A headset

Abstract

The utility model relates to the technical field of wearing equipment, especially earphone, and its technical scheme's main point is: including half -in -ear loudspeaker part, ear -clamping part and ear beam, half -in -ear loudspeaker part and ear -clamping part set up in the both ends of ear beam respectively, be equipped with the sound hole on half -in -ear loudspeaker part, on the horizontal plane projection under the wearing state, the interval distance of the side of ear -clamping part close to half -in -ear loudspeaker part and the front end of half -in -ear loudspeaker part is 17mm -22mm, and the ear -clamping type earphone wearing problem of insufficient airtightness is overcome.

Description

Technical Field

[0001] This utility model relates to the field of wearable device technology, and in particular to an earphone. Background Technology

[0002] Headphones are audio output devices that convert audio signals into sound through ear cups or earplugs and transmit it to the user's ears. They are typically connected to various devices such as smartphones, computers, music players, televisions, and game consoles, and are widely used in scenarios such as music appreciation, telephone calls, gaming, and sports and fitness.

[0003] Among them, there are various structural designs of headphones. Ear clip headphones are currently a popular type of headphones. They mainly include an ear bridge, a speaker unit connecting the two ends of the ear bridge, and an ear clip. By placing the speaker unit and the ear clip on the front and back of the ear, and applying clamping force through the ear bridge, they can be worn stably and are suitable for sports and leisure scenarios.

[0004] However, current ear clips still have many shortcomings. For example, current earphone products still have insufficient airtightness, which may lead to sound quality degradation and susceptibility to external interference, and further improvements are still needed.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides an earphone to solve the problem of insufficient airtightness in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An earphone includes a semi-in-ear speaker, an ear clip, and an ear bridge. The semi-in-ear speaker and the ear clip are respectively disposed at both ends of the ear bridge. The semi-in-ear speaker has a sound outlet. In the horizontal projection of the earphone in the wearing state, the distance between the side of the ear clip near the semi-in-ear speaker and the front end of the semi-in-ear speaker is 17mm-22mm.

[0009] Preferably, the insertion depth of the semi-in-ear speaker is 11mm-15mm.

[0010] Preferably, the external width of the semi-in-ear speaker is 13mm-16mm.

[0011] Preferably, the in-ear angle of the semi-in-ear speaker is 20°-28°.

[0012] Preferably, pickup holes are provided on both sides opposite to each other of the semi-in-ear speaker.

[0013] Preferably, the length of the pickup hole is 2.5mm-4.5mm, and / or the width of the pickup hole is 0.5mm-1.5mm.

[0014] Preferably, the curvature of the side of the ear bridge near the semi-in-ear speaker is less than the curvature of the side of the ear bridge near the ear clip.

[0015] Preferably, the inner contour of the connection between the ear bridge and the ear clip is provided with an arc-shaped groove, which is used to fit the back of the ear helix.

[0016] Preferably, the distance between the semi-in-ear speaker and the ear clip is 2.5mm-4mm.

[0017] Preferably, the ear clip portion has a protruding detection mirror for heart rate monitoring on the side facing the semi-in-ear speaker portion.

[0018] Preferably, the thickness of the detection mirror is 0.5mm-2.0mm.

[0019] Preferably, the width of the detection mirror is 6.0mm-7.0mm and the length of the detection mirror is 10mm-11mm.

[0020] Preferably, the ear bridge is provided with a connecting wire, the ear clip is provided with a main board, the main board is provided with a connector, an FPC line is provided between the connector and the connecting wire, and the FPC line overlaps with the main board.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The earphones provided by this utility model adopt a semi-in-ear speaker, which allows the front end of the earphone to penetrate deep into the ear canal, thus improving the wearing stability of the earphones. On this basis, the distance between one side of the ear and the front end of the semi-in-ear speaker is set at 17mm-22mm, which allows the part of the semi-in-ear speaker larger than 17mm to enter the ear canal. This allows the sound outlet to be aligned with the ear canal, thus preventing the sound outlet from deviating from the ear canal opening and reducing the problem of sound leakage. The airtightness during sound transmission is optimized and improved.

[0023] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0024] 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 these drawings without creative effort.

[0025] Figure 1 This is a diagram illustrating the structure of a user's ear;

[0026] Figure 2 This is a schematic diagram of the structure of the earphone provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the earphone worn on the ear simulator from a horizontal projection view provided by an embodiment of the present invention;

[0028] Figure 4 This utility model provides a structural schematic diagram for demonstrating the width of the in-ear speaker's shape.

