Dual-channel switchable structure of bluetooth earphone
By using a dual-channel switchable structure in Bluetooth headphones and adjusting the sound playback direction with a knob, the limitations of cables and single-channel designs are solved, enabling flexible use and improved comfort of the headphones in different environments.
Patent Information
- Application Number
- CN202111221156.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2041-10-20
AI Technical Summary
Existing Bluetooth headphones suffer from inconvenience and poor comfort due to cable limitations and single-channel design, making them unsuitable for different usage environments.
Design a dual-channel switchable structure for Bluetooth headphones. Control the sound to be played from the front or rear speaker holes via an adjustment knob. Combined with a circuit module and speaker, this allows for flexible sound switching.
It improves the convenience and comfort of headphones, adapts to the needs of different usage occasions, reduces the impact on the eardrum, and enhances privacy.
Smart Images

Figure CN115996338B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a dual-channel switchable structure for Bluetooth headphones, specifically a structure that allows users to adjust the sound played by the speaker to be played out from the front or rear sound port according to different usage occasions and needs, making it more convenient to use and increasing its overall practicality. Background Technology
[0002] When people engage in various activities, such as sports, they often listen to different kinds of music. This not only prevents the activity from becoming too monotonous and boring, but also prevents external interference, adjusts different moods, and can even improve athletic performance. To avoid disturbing others while listening to music, people generally use various types of headphones. However, due to the influence of the wires, headphones often fall off during use because the wires are pulled by various movements, causing great inconvenience. Although wireless headphones have been developed, headphones are still inserted in the ear, and it is unavoidable that they will cause a foreign body sensation and discomfort to the user.
[0003] Therefore, the inventor developed a Bluetooth speaker that is installed in the temples of various types of glasses that people commonly wear. This not only eliminates the limitations of wires in its use, but also allows the sound signal to be transmitted directly to the eardrum through the ear because the Bluetooth speaker plays the sound signal directly behind the ear. This avoids damage to the user's ears caused by prolonged use and makes it more comfortable to use.
[0004] However, while the aforementioned design of incorporating Bluetooth speakers on the temples of the glasses can achieve the intended function of facilitating users to listen to music and communicate, it has been found in actual operation that the Bluetooth speakers are all located in a single position on the temples. This means that sound can only be played from a single point, and the position of the sound playback on the temples cannot be adjusted according to different usage environments, causing inconvenience in use and leaving room for improvement in the overall structure.
[0005] Therefore, based on this, the inventor, drawing on years of rich design, development and practical manufacturing experience in related industries, further researched and improved the technology to provide a Bluetooth headset with a dual-channel switchable structure, aiming to achieve better practical value. Summary of the Invention
[0006] The main objective of this invention is to provide a dual-channel switchable structure for Bluetooth headsets, which allows users to adjust the speaker's output according to different usage scenarios and needs, enabling the sound to be played out from either the front or rear speaker holes. This makes the headset more convenient to use and enhances its overall practicality.
[0007] The main purpose and function of the dual-channel switchable structure of the Bluetooth headset of this invention are achieved by the following specific technical means:
[0008] It mainly includes the headphone body, circuit module, and switching adjustment knob; among which:
[0009] The earphone body has a circuit module chamber inside, a speaker chamber inside the end of the earphone body, an adjustment knob chamber connected to the front of the speaker chamber, a rear sound hole opened out of the adjustment knob chamber, and a front sound hole opened at the front of the earphone body. A sound guide channel is provided between the adjustment knob chamber and the front sound hole.
[0010] The circuit module is housed in the circuit module chamber of the headphone body, and the circuit module is connected to a speaker. The speaker is housed in the speaker chamber of the headphone body so that the circuit module controls the speaker to play sound.
[0011] The switching adjustment knob is provided in the adjustment knob cavity of the headphone body, and a knob part is formed on the outer end face of the switching adjustment knob, so that the knob part protrudes from the headphone body. Furthermore, a first channel, a second channel and a third channel are respectively provided around the switching adjustment knob for connection and communication.
