Headphone Structure

Abstract

This utility model discloses an earphone structure, relating to the technical field of earphone products. The earphone structure includes a sound-producing element, a sound outlet, and pressure relief holes. At least two pressure relief holes are provided, a design that reduces the probability of the pressure relief hole being completely blocked. Even if one is blocked, the other can still maintain the balance of internal and external air pressure, ensuring good internal and external air pressure balance under different usage conditions, reducing discomfort during wear, and improving user comfort. At least two pressure relief holes are located on the side of the sound-producing element away from the ear canal (i.e., on the inner side of the earphone). When the user wears this earphone structure, the pressure relief holes are positioned away from the ear canal, further reducing the probability of the pressure relief holes being blocked. Placing the pressure relief holes on the inner side helps improve the appearance integrity of the earphone, making the outer surface of the earphone more complete and enhancing its aesthetics. Simultaneously, the design of two pressure relief holes can form an effective sound wave cancellation mechanism, reducing sound leakage and protecting user privacy.

Description

Technical Field

[0001] This utility model relates to the field of headphone product technology, and in particular to a headphone structure. Background Technology

[0002] In existing headphone designs, pressure relief vents are typically placed in the rear cavity of the headphone to optimize sound quality and improve wearing comfort. The main function of these vents is to balance air pressure, reduce discomfort during wear, and improve sound quality, especially low-frequency response. Currently, headphone rear cavities usually only have one pressure relief vent. This single-vent design means that the vent loses its pressure relief function when it is accidentally blocked by hair, earlobes, or other objects. In addition, the single-vent design cannot form an effective sound wave cancellation mechanism, resulting in a more serious sound leakage problem. This not only affects the user's privacy but may also disturb the surrounding environment. Utility Model Content

[0003] The main purpose of this invention is to propose a headphone structure that aims to improve the current headphone structure where the pressure relief hole is easily blocked and the sound leakage prevention effect is poor.

[0004] To achieve the above objectives, this utility model proposes an earphone structure, comprising:

[0005] A sound-emitting element for emitting sound, and the sound-emitting element is configured for placement in a user's ear canal;

[0006] A sound outlet, disposed on the sound-emitting component, is used to transmit the sound emitted by the sound-emitting component to the user's ear canal; and

[0007] A pressure relief hole is provided on the sound-generating component. The pressure relief hole is configured to balance the air pressure inside and outside the sound-generating component, and at least two pressure relief holes are provided. At least two pressure relief holes are provided on the side of the sound-generating component away from the ear canal.

[0008] In one embodiment, at least two of the pressure relief holes are arranged adjacent to each other to cancel out the sound waves at at least two of the pressure relief holes.

[0009] In one embodiment, in the arrangement direction of the pressure relief holes, at least two of the pressure relief holes have a first end that is close to each other and a second end that is far from each other;

[0010] The distance between the two first ends is 0.6mm-2mm.

[0011] In one embodiment, along the length of the pressure relief hole, one end of the pressure relief hole forms the first end and the other end forms the second end;

[0012] The length of the pressure relief hole is 2.4 mm, and the width of the pressure relief hole is 0.75 mm.

[0013] In one embodiment, the headphone structure further includes a first dustproof component disposed within the sound-producing component, which is used to block at least two of the pressure relief holes;

[0014] Using a plane perpendicular to the exhaust direction of the pressure relief hole as the projection plane, the projections of at least two of the pressure relief holes on the projection plane are located inside the projection of the first dustproof component on the projection plane.

[0015] In one embodiment, the first dustproof component is at least one of nylon mesh or nonwoven fabric.

[0016] In one embodiment, the sound-generating element includes:

[0017] A housing having an internal receiving space, and the sound outlet and pressure relief hole both being disposed on the housing; and

[0018] A sound-emitting module is housed within the receiving space, and the sound-emitting module is used to emit sound.

