A dual-drive sound generation structure, a dual-functional earphone and a control method thereof

Abstract

The present invention discloses a dual-drive sound generating structure, a dual-functional earphone and a control method thereof. A dual-drive sound generating structure includes an oscillator structure for bone conduction sound and a speaker structure for air conduction sound; it further includes a magnetic conduction connecting member disposed between the oscillator structure and the speaker structure; the magnetic conduction connecting member is provided with an oscillator-side cavity for embedding the oscillator structure and a speaker-side cavity for embedding the speaker structure. The present invention adopts a magnetic conduction connecting member to combine the oscillator structure and the speaker structure to form an integral structure, making the structure simple and having an overall sense. In addition, the oscillator structure and the speaker structure are placed back to back, and when in use, each outputs audio in opposite directions without interference. In addition, a connection groove is formed by the oscillator inner cover and the speaker outer shell, which is easy to install and convenient for maintenance. The dual-functional earphone of the present invention is provided with a sound guiding hole on the side of the speaker outer shell close to the ear hole, which can realize the sound path conversion of the speaker sound to be directed towards the ear hole, and it is easier to realize the speaker sound reaching the ear hole.

Description

Technical Field

[0001] The present invention relates to a sound generating structure of a headset, and more particularly to a dual-drive sound generating structure, a dual-functional headset and a control method thereof. Background Art

[0002] The poor sound quality and narrow frequency band of existing bone conduction headsets have always been common problems. Since the bone conduction oscillator has no diaphragm and is supported by a shrapnel, the compliance of the shrapnel needs to be controlled within a reasonable range, resulting in a limited vibration amplitude of the shrapnel. The frequency resonance points of the oscillator are generally in the range of 160 - 200 Hz. When the bone conduction headset is in a state of strong low-frequency signals, it will cause increased vibration and headaches. In addition, traditional dynamic coil headsets transmit sound waves to the eardrum of a person's outer ear through the vibration of the speaker diaphragm. Its defect is that it cannot be used in water. In addition, the headset blocks the ear canal and is used in a closed environment for a long time. Due to good sound insulation, the user cannot hear external sounds, which poses a safety hazard when traveling.

[0003] Therefore, it is necessary to combine a bone conduction headset with a traditional speaker headset to solve the above problems. According to the search keywords: name, abstract, claims += (bone conduction and earplug), 124 Chinese patent documents were retrieved. Among them, the new type of bone conduction headset with the patent number CN201920757186.3 is a dual-use headset that has a bone conduction unit and an earplug. However, the earplug and the bone conduction unit are not integrated but a split structure, which is not only unsightly in appearance but also occupies space and is inconvenient to use. Other patent documents have not solved the safety problem caused by closing the ear canal when using the earplug.

[0004] Therefore, it is necessary to develop a new headset structure to realize a headset product that can simultaneously have two functions of bone conduction sound transmission and speaker sound transmission. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-drive sound generating structure, a dual-functional headset and a control method thereof for the above problems existing in the prior art.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A dual-drive sound generating structure includes an oscillator structure for bone conduction sound and a speaker structure for air conduction sound; it further includes a magnetic conduction connecting member disposed between the oscillator structure and the speaker structure; the magnetic conduction connecting member is provided with an oscillator side cavity for embedding the oscillator structure and a speaker side cavity for embedding the speaker structure.

[0008] Preferably, the magnetic coupling member is cylindrical, with one end being an oscillator cylinder provided with the oscillator-side cavity and the other end being a horn cylinder provided with the horn-side cavity; the oscillator structure includes an oscillator magnet provided at the bottom of the oscillator cylinder, an annular oscillator bracket fixed to the outer periphery of the oscillator cylinder, a shrapnel fixed to the outer end face of the oscillator bracket, a fixing piece fixed to the center of the shrapnel, and an oscillator voice coil fixed to the inner side of the fixing piece and surrounding the outer periphery of the oscillator magnet; the oscillator voice coil is electrically connected to the provided audio circuit board.

[0009] Preferably, the horn structure includes a horn magnet provided at the bottom of the horn cylinder, an annular horn bracket fixed to the inner wall of the horn cylinder, a diaphragm fixed to the horn bracket, and a horn coil fixed to the inner side of the diaphragm and surrounding the outer periphery of the horn magnet, and the horn coil is electrically connected to the provided audio circuit board.

