Earphone control cabin and bone conduction earphone

Abstract

The utility model discloses an earphone control cabin and a bone conduction earphone, and relates to the technical field of sound production equipment. The earphone control cabin comprises a shell assembly, a first circuit assembly and a second circuit assembly; the shell assembly comprises an inner cavity; the first circuit assembly is arranged in the inner cavity and comprises a first circuit board; the second circuit assembly is arranged in the inner cavity and comprises a second circuit board, the first circuit board and the second circuit board are arranged at intervals in the thickness direction of the shell assembly, an interval space is reserved between the first circuit board and the second circuit board, and the first circuit board is electrically connected with the second circuit board. The main control board in the earphone control cabin adopts a PCB with a double-layer structure, has a larger area for installing electronic components, can install more components, effectively saves the space in the X / Y direction, makes full use of the structural space of the inner cavity, and meets the installation requirements of more electronic components to the greatest extent. And the bone conduction earphone is endowed with more comprehensive functions and better experience.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an earphone control bin and a bone conduction earphone. Background Art

[0002] A bone conduction earphone is an earphone that uses the bone conduction principle to generate sound. It usually includes a control bin, and the control bin includes a main control board. Electronic components are provided on the main control board. Through the devices provided on the main control board, corresponding control instructions can be generated, so as to realize the control of the bone conduction earphone, such as controlling power on / off, adjusting the earphone volume, etc.

[0003] Most of the existing main control boards of the control bin generally adopt a single PCB structure. Due to the limitation of the space of the bin body structure, the outer dimension of the PCB board cannot be made large, and the number of electronic components connected thereto is limited. With the development of bone conduction earphones, more and more functions need to be integrated on the bone conduction earphones, such as heart rate detection, running counting, user interaction, etc. Due to the limited space for placing devices, the existing circuit board structure in the control bin is difficult to integrate more electronic components and cannot meet the increasingly high user requirements.

[0004] Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an earphone control bin and a bone conduction earphone that can carry more electronic components.

[0006] To achieve the above-mentioned utility model purpose, the utility model provides a bone conduction earphone, including:

[0007] A housing assembly, including an inner cavity;

[0008] A first circuit assembly, disposed in the inner cavity, including a first circuit board; and,

[0009] A second circuit assembly, disposed in the inner cavity, including a second circuit board. The first circuit board and the second circuit board are spaced apart along the thickness direction of the housing assembly. There is a spacing space between the first circuit board and the second circuit board, and the first circuit board and the second circuit board are electrically connected.

[0010] Further, it further includes a connector disposed between the first circuit board and the second circuit board, and the first circuit board and the second circuit board are electrically connected through the connector.

[0011] Further, the first circuit board and the second circuit board are connected by a plurality of positioning posts to form the spacing space; the height range of the spacing space is 1.5 - 3.0 mm.

[0012] Furthermore, the height range of the spacing space is 1.8 - 2.4 mm.

[0013] Furthermore, the housing assembly includes a first plate portion and a second plate portion spaced along the thickness direction. The first plate portion is provided with a limiting boss, the second circuit board abuts against the limiting boss, and the first circuit board is located between the second circuit board and the first plate portion.

[0014] Furthermore, the first circuit board is provided with an avoidance opening for avoiding the limiting boss.

[0015] Furthermore, electronic components are arranged on one side or both sides of the first circuit board and the second circuit board.

[0016] Furthermore, the first circuit assembly further includes a charging pin group and a data transmission pin group electrically connected to the first circuit board. The charging pin group and the data transmission pin group are arranged on the surface of the first circuit board facing the second plate portion. The charging pin group includes at least two charging pins, the data transmission pin group includes at least two data transmission pins, and both the charging pins and the data transmission pins pass through the second circuit board and are partially exposed outside the second plate portion.

[0017] Furthermore, the charging pin group includes two charging pins, the data transmission pin group includes two data transmission pins, the two charging pins and the two data transmission pins are arranged in a 2×2 linear array, and the two charging pins are located in the same row or the same column.

