Detachable in-ear Bluetooth earphone with easy-to-clean filter screen
By using a snap-fit structure and an oleophobic and hydrophobic coating, the problem of easy clogging and inconvenient cleaning of in-ear Bluetooth headphone filters is solved, enabling convenient disassembly and cleaning of the filters, thus improving the user experience and sound quality of the headphones.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KAICHUANG FUTURE TECHNOLOGY CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-24
AI Technical Summary
The filters of existing in-ear Bluetooth headphones are prone to clogging and are inconvenient to clean, affecting sound quality and wearing comfort.
The filter cover and filter body are installed using a snap-fit method, combined with an oleophobic and hydrophobic coating, to achieve convenient disassembly and cleaning. A stable connection is ensured by a limit hook, spring and guide groove structure.
It enables convenient disassembly and cleaning of the filter, reduces the frequency of cleaning, and improves the user experience and sound quality.
Smart Images

Figure CN224164883U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of in-ear Bluetooth headset technology, specifically to an in-ear Bluetooth headset with a detachable and easy-to-clean filter. Background Technology
[0002] With the popularization of Bluetooth technology, in-ear Bluetooth headphones are becoming increasingly popular among consumers due to their portability and wireless connectivity.
[0003] An existing patent (publication number: CN217335867U) discloses an in-ear Bluetooth headset, comprising: an in-ear Bluetooth headset body; the in-ear Bluetooth headset body includes an earpiece shell, and a flexible body is provided at a position in the earpiece shell that fits into the ear canal. The hardness of the flexible body is lower than that of the earpiece shell, and the interior of the flexible body is configured as a cavity structure for accommodating a sensor. This utility model provides a comfortable in-ear Bluetooth headset with a pressure sensor.
[0004] In the aforementioned comparative documents, the headphone filter of the device is easily clogged by earwax, dust, etc. after a long period of time, which affects the sound quality and wearing comfort. Moreover, most headphone filters are fixed with glue, which is inconvenient to clean. In order to solve the above problems, a detachable and easy-to-clean in-ear Bluetooth headphone with a filter is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides an in-ear Bluetooth headset with a detachable and easy-to-clean filter, solving the problems of easy clogging and inconvenient cleaning of headphone filters in existing technologies.
[0006] To achieve the above objectives, this application provides the following technical solution: a detachable and easy-to-clean filter in-ear Bluetooth earphone, comprising an in-ear Bluetooth earphone body, an output end of the in-ear Bluetooth earphone body fixedly connected to a sound outlet channel, an output end of the sound outlet channel provided with a filter assembly, the filter assembly comprising two preset cavities formed on the outer surface of the sound outlet channel, and two first guide grooves formed on the inner walls of the two preset cavities, two L-shaped pressure blocks provided inside the preset cavities, two first guide blocks fixedly connected to the outer surface of each L-shaped pressure block, four first guide blocks slidably sleeved on the inner walls of the four first guide grooves, a limit hook hinged to the inner wall of each preset cavity, a first spring and a second spring fixedly connected to the inner bottom wall of each preset cavity, a filter cover provided outside the sound outlet channel, a filter body installed on one side of the filter cover, two inserts fixedly connected to the outer surface of the filter cover, a limit groove formed on the outer surface of each insert, and the limit hooks adapted to the limit grooves.
[0007] The above solution uses a snap-fit method to install the filter cover and filter body onto the sound outlet channel, achieving convenient assembly and disassembly. This ease of assembly and disassembly facilitates easy cleaning of the filter body. Combined with the oleophobic and hydrophobic coating on the filter body surface, this further reduces the frequency of cleaning, making it more practical. After disassembling the filter cover and filter body, simply press down on the two L-shaped blocks to pry the two limiting hooks out of the two limiting slots, releasing the limiting effect on the two inserts. This allows the filter cover to be directly removed from the sound outlet channel, and then the filter body can be pulled out from the filter cover to complete the disassembly. This facilitates subsequent cleaning of the filter body, and no other tools are required for assembly and disassembly of the filter cover and filter body, making it even more practical.
[0008] Furthermore, the top end of the first spring is fixedly connected to the bottom end of the limiting hook, and the second spring is located below the limiting hook.
[0009] The above scheme defines the positional relationship between the limiting hook and the first spring, which optimizes the process of the limiting hook limiting other components.
[0010] Furthermore, an annular groove is provided on one side of the filter cover, and an annular rubber pad is fixedly connected to the outer surface of the filter body. The filter body is installed on one side of the filter cover through the annular groove and the annular rubber pad.
[0011] The above solution, with its annular groove and annular rubber pad, allows for quick assembly of the filter body and filter cover, and also facilitates subsequent cleaning of the filter body.
