TWS earphone

Abstract

The utility model discloses a TWS earphone, and particularly relates to an intelligent earphone, which comprises an earphone shell, a main control board and an elastic sound guide piece, the earphone shell is provided with a sound inlet hole. The main control board is arranged in the ear shell, the main control board is provided with a microphone hole, and the axial direction of the microphone hole and the axial direction of the sound inlet hole form an included angle; the inner wall of the earphone shell is connected with a mounting part, a mounting groove communicated with the sound inlet hole is formed in the mounting part, a groove opening of the mounting groove is opposite to the microphone hole, and an insertion opening communicated with the mounting groove is formed in the side, opposite to the sound inlet hole, of the mounting part; the elastic sound guide part is arranged in the mounting groove and used for communicating the sound inlet hole with the microphone hole, and the elastic sound guide part is in interference fit with the main control board and seals the periphery of the microphone hole; wherein the width of the end, close to the sound inlet hole, of the elastic sound guide piece is smaller than that of the insertion opening, the width of the end, away from the sound inlet hole, of the elastic sound guide piece is larger than that of the insertion opening, and the end, away from the sound inlet hole, of the elastic sound guide piece is squeezed into the installation groove.

Description

Technical Field

[0001] The utility model relates to the technical field of audio equipment, and in particular to a TWS earphone. Background Art

[0002] In TWS earphones, the sound inlet on the ear shell and the microphone hole on the main control board are usually not on the same plane, but at a certain distance. They need to be connected with a sound guide tube to transmit external sound to the microphone. In order to ensure the call quality, the sound guide tube needs to be in close contact with the main control board to prevent air leakage. Therefore, elastic materials such as silicone are usually used to make the sound guide tube.

[0003] In the related art, a mounting groove is usually set on the inner wall of the ear shell to install the sound guide tube. However, since the size of the sound guide tube is usually larger than the size of the slot of the mounting groove, when installing the sound guide tube, the sound guide tube needs to be slowly inserted into the mounting groove through the slot of the mounting groove, which is inconvenient to install. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a TWS earphone, which can ensure airtightness and reduce the difficulty of installing the sound guide component.

[0005] According to some embodiments of the present invention, a TWS earphone comprises an ear shell, a main control board and an elastic sound guide; the ear shell is provided with a sound inlet hole; the main control board is arranged inside the ear shell, and the main control board is provided with a microphone hole, and the axial direction of the microphone hole is arranged at an angle with the axial direction of the sound inlet hole; the inner wall of the ear shell is connected with a mounting portion, the mounting portion is formed with a mounting groove connected with the sound inlet hole, the notch of the mounting groove is arranged opposite to the microphone hole, and the side of the mounting portion opposite to the sound inlet hole is provided with an insertion port connected with the mounting groove; the elastic sound guide is arranged in the mounting groove, and is used to connect the sound inlet hole and the microphone hole, and the elastic sound guide is interference fit with the main control board and seals the periphery of the microphone hole;

[0006] Among them, the width of the elastic sound guide part at one end close to the sound inlet hole is smaller than the width of the insertion port, the width of the elastic sound guide part at one end away from the sound inlet hole is larger than the width of the insertion port, and the end of the elastic sound guide part away from the sound inlet hole is squeezed into the installation groove.

[0007] The TWS earphone according to the embodiment of the utility model has at least the following beneficial effects:

[0008] When assembling the TWS earphone of the utility model, the main control board can be installed into the ear shell first, and then the elastic sound guide can be inserted into the installation groove through the insertion port to realize the installation of the elastic sound guide. After the elastic sound guide is installed into the installation groove, due to its own elastic force, it will automatically expand in all directions, so as to realize the close contact between the elastic sound guide and the surrounding of the microphone hole. In the process of installing the elastic sound guide into the installation groove, the end of the elastic sound guide close to the sound inlet hole can be inserted into the installation groove through the insertion port first. Since the width of the end of the elastic sound guide close to the sound inlet hole is smaller than the width of the insertion port, the elastic sound guide can be easily inserted into the installation groove; in addition, although the width of the end of the elastic sound guide away from the sound inlet hole is greater than the width of the insertion port, since the elastic sound guide can be compressed after being pressed, a little force can also make the end of the elastic sound guide away from the sound inlet hole inserted into the installation groove through the insertion port, so that the elastic sound guide is buckled in the installation groove to prevent it from falling out.