[0018] Furthermore, at least one microphone is arranged in the earphone control bin.

[0019] Furthermore, two microphones are arranged in the earphone control bin, and the two microphones are respectively located on different circuit boards.

[0020] Furthermore, the first circuit assembly includes a first microphone electrically connected to the first circuit board. The first microphone is arranged on the surface of the first circuit board facing the second circuit board and is arranged back to the second circuit board. The first plate portion is provided with a first sound receiving hole corresponding to the first microphone;

[0021] The second circuit assembly includes a second microphone electrically connected to the second circuit board. The second microphone is located on the surface of the second circuit board facing away from the first circuit board and facing the first circuit board. The housing assembly includes a side shell portion connected to the first plate portion, and the side shell portion is provided with a second sound receiving hole corresponding to the second microphone.

[0022] Furthermore, at least one waterproof and breathable film is further arranged in the earphone control bin.

[0023] Further, two waterproof breathable membranes are provided in the earphone control bin.

[0024] Further, the first circuit component further includes a first sound insulation ring connected between the first circuit board and the first plate body part and a first waterproof breathable membrane connected to the first sound insulation ring. The first sound insulation ring is provided with a first sound channel communicating the first microphone and the first sound receiving hole, and the first waterproof breathable membrane seals the first sound channel;

[0025] The second circuit component further includes a second sound insulation ring connected between the second circuit board and the side shell part and a second waterproof breathable membrane connected to the second sound insulation ring. The second sound insulation ring is provided with a second sound channel communicating the second microphone and the second sound receiving hole, and the second waterproof breathable membrane seals the second sound channel.

[0026] To achieve the above-mentioned utility model purpose, the present utility model also provides a bone conduction earphone, which includes the above-mentioned earphone control bin.

[0027] Further, the bone conduction earphone further includes earphone heads, an earphone battery bin, ear hooks and a rear hook. The two earphone heads are respectively connected to the earphone control bin and the earphone battery bin through the ear hooks, and the rear hook is connected between the earphone control bin and the earphone battery bin.

[0028] Compared with the prior art, the present utility model has the following beneficial effects: The earphone control bin includes a first circuit component and a second circuit component stacked on top of each other, that is, the main control board in the earphone control bin uses a double-layer PCB structure, which has a larger area for installing electronic components, can install more components, effectively saves space in the X / Y directions, makes full use of the structural space of the inner cavity, and there is a spaced space between the first circuit board and the second circuit board, which maximally meets the installation requirements of more electronic components, enabling the bone conduction earphone to have more comprehensive functions and a better experience. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the earphone control bin in the present utility model;

[0030] Figure 2 is a schematic structural diagram of the earphone control bin from another angle in the present utility model;

[0031] Figure 3 is a longitudinal sectional view of the earphone control bin in the present utility model;

[0032] Figure 4 is a transverse sectional view of the earphone control bin in the present utility model;

[0033] Figure 5 is another cross-sectional view of the earphone control bin in the present utility model in the width direction;

[0034] Figure 6 is a schematic diagram of the connection relationship between the first circuit board and the second circuit board of the earphone control bin in the present utility model;

[0035] Figure 7 is an exploded view of the earphone control bin in the present utility model;

[0036] Figure 8 is a schematic diagram of the installation structure of the first board part and the first circuit component of the earphone control bin in the present utility model;

[0037] Figure 9 is a schematic diagram of the structure of the first circuit component and the second circuit component of the earphone control bin in the present utility model;

[0038] Figure 10 is another perspective schematic diagram of the structure of the first circuit component and the second circuit component of the earphone control bin in the present utility model;

[0039] Figure 11 is a schematic diagram of the structure of the bone conduction earphone in the present utility model. Specific Embodiments

[0040] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Additionally, it should be noted that for the sake of convenience of description, only parts related to the present application are shown in the accompanying drawings rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0041] The terms "including" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0042] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0043] As shown Figures 1 to 4 in FIG. 1, the earphone control bin 100 corresponding to a preferred embodiment of the present utility model includes a housing assembly 1, a first circuit assembly 2, and a second circuit assembly 3.