[0019] In one embodiment, the housing includes:

[0020] The first half-shell, wherein the pressure relief hole is located in the first half-shell; and

[0021] The second half-shell, the sound outlet is located on the second half-shell, and the first half-shell and the second half-shell are spliced ​​together.

[0022] In one embodiment, the headphone structure further includes:

[0023] The auxiliary component includes a mainboard unit and a battery assembly, the mainboard unit being electrically connected to the sound-generating module; and

[0024] A connector is connected between the auxiliary component and the sound-emitting component to form a clamping space between the sound-emitting component and the auxiliary component, the clamping space being used to clamp the earphone structure onto the user's ear.

[0025] This utility model's earphone structure includes a sound-generating element, a sound outlet, and pressure relief holes on the sound-generating element. At least two pressure relief holes are provided. This design reduces the probability of the pressure relief holes being completely blocked. Even if one is blocked, the other can still maintain the balance of internal and external air pressure, thus ensuring good internal and external air pressure balance under different usage conditions. This reduces discomfort during wear and improves user comfort. Furthermore, the at least two pressure relief holes are located on the side of the sound-generating element away from the ear canal (i.e., on the inner side of the earphone structure). This ensures that the pressure relief holes are positioned away from the user's ear canal when wearing the earphone structure, further reducing the probability of them being blocked. Placing the pressure relief holes on the inner side of the earphone structure helps improve the aesthetic integrity of the earphone structure, making the outer surface more complete and enhancing its beauty. Simultaneously, the design of at least two pressure relief holes forms an effective sound wave cancellation mechanism, reducing sound leakage and protecting user privacy. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the earphone of this utility model;

[0028] Figure 2 This is a schematic diagram of the headphone structure of this utility model from another perspective;

[0029] Figure 3 This is a schematic diagram of the first half-shell of the earphone structure of this utility model in the separated state;

[0030] Figure 4 This is an exploded view of the sound-generating component of the earphone structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the sound outlet and the second half-shell of the earphone structure of this utility model in a separated state;

[0032] Figure 6 This is a schematic diagram of the second half-shell of the earphone structure of this utility model in the separated state;

[0033] Figure 7 This is a schematic diagram of the disassembled sound outlet of the earphone structure of this utility model.

[0034] Explanation of icon numbers:

[0035] 1. Sound-generating component; 11. Housing; 111. First half-shell; 112. Second half-shell; 1121. Mounting hole; 12. Sound-generating module;

[0036] 2. Nozzle; 3. Pressure relief hole; 31. First end; 32. Second end; 4. First dustproof component; 5. Auxiliary component; 6. Connecting component; 7. Clamping space; 8. Second dustproof component.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] 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 scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] In existing headphone designs, pressure relief vents are typically placed in the rear cavity of the headphone to optimize sound quality and improve wearing comfort. The main function of these vents is to balance air pressure, reduce discomfort during wear, and improve sound quality, especially low-frequency response. Currently, headphone rear cavities usually only have one pressure relief vent. This single-vent design means that the vent loses its pressure relief function when it is accidentally blocked by hair, earlobes, or other objects. In addition, the single-vent design cannot form an effective sound wave cancellation mechanism, resulting in a more serious sound leakage problem. This not only affects the user's privacy but may also disturb the surrounding environment.

[0042] Based on this, refer to Figure 1 , Figure 2 As shown, this application embodiment provides an earphone structure, including a sound-emitting element 1, a sound outlet 2, and a pressure relief hole 3; wherein the sound-emitting element 1 is used to emit sound, and in use, the sound-emitting element 1 is configured to be placed in the user's ear canal; the sound outlet 2 is disposed on the sound-emitting element 1, and the sound outlet 2 is used to transmit the sound emitted by the sound-emitting element 1 to the user's ear canal; the pressure relief hole 3 is disposed on the sound-emitting element 1, and the pressure relief hole 3 is used to balance the air pressure inside and outside the sound-emitting element 1, thereby improving the user's wearing comfort; wherein at least two pressure relief holes 3 are provided, the design of at least two pressure relief holes 3 can reduce the probability of the pressure relief function failing due to the pressure relief hole 3 being blocked, and at the same time can also generate an effective sound wave cancellation mechanism and optimize the sound wave propagation path to improve the sound leakage prevention effect of the earphone structure, thereby effectively reducing sound leakage and protecting the user's privacy.

