Earphone module and clip-on earphone

Abstract

The utility model provides a kind of earphone module and ear-clamping earphone, the earphone module includes first shell, first sound production component and second sound production component in the form of column, and the earphone module is with the first shell first end adheres to the skin surface in conchae cavity The way is worn to human ear part;First sound production component is close to the first shell in axial first end, and sound output is realized by driving first shell vibration;Second sound production component is away from the first shell first end, and form air chamber between first sound production component and second sound production component, and the second sound production component with sound emitting surface towards the first shell axial first end and by pushing air chamber in air vibration realizes sound output;The side surface of the first shell has sound hole connected with air chamber, and when the first shell first end adheres to the skin in conchae cavity, the sound hole is towards the entrance of external auditory canal.The utility model can simultaneously consider earphone module in high frequency band and low frequency band acoustic performance.

Description

Technical Field

[0001] This utility model relates to the field of headphones, and more specifically, to a headphone module and a clip-on headphone. Background Technology

[0002] Unlike traditional headphones or speakers that transmit sound through the air, bone conduction speakers transmit sound vibrations directly to the listener's skull, bypassing the outer and middle ear and directly stimulating the inner ear (cochlea), thus allowing the person to hear sound. Currently, bone conduction speakers are being used more and more widely.

[0003] Because low-frequency sounds (such as frequencies between 20Hz and 300Hz) require a large amplitude to effectively transmit vibrations to the skull, and miniaturized bone conduction speakers cannot generate sufficient vibration intensity, their bass performance is somewhat inferior to that of traditional air conduction headphones. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an earphone module and clip-on earphones to address the issue of relatively poor low-frequency sound effects of bone conduction speakers.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide an earphone module, including a columnar first shell and a first sound-generating component and a second sound-generating component respectively installed in the first shell, wherein the radial dimension of the first shell is less than or equal to the radial dimension of the human concha cavity, and the earphone module is worn on the human ear with the first end of the first shell attached to the skin surface inside the concha cavity; the first sound-generating component is close to the axial end inside the first shell and achieves sound output by driving the first shell to vibrate; the second sound-generating component is away from the first end of the first shell and forms an air chamber between the first sound-generating component and the second sound-generating component, and the second sound-generating component faces the axial end of the first shell and achieves sound output by driving the air in the air chamber to vibrate through a diaphragm; the side of the first shell has a sound outlet hole communicating with the air chamber, and when the first end of the first shell is attached to the skin inside the concha cavity, the sound outlet hole faces the entrance of the external auditory canal.

[0006] As a further improvement of this utility model, the first housing includes a main housing and a vibration transmission layer, and the Young's modulus of the vibration transmission layer is less than the elastic modulus of the main housing; an opening is formed at the first end of the main housing, and the first sound-generating component and the second sound-generating component are installed in the main housing through the opening; the vibration transmission layer is connected to the first end of the main housing and covers the opening.

[0007] As a further improvement of this utility model, the earphone module includes a fixing frame, the end face of the first end of the fixing frame has a first mounting groove, the end face of the tail end has a second mounting groove, and the first sound-generating component is installed in the first mounting groove, the second sound-generating component is installed in the second mounting groove, the air chamber is formed between the sound-generating surface of the second sound-generating component and the bottom wall of the second mounting groove; the groove wall of the second mounting groove has an air guide hole corresponding to the sound outlet hole.

[0008] As a further improvement of this utility model, the second mounting groove of the fixing frame has an annular platform. The size of the opening of the annular platform to the second mounting groove is adapted to the axial dimension of the second sound-generating component. The edge of the first end of the second sound-generating component is in contact with the annular platform. The distance between the end face of the first end of the second sound-generating component and the bottom wall of the second mounting groove is 2-6mm.

[0009] As a further improvement of this utility model, the side wall of the first mounting groove on the fixing frame has a clearance notch, the wiring terminal of the first sound-generating component extends to the clearance notch, and the cable introduced from outside the first housing is electrically connected to the wiring terminal at the clearance notch.

[0010] As a further improvement of this utility model, the sound outlet is composed of strip-shaped holes distributed circumferentially along the side wall of the first housing, and the area of ​​the strip-shaped holes is 4-10 square millimeters.

[0011] As a further improvement of this utility model, the cross-section of the first shell is circular, and the central angle corresponding to the strip hole is 30-60°.

