Audio equipment with active noise reduction structure and method thereof

Abstract

The invention discloses audio equipment with an active noise reduction structure and a method thereof, and relates to the field of audio equipment. According to the audio equipment with the active noise reduction structure and the method thereof, the audio equipment comprises an earphone main body and an active noise reduction unit arranged in the earphone main body, and a protection unit is arranged in the earphone main body; and the outer wall of the earphone main body is in threaded connection with an overhauling unit for overhauling the earphone main body. According to the audio equipment with the active noise reduction structure and the method thereof, the split protection unit and the earmuffs are arranged, and a movable rod on the protection unit is pressed, so that a filter screen can be quickly disassembled and assembled, the filter screen on which dust is attached and accumulated can be conveniently replaced or cleaned in time, and the problem that the filter screen affects the output sound effect of an earphone is avoided; meanwhile, the overhauling unit is arranged on the side wall of the earphone main body, and the active noise reduction element in the earphone main body can be conveniently overhauled by rotating a threaded plate on the overhauling unit.

Description

Technical Field

[0001] The present invention relates to the technical field of audio equipment, and in particular to an audio equipment with an active noise reduction structure and a method thereof. Background Art

[0002] Active noise reduction is an advanced noise reduction technology that is widely used in audio equipment, especially headphones and earplugs. It mainly captures and analyzes environmental noise through a built-in microphone, and then uses a digital signal processing chip to generate sound waves opposite to the noise, that is, inverse sound waves, to offset external noise. This technology is usually used to reduce low-frequency noise, such as human voices, wind noise, etc., to provide users with clearer and purer sound quality. Active noise reduction devices combine isolation and elimination, with an average noise reduction of up to 30dB, effectively improving the user's hearing experience in noisy environments.

[0003] The earmuffs and protective mesh covers on existing headphones are mostly integrated structures, which makes it difficult to disassemble and clean the dusty protective mesh covers. In addition, the dust on the protective mesh covers easily penetrates into the headphones, causing poor contact of the internal components, making it difficult to perform maintenance and affecting normal use.

[0004] The reason for this problem is that, currently, active noise reduction headphones mainly isolate the ear canal and the playback speaker through the protective mesh on the earmuff. Since the playback speaker will vibrate when playing audio, this vibration is easy to attract dust around it. After long-term use, the dust is easy to slowly adhere to the protective mesh, causing the protective mesh to be blocked. The earmuffs and protective mesh of the headphone are mostly integrated structures, which are not convenient for disassembly and cleaning. Replacing new earmuffs is easy to increase the overall cost of the headphones. At the same time, the protective mesh with dust on it is easy to affect the sound quality of the headphones. The dust on the protective mesh is easy to invade the inside of the headphones, causing poor contact of the internal components, which is not convenient for maintenance and affects normal use. In view of the shortcomings of the existing technology, we propose an audio device with an active noise reduction structure and a method thereof to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an audio device with an active noise reduction structure and a method thereof, which solves the problem that the earmuffs and protective mesh covers on the headphones are mostly integrated structures, which makes it inconvenient to disassemble and clean the protective mesh covers that are attached with dust, and the dust on the protective mesh covers can easily invade the interior of the headphones, causing poor contact of the internal components, making it inconvenient to repair and affecting normal use.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an audio device with an active noise reduction structure and a method thereof, comprising an earphone body and an active noise reduction unit arranged inside the earphone body, wherein a protective unit is arranged inside the earphone body;

[0007] The protection unit includes a threaded cylinder, a filter screen, a movable rod and a clamping rod;

[0008] The threaded barrel is fixedly mounted on the side wall of the earphone body, the outer peripheral wall of the threaded barrel is threadedly connected with an earmuff, the filter is movably plugged into the inner wall of the threaded barrel, the clamping rod passes through the inner wall of the threaded barrel, the clamping rod is clamped at both ends of the filter, the clamping rod is used to fix the filter, the movable rod is slidably connected to the inside of the threaded barrel, and the movable rod is used to move the clamping rod;

[0009] The outer wall of the earphone body is threadedly connected with an inspection unit, and the inspection unit is used to inspect the earphone body.

[0010] Preferably, the active noise reduction unit includes a playback speaker, a built-in microphone and a noise reduction chip;

[0011] The playback speaker, the built-in microphone and the noise reduction chip are all connected via a connecting line.

[0012] Preferably, a square piece is fixedly connected to the inner wall of the threaded barrel, and the clamping rod passes through the side wall of the square piece;

[0013] Square grooves are provided on both sides of the filter screen, a clamping groove is provided inside the square groove, the square piece is inserted inside the square groove, and the clamping rod is movably inserted inside the clamping groove.