[0044] The housing assembly 1 includes an inner cavity 101.

[0045] The first circuit assembly 2 is disposed in the inner cavity 101 and includes a first circuit board 201.

[0046] The second circuit assembly 3 is disposed in the inner cavity 101 and includes a second circuit board 301. The first circuit board 201 and the second circuit board 301 are spaced apart along the thickness direction A of the housing assembly 1, and there is a spacing space 102 between the first circuit board 201 and the second circuit board 301. The first circuit board 201 and the second circuit board 301 are electrically connected. It can be understood that both the first circuit assembly 2 and the second circuit assembly 3 include a plurality of electronic components disposed on their respective circuit boards.

[0047] The first circuit assembly 2 and the second circuit assembly 3 are stacked along the thickness direction A of the housing assembly 1, that is, the main control board in the earphone control bin adopts a double-layer structure PCB, which has a larger area for installing electronic components, can install more components, effectively saves the space in the X / Y direction perpendicular to the thickness direction, makes full use of the structural space of the inner cavity 101, can make the size of the earphone control bin smaller and more compact. There is a spacing space 102 between the first circuit board 201 and the second circuit board 301, which maximally meets the requirements for installing more electronic components, is beneficial to endowing the bone conduction earphone with more comprehensive functions, and realizes a better user experience.

[0048] As a preferred embodiment, as Figures 6 to 10 shown in FIG. 2, the earphone control bin 100 further includes a connector 4 disposed between the first circuit board 201 and the second circuit board 301. The first circuit board 201 and the second circuit board 301 are electrically connected through the connector 4.

[0049] As Figure 6 shown in FIG. 3, the first circuit board 201 and the second circuit board 301 are connected by a plurality of positioning posts 5 to form a spacing space 102. Optionally, the height H of the spacing space 102 ranges from 1.5 - 3.0 mm. Preferably, the height H of the spacing space 102 ranges from 1.8 - 2.4 mm. More preferably, the height H of the spacing space 102 is 1.96 mm. Through the spacing space 102, electronic components can be installed on both sides of the first circuit board 201 and the second circuit board 301, which maximally meets the requirements for stacking more electronic components.

[0050] As Figures 3 to 5 shown in FIG. 4,Figure 7 As shown, the housing assembly 1 includes a first plate portion 103 and a second plate portion 104 spaced apart along the thickness direction A. The first plate portion 103 is provided with a limiting boss 106. The second circuit board 301 abuts against the limiting boss 106, and the second circuit board 301 and the limiting boss 106 are fixed together by a connecting member 109. The connecting member 109 can be, for example, a screw. The first circuit board 201 is located between the second circuit board 301 and the first plate portion 103, as Figure 8 and Figure 9 shown, the first circuit board 301 is provided with an avoidance opening 206 for avoiding the limiting boss 106, so that the structure is more compact. By connecting the connecting member 109 with the limiting boss 106, the second circuit board 301 is fixedly connected to the first plate portion 103, and the stability is good and it is not easy to loosen.

[0051] It can be understood that electronic components can be arranged on one or both surfaces of the first circuit board 201 and the second circuit board 301. When electronic components are arranged on both surfaces of the two circuit boards, more electronic components can be accommodated.

[0052] As Figure 10 shown, the first circuit assembly 2 further includes a charging pin group and a data transmission pin group electrically connected to the first circuit board 201. The charging pin group and the data transmission pin group are arranged on the surface of the first circuit board 201 facing the second plate portion 104. The charging pin group includes at least two charging pins 202, and the data transmission pin group includes at least two data transmission pins 203. The charging pins 202 and the data transmission pins 203 both pass through the second circuit board 301 and are partially exposed outside the second plate portion 104.

