Headphone structure and headphone with built-in high-frequency filtering

Abstract

The present application relates to the technical field of electroacoustic products, and in particular to an earphone structure and earphone with built-in high-frequency filtering, comprising a shell, an inner cavity of the shell is provided with a speaker unit, the speaker unit divides the inner cavity of the shell into a front cavity and a rear cavity, the rear cavity is a sealed space, and a filter cavity connected to the rear cavity is provided on the periphery of the speaker unit. The present application provides an earphone structure and earphone with built-in high-frequency filtering, wherein the speaker unit is a sound-generating unit, and the sound waves generated are transmitted after forming a low-frequency resonance in the rear cavity. In this process, the high-frequency sound waves are filtered in the filter cavity, and while ensuring the waterproof performance of the earphone itself, the high-frequency sound waves are filtered out by the filter cavity, thereby ensuring the three-band balance of the earphone.

Description

[Technical field]

[0001] The present application relates to the technical field of electroacoustic products, and in particular to an earphone structure and earphone with built-in high-frequency filtering. [Background technology]

[0002] Most waterproof headphones on the market focus on meeting waterproof requirements at the expense of the sound quality of the headphones. The characteristics of waterproof headphones (especially high-grade waterproof TWS headphones) are: water is absolutely not allowed to enter the back cavity of the headphones, and water can enter the front cavity, but it is stipulated that the headphones will perform normally after drying for a certain period of time without any mechanical operation. In this way, waterproof headphones are greatly restricted in acoustic design. Usually, when designing the acoustics of headphones, a certain damping design is added to the front cavity to ensure the balance of the three frequencies, so that the sound designed sounds more comfortable. In order to meet the waterproof design requirements, waterproof headphones cannot have any damping in the front cavity of the headphones, so that water can enter and exit the front cavity freely without damaging the speaker diaphragm of the headphones. How to ensure the balance of the three frequencies of the headphones while meeting the waterproof requirements is a problem that needs to be solved at present. [Summary of the invention]

[0003] The purpose of the present application is to provide an earphone structure and earphone with built-in high-frequency filtering, wherein the speaker unit is a sound-generating unit, and the sound waves generated are transmitted out after forming a low-frequency resonance in the rear cavity. In this process, the high-frequency sound waves are filtered in the filter cavity. While ensuring the waterproof performance of the earphone itself, the high-frequency sound waves are filtered out by the filter cavity, thereby ensuring the three-frequency balance of the earphone.

[0004] This application is implemented through the following technical solutions:

[0005] An earphone structure with built-in high-frequency filtering comprises a shell, an inner cavity of the shell is provided with a speaker unit, the speaker unit divides the inner cavity of the shell into a front cavity and a rear cavity, the rear cavity is a sealed space, and a filter cavity connected to the rear cavity is provided on the peripheral side of the speaker unit.

[0006] As described above, in the earphone structure with built-in high-frequency filtering, the installation cavity for installing the speaker unit is between the front cavity and the rear cavity, and a filter groove is opened on the side wall of the installation cavity. The filter groove and the side surface of the speaker unit are surrounded to form the filter cavity.

[0007] In the earphone structure with built-in high-frequency filtering as described above, the cross-section of the filtering groove is U-shaped.

[0008] As described above, in the earphone structure with built-in high-frequency filtering, the radial dimension from the rear cavity to the mounting cavity gradually decreases.

[0009] In the earphone structure with built-in high-frequency filtering as described above, the width of the filtering groove is 1 / 12 to 1 / 10 of the circumference of the cross section of the installation cavity.

[0010] The present application also provides an earphone, including an earphone silicone sleeve and the earphone structure with built-in high-frequency filtering as described above, wherein a mounting post is provided at the front end of the outer side of the shell, and the earphone silicone sleeve is detachably mounted on the mounting post.

[0011] Compared with the prior art, this application has the following advantages:

[0012] In the earphone structure with built-in high-frequency filtering, the speaker unit is the sound-emitting unit, and the sound waves are transmitted out after forming low-frequency resonance in the rear cavity. In this process, the high-frequency sound waves are filtered in the filter cavity. While ensuring the waterproof performance of the earphone itself, the high-frequency sound waves are filtered out by the filter cavity, thereby ensuring the three-frequency balance of the earphone and meeting the dual needs of consumers for waterproofness and sound quality. Consumers can wear the earphones while swimming and enjoy their favorite beautiful music alone.

Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present application.

[0015] Figure 2 for Figure 1 Cross-sectional view in direction B.

[0016] Figure 3 for Figure 2 Magnified image of .