[0012] Furthermore, a second guide block is fixedly connected to the outer surface of each of the inserts, and a second guide groove is provided on the outside of each of the preset cavities. The second guide block is slidably sleeved in the inner wall of the second guide groove.
[0013] The above solution allows the insert block to be inserted into the preset cavity more accurately and stably for snapping, thanks to the second guide block and the second guide groove, which facilitates the quick assembly and disassembly of the filter cover.
[0014] Furthermore, a pressing pad is fixedly connected to the top of each L-shaped pressure block.
[0015] The above solution increases the friction at the top of the L-shaped pressure block by using a pressing pad, making it easier to press the L-shaped pressure block.
[0016] Furthermore, the outer surface of the filter body is coated with an oleophobic and hydrophobic coating, and a sealing ring is fixedly connected to the inner wall of one end of the sound outlet channel.
[0017] The above solution effectively prevents earwax, dust, and other contaminants from adhering to the filter body through the oleophobic and hydrophobic coating, thereby reducing the frequency of cleaning. The sealing ring reduces the chance of sound leakage from the connection point, thus optimizing the performance.
[0018] Furthermore, an ear sleeve is provided on the outside of the sound outlet channel, and a positioning ring is fixedly connected to the inner wall of the ear sleeve.
[0019] The above solution improves the comfort of users wearing in-ear Bluetooth headphones by using ear tips, thus optimizing the actual user experience.
[0020] Furthermore, a positioning groove is provided on the outer surface of the sound outlet channel, and the positioning ring is adapted to the positioning groove.
[0021] The above solution allows for easy attachment of the ear tips to the sound outlet channel via the positioning ring and positioning groove, making it convenient to use.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This is a removable and easy-to-clean in-ear Bluetooth earphone with a filter cover. The filter cover and filter body are attached to the sound outlet channel via a snap-fit mechanism, allowing for convenient assembly and disassembly. This ease of assembly and disassembly facilitates easy cleaning of the filter body. The oleophobic and hydrophobic coating on the filter body further reduces the frequency of cleaning, making it more practical. After disassembling the filter cover and filter body, simply press down on the two L-shaped blocks to pry open the two limiting hooks from the two limiting slots, releasing the limiting effect on the two inserts. The filter cover can then be removed directly from the sound outlet channel, and the filter body can be pulled out from the filter cover to complete the disassembly. This facilitates subsequent cleaning of the filter body, and no other tools are required for assembly and disassembly of the filter cover and filter body, making it even more practical. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this application;
[0025] Figure 2 This is a schematic diagram of the first exploded structure of the present application;
[0026] Figure 3 This is a partial cross-sectional planar structural diagram of the structure of this application;
[0027] Figure 4 This is a schematic diagram of the second exploded structure of the present application;
[0028] Figure 5 This is a partial cross-sectional top view of the structure of this application.
[0029] In the picture:
[0030] 1. In-ear Bluetooth earphone body; 2. Sound outlet channel; 3. Filter assembly; 301. Preset cavity; 302. First guide groove; 303. L-shaped pressure block; 304. First guide block; 305. Limiting hook; 306. First spring; 307. Second spring; 308. Filter cover; 309. Filter body; 310. Annular groove; 311. Annular rubber pad; 312. Insert block; 313. Limiting groove; 314. Second guide block; 315. Second guide groove; 316. Pressing pad; 317. Oleophobic and hydrophobic coating; 318. Sealing ring; 4. Ear tip; 5. Positioning ring; 6. Positioning groove. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Please see Figure 3 , Figure 4 and Figure 5 This embodiment of a detachable and easy-to-clean filter in-ear Bluetooth earphone includes an in-ear Bluetooth earphone body 1. The output end of the in-ear Bluetooth earphone body 1 is fixedly connected to a sound outlet channel 2. The output end of the sound outlet channel 2 is provided with a filter assembly 3. An ear tip 4 is provided on the outside of the sound outlet channel 2. A positioning ring 5 is fixedly connected to the inner wall of the ear tip 4. The ear tip 4 can improve the comfort of the user when wearing the in-ear Bluetooth earphone body 1 and optimize the actual user experience. A positioning groove 6 is provided on the outer surface of the sound outlet channel 2. The positioning ring 5 is adapted to the positioning groove 6. The positioning ring 5 and the positioning groove 6 can easily snap the ear tip 4 onto the sound outlet channel 2 for convenient use.