[0029] Figure 5 This is a schematic diagram of the structure of the pickup hole provided in an embodiment of the present invention;

[0030] Figure 6 This is a structural schematic diagram provided by an embodiment of the present invention to show another perspective of the pickup hole;

[0031] Figure 7 This is a structural schematic diagram of the earphone provided in another embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the clip ear portion provided in an embodiment of the present utility model;

[0033] Figure 9 This is a structural schematic diagram of the motherboard, connector, and FPC line provided in an embodiment of this utility model.

[0034] Figure label:

[0035] 1001. Ear canal; 1002. Helix; 1003. Helix foot; 1004. Antihelix; 1005. Tragus; 1006. Antitragus; 1007. Concha; 2. Semi-in-ear speaker; 21. Sound outlet; 22. Pickup hole; 23. Arc-shaped groove; 3. Ear clip; 4. Ear bridge; 5. Detection mirror; 6. Mainboard; 7. Connector; 8. FPC cable; 9. Ear simulator; 10. Connecting cable;

[0036] When the headphones are worn, the reference plane that is tangent to the elastic force exerted on the ear by the ear clip and located at the contact point between the ear clip and the back of the ear is called α.

[0037] The elastic force exerted by the ear clip on the back of the ear is F;

[0038] The distance between the side of the ear clip closest to the semi-in-ear speaker and the front end of the semi-in-ear speaker is d1;

[0039] The insertion depth of the semi-in-ear speaker when worn is d2;

[0040] The width of the semi-in-ear speaker is d3;

[0041] The angle of entry of the semi-in-ear speaker into the ear when worn is β;

[0042] The reference axis perpendicular to the reference plane α is I;

[0043] The reference axis that aligns with the length direction of the semi-in-ear speaker is O;

[0044] The length of the pickup hole is d4 and the width is d5;

[0045] From the perspective of horizontal projection, the line of symmetry that passes through the highest point of the ear bridge and extends vertically is δ;

[0046] The distance between the semi-in-ear speaker and the clip-on part is d6;

[0047] The thickness of the mirror is h1, the width is h2, and the length is h3. Detailed Implementation

[0048] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0049] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0050] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.

[0051] It should be explained that, in order to more clearly illustrate the use effect and functional application of the technical solution described in this utility model, this embodiment uses an ear simulator 9 (model GRASRA0045) as the wearing carrier. It can be understood that the ear simulator 9 usually refers to a tool that simulates the function of the human auditory system. Its core purpose is to reproduce the human ear's ability to receive, process, and locate sound. It can be used as an ear testing model. Although there are individual differences among different users, the ear simulator 9 can represent the application scenarios of most people. Therefore, it is beneficial for the solution provided by this utility model to achieve functional reproduction on most users. The solution mentioned in this embodiment is mainly described in the wearing state.

[0052] Furthermore, referring to Figure 1 The user's ear mainly includes physiological parts such as the ear canal 1001, helix 1002, crus of the helix 1003, antihelix 1004, tragus 1005, antitragus 1006, and concha 1007. The side of the ear furthest from the head is defined as the front of the ear, and the side closest to the head is defined as the back of the ear. Physiological parts such as the helix 1002, antihelix 1004, crus of the helix 1003, tragus 1005, and antitragus 1006 all protrude towards the front of the ear. The concha 1007 is surrounded by the crus of the helix 1003, tragus 1005, antihelix 1004, and antitragus 1006, creating a concave state. At this time, the opening of the ear canal 1001 ( Figure 1 The ear canal opening (not marked, hereinafter referred to as the ear canal opening) is located at the bottom of the concha cavity 1007. When wearing headphones, users usually insert the speaker into the concha cavity 1007. With the support of physiological parts such as the helix 1002, antihelix 1004, helix crus 1003, and tragus 1005, it can be stably worn in the user's ear.

[0053] However, for clip-on headphones, when wearing them, the headphones need to be clipped to the front and back of the ear to achieve a more stable wearing effect. However, conventional clip-on headphones still have the problem of insufficient airtightness after wearing, which leads to sound quality attenuation or susceptibility to external interference. Therefore, this embodiment provides a headphone to overcome this problem.