[0012] As a further improvement of this utility model, the first housing has a pressure relief hole, which is located on the side or end face of the first housing, and the space at the end of the second sound-generating component inside the first housing is connected to the outside through the pressure relief hole.

[0013] This utility model also provides an ear clip-on earphone, including an abutment part, a connecting part, and an earphone module as described above. The connecting part is arc-shaped, and the abutment part and the earphone module are respectively connected to the two ends of the connecting part. When the earphone module is worn, it is inserted into the concha cavity. When the earphone is worn, the connecting part extends from the front side of the auricle, around the side of the auricle, to the back side of the auricle. When the earphone is worn, the abutment part is located on the back side of the auricle.

[0014] As a further improvement of this utility model, the abutting part includes a second housing and a control circuit board and a rechargeable battery respectively installed in the second housing, and the control circuit board is electrically connected to the first sound-generating component and the second sound-generating component respectively via a cable passing through the connecting part.

[0015] The present invention has the following beneficial effects: by setting a first sound-generating component and a second sound-generating component in the first housing, and by having the first sound-generating component drive the first housing to vibrate and generate sound, and the second sound-generating component drive the air in the air chamber to vibrate and generate sound, the acoustic performance of the headphone module in both the high-frequency and low-frequency ranges can be taken into account at the same time. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the headphone module provided in an embodiment of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the headphone module provided in this embodiment of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the fixing bracket in the earphone module provided in this embodiment of the utility model.

[0019] Figure 4 This is another structural schematic diagram of the fixing bracket in the headphone module provided in this embodiment of the utility model.

[0020] Figure 5 This is a schematic diagram of the clip-on earphone provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components by differences in name, but by differences in function. The term "comprising" as used throughout this specification and claims is an open-ended term and should be interpreted as "comprising but not limited to". "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0023] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; unless otherwise specified or explained, the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] like Figure 1 , Figure 2 The diagram shows a schematic of the headphone module provided in this embodiment of the present invention. This headphone module can be applied to headphones, such as clip-on headphones, and outputs sound. The headphone module of this embodiment includes a first housing, a first sound-generating component 13, and a second sound-generating component 14. The first housing is cylindrical, and the radial dimension of the first housing is less than or equal to the radial dimension of the human concha (as will be understood by those skilled in the art, this refers to the concha of a normal adult). The first housing has a receiving cavity, and the first sound-generating component 13 and the second sound-generating component 14 are respectively installed within the receiving cavity of the first housing. The headphone module of this embodiment is worn on the human ear by placing the first end of the first housing against the skin surface inside the concha; that is, when wearing headphones with this headphone module, at least a portion of the first housing is inserted into the concha.

[0026] The aforementioned first sound-generating component 13 is located near the axial end of the first housing (i.e., the end that contacts the skin when worn), for example, on the inner side of the end face of the first housing (or there is a gap between the first sound-generating component 13 and the inner side of the end face of the first housing), and outputs sound by causing the first housing to vibrate. In other words, the aforementioned first sound-generating component 13 is a bone conduction speaker, which converts electrical signals into mechanical vibrations. These mechanical vibrations are conducted through the first housing to the human skin, and then, based on the principle of bone conduction, act directly on the wearer's auditory nerve, primarily through the wearer's skin, bones, and other tissues, allowing the wearer to hear the sound produced by the first sound-generating component 13. The specific structure of the aforementioned first sound-generating component 13 (i.e., the bone conduction speaker) and the structure of the bone conduction speaker installed in the first housing can adopt conventional structures in the art, and will not be described in detail here.

[0027] The second sound-generating component 14 is located away from the first end of the first housing. That is, the first and second sound-generating components 13 and 14 are distributed axially within the first housing, and the second sound-generating component 14 is located on the side of the first sound-generating component 13 facing away from the first end of the first housing; for example, the second sound-generating component 14 may be close to the end face of the rear end of the second housing. Furthermore, an air chamber 15 is formed between the first and second sound-generating components 13 and 14, with the sound-emitting surface of the second sound-generating component 14 facing the axial first end of the first housing. Sound output is achieved by the diaphragm of the sound-emitting surface driving the air in the air chamber 15 to vibrate. In other words, the second sound-generating component 14 is a diaphragm speaker, which drives the air to vibrate, and the vibrating air then pushes the wearer's eardrum, allowing the wearer to hear sound. The specific structure of the second sound-generating component 14 (i.e., the diaphragm speaker) and the structure of the diaphragm speaker mounted in the first housing can adopt conventional structures in the art, and will not be described in detail here.