[0053] The charging pin group is used for charging, and the data transmission pin group is used for data transmission. Therefore, when docked with the corresponding charging data cable, the charging data cable can be used for both charging and data transmission at the same time. Optionally, as Figure 10 shown, the charging pin group includes two charging pins 202, and the data transmission pin group includes two data transmission pins 203. The two charging pins 202 and the two data transmission pins 203 are arranged in a 2 by 2 linear array. The two charging pins 202 are located in the same row or the same column. Correspondingly, the two data transmission pins 203 are also located in the same row or the same column. In this way, the two charging pins 202 and the two data transmission pins 203 are respectively located at the four endpoints of a rectangle (preferably a square). Compared with the form in which four pins are arranged in the same row, the size in the arrangement direction can be reduced. Optionally, the charging pins 202 and the data transmission pins 203 are both made of metal conductive materials, such as made of brass. The charging pins 202 and the data transmission pins 203 can be, for example, spring PIN pins.

[0054] To improve the stability during charging, asFigure 2 and Figure 7 As shown in Figure 7 , two long grooves 107 which are recessed and spaced apart are provided on the outer surface of the second plate body portion 104. Two through holes 108 are provided in each long groove 107, and two charging pins 202 and two data transmission pins 203 are exposed from the through holes 107 respectively. In this way, the dimensional accuracy of the interval between the two charging pins 202 can be reliably guaranteed, and the dimensional accuracy of the interval between the two first data transmission pins 203 can also be reliably guaranteed, improving the docking accuracy. The data transmission pins 203 are fixedly connected to the second plate body portion 104 and pass through the avoidance holes 307 on the second circuit board 301 to abut against the first circuit board 201, thereby realizing the electrical connection with the first circuit board 201.

[0055] As Figure 3 and Figure 7 shown in Figure 3 and Figure 7 , a first magnet 6 and a second magnet 7 are further provided in the inner cavity 101 of the housing assembly 1. The first magnet 6 and the second magnet 7 are arranged between the second circuit board 301 and the second plate body portion 104, and are spaced apart from the second circuit board 301 and connected to the second plate body portion 104. The polarities of the first magnet 6 and the second magnet 7 are opposite, and their N poles or S poles are arranged facing the second plate body portion 104. The first magnet 6 and the second magnet 7 are used to magnetically attract the charging connector of the charging data cable, so that the charging pins 202 and the data transmission pins 203 maintain electrical contact with the charging connector, thereby further ensuring the stable progress of charging and data transmission.

[0056] At least one microphone is provided in the earphone control bin. Preferably, two microphones are provided in the earphone control bin, and the two microphones are respectively located on different circuit boards.

[0057] Specifically:

[0058] As Figure 10 shown in Figure 10 , the first circuit assembly 2 includes a first microphone 204 electrically connected to the first circuit board 201. The first microphone 204 is provided on the surface of the first circuit board 201 facing the second circuit board 301 and is arranged back to the second circuit board 301. As Figure 1 shown in Figure 1 , the first plate body portion 103 is provided with a first sound receiving hole 205 corresponding to the first microphone 204.

[0059] As Figure 10 shown in Figure 10 , the second circuit assembly 3 includes a second microphone 302 electrically connected to the second circuit board 301. The second microphone 302 is located on the surface of the second circuit board 301 facing away from the first circuit board 201 and is arranged facing the first circuit board 201. As Figures 1 to 6 、 Figure 7 shown in Figures 1 to 6 and Figure 7 , the housing assembly 1 includes a side shell portion 105 connected to the first plate body portion 103. The side shell portion 105 is provided with a second sound receiving hole 303 corresponding to the second microphone 302.

[0060] The main functions of the two microphones provided inside the housing assembly 1 are different. The first microphone 204 is a noise-canceling microphone for receiving external environmental sound signals; the second microphone 302 is a voice pickup microphone for receiving sound signals emitted by the user. The first microphone 204 and the second microphone 302 transmit the respective received sound signals to the processing module of the bone conduction earphone mentioned below. After being processed by the processing module, the environmental noise in the sound signals received by the second microphone 302 can be filtered, improving the call quality. In short, by adopting the technology of dual-microphone noise reduction, the main microphone (the second microphone 302) is used to maintain a stable call, and the secondary microphone (the first microphone 204) is used to eliminate noise.

