Ear clip headphones

Abstract

Ear clip headphones, characterized in that they comprise a sound-generating part used for insertion into the cavum conchae of a wearer, a contact part used for resting against the back of the wearer's ear, and an ear hook connecting the sound-generating part to the contact part, wherein the contact part and the sound-generating part assume a clamping position to enable the wearing of the ear clip headphones by clamping the ear clip headphones to the helix of the wearer, wherein the sound-generating part comprises a first housing and a sound-generating arrangement, wherein the first housing has a first receiving chamber in which the sound-generating arrangement is arranged, wherein a sound outlet opening is provided in the first housing through which sound generated by the sound-generating arrangement is emitted, and wherein the ear hook has an ear hook symmetry plane in its longitudinal direction.and wherein a central axis of the sound outlet forms an angle between 15° and 45° with the ear hook symmetry plane and is located below the ear hook symmetry plane when worn.

Description

[0001] This application is based on the Chinese patent application with application number CN 202311701969.7 and a filing date of December 11, 2023, and claims priority therefrom. The entire content of that patent application is hereby incorporated into this application by reference. Technical field

[0002] The present application relates to the field of sound-generating devices, in particular an ear clip headphone. State of the art

[0003] Headphones are widely used in everyday life. They can be used in conjunction with electronic devices such as mobile phones and computers to provide the user with sound playback. Ear clip headphones represent a new type of headphone; they are typically small and compact, clip onto the wearer's ear canal, and offer greater wearing comfort. The sound-generating component of an ear clip headphone is inserted into the wearer's conchae (the hollow of the ear), which imposes certain limitations regarding the size of the sound-generating component. The dimensions of a sound-generating arrangement that can be accommodated within the component are also limited. Therefore, this results in a less than satisfactory listening experience. Disclosure of the invention

[0004] In one embodiment of the present application, an ear clip-on headphone is provided, comprising a sound-generating part used for insertion into the cavum conchae of a wearer, a contact part used for resting against the back of the wearer's ear, and an ear hook connecting the sound-generating part to the contact part, wherein the contact part and the sound-generating part assume a clamping position to enable the wearing of the ear clip-on headphone by clamping the ear clip-on headphone to the helix of the wearer, wherein the sound-generating part comprises a first housing and a sound-generating arrangement, the first housing having a first receiving chamber in which the sound-generating arrangement is arranged, and wherein a sound outlet opening is provided in the first housing through which sound generated by the sound-generating arrangement is emitted.wherein the ear hook has an ear hook symmetry plane in its longitudinal direction, and wherein a central axis of the sound exit opening forms an angle between 15° and 45° with the ear hook symmetry plane and is located below the ear hook symmetry plane when worn.

[0005] The concept of the present application allows for the adjustment of the angle between the central axis of the sound outlet and the ear hook symmetry plane to between 15° and 45°, enabling better alignment of the sound outlet towards the ear opening when worn, which contributes to improving the hearing performance of the ear clip headphones. Brief description of the characters Fig. Figure 1 shows a schematic structural representation of the appearance of an ear clip headphone according to an embodiment of the present application; Fig. Figure 2 shows a sectional view along the longitudinal direction of an ear hook according to an embodiment of the present application; Fig. Figure 3 shows a sectional view of a sound-generating part according to an embodiment of the present application, wherein the sound-generating part has two loudspeakers; Fig. Figures 4 to 7 each show schematic representations of the docking points between a first hard housing, a second hard housing and a first flexible body according to several different embodiments of the present application, which can simultaneously serve as schematic representations of the docking surfaces between a third hard housing, a fourth hard housing and a second flexible body; Fig. Figures 8 to 12 each show sectional views of a sound-generating part according to several different embodiments of the present application; Fig. Figure 13 shows a sectional view of a sound-generating part with a loudspeaker according to an embodiment of the present application; Fig. Figure 14 shows a sectional view of a sound-generating part according to an embodiment of the present application from a different perspective; Fig. Figure 15 shows a sectional view along the longitudinal direction of an ear hook according to an embodiment of the present application; Fig. Figure 16 shows sectional views of the third hard housing, the fourth hard housing and the second flexible body according to several different embodiments of the present application; Fig. Figure 17 shows an exploded view of a plant component according to an embodiment of the present application; Fig. Figure 18 shows an exploded view of a plant component according to another embodiment of the present application; Fig. Figure 19 shows a sectional view along the longitudinal direction of the ear hook according to another embodiment of the present application; Fig. Figure 20 shows a schematic three-dimensional structural representation of a headphone according to another embodiment of the present application; Fig. Figure 21 shows a sectional view along the longitudinal direction of the ear hook according to another embodiment of the present application; Fig. Figure 22 shows a sectional view of a sound-generating part according to another embodiment of the present application; Fig. Figure 101 shows a schematic representation of a formed position of a sound outlet opening and a worn state according to the present application; Fig. Figure 102 shows a schematic representation of supported states at different angles β according to the present application; Fig. 103 shows reference planes for anthropometry according to the present application; Fig. Figure 104 shows a diagram of frequency response curves at an ear canal opening at different angles β according to the present application when α is equal to 0; Fig. Figure 105 shows a diagram of frequency response curves at the ear canal opening at different angles α according to the present application when β is equal to 0; Fig. Figure 106 shows a schematic representation of supported states with a transversely arranged sound outlet opening and different angles γ according to the present application; Fig. 107-A shows a diagram of frequency response curves at the ear canal opening with a set gradient of different angles γ according to the present application; Fig. Figure 107-B shows an enlarged representation of a section of the curves from Fig. 107-A according to the present application; Fig. 108-A shows a sound field “free field” in the “horn effect” according to the present application; Fig. 108-B shows a sound field “diffuse field” in the “horn effect” according to the present application; Fig. 109-A shows contour maps of sound pressure levels at different 0 values ​​and h-gap values ​​according to the present application; Fig. 109-B shows contour maps of sound pressure levels at different 0 values ​​and h-gap values ​​according to the present application; Fig. 109-C shows contour maps of sound pressure levels at different 0 values ​​and h-gap values ​​according to the present application; and Fig. Figure 110 shows a diagram of sound loss curves for differently designed positions of the sound outlet opening. Detailed descriptions

[0006] The present application is described in further detail below with reference to extensive embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are identified by corresponding similar reference numerals. Numerous details are described in the following embodiments to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted or replaced by other elements, materials, or processes under different circumstances. In certain cases, some relevant processes of the present application are not presented or described in the description. This is to prevent the core aspects of the present application from being obscured by excessive descriptions.Furthermore, a detailed description of these relevant processes is not necessary for experts in this field, as they can fully understand these relevant processes based on the explanation in the description and general technical knowledge in this field.

[0007] Furthermore, the features, processes, or properties described in the description can be combined in any suitable way to form different embodiments. At the same time, the individual steps or actions in the description of a method can be modified or adapted with respect to the sequence in a manner obvious to those skilled in the art. Therefore, the individual sequences shown in the description and the accompanying drawings serve only to clarify a particular embodiment and do not imply a mandatory sequence. Unless otherwise specified, none of the sequences need be followed.

[0008] The numbers assigned to the components herein, such as "first", "second", etc., serve only to distinguish the described objects and have no sequential or technical meaning. Unless otherwise stated, the terms "connection" and "coupling" used in this application include both direct and indirect connections (couplings).

[0009] See Fig. 1. The present application provides an ear clip-on headphone 100 comprising a sound-generating part 1, which is used for insertion into the concha of a wearer, a contact part 2, which is used for resting against the back of the wearer's ear, and an ear hook 3, which connects the sound-generating part 1 and the contact part 2. The sound-generating part 1 is a sound-reproducing device that serves to convert electrical signals into acoustic signals and reproduce these acoustic signals for the wearer. The contact part 2 and the sound-generating part 1 assume a clamping position so that the entire headphone is clamped to the helix of a user and worn. In particular, the sound-generating part 1 can rest against the inner wall of the concha, and the contact part 2 can rest against the back of the ear, so that the headphone is immediately clamped to the helix of the user's ear and worn.In some embodiments, component 2 can serve as a battery compartment for mounting a battery or other component. Of course, component 2 can also be used without a battery compartment. In this case, the battery is instead mounted in the sound-generating component 1.

[0010] See Fig. 2. In one embodiment, the sound-generating part 1 comprises a first housing 11 and a sound-generating arrangement 12. The sound-generating arrangement 12 is a module that can convert electrical signals into acoustic signals. It is typically a loudspeaker. The sound-generating arrangement 12 may contain one or more than two loudspeakers.

[0011] See Fig. 2. The first housing 11 comprises a first rigid housing 111 connected to the ear hook 3, a second rigid housing 112 oriented towards the wearer's concha when worn, and a first flexible body 113 used for contact with the wearer's concha. The rigid material can be plastic, metal, or other materials suitable for supporting the headphone housing to provide better support and stability for the internal structure of the first housing 11 (e.g., the sound-generating assembly 12). The first rigid housing 111 and the second rigid housing 112 enclose a first receiving chamber 110, with the sound-generating assembly 12 located within the first receiving chamber 110.The first housing 11 has a sound outlet opening 114, through which the sound waves emitted from the sound-generating arrangement 12 can be transmitted to the support. The first flexible body 113 covers the outer wall of the second rigid housing 112. The first flexible body 113 can be made of silicone or another skin-friendly flexible material to improve comfort when the sound-generating part 1 comes into contact with the support.

[0012] The first hard housing 111 and the second hard housing 112 provide improved support for the internal structure. When worn, the second hard housing 112 is typically oriented towards the wearer's concha. In this embodiment, the outer wall of the second hard housing 112 is covered by the first flexible body 113 to reduce the possibility of the second hard housing 112 coming into direct contact with the wearer's skin, thus improving the wearing comfort of the headphones.

[0013] At the same time, the first flexible body 113 in the first housing 11 primarily covers the second rigid housing 112, so that the outer structure and the interior of the first rigid housing 111 are essentially unaffected, thus ensuring the utilization of the interior space of the first rigid housing 111. In particular, the outer wall of the second rigid housing 112 is encased by the first flexible body 113, so that the second rigid housing 112 has a two-layer wall thickness. The outer wall of the first rigid housing 111 is not encased by the first flexible body 113 and is exposed. Alternatively, the first flexible body 113 extends from the outside of the second rigid housing 112 to the outside of the first rigid housing 111. In this case, only a portion of the first rigid housing 111, located near the second rigid housing 112, is encased by the first flexible body 113, while the remaining portion is exposed.Therefore, the first hard enclosure 111 requires only a single-layer wall thickness, so that the first hard enclosure 111 occupies a small volume of the first recording chamber 110, leaving plenty of space for the sound-generating arrangement 12. This allows a sound-generating arrangement 12 with a larger transducer to be inserted to achieve a better acoustic effect.

