CN111385719A - Low-loss wireless stereo Bluetooth headset - Google Patents
Low-loss wireless stereo Bluetooth headset Download PDFInfo
- Publication number
- CN111385719A CN111385719A CN202010367372.3A CN202010367372A CN111385719A CN 111385719 A CN111385719 A CN 111385719A CN 202010367372 A CN202010367372 A CN 202010367372A CN 111385719 A CN111385719 A CN 111385719A
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- China
- Prior art keywords
- shell
- vertically arranged
- bluetooth headset
- low
- loss
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
- H04R5/0335—Earpiece support, e.g. headbands or neckrests
Abstract
The invention belongs to the technical field of Bluetooth headsets, in particular to a low-loss wireless stereo Bluetooth headset, which aims at the problem that a large amount of electric energy is wasted when the existing Bluetooth headset is used after being taken down in the using process. In the invention, during the working process, the light intensity of the cavity between the sound insulation rubber ring and the ear of the user is detected in real time by the photosensitive sensor in the daytime, when the sound insulation rubber ring is worn, the light intensity is zero, the sound insulation rubber ring is fed back by the controller and is continuously supplied with power for use, when the user takes down the sound insulation rubber ring for a long time and does not use the sound insulation rubber ring, the photosensitive sensor detects the light intensity, after the long-time detection, the controller determines that the sound insulation rubber ring is not worn for use, and the.
Description
Technical Field
The invention relates to the technical field of Bluetooth earphones, in particular to a low-loss wireless stereo Bluetooth earphone.
Background
The Bluetooth earphone applies the Bluetooth technology to the hands-free earphone, so that users can avoid annoying wiring stumbling and can easily talk in various ways. Since the advent of bluetooth headsets, it has been a good tool for the mobile commerce industry to increase efficiency.
Through retrieval, the chinese patent with the publication number CN108055605B discloses a neckline bluetooth headset and an application method thereof, including two headset housings and a headset line for connecting the two headset housings, wherein one headset housing is provided with a microphone array, and further including a noise detection sensor disposed on the two headset housings or the headset line, the noise detection sensor is used for detecting noise of an environment where the neckline bluetooth headset is located; the metal tube is sleeved on the earphone line and used for fixing the shape of the earphone line. The neck wire bluetooth headset in the above patent has the following disadvantages: in the in-process that bluetooth headset used, because the accident during the use drops, perhaps places at will after using, the broadcast work that bluetooth headset can last, but the user does not use this moment for the consumption that bluetooth headset's electric quantity lasts makes the great improvement of bluetooth headset's loss.
Disclosure of Invention
The invention provides a low-loss wireless stereo Bluetooth headset based on the technical problem that a large amount of electric energy is still wasted when the existing Bluetooth headset is taken down in the using process.
The invention provides a low-loss wireless stereo Bluetooth headset which comprises a fixed head frame, wherein the bottom of one end of the fixed head frame is connected with a vertically arranged first fixed plate through a bolt, the bottom of the other end of the fixed head frame is connected with a vertically arranged second fixed plate through a bolt, the bottom of the first fixed plate is connected with a vertically arranged first fixed shell through a bolt, one end of the first fixed shell is connected with a vertically arranged first earphone shell through a bolt, the bottom of the second fixed plate is connected with a vertically arranged second fixed shell through a bolt, one end of the second fixed shell is connected with a vertically arranged second earphone shell through a bolt, one ends of the first earphone shell and the second earphone shell, which are close to each other, are respectively sleeved with a vertically arranged sound insulation rubber ring, one ends of the second fixed shell and the first fixed shell are respectively provided with a first hole, and the circumferential inner wall of the first hole is sleeved with a vertically arranged fixed plate, the utility model discloses a portable earphone, including earphone shell two, first earphone shell, second connection pad, second hole, and the circumference inner wall of second hole has cup jointed the public address otter board of vertical setting, the one end that earphone shell two and earphone shell are close to mutually all rotates the connection pad that has cup jointed vertical setting, and the connection pad is connected through the bolt with the fixed disk, the one end that earphone shell two and earphone shell are close to mutually all has the acoustic panel of vertical setting through bolted connection, the second hole has been seted up in the middle of the one end of acoustic panel, and the circumference inner wall in second hole has cup jointed the public address otter board of vertical setting, there is the loss module through bolted connection in the middle of the one end of.
