphones, when opening them on the housing, the layout of other internal components such as speakers needs to be considered to avoid these components blocking the pressure relief holes. This imposes significant limitations on the layout of other components inside the earphones and the opening of the pressure relief holes, making it inconvenient for the design of Bluetooth earphones. Summary of the Utility Model

[0004] Embodiments of the utility model provide an earphone to solve the problem in the prior art that the layout of other components inside the earphone and the opening of the pressure relief holes are subject to significant limitations, making it inconvenient for the design of Bluetooth earphones.

[0005] The utility model discloses an earphone, including a housing. The housing includes a front shell and a middle shell. The front shell and the middle shell are assembled and installed to form a sound cavity, and a speaker bracket is arranged in the sound cavity; one end of the front shell is provided with a sound outlet. The speaker bracket is installed on the front shell near the sound outlet, and the speaker is installed on the speaker bracket and the front shell near the sound outlet and is hermetically connected to the speaker bracket and the housing to form a front cavity on one side of the sound outlet.

[0006] The speaker bracket is provided with an installation convex portion, and the front shell is provided with an installation opening. The installation convex portion is embedded in the installation opening, and a front pressure relief hole is opened on the installation convex portion.

[0007] Optionally, two front pressure relief holes are opened on the installation convex portion.

[0008] Optionally, a first through hole is opened on the speaker bracket, and the first through hole is arranged corresponding to the sound outlet.

[0009] Optionally, a battery and a battery bracket are arranged in the sound cavity. The battery bracket is installed on the middle shell, and the battery is installed on the battery bracket.

[0010] Optionally, in the area of the sound cavity away from the front cavity, the battery is installed on the side of the battery bracket away from the speaker; the battery bracket, the speaker, and the middle shell are hermetically connected to form a rear cavity in a partial area of the sound cavity.

[0011] Optionally, a first through hole is opened on the speaker bracket beside the first through hole, the earphone includes a noise reduction microphone, the noise reduction microphone is installed on the speaker bracket at the first through hole, and the first through hole is at the sound outlet.

[0012] Optionally, the earphone includes a flexible circuit board, the noise reduction microphone is electrically connected and mounted on the flexible circuit board, mounting posts are provided on both sides of the first through hole, and the flexible circuit board is mounted on the two mounting posts.

[0013] Optionally, a guide support block is provided at the edge of the speaker bracket, and the flexible circuit board is led to a side of the speaker bracket away from the front cavity through the guide support block, and the edge of the speaker is supported on the guide support block.

[0014] Optionally, a guide groove extending from the edge to the mounting column is provided on the side of the speaker bracket facing the front cavity, and the flexible circuit board is led to the noise reduction microphone through the guide groove and is electrically connected to the noise reduction microphone.

[0015] Optionally, a supporting edge is provided on the edge of the speaker bracket at the opposite side of the guide support block, and a step surface is provided on the inner side surface of the supporting edge, and the speaker edge is supported on the step surface.

[0016] Compared with the prior art, the beneficial effect of the earphone provided by the embodiment of the utility model is that the earphone of the utility model is equipped with a speaker bracket on the front shell. The speaker bracket, as one of the parts in the earphone, provides an installation position for the speaker, ensuring that the speaker is firmly installed in the correct position. Since the speakers are in the front cavity, the utility model further opens the front pressure relief hole on the installation convex part on the speaker bracket, and at the same time opens the installation opening on the front shell, and installs the installation convex part in the installation opening. In this way, firstly, the speakers can be quickly, conveniently and firmly assembled on the front shell, and secondly, the front cavity is connected with the outside world by setting the front pressure relief hole on the installation convex part, and the front shell does not need to open the pressure relief hole, and since the speaker bracket itself is in the front cavity for supporting the installation of the speaker, there is no need to consider the problem that the front pressure relief hole will be blocked; thirdly, the speaker bracket, as one of the parts in the shell, not only plays its own role but also solves the problem of setting the front pressure relief hole, and can also be more comfortable when arranging other parts such as speakers and the following batteries and battery brackets. Therefore, the earphone of the present invention can prevent the internal parts from blocking the pressure relief hole, and the layout of the internal parts and the opening of the pressure relief hole are also relatively free, which is convenient for the design of the earphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 is a schematic diagram of an earphone according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of the earphone in the embodiment of the present utility model;