[0043] In this embodiment, the pressure relief hole 3 is provided on the sound-generating component 1 and is used to connect the internal environment of the sound-generating component 1 with the external environment, thereby achieving the effect of relieving pressure inside the sound-generating component 1. When the sound-generating component 1 is inserted into or partially inserted into the ear canal, the air inside the ear canal is compressed, causing the air pressure inside the ear canal to rise. The pressure relief hole 3 can allow some air to be discharged from the ear canal, thereby balancing the air pressure inside and outside the ear canal and reducing the pressure and discomfort when wearing the headphones. When wearing headphones for a long time, changes in the air pressure inside the ear canal may cause ear fatigue. Balancing the air pressure through the pressure relief hole 3 can significantly reduce this fatigue and improve wearing comfort.

[0044] It is understandable that when the sound-generating component 1 is at least partially inserted into the user's ear canal, the environment inside the ear canal is connected to the outside through the sound outlet 2, the inner cavity of the sound-generating component 1, and the pressure relief hole 3, thereby achieving the effect of balancing the internal and external air pressure.

[0045] In this embodiment, at least two pressure relief holes 3 are provided, so that when one pressure relief hole 3 is blocked, the other pressure relief hole 3 can still maintain the balance of internal and external air pressure, reducing discomfort when wearing; at the same time, the design of at least two pressure relief holes 3 can form an effective sound wave cancellation mechanism, that is, it can better cancel the sound waves at the pressure relief hole 3, reduce the sound heard by people around, and achieve a better sound leakage prevention effect.

[0046] In this embodiment, the shape of the pressure relief hole 3 can be circular, elliptical, rectangular, etc. This solution does not limit the shape of the pressure relief hole 3. In addition, the number of pressure relief holes 3 in this solution is preferably even, such as 2, 4, etc. An even number of pressure relief holes 3 can more easily achieve a symmetrical layout. A symmetrical layout helps to ensure that the propagation path and phase relationship of the sound waves in all directions are more consistent, thereby improving the effect of sound wave cancellation.

[0047] In this embodiment, the number of pressure relief holes 3 should not be too large. Too many pressure relief holes 3 will weaken the structural strength of the earphone shell 11. Each pressure relief hole 3 will form a weak point on the earphone shell 11. Too many pressure relief holes 3 will lead to too many weak points, thereby reducing the overall strength of the earphone structure. Too many pressure relief holes 3 will also make the stress concentration problem more serious. The edge of each pressure relief hole 3 is a stress concentration point. Too many pressure relief holes 3 will increase the risk of stress concentration, making the earphone more prone to cracking or damage during use. Considering acoustic performance and structural strength, as a preferred option, this solution selects to provide two pressure relief holes 3 on the sound-generating component 1.

[0048] In this embodiment, the two pressure relief holes 3 are located on the side of the sound-generating element 1 away from the ear canal, such as... Figure 1 As shown, when in use, the user aligns the sound outlet 2 on the sound-emitting component 1 with the ear canal and inserts it into the ear canal, thereby transmitting the sound generated by the valve sound-emitting component 1 to the user's ear canal via the sound outlet 2; as Figure 2 As shown, the two pressure relief holes 3 are set on the side of the sound-generating component 1 away from the ear canal, that is, on the inner side of the headphone structure. Setting the pressure relief holes 3 on the inner side of the headphone structure helps to improve the appearance integrity of the headphone structure, making the outer appearance surface of the headphone structure more complete and enhancing the aesthetics of the headphone structure.