[0061] As a preferred implementation manner, the second sound pickup hole 303 is closer to the earphone head of the bone conduction earphone mentioned below than the first sound pickup hole 205. When receiving sound signals, since the second sound pickup hole 303 is closer to the human mouth, the second microphone 302 can receive clearer human voices. While the first sound pickup hole 205 is farther from the mouth, thus, the first microphone 204 can receive clearer environmental noise and reduce the pickup of human voices. In this way, the active noise reduction effect of the first microphone 204 and the second microphone 302 is better.

[0062] At least one waterproof and breathable membrane is also provided inside the earphone control box. Preferably, two waterproof and breathable membranes are provided inside the earphone control box.

[0063] Specifically:

[0064] As Figure 4 and Figure 9 shown, the first circuit component 2 further includes a first sound insulation ring 206 connected between the first circuit board 201 and the first plate body portion 103 and a first waterproof and breathable membrane 208 connected to the first sound insulation ring 207 (which can be fixed by gluing, for example). The first sound insulation ring 207 is provided with a first sound channel 209 communicating the first microphone 204 and the first sound pickup hole 205, and the first waterproof and breathable membrane 208 seals the first sound channel 209; As Figure 5 and Figure 9As shown, the second circuit component 3 further includes a second sound insulation ring 304 connected between the second circuit board 301 and the side housing portion 105, and a second waterproof and breathable membrane 305 connected to the second sound insulation ring 304 (which can be fixed by gluing, for example). The second sound insulation ring 304 is provided with a second sound channel 306 connecting the second microphone 302 and the second sound receiving hole 303, and the second waterproof and breathable membrane 305 seals the second sound channel 306. The first waterproof and breathable membrane 208 and the second waterproof and breathable membrane 305 can play a waterproof role, improving the service life of the bone conduction earphone, and at the same time not affecting the transmission of sound. The first sound insulation ring 207 and the second sound insulation ring 304 are made of sound insulation materials, and can be made of porous soft materials such as foam, for example. Since the first sound insulation ring 207 and the second sound insulation ring 304 adopt an annular design, it can prevent sound from leaking into the inner cavity 101 of the housing assembly 1, and can also prevent the sound in the inner cavity 101 from being picked up by the microphone, which is beneficial to reducing the mutual interference caused by the sound entering from the first sound receiving hole 205 and the second sound receiving hole 303.

[0065] As Figure 11 shown, the present utility model also proposes a bone conduction earphone, including the earphone control bin 100 described above.

[0066] As a preferred embodiment, as Figure 11 shown, the bone conduction earphone further includes earphone heads 200, an earphone battery bin 300, ear hooks 400 and a rear hook 500. The ear hooks 400 and the rear hook 500 are both elastic, and can be made of elastic materials such as titanium wire, manganese steel wire, stainless steel wire, etc. with a rubber coating on the outside; the two earphone heads 200 are respectively connected to the earphone control bin 100 and the earphone battery bin 300 through the ear hooks 400. The ear hooks 400 adopt an arc design close to the contour of the human ear, so as to improve the stability and comfort when the user wears them; the rear hook 500 is connected between the earphone control bin 100 and the earphone battery bin 300. Since the rear hook 60 and the ear hook 3 are both elastic, a clamping force is generated between the two earphone heads 1 and the human skin, improving the stability of the bone conduction earphone when worn and improving the transmission efficiency of vibration.

[0067] The above is only the specific implementation manner of the present utility model, and any improvement made on the premise of the present utility model concept is regarded as the protection scope of the present utility model.

Claims

1. An earphone control compartment, characterized in that: include: a housing assembly including an inner cavity; A first circuit assembly, disposed in the inner cavity, includes a first circuit board; and The second circuit component is arranged in the inner cavity, and includes a second circuit board. The first circuit board and the second circuit board are arranged at intervals along the thickness direction of the shell component. A spacing space is left between the first circuit board and the second circuit board. The first circuit board and the second circuit board are electrically connected.

