Wireless earphone with acoustic noise reduction structure

Abstract

The utility model relates to the technical field of wireless earphones, in particular to a wireless earphone with an acoustic noise reduction structure, which comprises a fixed shell and an outer sleeve, one side of the fixed shell is provided with the outer sleeve, the inner side of the fixed shell is fixedly connected with a noise reduction assembly, one side of the noise reduction assembly is provided with a loudspeaker, and one side of the fixed shell is fixedly connected with an impurity blocking cover. Sound absorption cotton is installed on the inner side of the fixed outer shell, a metal sleeve plate is fixedly connected to the outer side of the fixed outer shell, the noise reduction assembly comprises a first foaming aluminum conical shell, a first porous sound absorption material plate is fixedly connected to the inner side of the first foaming aluminum conical shell, and a silica gel column is fixedly connected to one side of the first foaming aluminum conical shell. Noise can be degraded, the sound quality transmitted to the auditory sense of a worker by the loudspeaker is ensured, meanwhile, the device does not hinder normal circulation of gas, the stuffiness of the device and the ears of the worker is reduced, and the wearing comfort of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless earphones, in particular to a wireless earphone with an acoustic noise reduction structure. Background Art

[0002] The patent background technology of wireless headphones with acoustic noise reduction structure mainly focuses on improving the sound quality experience of wireless headphones and the user's comfort in noisy environments. Acoustic noise reduction technology is an important direction of the current development of wireless headphone technology. It improves call clarity and music playback quality by reducing or eliminating background noise.

[0003] When wireless headphones are used in noisy places such as factory workshops, it is easy to make it difficult to hear the content of the headphone conversation due to excessive external noise. The existing device sets a sound insulation structure inside the headphone to seal the headphone. Although it has a noise reduction effect, it will affect the wearing comfort of workers when used in summer. Therefore, a wireless headset with an acoustic noise reduction structure is proposed to address the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a wireless headset with an acoustic noise reduction structure to solve the problem that the existing device sets a sound insulation structure inside the headset to seal the headset, which has a noise reduction effect but affects the comfort of workers when used in summer.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wireless headset with an acoustic noise reduction structure, comprising a fixed shell and a jacket, wherein the jacket is installed on one side of the fixed shell, a noise reduction component is fixedly connected to the inner side of the fixed shell, a speaker is installed on one side of the noise reduction component, a foreign matter blocking cover is fixedly connected to one side of the fixed shell, sound-absorbing cotton is installed on the inner side of the fixed shell, and a metal sleeve is fixedly connected to the outer side of the fixed shell, the noise reduction component comprises a first foamed aluminum cone shell, a first porous sound-absorbing material plate is fixedly connected to the inner side of the first foamed aluminum cone shell, a silicone column is fixedly connected to one side of the first foamed aluminum cone shell, a silicone spiral sleeve is fixedly connected to one side of the first foamed aluminum cone shell, a spring is fixedly connected to the inner side of the silicone spiral sleeve, a second foamed aluminum cone shell is fixedly connected to one side of the silicone column, a second porous sound-absorbing material plate is fixedly connected to the inner side of the second porous sound-absorbing material plate, the foreign matter blocking cover comprises a cone ring shell, a connecting support plate is fixedly connected to the outer side of the cone ring shell, a blocking plate is fixedly connected to the outer side of the connecting support plate, and an air passage is opened on the inner side of the blocking plate.

[0007] As a further optimization of the present invention, the inner side of the fixed shell is hollow, the rear end of the outer shell is hollow, the outer shell is arranged on the outer side of the fixed shell, and the outer shell of the outer shell is provided with a leather cover.

[0008] As further optimized content of the present invention, the front side of the sound-absorbing cotton is fitted with the rear end of the speaker, the rear end of the sound-absorbing cotton is fitted with the front end of the noise reduction component, the diameter of the sound-absorbing cotton is the same as the diameter of the speaker, the diameter of the speaker is smaller than the inner diameter of the fixed shell, and a space is set between the speaker and the noise reduction component.

[0009] As a further optimization of the present invention, the shape of the cone ring shell is a hollow cone, an air duct is provided between the rear end of the cone ring shell and the rear end of the blocking plate, the air duct is connected to the interior of the cone ring shell, and the number of the connecting support plates is several.