[0009] According to some embodiments of the utility model, the end of the elastic sound guide away from the sound inlet hole is defined as the rear end of the elastic sound guide, the rear end of the elastic sound guide is provided with undercut portions on both sides along the width direction of the elastic sound guide, the insertion port is provided with limiting portions on both sides along the width direction of the insertion port, and the undercut portions are located in the installation groove and are against the limiting portions.

[0010] According to some embodiments of the utility model, the mounting portion includes a first side wall arranged opposite to a notch of the mounting groove, a second side wall connected to the first side wall and located on one side of the notch of the mounting groove, and a third side wall connected to the first side wall and arranged opposite to the second side wall, the third side wall is located on the other side of the notch of the mounting groove, and the third side wall and the second side wall are spaced apart along the width direction of the mounting groove, the third side wall and the second side wall are both connected to the limiting portion, and the space between the two limiting portions is the insertion port.

[0011] According to some embodiments of the present invention, a sealing edge for sealing the notch of the installation slot is provided on one side of the elastic sound guide member close to the main control board.

[0012] According to some embodiments of the present invention, the elastic sound guide is made of silicone, rubber, TPV or EPDM.

[0013] According to some embodiments of the utility model, the elastic sound guide member is provided with a sound guide channel, the inlet of the sound guide channel is arranged opposite to the sound inlet hole, and the outlet of the sound guide channel is arranged opposite to the microphone hole; the size of the inlet of the sound guide channel is larger than the size of the sound inlet hole.

[0014] According to some embodiments of the present invention, the size of the outlet of the sound guide channel is larger than the size of the microphone hole.

[0015] According to some embodiments of the present invention, the inner wall of the ear shell is further connected to a supporting portion, and the supporting portion is arranged on a side of the main control board away from the mounting portion and supports the main control board.

[0016] According to some embodiments of the utility model, the TWS earphones further include a waterproof membrane, which is disposed in the mounting groove and covers the sound inlet hole, and the elastic sound guide is interference fit with the waterproof membrane.

[0017] According to some embodiments of the utility model, a microphone is further provided on the main control board, a sound pickup hole of the microphone is arranged opposite to the microphone hole, and the microphone is located on a side of the main control board away from the mounting portion.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a partial structural diagram of a TWS headset according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the figure shown;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 for Figure 1 The figure shown is a schematic diagram of the structure behind the main control board;

[0024] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0025] Figure 6 The figure is a schematic structural diagram of an elastic sound guide member according to an embodiment of the utility model.

[0026] Figure Number:

[0027] 100, ear shell; 110, mounting portion; 110a, first side wall; 110b, second side wall; 110c, third side wall; 110d, limiting portion; 111, insertion port; 112, mounting groove; 120, sound inlet hole; 130, supporting portion;

[0028] 200, main control board; 210, microphone hole;

[0029] 300, elastic sound guide; 301, front end; 302, rear end; 310, sound guide channel; 320, undercut portion; 330, sealing edge;

[0030] 400, microphone;

[0031] 500. Waterproof membrane. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Figure 1The partial structure of a TWS headset of an embodiment of the present application is shown, which includes an ear shell 100, a main control board 200 and an elastic sound guide 300. The TWS headset is a smart headset, and the TWS headset can be configured with a call noise reduction function and / or an artificial intelligence noise reduction function, and can also be configured with stereo surround and other functions.

[0036] Combination Figure 1 and Figure 2 The ear shell 100 is a hollow structure, and the ear shell 100 is provided with a sound inlet hole 120, which is connected to the internal space of the ear shell 100.

[0037] Combination Figure 2 and Figure 3 The main control board 200 is disposed inside the ear shell 100 , and the main control board 200 is provided with a microphone hole 210 , and the axial direction of the microphone hole 210 is arranged at an angle with the axial direction of the sound inlet hole 120 .

[0038] Specifically, the microphone 400 is arranged on the main control board 200, and a microphone hole 210 is arranged opposite to the sound pickup hole of the microphone 400 on the main control board 200; the main control board 200 is fixed inside the ear shell 100 and the axial direction of the microphone hole 210 is arranged to cross the axial direction of the sound inlet hole 120.

[0039] Specifically in this embodiment, the angle between the axial direction of the microphone hole 210 and the axial direction of the sound inlet hole 120 is between 80° and 100°.