[0054] The following is in conjunction with the appendix Figure 2-9 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0055] Please refer to Figure 2 This utility model provides an earphone, which includes a semi-in-ear speaker 2, an ear clip 3, and an ear bridge 4. The semi-in-ear speaker 2 and the ear clip 3 are respectively disposed at both ends of the ear bridge 4.

[0056] Specifically, the ear bridge 4 is typically formed by wrapping steel wire and cable with a plastic layer. The steel wire provides elastic clamping force, while the cable plays a transmission role.

[0057] Meanwhile, the ear clip 3 typically includes components such as a housing, a main board 6, an antenna bracket, a battery, and a main control chip (not shown in the figure). The main board 6 is connected to the cable and installed inside the housing, which is fixedly connected to one end of the ear bridge 4 for protection. The antenna bracket, battery, and main control chip are integrated on the main board 6 and perform communication and control functions respectively.

[0058] In addition, the semi-in-ear speaker 2 in this embodiment includes a housing and a speaker. The speaker is installed inside the housing, and the housing is fixedly connected to the other end of the ear bridge 4. At this time, the speaker is connected to the main board 6 through a wire and emits sound under the control of the main control chip.

[0059] Reference Figure 2 and Figure 3 To improve the airtightness when the user wears the earphone, the semi-in-ear speaker 2 in this embodiment extends obliquely from the side near the ear bridge 4 toward the side away from the ear bridge 4, so as to lengthen the overall size of the semi-in-ear speaker 2. At this time, the extension direction of the semi-in-ear speaker 2 is equivalent to its length direction, thus forming an extended profile. On the one hand, the extended profile makes it easier for the semi-in-ear speaker 2 to penetrate deeper into the concha cavity 1007 to obtain a tighter wearing effect. On the other hand, it also allows a local area of ​​the semi-in-ear speaker 2 to penetrate deeper into the ear canal 1001, thus improving the airtightness when wearing the earphone.

[0060] Furthermore, a sound outlet 21 is provided on the semi-in-ear speaker 2. Specifically, the sound outlet 21 is located at the front end of the semi-in-ear speaker 2, so that the sound outlet 21 is directly opposite the opening of the ear canal 1001, and the sound generated by the speaker is transmitted through the sound outlet.

[0061] Furthermore, continue to refer to Figure 2 and Figure 3In this embodiment, the earphone is worn on the ear simulator 9. The semi-in-ear speaker 2 is inserted into the concha 1007, while the ear clip 3 is held at the back of the ear. At this time, the ear bridge 4 stretches and deforms, applying elastic force to the semi-in-ear speaker 2 and the ear clip 3. The semi-in-ear speaker 2 receives a clamping force acting on the back of the ear, and the clamping force F allows the earphone to be stably worn in the ear. Furthermore, to meet the user's airtightness requirements, a reference plane α is made at the contact position between the ear clip 3 and the back of the ear. The reference plane α is perpendicular to the clamping force F. Figure 3 From this perspective, if the reference plane α is set vertically and parallel to the reference plane α, the headphones are placed vertically. Based on this, Figure 3 The perspective in the image can also be understood as the horizontal projection of the headphones when they are being worn.

[0062] From this perspective, the distance between the side of the ear clip 3 closest to the semi-in-ear speaker 2 and the front end of the semi-in-ear speaker 2 is defined as d1, with d1 ranging from 17mm to 22mm. Actual wearing surveys show that the distance from the back of the ear to the ear canal opening is typically around 17mm. If the distance between the ear clip 3 and the front end of the semi-in-ear speaker 2 is set below 17mm, the semi-in-ear speaker 2 will not be able to enter the ear canal 1001, causing the sound outlet 21 to deviate from the ear canal opening, resulting in sound leakage and affecting airtightness. Conversely, if the distance is greater than 21mm, the overall size of the headphones will be too large, leading to discomfort and potentially making them unwearable. Therefore, by controlling the distance between 17mm and 22mm, the semi-in-ear speaker 2 can enter the ear canal 1001, reducing sound leakage and improving wearing comfort and user experience.

[0063] For example, the distance d1 between the side of the ear clip 3 near the semi-in-ear speaker 2 and the front end of the semi-in-ear speaker 2 can be 17mm, 17.5mm, 18mm, 19mm, 19.23mm, 20mm, 21mm or 22mm, etc. In another embodiment, the value of the distance d1 can be selected between any two of the above values, which will not be listed here.