[0014] See Fig. 2 and Fig. 3. In some embodiments, a plane containing an outermost annular line of the end face of the first flexible body 113 is a first reference plane A1. On a cross-sectional surface perpendicular to the first reference plane A1 and passing through its center (the center of the first reference plane A1 being the center of the outermost annular line of the end face of the first flexible body 113), the area of ​​the second rigid housing 112 covered by the first flexible body 113 is greater than or equal to 80%, for example 80%, 85%, 90%, 95%, or 100%, of the length of a curved segment of the second rigid housing 112 (here, relative to the outer contour line of the second rigid housing 112). This ensures that the first flexible body 113 can cover a sufficiently large area of ​​the second rigid housing 112 to reduce the possibility of...to rule out the possibility that the second hard housing 112 comes into direct contact with the carrier.

[0015] See Fig. 2 and Fig. 13. In some embodiments, an ear hook symmetry plane A2 of the ear hook 3 (in Fig. (14) the outermost ring line of the end surface of the first flexible body 113 at two intersection points. A cross-section perpendicular to the ear-hook symmetry plane A2 and passing through these two intersection points may also be the first reference plane A1. On a cross-section perpendicular to the first reference plane A1 and passing through the midpoint of the outermost ring line of the end surface of the first flexible body 113, the area of ​​the second hard housing 112 covered by the first flexible body 113 is greater than or equal to 80%, for example 80%, 85%, 90%, 95%, or 100%, of the length of the curved segment of the second hard housing 112 (here, based on the outer contour line of the second hard housing 112).In this embodiment, the proportion of the first flexible body 113 to the second rigid housing 112 is defined from a different perspective, such that the first flexible body 113 can cover a sufficiently large area of ​​the second rigid housing 112 to reduce or eliminate the possibility of the second rigid housing 112 coming into direct contact with the support. The earhook symmetry plane A2 is a plane of the earhook 3 that is symmetrical on the left and right sides with respect to its extension along the length of the earhook. If the earhook 3 has an irregular, asymmetrical structure, the differences in the earhook 3 between the two sides of the earhook symmetry plane A2 should be minimal under all division methods.For example, the earhook symmetry plane A2 can be defined by the center of the first reference plane A1 (the center of the first reference plane A1 is the center of the outermost ring line of the end surface of the first flexible body 113), the center of a cross-sectional surface of the attachment part 2 that runs perpendicular to the longitudinal direction of the attachment part (this longitudinal direction is described below), and the midpoint in the longitudinal direction of the earhook 3.

[0016] See Fig. 3. In some embodiments, it is provided that on a first predetermined cross-sectional surface, the area of ​​the second hard housing 112 covered by the first flexible body 113 is greater than or equal to 80%, for example 80%, 85%, 90%, 95%, or 100%, of the length of the curved segment of the second hard housing 112 (here, based on the outer contour line of the second hard housing 112). In the description of the present application, unless otherwise specified, the “first predetermined cross-sectional surface” may be a cross-sectional surface that is perpendicular to the first reference plane A1 and passes through the center of the outermost annular line of the end face of the first flexible body 113. Alternatively, it may be the ear-hook symmetry plane A2. The “first reference plane A1” may be a plane in which the outermost annular line of the end face of the first flexible body 113 is located.Furthermore, the ear hook symmetry plane A2 (in . Fig. (14) the outermost ring line of the end surface of the first flexible body 113 at two intersection points. The “first reference plane A1” can also be a cross-sectional surface that runs perpendicular to the ear-hook symmetry plane A2 and passes through these two intersection points. In this way, the first flexible body 113 can cover a sufficiently large area of ​​the second rigid housing 112 to reduce or eliminate the possibility of the second rigid housing 112 coming into direct contact with the wearer.

[0017] See Fig. 4 to 7. In some embodiments, the ends of the second hard housing 112 and the ends of the first hard housing 111 are joined together. This joining of the ends of the second hard housing 112 and the ends of the first hard housing 111 results in a reliable and space-saving fastening. This joining also simplifies assembly and reduces the number of assembly steps.

[0018] In particular, the production of headphones requires the injection molding of the first flexible body 113 onto the base of the second rigid housing 112 to ensure a more secure connection between the first flexible body 113 (usually made of silicone) and the second rigid housing 112. If the first flexible body 113 has a considerable length extending across the joint between the first and second rigid housings 112, the manufacturing process typically requires the speaker to be inserted into the first housing and the assembly completed before injection molding. In this case, the internal components within the first housing are exposed to high temperatures during the injection molding process, which negatively impacts the proportion of high-quality products.By positioning most of the first flexible body 113 on the second rigid housing 112, injection molding with silicone can be performed on the second rigid housing 112 before assembly. This not only simplifies the manufacturing process but also prevents damage to the loudspeaker from injection molding after assembly.

[0019] See Fig. 3. In some embodiments, all parts of the outer wall of the second rigid housing 112 that are not covered by the first rigid housing 111 are covered by the first flexible body 113. Since the areas of the first housing 11 that come into contact with the wearer are generally concentrated on the second rigid housing 112, such a structure ensures that the second rigid housing 112 has no exposed areas. Thus, the wearer does not come into direct contact with the second rigid housing 112, further improving wearing comfort.

[0020] See Fig. 5 and Fig. 6. In some embodiments, the first flexible body 113 extends from the outside of the second rigid housing 112 to the outside of the first rigid housing 111 and covers part of the outer wall of the first rigid housing 111. The junction between the first rigid housing 111 and the second rigid housing 112 typically represents a stress concentration zone. Because part of the outer wall of the first rigid housing 111 is encased by the first flexible body 113, and thus the first flexible body 113 is simultaneously attached to both the first rigid housing 111 and the second rigid housing 112, the strength of the first rigid housing 111 and the second rigid housing 112 is further increased, and a degree of protection for the stress concentration zone is also achieved.Furthermore, the first flexible body 113 can also enclose the portion of the first hard housing 111 located near the second hard housing 112, thus preventing direct contact with the second hard housing 112 when the wearer touches this area. This improves comfort. Additionally, the first flexible body 113 can cover the junction between the first hard housing 111 and the second hard housing 112 to enhance the effectiveness of the waterproof seal.

[0021] See Fig. 4 and Fig. 7. In some embodiments, the outer wall of the first hard housing 111 is not covered by the first flexible body 113, so that the interior of the first hard housing 111 is not displaced by the first flexible body 113 and thus a larger interior of the first hard housing 111 is ensured.

[0022] See Fig. 5. In some embodiments, an end surface 113a of the first flexible body 113 extends to an end surface 111a of the first rigid housing 111, i.e., the end surface 113a of the first flexible body 113 abuts the end surface 111a of the first rigid housing 111. Thanks to its flexible deformability, the first flexible body 113 can achieve a good watertight seal with the end surface 111a of the first rigid housing 111.

[0023] In some embodiments, a gap is provided between the end surface 113a of the first flexible body 113 and the end surface 111a of the first hard housing 111 to provide a deformation space for the first flexible body 113 when the first flexible body 113 is subjected to slight deformation under pressure.

[0024] See Fig. 4. In some embodiments, the outermost annular line of the end surface 113a of the first flexible body 113 is flush with the outermost annular line of the end surface 113a of the first flexible body 113 in the inside-outside direction. An inside refers to a side of the first housing 11 on which the first receiving chamber 110 is located, while an outside refers to a side of the first housing 11 that faces away from the first receiving chamber 110.

[0025] In some embodiments, a gap exists between the end surface 111a of the first rigid housing 111 and an end surface 112a of the second rigid housing 112. A portion 113b of the first flexible body 113 extends into this gap and is clamped and secured by the end surface 111a of the first rigid housing 111 and the end surface 112a of the second rigid housing 112. In this embodiment, the first flexible body 113 can be adhered more firmly to the second rigid housing 112, achieving a more stable interaction than would be possible with adhesive bonding alone. Simultaneously, the first flexible body 113 not only provides a more pleasant tactile experience, but the clamping action between the first rigid housing 111 and the second rigid housing 112 also results in a more effective watertight seal.

[0026] In the embodiments described above, the end surface 111a of the first hard housing 111 and the end surface 112a of the second hard housing 112 form a pair of mating surfaces, representing one or at least two of the following types: flat surface, inclined surface, stepped surface, folded surface, and corrugated surface. This ensures better joining of the first hard housing 111 with the second hard housing 112 and guarantees a watertight seal. The mating end surfaces of the first hard housing 111 and the second hard housing 112 facilitate the adhesive bonding and fastening of the contact surfaces. Furthermore, a more complex design of the contact surfaces, such as stepped surfaces, increases the surface area for the adhesive bond and thus further enhances the strength. Combining multiple end surface configurations also results in a more robust, multidirectional adhesive structure.

[0027] Furthermore, in some embodiments, the sound generation arrangement 12 is mounted on the second hard housing 112, with one end of the sound generation arrangement 12 facing the first hard housing 111 projecting beyond the second hard housing 112, as shown in Fig. Figure 3 illustrates this embodiment. In this example, the split structure consisting of the first hard housing 111 and the second hard housing 112 is utilized. First, the sound generation assembly 12 is mounted on the second hard housing 112. Then, the second hard housing 112, together with its mounted components, is attached to the first hard housing 111. This reduces machining complexity, increases machining efficiency, and raises the proportion of high-quality products.

[0028] Furthermore, it is provided that the sound outlet opening 114 is located in the first hard housing 111 (as in Fig. 3 shown) or in the second rigid housing 112 or the first flexible body 113 (as shown in Fig. 8) can be provided. Alternatively, the sound outlet opening can also be provided by assembling the first hard housing 111 with the second hard housing 112 (as shown in Fig. 9 shown) are formed.

[0029] In some embodiments, the sound outlet opening 114 can be provided in a portion of the first rigid housing 111 that is not enclosed by the first flexible body 113. This eliminates the need for the sound outlet opening 114 to simultaneously penetrate both the first rigid housing 111 and the second rigid housing 112. This avoids surface irregularities at the sound outlet opening 114, which could otherwise interfere with the installation of a sound-regulating mesh and a steel mesh. Furthermore, by forming the sound outlet opening in the first rigid housing 111, no hole needs to be drilled in the first flexible body 113. It also eliminates the need to consider how the first flexible body 113 affects the sound outlet opening 114. This reduces design and production costs.

[0030] Since a larger internal receiving space can be formed in the first hard housing 111, a mounting bracket for the diaphragm can also be provided with a positioning shoulder at the sound outlet opening 114 without significantly increasing the external dimensions of the first housing 11. This improves the openness of the ear canal and thus both the safety and comfort when using the ear clip headphones.

[0031] See Fig. 3. In some embodiments, a central axis A3 of the sound outlet 114 and the first reference plane A1 enclose an angle α1 of 3° to 9°. For example, the angle α1 can be 3°, 5°, 7°, or 9°. This arrangement ensures that the sound outlet 114 does not extend across both housings and is simultaneously closer to the ear opening, thereby increasing the perceived loudness of the sound.

[0032] See Fig. 3. In some embodiments, the distance D5 between the end of the sound outlet opening 114 facing the second hard housing 112 and the first reference plane A1 is 1 mm to 3 mm, for example 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm. This arrangement ensures that the sound outlet opening 114 does not extend across both housings and is simultaneously located closer to the ear opening. Furthermore, it creates space for the adhesive path between a sound outlet mesh and the first hard housing 111, as well as between the first hard housing 111 and a mounting bracket 123 for the diaphragm of a loudspeaker.

