Open headphones

Abstract

The utility model provides an open type head -wearing earphone, including head beam and two sound production devices, every sound production device includes casing and the diaphragm sound production subassembly of installing in casing, the diaphragm sound production subassembly installs in the first side of casing in length direction, the inside surface of the second side of casing in length direction has elastic pad, the second side of casing in length direction has the assembly hole, the two ends of head beam respectively have the assembly section that presents the column, and with two assembly sections respectively insert packing in the assembly hole of two casings mode and two sound production devices are assembled together, and the position of sound production device on head beam is adjusted through two assembly sections respectively in two assembly holes sliding, every casing has the damper, and when the open type head -wearing earphone is worn to the head, the casing is prevented relative assembly section sliding by the damper. The utility model can make the size smaller head beam can adapt to different users and ensure that the wearing length is stable.

Description

Technical Field

[0001] This utility model relates to the field of headphones, and more specifically, to an open-back headphone. Background Technology

[0002] Unlike in-ear or earbud headphones, open-back headphones are audio output devices that use a headband to fix two sound-producing devices to the user's ears. Because the audio output devices are farther from the eardrum and the sound pressure is more evenly distributed when worn, open-back headphones are less stimulating to the hearing than in-ear headphones at the same volume. Furthermore, since there are no earplugs in the ear canal when wearing open-back headphones, bacterial growth is avoided, making them popular with many users.

[0003] However, existing open-back headphones are generally large in size. For example, in order to accommodate the head size of different wearers, they usually use an adjustable headband, and the width of the headband is relatively large to ensure stable wearing length. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an open-back headphone that addresses the issue of the relatively large size of the aforementioned open-back headphones.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide an open-back headphone, including a headband and two sound-generating devices; each of the sound-generating devices includes a housing and a diaphragm sound-generating component installed in the housing; The housing is strip-shaped, and the diaphragm sound-generating component is installed on the first side of the housing in the length direction. The inner surface of the second side of the housing in the length direction has an elastic pad. When the open-back headphones are worn on the head, the elastic pad is in contact with the face and reduces the pressure of the inner surface of the first side of the housing in the length direction at the entrance of the external auditory canal. The second side of the housing along its length has an assembly hole that penetrates the housing. The headband has columnar assembly sections at both ends, each assembly section having a first limiting portion at its end. The radial dimension of the assembly section matches the radial dimension of the assembly hole, and the radial dimension of the first limiting portion is greater than the radial dimension of the assembly hole. The headband is assembled with two sound-generating devices by inserting the two assembly sections into the assembly holes of the two housings respectively, with the two first limiting portions protruding from the two housings. The position of the sound-generating devices on the headband is adjusted by the sliding of the two assembly sections within the two assembly holes. Each housing has a damping element, which prevents the housing from sliding relative to the assembly sections when the open-back headphones are worn on the head.

[0006] As a further improvement of this utility model, the assembly hole extends through the housing along the width direction of the housing.

[0007] As a further improvement of this utility model, the inner wall of the housing adjacent to the assembly hole has a mounting groove, the damping element is composed of a rubber pad fixed in the mounting groove, and when the assembly section of the head beam is inserted into the assembly hole, the surface of the assembly section is pressed against the surface of the rubber pad.

[0008] As a further improvement of this utility model, the headband has a cable inside, the cable passes through the headband along the axial direction of the headband, and the cable is led out from both ends of the headband; the housing has a cable hole, and the cable led out from the end of the headband passes through the cable hole and is electrically connected to the diaphragm sound-generating component inside the housing.

[0009] As a further improvement of this utility model, the assembly section has a second limiting part, the radial dimension of the second limiting part is greater than the radial dimension of the assembly hole, and when the housing is assembled to the assembly section, the assembly section is located between the first limiting part and the second limiting part.

[0010] As a further improvement of this utility model, at each end of the headband, the length of the cable exposed in the headband portion is not less than the distance between the first limiting portion and the second limiting portion.

[0011] As a further improvement of this utility model, the head beam includes a U-shaped main body section, the radial dimension of which is the same as the radial dimension of the assembly section, and the two assembly sections are respectively integral with the main body section.

[0012] As a further improvement of this utility model, the headband includes an elastic metal wire and an elastic wrapping body. The elastic metal wire extends from the main body section to the two assembly sections, and the elastic wrapping body wraps around the elastic metal wire. As a further improvement of this utility model, the cross-section of the head beam is elliptical or flattened oval.

[0013] As a further improvement of this utility model, the cross-sectional dimensions of the headband are less than 10×5mm.

[0014] The present invention has the following advantages: by setting mounting holes in the housing of the sound-generating device and sliding the mounting section of the headband in the mounting holes, combined with the damping components in the housing, the smaller headband can be adapted to different users and ensure a stable wearing length. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an open-back headphone provided in an embodiment of the present invention.