[0020] Figure 3 It is an exploded schematic view of the earphone in the embodiment of the present utility model;

[0021] Figure 4 It is a schematic view of the battery, battery bracket, speaker and speaker bracket in the embodiment of the present utility model;

[0022] Figure 5 It is a schematic view of the speaker bracket in the embodiment of the present utility model;

[0023] Figure 6 It is a schematic view of the speaker bracket and flexible circuit board in the embodiment of the present utility model;

[0024] Figure 7 It is another schematic view of the speaker bracket and flexible circuit board in the embodiment of the present utility model.

[0025] Each reference numeral in the figure is as follows:

[0026] 1, housing; 11, sound cavity; 111, front cavity; 112, rear cavity; 12, sound outlet; 13, rear pressure relief hole; 14, installation opening; 15, front shell; 16, middle shell; 2, battery bracket; 3, battery; 4, speaker; 5, speaker bracket; 51, first through port; 52, installation convex part; 521, front pressure relief hole; 53, first through hole; 54, guiding support block; 55, guiding groove; 56, supporting edge; 561, stepped surface; 57, installation post; 6, noise reduction microphone; 7, flexible circuit board; 8, main control circuit board. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. Now, with reference to the accompanying drawings, the preferred embodiments of the present utility model will be described in detail.

[0028] The embodiment of the present utility model provides an earphone, as Figures 1 to 3 , Figure 6 shown, the earphone includes a housing 1, the housing 1 includes a front shell 15 and a middle shell 16, and the front shell 15 and the middle shell 16 are assembled and installed to form a sound cavity 11. An end of the front shell 15 is provided with a sound outlet 12, the speaker bracket 5 is installed on the front shell 15 near the sound outlet 12, the speaker 4 is installed on the speaker bracket 5 and the front shell 15 near the sound outlet 12, and is hermetically connected to the speaker bracket 5 and the housing 1 to form a front cavity 111 on one side of the sound outlet 12.

[0029] The speaker bracket 5 is provided with an installation convex part 52, the front shell 15 is provided with an installation opening 14, the installation convex part 52 is embedded in the installation opening 14, and the installation convex part 52 is provided with a front pressure relief hole 521.

[0030] In the earphone of the present utility model, a speaker bracket 5 is installed on the front shell 15. As one of the components inside the earphone, the speaker bracket 5 provides an installation position for the speaker 4, ensuring that the speaker 4 is firmly installed in the correct position. Since the speaker bracket 5 is located in the front cavity 111, the present utility model further opens a front pressure relief hole 521 on the mounting convex portion 52 of the speaker bracket 5, and at the same time opens a mounting opening 14 on the front shell 15, and installs the mounting convex portion 52 in the mounting opening 14. In this way, firstly, the speaker bracket 5 can be quickly, conveniently and firmly assembled on the front shell 15; secondly, the front cavity 111 is connected to the outside by setting the front pressure relief hole 521 on the mounting convex portion 52, and there is no need to open a pressure relief hole on the front shell 15. And since the speaker bracket 5 itself is located in the front cavity 111 for supporting and installing the speaker 4, there is no need to consider the problem that the front pressure relief hole 521 will be blocked; thirdly, as one of the components inside the housing 1, the speaker bracket 5 not only plays its own role but also solves the problem of setting the front pressure relief hole 521, and when arranging other components such as the speaker 4 and the battery 3 and the battery bracket 2 described below, it can be more flexible. Therefore, the earphone of the present utility model can avoid the internal components from blocking the pressure relief hole, and the arrangement of the internal components and the opening of the pressure relief hole are relatively flexible, and the space for arranging the overall components is relatively large, which is convenient for the design of the earphone.