[0049] In this embodiment, as Figure 2 As shown, when the sound outlet 2 on the sound-emitting component 1 is aligned with the ear canal and inserted into the ear canal, the pressure relief hole 3 is positioned away from the user's auricle. This design can prevent the user's auricle from accidentally blocking the pressure relief hole 3 when wearing the device, thereby reducing the probability of the pressure relief hole 3 being blocked during use and improving the user's comfort when wearing the device.

[0050] Reference Figure 2As shown in one embodiment of this application, the two pressure relief holes 3 are arranged close together to cancel out the sound waves at the two pressure relief holes 3. When the two pressure relief holes 3 are arranged close together, the sound waves they emit are more consistent in phase, which means that the propagation paths and phase relationships of the two sound waves in space are closer, making it easier to form destructive interference. If the two pressure relief holes 3 are far apart, the phase difference of the sound waves they emit may be large when they reach a certain point, making it difficult to form effective destructive interference and failing to achieve a good sound wave cancellation mechanism. This results in a weak sound leakage prevention effect of the headphone structure and an inability to protect the user's privacy.

[0051] In this embodiment, the two pressure relief holes 3 are positioned close to each other to ensure that the sound waves emitted by them form destructive interference in a specific direction, thereby reducing sound leakage. This design can effectively cancel the sound waves at the pressure relief holes 3 and improve the sound leakage prevention effect.

[0052] In this embodiment, the distance between the two pressure relief holes 3 should not be set too close. If the distance between the two pressure relief holes 3 is too close, the material thickness between the two pressure relief holes 3 will become very thin (resulting in a weakening of the structural strength between the two pressure relief holes 3). Then, when the headphone structure is subjected to external force, the material between the two pressure relief holes 3 can easily be squeezed and deformed, or even break directly, causing damage to the headphone structure and reducing its structural stability. At the same time, setting the distance between the two pressure relief holes 3 too close will significantly increase the processing difficulty. The processing equipment needs to perform high-precision processing in a very small area, which not only increases the processing cost but also easily leads to processing errors.

[0053] Reference Figure 3 As shown, in one embodiment of this application, two pressure relief holes 3 are provided on the sound-generating component 1, and in the arrangement direction of the pressure relief holes 3, the two pressure relief holes 3 have a first end 31 that is close to each other and a second end 32 that is far away from each other, and the distance between the two first ends 31 is 0.6mm-2mm.

[0054] In this embodiment, the distance between the two pressure relief holes 3 is set to 0.6mm-2mm in the arrangement direction of the two pressure relief holes 3, for example, it can be 0.7mm, 0.8mm, 1mm, 1.5mm, etc., so as to optimize the acoustic performance, reduce the processing difficulty and cost, and improve the comfort and reliability in actual use while ensuring the structural strength of the earphone.

[0055] Reference Figure 3As shown, in one embodiment of this application, in the length direction of the pressure relief hole 3, one end of the pressure relief hole 3 forms a first end 31 and the other end forms a second end 32. That is, the arrangement direction of the two pressure relief holes 3 is consistent with the length extension direction of the single pressure relief hole 3. The length of the pressure relief hole 3 can be set to 2.4mm and the width can be set to 0.7mm. The pressure relief hole 3 of this size can better achieve the pressure relief effect.

[0056] It is understandable that the distance between the two pressure relief holes 3 refers to the distance between the two first ends 31, which is 0.6mm-2mm.

[0057] Reference Figure 3 As shown, in one embodiment of this application, the headphone structure further includes a first dustproof component 4, which is disposed inside the sound-generating component 1 and is used to block the two pressure relief holes 3. Taking the plane perpendicular to the exhaust direction of the pressure relief holes 3 as the projection plane, the projection of the two pressure relief holes 3 on the projection plane is located inside the projection of the first dustproof component 4 on the projection plane, thereby achieving complete sealing of the two pressure relief holes 3 by the first dustproof component 4 to improve the dustproof effect.