[0016] Figure 2This is an exploded structural diagram of the headband assembled into the housing of the sound-generating device in the open-back headphones provided in this embodiment of the utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the sound-generating device in an open-back headphone provided in this embodiment of the utility model.

[0018] Figure 4 This is a schematic diagram of the inner side of the sound-generating device in the open-back headphones provided in this embodiment of the present invention.

[0019] Figure 5 This is an exploded structural diagram of the sound-generating device in an open-back headphone provided in this embodiment of the utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] like Figure 1 The diagram shown is a structural schematic of an open-back headphone provided in this embodiment of the invention. This open-back headphone can be worn on the head and plays audio or voice. The open-back headphone of this embodiment includes a headband 10 and two sound-generating devices 20. The headband 10 is U-shaped, and the two sound-generating devices 20 are respectively mounted at both ends of the headband 10. When the open-back headphone is worn, the headband 10 is worn on the head, and the two sound-generating devices 20 are suspended from the ears via the headband 10. The wearing method of the above-mentioned open-back headphone is similar to that of existing open-back headphone, and will not be described in detail here.

[0022] Combination Figures 2-3 As shown, each sound-generating device 20 includes a housing and a diaphragm sound-generating assembly installed within the housing. Specifically, the housing is strip-shaped, meaning that the housing extends along its length (e.g., ...). Figure 2 The dimension (in the direction indicated by the middle arrow X) is significantly larger than that of the shell in its width direction (e.g., Figure 2The dimensions (in the direction indicated by the middle arrow Y) are as follows: for example, the overall length of the shell is 2-5cm and the width is 1-2cm. When the open-back headphones are worn, the length of the shell is roughly horizontal. The diaphragm sound-generating component is installed on the first side of the shell's length direction. The inner surface of the second side of the shell's length direction (i.e., the side facing the body when worn) has an elastic pad 25. That is, the elastic pad 25 and the diaphragm sound-generating component are located on different sides of the shell's length direction. When the open-back headphones are worn on the head, the elastic pad 25 is against the face, and the inner surface of the first side of the shell's length direction (i.e., the side where the diaphragm sound-generating component is installed) faces the entrance of the external auditory canal. The elastic pad 25 reduces the pressure of the inner surface of the first side of the shell's length direction at the entrance of the external auditory canal. In other words, when the open-back headphones are worn on the head, the inner surface of the first side of the shell's length direction (i.e., where the diaphragm sound-generating component is located) faces the entrance of the external auditory canal. The elastic pad 25 can elevate the shell at the diaphragm sound-generating component, reducing the pressure of the shell on the ear and improving wearing comfort.

[0023] Those skilled in the art will understand that, Figure 5 As shown, the aforementioned diaphragm sound-generating assembly may include a diaphragm sound generator 231 (e.g., a speaker), a circuit board 233 electrically connected to the diaphragm sound generator 231 (which may be located inside the housing of one of the sound-generating devices 20), etc. Correspondingly, the housing has a sound outlet 214 at a position corresponding to the diaphragm sound generator 231. The aforementioned diaphragm sound generator 231, circuit board 233, etc., can all adopt conventional structures in the art, and the aforementioned open-back headphones may also include conventional structures such as a microphone 30, which will not be described in detail here.

[0024] In practical applications, one of the sound-generating devices 20 has a battery 232 inside its housing, and the other sound-generating device 20 has a main control board inside its housing. The main control board has an audio decoding circuit, a Bluetooth module, a charging and discharging circuit, etc. That is, the open-back headphones of this utility model can be wirelessly connected to an audio playback device and play audio from the audio playback device.

[0025] The second side of the shell in the length direction has an assembly hole 211, and the assembly hole 211 penetrates the shell. For example, when the shell is formed by the shell body 21 and the cover 22 being fastened together, the assembly hole 211 can be located on the shell body 21 and penetrate the shell body 21. Correspondingly, each end of the head beam 10 has a columnar assembly section 12. Each assembly section 12 has a first limiting part 13 at its end. The radial dimension of the assembly section 12 (i.e., the dimension of the cross section perpendicular to the axial direction) is adapted to the radial dimension of the assembly hole 211 (i.e., the assembly section 12 can be inserted into the assembly hole 12 and will not wobble). The radial dimension of the first limiting part 13 is greater than the radial dimension of the assembly hole 211 (i.e., the first limiting part 13 cannot pass through the assembly hole 211). The head beam 10 is assembled with the two sound-generating devices 20 by inserting the two assembly sections 12 into the assembly holes 211 of the two housings respectively and by having the two first limiting parts 13 protrude from the two housings respectively. The position of the sound-generating device 20 on the head beam 10 is adjusted by sliding the two assembly sections 12 in the two assembly holes 211 respectively. Those skilled in the art will understand that, to facilitate the insertion of the assembly segment 12 into the assembly hole 211, the radial shape of the assembly segment 12 is adapted to (e.g., the same as) the radial shape of the assembly hole 211. The first limiting part 13 can be fixed to the end of the assembly segment 12 after it has been inserted into the assembly hole 211. By allowing the housing to slide relative to the assembly segment 12 (i.e., the assembly segment 12 slides within the assembly hole 211), the wearing length of the open-back headphones can be adjusted to suit different users' head sizes and improve wearing comfort. The first limiting part 13 prevents the housing from detaching from the assembly segment 12 during sliding.