Preferably, a rubber pad is pressed on the circumference of the bottom of the fixed head frame.
Preferably, a sound through hole is formed in the middle of one end of the sound insulation rubber ring.
Preferably, the sealing covers which are vertically arranged are sleeved on the circumferential inner walls of the first holes at one ends of the first fixed shell and the second fixed shell.
Preferably, the inner walls of the two earphone shells and the one end of the first earphone shell are both connected with a bass unit which is vertically arranged through bolts, and the bottom of the bass unit is connected with a treble unit through bolts.
Preferably, the tops of the first fixing plate and the second fixing plate are both connected with connecting blocks, and the connecting blocks are connected with the fixing head frame.
Preferably, the bottom of the inner walls of the two ends of the fixed head frame is provided with a vertically arranged folding groove, and the tops of the inner walls of the two sides of the folding groove are hinged with the tops of the two sides of the connecting block through damping hinges.
Preferably, the bottom of the connecting block is connected with a vertically arranged expansion plate through a bolt.
Preferably, the top of the first fixing plate is provided with a vertically arranged telescopic groove, and the telescopic groove is matched with the telescopic plate in size.
Preferably, the expansion plate is fixedly sleeved with the inner walls of the two sides of the expansion groove.
Compared with the prior art, the invention provides a low-loss wireless stereo Bluetooth headset, which has the following beneficial effects:
1. the low-loss wireless stereo Bluetooth headset is arranged in the working process, the light intensity of a cavity between a sound insulation rubber ring and the ears of a user is detected in real time by a photosensitive sensor in the daytime, the light intensity is zero when the wireless stereo Bluetooth headset is worn, the wireless stereo Bluetooth headset is fed back by a controller and is continuously powered for use, when the user takes down the wireless stereo Bluetooth headset for a long time and does not use the wireless stereo Bluetooth headset, the photosensitive sensor detects the light intensity, after long-time detection, the wireless stereo Bluetooth headset is determined to be not worn by the controller, and a bass unit and a treble unit; at evening, through the real-time detection of ultrasonic sensor reduce the distance between loss module and the person's of wearing ear, when the detection distance is too big for a long time, confirm through the controller and not wear the use, timely bass unit and the high pitch unit of closing reaches the purpose of reducing the loss, and reduces the loss module and be continuous operating condition, can be so that whole bluetooth headset's use loss falls to minimum state.
2. This low-loss wireless stereo bluetooth headset all installs high pitch unit and bass unit through setting up in earphone shell one and the inside of earphone shell two, through the signal processing of controller, plays high bass frequency division through bass unit and high pitch unit respectively, has improved bluetooth headset's use tone quality.
3. This low-loss wireless stereo bluetooth headset, through setting up folding recess in the bottom of fixed head frame, and the connecting block is the connected mode of damping hinge, make the inside of earphone shell one and earphone shell two of bottom all can fold to fixed head frame, convenient to use personnel accomodate and carry, and flexible recess has been seted up at the top of fixed plate one and fixed plate two, with the expansion plate joint of connecting block bottom, make the earphone shell one and earphone shell two of bottom can upper and lower adjusting position, improve this bluetooth headset's application range, and convenient to use adjusts, and convenient to use accomodates.
Drawings
Fig. 1 is a schematic view of an overall structure of a low-loss wireless stereo bluetooth headset according to the present invention;
fig. 2 is a schematic structural diagram of a sounding mechanism of a low-loss wireless stereo bluetooth headset according to the present invention;
fig. 3 is a schematic structural diagram of a loss reduction module of a low-loss wireless stereo bluetooth headset according to the present invention;
fig. 4 is a schematic diagram of a loss reduction flow structure of a low-loss wireless stereo bluetooth headset according to the present invention;
fig. 5 is a schematic structural diagram of a folding mechanism of a low-loss wireless stereo bluetooth headset according to the present invention.