[0010] Preferably, the oscillator structure further includes an oscillator magnetic conductive sheet fixed to the outside of the oscillator magnet, through holes are provided in the centers of the fixing piece and the shrapnel, and a fixing plate is further provided on the outside of the shrapnel; the horn structure further includes a horn magnetic conductive sheet fixed to the outside of the horn magnet, and a protective cover is provided on the outside of the horn bracket.

[0011] Preferably, the diameter of the oscillator cylinder is larger than the diameter of the horn cylinder, and an annular groove is provided on the outer circle between the oscillator cylinder and the horn cylinder, and the provided audio circuit board is fixed in the annular groove; the audio circuit board is provided with a switching circuit for switching the oscillator voice coil circuit and the horn coil circuit.

[0012] Preferably, it further includes an oscillator inner cover provided on the outer periphery of the oscillator bracket and a horn outer shell provided on the outer periphery of the horn bracket; a connection groove for connecting the earphone bracket is formed on the same side where the oscillator inner cover and the horn outer shell are adjacent.

[0013] A dual-functional earphone of the present invention includes an earphone bracket and a sound generating structure provided at the end of the earphone bracket, and the sound generating structure is the aforementioned dual-drive type sound generating structure. The earphone bracket is provided with a connection convex ring connected to the connection groove; a sound guiding hole is provided on the side of the horn outer shell close to the ear hole.

[0014] Preferably, the horn outer shell is provided with a detachable reflective outer cover. The reflective outer cover is provided with a large-hole end and a small-hole end that communicate with each other. The large-hole end corresponds to the diaphragm, the small-hole end corresponds to the ear hole, and the sound guiding hole is provided at the small-hole end.

[0015] Preferably, the earphone bracket is a single-ear hook type structure or a double-ear head-mounted U-shaped structure; the earphone bracket of the double-ear head-mounted U-shaped structure is provided with a battery box part.

[0016] A control method for a dual-functional earphone, using the aforementioned dual-functional earphone, the control method includes the following steps:

[0017] A self-learning step, where the audio output line is selected through manual operation, the frequency band of the played audio file is recorded, and a reference data associating the audio file with the selected audio output line in the audio circuit board is established;

[0018] An automatic control step, where the automatic operation is selected through button input, and the controller provided in the audio circuit board selects the corresponding audio output line for formal playback after comparing the frequency band of the pre-played audio file with the reference data;

[0019] Among them, the pre-playing method is the default audio output line, and the pre-playing duration is less than 5 seconds; the default audio output line is the factory setting value, or is set through an audio device connected via Bluetooth, and the audio device includes a computer or a mobile phone.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a magnetic conductive coupling member to combine the oscillator structure and the speaker structure to form an integral structure, making the structure simple and having an overall sense. In addition, the oscillator structure and the speaker structure are placed back to back, and when used, they output audio in opposite directions without interfering with each other. A circular groove is provided on the outer periphery of the magnetic conductive coupling member, which can be used to install the audio circuit board. In addition, a coupling groove is formed by the oscillator inner cover and the speaker outer shell, which is easy to install and convenient for maintenance. The dual-functional earphone of the present invention is provided with a sound guiding hole on the side of the speaker outer shell near the ear hole, which can realize the sound path conversion of the speaker sound to face the ear hole, making it easier to realize the speaker sound reaching the ear hole to make the eardrum hear the sound. And when the speaker is playing and not inserted into the ear hole, it will not cause adverse effects on the ear. When the played low-frequency sound causes headache, switch to the speaker audio output and listen to the sound through the earphone eardrum. Thus, the user can freely switch between the two playing methods. Description of the Drawings

[0021] Figure 1 It is a schematic cross-sectional structure diagram of a specific embodiment of the dual-drive sound generating structure of the present invention;

[0022] Figure 1A is Figure 1 A schematic cross-sectional structure diagram of the magnetic conductive coupling member in the embodiment;

[0023] Figure 2 It is a three-dimensional exploded view of a specific embodiment of the dual-functional earphone of the present invention adopting a double-ear head-mounted U-shaped structure;

[0024] Figure 3 is Figure 2 The reverse view of

[0025] Figure 4 Stereoscopic exploded view of a specific embodiment of the dual - function earphone of the present invention adopting a single - ear hook structure;

[0026] Figure 5 Schematic cross - sectional view of a specific embodiment of the dual - drive sound - generating structure of the dual - function earphone of the present invention adopting a reflective outer cover;

[0027] Figure 5A is Figure 5 Cross - sectional view of the reflective outer cover in the embodiment.