[0028] The first housing has a sound outlet 1111 on its side that communicates with the air chamber 15. When the first end of the first housing is placed against the skin inside the concha, the sound outlet 1111 faces the entrance to the external auditory canal. That is, when the earphone module is worn on the human ear, the part of the first housing containing the sound outlet 1111 is located inside the concha, and the sound outlet 1111 faces the entrance to the external auditory canal. In this way, the sound generated by the second sound-generating component 14 can be directly sent to the external auditory canal, allowing the wearer to receive the sound generated by the second sound-generating component 14 through the eardrum.

[0029] The aforementioned headphone module, by setting a first sound-generating component 13 and a second sound-generating component 14 within a first housing, with the first sound-generating component 13 driving the first housing to vibrate and produce sound, and the second sound-generating component 14 driving the air within the air chamber 15 to vibrate and produce sound, can simultaneously ensure the acoustic performance of the headphone module in both high and low frequency ranges. In other words, the aforementioned headphone module can either directly act on the wearer's auditory nerve through the wearer's external auricular cartilage, skull, and internal tissues (i.e., bone conduction), or act on the wearer's tympanic membrane based on the principle of air conduction and primarily through air (i.e., air conduction), thereby acting on the auditory nerve. The air conduction sound supplements the low-frequency range of bone conduction sound, improving the music playback effect.

[0030] In one embodiment of this utility model, the first housing includes a main housing 111 and a vibration transmission layer 112. The Young's modulus of the vibration transmission layer 112 is less than the elastic modulus of the main housing 111. For example, the main housing 111 may be made of engineering plastics, metal, or other materials with relatively high hardness, while the vibration transmission layer 112 may be made of materials with relatively low hardness, such as silicone. An opening is formed at the first end of the main housing 111, through which the first sound-generating component 13 and the second sound-generating component 14 are installed. To facilitate the installation of the first sound-generating component 13 and the second sound-generating component 14, the radial dimension of the opening on the main housing 111 is not less than the radial dimension of the first sound-generating component 13 and the second sound-generating component 14. The vibration transmission layer 112 is connected to the first end of the main housing 111 and seals the opening of the main housing 111; that is, the accommodating cavity of the first housing is formed between the main housing 111 and the vibration transmission layer 112. This structure improves the wearing comfort of the headphone module. Of course, in practical applications, the vibration transmission layer 112 can also adopt a synthetic structure, for example, the main body can be made of plastic or metal materials with relatively high hardness, and a silicone layer can be set on the outermost side.

[0031] Combination Figures 1-4 As shown, in one embodiment of this utility model, the headphone module further includes a fixing frame 12. The fixing frame 12 can be made of materials with relatively high hardness, such as engineering plastics or metals. The shape and size of the fixing frame 12 are adapted to the shape and size of the accommodating cavity in the first housing. For example, both the accommodating cavity and the fixing frame 12 can be cylindrical, so that the fixing frame 12 will not loosen after being installed in the accommodating cavity. The end face of the first end of the fixing frame 12 has a first mounting groove 121, and the end face of the tail end has a second mounting groove 122. The first sound-generating component 13 is installed in the first mounting groove 121, and the second sound-generating component 14 is installed in the second mounting groove 122. The air chamber 15 is formed between the sound-generating surface of the second sound-generating component 14 and the bottom wall of the second mounting groove 122. The second mounting slot 122 has an air duct 123 on its wall that corresponds to the sound outlet 1111. That is, the air chamber 15 is connected to the outside world through the air duct 123 and the sound outlet 1111, so that the sound generated by the second sound-generating component 14 can be transmitted to the wearer's external auditory canal.

