A curved arm structure for Bluetooth earphones
By using an outer shell structure and plastic parts to protect the memory steel wire in the Bluetooth headset, the problems of elastic fatigue and loose connection of the memory steel wire are solved, improving wearing comfort and stability, adapting to different ear shapes, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-13
AI Technical Summary
In existing Bluetooth headsets, the memory wire may experience elastic fatigue after being bent, leading to reduced fit, loose connection, or even breakage, affecting wearing stability and comfort, and may also cause a foreign body sensation and ear fatigue.
It adopts an outer shell structure with plastic parts at both ends of the memory wire. The inner part of the outer shell does not have a memory wire and uses soft materials. The memory wire is protected by the plastic parts. The outer shell fits with the ear to reduce the area of use and contact of the memory wire and increase the degree of freedom.
It improves the wearing comfort of Bluetooth headphones, reduces the feeling of foreign objects and ear fatigue, extends the service life, adapts to different ear shapes, meets the needs of multiple groups of people, and reduces the overall weight and the feeling of foreign objects.
Smart Images
Figure CN223993731U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a curved arm structure, and more particularly to a curved arm structure for a Bluetooth headset. Background Technology
[0002] There are various types of open-ear Bluetooth headphones on the market, including ear-hook headphones. Ear-hook headphones incorporate memory wires into the curved arm. The memory wires make the fit more secure and prevent them from falling out, and they also adapt to different ear shapes. However, improper adjustment or unusual ear shapes may cause pressure on the ear, leading to fatigue and pain after prolonged wear. Some users may be sensitive to the presence of the memory wires; even if the wires are covered with silicone or other materials, they may still feel a foreign object in their ear, especially during head movements, where this sensation may become more pronounced.
[0003] Furthermore, after repeated bending, the memory wire will experience elastic fatigue, causing its memory function to gradually weaken and preventing it from properly returning to its original shape, affecting its fit to the ear and the stability of the fit. If the memory wire is subjected to excessive external force bending or twisting, it may break, especially at the joints or thinner parts of the wire. Once the memory wire breaks or the outer silicone layer is punctured, the headphone arm will not function properly, affecting the overall lifespan of the headphones. The connection points between the memory wire and other parts of the headphones may also loosen due to frequent use and bending. Utility Model Content
[0004] According to one aspect of the present invention, a curved arm structure for a Bluetooth headset is provided to solve the technical problems existing in the prior art.
[0005] According to one aspect of the present invention, a curved arm structure for a Bluetooth headset is provided, including an outer shell and a memory steel wire. Plastic parts are provided at both ends of the memory steel wire. Both the memory steel wire and the plastic parts are located inside the outer shell. The outer shell fits into the human ear. The length of the memory steel wire is less than the length of the outer shell.
[0006] In some implementations, one end of the outer shell can be connected to the ear hook and the other end can be connected to the earphone's acoustic cavity. At least part of the part of the outer shell connected to the earphone's acoustic cavity does not have a memory wire. The part of the outer shell without the memory wire has a higher degree of freedom, and users can freely adjust the position of the earphone's acoustic cavity as needed to meet the usage needs of different users.
[0007] In some implementations, the outer shell is made of silicone material.
[0008] In some embodiments, the plastic part has a through hole, into which the memory wire can be inserted without protruding.
[0009] In some embodiments, the plastic part has a slot, and the corresponding position of the outer sleeve has a protrusion that can be engaged in the slot.
[0010] In some embodiments, one end of the outer shell is provided with a plug portion that can be inserted into the sound cavity of the earphone, and the other end of the outer shell is provided with a plug slot that can be inserted into the plug slot.
[0011] In some implementations, the outer garment is bent as a whole and fits into the human ear.
[0012] The beneficial effects of this utility model are as follows: Since at least part of the end where the outer shell is connected to the earphone's acoustic cavity does not have a memory wire, the memory wire provided in part of the outer shell can ensure basic ear shape fit, while the part without the memory wire can be made of a softer or more elastic material, such as silicone. The part of the outer shell without the memory wire has a higher degree of freedom, and users can freely adjust the position of the earphone's acoustic cavity according to their needs to meet the usage needs of different people.