[0028] Reference numerals

[0029] S Dual - drive sound - generating structure 10 Vibration structure

[0030] 11 Vibration magnet 12 Vibration bracket

[0031] 131 Through - hole 13 Elastic sheet

[0032] 141 Through - hole 14 Fixed sheet

[0033] 15 Fixed plate 16 Vibration voice coil

[0034] 182 Connection groove 18 Vibration inner cover

[0035] 19 Vibration magnetic conductive sheet 20 Speaker structure

[0036] 21 Speaker magnet 22 Speaker bracket

[0037] 23 Diaphragm 24 Speaker coil

[0038] 25 Protective cover 280A Sound - guiding hole

[0039] 280 Sound - guiding hole 28 Speaker outer shell

[0040] 29 Speaker magnetic conductive sheet 301 Vibration cylinder

[0041] 302 Speaker cylinder 303 Annular groove

[0042] 30 Magnetic conductive connector 31 Vibration side cavity

[0043] 32 Speaker side cavity 40 Audio circuit board

[0044] 60 Reflective outer cover 61 Large - hole end

[0045] 62 Small - hole end 90A Earphone bracket

[0046] 90 Earphone bracket 91 Fastener

[0047] 98 Battery box part 99 Connection convex ring Detailed implementation manners

[0048] The technical solutions of the present invention will be clearly and completely described below through the following embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0050] It should also be understood that the terms used in the specification of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the specification of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0051] As Figures 1 - 1A shown, a dual-drive sound generating structure S of the present invention includes an oscillator structure 10 for bone conduction sound and a speaker structure 20 for air conduction sound; it further includes a magnetic conduction connecting member 30 provided between the oscillator structure 10 and the speaker structure 20; the magnetic conduction connecting member 30 is provided with an oscillator-side cavity 31 for embedding the oscillator structure 10 and a speaker-side cavity 32 for embedding the speaker structure 20.

[0052] More specifically, the magnetic conduction connecting member 30 is cylindrical, one end is an oscillator cylinder 301 provided with the oscillator-side cavity 31, and the other end is a speaker cylinder 302 provided with the speaker-side cavity 32; the oscillator structure 10 includes an oscillator magnet 11 provided at the bottom of the oscillator cylinder 301, a ring-shaped oscillator bracket 12 fixed to the outer periphery of the oscillator cylinder 301, a diaphragm 13 fixed to the outer end face of the oscillator bracket 12, a fixing piece 14 fixed to the center of the diaphragm 13, and an oscillator voice coil 16 fixed to the inner side of the fixing piece 14 and surrounding the outer periphery of the oscillator magnet 11; the oscillator voice coil 16 is electrically connected to an audio circuit board 40 provided.

[0053] More specifically, the speaker structure 20 includes a speaker magnet 21 provided at the bottom of the speaker cylinder 302, a ring-shaped speaker bracket 22 fixed to the inner wall of the speaker cylinder 302, a diaphragm 23 fixed to the speaker bracket 22, a speaker coil 24 fixed to the inner side of the diaphragm 23 and surrounding the outer periphery of the speaker magnet 21, and the speaker coil 24 is electrically connected to an audio circuit board 40 provided.

[0054] More specifically, the oscillator structure 10 further includes an oscillator magnetic conductive sheet 19 fixed to the outside of the oscillator magnet 11. Through holes 141 and 131 are provided at the centers of the fixing piece 14 and the elastic piece 13, and a fixing plate 15 is further provided on the outside of the elastic piece 13; the horn structure 20 further includes a horn magnetic conductive sheet 29 fixed to the outside of the horn magnet 21, and a protective cover 25 is provided on the outside of the horn bracket 22.

[0055] More specifically, the diameter of the oscillator cylinder 301 is larger than that of the horn cylinder 302, and an annular groove 303 is provided on the outer circle between the oscillator cylinder 301 and the horn cylinder 302. The aforementioned audio circuit board 40 is fixed in the annular groove 303; the audio circuit board 40 is provided with a switching circuit for switching the oscillator voice coil circuit and the horn coil circuit, so that the audio circuit only plays in one of the oscillator structure and the horn structure. For more optimized structure and overall aesthetics, the annular groove 303 is provided on the side closer to the horn cylinder. A stepped inner cavity is provided at the bottom of the horn cylinder 302, so that an annular groove 303 is formed on the outside.