[0040] Furthermore, the inner wall of the ear shell 100 is connected with a mounting portion 110, and the mounting portion 110 is formed with a mounting groove 112 connected to the sound inlet 120, and the notch of the mounting groove 112 is arranged opposite to the microphone hole 210. The microphone head 400 is located on a side of the main control board 200 away from the mounting portion 110.

[0041] Specifically, the mounting portion 110 is connected to the inner wall of the ear shell 100 , and the mounting groove 112 formed by the mounting portion 110 is connected to the sound inlet 120 , and the notch of the mounting groove 112 is arranged opposite to the microphone hole 210 on the main control board 200 .

[0042] Furthermore, an insertion port 111 communicating with the mounting groove 112 is provided on a side of the mounting portion 110 opposite to the sound inlet hole 120 . The insertion port 111 is used for inserting the elastic sound guide 300 so that the elastic sound guide 300 is installed in the mounting groove 112 .

[0043] Specifically, when the elastic sound guide 300 is inserted into the mounting groove 112 through the insertion opening 111 , the elastic sound guide 300 is used to connect the sound inlet 120 and the microphone hole 210 , and the elastic sound guide 300 is interference-fitted with the main control board 200 .

[0044] It should be noted that the elastic sound guide 300 is made of silicone, rubber, TPV or EPDM, etc. The elastic sound guide 300 is provided with a sound guide channel 310, the inlet of the sound guide channel 310 is arranged opposite to the sound inlet hole 120, and the outlet of the sound guide channel 310 is arranged opposite to the microphone hole 210. After the external sound enters the TWS earphone through the sound inlet hole 120, it can be guided to the microphone hole 210 under the action of the elastic sound guide 300 to be transmitted to the microphone head 400. Among them, the elastic sound guide 300 and the main control board 200 have an interference fit, which can ensure the sealing between the elastic sound guide 300 and the main control board 200, thereby reducing the risk of reduced call quality due to air leakage.

[0045] When assembling the TWS earphone of the present invention, the main control board 200 with the microphone 400 can be first installed in the ear shell 100, and the microphone 400 can be located on the side of the main control board 200 away from the mounting portion 110, and then the elastic sound guide 300 can be inserted into the mounting groove 112 through the insertion port 111 to achieve the installation of the elastic sound guide 300. After the elastic sound guide 300 is installed in the mounting groove 112, due to its own elastic force, it will automatically expand in all directions, thereby achieving close contact between the elastic sound guide 300 and the periphery of the microphone hole 210.

[0046] like Figures 3 to 6 As shown, further, the width of the end of the elastic sound guide 300 close to the sound inlet hole 120 is smaller than the width of the insertion port 111, the width of the end of the elastic sound guide 300 away from the sound inlet hole 120 is greater than the width of the insertion port 111, and the end of the elastic sound guide 300 away from the sound inlet hole 120 is squeezed into the installation groove 112 and abuts against the installation groove 112 and the inner wall of the installation groove 112.

[0047] It can be understood that in the process of installing the elastic sound guide 300 into the mounting groove 112, the end of the elastic sound guide 300 close to the sound inlet hole 120 can be first inserted into the mounting groove 112 through the insertion port 111. Since the width of the end of the elastic sound guide 300 close to the sound inlet hole 120 is smaller than the width of the insertion port 111, the elastic sound guide 300 can be easily inserted into the mounting groove 112. In addition, although the width of the end of the elastic sound guide 300 away from the sound inlet hole 120 is greater than the width of the insertion port 111, since the elastic sound guide 300 can be compressed after being pressed, with a little force, the end of the elastic sound guide 300 away from the sound inlet hole 120 can be inserted into the mounting groove 112 through the insertion port 111, so that the elastic sound guide 300 is upside down in the mounting groove 112 to prevent it from falling out.

[0048] Combination Figure 5 and Figure 6, the end of the elastic sound guide 300 close to the sound inlet hole 120 is defined as the front end 301 of the elastic sound guide 300, and the end of the elastic sound guide 300 away from the sound inlet hole 120 is defined as the rear end 302 of the elastic sound guide 300. The elastic sound guide 300 can be inserted from the front to the back through the insertion port 111 and inserted into the installation groove 112.

[0049] Among them, the rear end 302 of the elastic sound guide 300 is provided with undercut portions 320 on both sides along the width direction of the elastic sound guide 300, and the insertion port 111 is provided with limiting portions 110d on both sides along the width direction of the insertion port 111. The undercut portions 320 are located in the installation groove 112 and are against the limiting portions 110d.