[0014] Preferably, the protection unit further comprises a wedge-shaped piece and a spring;

[0015] The wedge-shaped piece is fixedly connected to the end of the movable rod, the wedge-shaped piece is slidably connected to the inside of the threaded tube, and the spring is sleeved on the outer peripheral wall of the movable rod;

[0016] Preferably, a slide groove is provided at the bottom of the wedge-shaped piece, a sliding block is fixedly connected to the top of the clamping rod, and the sliding block is slidably connected inside the slide groove.

[0017] Preferably, the spring is fixedly connected between the threaded barrel and the wedge-shaped piece, and the spring is used to reset the wedge-shaped piece.

[0018] Preferably, the inspection unit comprises a threaded plate, a filter plate and a rotating plate;

[0019] The threaded plate is threadedly connected to the side wall of the earphone body, the filter plate is clamped on the inner wall of the threaded plate, the rotating plate is rotatably connected to the side wall of the threaded plate, the rotating plate is clamped on the side wall of the filter plate, and the rotating plate is used to fix the filter plate.

[0020] Preferably, a plurality of groups of sound-absorbing holes are provided on the side wall of the threaded plate, wherein the sound-absorbing holes are opposite to the positions of the built-in microphones, and the sound-absorbing holes correspond to the positions of the filter plates.

[0021] Preferably, a round rod is fixedly connected to the side wall of the threaded plate, and the round rod is used to rotate the threaded plate;

[0022] The side wall of the threaded plate is fixedly connected with a rubber rod, the rotating plate is rotatably connected to the outer peripheral wall of the rubber rod, and the rubber rod is used to increase the friction force of the rotating plate.

[0023] S1: First rotate the earmuff to remove it from the headset body, then press the movable rod to drive the wedge-shaped piece to move inward. At the same time, the slider will slide in the slide groove on the wedge-shaped piece and shrink into the square piece. At this time, the filter can be taken out for replacement;

[0024] S2: Next, loosen the movable rod, and the wedge-shaped piece can be reset by the tension of the spring. At this time, the wedge-shaped piece will reset the slider and the clamping rod downward, and the clamping rod will be inserted into the clamping slot of the new filter to fix it;

[0025] S3: Finally, turn the threaded plate to remove it from the earphone body, so that the active noise reduction unit inside the earphone body can be inspected and repaired. At the same time, the plate can be retracted into the threaded plate by turning it, and the threaded plate can be cleaned or replaced at this time.

[0026] The present invention discloses an audio device with an active noise reduction structure and a method thereof, which have the following beneficial effects: the audio device with an active noise reduction structure and a method thereof, by arranging a split protection unit and an earmuff on an earphone main body, can quickly disassemble and assemble the filter by pressing a movable rod on the protection unit, so as to facilitate timely replacement or cleaning of the filter on which dust is adhered and accumulated, thereby avoiding the problem that the filter affects the output sound effect of the earphone, and at the same time, an inspection unit is arranged on the side wall of the earphone main body, and by rotating the threaded plate on the inspection unit, it is convenient to inspect and repair the internal active noise reduction element of the earphone main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the earphone body of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the protection unit of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the filter screen of the present invention;

[0031] Figure 4 It is a partial structural schematic diagram of the movable rod and the clamping rod of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the earmuff of the present invention;

[0033] Figure 6 It is a structural schematic diagram of a round rod of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the threaded plate of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the filter plate of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the rotating plate of the present invention;

[0037] Fig.10 It is a schematic diagram of the internal structure of the earphone body of the present invention.

[0038] In the figure: 1. earphone body; 11. active noise reduction unit; 111. playback speaker; 112. built-in microphone; 113. noise reduction chip; 2. earmuffs; 3. protection unit; 31. threaded cylinder; 311. square piece; 32. filter; 321. square groove; 322. card slot; 33. movable rod; 331. slide groove; 34. wedge-shaped piece; 35. spring; 36. card rod; 361. slider; 4. maintenance unit; 41. threaded plate; 42. round rod; 43. sound absorbing hole; 44. filter plate; 45. rotating plate; 451. rubber rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The embodiments of the present application provide an audio device with an active noise reduction structure and a method thereof, thereby solving the problem that the earmuffs and protective mesh covers on headphones are mostly integrated structures, which makes it inconvenient to disassemble and clean the protective mesh covers that are clogged with dust, and the dust on the protective mesh covers easily invades the interior of the headphones, causing poor contact of the internal components, making it inconvenient to carry out maintenance, and affecting normal use.