[0033] See Fig. 3. In some embodiments, the first hard housing 111 has a region that, when worn, is oriented towards the ear opening of the wearer. The sound outlet opening 114 is located at least partially within this region in order to direct the sound propagation as far as possible towards the ear canal. This ensures that the sound from the sound outlet opening 114 reaches the wearer's ear opening more quickly and accurately, resulting in improved hearing and volume of the sound and enhancing the overall sound quality of the headphones.

[0034] See Fig. 3. In some embodiments, the sound-generating arrangement 12 includes a diaphragm 124. The mounting plane of the outer edge of the diaphragm 124 (as in Fig. As shown in Figure 3, the edge of the diaphragm 124 rests against the mounting support 123, with the mounting plane of the outer edge of the diaphragm 124 being a plane in which the contact point is located, and the first reference plane A1 enclosing an angle of 3° to 9°. For example, this angle can be 3°, 5°, 7°, or 9°. In this way, the first hard enclosure 111 and the second hard enclosure 112 can be mounted first, before the loudspeaker is mounted with the first hard enclosure 111. The individual loudspeakers do not extend across the mold parting line between the first hard enclosure 111 and the second hard enclosure 112, which facilitates assembly. This arrangement also allows the contact point between the cavity conchae and the first flexible body 113 to be located near the center, provided that the sound outlet opening 114 is oriented towards the ear opening.This allows for adaptation to multiple people and reduces the likelihood of contact between the cavum conchae and the hard shells.

[0035] See Fig. 19. In some embodiments, the ear hook 3 has the ear hook symmetry plane A2 along its length, and the sound-generating assembly 12 has the diaphragm 124, wherein the mounting plane of the outer edge of the diaphragm 124 and the ear hook symmetry plane A2 form an angle of less than 10°. This arrangement allows a wedge-shaped space to be formed by a curve created by cutting the first housing 11 peripherally at the loudspeaker and the cavity conchae. If the sound outlet 114 is formed along this curve, the sound outlet 114 can form a horn structure with the cavity conchae. By having the cavity conchae act as a reflective wall surface, a horn effect can be created, thereby increasing the perceived loudness of the sound.

[0036] The sound outlet 114 can be located in the second rigid housing 112 and the first flexible body 113. This allows the sound outlet 114 to be positioned closer to the ear opening, thus improving hearing performance. Furthermore, the sound outlet 114 does not need to extend across both the first rigid housing 111 and the second rigid housing 112 simultaneously.

[0037] The sound outlet opening 114 can be elongated and strip-shaped, with its longitudinal direction running parallel or nearly parallel to the earhook symmetry plane A2. The central axis A3 of the sound outlet opening 114 and the first reference plane A1 can form an angle α11 of 40° to 80°. For example, α11 can be 40°, 50°, 60°, 70°, or 80°. In this way, the sound outlet opening 114 can form a horn structure with the cavum conchae. By using the cavum conchae as a reflective surface, a horn effect can be created, thereby increasing the loudness of the perceived sound. The term "parallel or nearly parallel" as described in this application refers to the fact that the longitudinal direction of the sound outlet opening 114 runs parallel to the earhook symmetry plane A2, with a tolerance of plus / minus 15° being permissible.

[0038] The sound outlet 114 can be elongated and strip-shaped, with its length running parallel or nearly parallel to the earhook symmetry plane A2. The distance between an end of the sound outlet facing the first hard housing and the first reference plane can be 1 mm to 4 mm, for example, 1 mm, 2 mm, 2.5 mm, 3 mm, or 4 mm. This allows the sound outlet 114 to be positioned closer to the ear opening, which enhances the horn effect. It also prevents the sound outlet 114 from extending across both housings.

[0039] See Fig. 3. In some embodiments, a section with the largest radius of the sound-generating assembly 12 is located within the first rigid housing 111. Since the first rigid housing 111 is not provided with a first flexible body 113, or is only partially provided with the first flexible body 113, the space within the first rigid housing 111 is larger than the space within the second rigid housing 112. By arranging a section 125 with the largest radius of the sound-generating assembly 12 within the first rigid housing 111, a sound-generating assembly 12 with a larger transducer can be selected to achieve better sound quality. In this way, the space of the inner chamber can be utilized more effectively compared to the arrangement where the section 125 with the largest radius of the sound-generating assembly 12 is opposite the first flexible body 113.The radius of the sound generation arrangement 12 refers to the radius formed with the radial direction of the diaphragm in the loudspeaker as a reference.

[0040] See Fig. 3. In some embodiments, the sound-generating arrangement 12 has a mounting bracket 123. On one side of this mounting bracket 123, a projecting structure (i.e., the structure designated 125) is provided, which has a sound transmission channel that communicates with the loudspeaker in the sound-generating arrangement 12. Typically, this sound transmission channel must be at least partially aligned with the sound outlet opening 114. Therefore, in this embodiment, the section 125 with the largest radius of the sound-generating arrangement 12 corresponds to the position of this projecting structure. By arranging this projecting structure within the first hard enclosure 111, the space within the first hard enclosure 111 is utilized, allowing a sound-generating arrangement 12 with a larger transducer to be provided.

[0041] See Fig. 3. In some embodiments, no first flexible body 113 is arranged within the area to which section 125 with the largest radius of the sound-generating arrangement 12 points in the radial direction of the sound-generating arrangement 12. This prevents the interior space of the first rigid housing 111 from being displaced by the cover of the first flexible body 113. This ensures that a larger interior space of the first rigid housing 111 is available.

[0042] See Fig. 3. In some embodiments, the first hard housing 111 has a groove in which the section 125 with the largest radius of the sound-generating assembly 12 is received. By providing a groove in the inner wall of the first hard housing 111, the interior space of the first hard housing 111 can be enlarged to accommodate a larger sound-generating assembly 12.

[0043] In some embodiments, the groove can be used to receive the positioning step on the mounting bracket, the positioning step also serving as a sound outlet channel on the mounting bracket to direct the sound towards the sound outlet opening 114.

[0044] Furthermore, it is provided that the sound generation arrangement 12 can include one loudspeaker or more than two loudspeakers. Based on the appropriate use of the interior space of the first hard enclosure 111, the arrangement of the sound generation arrangement 12 can vary.

[0045] See Fig. 3. In some embodiments, a magnetically conductive cover 122 of at least one loudspeaker is located inside the second hard housing 112 and is oriented towards the second hard housing 112. The magnetically conductive cover has an end surface 1221 which is oriented towards the second hard housing 112, the end surface 1221 being a flat surface.

[0046] Furthermore, in some embodiments, it is provided that the plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1, as in Fig. Figure 3 shows that on a cross-sectional surface perpendicular to the first reference plane A1 and passing through the center of the end face 112a of the magnetically conductive cover 122 oriented towards the second hard housing 112, the radius of curvature of a region on the second hard housing 112 (here referred to the outer contour line of the second hard housing 112) opposite the end face 1221 of the magnetically conductive cover 122 is larger than the radius of curvature of at least part of other regions located on either side of this region. In this way, the curvature of this region of the second hard housing 112 can be reduced, thus providing more space for the corresponding section of the outer first flexible body 113. This allows for an increase in the thickness of the first flexible body 113 at this point without increasing the thickness of the entire first housing 11. Since this region is located near the contact center (i.e.,The central position on the first flexible body 113, where it comes into contact with the wearer, can be improved by adjusting the thickness to better suit the wearer.

[0047] See Fig. 3. In some embodiments, the radius of curvature of the area on the second hard housing 112 (here, with respect to the outer contour line of the second hard housing 112), which is opposite the end face 1221 of the magnetically conductive cover 122, is larger than the radius of curvature of at least part of other areas located on both sides of this area. In the description of the present application, unless otherwise specified, the “second predetermined cutting surface” may be a cutting surface that is perpendicular to the first reference plane A1 and passes through the center of the end face 112a of the magnetically conductive cover 122 oriented towards the second hard housing 112. Alternatively, it may be the ear hook symmetry plane A2.In this way, the curvature of the second rigid housing 112 can be reduced at this point, thus providing more space for the outer first flexible body 113. This allows the thickness of the first flexible body 113 to be increased at this point without increasing the thickness of the entire first housing 11.

[0048] See Fig. 3. In some embodiments, the plane in which the outermost annular line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional surface perpendicular to the first reference plane A1 and passing through the center of the end surface 112a of the magnetically conductive cover 122 facing the second hard housing 112, the radius of curvature R2 of a region on the first flexible body 113 (here referred to the outer contour line of the first flexible body 113) opposite the magnetically conductive cover 122 is 6 mm to 18 mm. For example, R2 can be 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, or 18 mm. Since this region is located near the contact center (i.e.,The contact area and comfort can be increased by adjusting the radius of curvature (the central position on the first flexible body 113 where it comes into contact with the wearer).

[0049] See Fig. 3. In some embodiments, the radius of curvature R2 of the area on the first flexible body 113 (here referred to the outer contour line of the first flexible body 113), which is opposite the magnetically conductive cover 122, is 6 mm to 18 mm on the second predetermined cut surface. For example, R2 can be 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, or 18 mm. Since this area is located near the center of the contact, setting a larger radius of curvature increases the contact area and improves comfort.

[0050] See Fig. 3. In some embodiments, the plane in which the outermost ring line of the end face 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional surface perpendicular to the first reference plane A1 and passing through the center of the end face 112a of the magnetically conductive cover 122 facing the second rigid housing 112, the thickness of the area on the first flexible body 113 opposite the end face of the magnetically conductive cover 122 is 0.8 mm to 2.0 mm. For example, this thickness can be 0.8 mm, 1.0 mm, 1.5 mm, or 2 mm. Since this area is located near the center of contact, a thicker silicone can improve comfort.

[0051] See Fig. 3. In some embodiments, the thickness of the area on the first flexible body 113, which faces the end face of the magnetically conductive cover 122, is 0.8 mm to 2 mm on the second predetermined cut surface. For example, this thickness can be 0.8 mm, 1.0 mm, 1.5 mm, or 2.0 mm. Since this area is located near the center of contact, a thicker silicone can improve wearing comfort.

[0052] See Fig. 19. In some embodiments, the radius of curvature of a predetermined region C1 on the outer contour line of the first flexible body 113 is larger than the radius of curvature of at least part of other regions located on both sides of this region on the first predetermined cross-sectional surface. The predetermined region C1 is located near a contact center C2 where the first flexible body 113 comes into contact with the cavum conchae (i.e., the central position on the first flexible body 113 where it comes into contact with the support, as shown in Figure 1). Fig. Figure 19 shows that in some embodiments the distance between the contact center C2 and the end of the first flexible body 113 located near the ear hook 3 is approximately one-third of the length of the outer contour line of the first flexible body 113. Since the predetermined area C1 is located near the contact center C2, the contact area with the conchal cavity can be increased and wearing comfort improved by setting a larger radius of curvature for the predetermined area C1.