[0010] As a further optimization of the present invention, a groove is provided at the front end of the blocking plate, and the diameter of the front end of the blocking plate is larger than the diameter of the rear end of the cone ring shell.

[0011] As further optimized content of the present invention, wherein: the first foamed aluminum cone shell is shaped as a hollow cone, a threaded hole is provided on the inner side of the first foamed aluminum cone shell, the outer side of the first foamed aluminum cone shell is welded to the inner side of the fixed shell, the speaker is fixedly connected to the first foamed aluminum cone shell by bolts, the inner side of the first foamed aluminum cone shell is hollow, the number of the silicone columns is not less than two, the silicone spiral sleeve corresponds to the silicone column one by one, and the second foamed aluminum cone shell is composed of several hollow cones.

[0012] As further optimized content of the present invention, the middle end of the second foamed aluminum cone shell is on the same vertical line with the center of the first foamed aluminum cone shell, a plurality of through holes are opened on the inner side of the second foamed aluminum cone shell, the number of the second porous sound-absorbing material plates is not less than three, and the through holes inside the second foamed aluminum cone shell deviate from the through holes inside the first foamed aluminum cone shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by providing a fixed shell, a jacket, a noise reduction component, a speaker, a foreign body cover and a sound-absorbing cotton, the device can degrade the noise when subjected to external noise, thereby ensuring the sound quality transmitted from the speaker to the workers' hearing. At the same time, the device does not hinder the normal circulation of gas, reduces the stuffiness of the device and the workers' ears, and improves the wearing comfort of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the fixed housing structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the sound-absorbing cotton of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the noise reduction component of the utility model;

[0019] Figure 5 For this utility model Figure 4 A schematic diagram of the structure at A;

[0020] Figure 6 It is a schematic diagram of the structure of the impurity barrier cover of the utility model.

[0021] In the figure: 1. fixed shell; 2. outer sleeve; 3. noise reduction component; 31. first foamed aluminum cone shell; 32. first porous sound-absorbing material plate; 33. silicone column; 34. spring; 35. second foamed aluminum cone shell; 36. second porous sound-absorbing material plate; 37. silicone spiral sleeve; 4. speaker; 5. impurity barrier cover; 51. cone ring shell; 52. connecting support plate; 53. blocking plate; 54. air duct; 6. sound-absorbing cotton; 7. metal sleeve plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] See also Figure 1-6 , the utility model provides a technical solution:

[0025] A wireless headset with an acoustic noise reduction structure comprises a fixed shell 1 and a jacket 2, wherein the jacket 2 is installed on one side of the fixed shell 1, a noise reduction component 3 is fixedly connected to the inner side of the fixed shell 1, a speaker 4 is installed on one side of the noise reduction component 3, a foreign matter barrier cover 5 is fixedly connected to one side of the fixed shell 1, sound-absorbing cotton 6 is installed on the inner side of the fixed shell 1, a metal sleeve plate 7 is fixedly connected to the outer side of the fixed shell 1, the noise reduction component 3 comprises a first foamed aluminum cone shell 31, a first porous sound-absorbing material plate 32 is fixedly connected to the inner side of the first foamed aluminum cone shell 31, and the first foamed aluminum cone shell 3 A silicone column 33 is fixedly connected to one side of the first foamed aluminum cone shell 31, a silicone spiral sleeve 37 is fixedly connected to one side of the first foamed aluminum cone shell 31, a spring 34 is fixedly connected to the inner side of the silicone spiral sleeve 37, a second foamed aluminum cone shell 35 is fixedly connected to one side of the silicone column 33, a second porous sound absorbing material plate 36 is fixedly connected to the inner side of the second porous sound absorbing material plate 36, the impurity barrier cover 5 includes a cone ring shell 51, a connecting support plate 52 is fixedly connected to the outer side of the cone ring shell 51, a blocking plate 53 is fixedly connected to the outer side of the connecting support plate 52, and an air passage 54 is opened inside the blocking plate 53.