[0041] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] The embodiment of the present invention discloses an audio device with an active noise reduction structure and a method thereof.

[0043] According to the attached Figure 1-10 As shown, an audio device with an active noise reduction structure and a method thereof, comprising an earphone main body 1 and an active noise reduction unit 11 arranged inside the earphone main body 1, wherein a protection unit 3 is arranged inside the earphone main body 1; the protection unit 3 comprises a threaded barrel 31, a filter 32, a movable rod 33 and a clamping rod 36, by arranging a split protection unit 3 and an earmuff 2 on the earphone main body 1, the filter 32 can be quickly disassembled and assembled by pressing the movable rod 33 on the protection unit 3, and the active noise reduction unit 11 in the earphone main body 1 can be protected by the filter 32, thereby avoiding the problem that the current filter 32 is fixed on the earmuff 2, i.e., it is difficult to disassemble and clean it, and the filter 32 with dust and debris attached and accumulated is easy to directly contact with the ear, which will affect the output sound effect of the earphone, and at the same time, an inspection unit 4 is arranged on the side wall of the earphone main body 1, and the active noise reduction unit 11 inside the earphone main body 1 can be easily inspected by rotating the threaded plate 41 on the inspection unit 4;

[0044] The threaded barrel 31 is fixedly mounted on the side wall of the earphone body 1, and the outer peripheral wall of the threaded barrel 31 is threadedly connected with the earmuff 2. The earmuff 2 can be removed from the earphone body 1 by rotating it, and the filter 32 can be disassembled and assembled at this time, saving the cost of replacing the earmuff 2 as a whole. The filter 32 is movably plugged into the inner wall of the threaded barrel 31, and the clamping rod 36 passes through the inner wall of the threaded barrel 31. The clamping rod 36 is clamped at both ends of the filter 32, and the clamping rod 36 is used to fix the filter 32. The movable rod 33 is slidably connected to the inside of the threaded barrel 31, and the movable rod 33 is used to move the clamping rod 36;

[0045] The outer wall of the earphone body 1 is threadedly connected with a maintenance unit 4 , and the maintenance unit 4 is used to perform maintenance on the earphone body 1 , so as to facilitate maintenance of the active noise reduction unit 11 inside the earphone body 1 .

[0046] The active noise reduction unit 11 includes a playback speaker 111, a built-in microphone 112 and a noise reduction chip 113; the playback speaker 111, the built-in microphone 112 and the noise reduction chip 113 are electrically connected via a connecting line. The playback speaker 111 can play audio for relaxation, the built-in microphone 112 can select surrounding noise, and the noise reduction chip 113 can generate an anti-phase sound wave equal to the external noise to neutralize the noise, thereby achieving the effect of noise reduction. The specific principle and operation of the active noise reduction unit 11 can refer to the active noise reduction headphone model SONY WH-1000XM2.

[0047] A square piece 311 is fixedly connected to the inner wall of the threaded cylinder 31, and the clamping rod 36 passes through the side wall of the square piece 311; square grooves 321 are provided on both sides of the filter screen 32, and a clamping groove 322 is provided inside the square groove 321. The square piece 311 is inserted into the inside of the square groove 321, and the clamping rod 36 is movably inserted into the inside of the clamping groove 322. By clamping the square groove 321 on the filter screen 32 onto the square piece 311, the filter screen 32 can be easily clamped and limited by the square piece 311.

[0048] The protection unit 3 also includes a wedge-shaped piece 34 and a spring 35; the wedge-shaped piece 34 is fixedly connected to the end of the movable rod 33, and the wedge-shaped piece 34 is slidably connected to the inside of the threaded tube 31; a slide groove 331 is provided at the bottom of the wedge-shaped piece 34, and a slider 361 is fixedly connected to the top of the clamping rod 36, and the slider 361 is slidably connected to the inside of the slide groove 331. By pressing the movable rod 33 inward, the movable rod 33 can drive the wedge-shaped piece 34 to move inward, and at the same time drive the slider 361 to slide in the slide groove 331 at the bottom of the wedge-shaped piece 34 and shrink to the inside of the square piece 311, so that the filter 32 can be taken out for replacement or cleaning;

[0049] The spring 35 is sleeved on the outer peripheral wall of the movable rod 33. The spring 35 is fixedly connected between the threaded tube 31 and the wedge-shaped piece 34. The spring 35 is used to reset the wedge-shaped piece 34. After the movable rod 33 is released, the wedge-shaped piece 34 can be reset by the pulling force of the spring 35. At this time, the wedge-shaped piece 34 will reset the slider 361 and the clamping rod 36 downward, and the clamping rod 36 will be inserted into the clamping groove 322 on the filter 32 to re-fix the filter 32.