[0064] Based on the above structural design, the earphone provided in this embodiment, by adopting a semi-in-ear speaker 2, can penetrate deep into the ear canal 1001, which is beneficial to obtaining good airtightness. On this basis, by setting the distance between one side of the ear clip 3 and the front end of the semi-in-ear speaker 2 between 17mm and 22mm, the part of the semi-in-ear speaker 2 larger than 17mm can enter the ear canal 1001, thereby making the sound outlet 21 opposite to the ear canal 1001, so as to avoid the sound outlet 21 being offset from the opening of the ear canal 1001, thereby reducing the problem of sound leakage caused by the sound outlet 21, and optimizing and improving the airtightness during sound transmission.

[0065] Furthermore, continue to refer to Figure 3 To optimize the airtightness of the headphones during wear, the insertion depth of the semi-in-ear speaker 2 is 11mm-15mm. Here, the insertion depth is defined as d2. When worn, the semi-in-ear speaker 2 is inserted into the concha 1007. At this point, the insertion depth is the same as the distance from the ear bridge 4 to the front end of the semi-in-ear speaker 2. By controlling the structural length of the semi-in-ear speaker 2, the insertion depth can be controlled. When the insertion depth is less than 11mm, the semi-in-ear speaker 2 may not be able to reach the ear canal 1001 properly, thus affecting the airtightness. Conversely, when the semi-in-ear speaker 2 is greater than 15mm, it may be too long, causing it to compress the ear and affecting wearing comfort. By controlling the in-ear depth d2 to 11mm-15mm, a deeper in-ear depth can be maintained, resulting in better sound quality. In addition, the airtightness between the in-ear depth and the ear canal 1001 is better, leading to better noise reduction.

[0066] For example, the insertion depth of the semi-in-ear speaker 2 can be 11mm, 12mm, 13mm, 13.35mm, 14mm or 15mm, or the insertion depth can be controlled between any two of the above parameter values, which will not be listed here.

[0067] Furthermore, referring to Figure 4To improve the comfort of wearing the headphones, the width of the semi-in-ear speaker 2 is defined as d3, with a value ranging from 13mm to 16mm. It is understood that the width direction of the semi-in-ear speaker 2 is perpendicular to its length or extension direction. When the width of the semi-in-ear speaker 2 is less than 13mm, it may loosen within the concha 1007, affecting wearing stability and causing sound leakage. Conversely, when the width of the semi-in-ear speaker 2 is greater than 16mm, it may compress the concha 1007, affecting wearing comfort. Therefore, a width of 13mm-16mm provides a suitable wearing size, meeting the needs of most users. This avoids excessive pressure on the ears due to excessive width and poor airtightness due to insufficient width, resulting in good comfort and airtightness.

[0068] For example, the external width of the semi-in-ear speaker 2 can be 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.1mm, 15.2mm, 15.3mm, 15.4mm, 15.4mm, 15.6mm, 15.7mm, 15.8mm, 15.9mm or 16mm. In another embodiment, the external width of the semi-in-ear speaker 2 can also be set between any two of the above parameter values, and no specific limitation is made here.

[0069] Furthermore, referring to Figure 3 The in-ear angle of the semi-in-ear speaker 2 when worn is defined as β, and the value of β is 20°-28°. It can be understood that a reference axis I perpendicular to the reference plane α is selected here, and a reference axis O is selected according to the length direction of the semi-in-ear speaker 2. The angle between the reference axis I and the reference axis O is the in-ear angle of the semi-in-ear speaker 2.

[0070] Experiments have shown that the natural in-ear angle for users is usually around 25°. If the in-ear angle of the semi-in-ear speaker 2 is set to less than 20° or greater than 28°, the semi-in-ear speaker 2 will not fit the in-ear angle well, and a gap will be formed between the semi-in-ear speaker 2 and the ear. This will cause discomfort when wearing the speaker and affect the airtightness of the fit. For example, the in-ear angle of the semi-in-ear speaker 2 can be 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27° or 28°, and no specific limitation is made here.

[0071] Based on the above structural design, when the in-ear angle of the semi-in-ear speaker 2 is between 20° and 28°, the semi-in-ear speaker 2 can be closer to the ear canal 1001, and the wearing comfort and airtightness are further optimized and improved.