[0058] In this embodiment, the first dustproof component 4 can be attached to the inner wall of the sound-generating component 1 and positioned corresponding to the positions of the two pressure relief holes 3, thereby sealing the pressure relief holes 3 opened on the sound-generating component 1. This can effectively prevent external dust and debris from entering the interior of the sound-generating component 1, while also ensuring the normal function of the pressure relief holes 3.

[0059] Understandably, attaching the first dustproof component 4 to the inner wall of the sound-generating component 1 and positioning it at the location corresponding to the pressure relief hole 3 can form a physical barrier, effectively preventing external dust and debris from entering the interior of the sound-generating component 1. This design can significantly improve the dustproof performance of the headphones and extend their service life. By preventing dust and debris from entering the interior of the sound-generating component 1, the problems of sound quality degradation and component damage caused by dust accumulation can be reduced. This not only improves the user experience but also reduces the maintenance cost of the headphones.

[0060] In this embodiment, the first dustproof component 4 can be fixed to the inner wall of the sound-generating component 1 by means of glue, clips or heat fusion to ensure the sealing between the first dustproof component 4 and the sound-generating component 1 and prevent dust and debris from entering from the gaps; the shape of the first dustproof component 4 should be designed to match the shape of the inner wall of the sound-generating component 1 to ensure a tight fit and reduce the gaps between the two.

[0061] In one embodiment of this application, the first dustproof component 4 is at least one of nylon mesh or non-woven fabric; wherein, the nylon mesh has good air permeability, allowing airflow to pass through, thereby ensuring the air pressure regulation function of the pressure relief hole 3; at the same time, the mesh structure of the nylon mesh can effectively block dust and debris, preventing them from entering the interior of the sound-generating component 1, and its mesh size can be adjusted as needed to achieve the best dustproof effect; in addition, nylon material has high strength and wear resistance, and can withstand a certain amount of external force and wear during long-term use, extending the service life of the first dustproof component 4, and the nylon mesh has good durability, is not easy to age or deform, and can maintain good performance during long-term use.

[0062] Understandably, since the nylon mesh is a flexible structural component, it can be tightly fitted to the inner wall of the sound-generating component 1 to improve the sealing effect.

[0063] In this embodiment, the first dustproof component 4 is designed with non-woven fabric, which can also achieve the above effect. Non-woven fabric has good air permeability, allowing airflow to pass through, thereby ensuring the air pressure regulation function of the pressure relief hole 3.

[0064] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in one embodiment of this application, the sound-emitting component 1 includes a housing 11 and a sound-emitting module 12; wherein, a receiving space is formed inside the housing 11, and the sound outlet 2 and the pressure relief hole 3 are both provided on the housing 11; the sound-emitting module 12 is provided in the aforementioned receiving space, and the sound-emitting module 12 is used to emit sound.

[0065] In this embodiment, the pressure relief hole 3 and the sound outlet 2 are both disposed through the side wall of the housing 11, thereby achieving the effect of connecting the above-mentioned accommodating space with the external environment. The pressure relief hole 3 is connected to the external environment to balance the internal and external air pressure, and the sound outlet 2 is connected to the external environment to transmit the sound generated by the sound-generating diaphragm assembly into the ear canal.

[0066] In this embodiment, placing the sound-generating module 12 within the housing 11's containment space can effectively reduce interference from the external environment. For example, external noise and airflow fluctuations may affect the vibration of the sound-generating module 12, thereby affecting sound quality. The containment space can provide a relatively enclosed environment, reducing these interferences. At the same time, placing the sound-generating module 12 within the containment space can effectively protect it from external physical damage. For example, headphones may be squeezed or bumped during wearing, removing, or storage. The containment space can provide a certain buffer, reducing direct impact on the sound-generating module 12.