[0053] The radius of curvature of the predetermined area C1 can range from 6 mm to 18 mm. For example, this radius of curvature can be 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, or 18 mm. Since this area is located near the contact center C2 (i.e., the central position on the first flexible body 113 where it comes into contact with the support), setting a larger radius of curvature can increase the contact area and improve comfort.

[0054] The thickness of the first flexible body 113 within the predetermined range C1 can be from 0.2 mm to 1 mm. For example, this thickness can be 0.2 mm, 0.5 mm, 0.8 mm, or 1.0 mm. By adjusting the thickness of the first flexible body 113 within the predetermined range C1, wearing comfort can be ensured, provided that an increase in the overall dimensions of the first housing is avoided.

[0055] See Fig. 3. In some embodiments, the sound-generating arrangement 12 comprises a central mounting bracket 123 (i.e., a specific configuration of a mounting bracket 123 for two loudspeakers) and two loudspeakers. The two loudspeakers are mounted together on the central mounting bracket 123, with a sound transmission channel 1231 formed between the diaphragms 124 of the two loudspeakers. The central axis A3 of the sound outlet 114 passes through the sound transmission channel 1231. By using two loudspeakers, the area of ​​the diaphragm 124 is increased for the same radial area, thus increasing the BL value of the loudspeaker for the same volume. This allows for higher acoustic efficiency. Furthermore, the central axis A3 of the sound outlet 114 passes through the sound transmission channel 1231, providing a more direct and unobstructed path for the sound from the first receiving chamber 110.

[0056] See Fig. 3. In some embodiments, the sound transmission channel 1231 serves as a common front chamber for the two loudspeakers. In this embodiment, the structure of the common front chamber allows the volume occupied by the two loudspeakers to be further reduced.

[0057] In some embodiments, the sound transmission channel 1231 serves as a common rear chamber for the two loudspeakers. A waterproof, air-permeable membrane is arranged at the sound outlet opening 114 and / or the sound transmission channel 1231. The structure of the common rear chamber further reduces the volume occupied by the two loudspeakers. By arranging the waterproof, air-permeable membrane at the sound outlet opening 114 and / or the sound transmission channel 1231, water and dust resistance can be ensured with minimal impairment of sound quality, thus improving the reliability of the headphones.

[0058] See Fig. 3. In some embodiments, the plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional plane perpendicular to the first reference plane A1 and passing through the center of the mounting support 123 (i.e., the geometric center of the mounting support 123), the connecting lines between the center of the mounting support 123 and the two ends of the first flexible body 113 form an angle α2 of 130° to 160°. For example, the angle α2 can be 130°, 140°, 150°, or 160°. By adjusting the coverage area of ​​the first flexible body 113 in this way, the contact point between the cavum conchae and the silicone segment can be located closer to the center. This can reduce the likelihood of the human ear coming into contact with the hard housing segment.

[0059] See Fig. 3. In some embodiments, on a cross-sectional surface perpendicular to the first reference plane A1 and passing through the center of the mounting support 123 (i.e., the geometric center of the mounting support 123), the connecting lines between the center of the mounting support 123 and the two ends of the first flexible body 113 enclose an angle α2 of 130° to 160°, or an angle α2 greater than 160° and less than or equal to 170°. For example, the angle α2 may be 130°, 140°, 150°, 160°, or 170°. By adjusting the coverage area of ​​the first flexible body 113 in this way, the contact point between the cavum conchae and the silicone segment can be located closer to the center. This further reduces the likelihood of the human ear coming into contact with the hard housing segment.

[0060] See Fig. 10. In some embodiments, the sound-generating arrangement 12 comprises a central mounting support 123 (i.e., a specific mounting support structure used for two loudspeakers) and two loudspeakers. The two loudspeakers are mounted together on the central mounting support 123. A connecting line A4 between the centers of the magnetically conductive covers 122 of both loudspeakers extends continuously through the first rigid enclosure 111. Alternatively, the connecting line A4 between the centers of the magnetically conductive covers 122 of both loudspeakers does not extend through the second rigid enclosure 112 and the first flexible body 113. In this embodiment, the center of the entire sound-generating arrangement 12 can be located closer to the first rigid enclosure 111, thus making better use of the interior space of the first rigid enclosure 111.

[0061] See Fig. 8. In some embodiments, both a side of the sound-generating arrangement 12, on which the widest point is located in the diameter direction, and a side on which the widest point is located in the axial direction are arranged opposite the first hard housing 111.

[0062] See Fig. 3. In some embodiments, both sides of the sound-generating arrangement 12, where the widest point in the axial direction is located, are arranged opposite the first hard housing 111. Since the space inside the first hard housing 111 is larger than the space inside the second hard housing 112, by arranging the two sides of the sound-generating arrangement 12, where the widest point in the axial direction is located, opposite the first hard housing 111, a sound-generating arrangement 12 with a larger transducer can be selected to achieve better sound quality.

[0063] See Fig. 8. In some embodiments, the sound-generating arrangement 12 comprises a mounting bracket 123 and at least one loudspeaker mounted on the mounting bracket 123. The distance between a center 1232 of a side face of the mounting bracket 123, facing away from the magnetically conductive cover 122, and the first reference plane A1 is 0.4 mm to 2 mm. For example, this distance may be 0.4 mm, 0.8 mm, 1.2 mm, 1.5 mm, or 2 mm. The first reference plane A1 is a plane in which the outermost ring line of the end face 113a of the first flexible body 113 is located. Alternatively, the earhook symmetry plane A2 of the earhook 3 intersects the outermost ring line of the end face 113a of the first flexible body 113 at two points of intersection. The first reference plane A1 is a plane that runs perpendicular to the ear-hook symmetry plane A2 and passes through these two points of intersection.

[0064] In some embodiments, the sound-generating arrangement 12 comprises a mounting bracket 123 and at least one loudspeaker mounted on the mounting bracket 123. The distance between the center 1232 of the side face of the mounting bracket 123, which faces away from the magnetically conductive cover 122, and the first reference plane A1 is 0.4 mm to 2 mm, or this distance is greater than 2 mm and less than or equal to 3 mm. For example, this distance can be 0.4 mm, 0.8 mm, 1.2 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm.

[0065] By adjusting the position of the sound generation assembly within the first housing 11, a larger portion of the sound generation assembly's volume can be distributed at an angle towards the first hard housing 111. This allows the relatively generous interior space within the first hard housing 111 to be utilized, enabling the first housing 11 to accommodate a sound generation unit with a larger volume.

[0066] As in Fig. As shown in Figure 19, in some embodiments, the ear hook 3 has the ear hook symmetry plane A2 in its longitudinal direction. This ear hook symmetry plane A2 intersects the outermost ring line of the end face of the first flexible body 113 at two points of intersection. On the ear hook symmetry plane A2, the ear hook 3 has an inner contour line that has a first reference point O1 in the region near the helix of the support, the inner contour line having a local maximum curvature at the first reference point O1. The connecting lines between the first reference point O1 and the two points of intersection enclose an angle α12 that is less than or equal to 15°. For example, α12 can be 3°, 5°, 8°, 11°, or 15°.

[0067] As in Fig. As shown in Figure 19, in some embodiments the ear hook 3 has the ear hook symmetry plane A2 in its longitudinal direction. This ear hook symmetry plane A2 intersects the outermost ring line of the end face of the first flexible body 113 at two points of intersection. On the ear hook symmetry plane A2, a second reference point O2 is provided on the outer wall of the sound-generating part 1, with the distance between the second reference point O2 and the outer wall of the attachment part 2 being shortest. The connecting lines between the second reference point O2 and the two points of intersection form an angle α13, which lies between 85° and 115°. For example, α13 can be 85°, 90°, 100°, 105°, or 115°.

[0068] In some embodiments, the sound-generating part 1 and the attachment part 2 are arranged at a distance from each other on the earhook symmetry plane A2 in a neutral state of the headphones (i.e., without the application of an external force). In this case, the second reference point O2 can be an endpoint of the shortest connecting line between the sound-generating part 1 and the attachment part 2, located on the sound-generating part 1. In some embodiments, the sound-generating part 1 and the attachment part 2 are in contact with each other on the earhook symmetry plane A2 in the neutral state of the headphones (i.e., without the application of an external force). In this case, the second reference point O2 can be the midpoint of an arc segment of the attachment area of ​​the sound-generating part 1 on the attachment part 2, which is formed on the earhook symmetry plane A2.By adjusting the enveloping angle of the first flexible body 113, it is possible to ensure that all contact areas between the ear of most people or standard head models and the first housing are covered by the first flexible body 113. In this way, comfort is guaranteed while simultaneously creating more space for the first hard housing 111, so that the volume of the inner chamber is not excessively occupied by the silicone area.

[0069] See Fig. 10. In some embodiments, the tangent of the ear hook 3 and the first reference plane A1 enclose an angle 02 of 18° to 35°. The first reference plane A1 is a plane in which the outermost ring line of the end surface 113a of the first flexible body 113 lies. Alternatively, the ear hook symmetry plane A2 of the ear hook 3 intersects the outermost ring line of the end surface 113a of the first flexible body 113 at two points of intersection. The first reference plane A1 is a plane that is perpendicular to the ear hook symmetry plane A2 and passes through these two points of intersection.

[0070] By adjusting the positional relationship of the connection between the ear hook 3 and the first housing 11, the extension direction of the ear hook 3 can run almost parallel to the extension direction of the helix when the headphones are worn. This ensures that the ear hook 3 exerts less or no pressure on the helix, thus improving the wearing comfort of the ear clip headphones.

[0071] See Fig. 10. In some embodiments, the distance D10 between the tangent of the ear hook 3 and the first reference plane A1 is 6 mm to 8 mm. The first reference plane A1 is a plane in which the outermost ring line of the end surface 113a of the first flexible body 113 lies. Alternatively, the ear hook symmetry plane A2 of the ear hook 3 intersects the outermost ring line of the end surface 113a of the first flexible body 113 at two points of intersection. The first reference plane A1 is a plane that is perpendicular to the ear hook symmetry plane A2 and passes through these two points of intersection.

[0072] See Fig. 3. In some embodiments, the plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional surface that is perpendicular to the first reference plane A1 and passes through the center of the first reference plane A1, the length of the first flexible body 113 (here referred to as the length of the outer contour line of the first flexible body 113) is 16 mm to 25 mm. For example, this length can be 16 mm, 19 mm, 21 mm, 23 mm, or 25 mm.

[0073] See Fig. 3. In some embodiments, the length of the outer contour line of the first flexible body on the first predetermined cutting surface is between 16 mm and 25 mm. For example, this length can be 16 mm, 19 mm, 21 mm, 23 mm, or 25 mm.

[0074] Such an adjustment of the length of the outer contour line of the first flexible body 113 can help to prevent direct contact between the hard shell and the skin when worn. In this way, wearing comfort is ensured and at the same time more space is created for the first hard shell 111, so that the volume of the inner chamber is not excessively taken up by the silicone area.