[0072] Furthermore, referring to Figure 5 and Figure 6 The semi-in-ear speaker 2 has two pickup holes 22 on opposite sides. Specifically, the pickup holes 22 are disposed through the outer shell of the semi-in-ear speaker 2, and the two pickup holes 22 are located on opposite sides in the width direction of the semi-in-ear speaker 2. When the semi-in-ear speaker 2 is inserted into the concha cavity 1007, the width side of the semi-in-ear speaker 2 will abut against the inner edge of the antitragus 1006, which may cover the pickup hole 22. The pickup hole 22 is mainly used to collect sound to make the call clearer. In addition, the pickup hole 22 also participates in the sound adjustment. With the cooperation of the tuning mesh and the tuning cotton, it helps to adjust the sound more accurately and avoid the sound becoming muddy.

[0073] Therefore, when the microphone 22 is blocked, it may affect the sound quality of the headphones. Here, by placing the microphone 22 on opposite sides of the semi-in-ear speaker 2, it can be ensured that when the headphones are worn, one of the two microphones 22 faces away from the ear. This is beneficial for adjusting the sound and ensuring good sound quality. More importantly, by setting two microphones 22, the headphones are further designed with a symmetrical layout, which enables the left and right ear wearing functions of a single headphone, further optimizing and improving the wearing experience.

[0074] Furthermore, to ensure that the pickup hole 22 can pick up user or environmental sounds more clearly, its size and outline can be reasonably controlled to obtain a larger pickup area. In one embodiment, the pickup hole 22 has an elongated hole-shaped outline. In this case, the length of the pickup hole 22 can be changed separately to obtain a suitable pickup area. For ease of description, the length of the pickup hole 22 is defined as d4, and the length d4 of the pickup hole 22 is controlled between 2.5mm and 4.5mm.

[0075] If the length of the pickup hole 22 is less than 2.5mm, it may be too short, making it easy to be blocked when wearing the earphone, and it may also be blocked by dust and impurities over long-term use. On the other hand, if the length of the pickup hole 22 is greater than 4.5mm, it will be too long and may affect the shape and size of the semi-in-ear speaker 2. For example, the length of the pickup hole 22 can be controlled to 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm or 4.5mm, or the length of the pickup hole 22 can be controlled between any of the above two parameters, without specific restrictions.

[0076] Furthermore, the sound pickup effect can be altered by controlling the width of the pickup hole 22. For ease of description, the width of the pickup hole 22 is d5, specifically, d5 is 0.5mm-1.5mm. If the width of the pickup hole 22 is less than 0.5mm, it may be easily blocked. If the width of the pickup hole 22 is greater than 1.5mm, it may affect the shape and size of the semi-in-ear speaker 2. For example, the width of the pickup hole 22 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm. In another embodiment, the width of the pickup hole 22 can be controlled between any of the above parameters, without specific limitations.

[0077] In addition, in another embodiment, the length of the pickup hole 22 can be controlled between 2.5mm and 4.5mm and the width of the pickup hole 22 can be controlled between 0.5mm and 1.5mm. The specific parameter values ​​will not be listed here. By adopting the above technical solution, a larger pickup area can be obtained without affecting the shape and size of the semi-in-ear speaker 2, which is conducive to capturing external sounds more clearly.

[0078] Furthermore, to improve wearing comfort, based on the horizontal projection perspective, the highest point of the ear bridge 4 is selected, and a symmetrical line δ is drawn that passes through the highest point and extends vertically. The symmetrical line δ divides the ear bridge 4 into two parts, one part is close to the semi-in-ear speaker part 2, and the other part is close to the ear clip part 3. At this time, the curvature of the side of the ear bridge 4 close to the semi-in-ear speaker part 2 is less than the curvature of the side of the ear bridge 4 close to the ear clip part 3.

[0079] Based on the above structural design, the ear bridge 4 can form an asymmetrical structure. The curvature of the ear bridge 4 near the semi-in-ear speaker 2 is relatively straighter than that near the ear clip 3. This allows for a greater elastic swing amplitude between the ear bridge 4 and the semi-in-ear speaker 2 side when worn, thus providing a larger ear clip space. Comfortable clipping can be achieved from ear-to-ear (ear close to the head) to protruding ear (ear relatively far from the head), and from small ear (relatively narrow antihelix 1004) to large ear (relatively wide antihelix 1004). This reduces the contact between the inner contour of the earphone and the side of the antihelix 1002, which can cause compression or even tangling of the antihelix 1004. This satisfies the clip-on earphone's ability to clip and wear various ear shapes and sizes, improving the comfort of wearing the earphone.