[0056] More specifically, it further includes an oscillator inner cover 18 provided on the outer periphery of the oscillator bracket 12 and a horn outer shell 28 provided on the outer periphery of the horn bracket 22; a connection groove 182 for connecting the earphone bracket is formed on the same side at the adjacent position of the oscillator inner cover 18 and the horn outer shell 28.

[0057] The present invention also discloses a dual-functional earphone, as Figures 2 - 3 shown in the embodiment. This dual-functional earphone adopts a double-ear head-mounted U-shaped structure, including an earphone bracket 90 and a sound generating structure provided at the end of the earphone bracket 90. Both of these two sound generating structures are the aforementioned dual-drive type sound generating structure S. The earphone bracket 90 is provided with a connection convex ring 99 connected to the connection groove 182 (in order to facilitate installation and firm connection, a fastener 91 is used for fixation); a sound guiding hole 280 is provided on the side of the horn outer shell 28 close to the ear hole. The earphone bracket 90 is further provided with a battery box part 98 to provide sufficient power for the oscillator structure 10 and the horn structure 20. One end of the battery box part 98 extends with a bent head part 97 for fixing the dual-drive type sound generating structure S, and the other end is connected to an arc-shaped rod 96 that can generate a clamping force.

[0058] As Figure 4 shown in the embodiment, the earphone bracket 90A of the dual-functional earphone of the present invention is a single-ear hook type structure (adopting a split structure, formed by combining two parts together), and the dual-drive type sound generating structure S can adopt the structure in the above embodiment.

[0059] As Figures 5 to 5AIn the illustrated embodiment, the horn housing 28 is provided with a detachable reflective outer cover 60. The reflective outer cover 60 is provided with a large-hole end 61 and a small-hole end 62 that communicate with each other. The large-hole end 61 corresponds to the diaphragm 23, and the small-hole end 62 corresponds to the ear hole. The small-hole end 62 is provided with a sound guide hole 280A. The reflective outer cover 60 enables the sound played by the horn to turn 180 degrees. Since the outer shape dimensions of each person's ears are different, the distances from the fixed positions of the bone conduction oscillator structures to the ear hole positions are also inconsistent. Therefore, when different users select the dual-function earphone, they can select the corresponding reflective outer cover to obtain the best matching size. By adopting the detachable reflective outer cover, different matching methods of the patterns and colors of the product appearance can also be realized. The detachable reflective outer cover 60 can be connected by a snap connection. The snap connection is realized by a card slot, that is, the assembly position is in a non-working position (for example, the small-hole end is aligned with the body part of the earphone bracket). At this time, the card slot matches the protrusion and can pass through and form a connection relationship. After assembly, the reflective outer cover is rotated to the working position (that is, the small-hole end is aligned with the ear hole). In order to prevent automatic detachment, a certain interference fit is maintained at the connection position between the reflective outer cover and the horn housing.

[0060] The present invention also discloses a control method for the above-mentioned dual-function earphone, including the following steps:

[0061] Self-learning step: Manually operate to select the audio output line, record the frequency band of the played audio file, and establish reference data associating the audio file with the selected audio output line in the audio circuit board;

[0062] Automatic control step: Select the automatic operation by key input. After comparing the frequency band of the pre-played audio file with the reference data by the controller provided in the audio circuit board, select the corresponding audio output line for formal playback;

[0063] Among them, the pre-playing method is the default audio output line, and the pre-playing duration is less than 5 seconds; the default audio output line is the factory setting value or is set by an audio device connected via Bluetooth. The audio devices include a computer or a mobile phone.

[0064] The self-learning step among them can be completed before leaving the factory or can also be carried out when the user purchases and initially uses it.

[0065] In summary, the present invention uses a magnetic coupling member to combine the vibrator structure and the horn structure to form an integral structure, making the structure simple and having an overall sense. In addition, the vibrator structure and the horn structure are placed back to back. When in use, they output audio in opposite directions without interfering with each other. An annular groove is provided on the outer periphery of the magnetic coupling member, which can be used to install the audio circuit board. In addition, a coupling groove is formed by the inner cover of the vibrator and the outer shell of the horn, which is easy to install and convenient for maintenance. The dual-functional earphone of the present invention is provided with a sound guiding hole on the side of the outer shell of the horn near the ear hole, which can realize the sound path conversion of the sound emitted by the horn to face the ear hole, making it easier to emit the sound of the horn into the ear hole to enable the eardrum of the ear to hear the sound. Moreover, when the horn emits sound and is not inserted into the ear hole, it will not cause adverse effects on the ear. When the played low-frequency sound causes headache, switch to the audio output of the horn and listen to the sound through the earphone eardrum. Thus, the user can freely switch between the two playing modes.