In the figure: the sound-absorbing type earphone comprises a sound through hole 1, an earphone shell I2, a fixing shell I3, a sound-insulating rubber ring 4, a fixing plate I5, a connecting block 6, a rubber protection pad 7, a fixing head frame 8, a fixing plate II 9, a fixing shell II 10, a sealing cover 11, an earphone shell II 12, a sound-amplifying screen plate 13, a sound-amplifying plate 14, a bass unit 15, a fixing plate 16, a connecting plate 17, a treble unit 18, a loss reduction module 19, an ultrasonic sensor 20, a photosensitive sensor 21, a telescopic groove 22, a telescopic plate 23 and a folding groove 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, a low-loss wireless stereo bluetooth headset comprises a fixed head frame 8, wherein the bottom of one end of the fixed head frame 8 is connected with a vertically arranged first fixed plate 5 through a bolt, the bottom of the other end of the fixed head frame 8 is connected with a vertically arranged second fixed plate 9 through a bolt, the bottom of the first fixed plate 5 is connected with a vertically arranged first fixed shell 3 through a bolt, one end of the first fixed shell 3 is connected with a vertically arranged first earphone shell 2 through a bolt, the bottom of the second fixed plate 9 is connected with a vertically arranged second fixed shell 10 through a bolt, one end of the second fixed shell 10 is connected with a vertically arranged second earphone shell 12 through a bolt, one ends of the first earphone shell 2 and the second earphone shell 12, which are close to each other, are respectively sleeved with a vertically arranged sound insulation rubber ring 4, one ends of the second fixed shell 10 and the first fixed shell 3 are respectively provided with a first hole, and a vertically arranged fixed plate 16 is sleeved on the, earphone shell two 12 all rotates the connection pad 17 that has cup jointed vertical setting with the one end of earphone shell one 2, and connection pad 17 is connected through the bolt with fixed disk 16, the one end that earphone shell two 12 and earphone shell one 2 are close to mutually all has the amplifier 14 of vertical setting through bolted connection, the second hole has been seted up in the middle of the one end of amplifier 14, and the circumference inner wall in second hole has cup jointed the public address otter board 13 of vertical setting, there is loss module 19 through bolted connection in the middle of the one end of public address otter board 13, there is ultrasonic sensor 20 through bolted connection at the top through the one end of loss module 19, and there is photosensitive sensor 21 through bolted connection in the one end bottom of loss module 19.
The bottom circumference pressfitting of fixed head frame 8 has rubber protection pad 7, logical sound hole 1 has been seted up in the middle of the one end of syllable-dividing rubber ring 4, the sealed lid 11 of vertical setting has all been cup jointed to the circumference inner wall that the one end of first 3 of set casing and two 10 of set casing is located first hole, the one end inner wall of earphone casing two 12 and earphone casing one 2 all has the bass unit 15 of vertical setting through bolted connection, and the bottom position of bass unit 15 has high pitch unit 18 through bolted connection, fixed plate one 5 all is connected with connecting block 6 with the top of fixed plate two 9, and connecting block 6 is connected with fixed head frame 8.
In this embodiment: when the low-loss wireless stereo Bluetooth headset is used, an operator clamps the fixed head frame 8 on the head of a user in a head wearing mode, aligns the two sound insulation rubber rings 4 and the internal sound through hole 1 at the position of the cochlea of the operator, can use the headset by collecting and connecting Bluetooth, is internally integrated with a controller and a power supply module, can broadcast by collecting and playing media, can enable the ear to be worn more comfortably by rotating the connecting disc 17 at one end of the first headset shell 2 and the second headset shell 12 in the using process, is internally integrated with a high pitch unit 18 and a low pitch unit 15, enables the tone quality to be more perfect, and after the loss reduction module 19 is connected with the controller, detects the light intensity of a cavity between the sound insulation rubber rings 4 and the ears of the user in real time through the photosensitive sensor 21 in the working process, when the portable low-pitch loudspeaker is worn, the light intensity is zero, the controller feeds back the light intensity to continuously supply power for use, when a user takes down the portable low-pitch loudspeaker for a long time and does not use the portable low-pitch loudspeaker, the photosensitive sensor 21 detects the light intensity, the controller determines that the portable low-pitch loudspeaker is not worn for use after long-time detection, the bass unit 15 and the treble unit 18 are timely closed, and loss is reduced; at night, through the real-time detection of ultrasonic sensor 20 and fall the distance between loss module 19 and the person's of wearing the ear, when the detection distance is too big for a long time, confirm through the controller and not wear the use, timely bass unit 15 and high pitch unit 18 of closing reach the purpose of reducing the loss, and fall loss module 19 for lasting operating condition, can make the use loss of whole bluetooth headset fall to minimum state.