[0033] Please see Figure 3 , Figure 4 and Figure 5The filter assembly 3 includes two preset cavities 301 formed on the outer surface of the sound outlet channel 2, and two first guide grooves 302 formed on the inner walls of the two preset cavities 301. Two L-shaped pressing blocks 303 are provided inside the preset cavities 301. Two first guide blocks 304 are fixedly connected to the outer surface of each L-shaped pressing block 303. The four first guide blocks 304 are slidably fitted onto the inner walls of the four first guide grooves 302. The first guide blocks 304 and the first guide grooves 302 can limit the movement trajectory of the L-shaped pressing blocks 303. A limit hook 305 is hinged to the inner wall of each preset cavity 301. The limit hook 305 can be used to... The guide groove 302 rotates at a certain angle to facilitate the subsequent limiting of other components by the limiting hook 305. The inner bottom wall of each preset cavity 301 is fixedly connected with a first spring 306 and a second spring 307. The first spring 306 is initially in a compressed state. The top end of the first spring 306 is fixedly connected to the bottom end of the limiting hook 305. The second spring 307 is located below the limiting hook 305. In this way, the limiting hook 305 can be clamped between the L-shaped pressure block 303 and the first spring 306, which limits the positional relationship between the limiting hook 305 and the first spring 306 and optimizes the process of limiting other components by the limiting hook 305.
[0034] Please see Figure 3 , Figure 4 and Figure 5 The sound outlet channel 2 is provided with a filter cover 308. A filter body 309 is installed on one side of the filter cover 308. An annular groove 310 is opened on one side of the filter cover 308. An annular rubber pad 311 is fixedly connected to the outer surface of the filter body 309. The filter body 309 is installed on one side of the filter cover 308 through the annular groove 310 and the annular rubber pad 311. The annular groove 310 and the annular rubber pad 311 enable the filter body 309 to be quickly assembled with the filter cover 308, and also facilitate the subsequent cleaning of the filter body 309. Two inserts 312 are fixedly connected to the outer surface of the filter cover 308. Each insert 312 has a limit groove 313 on its outer surface. The limit hook 305 is adapted to the limit groove 313.
[0035] Please see Figure 3 , Figure 4 and Figure 5Each insert 312 has a second guide block 314 fixedly connected to its outer surface, and each preset cavity 301 has a second guide groove 315 on its outer surface. The second guide block 314 is slidably fitted into the inner wall of the second guide groove 315. The second guide block 314 and the second guide groove 315 enable the insert 312 to be inserted into the preset cavity 301 more accurately and stably for snapping, which is beneficial for the quick assembly and disassembly of the filter cover 308. Each L-shaped pressure block 303 has a pressing pad 316 fixedly connected to its top. The pressing pad 316 increases the friction at the top of the L-shaped pressure block 303, making it easier to press the L-shaped pressure block 303. The outer surface of the filter body 309 is coated with an oleophobic and hydrophobic coating 317. A sealing ring 318 is fixedly connected to the inner wall of one end of the sound outlet channel 2. The oleophobic and hydrophobic coating 317 effectively prevents earwax, dust and other dirt from adhering to the filter body 309, thereby reducing the frequency of cleaning. The sealing ring 318 reduces the chance of sound leakage from the connection, thereby optimizing the performance.
[0036] In this embodiment, a detachable and easy-to-clean filter in-ear Bluetooth earphone uses a snap-fit method to install the filter cover 308 and filter body 309 onto the sound outlet channel 2, achieving convenient disassembly and assembly. This ease of disassembly and assembly facilitates easy cleaning of the filter body 309. Combined with the oleophobic and hydrophobic coating 317 applied to the surface of the filter body 309, the frequency of cleaning is further reduced, making it more practical. After disassembling the filter cover 308 and filter body 309, only the... Pressing down on the two L-shaped blocks 303 will cause the two limiting hooks 305 to pry out from the two limiting grooves 313, releasing the limiting effect on the two inserts 312. This allows the filter cover 308 to be removed directly from the sound outlet channel 2. Then, the filter body 309 can be pulled out from the filter cover 308 to complete the disassembly of the filter body 309. This facilitates the subsequent cleaning of the filter body 309. Furthermore, no other tools are required for the disassembly and assembly of the filter cover 308 and the filter body 309, making it more practical.
[0037] It should be noted that, initially, the first spring 306 is compressed, and it exerts an upward force on the L-shaped pressure block 303. However, due to the first guide groove 302 and the installed first guide block 304, the L-shaped pressure block 303 continuously exerts a downward force on the first spring 306. Furthermore, the top of the L-shaped pressure block 303 is at the same height as the top of the sound outlet channel 2, and the top of the L-shaped pressure block 303 cannot exceed the top of the sound outlet channel 2. This allows the first spring 306 to exert an upward force on the L-shaped pressure block 303. The elastic force generated by the compression of a spring 306 causes the limiting hook 305 to engage in the limiting groove 313, thereby limiting the insertion block 312. When engaging, the principle is that the first spring 306 applies an upward force to the limiting hook 305, and the second spring 307 also applies an upward force to the limiting hook 305. The limiting hook 305 is hinged to the inside of the preset cavity 301 by a pin, so that the insertion block 312 can be limited inside the preset cavity 301 by the limiting hook 305.