[0066] The above only uses embodiments to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation modes of the present invention are limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A dual-functional earphone, comprising an earphone bracket and a sound generating structure disposed at an end of the earphone bracket, wherein The sound generating structure described above is a dual-drive sound generating structure, which includes an oscillator structure for bone conduction sound and a speaker structure for air conduction sound; it is characterized in that it further includes a magnetic conductive connecting piece provided between the oscillator structure and the speaker structure; the magnetic conductive connecting piece is provided with an oscillator side cavity for embedding the oscillator structure and a speaker side cavity for embedding the speaker structure; the magnetic conductive connecting piece is cylindrical, one end is an oscillator cylinder provided with the oscillator side cavity, and the other end is a speaker cylinder provided with the speaker side cavity; the oscillator structure includes an oscillator magnet provided at the bottom of the oscillator cylinder, a ring-shaped oscillator bracket fixed to the outer periphery of the oscillator cylinder, a shrapnel fixed to the outer end face of the oscillator bracket, a fixing piece fixed to the center of the shrapnel, and an oscillator voice coil fixed to the inner side of the fixing piece and surrounding the outer periphery of the oscillator magnet; the oscillator voice coil is electrically connected to the provided audio circuit board; the speaker structure includes a speaker magnet provided at the bottom of the speaker cylinder, a ring-shaped speaker bracket fixed to the inner wall of the speaker cylinder, a diaphragm fixed to the speaker bracket, a speaker coil fixed to the inner side of the diaphragm and surrounding the outer periphery of the speaker magnet, and the speaker coil is electrically connected to the provided audio circuit board; it further includes an oscillator inner cover provided on the outer periphery of the oscillator bracket and a speaker outer shell provided on the outer periphery of the speaker bracket; a connection groove for connecting the earphone bracket is formed on the same side at the adjacent position of the oscillator inner cover and the speaker outer shell; the earphone bracket is provided with a connection convex ring connected to the connection groove; a sound guiding hole is provided on the side of the speaker outer shell near the ear hole; the speaker outer shell is provided with a detachable connection reflective outer cover, and the reflective outer cover is provided with a large hole end and a small hole end that communicate with each other, the large hole end corresponds to the diaphragm, the small hole end corresponds to the ear hole, and the sound guiding hole is provided at the small hole end.

2. The dual-functional earphone according to claim 1, wherein The oscillator structure further includes an oscillator magnetic conductive sheet fixed to the outside of the oscillator magnet, through holes are provided in the centers of the fixing piece and the shrapnel, and a fixing plate is further provided on the outside of the shrapnel; the speaker structure further includes a speaker magnetic conductive sheet fixed to the outside of the speaker magnet, and a protective cover is provided on the outside of the speaker bracket.

3. The dual-functional earphone according to claim 2, wherein The diameter of the oscillator cylinder is larger than the diameter of the speaker cylinder, and an annular groove is provided on the outer circle between the oscillator cylinder and the speaker cylinder, and the provided audio circuit board is fixed in the annular groove; the audio circuit board is provided with a switch circuit for switching the oscillator voice coil circuit and the speaker coil circuit.

4. The dual-functional earphone according to claim 1, wherein The earphone bracket is a single-ear hook type structure or a double-ear head-mounted U-shaped structure; the earphone bracket of the double-ear head-mounted U-shaped structure is provided with a battery box part.

5. A control method for a dual-functional earphone, characterized in that Using the dual-function earphone described in claim 1 or 4, the control method includes the following steps: Self-learning step, manually operate to select the audio output line, record the frequency band of the played audio file, and establish reference data associating the audio file with the selected audio output line in the audio circuit board; Automatic control steps: Select automatic operation through button input. The controller provided in the audio circuit board selects the corresponding audio output line for formal playback after comparing the frequency band of the pre-played audio file with the reference data; Among them, the pre-playing method is the default audio output line, and the pre-playing duration is less than 5 seconds; the default audio output line is the factory setting value or is set through an audio device connected via Bluetooth. The audio devices include a computer or a mobile phone.

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