[0017] Figure 4 It is a schematic diagram of the decomposition structure of an embodiment of the present application.

[0018] Figure 5 The figure is a relationship diagram of the sound wave curves of the earphone before and after filtering by the earphone structure with built-in high-frequency filtering, wherein curve a is before filtering and curve b is after filtering. [Specific implementation method]

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] like Figures 1 to 5As shown, an embodiment of the present application proposes an earphone structure with built-in high-frequency filtering, including a shell 10, an inner cavity of the shell 10 is provided with a speaker unit 1, the speaker unit 1 divides the inner cavity of the shell 10 into a front cavity 2 and a rear cavity 3, the rear cavity 3 is a sealed space, and a filter cavity 4 connected to the rear cavity 3 is provided on the peripheral side of the speaker unit 1.

[0021] In the earphone structure with built-in high-frequency filtering, the speaker unit 1 is the sound-generating unit. The sound waves are transmitted after forming low-frequency resonance in the rear cavity 3. In this process, the high-frequency sound waves are filtered in the filter cavity 4. While ensuring the waterproof performance of the earphone itself, the high-frequency sound waves are filtered out by the filter cavity, ensuring the three-frequency balance of the earphone, and meeting the dual needs of consumers for waterproofness and sound quality. Consumers can wear the earphones while swimming and enjoy their favorite beautiful music alone. Figure 5 As shown, the sound waves of the headphones after high-frequency filtering are smoother and more comfortable to listen to.

[0022] Furthermore, between the front cavity 2 and the rear cavity 3 is an installation cavity 5 for installing the speaker unit 1, and a filter groove is provided on the side wall of the installation cavity 5, and the filter groove and the side of the speaker unit 1 are surrounded to form the filter cavity 4. Specifically, as one implementation but not limitation, the cross section of the filter groove is U-shaped.

[0023] In order to ensure better acoustic performance, especially to enhance the low-frequency dive, the rear cavity is generally larger than the front cavity. Accordingly, in this embodiment, the radial dimension from the rear cavity 3 to the installation cavity 5 gradually decreases.

[0024] In order to ensure the stability of the installation of the speaker unit 1 and the effectiveness of high-frequency filtering, the width of the filtering groove is 1 / 12 to 1 / 10 of the circumference of the cross section of the installation cavity 5 .

[0025] This embodiment also provides an earphone, including an earphone silicone sleeve and the earphone structure with built-in high-frequency filtering as described above, and a mounting post 101 is provided at the front end of the outer side of the shell 10, and the earphone silicone sleeve is detachably mounted on the mounting post 101.

[0026] In summary, this application has but is not limited to the following beneficial effects:

[0027] In the earphone structure with built-in high-frequency filtering, the speaker unit 1 is the sound-emitting unit, and the sound waves are transmitted after forming low-frequency resonance in the rear cavity 3. In this process, the high-frequency sound waves are filtered in the filter cavity 4. While ensuring the waterproof performance of the earphone itself, the high-frequency sound waves are filtered out by the filter cavity, thereby ensuring the three-frequency balance of the earphone and meeting the dual needs of consumers for waterproofness and sound quality. Consumers can wear the earphones while swimming and enjoy their favorite beautiful music alone.

[0028] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of this application is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or some technical deductions or replacements made based on the concept of this application should be considered as the protection scope of this application.

Claims

1. An earphone structure with built-in high-frequency filtering, comprising a housing (10), wherein an inner cavity of the housing (10) is provided with a speaker unit (1), wherein the speaker unit (1) divides the inner cavity of the housing (10) into a front cavity (2) and a rear cavity (3), wherein the rear cavity (3) is a sealed space, and wherein: A filter cavity (4) connected to the rear cavity (3) is provided on the peripheral side of the speaker unit (1); Between the front cavity (2) and the rear cavity (3) is an installation cavity (5) for installing the speaker unit (1), a filter groove is provided on the side wall of the installation cavity (5), and the filter groove and the side surface of the speaker unit (1) are surrounded to form the filter cavity (4); The cross section of the filter slot is U-shaped; The radial dimension from the rear cavity (3) to the installation cavity (5) gradually decreases; The width of the filter slot is 1 / 12 to 1 / 10 of the circumference of the cross section of the installation cavity (5).

2. A headset, characterized in that: It comprises an earphone silicone sleeve and an earphone structure with built-in high-frequency filtering as claimed in claim 1, wherein a mounting post (101) is provided at the front end of the outer side of the shell (10), and the earphone silicone sleeve is detachably mounted on the mounting post (101).

Images