[0080] Furthermore, continue to refer to Figure 6An arc-shaped groove 23 is provided on the inner contour of the connection between the ear bridge 4 and the ear clip 3. At this time, the helix 1002 usually protrudes towards the back of the ear. The contour of the arc-shaped groove 23 is set to conform to the contour of the back of the ear. The arc-shaped groove 23 is used to fit the back of the helix 1002. If the inner contours of the ear bridge 4 and the ear clip 3 are flat, the ear bridge 4 will press on the back of the helix 1002 when the headphones are worn, causing discomfort. Based on the above structural design, the arc-shaped groove 23 can accommodate the back of the helix 1002 and, by fitting it, avoid and support the back of the helix 1002, thus effectively improving the comfort when wearing it.

[0081] Furthermore, the distance between the semi-in-ear speaker 2 and the ear clip 3 is defined as d6, with a value ranging from 2.5mm to 4mm. When worn, if the distance between the semi-in-ear speaker 2 and the ear clip 3 is less than 2.5mm, the gap is too small, meaning the clamping force applied by the ear bridge 4 is too great, which can easily cause discomfort during long-term wear. Conversely, if the distance is greater than 4mm, the earphone will be too loose and may fall out due to insufficient clamping force. Therefore, by controlling the distance between the semi-in-ear speaker 2 and the ear clip 3 within 2.5mm-4mm, a comfortable experience can be achieved during long-term wear.

[0082] For example, the distance between the semi-in-ear speaker 2 and the ear clip 3 can be 2.5mm, 3mm, 3.5mm or 4mm, etc., or the distance between the semi-in-ear speaker 2 and the ear clip 3 can be controlled between any two of the above parameter values, without specific restrictions.

[0083] Reference Figure 7 and Figure 8 To optimize the earphone's functional experience, the ear clip 3 has a protruding detection mirror 5 for heart rate monitoring on the side facing the semi-in-ear speaker 2. The detection mirror 5 is attached to the ear skin. At this time, the ear clip 3 is equipped with a photoelectric sensor (not shown in the figure) and an LED light (not shown in the figure). The LED light and the photoelectric sensor are connected to the main control chip. When working, the LED light emits detection green or red light through the detection mirror 5. When the light shines on the skin, some of the light is scattered and reflected by the blood. When the heart beats, the blood volume will cause a slight change. This change will cause a slight change in the emitted light, which will be captured by the photoelectric sensor and analyzed to calculate the heart rate. Therefore, in this embodiment, in order to ensure the accuracy of the heart rate monitoring function, the detection mirror 5 is set to protrude outward, which can improve the tightness of the contact between the detection mirror 5 and the skin and ensure unobstructed light path interaction.

[0084] Furthermore, referring to Figure 7 The thickness of the detection lens 5 is 0.5mm-2.0mm. For ease of explanation, the thickness of the detection lens 5 is defined as h1. If the thickness of the detection lens 5 is less than 0.5mm, the protrusion of the detection lens 5 may be insufficient, affecting the tightness of the fit and the heart rate monitoring effect. If the thickness of the detection lens 5 is greater than 2.0mm, the protrusion of the detection lens 5 may be too large, easily causing discomfort or leaving marks on the skin under prolonged wear, affecting the user experience. When the thickness of the detection lens 5 is 0.5mm-2.0mm, it ensures good contact between the heart rate monitoring sensor and the skin, improving the accuracy of heart rate monitoring, while also optimizing wearing comfort.

[0085] For example, the thickness of the detection mirror 5 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm, or the thickness of the detection mirror 5 can be controlled between any two of the above parameter values, without any specific limitation.

[0086] Furthermore, the size of the contact area of ​​the detection mirror 5 is also an important factor affecting the accuracy of heart rate monitoring. When the size of the detection mirror 5 is too small, the area illuminated by light may be too small, affecting the light intensity required for normal light judgment. When the area of ​​the detection mirror 5 is too large, light leakage may occur, which will also affect the effect of mirror detection.