2. The earphone control compartment according to claim 1, characterized in that: It also includes a connector arranged between the first circuit board and the second circuit board, and the first circuit board and the second circuit board are electrically connected through the connector.

3. The earphone control compartment according to claim 1, characterized in that: The first circuit board and the second circuit board are connected via a plurality of positioning columns to form the spacing space; the height range of the spacing space is 1.5-3.0 mm.

4. The earphone control compartment according to claim 3, characterized in that: The height of the spacing space is in the range of 1.8-2.4 mm.

5. The earphone control compartment according to claim 1, characterized in that: The housing assembly includes a first plate body and a second plate body arranged at intervals along the thickness direction, the first plate body is provided with a limiting boss, the second circuit board abuts against the limiting boss, and the first circuit board is located between the second circuit board and the first plate body.

6. The earphone control compartment according to claim 5, characterized in that: The first circuit board is provided with an escape opening for escaping the limiting boss.

7. The earphone control compartment according to claim 5, characterized in that: Electronic components are arranged on one or both sides of the surface of the first circuit board and the second circuit board.

8. The earphone control compartment according to claim 7, characterized in that: The first circuit assembly also includes a charging pin group and a data transmission pin group electrically connected to the first circuit board. The charging pin group and the data transmission pin group are arranged on the surface of the first circuit board facing the second board body. The charging pin group includes at least two charging pins, and the data transmission pin group includes at least two data transmission pins. Both the charging pins and the data transmission pins pass through the second circuit board portion and are exposed to the second board body.

9. The earphone control compartment according to claim 8, characterized in that: The charging pin group includes two charging pins, and the data transmission pin group includes two data transmission pins. The two charging pins and the two data transmission pins are arranged in a 2 by 2 linear array, and the two charging pins are located in the same row or column.

10. The earphone control compartment according to claim 7, characterized in that: At least one microphone is arranged in the earphone control compartment.

11. The earphone control compartment according to claim 10, characterized in that: Two microphones are arranged in the earphone control compartment, and the two microphones are respectively located on different circuit boards.

12. The earphone control compartment according to claim 11, characterized in that: The first circuit assembly includes a first microphone electrically connected to the first circuit board, the first microphone is arranged on a surface of the first circuit board facing the second circuit board and facing away from the second circuit board, and the first board body is provided with a first sound receiving hole corresponding to the first microphone; The second circuit component includes a second microphone electrically connected to the second circuit board, the second microphone is located on the surface of the second circuit board facing away from the first circuit board and is arranged toward the first circuit board, and the shell component includes a side shell portion connected to the first board body portion, and the side shell portion is provided with a second sound receiving hole corresponding to the second microphone.

13. The earphone control compartment according to claim 11, characterized in that: At least one waterproof and breathable membrane is also arranged in the earphone control compartment.

14. The earphone control compartment according to claim 13, characterized in that: Two waterproof and breathable membranes are arranged in the earphone control compartment.

15. The earphone control compartment according to claim 12, characterized in that: The first circuit assembly further includes a first sound insulation ring connected between the first circuit board and the first board body and a first waterproof breathable membrane connected to the first sound insulation ring, the first sound insulation ring is provided with a first sound channel connected to the first microphone and the first sound receiving hole, and the first waterproof breathable membrane seals the first sound channel; The second circuit assembly also includes a second sound insulation ring connected between the second circuit board and the side shell portion and a second waterproof breathable membrane connected to the second sound insulation ring, the second sound insulation ring is provided with a second sound channel connecting the second microphone and the second sound receiving hole, and the second waterproof breathable membrane seals the second sound channel.

16. A bone conduction headset, characterized in that: Comprising the earphone control compartment as described in any one of claims 1-15.

17. The bone conduction earphone according to claim 16, characterized in that: The bone conduction earphone also includes an earphone head, an earphone battery compartment, an ear hook and a back hook. The two earphone heads are respectively connected to the earphone control compartment and the earphone battery compartment through the ear hooks, and the back hook is connected between the earphone control compartment and the earphone battery compartment.

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