[0050] The inspection unit 4 includes a threaded plate 41, a filter plate 44 and a rotating plate 45; the threaded plate 41 is threadedly connected to the side wall of the earphone body 1, the filter plate 44 is clamped on the inner wall of the threaded plate 41, the rotating plate 45 is rotatably connected to the side wall of the threaded plate 41, the rotating plate 45 is clamped on the side wall of the filter plate 44, and the rotating plate 45 is used to fix the filter plate 44. By rotating the rotating plate 45, it is contracted in the threaded plate 41. At this time, the threaded plate 41 can be cleaned or replaced, and then the rotating plate 45 is rotated in the opposite direction so that the rotating plate 45 is clamped on the side wall of the new filter plate 44 to fix it.

[0051] The side wall of the threaded plate 41 is provided with a plurality of sound-absorbing holes 43, which are opposite to the position of the built-in microphone 112, and correspond to the position of the filter plate 44. The built-in microphone 112 can absorb external sounds through the sound-absorbing holes 43, and the built-in microphone 112 can be protected through the filter plate 44, thereby preventing external dust and other impurities from easily entering the interior of the earphone body 1 through the sound-absorbing holes 43, thereby causing damage to the components of the active noise reduction unit 11 in the earphone body 1;

[0052] A round rod 42 is fixedly connected to the side wall of the threaded plate 41, and the round rod 42 is used to rotate the threaded plate 41. The round rod 42 can be used to rotate the threaded plate 41 and increase the aesthetics of the threaded plate 41 and the earphone body 1; a rubber rod 451 is fixedly connected to the side wall of the threaded plate 41, and the rotating plate 45 is rotatably connected to the outer peripheral wall of the rubber rod 451. The rubber rod 451 can be used to increase the friction of the rotating plate 45, thereby avoiding the rotating plate 45 from rotating at will in the absence of external force.

[0053] S1: First, rotate the earmuff 2 to remove it from the earphone body 1, then press the movable rod 33 to drive the wedge-shaped piece 34 to move inward, and at the same time, the slider 361 will slide in the slide groove 331 on the wedge-shaped piece 34 and shrink into the square piece 311, and the filter 32 can be taken out for replacement;

[0054] S2: Next, the movable rod 33 is loosened, and the wedge-shaped member 34 can be reset by the tension of the spring 35. At this time, the wedge-shaped member 34 will reset the slider 361 and the clamping rod 36 downward, and the clamping rod 36 will be inserted into the clamping groove 322 of the new filter 32 to be fixed;

[0055] S3: Finally, rotate the threaded plate 41 to remove it from the earphone body 1, so that the active noise reduction unit 11 inside the earphone body 1 can be inspected and repaired. At the same time, the rotating plate 45 is used to shrink it into the threaded plate 41, and the threaded plate 41 can be cleaned or replaced at this time.

[0056] When the present invention is in use, the earmuff 2 can be removed from the earphone body 1 by first rotating it, and then the movable rod 33 can be pressed to drive the wedge-shaped piece 34 to move inward, and at the same time, the slider 361 will slide in the slide groove 331 on the wedge-shaped piece 34 and shrink into the square piece 311, at this time, the filter 32 can be taken out for replacement, and then the movable rod 33 is released, and the wedge-shaped piece 34 can be reset by the pulling force of the spring 35, at this time, the wedge-shaped piece 34 will reset the slider 361 and the clamping rod 36 downward, and the clamping rod 36 will be inserted into the clamping groove 322 of the new filter 32 for fixation, and finally, the threaded plate 41 is rotated to remove it from the earphone body 1, so that the active noise reduction unit 11 inside the earphone body 1 can be inspected, and at the same time, the rotating plate 45 is used to shrink it into the threaded plate 41, and the threaded plate 41 can be cleaned or replaced.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An audio device with an active noise reduction structure and a method thereof, comprising an earphone body (1) and an active noise reduction unit (11) arranged inside the earphone body (1), characterized in that: A protection unit (3) is arranged inside the earphone body (1); The protection unit (3) comprises a threaded cylinder (31), a filter screen (32), a movable rod (33) and a clamping rod (36); The threaded barrel (31) is fixedly mounted on the side wall of the earphone body (1); the outer peripheral wall of the threaded barrel (31) is threadedly connected to the earmuff (2); the filter (32) is movably inserted into the inner wall of the threaded barrel (31); the clamping rod (36) passes through the inner wall of the threaded barrel (31); the clamping rod (36) is clamped at both ends of the filter (32); the clamping rod (36) is used to fix the filter (32); the movable rod (33) is slidably connected to the inside of the threaded barrel (31); the movable rod (33) is used to move the clamping rod (36); The outer wall of the earphone body (1) is threadedly connected to a maintenance unit (4), and the maintenance unit (4) is used to perform maintenance on the earphone body (1).