[0012] Therefore, when the switching adjustment knob is rotated so that the first channel corresponds to the speaker in the speaker enclosure, the second channel corresponds to the rear sound port, and the third channel is blocked by the inner wall of the adjustment knob enclosure, the sound played by the speaker passes through the first channel and the second channel and is played out through the rear sound port. When the switching adjustment knob is rotated so that the first channel is blocked by the inner wall of the adjustment knob enclosure, the second channel corresponds to the speaker in the speaker enclosure, and the third channel corresponds to the sound guide channel, the sound played by the speaker passes through the second channel and the third channel and then passes through the sound guide channel and is played out through the front sound port.
[0013] In a preferred embodiment of the dual-channel switchable structure of the Bluetooth headset of the present invention, the headset body has a connection hole that connects outward to the circuit module chamber, and the circuit module is connected to the battery via the connection hole.
[0014] In a preferred embodiment of the dual-channel switchable structure of the Bluetooth headset of the present invention, the adjustment knob cavity is recessed with a shaft hole in the middle, and the inner end face of the switching adjustment knob is provided with a shaft portion corresponding to the shaft hole.
[0015] In a preferred embodiment of the dual-channel switchable structure of the Bluetooth headset of the present invention, the periphery of the adjustment knob cavity is respectively provided with a first positioning hole and a second positioning hole, the inner end face of the switching adjustment knob is provided with a receiving hole, the receiving hole is provided with an elastic member, and the positioning member is pushed outward by the elastic member. The positioning member can be locked in the first positioning hole and the second positioning hole of the adjustment knob cavity for positioning as the switching adjustment knob rotates.
[0016] In a preferred embodiment of the dual-channel switchable structure of the Bluetooth headset of the present invention, the front end of the headset body is provided with a sound receiving hole that communicates with the circuit module chamber, so that the circuit module receives sound through the sound receiving hole.
[0017] In a preferred embodiment of the dual-channel switchable structure of the Bluetooth headset of the present invention, the inner edge of the adjustment knob cavity is provided with a limiting protrusion, and the outer edge of the switching adjustment knob is recessed with a limiting groove corresponding to the limiting protrusion, so that the switching adjustment knob can rotate within the range of the limiting groove. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:
[0019] Figure 1 : A three-dimensional exploded structural diagram of the present invention.
[0020] Figure 2 : A side view schematic diagram of the combined structure of the present invention.
[0021] Figure 3 : A partially enlarged cross-sectional view of the structure of the present invention.
[0022] Figure 4 : An exploded three-dimensional structural diagram of the switching adjustment knob of the present invention.
[0023] Figure 5 : A partially enlarged cross-sectional view of the first usage state of the present invention.
[0024] Figure 6 : A partially enlarged cross-sectional view of the second usage state of the present invention.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Headphone body; 11. Circuit module compartment;
[0027] 12. Connecting holes; 13. Speaker enclosure;
[0028] 14. Adjusting knob chamber; 141. Shaft hole;
[0029] 142. First positioning hole; 143. Second positioning hole;
[0030] 144. Limiting protrusion; 15. Rear speaker hole;
[0031] 16. Front speaker grille; 17. Sound guide channel;
[0032] 18. Microphone hole; 2. Circuit module;
[0033] 21. Storage battery; 22. Speaker;
[0034] 3. Switching adjustment knob; 31. Shaft section;
[0035] 32. Receiving hole; 321. Elastic element;
[0036] 322. Positioning component; 33. Limiting groove;
[0037] 34. Knob section; 35. First channel;
[0038] 36. Second channel; 37. Third channel. Detailed Implementation
[0039] To provide a more complete and clear disclosure of the technical content, purpose, and effects of this invention, a detailed description is provided below, along with reference to the disclosed drawings and figure numbers:
[0040] First, please refer to Figure 1 Schematic diagram of the three-dimensional exploded structure of the present invention, Figure 2 Side view assembly structure schematic diagram of the present invention and Figure 3 As shown in the partially enlarged cross-sectional view of the present invention, the present invention mainly includes an earphone body 1, a circuit module 2, and a switching adjustment knob 3; wherein:
[0041] The headphone body 1 has a circuit module 11 inside, and a connection hole 12 is formed between the circuit module chamber 11 and the headphone body 1. A speaker chamber 13 is provided inside the end of the headphone body 1. An adjustment knob chamber 14 is provided at the front end of the headphone body 1 corresponding to the speaker chamber 13. A shaft hole 141 is recessed in the middle of one side of the adjustment knob chamber 14. A first positioning hole 142 and a second positioning hole 143 are respectively recessed around the adjustment knob chamber 14 corresponding to the shaft hole 141. A limiting protrusion 144 is provided on the inner edge of the adjustment knob chamber 14. A rear sound hole 15 is opened outside the adjustment knob chamber 14 and a front sound hole 16 is opened at the front end of the headphone body 1. A sound guide channel 17 is provided between the adjustment knob chamber 14 and the front sound hole 16 for connection. A sound receiving hole 18 is provided at the front end of the headphone body 1 and is connected to the circuit module chamber 11.