[0031] Furthermore, since the speaker bracket 5 itself is located in the front cavity 111, as long as the front pressure relief hole 521 is opened on the mounting convex portion 52, the front cavity 111 can be connected to the outside, ensuring the pressure balance inside and outside the earphone. And there are no great requirements for the design of the mounting convex portion 52 and the mounting opening 14 on the front shell 15, and there will be no interference or influence on the arrangement or use of other components. Therefore, the design of the mounting convex portion 52 and the mounting opening 14 is relatively free, which can ensure the overall design freedom of the earphone.

[0032] The present utility model forms a front cavity 111 by setting the speaker 4, the speaker bracket 5 and the front shell 15 to be hermetically connected together. In this way, while ensuring the normal function of the front pressure relief hole 521, the space of the front cavity 111 is relatively small, which can save the remaining space of the sound cavity 11. The remaining space can be used to assemble other components, which is beneficial to the miniaturization of the earphone. The sound outlet 12 is arranged on the front shell 15 and is inserted into the user's ear canal during use, and the sound generated by the speaker 4 is transmitted through the sound outlet 12. Specifically, the front shell 15 and the middle shell 16 are bonded by glue, and the speaker bracket 5 can also be further bonded to the front shell 15 by glue. Specifically, the technical solution of the present utility model is particularly applicable to earphones (TWS+ANC dual-feed noise-canceling earphones) that integrate True Wireless Stereo (TWS) technology and Active Noise Cancelling (ANC) function.

[0033] Furthermore, two front pressure relief holes 521 are provided in the installation convex part 52. In this solution, two front pressure relief holes 521 are provided in the installation convex part 52. Without affecting the layout of other parts when both of the two front pressure relief holes 521 are opened, the front cavity 111 has a double tone hole structure, which can improve the mid-frequency and high-frequency effects of sound and bring an excellent user experience.

[0034] Specifically, further in combination with Figure 5 As shown, a first through hole 51 is provided in the speaker bracket 5, and the first through hole 51 is arranged corresponding to the sound outlet 12. In this solution, a first through hole 51 is further provided in the speaker bracket 5. The first through hole 51 can ensure the communication between the front cavity 111 and the sound outlet 12 and avoid the speaker bracket 5 from blocking the sound outlet 12. Specifically, the opening size of the first through hole 51 can be slightly smaller than that of the sound outlet 12. A mesh cover can be further provided at the sound outlet 12 to block the first through hole 51 and the speaker bracket 5. The shape of the first through hole 51 can be set as required and is not specifically limited here.

[0035] A battery 3 and a battery bracket 2 are arranged in the sound cavity 11. The battery bracket 2 is installed on the middle shell 16, and the battery 3 is installed on the battery bracket 2. The battery bracket 2 provides an installation position for the battery 3, and the battery bracket 2 can be installed on the middle shell 16 by means such as glue or a snap structure. Specifically, in the area of the sound cavity 11 away from the front cavity 111, the battery 3 is installed on the side of the battery bracket 2 away from the speaker 4; the battery bracket 2, the speaker 4 and the middle shell 16 are hermetically connected to form a rear cavity 112 in a part of the sound cavity 11. By arranging the battery bracket 2, the battery 3, the speaker 4 and the middle shell 16 to cooperate together to form an independent rear cavity 112, it can ensure the normal function of the rear pressure relief hole 13 while the space of the rear cavity 112 is relatively small, which can save the remaining space of the sound cavity 11. The remaining space can be used for assembling other parts, which is beneficial to the miniaturization of the earphone. The front cavity 111 and the rear cavity 112 are respectively on both sides of the speaker 4 and respectively correspond to the opening of the front pressure relief hole 521 and the rear pressure relief hole 13, balancing the pressure balance between the front cavity 111 and the rear cavity 112 on both sides of the speaker 4 and the outside world and ensuring the sound quality of the earphone.