[0026] As a further implementation of the present invention, the inner side of the fixed shell 1 is hollow, the rear end of the outer shell 2 is hollow, the outer shell 2 is arranged outside the fixed shell 1, and the outer shell 2 is provided with a leather cover to form a seal between the ear and the outer shell 2, and the soft cloth inside the outer shell 2 does not hinder the gas circulation;

[0027] As a further implementation of this solution, the front side of the sound-absorbing cotton 6 is fitted with the rear end of the speaker 4, and the rear end of the sound-absorbing cotton 6 is fitted with the front end of the noise reduction component 3. The diameter of the sound-absorbing cotton 6 is the same as the diameter of the speaker 4, and the diameter of the speaker 4 is smaller than the inner diameter of the fixed shell 1. A space is provided between the speaker 4 and the noise reduction component 3, and the sound-absorbing cotton 6 plays a role in absorbing the speaker 4 and external sounds;

[0028] As a further implementation of the present invention, the cone ring housing 51 is in the shape of a hollow cone, and an air passage 54 is provided between the rear end of the cone ring housing 51 and the rear end of the blocking plate 53. The air passage 54 is connected to the inside of the cone ring housing 51, and a number of connecting support plates 52 are provided to facilitate air circulation and block impurities and sound.

[0029] As a further implementation of this solution, a groove is provided at the front end of the blocking plate 53, and the diameter of the front end of the blocking plate 53 is larger than the diameter of the rear end of the cone ring housing 51, so as to facilitate the formation of a through opening between the cone ring housing 51 and the blocking plate 53;

[0030] As a further implementation of the present scheme, the first foamed aluminum cone shell 31 is shaped as a hollow cone, a threaded hole is provided on the inner side of the first foamed aluminum cone shell 31, the outer side of the first foamed aluminum cone shell 31 is welded to the inner side of the fixed shell 1, the speaker 4 is fixedly connected to the first foamed aluminum cone shell 31 by bolts, the inner side of the first foamed aluminum cone shell 31 is hollow, the number of silicone columns 33 is not less than two, the silicone spiral sleeve 37 corresponds to the silicone column 33 one by one, and the second foamed aluminum cone shell 35 is composed of a plurality of hollow cones, which reduces the propagation of noise and reduces the vibration of the second foamed aluminum cone shell 35;

[0031] As a further implementation scheme of the present scheme, the middle end of the second foamed aluminum cone shell 35 is on the same vertical line as the center of the first foamed aluminum cone shell 31, a plurality of through holes are opened on the inner side of the second foamed aluminum cone shell 35, the number of the second porous sound-absorbing material plates 36 is not less than three, and the through holes inside the second foamed aluminum cone shell 35 deviate from the through holes inside the first foamed aluminum cone shell 31 to prevent noise from being directly transmitted to people's hearing.