[0038] The working principle of the above embodiment is as follows: After the device has been used for a period of time, the ear tips 4 can be pulled out from the outside of the sound outlet channel 2. Then, press the two pressing pads 316 to move the two L-shaped pressing blocks 303 downward. When the L-shaped pressing blocks 303 move downward, they will press the corresponding limiting hooks 305, thereby compressing the corresponding first spring 306. At the same time, the other end of the limiting hooks 305 will pry out from the corresponding limiting grooves 313, thereby releasing the limiting work on the insert block 312. In this way, the filter cover 308 and the filter body 309 can be removed from the sound outlet channel 2. Then, the filter body 309 can be pulled out from one side of the filter cover 308 to thoroughly clean the filter body 309. After cleaning the filter body 309, it can be removed through the annular groove. 310 and the annular rubber pad 311 insert the filter body 309 into one side of the filter cover 308. Then, the two insert blocks 312 are inserted into the two preset cavities 301 respectively. During insertion, the second guide block 314 needs to be aligned with the second guide groove 315. During the insertion process, the insert block 312 will first contact the top of the limiting hook 305. Then, the insert block 312 continues to be inserted downwards, causing the top of the limiting hook 305 to lift up. At the same time, the other end of the limiting hook 305 will squeeze the corresponding first spring 306. Then, the insert block 312 will squeeze the second spring 307 downwards. At the same time, the limiting hook 305 will align with the limiting groove 313. In this way, the limiting hook 305 will be reset by the elastic force generated by the deformation of the first spring 306, so that the top of the limiting hook 305 can be locked into the limiting groove 313, and so on. Figure 5 As shown, this achieves the limiting effect of the insert block 312, which allows the filter cover 308 and the filter body 309 to be snapped onto the sound outlet channel 2. At the same time, the filter body 309 is clamped between the filter cover 308 and the sound outlet channel 2, ensuring the stability of the filter body 309 and making it more practical.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A removable and easy-to-clean filter in-ear Bluetooth earphone, comprising an in-ear Bluetooth earphone body (1), characterized in that: The output end of the in-ear Bluetooth earphone body (1) is fixedly connected to a sound outlet channel (2). The output end of the sound outlet channel (2) is provided with a filter assembly (3). The filter assembly (3) includes two preset cavities (301) opened on the outer surface of the sound outlet channel (2) and two first guide grooves (302) opened on the inner wall of the two preset cavities (301). The interior of the preset cavity (301) is provided with two L-shaped pressure blocks (303). The outer surface of each L-shaped pressure block (303) is fixedly connected with two first guide blocks (304). The four first guide blocks (304) are respectively slidably sleeved on the four first guide blocks. The inner wall of the guide groove (302) and the inner wall of each preset cavity (301) are hinged with a limit hook (305). The inner bottom wall of each preset cavity (301) is fixedly connected with a first spring (306) and a second spring (307). The outside of the sound outlet channel (2) is provided with a filter cover (308). A filter body (309) is installed on one side of the filter cover (308). Two inserts (312) are fixedly connected to the outer surface of the filter cover (308). A limit groove (313) is opened on the outer surface of each insert (312). The limit hook (305) is adapted to the limit groove (313).
2. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: The top end of the first spring (306) is fixedly connected to the bottom end of the limiting hook (305), and the second spring (307) is located below the limiting hook (305).
3. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: The filter cover (308) has an annular groove (310) on one side, and an annular rubber pad (311) is fixedly connected to the outer surface of the filter body (309). The filter body (309) is installed on one side of the filter cover (308) through the annular groove (310) and the annular rubber pad (311).
4. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: Each of the inserts (312) has a second guide block (314) fixedly connected to its outer surface, and each of the preset cavities (301) has a second guide groove (315) on its outer surface. The second guide block (314) is slidably sleeved in the inner wall of the second guide groove (315).
5. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: Each of the L-shaped pressure blocks (303) has a pressing pad (316) fixedly connected to its top end.
6. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: The outer surface of the filter body (309) is coated with an oleophobic and hydrophobic coating (317), and a sealing ring (318) is fixedly connected to the inner wall of one end of the sound outlet channel (2).
7. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 1, characterized in that: The outside of the sound outlet channel (2) is provided with an ear sleeve (4), and the inner wall of the ear sleeve (4) is fixedly connected with a positioning ring (5).
8. The in-ear Bluetooth earphone with a detachable and easy-to-clean filter according to claim 7, characterized in that: The outer surface of the sound outlet channel (2) is provided with a positioning groove (6), and the positioning ring (5) is adapted to the positioning groove (6).
Citation Information
Patent Citations
In-ear Bluetooth earphone
CN217335867U