Example 2
Referring to fig. 1 to 5, a low-loss wireless stereo bluetooth headset according to the present embodiment further includes, in comparison with embodiment 1: folding groove 24 of vertical setting is all seted up to fixed head frame 8's both ends inner wall bottom, and the both sides inner wall top of folding groove 24 is articulated mutually through damping hinge and connecting block 6's both sides top, and there is the expansion plate 23 of vertical setting connecting block 6's bottom through bolted connection, and the flexible recess 22 of vertical setting is seted up at the top of fixed plate 5, and expansion groove 22 matches with expansion plate 23 size, and expansion plate 23 cup joints fixedly with expansion groove 22's both sides inner wall.
In this embodiment: folding groove 24 has been seted up in fixed head frame 8's bottom, and connecting block 6 is the connected mode of damping hinge, make earphone shell 2 and earphone shell two 12 of bottom all can fold to fixed head frame 8's inside, convenient to use personnel accomodate and carry, and flexible recess 22 has been seted up at fixed plate one 5 and fixed plate two 9's top, with the expansion plate 23 joint of connecting block 6 bottom, make earphone shell 2 and earphone shell two 12 of bottom can upper and lower adjusting position, improve this bluetooth headset's application range, and convenient to use accomodates.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A low-loss wireless stereo Bluetooth headset comprises a fixed head frame (8) and is characterized in that the bottom of one end of the fixed head frame (8) is connected with a vertically arranged first fixed plate (5) through a bolt, the bottom of the other end of the fixed head frame (8) is connected with a vertically arranged second fixed plate (9) through a bolt, the bottom of the first fixed plate (5) is connected with a vertically arranged first fixed shell (3) through a bolt, one end of the first fixed shell (3) is connected with a vertically arranged first earphone shell (2) through a bolt, the bottom of the second fixed plate (9) is connected with a vertically arranged second fixed shell (10) through a bolt, one end of the second fixed shell (10) is connected with a vertically arranged second earphone shell (12) through a bolt, and one end of the first earphone shell (2) close to the second earphone shell (12) is sleeved with a vertically arranged sound insulation rubber ring (4), the earphone comprises a fixing shell I (3), a fixing shell II (10) and an earphone shell II (12), wherein one end of the fixing shell I (3) is provided with a first hole, a fixing disc (16) which is vertically arranged is sleeved on the inner circumferential wall of the first hole, the other end of the earphone shell I (2) is provided with a connecting disc (17) which is vertically arranged in a rotating mode, the connecting disc (17) is connected with the fixing disc (16) through bolts, one end, close to the earphone shell I (2), of the earphone shell II (12) is connected with an amplifying plate (14) which is vertically arranged through bolts, a second hole is formed in the middle of one end of the amplifying plate (14), a vertically arranged screen plate (13) is sleeved on the inner circumferential wall of the second hole, a loss reducing module (19) is connected to the middle of one end of the amplifying plate (13) through bolts, one end of the loss reducing module (19) is connected with an ultrasonic sensor (20, and the bottom of one end of the loss reduction module (19) is connected with a photosensitive sensor (21) through a bolt.
2. The low-loss wireless stereo Bluetooth headset of claim 1, wherein a rubber pad (7) is pressed on the bottom circumference of the fixed head frame (8).
3. The low-loss wireless stereo Bluetooth headset of claim 2, wherein a sound through hole (1) is formed in the middle of one end of the sound insulation rubber ring (4).
4. The low-loss wireless stereo Bluetooth headset of claim 3, wherein the sealing covers (11) which are vertically arranged are sleeved on the circumferential inner walls of the first holes at one ends of the first fixed shell (3) and the second fixed shell (10).
5. The low-loss wireless stereo Bluetooth headset of claim 1, wherein the inner walls of the second headset shell (12) and the first headset shell (2) are connected with a vertically arranged bass unit (15) through bolts, and the bottom of the bass unit (15) is connected with a treble unit (18) through bolts.