[0013] Because plastic parts are provided at both ends of the memory steel wire, the memory steel wire can be prevented from puncturing the outer casing and affecting the overall use of this utility model.
[0014] When this invention is worn, the outer shell with memory wire adapts to the general outline of the human ear, while the soft material of the other part of the outer shell without memory wire better conforms to the subtle curves and different parts of the ear, reducing local pressure and improving overall wearing comfort, especially for users with sensitive ears.
[0015] Compared to using a single memory wire, the outer shell of this invention uses only a portion of the memory wire, which effectively reduces the overall weight of the invention, making the Bluetooth headset lighter and less burdensome on the ears when worn. It is also less likely to cause fatigue during long-term wear, thus improving the durability of the headset.
[0016] Memory wire is usually quite stiff, and only a portion of the outer shell has memory wire. This reduces the contact area between the memory wire and the ear, minimizing the feeling of something in the ear and making the wearer feel more natural and comfortable. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the curved arm structure of a Bluetooth headset according to one embodiment of the present invention.
[0018] Figure 2 for Figure 1 An exploded view of the curved arm structure of the Bluetooth headset shown.
[0019] Figure 3 for Figure 1 The diagram shows the structure of the memory steel wire and plastic parts of the curved arm structure of the Bluetooth headset.
[0020] In the diagram, 1-outer body; 11-plug part; 12-plug groove; 2-memory steel wire; 3-plastic part; 31-slot; 32-through hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] Figures 1-3 The diagram schematically illustrates the curved arm structure of a Bluetooth headset according to one embodiment of the present invention.
[0024] like Figures 1-3 As shown, a curved arm structure for a Bluetooth headset includes an outer shell 1 and a memory steel wire 2.
[0025] Both ends of the memory wire 2 are provided with plastic parts 3. The plastic parts 3 can protect the two ends of the memory wire 2, prevent the two ends of the memory wire 2 from passing through the outer casing 1, and prevent the outer casing 1 from being damaged, thus affecting the overall use of this utility model. The memory wire 2 and the plastic parts 3 are both fixed inside the outer casing 1. The memory wire 2 and the plastic parts 3 are matched. The outer casing 1 is matched with the human ear. The length of the memory wire 2 is less than the length of the outer casing 1. Therefore, the memory wire 2 can be completely set inside the outer casing 1.
[0026] The outer casing 1 in this utility model serves the same function as the "bent arm (2)" in the "Structure of a Bluetooth Earphone" applied for by the applicant on March 24, 2025. Since the "Structure of a Bluetooth Earphone" applied for on March 24, 2025 does not provide separate protection for the "bent arm (2)," and the way the memory wire 2 inside the "bent arm (2)" is set is basically the same as the prior art, it is necessary to apply for this utility model in order to protect the structure of this application.
[0027] That is, one end of the outer shell 1 can be connected to the ear hook part, and the other end can be connected to the sound cavity part of the earphone. (The ear hook part here can refer to the rear part of the "Structure of a Bluetooth Earphone" applied for on March 24, 2025, and the sound cavity part is equivalent to the sound cavity part of the "Structure of a Bluetooth Earphone" applied for on March 24, 2025). Since the length of the memory wire 2 is less than the length of the outer shell 1, the specific structure of the memory wire 2 is as follows: At least part of the end of the outer shell 1 connected to the sound cavity part of the earphone is not provided with the memory wire 2. On the outer shell 1, the part without the memory wire can be made of a softer or more elastic material. The part of the outer shell 1 without the memory wire has a higher degree of freedom. Users can freely adjust the position of the sound cavity part of the earphone according to their needs to meet the usage needs of different people.
[0028] In this embodiment, the outer shell 1 is made of silicone material. The outer shell 1 made of silicone material has a softer texture. In other embodiments, the outer shell 1 may also be made of other soft materials.
[0029] In this embodiment, the plastic part 3 has a through hole 32, into which the memory steel wire 2 can be inserted without protruding. Therefore, the plastic part 3 can protect the memory steel wire 2 and prevent it from puncturing the outer casing 1 and affecting the overall use.