[0067] In this embodiment, the sound-generating module 12 can be fixed in the receiving space by means of glue, clips or screws; for example, using clips can facilitate the installation and removal of the sound-generating module 12, while ensuring that it will not loosen during use; a buffer material, such as silicone or sponge, can be placed between the sound-generating module 12 and the receiving space to reduce the impact of external impacts on the sound-generating module 12; for example, a silicone buffer pad can provide a good buffering effect and also has a certain sound insulation performance.

[0068] Reference Figure 3 , Figure 4 , Figure 6 As shown, in one embodiment of this application, the housing 11 includes a first half-shell 111 and a second half-shell 112; wherein, a pressure relief hole 3 is provided on the first half-shell 111, and a sound outlet 2 is provided on the second half-shell 112. The first half-shell 111 and the second half-shell 112 are spliced ​​together to form the aforementioned accommodating space and constitute the aforementioned housing 11 structure.

[0069] In this embodiment, as Figure 5 As shown, a mounting hole 1121 is provided on the second half shell 112, and the mounting hole 1121 penetrates the side wall of the second half shell 112. The sound outlet is a structural component with multiple holes, and the shape and contour of the sound outlet 2 match the shape and contour of the mounting hole 1121, thereby realizing the installation of the sound outlet 2 in the mounting hole 1121. For example, the fixed installation between the sound outlet 2 and the mounting hole 1121 can be achieved by applying glue or snap-fitting.

[0070] In this embodiment, as Figure 7 As shown, a second dustproof component 8 is attached to the inner side of the sound outlet 2 to prevent dust and debris from the external environment from entering the sound-generating component 1, while also having the effect of sound transmission; the second dustproof component 8 can be fixed to the inner wall of the sound outlet 2 by means of glue, clips or heat fusion; for example, the second dustproof component 8 can be a metal mesh, nylon mesh, etc.

[0071] In this embodiment, as Figure 4 As shown, a groove structure for installing the first dustproof component 4 is provided on the inner wall of the first half-shell 111, and the inner wall of the groove structure is used to restrict the outer periphery of the first dustproof component 4, thereby achieving stable installation of the dustproof component.

[0072] Understandably, the dimensions of the groove structure need to precisely match the outer circumferential dimensions of the first dustproof component 4 to ensure that the dustproof component can be tightly installed in the groove. The depth and width of the groove should be adjusted according to the thickness and width of the dustproof component to ensure that the dustproof component will not loosen in the groove. The shape of the groove structure can be designed according to the shape of the dustproof component. Common shapes include rectangle, circle or ellipse. For example, if the dustproof component is circular, the groove structure should also be designed to be circular to ensure that the dustproof component can be stably installed in the groove structure.

[0073] In this embodiment, the first half-shell 111 and the second half-shell 112 can be connected and fixed by applying glue. The appropriate type of glue can be selected according to the material of the earphone and the usage environment. For example, for the plastic shell 11, epoxy resin glue or hot melt glue can be selected; for the metal shell 11, high-strength structural glue can be selected.

[0074] Understandably, an appropriate amount of adhesive is evenly applied to the connecting surfaces of the first half-shell 111 and the second half-shell 112 to ensure that the adhesive can fully fill the gap. Depending on the characteristics of the selected adhesive, an appropriate curing time is allowed to ensure that the two half-shells are firmly bonded together.

[0075] In this embodiment, the first half-shell 111 and the second half-shell 112 can also be connected and fixed by a snap-fit ​​method. The snap-fit ​​method achieves the connection through the cooperation of the buckle and the slot, which is very convenient for assembly and disassembly without the need for additional tools. For example, buckles and slots are designed on the first half-shell 111 and the second half-shell 112. The buckles can be designed as elastic buckles or rigid buckles. Elastic buckles can provide a certain degree of elasticity, which is convenient for assembly and disassembly, while rigid buckles can provide stronger fixing force.