6. The low-loss wireless stereo Bluetooth headset of claim 1, wherein the top of the first fixing plate (5) and the top of the second fixing plate (9) are both connected with a connecting block (6), and the connecting block (6) is connected with a fixing head frame (8).
7. The low-loss wireless stereo Bluetooth headset as claimed in claim 6, wherein the bottom of the inner walls of the two ends of the fixed head frame (8) are both provided with vertically arranged folding grooves (24), and the tops of the inner walls of the two sides of the folding grooves (24) are hinged to the tops of the two sides of the connecting block (6) through damping hinges.
8. The low-loss wireless stereo Bluetooth headset of claim 7, wherein the bottom of the connecting block (6) is connected with a vertically arranged expansion plate (23) through a bolt.
9. The low-loss wireless stereo Bluetooth headset of claim 8, wherein a vertically arranged telescopic groove (22) is formed at the top of the first fixing plate (5), and the telescopic groove (22) is matched with the telescopic plate (23) in size.
10. The low-loss wireless stereo Bluetooth headset of claim 9, wherein the expansion plate (23) is fixedly sleeved on the inner walls of two sides of the expansion groove (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367372.3A CN111385719A (en) | 2020-04-30 | 2020-04-30 | Low-loss wireless stereo Bluetooth headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367372.3A CN111385719A (en) | 2020-04-30 | 2020-04-30 | Low-loss wireless stereo Bluetooth headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111385719A true CN111385719A (en) | 2020-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010367372.3A Pending CN111385719A (en) | 2020-04-30 | 2020-04-30 | Low-loss wireless stereo Bluetooth headset |
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| CN (1) | CN111385719A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160212522A1 (en) * | 2015-01-21 | 2016-07-21 | Lg Electronics Inc. | Ear set device |
| CN105992087A (en) * | 2015-01-05 | 2016-10-05 | 致伸科技股份有限公司 | Earphone structure |
| CN207166694U (en) * | 2017-04-13 | 2018-03-30 | 微鲸科技有限公司 | A kind of earphone |
| US20180220220A1 (en) * | 2015-07-24 | 2018-08-02 | Lg Electronics Inc. | Earset and control method therefor |
| CN110333528A (en) * | 2019-06-24 | 2019-10-15 | Oppo广东移动通信有限公司 | A kind of detection method, device, earphone, terminal and computer readable storage medium |
| CN110351646A (en) * | 2019-06-19 | 2019-10-18 | 歌尔科技有限公司 | A kind of wearing detection method and headphone for headphone |
| CN110677763A (en) * | 2019-10-22 | 2020-01-10 | 北京耐德佳显示技术有限公司 | State detection device and earphone |
| WO2020023844A1 (en) * | 2018-07-26 | 2020-01-30 | Bose Corporation | Wearable audio device with capacitive touch interface |
-
2020
- 2020-04-30 CN CN202010367372.3A patent/CN111385719A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992087A (en) * | 2015-01-05 | 2016-10-05 | 致伸科技股份有限公司 | Earphone structure |
| US20160212522A1 (en) * | 2015-01-21 | 2016-07-21 | Lg Electronics Inc. | Ear set device |
| US20180220220A1 (en) * | 2015-07-24 | 2018-08-02 | Lg Electronics Inc. | Earset and control method therefor |
| CN207166694U (en) * | 2017-04-13 | 2018-03-30 | 微鲸科技有限公司 | A kind of earphone |
| WO2020023844A1 (en) * | 2018-07-26 | 2020-01-30 | Bose Corporation | Wearable audio device with capacitive touch interface |
| CN110351646A (en) * | 2019-06-19 | 2019-10-18 | 歌尔科技有限公司 | A kind of wearing detection method and headphone for headphone |
| CN110333528A (en) * | 2019-06-24 | 2019-10-15 | Oppo广东移动通信有限公司 | A kind of detection method, device, earphone, terminal and computer readable storage medium |
| CN110677763A (en) * | 2019-10-22 | 2020-01-10 | 北京耐德佳显示技术有限公司 | State detection device and earphone |
Non-Patent Citations (1)
| Title |
|---|
| 陈飞: "《低功耗智能云交互蓝牙耳机的设计与实现》", 《电脑知识与技术》 * |
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Application publication date: 20200707 |