[0050] It can be understood that by providing undercut portions 320 on both sides of the rear end 302 of the elastic sound guide 300 along the width direction of the elastic sound guide 300, the width of the rear end 302 of the elastic sound guide 300 can be increased, and by only providing the undercut portions 320 at the rear end 302 of the elastic sound guide 300, the thickness of the undercut portions 320 can be set thinner, thereby facilitating the undercut portions 320 to extend into the installation groove through the insertion port 111. When the entire elastic sound guide 300 is inserted into the installation groove 112, the undercut portions 320 are located in the installation groove 112 and abut against the limiting portion 110d, thereby preventing the elastic sound guide 300 from falling out of the installation groove 112.

[0051] Furthermore, the mounting portion 110 includes a first side wall 110a disposed opposite to a notch of the mounting groove 112, a second side wall 110b connected to the first side wall 110a and located on one side of the notch of the mounting groove 112, and a third side wall 110c connected to the first side wall 110a and disposed opposite to the second side wall 110b, the third side wall 110c is located on the other side of the notch of the mounting groove 112, and the second side wall 110b and the third side wall 110c are spaced apart along the width direction of the mounting groove 112.

[0052] Specifically, the first side wall 110a, the second side wall 110b, the third side wall 110c and the inner wall of the ear shell 100 cooperate to form a mounting groove 112; wherein the third side wall 110c and the second side wall 110b are both connected to the limiting portion 110d, and the space between the two limiting portions 110d is the insertion port 111.

[0053] Combination Figure 5 and Figure 6 In one embodiment, a sealing edge 330 for sealing the notch of the installation groove 112 is provided on one side of the elastic sound guide 300 close to the main control board 200, thereby reducing the risk of contaminants entering the installation groove 112 and the risk of air leakage.

[0054] like Figure 3As shown, in some embodiments, the inlet size of the sound guide channel 310 is larger than the size of the sound inlet hole 120. In this way, even if the elastic sound guide 300 is installed offset, the risk of the sound inlet hole 120 being partially blocked by the elastic sound guide 300 can be reduced.

[0055] Furthermore, the size of the outlet of the sound guide channel 310 is larger than the size of the microphone hole 210. In this way, even if the elastic sound guide member 300 is installed offset, the risk of the microphone hole 210 being partially blocked by the elastic sound guide member 300 can be reduced.

[0056] like Figure 2 As shown, in some embodiments, the inner wall of the ear shell 100 is further connected to a supporting portion 130 , and the supporting portion 130 is disposed on a side of the main control board 200 away from the mounting portion 110 and supports the main control board 200 .

[0057] It can be understood that the supporting portion 130 is used to support and limit the side of the main control board 200 away from the installation portion 110, and the side of the main control board 200 close to the installation portion 110 can be squeezed and limited by the elastic sound guide 300, so that the main control board 200 can be fixed.

[0058] Furthermore, in order to improve the reliability of fixing the main control board 200 , the main control board 200 may be further fixed by means of screws.

[0059] like Figure 3 As shown, in some embodiments, the TWS earphone also includes a waterproof membrane 500, which is disposed in the mounting groove 112 and covers the sound inlet hole 120, and the elastic sound guide 300 is interference fit with the waterproof membrane 500.

[0060] It can be understood that the waterproof membrane 500 can play a role in dustproof and waterproof, and the elastic sound guide 300 and the waterproof membrane 500 have an interference fit, which can achieve the limitation of the waterproof membrane 500.

[0061] It should be noted that, in the TWS earphone of the present invention, the elastic sound guide 300 is installed by inserting it into the installation groove 112 through the insertion port 111 from front to back, that is, the elastic sound guide 300 is installed directly opposite to the waterproof membrane 500. During the process of inserting the elastic sound guide 300 into the installation groove 112, that is, before the elastic sound guide 300 is installed in place, the elastic sound guide 300 does not contact the waterproof membrane 500. Therefore, the waterproof membrane 500 will not be offset during the installation of the elastic sound guide 300, thereby reducing the risk of low call quality due to the offset of the waterproof membrane 500.