[0032] During headphone module assembly, the first sound-generating component 13 and the second sound-generating component 14 can be first installed onto the mounting bracket 12 (with corresponding cables also electrically connected to the first sound-generating component 13 and the second sound-generating component 14). Then, the mounting bracket 12 is assembled onto the main housing 111 through an opening (the mounting bracket 12 and the inner wall of the main housing 111 can be fixed with adhesive or a tight fit), and the vibration transmission layer 112 is fixed to the opening of the main housing 111 (while also being in contact with the first sound-generating component). In practical applications, after installing the first sound-generating component 13 and the second sound-generating component 14 onto the mounting bracket 12, the vibration transmission layer 112 can also be fixed to the mounting bracket 12 or the first sound-generating component 13 first, and then the mounting bracket 12 and the vibration transmission layer 112 can be installed together onto the main housing 111. The mounting bracket 12 simplifies the structure of the main housing and facilitates the assembly of the first sound-generating component 13 and the second sound-generating component 14. Furthermore, since the first mounting slot 121 and the second mounting slot 122 in the mounting bracket 12 are separated, the sound output of the first sound-emitting component 13 and the second sound-emitting component 14 will not interfere with each other, thus avoiding affecting the sound effect.

[0033] Of course, in practical applications, openings can be provided at both ends of the main housing 111, and the first sound-generating component 13 and the second sound-generating component 14 can be installed at the two openings respectively. However, this will result in a relatively complex structure of the first housing and poor consistency.

[0034] In one embodiment of this utility model, the second mounting groove 122 of the aforementioned fixing bracket 12 has an annular platform 124. The size of the opening of the annular platform 124 into the second mounting groove 122 is adapted to the axial dimension (i.e., the dimension perpendicular to its sound-emitting surface) of the second sound-emitting component 14 (for example, equal to or slightly larger than the axial dimension of the second sound-emitting component 14). When assembled into the second mounting groove 122, the edge of the end face of the first end of the second sound-emitting component 14 or the mounting step on the outer periphery of the first end of the second sound-emitting component 14 is in contact with the annular platform 124 (the two can be fixed together by adhesive). The distance between the end face of the first end of the second sound-emitting component 14 and the bottom wall of the second mounting groove 122 is 2-6 mm. That is, the axial dimension of the air chamber 15 is 2-6 mm. The above structure facilitates the assembly of the second sound-emitting component 14 and also facilitates the formation of the air chamber 15.

[0035] In one embodiment of this utility model, the side wall of the first mounting groove 121 on the aforementioned fixing bracket 12 has a clearance notch 125, the wiring terminal of the first sound-generating component 13 extends to the clearance notch 125, and the cable introduced from outside the first housing is electrically connected to the wiring terminal at the clearance notch 125. The above structure can minimize the size of the first housing.

[0036] In one embodiment of this utility model, the sound outlet 1111 on the first housing (i.e., the main housing 111) is composed of strip-shaped holes distributed circumferentially along the sidewall of the first housing. The area of ​​the strip-shaped holes is 4-10 square millimeters, for example, the width (i.e., the axial dimension along the first housing) of the strip-shaped holes is 1.5-3 millimeters, and the length (i.e., the circumferential dimension along the first housing) is 2.6-5 millimeters. Correspondingly, the size of the air guide hole 123 on the fixing bracket 12 is also 4-10 square millimeters. With the above structure, the sound output effect of the sound outlet 1111 can be guaranteed. In practical applications, the sound outlet 1111 may also have a dust filter, etc., which will not be described in detail here.

[0037] Specifically, the cross-section of the first housing is circular, and correspondingly, the central angle of the strip-shaped hole constituting the sound outlet 1111 is 30-60°. This structure ensures that the sound generated by the second sound-generating component 14 can be better transmitted to the external auditory canal, resulting in relatively low sound leakage.

[0038] In one embodiment of this invention, the first housing also has a pressure relief hole located on the side or end face of the first housing, and the space at the end of the second sound-generating component 14 inside the first housing is connected to the outside through the pressure relief hole. This design prevents the amplitude of the diaphragm of the second sound-generating component 14 from rapidly attenuating due to the internal air pressure of the first housing, thus improving the sound effect. In practical applications, the first housing may also be provided with a pressure relief hole communicating with the space where the first sound-generating component 13 is located.

[0039] like Figure 5 As shown, this utility model also provides a clip-on earphone, including an abutment portion 20, a connecting portion 30, and an earphone module 10 as described above. The connecting portion 30 is arc-shaped, and the abutment portion 20 and the earphone module 10 are respectively connected to both ends of the connecting portion 30. When worn, the earphone module 10 is inserted into the wearer's concha. When worn, the connecting portion 30 extends from the front of the auricle, around the side of the auricle, to the back of the auricle. The abutment portion 20 is located at the back of the auricle when worn. The abutment portion 20, the connecting portion 30, and their connection structure can employ conventional techniques in the art, and will not be described in detail here.