[0032] Working process: When the device is in use and is affected by external noise, the noise enters the blocking plate 53 and the cone ring shell 51 along with the air from the air duct 54, and part of the noise contacts the second foamed aluminum cone shell 35 from the inside of the cone ring shell 51, and part of the sound passes through the second porous sound-absorbing material plate 36 from the inside of the second foamed aluminum cone shell 35. The second foamed aluminum cone shell 35 absorbs the sound, and according to the shape of the second foamed aluminum cone shell 35, the noise can be dispersed. The second foamed aluminum cone shell 35 and the second porous sound-absorbing material plate 36 have a preliminary effect of absorbing the noise. When the second foamed aluminum cone shell 35 contacts the sound in the air, a certain vibration will be generated. The spring 34 and the silicone spiral sleeve 37 play a direct buffering role to prevent the second foamed aluminum cone shell 35 from contacting the fixed shell 1 and the impurity barrier cover 5, thereby reducing the propagation of noise. The silicone spiral sleeve 37 is sleeved on the outside of the spring 34, and the silicone spiral sleeve 37 absorbs vibration and noise. The silicone column 33 belongs to silicone. The material reduces the propagation of noise and the vibration of the second foamed aluminum cone shell 35. The silicone column 33 also serves to limit the second foamed aluminum cone shell 35. When the remaining noise passes through the outer edge of the second foamed aluminum cone shell 35 and the inside of the second foamed aluminum cone shell 35, the noise enters the outer edge of the first foamed aluminum cone shell 31. According to the shape of the first foamed aluminum cone shell 31, the first foamed aluminum cone shell 31 can directly organize the propagation of noise. At the same time, the first porous sound-absorbing material plate 32 further reduces the noise of the first foamed aluminum cone shell 31, so that the noise entering the human hearing is negligible. The outer periphery of the jacket 2 can play a sealing role. At the same time, part of the sweat enters the fixed shell 1 from the jacket 2, enters the first foamed aluminum cone shell 31 from the outside of the speaker 4, passes through the first porous sound-absorbing material plate 32 from the inside of the first foamed aluminum cone shell 31 to the rear of the first foamed aluminum cone shell 31, and enters the inside of the air duct 54 from the fixed shell 1, thereby outflowing air, thereby improving the comfort of using the device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wireless headset with an acoustic noise reduction structure, comprising a fixed shell (1) and a jacket (2), characterized in that: A jacket (2) is installed on one side of the fixed shell (1), a noise reduction component (3) is fixedly connected to the inner side of the fixed shell (1), a speaker (4) is installed on one side of the noise reduction component (3), a foreign matter blocking cover (5) is fixedly connected to one side of the fixed shell (1), sound absorbing cotton (6) is installed on the inner side of the fixed shell (1), a metal sleeve (7) is fixedly connected to the outer side of the fixed shell (1), the noise reduction component (3) comprises a first foamed aluminum cone shell (31), a first porous sound absorbing material plate (32) is fixedly connected to the inner side of the first foamed aluminum cone shell (31), and a silicone column is fixedly connected to one side of the first foamed aluminum cone shell (31). (33), a silicone spiral sleeve (37) is fixedly connected to one side of the first foamed aluminum cone shell (31), a spring (34) is fixedly connected to the inner side of the silicone spiral sleeve (37), a second foamed aluminum cone shell (35) is fixedly connected to one side of the silicone column (33), a second porous sound-absorbing material plate (36) is fixedly connected to the inner side of the second foamed aluminum cone shell (35), and the impurity-blocking cover (5) comprises a cone ring shell (51), a connecting support plate (52) is fixedly connected to the outer side of the cone ring shell (51), a blocking plate (53) is fixedly connected to the outer side of the connecting support plate (52), and an air passage (54) is opened on the inner side of the blocking plate (53).

2. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: The inner side of the fixed shell (1) is hollow, the rear end of the outer shell (2) is hollow, the outer shell (2) is sleeved on the outer side of the fixed shell (1), and the outer periphery of the outer shell (2) is provided with a leather cover.

3. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: The front side of the sound-absorbing cotton (6) is fitted with the rear end of the loudspeaker (4), and the rear end of the sound-absorbing cotton (6) is fitted with the front end of the noise reduction component (3). The diameter of the sound-absorbing cotton (6) is the same as the diameter of the loudspeaker (4). The diameter of the loudspeaker (4) is smaller than the inner diameter of the fixed housing (1), and a space is provided between the loudspeaker (4) and the noise reduction component (3).

4. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: The cone ring shell (51) is in the shape of a hollow cone. An air passage (54) is provided between the rear end of the cone ring shell (51) and the rear end of the blocking plate (53). The air passage (54) is communicated with the interior of the cone ring shell (51). The number of the connecting support plates (52) is several.

5. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: A groove is formed at the front end of the blocking plate (53), and the diameter of the front end of the blocking plate (53) is greater than the diameter of the rear end of the cone ring housing (51).

6. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: The first foamed aluminum cone shell (31) is in the shape of a hollow cone, a threaded hole is provided on the inner side of the first foamed aluminum cone shell (31), the outer side of the first foamed aluminum cone shell (31) is welded to the inner side of the fixed outer shell (1), the speaker (4) is fixedly connected to the first foamed aluminum cone shell (31) by bolts, the inner side of the first foamed aluminum cone shell (31) is hollow, the number of the silicone columns (33) is not less than two, the silicone spiral sleeve (37) corresponds to the silicone column (33) one by one, and the second foamed aluminum cone shell (35) is composed of a plurality of hollow cones.

7. The wireless headset with acoustic noise reduction structure according to claim 1, characterized in that: The middle end of the second foamed aluminum cone shell (35) is located on the same vertical line as the center of the first foamed aluminum cone shell (31); a plurality of through holes are provided inside the second foamed aluminum cone shell (35); the number of the second porous sound absorbing material plates (36) is not less than three; and the through holes inside the second foamed aluminum cone shell (35) deviate from the through holes inside the first foamed aluminum cone shell (31).

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