[0075] See Fig. 11. In some embodiments, the plane in which the outermost ring line of the end face 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional plane perpendicular to the first reference plane A1 and passing through its midpoint, an end of the first flexible body 113 closer to the ear hook 3 is a first end 113a, and an end farther from the ear hook 3 is a second end 113b. In a region D8 of the first flexible body 113 located at one-third of the distance from the end face of the second end 113b, the thickness of the first flexible body in the normal direction to the outer wall is 0.8 mm to 2.0 mm. For example, this thickness may be 0.8 mm, 1.2 mm, 1.5 mm, 1.8 mm, or 2.0 mm.

[0076] See Fig. 11. In some embodiments, on the first predetermined cross-sectional surface, the end of the first flexible body 113 that is closer to the ear hook 3 is designated as a first end 113a, and the end that is farther from the ear hook 3 is designated as a second end 113b. In the region D8 of the first flexible body 113, which is located at one-third of the distance from the end face of the second end 113b, the thickness of the first flexible body in the normal direction to the outer wall is 0.8 mm to 2.0 mm. For example, this thickness can be 0.8 mm, 1.2 mm, 1.5 mm, 1.8 mm, or 2.0 mm.

[0077] Provided that the first housing 11 is approximately spherical, the angle between the tangent at the connection point of the ear hook with the first housing 11 and the first reference plane is between 18° and 35°, the distance between the tangent of the ear hook and the first reference plane is 6 mm to 8 mm, and the length of the first flexible body is 16 mm to 25 mm, then, in a standard head model, the central contact area between the first housing 11 and the head model is located in the region of the first flexible body that lies at one-third of the distance from the end face of the second end. By adjusting the thickness of the first flexible body at this point, the central contact area can be positioned close to the midpoint of the first flexible body with respect to its length.This reduces the likelihood of the human ear coming into contact with the hard casing, and at the same time reduces the volume of the first casing 11 to ensure the listening effect of the open-ear headphones.

[0078] See Fig. 19. In some embodiments, a central contact area C2 between the first housing 11 and the head model is located in a region of the first flexible body 113 that is situated at one-third of the distance from the end face of the first end 113a. In this case, the thickness of the first flexible body in the normal direction to its outer wall on the first predetermined cross-sectional surface and in the region of the first flexible body 113 that is situated at one-third of the distance from the end face of the first end 113a is 0.8 mm to 2.0 mm. For example, this thickness can be 0.8 mm, 1.2 mm, 1.5 mm, 1.8 mm, or 2.0 mm. By adjusting the thickness of the first flexible body in this way, the central contact area can be located near the midpoint of the first flexible body with respect to its length.This reduces the likelihood of the human ear coming into contact with the hard casing, and at the same time reduces the volume of the first casing 11 to ensure the listening effect of the open-ear headphones.

[0079] See Fig. 12. In some embodiments, the plane containing the outermost ring line of the end surface 113a of the first flexible body 113 is the first reference plane A1. On a cross-sectional surface perpendicular to the first reference plane A1 and passing through its center, a three-point circular arc is calculated from the two endpoints of the outer wall of the first flexible body 113 and the center of the first flexible body. With the center of the three-point circular arc being the center of the sound chamber, the respective connecting lines form an angle γ1 of 145° to 170°. For example, the angle γ1 can be 145°, 150°, 155°, 160°, 165°, or 170°.

[0080] In some embodiments, a three-point circular arc is calculated on the first predetermined cross-sectional surface from the two endpoints of the outer wall of the first flexible body 113 and the center of the first flexible body. With the center of the three-point circular arc as the center of the sound chamber, the connecting lines between the center of the sound chamber and the two endpoints of the first flexible body 113 enclose the angle γ1, which is between 145° and 170° (including the limiting values) or greater than 170° and less than or equal to 178°. For example, the angle γ1 can be 145°, 150°, 155°, 160°, 165°, 170°, 172°, 175°, or 178°.

[0081] See Fig. 11. In some embodiments, the plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional plane perpendicular to the first reference plane A1 and passing through its midpoint, the connecting lines between the two endpoints of the outer wall of the first flexible body 113 and a midpoint 113c of the outer wall of the first flexible body 113 form an angle β1 of 90° to 100°. For example, the angle β1 can be 90°, 92°, 94°, 96°, 98°, or 100°.

[0082] In some embodiments, the connecting lines on the first predetermined cross-sectional surface enclose an angle β1 of 90° to 100° between the two endpoints of the outer wall of the first flexible body 113 and the midpoint 113c of the outer wall of the first flexible body 113. For example, the angle β1 can be 90°, 92°, 94°, 96°, 98° or 100°.

[0083] By adjusting the enveloping angle of the first flexible body 113, it is possible to ensure that all contact areas between the ear of most people or standard head models and the first housing are covered by the first flexible body 113. In this way, comfort is guaranteed while simultaneously creating more space for the first hard housing 111, so that the volume of the inner chamber is not excessively occupied by the silicone area.

[0084] See Fig. 10. Fig. Figure 10 shows the positions of two sound outlet openings, one of which is designated by reference numeral 114 in the figure and another alternative position by reference numeral 114a. In some embodiments, the plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located is the first reference plane A1. On a cross-sectional plane that is perpendicular to the first reference plane A1 and passes through the center of the first reference plane A1, an end of the first flexible body 113 that is closer to the ear hook 3 is a first end 113a and an end that is farther from the ear hook 3 is a second end 113b.The connecting line between the first end 113a and the contact center of the outer wall of the first flexible body 113 and the connecting line between the first end 113a and the vertical center of the sound outlet opening 114 form an angle θ1 of 10° to 85°. For example, the angle θ1 can be 10°, 20°, 30°, 50°, 70°, 80° or 85°.

[0085] In some embodiments, on the first predetermined cross-sectional surface, the end of the first flexible body 113 that is closer to the ear hook 3 is designated as a first end 113a, and the end that is farther from the ear hook 3 is designated as a second end 113b. The line connecting the first end 113a to the contact center of the outer wall of the first flexible body 113 and the line connecting the first end 113a to the vertical center of the sound outlet 114 form an angle θ1 of 10° to 85°. For example, the angle θ1 can be 10°, 20°, 30°, 50°, 70°, 80°, or 85°. By adjusting the position of the sound outlet 114 in this way, better alignment of the sound outlet 114 with the ear opening can be achieved, thus enabling a higher volume of the sound heard.

[0086] In some embodiments, the central contact area between the first housing 11 and the head model is located in the region of the first flexible body 113, which is situated at one-third of the distance from the end face of the second end. The connecting line between the endpoint of the first reference plane that is closer to the ear hook and the center of the sound outlet opening 114, and the connecting line between the endpoint of the first reference plane that is closer to the ear hook and the contact center, form an angle between 10° and 85°.

[0087] Provided that the first housing is approximately spherical, the angle between the tangent at the connection point of the ear hook with the first housing and the first reference plane is between 18° and 35°, and the distance between the tangent of the ear hook and the first reference plane is 6 mm to 8 mm, by adjusting the position of the sound outlet 114 the normal direction of the sound outlet 114 can be aligned towards the ear opening, thereby achieving a higher volume of the heard sound.

[0088] In some embodiments, the angle between the mounting plane of the loudspeaker diaphragm and the symmetrical plane of the ear hook, with respect to its longitudinal direction, is less than 10°. This arrangement allows a wedge-shaped space to be formed by a curve created by cutting the first housing 11 peripherally at the loudspeaker and the cavity. If the sound outlet 114 is formed along this curve, it can form a horn structure with the cavity. By using the cavity as a reflective surface, a horn effect can be created, thereby increasing the perceived loudness of the sound.

[0089] In some embodiments, the first flexible body 113 and the second rigid housing 112 form an integral structure, produced either by one-piece machining or by rigid connection. Therefore, the two components can be prefabricated into a single unit and then jointly mounted onto the first rigid housing 111.

[0090] See Fig. 14. In some embodiments, it is provided that on a cross-sectional surface passing through a plane in which the outermost ring line of the end surface 113a of the first flexible body 113 is located, the ratio of two widths D11 and D12 of the first housing 11 lies between 0.8 and 1.2 in the orthogonal direction. In this embodiment, this width ratio of 0.8 to 1.2 results in a more spherical shape for the entire first receiving chamber 110, in order to obtain a cavity for a resonator that is more suitable for carrying, has a larger volume, and is easier to assemble.

[0091] In some embodiments, the ratio of the two widths D11 and D12 of the first housing 11 is orthogonal on the first predetermined cross-sectional surface and lies between 0.8 and 1.2. In this embodiment, this width ratio of 0.8 to 1.2 results in a more spherical shape for the entire first receiving chamber 110, in order to obtain a cavity for a resonator that is more suitable for carrying, has a larger volume, and is easier to mount.

[0092] In some embodiments, the thickness of the contact area on the first flexible body 113, which is in contact with the concha when worn, is greater than the thickness of the remaining area. On the one hand, wearing comfort can be improved by setting a greater thickness in the contact area. On the other hand, setting the thickness of the remaining area relatively small facilitates control over the overall dimensions of the sound-generating part 1.

[0093] In some embodiments, the first housing 11, based on a standard head model, has a dimension and shape such that the ear opening of the wearer is not blocked when worn.

[0094] In some embodiments, the device part 2 comprises a second housing 21, wherein the second housing 21 includes a third rigid housing 211, a fourth rigid housing 212 which, when worn, is oriented towards the back of the wearer's ear, and a second flexible body 213 which is used to make contact with the back of the wearer's ear, wherein the third rigid housing 211 and the fourth rigid housing 212 enclose a second receiving chamber 210, and wherein the outer wall of the fourth rigid housing 212 is covered by the second flexible body 213. The outer wall of the third rigid housing 211 is not enclosed by the second flexible body 213 and is exposed. Alternatively, the second flexible body 213 extends from the outside of the fourth hard housing 212 to the outside of the third hard housing 211 and covers part of the outer wall of the third hard housing 211, leaving the remaining outer wall of the third hard housing 211 exposed.

[0095] The ear-clip headphones 100 according to the above-mentioned embodiment comprise a sound-generating part 1, a mounting part 2, and an ear hook connected to the sound-generating part 1 and the mounting part 2. The mounting part 2 comprises the third hard housing 211, the fourth hard housing 212, and the second flexible body 213. The third hard housing 211 and the fourth hard housing 212 enclose the second receiving chamber 210. The third hard housing 211 and the fourth hard housing 212 provide improved support for the internal structure. When worn, the fourth hard housing 212 is typically oriented towards the back of the wearer's ear. In this embodiment, the outer wall of the fourth hard housing 212 is covered by the second flexible body 213 to reduce the possibility of the fourth hard housing 212 coming into direct contact with the wearer's skin, thus improving the wearing comfort of the headphones.At the same time, the second flexible body 213 in the system part 2 primarily covers the fourth hard housing 212, so that the outer structure and the interior of the third hard housing 211 are essentially not affected and thus the utilization of the interior of the third hard housing 211 is ensured.