[0030] like Figure 2 and Figure 3 As shown, a slot 31 is integrally formed on the plastic part 3, and a protrusion is integrally formed on the corresponding position of the outer sleeve 1. The protrusion can be locked in the slot 31. By setting the slot 31 and the protrusion, the plastic part 3 and the outer sleeve 1 can be formed as a whole, and the plastic part 3 will not fall off the outer sleeve 1.
[0031] In this embodiment, as Figure 1 and Figure 2 As shown, the lower end of the outer shell 1 can be integrally formed with a plug part 11, which can be inserted into the sound cavity of the earphone. The upper end of the outer shell 1 can be integrally formed with a plug groove 12, and the ear hook part can be inserted into the plug groove 12.
[0032] Since at least part of the end of the outer shell 1 connected to the earphone's acoustic cavity does not have a memory wire, the memory wire in part of the outer shell 1 can ensure basic ear shape fit. The part without the memory wire can be made of a softer or more elastic material, such as silicone. The part of the outer shell 1 without the memory wire has a higher degree of freedom, and users can freely adjust the position of the earphone's acoustic cavity according to their needs to meet the usage needs of different people.
[0033] Because plastic parts 31 are provided at both ends of the memory steel wire, the memory steel wire can be prevented from piercing the outer shell 1 and affecting the overall use of this utility model.
[0034] When this invention is worn, the outer shell 1 with memory wire can adapt to the general outline of the human ear, while the soft material of the other part of the outer shell 1 without memory wire can better fit the subtle curves and different parts of the ear, reduce local pressure, and improve overall wearing comfort, especially for users with sensitive ears.
[0035] Compared to a single memory wire, the outer shell of this invention uses only a portion of the memory wire, which effectively reduces the overall weight of the invention, making the Bluetooth headset lighter and less burdensome on the ears when worn. It is also less likely to cause fatigue during long-term wear, thus improving the durability of the headset.
[0036] Memory wire is usually quite stiff, and only a portion of the outer shell 1 has memory wire. This reduces the contact area between the memory wire and the ear, minimizing the feeling of foreign objects when wearing it, and making the user feel more natural and comfortable.
[0037] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.
Claims
1. A bending arm structure of a Bluetooth earphone, characterized in that: The application relates to a memory steel wire earphone, which comprises an outer sleeve (1) and a memory steel wire (2), the two ends of the memory steel wire (2) are provided with plastic parts (3), the memory steel wire (2) and the plastic parts (3) are arranged in the outer sleeve (1), the outer sleeve (1) is matched with human ears, and the length of the memory steel wire (2) is smaller than the length of the outer sleeve (1).
2. The structure of the bending arm of the Bluetooth earphone according to claim 1, characterized in that: One end of the outer sleeve (1) can be connected with an ear hanging part, and the other end can be connected with an acoustic cavity part of an earphone, at least part of the position of the end of the outer sleeve (1) connected with the acoustic cavity part of the earphone is not provided with the memory steel wire (2).
3. The structure of the bending arm of the Bluetooth earphone according to claim 2, characterized in that: The outer sleeve (1) is made of silica gel material.
4. The structure of the bending arm of the Bluetooth earphone according to claim 3, characterized in that: The plastic part (3) is provided with a through hole (32), the memory steel wire (2) can be inserted into the through hole (32), and the memory steel wire (2) cannot extend out of the through hole (32).
5. The structure of the bending arm of the Bluetooth earphone according to claim 4, characterized in that: The plastic part (3) is provided with a clamping groove (31), and a convex part is arranged at the corresponding position of the outer sleeve (1), the convex part can be clamped in the clamping groove (31).
6. The structure of the bending arm of the Bluetooth earphone according to claim 5, characterized in that: One end of the outer sleeve (1) is provided with a plug-in part (11), the plug-in part (11) can be inserted into the acoustic cavity part of the earphone, the other end of the outer sleeve (1) is provided with a plug-in groove (12), and the ear hanging part can be inserted into the plug-in groove (12).
7. The elbow structure of the Bluetooth earphone according to any one of claims 1-6, characterized in that: The outer sleeve (1) is in a whole bending shape, and the outer sleeve (1) is matched with human ears.