[0036] Further in combination with Figure 4 、 Figure 6 and Figure 7As shown, beside the first through hole 51, a first through hole 53 is formed in the speaker bracket 5. The earphone includes a noise-canceling microphone 6, which is installed on the speaker bracket 5 at the first through hole 53, and the first through hole 53 is located at the sound outlet 12. The noise-canceling microphone 6 is a special microphone used to reduce the impact of environmental noise, which can help users communicate or record sounds more clearly in a noisy environment. The noise-canceling microphone 6 collects the noise in the environment, compares it with the main sound source (such as human voice), and then outputs an opposite sound wave signal to cancel the environmental noise, thereby reducing the noise level heard by the user. In this solution, the speaker bracket 5 can provide the installation position and structure for the noise-canceling microphone 6. At the same time, a first through hole 53 is formed in the speaker bracket 5, and the first through hole 53 is arranged at the sound outlet 12, which is convenient for the noise-canceling microphone 6 to receive sound. Specifically, installing the noise-canceling microphone 6 close to the sound outlet 12 can more effectively capture the audio signal for noise reduction processing. This position can more accurately capture the sound signal for noise reduction processing when the user is speaking or listening to sounds, which helps to reduce interference and improve the accuracy of sound collection, and minimizes the impact of external environmental noise as much as possible, thereby improving the noise reduction effect.

[0037] The earphone includes a flexible circuit board 7. The noise-canceling microphone 6 is electrically connected and installed on the flexible circuit board 7 (Flexible Printed Circuit). Mounting posts 57 are provided on both sides of the first through hole 53, and the flexible circuit board 7 is installed on the two mounting posts 57. By providing the mounting posts 57 on both sides of the first through hole 53, the flexible circuit board 7 can be stably installed inside the earphone, providing good support and protection, thereby effectively preventing damage to the flexible circuit board 7 caused by accidental collision or vibration during use. The noise-canceling microphone 6 is electrically connected and installed on the flexible circuit board 7, and the flexible circuit board 7 is fixed by the mounting posts 57. This design can ensure a stable and reliable connection between the noise-canceling microphone 6 and the flexible circuit board 7, avoiding functional problems caused by poor connection. And by using the mounting posts 57 to fix the flexible circuit board 7 in place, the assembly process can be made more simple and efficient. The mounting posts 57 help to ensure the correct position of the circuit board and are also helpful for subsequent maintenance and repair.

[0038] The flexible circuit board 7, also known as a Flexible Printed Circuit (FPC), is a flexible circuit board composed of a flexible substrate (usually a polyester film or a polyamide film) and a conductive circuit. The flexible circuit board 7 can be bent, folded, and curved, enabling it to better adapt to complex internal structures and space limitations, thus achieving a more flexible and compact layout. Specifically, a main control circuit board 8 is also provided inside the earphone. The noise reduction microphone 6 is electrically connected to the main control circuit board 8 through the flexible circuit board 7, thereby realizing the acquisition, transmission, and processing of sound signals. Additionally, the battery 3 and the speaker 4 are also directly or indirectly electrically connected to the main control circuit board 8 to enable the normal operation of the battery 3 and the speaker 4.

[0039] A guiding support block 54 is provided at the edge of the speaker bracket 5. The flexible circuit board 7 is led to the side of the speaker bracket 5 facing away from the front cavity 111 through the guiding support block 54, and the edge of the speaker 4 is supported on the guiding support block 54. The guiding support block 54 helps to guide the flexible circuit board 7 to the correct position, ensuring that the circuit board is correctly connected to the speaker bracket 5 and is located in the appropriate position. The edge of the speaker 4 being supported on the guiding support block 54 can provide additional support and stability, preventing the speaker 4 from loosening or being damaged due to vibration or movement during use. By having the edge of the speaker 4 supported on the guiding support block 54, it can ensure a firm and reliable connection between the speaker 4 and the flexible circuit board 7, avoiding performance issues caused by improper connection.