[0096] Furthermore, in some embodiments, it is provided that the plant component 2, as in Fig. 2 and Fig. Figure 14 shows a second housing 21 comprising a third hard housing 211, a fourth hard housing 212 which, when worn, is oriented towards the back of the wearer's ear, and a second flexible body 213 which is used to make contact with the back of the wearer's ear, wherein the third hard housing 211 and the fourth hard housing 212 enclose a second receiving chamber 210. The outer wall of the fourth hard housing 212 is covered by the second flexible body 213, the thickness of an area on the fourth hard housing 212 covered by the second flexible body 213 being less than the thickness of the third hard housing 211. The outer wall of the fourth hard housing 212 is encased by the second flexible body 213, such that the fourth hard housing 212 has a two-layer wall thickness. The outer wall of the third hard body 211 is not enclosed by the second flexible body 213.Therefore, the third hard housing 211 requires only a single-layer wall thickness, allowing it to occupy a small volume of the second receiving chamber 210 and leaving ample space for the battery. This makes it possible to insert a larger battery and thus increase the operating time of the headphones.

[0097] Similar to the structure of the first hard housing 111 and the second hard housing 112, in some embodiments the ends of the third hard housing 211 and the ends of the fourth hard housing 212 are joined together. All parts of the outer wall of the fourth hard housing 212 that are not covered by the third hard housing 211 are covered by the second flexible body 213.

[0098] Similar to the structure of the first hard housing 111 and the second hard housing 112, the second flexible body 213 extends from the outside of the fourth hard housing 212 to the outside of the third hard housing 211 and covers part of the outer wall of the third hard housing 211.

[0099] Similar to the structure of the first hard housing 111 and the second hard housing 112, the end surface of the second flexible body 213 extends to the end surface of the third hard housing 211. Thanks to the flexible deformability of the second flexible body 213, a good waterproof seal can be achieved by adapting the second flexible body 213 to the end surface of the third hard housing 211.

[0100] Similar to the structure of the first hard housing 111 and the second hard housing 112, a gap can also be present between the end face of the second flexible body 213 and the end face of the third hard housing 211, so that sufficient deformation space is provided for the second flexible body 213 when it undergoes deformation under pressure.

[0101] Similar to the structure of the first hard housing 111 and the second hard housing 112, the outermost ring line of the end surface of the second flexible body 213 is flush with the outermost ring line of the end surface of the fourth hard housing 212 in the inside-outside direction. Alternatively, the outer wall of the third hard housing 211 is not covered by the second flexible body 213.

[0102] Similar to the structure of the first hard housing 111 and the second hard housing 112, a gap exists between the end face of the third hard housing 211 and the end face of the fourth hard housing 212. The second flexible body 213 extends into this gap and is clamped and secured by the end faces of the third hard housing 211 and the fourth hard housing 212. This interaction allows the second flexible body 213 to interact more closely with the fourth hard housing 212, and the clamping action between the fourth hard housing 212 and the third hard housing 211 also improves the watertight seal.

[0103] Similar to the structure of the first hard case 111 and the second hard case 112, the end surface of the third hard case 211 and the end surface of the fourth hard case 212 form a pair of matching surfaces that represent one or at least two of the following types: flat surface, inclined surface, stepped surface, folded surface and wavy surface.

[0104] In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the ratio of the connecting line linking the two ends of the second flexible body 213 to the housing in its radial direction is greater than or equal to 0.9 and less than or equal to 1. This means that the ratio of the connecting line linking the two ends of the second flexible body 213 to the largest radial dimension of the housing is between 0.9 and 1. For example, the ratio can be 0.9, 0.92, 0.94, 0.96, 0.98, or 1. In this way, the area covered by the second flexible body 213 enveloping the second housing 21 is limited to a specific region. If the region is too small, this results in an area of ​​the covering that is too small, causing the ear to touch the housing during use of the headphones.If the area in which the second flexible body envelops the second housing is too large, this leads to “excessive coverage,” meaning that some areas of the housing that do not come into contact with the ear are also enveloped, thus compressing the space of the second recording chamber 210 and reducing its usable space. In the concept of the present application, the described area between A and B refers to a region that lies between A and B and encompasses the endpoint A and the endpoint B.

[0105] See Fig. 15. In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the distance D13 between the center point of the outer wall of the second flexible body 213 and the tangent of the ear hook 3 is between 9 mm and 13 mm. Since this distance is greater than 9 mm, the ear hook 3 cannot exert pressure on the helix once the second housing 21 has been placed in the wearing position in the ear. Furthermore, this distance does not exceed 13 mm, thus limiting the volume of the headphones and preventing the headphones from becoming too large, which would otherwise lead to an excessive deviation of the center of gravity from the outside of the human body, causing the headphones to easily fall off.

[0106] See Fig. 17. In some embodiments, the third hard housing 211 has a U-shaped structure. This means that the third hard housing 211 comprises a connecting wall 2111 and two side walls 2112. The two side walls 2112 are arranged at two opposite ends of the connecting wall 2111. The fourth hard housing 212 is located between the two side walls 2112 of the U-shaped structure. The third hard housing 211 includes the connecting wall 2111, which is joined with the fourth hard housing 212 to form an annular circumferential wall of the contact part 2. The direction of the connecting line of the two side walls is defined as the horizontal direction, and the direction perpendicular to the horizontal direction and away from the fourth hard housing 212 is defined as the vertical direction. In this way, when the third hard housing 211 rocks in the horizontal direction, a contact force is generated on the side walls.Furthermore, a connection gap exists in the vertical direction between the third hard housing 211 and the fourth hard housing 212. The longer this connection gap is in this direction, the more difficult it is to separate the third hard housing 211 and the fourth hard housing 212 after bonding, thus ensuring a stronger and more reliable bond between the two housings. The two side surfaces of the third hard housing 211 are completely flat. When arranging an antenna or touch circuit, no cross-housing arrangement is required, leaving ample space for antenna and touch circuit placement to facilitate assembly.Since the second flexible body 213 only encloses the fourth hard housing 212, the second flexible body 213 does not extend to a side area of ​​the third hard housing 211 where a touch function exists due to the configuration of the U-shaped structure, so that no increased wear of the rubber layer is caused by touch or the like and the adhesive is not susceptible to delamination.

[0107] See Fig. 17. In some embodiments, at least one side wall of the U-shaped structure serves as a mounting base on which an antenna and / or a touch circuit board are mounted. Configuring at least one side wall as a mounting base ensures that the antenna or touch circuitry does not require an enclosure-spanning arrangement, thus providing ample space for assembly. Since the second flexible body 213 only encloses the fourth rigid enclosure, the configuration of the U-shaped structure prevents the second flexible body 213 from extending to any side region of the third rigid enclosure 211 where a touch function exists. Therefore, the second flexible body 213 is not subject to increased wear from touch or similar activities, and the adhesive is not susceptible to delamination.

[0108] In some embodiments, both the third hard enclosure 211 and the fourth hard enclosure 212 are provided with circular side walls and a semi-cylindrical outer surface (which can also be referred to as a connecting wall), similar to an L-shaped structure. The bases of the two enclosures face each other, and the semi-cylindrical outer surfaces combine to form a complete cylindrical chamber. This means that the connecting wall of the third hard enclosure 211 and the connecting wall of the fourth hard enclosure 212 are joined together to form the annular circumferential wall of the system component 2. In this way, the entire side wall remains available for mounting the antenna and / or the touch circuit board. Furthermore, this allows for simpler and more direct assembly and greater assembly efficiency.The side panel of the third hard enclosure 211 can be used as a mounting base for the antenna and / or the touch circuit board, and the side panel of the fourth hard enclosure 212 can also be used as a mounting base for the antenna and / or the touch circuit board. Either side panel can serve as a mounting base, or both side panels can serve as a mounting base simultaneously.

[0109] See Fig. 18. In some embodiments, both the third hard housing 211 and the fourth hard housing 212 have a hood-shaped structure, wherein at least one side wall of the third hard housing 211 is joined with at least one side wall of the fourth hard housing 212 to form a mounting base, and wherein the second flexible body 213 covers at least part of the mounting base.

[0110] See Fig. 18. In some embodiments, the third hard housing 211 and the fourth hard housing 212 can also be formed as a single-piece structure, wherein the fourth hard housing 212 is covered by the second flexible body 213. The second flexible body 213 has a side wall 2131, wherein the side wall 2121 of the fourth hard housing 212 can be at least partially covered by the side wall 2131.

[0111] In some embodiments, the fourth hard housing 212 and the ear hook 3 are covered by the second flexible body 213, and the second flexible body 213 is injection-molded integrally with the fourth hard housing 212 and the ear hook 3. This manufacturing process allows the second flexible body 213 to enclose the connection surface between the fourth hard housing 212 and the ear hook 3, thus avoiding an exposed connection surface between the fourth hard housing 212 and the ear hook 3 and improving the reliability and aesthetics of the headphones.

[0112] See Fig. 1 and Fig. 15. In some embodiments, the sound-generating part 1 and the mounting part 2 are in contact with each other in the neutral state, and the first flexible body 113 and the second flexible body 213 remain in contact. The two flexible bodies are in contact with each other to maintain a preload force. When released from the supported state, an impact between the sound-generating part 1 and the mounting part 2 can also be dampened by this contact between the two flexible bodies.

[0113] See Fig. 1 and Fig. 20. In some embodiments, the outer wall of the second flexible body 213 has a concave surface 2130 in the neutral state, which is oriented towards the first flexible body 113. When the headphones 100 are in the neutral state, the first flexible body 113 comes into contact with at least part of the concave surface 2130. This concave surface is designed to conform to the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear in order to increase the contact area, reduce pressure, and improve wearing comfort. The contact of the sound-generating part 1 with the concave surface can also simultaneously reduce any shock force that occurs during a sudden change from the worn state to the neutral state.

[0114] In some embodiments, the depth L0 of the concave surface 2130 on a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21 is between 0.07 and 0.25. For example, this depth can be 0.07, 0.1, 0.15, 0.20, or 0.25. By adjusting the depth of the concave surface 2130 in this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0115] In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface of the second flexible body 213, which runs perpendicular to the longitudinal direction of the second housing 21 and passes through the center point in the longitudinal direction, the outer wall of the concave surface is recessed towards the inside of the second housing 21.

[0116] In some other embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface of the second flexible body 213, which runs perpendicular to the longitudinal direction of the second housing 21 and passes through its center point in the longitudinal direction, the second flexible body is thin in the middle and thick at both ends. In this way, the curvature of the second flexible body 213 is designed in the direction near the ear so that it better conforms to the ear. In addition, the contact area of ​​the second housing 21 with the ear is increased, and the pressure exerted on the ear by the headphones is reduced.

[0117] See Fig. 15. In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the connecting lines that link the two ends of the second flexible body 213 (i.e., the two endpoints of the outer contour line of the second flexible body 213) to the centroid of the second receiving chamber 210 form an angle δ1 greater than or equal to 160°. For example, the angle δ1 may be 160°, 165°, 170°, or 175°. If the area (angle) covered by the second flexible body is too small, contact between the hard housing and the wearer's skin may occur when worn, resulting in insufficient comfort.