[0040] In one embodiment of this utility model, considering that the headphone module 10 includes both a first sound-emitting component 13 and a second sound-emitting component 14, the abutment portion 20 can include a second housing and a control circuit board and a rechargeable battery respectively installed in the second housing. The control circuit board is electrically connected to the first sound-emitting component 13 and the second sound-emitting component 14 via cables passing through the connecting portion. This structure ensures that the headphone module 10 is relatively small in size. The control circuit board can adopt a conventional structure in the art, which will not be described in detail here. Furthermore, the second housing may also have buttons (including touch buttons) to trigger the control circuit board, thereby controlling the headphone module to play or stop playing.

[0041] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An earphone module, characterized in that, The device includes a columnar first housing and a first and a second sound-generating component respectively installed within the first housing. The radial dimension of the first housing is less than or equal to the radial dimension of the human concha cavity. The earphone module is worn on the human ear with the front end of the first housing touching the skin surface inside the concha cavity. The first sound-generating component is close to the axial front end inside the first housing and outputs sound by causing the first housing to vibrate. The second sound-generating component is away from the front end of the first housing and forms an air chamber between the first and second sound-generating components. The second sound-generating component outputs sound by pushing the air inside the air chamber to vibrate with its sound-emitting surface facing the axial front end of the first housing and by using a diaphragm. The side of the first housing has a sound outlet that communicates with the air chamber, and when the front end of the first housing touches the skin inside the concha cavity, the sound outlet faces the entrance of the external auditory canal.

2. The earphone module according to claim 1, characterized in that, The first housing includes a main housing and a vibration transmission layer, and the Young's modulus of the vibration transmission layer is less than the elastic modulus of the main housing; an opening is formed at the first end of the main housing, and the first sound-generating component and the second sound-generating component are installed in the main housing through the opening; the vibration transmission layer is connected to the first end of the main housing and covers the opening.

3. The earphone module according to claim 1, characterized in that, The earphone module includes a mounting frame, with a first mounting groove on the front end face and a second mounting groove on the rear end face. The first sound-generating component is installed in the first mounting groove, and the second sound-generating component is installed in the second mounting groove. The air chamber is formed between the sound-generating surface of the second sound-generating component and the bottom wall of the second mounting groove. The groove wall of the second mounting groove has an air guide hole corresponding to the sound outlet hole.

4. The earphone module according to claim 3, characterized in that, The second mounting groove of the fixing frame has an annular platform. The size of the opening of the annular platform to the second mounting groove is adapted to the axial dimension of the second sound-generating component. The edge of the first end of the second sound-generating component is in contact with the annular platform. The distance between the end face of the first end of the second sound-generating component and the bottom wall of the second mounting groove is 2-6mm.

5. The earphone module according to claim 3, characterized in that, The side wall of the first mounting slot on the mounting bracket has a clearance notch, the wiring terminal of the first sound-generating component extends to the clearance notch, and the cable introduced from outside the first housing is electrically connected to the wiring terminal at the clearance notch.

6. The earphone module according to claim 1, characterized in that, The sound outlet is composed of strip-shaped holes distributed circumferentially along the sidewall of the first housing, and the area of ​​the strip-shaped holes is 4-10 square millimeters.

7. The earphone module according to claim 6, characterized in that, The first housing has a circular cross-section, and the central angle corresponding to the strip hole is 30-60°.

8. The earphone module according to claim 1, characterized in that, The first housing has a pressure relief hole located on the side or end face of the first housing, and the space at the end of the second sound-generating component inside the first housing is connected to the outside through the pressure relief hole.

9. A clip-on earphone, characterized in that, The device includes an abutment portion, a connecting portion, and an earphone module as described in any one of claims 1-8. The connecting portion is arc-shaped, and the abutment portion and the earphone module are respectively connected to both ends of the connecting portion. When the earphone module is worn, it is inserted into the concha cavity. When the device is worn, the connecting portion extends from the front side of the auricle, passes through the side of the auricle, and goes around to the back side of the auricle. When the device is worn, the abutment portion is located on the back side of the auricle.

10. The clip-on earphone according to claim 9, characterized in that, The abutting part includes a second housing and a control circuit board and a rechargeable battery respectively installed in the second housing, and the control circuit board is electrically connected to the first sound-generating component and the second sound-generating component respectively via a cable passing through the connecting part.

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