[0040] Furthermore, a guiding groove 55 extending from the edge to the mounting post 57 is provided on the side of the speaker bracket 5 facing the front cavity 111. The flexible circuit board 7 is led to the noise reduction microphone 6 through the guiding groove 55 and is electrically connected to the noise reduction microphone 6. The provision of the guiding groove 55 can help accurately position the flexible circuit board 7, ensuring that it is connected to the noise reduction microphone 6 at a specific position, which helps to improve the accuracy and stability of the connection. Through the setting of the guiding groove 55, it can also effectively protect the flexible circuit board 7 from accidental damage or excessive bending, thereby extending its service life and improving the reliability of the earphone, and also facilitating the assembly between the speaker bracket 5 and the flexible circuit board 7.

[0041] On the opposite side of the guiding support block 54, a support edge 56 is provided at the edge of the speaker bracket 5. A stepped surface 561 is provided on the inner side of the support edge 56, and the edge of the speaker 4 is supported on the stepped surface 561. The edge of the speaker 4 being supported on the stepped surface 561 can provide firm support, ensuring that the speaker 4 can be correctly aligned and maintain a stable connection during installation, avoiding problems caused by loosening or displacement. Through the design of the stepped surface 561, the edge of the speaker bracket 5 can be more easily aligned with the support edge 56, ensuring the correct positioning of the speaker 4.

[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some of the technical features can be equivalently replaced; and all such modifications and replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. A headset, characterized in that: The housing comprises a front housing and a middle housing, wherein the front housing and the middle housing are mounted together to form a sound cavity, and a speaker bracket is arranged in the sound cavity; a sound outlet is arranged at one end of the front housing, the speaker bracket is mounted on the front housing near the sound outlet, the speaker is mounted on the speaker bracket and the front housing near the sound outlet, and is sealed and connected with the speaker bracket and the housing to form a front cavity on one side of the sound outlet; The speaker bracket is provided with a mounting protrusion, the front shell is provided with a mounting opening, the mounting protrusion is embedded in the mounting opening, and the mounting protrusion is provided with a front pressure relief hole.

2. The earphone according to claim 1, characterized in that Two front pressure relief holes are arranged on the installation protrusion.

3. The earphone according to claim 1, characterized in that The speaker bracket is provided with a first opening, and the first opening is arranged corresponding to the sound outlet.

4. The earphone according to any one of claims 1 to 3, characterized in that: A battery and a battery bracket are arranged in the sound cavity. The battery bracket is mounted on the middle shell, and the battery is mounted on the battery bracket.

5. The earphone according to claim 4, characterized in that: In the area of ​​the sound cavity away from the front cavity, the battery is installed on the side of the battery holder away from the speaker; the battery holder, the speaker and the middle shell are sealed and connected to form a rear cavity in a partial area of ​​the sound cavity.

6. The earphone according to claim 3, characterized in that: A first through hole is formed on the speaker bracket beside the first through hole. The earphone includes a noise reduction microphone installed on the speaker bracket at the first through hole. The first through hole is located at the sound outlet.

7. The earphone according to claim 6, characterized in that The earphone comprises a flexible circuit board, the noise reduction microphone is electrically connected and mounted on the flexible circuit board, mounting posts are arranged on both sides of the first through hole, and the flexible circuit board is mounted on the two mounting posts.

8. The earphone according to claim 7, characterized in that: A guide support block is arranged at the edge of the speaker bracket, the flexible circuit board is led to the side of the speaker bracket away from the front cavity through the guide support block, and the speaker edge is supported on the guide support block.

9. The earphone according to claim 8, characterized in that A guide groove extending from an edge to the mounting post is provided on one side of the speaker bracket facing the front cavity, and the flexible circuit board is led to the noise reduction microphone through the guide groove and is electrically connected to the noise reduction microphone.

10. The earphone according to claim 8, characterized in that On the opposite side of the guide support block, a supporting edge is arranged on the edge of the speaker bracket, and a step surface is arranged on the inner side surface of the supporting edge, and the speaker edge is supported on the step surface.

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