[0118] In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the connecting lines between the centroid of the second receiving chamber 210 and the two endpoints of the outer contour line of the second flexible body 213 enclose an angle δ1 greater than or equal to 160°, or an angle δ1 greater than or equal to 145° and less than 160°. For example, the angle δ1 can be 145°, 150°, 160°, 165°, 170°, or 175°. If the area (angle) covered by the second flexible body is too small, contact between the hard housing and the wearer's skin may occur when worn, resulting in insufficient comfort.

[0119] In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the arc length of the second flexible body 213 (here, based on the arc length of the outer contour line of the second flexible body 213) is greater than or equal to 18 mm. For example, this arc length can be 18 mm, 20 mm, 22 mm, 24 mm, or 25 mm. If the arc length of the outer contour line of the second flexible body 213 is too small, the hard housing may come into contact with the wearer's skin when worn, resulting in insufficient comfort.

[0120] In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the arc length of the outer contour line of the second flexible body 213 is greater than or equal to 18 mm, or greater than or equal to 12 mm and less than 18 mm. For example, this arc length can be 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, or 25 mm. If the arc length of the outer contour line of the second flexible body 213 is too small, the hard housing may come into contact with the wearer's skin when worn, resulting in insufficient comfort.

[0121] See Fig. 2. In some embodiments, the ear hook 3 has a support rib 31 and a third flexible body 32, wherein the third flexible body 32 encloses the support rib 31 and the second flexible body 213 and the third flexible body 32 are formed as an integrally molded overall structure. This configuration eliminates the mold parting line between the ear hook 3 and the attachment part 2, allowing for a smoother transition and thus increasing stability at the product's connection point.

[0122] In some embodiments, the second flexible body 213 and the third flexible body 32 are arranged separately and do not come into contact with each other, so that the production of the third flexible body 32 and the second flexible body 213 can be carried out separately, thereby reducing process complexity. In some other embodiments, the support rib 31 of the ear hook 3 can also be omitted.

[0123] See Fig. 15. In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the outer wall of the second flexible body 213 has a first point Q1, a second point Q2, and a third point Q3, which are sequentially distributed along the arc length of the second flexible body, wherein the distance from the first point to the centroid of the second receiving chamber 210 and the distance from the third point to the centroid of the second receiving chamber 210 are greater than the distance from the second point to the centroid of the second receiving chamber 210. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0124] See Fig. 15. In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the second point is located at the center of the outer wall of the second flexible body 213. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0125] See Fig. 15. In some embodiments, the second housing 21 has an elongated, strip-shaped structure. On a cross-sectional surface perpendicular to the longitudinal direction of the second housing 21, the angle formed by the line connecting the first point and the centroid of the second receiving chamber 210 and the line connecting the second point and the centroid of the second receiving chamber 210 is equal to the angle formed by the line connecting the second point and the centroid of the second receiving chamber 210 and the line connecting the third point and the centroid of the second receiving chamber 210. In this way, the shape of the soft tissues behind the ear and the soft tissues of the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0126] See Fig. 15. In some embodiments, the distance from the first point to the centroid of the second receiving chamber 210 is equal to the distance from the third point to the centroid of the second receiving chamber 210. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure and improve wearing comfort.

[0127] In some embodiments, the difference between the thickness of the second flexible body 213 at the first point and the thickness of the second flexible body 213 at the second point is between 0.2 mm and 0.5 mm, and / or the difference between the thickness of the second flexible body 213 at the third point and the thickness of the second flexible body 213 at the second point is between 0.2 mm and 0.5 mm. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0128] In some embodiments, the difference between the thickness D14 of the second flexible body 213 at the first point Q1 and the thickness D15 of the second flexible body 213 at the second point Q2 is between 0.2 mm and 0.5 mm, or alternatively, less than or equal to 0.2 mm. And / or the difference between the thickness D16 of the second flexible body 213 at the third point Q3 and the thickness D15 of the second flexible body 213 at the second point Q2 is between 0.2 mm and 0.5 mm, or alternatively, less than or equal to 0.2 mm. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0129] See Fig. 15. In some embodiments, the thickness D14 of the second flexible body 213 at the first point is between 1.4 mm and 1.7 mm, and / or the thickness D15 of the second flexible body 213 at the second point is between 1.0 mm and 1.3 mm, and / or the thickness D16 of the second flexible body 213 at the third point is between 1.4 mm and 1.7 mm. This thickness direction refers to a thickness perpendicular to the normal direction of the outer wall. This aims to adapt the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear to the shape of the human body in order to increase the contact area, reduce pressure, and improve wearing comfort.

[0130] See Fig. 15. In some embodiments, the thickness D14 of the second flexible body 213 at the first point is between 1.4 mm and 1.7 mm, or alternatively, this thickness is greater than or equal to 0.3 mm and less than or equal to 1.4 mm. And / or the thickness D15 of the second flexible body 213 at the second point is between 1.0 mm and 1.3 mm, or alternatively, this thickness is greater than or equal to 0.2 mm and less than or equal to 1.3 mm. And / or the thickness D16 of the second flexible body 213 at the third point is between 1.4 mm and 1.7 mm, or alternatively, this thickness is greater than or equal to 0.3 mm and less than or equal to 1.4 mm. This thickness direction refers to a thickness perpendicular to the normal direction of the outer wall. This aims to adapt the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear to the human body in order to increase the contact area, reduce pressure and improve wearing comfort.

[0131] See Fig. 15. In some embodiments, the line connecting the first point and the centroid of the second receiving chamber 210 and the line connecting the third point and the centroid of the second receiving chamber 210 enclose an angle δ2 of 165° to 175°. For example, the angle δ2 can be 165°, 168°, 172°, or 175°. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body to increase the contact area, reduce pressure, and improve wearing comfort.

[0132] In some embodiments, the line connecting the first point and the centroid of the second receiving chamber 210 and the line connecting the third point and the centroid of the second receiving chamber 210 form an angle δ2 of 165° to 175°, or an angle δ2 greater than or equal to 90° and less than 165°. For example, the angle δ2 can be 90°, 100°, 110°, 120°, 130°, 140°, 150°, 165°, 168°, 172°, or 175°. In this way, the shape of the soft tissues behind the ear and the soft tissues on the head opposite the back of the ear can be adapted to the human body to increase the contact area, reduce pressure, and improve wearing comfort.

[0133] In some embodiments, the second receiving chamber 210 is a battery chamber and the system part 2 comprises a battery, wherein the battery is received in the battery chamber.

[0134] In some embodiments, the ear hook 3 has the ear hook symmetry plane A2 along its length. This ear hook symmetry plane A2 intersects the outermost ring line of the end surface of the second flexible body 213 at two points of intersection. A third reference point O3 is provided on the outer wall of the attachment part 2, with the distance between the third reference point O3 and the outer wall of the sound-generating part 1 being the shortest. The connecting lines between the third reference point O3 and the two points of intersection form an angle δ3, which is between 80° and 130°. For example, the angle δ3 can be 80°, 90°, 100°, 110°, 120°, or 130°.

[0135] In some embodiments, the sound-generating part 1 and the attachment part 2 are arranged spaced apart from each other on the earhook symmetry plane A2 in the neutral state of the headphones 100 (i.e., without the application of an external force). In this case, the third reference point O3 can be an endpoint of the shortest connecting line between the sound-generating part 1 and the attachment part 2, located on the attachment part 2. In some embodiments, the sound-generating part 1 and the attachment part 2 are in contact with each other on the earhook symmetry plane A2 in the neutral state of the headphones (i.e., without the application of an external force). In this case, the third reference point O3 can be the midpoint of an arc segment of the attachment area of ​​the sound-generating part 1 on the attachment part 2, which is formed on the earhook symmetry plane A2.

[0136] By adjusting the enveloping angle of the second flexible body 213, it is possible to ensure that all contact areas between the ear of most people or standard head models and the second housing 21 are covered by the second flexible body 213. In this way, comfort is guaranteed and at the same time more space is created for the third hard housing 211, so that the volume of the inner chamber is not excessively occupied by the silicone area.

[0137] See Fig. 101 to 108. It should be noted that the designations of the angles in the following description, such as α, β, γ, all correspond to the designations of the angles in Fig. 101 to 108 correspond.

[0138] It should be noted that the materials of the first flexible body 113 and the second flexible body 213 are not limited to silicone, rubber, elastic resin, polyurethane material, polydimethylsiloxane, PVC, TPE and other materials, as long as they can be flexible materials.

[0139] In some embodiments, the volume emitted by the headphones at the user's ear canal opening can be adjusted by changing the position of the sound outlet on the sound-generating element. Generally, the sound the user can perceive at the same output power is louder the greater the volume emitted by the headphones at the ear canal opening, which can reduce the headphones' energy consumption and minimize sound loss.

[0140] As in Fig. As shown in Figure 101, the first housing 11 is provided in some embodiments with the sound outlet opening 114, wherein the sound generated by the sound-generating arrangement 12 is emitted to the outside via the sound outlet opening 114. The ear hook 3 has the ear hook symmetry plane A2 in its longitudinal direction, wherein the central axis of the sound outlet opening 114 forms an angle α between 15° and 45° with the ear hook symmetry plane A2 and is located below the ear hook symmetry plane A2 when worn. By adjusting the angle α formed between the central axis of the sound outlet opening 114 and the ear hook symmetry plane A2 between 15° and 45°, a better alignment of the sound outlet opening 114 towards the ear opening is achieved when worn, which contributes to an improvement in the effect of the heard sound.

[0141] In some embodiments, the sound outlet opening 114 can be elongated and strip-shaped. See Fig. 101 and Fig. 102. The sound outlet is provided perpendicular to the ear hook's plane of symmetry (i.e., the long axis of the sound outlet is perpendicular or nearly perpendicular to the ear hook's plane of symmetry, with a tolerance within 15°; one can also say that the sound outlet is longitudinally oriented). In this case, the sound outlet 114 in the first rigid housing 111 can be provided in a portion not covered by the first flexible body 113, in order to avoid the sound outlet 114 extending simultaneously over the first rigid housing 111 and the second rigid housing 112.α is defined as the angle between the straight normal pointing outwards from the sound-generating part of the headphone's sound outlet (the straight normal being the central axis of the sound outlet 114) and the ear hook symmetry plane A2, and β is defined as the angle between the ear hook symmetry plane A2 and the horizontal plane of the human body. As in . Fig. As shown in Figure 104, with α = 0° unchanged (i.e., the ear hook symmetry plane passes through the central axis of the sound outlet), the angle β was set to -20°, 0° and 45°, and the frequency response curve of the sound emitted from the headphones was measured at the ear canal opening, where the abscissa represents the frequency band (Hz) emitted from the headphones and the ordinate represents the measured sound pressure level SPL (dB).