[0076] Reference Figure 1 , Figure 2 , Figure 3 As shown, in one embodiment of this application, the headphone structure further includes an auxiliary component 5 and a connector 6; wherein the auxiliary component 5 is used to house the main board unit and the battery assembly, the main board unit is electrically connected to the sound-generating module 12, and the battery assembly supplies power to the main board unit and the sound-generating module 12, thereby providing power support and necessary electronic function support for the headphones.

[0077] In this embodiment, the connector 6 is a key structure connecting the sound-generating component 1 and the auxiliary component 5. It can be made of nickel-titanium shape memory alloy, which has high elasticity and durability. At the same time, a core wire is also arranged in the connector 6 to ensure the transmission of signals between the auxiliary component 5 and the sound-generating component 1.

[0078] In this embodiment, as Figure 2 , Figure 3As shown, the auxiliary component 5 and the sound-generating component 1 are connected together by the connector 6, and a clamping space 7 is formed between the two. This space is used to clamp the headphone structure onto the user's ear. Through this clamping space 7, the headphone can be firmly clamped onto the ear and will not easily fall off even during vigorous exercise (such as running, jumping rope, etc.). The connector 6 is made of nickel-titanium shape memory alloy, which has high elasticity, high durability and shape memory characteristics, and can adaptively adjust the clamping force according to the user's ear shape.

[0079] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An earphone structure, characterized by, include: A sound-emitting element for emitting sound, and the sound-emitting element is configured for placement in a user's ear canal; A sound outlet is provided on the sound-generating component, and the sound outlet is used to transmit the sound emitted by the sound-generating component to the user's ear canal; as well as A pressure relief hole is provided on the sound-generating component. The pressure relief hole is configured to balance the air pressure inside and outside the sound-generating component, and at least two pressure relief holes are provided. At least two pressure relief holes are provided on the side of the sound-generating component away from the ear canal.

2. The earphone structure as described in claim 1, characterized in that, At least two of the pressure relief holes are positioned close together to counteract the sound waves at at least two of the pressure relief holes.

3. The earphone structure of claim 2, wherein In the arrangement direction of the pressure relief holes, at least two of the pressure relief holes have a first end that is close to each other and a second end that is far from each other; The distance between the two first ends is 0.6mm-2mm.

4. The earphone structure of claim 3, wherein Along the length of the pressure relief hole, one end of the pressure relief hole forms the first end and the other end forms the second end; The length of the pressure relief hole is 2.4 mm, and the width of the pressure relief hole is 0.75 mm.

5. The earphone structure of claim 1, wherein The headphone structure also includes a first dustproof component, which is disposed inside the sound-producing component and is used to block at least two of the pressure relief holes; Using a plane perpendicular to the exhaust direction of the pressure relief hole as the projection plane, the projections of at least two of the pressure relief holes on the projection plane are located inside the projection of the first dustproof component on the projection plane.

6. The earphone structure of claim 5, wherein The first dustproof component is at least one of nylon mesh or non-woven fabric.

7. A headphone structure according to any one of claims 1-6, characterized in that The sound-generating component includes: A housing having an internal receiving space, and the sound outlet and pressure relief hole both being disposed on the housing; and A sound-emitting module is housed within the receiving space, and the sound-emitting module is used to emit sound.

8. The earphone structure of claim 7, wherein The housing includes: The first half-shell, wherein the pressure relief hole is located in the first half-shell; and The second half-shell, the sound outlet is located on the second half-shell, and the first half-shell and the second half-shell are spliced ​​together.

9. The earphone structure of claim 7, wherein The headphone structure also includes: The auxiliary component includes a mainboard unit and a battery assembly, the mainboard unit being electrically connected to the sound-generating module; and A connector is connected between the auxiliary component and the sound-emitting component to form a clamping space between the sound-emitting component and the auxiliary component, the clamping space being used to clamp the earphone structure onto the user's ear.

Images