[0087] The detection mirror 5 typically has an elongated shape, therefore it has both width and length. Figure 8 At this point, the width of the detection mirror 5 is defined as h2, the length is defined as h3, and the value range of h2 is controlled within 6.0mm-7.0mm. The length of the detection mirror 5 is 10mm-11mm to obtain a suitable contact area.

[0088] Specifically, if the width of the detection mirror 5 is less than 6mm and the length of the detection mirror 5 is less than 10mm, the size of the detection mirror 5 is too small; while if the length of the detection mirror 5 is greater than 7mm and the length of the detection mirror 5 is greater than 11mm, the area of ​​the detection mirror 5 will be too large. Both of these situations will affect the effect of mirror detection.

[0089] For example, the width of the detection mirror 5 can be 6mm, 6.5mm or 7mm, or the width of the detection mirror 5 can be between any two of the above parameter values; in addition, the length of the detection mirror 5 can be 10mm, 10.5mm or 11mm, or the length of the detection mirror 5 can be between any two of the above parameter values, without any specific limitation.

[0090] In addition, as users' functional demands for headphones increase, more functional modules are incorporated into the headphones themselves. However, the size of the ear clip 3 has specific size requirements; based on this, referring to... Figure 9 To further optimize the structural layout and set more functional components within a limited space, this embodiment has a connecting line 10 inside the ear bridge 4 and a main board 6 inside the ear clip 3. The main board 6 has a connector 7. Preferably, the connector 7 is a BTB connector 7. It can be understood that the BTB (Board-to-Board) connector 7 refers to a connector 7 used to connect two or more circuit boards (PCBs).

[0091] Based on this, an FPC line 8 is provided between the connector 7 and the connecting line 10. FPC is short for Flexible Printed Circuit, also known as a flexible printed circuit board. Specifically, multiple solder points can be added to the FPC to connect the connection in the ear beam 4 to the solder points on the FPC. Then, the FPC line 8 is stacked with the motherboard 6. This can increase the vertical space utilization of the motherboard 6, freeing up more space for the motherboard 6 so that more components can be added on the motherboard 6. The compactness of the structure is improved and the component layout is optimized.

[0092] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An earphone, characterized in that, It includes a semi-in-ear speaker, an ear clip, and an ear bridge. The semi-in-ear speaker and the ear clip are respectively disposed at both ends of the ear bridge. The semi-in-ear speaker has a sound outlet hole. In the horizontal projection of the wearing state, the distance between the side of the ear clip near the semi-in-ear speaker and the front end of the semi-in-ear speaker is 17mm-22mm.

2. The earphone according to claim 1, characterized in that, The insertion depth of the semi-in-ear speaker is 11mm-15mm.

3. The earphone according to claim 1, characterized in that, The width of the semi-in-ear speaker is 13mm-16mm.

4. The earphone according to claim 1, characterized in that, The in-ear angle of the semi-in-ear speaker is 20°-28°.

5. The headphones according to any one of claims 1-4, characterized in that, The semi-in-ear speaker has pickup holes on both sides opposite to each other.

6. The earphone according to claim 5, characterized in that, The length of the pickup hole is 2.5mm-4.5mm, and / or the width of the pickup hole is 0.5mm-1.5mm.

7. The earphone according to any one of claims 1-4, characterized in that, The curvature of the side of the ear bridge closer to the semi-in-ear speaker is less than the curvature of the side of the ear bridge closer to the ear clip.

8. The headphones according to any one of claims 1-4, characterized in that, The inner contour of the connection between the ear bridge and the ear clip is provided with an arc-shaped groove, which is used to fit the back of the ear helix.

9. The headphones according to any one of claims 1-4, characterized in that, The distance between the semi-in-ear speaker and the clip-on part is 2.5mm-4mm.

10. The earphone according to any one of claims 1-4, characterized in that, The ear clip has a protruding detection mirror for heart rate monitoring on the side facing the semi-in-ear speaker.

11. The earphone according to claim 10, characterized in that, The thickness of the detection mirror is 0.5mm-2.0mm.

12. The earphone according to claim 10, characterized in that, The width of the detection mirror is 6.0mm-7.0mm, and the length of the detection mirror is 10mm-11mm.

13. The earphone according to any one of claims 1-4, characterized in that, The ear bridge is provided with a connecting wire, the ear clip is provided with a main board, the main board is provided with a connector, an FPC line is provided between the connector and the connecting wire, and the FPC line overlaps with the main board.

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