2. The audio device with active noise reduction structure and method thereof according to claim 1, characterized in that: The active noise reduction unit (11) comprises a playback speaker (111), a built-in microphone (112) and a noise reduction chip (113); The playback speaker (111), the built-in microphone (112) and the noise reduction chip (113) are all connected via connecting wires.

3. The audio device with active noise reduction structure and method thereof according to claim 1, characterized in that: The inner wall of the threaded cylinder (31) is fixedly connected with a square piece (311), and the clamping rod (36) passes through the side wall of the square piece (311); The filter screen (32) is provided with square grooves (321) on both sides, the square groove (321) is provided with a clamping groove (322) inside, the square member (311) is inserted into the inside of the square groove (321), and the clamping rod (36) is movably inserted into the inside of the clamping groove (322).

4. The audio device with active noise reduction structure and method thereof according to claim 1, characterized in that: The protection unit (3) further comprises a wedge-shaped piece (34) and a spring (35); The wedge-shaped piece (34) is fixedly connected to the end of the movable rod (33), the wedge-shaped piece (34) is slidably connected to the inside of the threaded cylinder (31), and the spring (35) is sleeved on the outer peripheral wall of the movable rod (33).

5. The audio device with active noise reduction structure and method thereof according to claim 4, characterized in that: A sliding groove (331) is provided at the bottom of the wedge-shaped piece (34), and a sliding block (361) is fixedly connected to the top of the clamping rod (36), and the sliding block (361) is slidably connected inside the sliding groove (331).

6. The audio device with active noise reduction structure and method thereof according to claim 4, characterized in that: The spring (35) is fixedly connected between the threaded cylinder (31) and the wedge-shaped piece (34), and the spring (35) is used to reset the wedge-shaped piece (34).

7. The audio device with active noise reduction structure and method thereof according to claim 1, characterized in that: The inspection unit (4) comprises a threaded plate (41), a filter plate (44) and a rotating plate (45); The threaded plate (41) is threadedly connected to the side wall of the earphone body (1), the filter plate (44) is clamped on the inner wall of the threaded plate (41), the rotating plate (45) is rotatably connected to the side wall of the threaded plate (41), the rotating plate (45) is clamped on the side wall of the filter plate (44), and the rotating plate (45) is used to fix the filter plate (44).

8. The audio device with active noise reduction structure and method thereof according to claim 7, characterized in that: The side wall of the threaded plate (41) is provided with a plurality of groups of sound absorption holes (43), wherein the sound absorption holes (43) are opposite to the positions of the built-in microphone (112), and the sound absorption holes (43) are corresponding to the positions of the filter plate (44).

9. The audio device with active noise reduction structure and method thereof according to claim 8, characterized in that: A round rod (42) is fixedly connected to the side wall of the threaded plate (41), and the round rod (42) is used to rotate the threaded plate (41); A rubber rod (451) is fixedly connected to the side wall of the threaded plate (41), and the rotating plate (45) is rotatably connected to the outer peripheral wall of the rubber rod (451). The rubber rod (451) is used to increase the friction force of the rotating plate (45).

10. A method for using an audio device with an active noise reduction structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: First, the earmuff (2) is rotated to remove it from the earphone body (1), and then the movable rod (33) is pressed to drive the wedge-shaped piece (34) to move inward, and at the same time, the slider (361) slides in the slide groove (331) on the wedge-shaped piece (34) and shrinks into the square piece (311), and the filter (32) can be taken out for replacement; S2: Next, the movable rod (33) is loosened, and the wedge-shaped piece (34) can be reset by the pulling force of the spring (35). At this time, the wedge-shaped piece (34) will reset the slider (361) and the clamping rod (36) downward, and the clamping rod (36) will be inserted into the clamping groove (322) of the new filter (32) to be fixed; S3: Finally, the threaded plate (41) is rotated to remove it from the earphone body (1), so that the active noise reduction unit (11) inside the earphone body (1) can be inspected and repaired. At the same time, the threaded plate (41) is retracted into the threaded plate (41) by the rotating plate (45), and the threaded plate (41) can be cleaned or replaced.

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