[0026] The aforementioned housing also includes a damping element 24, which prevents the housing from sliding relative to the mounting section 12 when the open-back headphones are worn on the head. The housing can be pulled to slide relative to the headband 10, while the damping element 24 prevents the housing from sliding relative to the headband 10 when no external force is applied. The damping element 24 ensures that the position of the sound-generating device 20 on the headband 10 remains stable, improving wearing stability.

[0027] The aforementioned open-back headphones, by providing mounting holes 211 in the housing of the sound-generating device 20, and by allowing the mounting section 12 of the headband 10 to slide within the mounting holes 211, combined with the damping element 24 inside the housing, enable the relatively small headband 10 to adapt to different users and ensure a stable wearing length.

[0028] In one embodiment of this utility model, the mounting hole 211 on the housing is along the width direction of the housing (i.e. Figure 2 The direction indicated by the middle arrow Y) penetrates the housing. That is, when the sound-generating device 20 is assembled to the head beam 10, the length direction of the sound-generating device 20 is approximately perpendicular to the axis of the head beam 10.

[0029] like Figure 2 As shown, in one embodiment of this utility model, the inner wall of the housing (e.g., the housing body 21) adjacent to the mounting hole 211 has a mounting groove 213. The damping member 24 is composed of a rubber pad (e.g., a silicone pad) fixed to the mounting groove 213. When the mounting section 12 of the head beam 10 is inserted into the mounting hole 211, the surface of the mounting section 12 presses against the surface of the rubber pad. That is, the damping member 24 prevents the mounting section 12 from sliding relative to the surface of the mounting section 12 through friction. Due to the presence of the mounting groove 213, the damping member 24 can be prevented from sliding within the housing. The damping member 24, composed of a rubber pad, is not only simple in structure but also safe and reliable. Of course, in practical applications, the damping member 24 can also take other forms, as long as it can prevent the mounting section 12 from sliding relative to the surface when no external force is applied.

[0030] like Figure 2-4 As shown, in one embodiment of this utility model, the headband 10 contains a cable 15. Those skilled in the art will understand that the cable 15 may have multiple independent strands. The cable 15 runs through the entire headband 10 along its axial direction, and the ends of the cable 15 are led out from both ends of the headband 10 (i.e., the ends of the assembly section 12). Correspondingly, the housing has a wire-passing hole 212. The cable 15, led out from the end of the headband 10, passes through the wire-passing hole 212 and is electrically connected to the diaphragm sound-generating assembly inside the housing. This structure simplifies the electrical connection structure of the diaphragm sound-generating assembly. In practical applications, the wire-passing hole 212 can be located between the assembly hole 211 and the first side of the housing, thereby facilitating electrical connection with the diaphragm sound-generating assembly inside the housing. Furthermore, the cable 15 exposed at the end of the headband 10 can also ensure electrical connection to the diaphragm sound-generating assembly when the housing slides relative to the assembly section 12.

[0031] In one embodiment of this utility model, the assembly section 12 further includes a second limiting part 14. The radial dimension of the second limiting part 14 is larger than the radial dimension of the assembly hole 211, meaning the second limiting part 14 cannot pass through the assembly hole 211. When the housing is assembled to the assembly section 12, the assembly section 12 is located between the first limiting part 13 and the second limiting part 14. In other words, the first limiting part 13 and the second limiting part 14 respectively limit the sliding position of the housing in two directions, preventing the housing from sliding too much on the headband 10 and affecting the wearing effect.

[0032] Specifically, at each end of the headband 10, the length of the cable 15 exposed beyond the headband 10 is not less than the distance between the first limiting part 13 and the second limiting part 14. This ensures that when the housing slides to the second limiting part 14, the point where the cable 15 connects to the diaphragm sound-generating assembly still experiences relatively little stress.