[0042] The circuit module 2 is housed within the circuit module chamber 11 of the headphone body 1. The circuit module 2 is connected to the battery 21 via the connection hole 12 of the headphone body 1. The circuit module 2 is also connected to a speaker 22, which is housed within the speaker chamber 13 of the headphone body 1. This allows the circuit module 2 to be powered by the battery 21, control the speaker 22 to play sound, and control the sound reception through the receiver hole 18 of the headphone body 1.
[0043] Please refer to the switching adjustment knob 3 again. Figure 4 The exploded three-dimensional structural diagram of the switching adjustment knob of the present invention shows that it is disposed within the adjustment knob cavity 14 of the headphone body 1. A shaft portion 31 is provided on the inner end face of the switching adjustment knob 3 corresponding to the shaft hole 141 of the adjustment knob cavity 14. A receiving hole 32 is also provided on the inner end face of the switching adjustment knob 3. An elastic element 321 is provided within the receiving hole 32. The elastic element 321 pushes the positioning element 322 outward. The positioning element 322 can be locked into the first positioning hole 142 or the second positioning hole 143 of the adjustment knob cavity 14 as the switching adjustment knob 3 rotates. Positioning is performed, and a limiting groove 33 is recessed on the outer edge of the switching adjustment knob 3 corresponding to the limiting protrusion 144 of the adjustment knob chamber 14. This allows the switching adjustment knob 3 to rotate within the range of the limiting groove 33 because the two ends of the limiting groove 33 are blocked by the limiting protrusion 144. A knob part 34 is formed on the outer end face of the switching adjustment knob 3, so that the knob part 34 protrudes from the outer side of the earphone body 1. Furthermore, a first channel 35, a second channel 36, and a third channel 37 are respectively provided around the periphery of the switching adjustment knob 3 for connection and conduction.
[0044] Therefore, please refer to the following as well. Figure 5 The first enlarged cross-sectional view of the present invention in its first usage state shows that, during the process of the circuit module 2 controlling the speaker 22 to play sound, the switch adjustment knob 3 can be rotated via the knob part 34. The switch adjustment knob 3 rotates within the adjustment knob chamber 14 of the headphone body 1 about the shaft part 31. When the switch adjustment knob 3 rotates to the point where the positioning member 322, pushed outward by the elastic member 321, is locked in the first positioning hole 142 of the adjustment knob chamber 14, the limiting protrusion 144 of the adjustment knob chamber 14 also blocks one end of the limiting groove 33 of the switch adjustment knob 3. At this time, the first channel 35 corresponds precisely to... The speaker 22 and the second channel 36 within the speaker enclosure 13 correspond precisely to the rear sound port 15. The third channel 37 is blocked by the inner wall of the adjustment knob enclosure 14. The sound played by the speaker 22 passes through the first channel 35 and the second channel 36 and is then played outward through the rear sound port 15. Since the rear sound port 15 is positioned directly behind the user's ear, the sound can be conducted through the ear to the eardrum, preventing the eardrum from being directly damaged by sound waves. It also reduces sound pressure, making the sound softer. Furthermore, when riding a bicycle or motorcycle outdoors, the sound emitted is not affected by outdoor noise or wind, thus maintaining listening quality.