[0062] When assembling the TWS earphone of the present invention, the main control board 200 with the microphone 400 can be first installed in the ear shell 100, and the microphone 400 can be located on the side of the main control board 200 away from the mounting portion 110, and then the elastic sound guide 300 can be inserted into the mounting groove 112 through the insertion port 111 to achieve the installation of the elastic sound guide 300. After the elastic sound guide 300 is installed in the mounting groove 112, due to its own elastic force, it will automatically expand in all directions, thereby achieving close contact between the elastic sound guide 300 and the periphery of the microphone hole 210. Among them, in the process of installing the elastic sound guide 300 into the installation groove 112, the end of the elastic sound guide 300 close to the sound inlet hole 120 can be inserted into the installation groove 112 through the insertion port 111 first. Since the width of the end of the elastic sound guide 300 close to the sound inlet hole 120 is smaller than the width of the insertion port 111, the elastic sound guide 300 can be easily inserted into the installation groove 112. In addition, although the width of the end of the elastic sound guide 300 away from the sound inlet hole 120 is greater than the width of the insertion port 111, since the elastic sound guide 300 can be compressed after being pressed, with a little force, the end of the elastic sound guide 300 away from the sound inlet hole 120 can be inserted into the installation groove 112 through the insertion port 111, so that the elastic sound guide 300 is upside down in the installation groove 112 to prevent it from falling out.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A TWS headset, characterized in that: It includes an ear shell, a main control board and an elastic sound guide; The ear shell is provided with a sound inlet hole; the main control board is arranged inside the ear shell, and the main control board is provided with a microphone hole, and the axial direction of the microphone hole is arranged at an angle with the axial direction of the sound inlet hole; the inner wall of the ear shell is connected with a mounting part, the mounting part is formed with a mounting groove connected with the sound inlet hole, the notch of the mounting groove is arranged opposite to the microphone hole, and the side of the mounting part opposite to the sound inlet hole is provided with an insertion port connected with the mounting groove; the elastic sound guide is arranged in the mounting groove, and is used to connect the sound inlet hole and the microphone hole, and the elastic sound guide is interference fit with the main control board and seals the periphery of the microphone hole; Among them, the width of the elastic sound guide part at one end close to the sound inlet hole is smaller than the width of the insertion port, the width of the elastic sound guide part at one end away from the sound inlet hole is larger than the width of the insertion port, and the end of the elastic sound guide part away from the sound inlet hole is squeezed into the installation groove.

2. The TWS headset according to claim 1, characterized in that: The end of the elastic sound guide away from the sound inlet hole is defined as the rear end of the elastic sound guide, and undercuts are provided on both sides of the rear end of the elastic sound guide along the width direction of the elastic sound guide, and limiting portions are provided on both sides of the insertion port along the width direction of the insertion port, and the undercuts are located in the installation groove and abut against the limiting portions.

3. The TWS headset according to claim 2, characterized in that: The mounting portion includes a first side wall arranged opposite to a notch of the mounting groove, a second side wall connected to the first side wall and located on one side of the notch of the mounting groove, and a third side wall connected to the first side wall and arranged opposite to the second side wall, the third side wall is located on the other side of the notch of the mounting groove, and the third side wall and the second side wall are spaced apart along the width direction of the mounting groove, the third side wall and the second side wall are both connected to the limiting portion, and the space between the two limiting portions is the insertion port.

4. The TWS headset according to claim 1, characterized in that: A sealing edge for sealing the notch of the installation groove is arranged on one side of the elastic sound guide member close to the main control board.

5. The TWS headset according to claim 1, characterized in that: The elastic sound guide is made of silicone, rubber, TPV or EPDM.

6. The TWS headset according to claim 1, characterized in that: The elastic sound guide member is provided with a sound guide channel, the inlet of the sound guide channel is arranged opposite to the sound inlet hole, and the outlet of the sound guide channel is arranged opposite to the microphone hole; the size of the inlet of the sound guide channel is larger than the size of the sound inlet hole.

7. The TWS headset according to claim 6, characterized in that: The size of the outlet of the sound guide channel is larger than the size of the microphone hole.

8. The TWS headset according to claim 1, characterized in that: The inner wall of the ear shell is also connected with a supporting portion, and the supporting portion is arranged on a side of the main control board away from the mounting portion and supports the main control board.

9. The TWS headset according to claim 1, characterized in that: It also includes a waterproof membrane, which is arranged in the installation groove and covers the sound inlet hole, and the elastic sound guide is interference-fitted with the waterproof membrane.

10. The TWS headset according to claim 1, characterized in that: The main control board is also provided with a microphone, the sound pickup hole of the microphone is arranged opposite to the microphone hole, and the microphone is located at a side of the main control board away from the mounting portion.

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