[0033] The aforementioned head beam 10 also includes a U-shaped main body section 11, the radial dimension of which is the same as the radial dimension of the assembly section 12, and the two assembly sections 12 are integrally formed with the main body section 11. For example, the second limiting part 14 can be fixed to the head beam 10 and divide the head beam 10 into the main body section 11 and the assembly section 12.

[0034] In one embodiment of this utility model, the headband 10 includes an elastic metal wire 16 and an elastic wrapping body. The elastic metal wire 16 extends from the main body segment 11 to two assembly segments 12, and the elastic wrapping body wraps around the elastic metal wire 16. The elastic wrapping body can be made of a plastic material with a certain elasticity, and the cable 15 is also wrapped by the elastic wrapping body. Those skilled in the art will understand that the headband 10 is composed of the main body segment 11 and two assembly segments 12 in its axial direction, and includes the elastic wrapping body, the cable 15, and the elastic metal wire 16 in its radial direction. The elastic metal wire 16 enables the headband 10 to have high structural strength and high elasticity, allowing the headband 10 to clamp the human head and allowing the two sound-generating devices 20 to better fit the human body, improving the stability of wearing. Of course, in practical applications, the headband 10 may also only include the elastic wrapping body and the cable 15 passing through the elastic wrapping body.

[0035] like Figure 2 As shown, the cross-section of the headband 10 is elliptical or oval (i.e., the dimensions in the two vertical directions are different), and correspondingly, the mounting hole 211 is also elliptical or oval. This structure ensures wearing comfort while preventing the mounting section 12 from rotating within the mounting hole 211, thus improving wearing stability.

[0036] Specifically, the cross-sectional dimensions of the headgear 10 are less than 10×5mm. For example, when the cross-section of the headgear 10 is elliptical, its major axis is less than 10mm and its minor axis is less than 5mm.

[0037] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An open-back headphone, characterized in that, It includes a headband and two sound-generating devices; each of the sound-generating devices includes a housing and a diaphragm sound-generating assembly installed within the housing; The housing is strip-shaped, and the diaphragm sound-generating component is installed on the first side of the housing in the length direction. The inner surface of the second side of the housing in the length direction has an elastic pad. When the open-back headphones are worn on the head, the elastic pad is in contact with the face and reduces the pressure of the inner surface of the first side of the housing in the length direction at the entrance of the external auditory canal. The second side of the housing along its length has an assembly hole that penetrates the housing. The headband has columnar assembly sections at both ends, each assembly section having a first limiting portion at its end. The radial dimension of the assembly section matches the radial dimension of the assembly hole, and the radial dimension of the first limiting portion is greater than the radial dimension of the assembly hole. The headband is assembled with two sound-generating devices by inserting the two assembly sections into the assembly holes of the two housings respectively, with the two first limiting portions protruding from the two housings. The position of the sound-generating devices on the headband is adjusted by the sliding of the two assembly sections within the two assembly holes. Each housing has a damping element, which prevents the housing from sliding relative to the assembly sections when the open-back headphones are worn on the head.

2. The open-back headphones according to claim 1, characterized in that, The mounting hole extends through the housing along the width direction of the housing.

3. The open-back headphones according to claim 1, characterized in that, The inner wall of the housing adjacent to the assembly hole has a mounting groove. The damping element is made of a rubber pad fixed in the mounting groove. When the assembly section of the head beam is inserted into the assembly hole, the surface of the assembly section is pressed against the surface of the rubber pad.

4. The open-back headphones according to claim 1, characterized in that, The headband contains cables that pass through it along its axial direction and extend from both ends of the headband. The housing has wire holes through which cables extending from the ends of the headband pass and connect to the diaphragm sound-generating assembly inside the housing.

5. The open-back headphones according to claim 4, characterized in that, The assembly section has a second limiting part, the radial dimension of which is greater than the radial dimension of the assembly hole, and when the housing is assembled to the assembly section, the assembly section is located between the first limiting part and the second limiting part.

6. The open-back headphones according to claim 5, characterized in that, At each end of the headband, the length of the cable exposed in the headband portion is not less than the distance between the first limiting portion and the second limiting portion.

7. The open-back headphones according to claim 1, characterized in that, The head beam includes a U-shaped main body section, the radial dimension of which is the same as that of the assembly section, and the two assembly sections are integrally formed with the main body section.

8. The open-back headphones according to claim 7, characterized in that, The headband includes an elastic metal wire and an elastic wrapping body. The elastic metal wire extends from the main body section to two assembly sections, and the elastic wrapping body wraps around the elastic metal wire.

9. The open-back headphones according to claim 7, characterized in that, The cross-section of the head beam is elliptical or oval.

10. The open-back headphones according to claim 7, characterized in that, The cross-sectional dimensions of the head beam are less than 10×5mm.

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