[0045] Please also refer to the following: Figure 6 As shown in the partially enlarged cross-sectional view of the second usage state of the present invention, when the switching adjustment knob 3 is rotated via the knob part 34 until the positioning member 322 is locked in the second positioning hole 143 of the adjustment knob cavity 14, the limiting protrusion 144 of the adjustment knob cavity 14 blocks the other end of the limiting groove 33 of the switching adjustment knob 3. At this time, the first channel 35 is blocked by the inner wall of the adjustment knob cavity 14, and the second channel 36 corresponds to the position inside the speaker cavity 13. The speaker 22 and the third channel 37 correspond to the sound guide channel 17. The sound played by the speaker 22 passes through the second channel 36 and the third channel 37, and then through the sound guide channel 17 to be played outward through the front sound hole 16. Since the front sound hole 16 is located in front of the user's ear, the sound can be directly conducted to the eardrum through the air, which can reduce the volume of the played sound. This not only avoids affecting others, but also prevents others from hearing the conversation, thus providing better privacy.
[0046] As can be seen from the above description and specific embodiments of the present invention, compared with the prior art, the present invention mainly enables users to adjust the sound played by the speaker to be played out from the front or rear sound holes according to different usage occasions and different usage needs, making it more convenient to use and increasing its practicality in overall implementation.
Claims
1. A Bluetooth headset with a dual-channel switchable structure, characterized in that, include: The main body of the earphone, the circuit module, and the switching adjustment knob; among which: The earphone body has a circuit module chamber inside, a speaker chamber inside the end of the earphone body, an adjustment knob chamber connected to the front of the speaker chamber, a rear sound hole opened from the adjustment knob chamber to the outside of the earphone body, and a front sound hole opened at the front of the earphone body. A sound guide channel is provided between the adjustment knob chamber and the front sound hole. The circuit module is housed in the circuit module chamber of the headphone body, and the circuit module is connected to a speaker. The speaker is housed in the speaker chamber of the headphone body so that the circuit module controls the speaker to play sound. The switching adjustment knob is provided in the adjustment knob cavity of the headphone body. A knob part is formed on the outer end face of the switching adjustment knob, so that the knob part protrudes from the headphone body. A first channel, a second channel and a third channel are respectively provided on the periphery of the switching adjustment knob for connection and communication. Therefore, when the switching adjustment knob is rotated so that the first channel corresponds to the speaker in the speaker enclosure, the second channel corresponds to the rear sound hole, and the third channel is blocked by the inner wall of the adjustment knob enclosure, the sound played by the speaker passes through the first channel and the second channel and is played out through the rear sound hole. When the switching adjustment knob is rotated so that the first channel is blocked by the inner wall of the adjustment knob enclosure, the second channel corresponds to the speaker in the speaker enclosure, and the third channel corresponds to the sound guide channel, the sound played by the speaker passes through the second channel and the third channel and then passes through the sound guide channel and is played out through the front sound hole.
2. The Bluetooth headset dual-channel switchable structure as described in claim 1, characterized in that, The earphone body has a connection hole that connects outward to the circuit module chamber, and the circuit module is connected to the battery via the connection hole.
3. The Bluetooth headset dual-channel switchable structure as described in claim 1, characterized in that, The adjustment knob chamber has a recessed shaft hole in the middle, and the inner end face of the switching adjustment knob has a shaft part that is connected to the shaft hole.
4. The Bluetooth headset dual-channel switchable structure as described in claim 1, characterized in that, The adjustment knob chamber is recessed with a first positioning hole and a second positioning hole on its periphery. The inner end face of the switching adjustment knob is provided with a receiving hole. An elastic element is provided in the receiving hole, and the elastic element pushes the positioning element outward. The positioning element can be locked in the first positioning hole and the second positioning hole of the adjustment knob chamber for positioning as the switching adjustment knob rotates.
5. The Bluetooth headset dual-channel switchable structure as described in claim 1, characterized in that, The earphone body has a sound receiving hole at the front end that communicates with the circuit module chamber, allowing the circuit module to receive sound through the sound receiving hole.
6. The Bluetooth headset dual-channel switchable structure as described in claim 1, characterized in that, The inner edge of the adjustment knob cavity is provided with a limiting protrusion, and the outer edge of the switching adjustment knob is provided with a limiting groove corresponding to the limiting protrusion, so that the switching adjustment knob can rotate within the range of the limiting groove.
Citation Information
Patent Citations
Multi-channel hanging loudspeaker device provided with movable switching structure and assembly method thereof
CN103067827A
Bluetooth infinite extension earphone
CN109151640A