[0142] Furthermore, with reference to Fig. 105 stipulated that, with β = 0° unchanged (i.e., in the worn state where the ear hook's plane of symmetry is parallel to the horizontal plane of the human body), the angle α was set to -30°, -15°, 0°, 15°, 30°, 45°, and 60°, and the frequency response curve of the sound emitted from the headphones was measured at the ear canal opening. As can be seen from the diagram, the measured sound pressure level (SPL) of the headphone's frequency response curve is highest at α angles in the range of 15° to 45°; that is, the emitted volume is highest.

[0143] Furthermore, due to gravity, the angle β typically lies between 0° and -30° when wearing the ear clip headphones. Therefore, the sound outlet is positioned to increase the perceived loudness in situations where β is between 0° and 30°, provided that β = 0° (i.e., in the worn state where the ear hook's plane of symmetry is parallel to the horizontal plane of the human body) and the angle α between the straight normal of the sound outlet (the straight normal being the central axis of the sound outlet 114) and the ear hook's plane of symmetry A2 is in the range of 15° to 45°. (This corresponds to the loudness in a situation where the curve with α = 0°, β = 45° in xx-2 is adjusted to approximately α = 0°, β = 0°).

[0144] As in Fig. As shown in Figure 22, the sound outlet opening 114 is, in some embodiments, strip-shaped and has a first end 1141 and a second end 1142, which are spaced apart from each other in the longitudinal direction of the sound outlet opening 114. In the worn state, the first end 1141 is oriented towards the ear opening, and the distance L1 between the outer wall of the first housing 11 at the second end 1142 and the inner wall surface of the caveum conchae is smaller than the distance L1 between the outer wall of the first housing 11 at the first end 1141 and the inner wall surface of the caveum conchae.

[0145] Furthermore, with reference to Fig. Figure 106 provides that the sound outlet opening 114 can be arranged transversely (i.e., the long axis of the sound outlet opening is parallel or nearly parallel to the ear hook symmetry plane, with a tolerance within 15°). In this case, the sound outlet opening 114 can be provided in the second rigid housing 112 and the first flexible body 113 to avoid the sound outlet opening 114 extending simultaneously over the first rigid housing 111 and the second rigid housing 112, as shown in Figure 106. Fig. Figure 22 illustrates this. The previously described longitudinally arranged sound outlet is rotated 90° along its central axis of symmetry, and the straight normal of the sound outlet, which previously points outwards from the sound-generating part, is in this case rotated towards the center of the shorter side of the sound outlet that is closer to the ear canal opening. The angle traversed by this rotation is defined as γ. As in Fig. As shown in Figure 107, frequency response curves of the emitted sound at the ear canal were measured for gradients of γ set to 0°, 15°, 30°, 37.5°, 45°, and 60°. The diagram shows that with increasing angle γ of the sound outlet (i.e., the sound outlet rotates continuously inwards towards the ear canal), the sound pressure level (SPL) initially increases and then decreases. In the interval from 30° to 45°, it can be assumed that the measured sound pressure level at the ear canal is better than in other intervals, and the change in the sound pressure level in this interval is not obvious (the sound pressure level curves at 30°, 37.5°, and 45° converge), meaning that the value of γ can lie between 30° and 45°.

[0146] In Fig. 107-A and Fig. 107-B, the change trend in the sound pressure level (SPL) emitted from the headphones can be explained by the "horn effect". As in Fig. 108-A and Fig. As shown in Figure 108-B, the shading of the gray areas in the figure represents the magnitude of the sound pressure level. When a point sound source in a room radiates sound into the surroundings and a reflective wall surface is located in the near field of the sound propagation direction, areas of increased sound intensity are created at some positions in the diffuse field near the sound source due to interference or diffraction between the reflected sound waves and the sound waves of the sound source, unlike in a free field.

[0147] h-gap is defined as the straight-line distance between the center position of the sound-generating part and the reflecting wall surface, and θ is defined as the angle between the straight normal of the sound outlet pointing outwards from the sound-generating part and the straight line from the center position of the sound-generating part to the reflecting wall surface. Fig. Figures 109A to 109-C show the simulation results, presented as contour maps versus sound pressure levels, for h-gap values ​​of 5 mm, 10 mm, 15 mm, and 20 mm, 0-values ​​of 0°, 60°, 120°, 180°, 240°, and 300°, and a sound source signal of 2000 Hz. The results show that the sound is louder near the reflecting wall surface the closer the sound source is to the surface. The maximum sound pressure level (the largest area of ​​high sound pressure level) can be generated on one side when the straight normal of the sound outlet, pointing outwards from the sound-generating element, is angled (60° or 300°) to the reflecting wall. This area of ​​high sound pressure level on this side can be considered the listening position.

[0148] In the present application, the sound-generating element can be considered a point sound source enclosed in a housing, wherein a sound outlet opening is provided in the housing and the cavum conchae opposite the sound outlet opening can be considered a reflective wall surface. Therefore, if the sound outlet opening is located as close as possible to the cavum conchae and the sound outlet position is on one side, the maximum output sound pressure level can be achieved at the listening position of the ear opening.

[0149] Fig.Figure 110 shows a diagram of sound loss curves for different positions of the sound outlet. In the test environment, sound loss refers to the sound traveling from the ear canal in a direction perpendicular to the sagittal plane of the human body to a point 30 mm from the ear canal, the loudness of which can be measured with a microphone. Under the conditions of an optimized design, the design with a transversely oriented sound outlet (γ = 37.5°) exhibits approximately 2 dB less sound loss compared to the original design with a longitudinally oriented sound outlet.

[0150] The above description of the present application, using specific examples, serves only to facilitate understanding of the present application and is not intended to limit its scope. For those skilled in the field of the present application, several simple subtractions, transformations, or substitutions can be made in accordance with the ideas of the present application. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202311701969.7

[0001]

Claims

[1] Ear clip headphones, characterized bythat it comprises a sound-generating part used for insertion into the cavum conchae of a wearer, a fitting part used for resting against the back of the wearer's ear, and an ear hook connecting the sound-generating part to the fitting part, wherein the fitting part and the sound-generating part assume a clamping position to enable the wearing of the ear clip headphone by clamping the ear clip headphone to the helix of the wearer, wherein the sound-generating part comprises a first housing and a sound-generating arrangement, the first housing having a first receiving chamber in which the sound-generating arrangement is arranged, the first housing having a sound outlet opening through which sound generated by the sound-generating arrangement is emitted, and wherein the ear hook has an ear hook symmetry plane in its longitudinal direction.and wherein a central axis of the sound outlet forms an angle between 15° and 45° with the ear hook symmetry plane and is located below the ear hook symmetry plane when worn. [2] Ear clip headphones according to claim 1, characterized by , that in the worn state, an angle between 0° and 30° is enclosed between the ear hook symmetry plane and the horizontal plane of the wearer's human body. [3] Ear clip headphones according to claim 1, characterized by , that the sound generation arrangement comprises a central mounting bracket and two loudspeakers which are mounted together on the central mounting bracket, wherein a sound transmission channel is formed between the diaphragms of the two loudspeakers through which the central axis of the sound outlet opening runs. [4] Ear clip headphones according to claim 3, characterized by, that a protruding structure is provided on one side of the mounting bracket, with the sound transmission channel still being arranged on the protruding structure. [5] Ear clip headphones according to claim 4, characterized by , that the inner wall of the first housing is provided with a groove which is used to accommodate the protruding structure. [6] Ear clip headphones according to claim 1, characterized by , that the sound-generating arrangement includes a loudspeaker, wherein the angle between a mounting plane in which a diaphragm of the loudspeaker is located and the earhook symmetry plane is less than 10°. [7] Ear clip headphones according to claim 1, characterized by that the sound outlet opening is strip-shaped and the length direction of the sound outlet opening runs perpendicular or almost perpendicular to the ear hook symmetry plane. [8] Ear clip headphones according to claim 7, characterized by, that the first housing comprises a first hard housing, a second hard housing and a first flexible body, wherein the first hard housing is connected to the ear hook, wherein the second hard housing, in the worn state, lies near the cavum conchae, wherein the outer wall of the second hard housing is covered by the first flexible body, wherein the outer wall of the first hard casing is not enclosed by the first flexible body and is exposed, or wherein the first flexible body extends from the outside of the second hard housing to the outside of the first hard housing and covers part of the outer wall of the first hard housing, thereby exposing the remaining outer wall of the first hard housing, and the sound outlet opening is located in the first hard housing. [9] Ear clip headphones according to claim 1, characterized by, that the sound outlet opening is strip-shaped and has a first end and a second end which are spaced apart from each other in the longitudinal direction of the sound outlet opening, wherein in the worn state the first end is directed towards the ear opening, and wherein the distance between the outer wall of the first housing at the second end and the inner wall surface of the caveum conchae is smaller than the distance between the outer wall of the first housing at the first end and the inner wall surface of the caveum conchae. [10] Ear clip headphones according to claim 9, characterized by that the longitudinal direction of the sound exit opening runs parallel or almost parallel to the ear hook symmetry plane. [11] Ear clip headphones according to claim 9, characterized by, that the first housing comprises a first hard housing, a second hard housing and a first flexible body, wherein the first hard housing is connected to the ear hook, wherein the second hard housing, when worn, is located near the cavum conchae, wherein the outer wall of the second hard housing is covered by the first flexible body, wherein the outer wall of the first hard housing is not enclosed by the first flexible body and is exposed, or wherein the first flexible body extends from the outside of the second hard housing to the outside of the first hard housing and covers part of the outer wall of the first hard housing, thereby exposing the remaining outer wall of the first hard housing, and wherein the sound outlet opening is provided in the second hard housing and the first flexible body. [12] Ear clip headphones according to any one of claims 8 to 11, characterized by, that the thickness of a contact area on the first flexible body that is in contact with the cavum conchae in the worn state is greater than the thickness of the remaining area. [13] Ear clip headphones according to claim 1, characterized by , that the device component comprises a second housing, wherein the second housing comprises a third hard housing, a fourth hard housing which, when worn, is oriented towards the rear of the wearer's ear, and a second flexible body which is used to make contact with the rear of the wearer's ear, wherein the third hard housing and the fourth hard housing enclose a second receiving chamber, and wherein the outer wall of the fourth hard housing is covered by the second flexible body. [14] Ear clip headphones according to claim 13, characterized by , that the outer wall of the third hard casing is not enclosed by the second flexible body and is exposed, or wherein the second flexible body extends from the outside of the fourth hard housing to the outside of the third hard housing and covers part of the outer wall of the third hard housing, leaving the remaining outer wall of the third hard housing exposed. [15] Ear clip headphones according to claim 13, characterized by , that the thickness of an area on the fourth hard shell, which is covered by the second flexible body, is smaller than the thickness of the third hard shell. [16] Ear clip headphones according to any one of claims 13 to 15, characterized by , that the sound-generating part and the system part are in a neutral state in contact with each other, with the first flexible body and the second flexible body remaining in contact to maintain a preload force. [17] Ear clip headphones according to any one of claims 8 to 16, characterized by, that the ends of the second hard case and the ends of the first hard case are fastened together by joining them. [18] Ear clip headphones according to any one of claims 8 to 17, characterized by , that the first flexible body and the second hard casing form an integral structure, which is produced either by one-piece machining or by rigid joining.

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