Head-mounted device

Abstract

The embodiment of the invention discloses a head-mounted device, the head-mounted device is provided with glasses legs and a sound production unit, and an accommodating part is provided with an accommodating cavity, a first sound outlet and a second sound outlet. The accommodating cavity can be used for accommodating the sound production unit. On one hand, the first loudspeaker and the second loudspeaker are arranged on the fixing frame in the length direction of the glasses legs, on the basis that the two loudspeakers are arranged, increase of the size of the glasses legs in the thickness direction is reduced, on the other hand, the fixing frame divides the containing cavity into the first compartment and the second compartment which are the same in shape, and therefore the size of the glasses legs is reduced. Therefore, the sound wave propagation paths of the first loudspeaker and the second loudspeaker are the same, the sound waves emitted by the whole sound production unit can be offset in the distance, and the privacy is improved. While the size of the head-mounted device is reduced, the sound production privacy of the head-mounted device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustic conversion, and in particular to a head-mounted device. Background Art

[0002] Placing the speakers on the temples of head-mounted devices such as smart glasses allows the speakers to be closer to the human ear, making it easier for the wearer to receive sound. Placing two speakers in the temples can increase the volume, but it also increases the size of the temples. How to improve the sound quality of the speakers and avoid the speakers occupying too much of the temple volume when increasing the number of speakers has become a problem that needs to be solved. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a head mounted device, in which a first speaker and a second speaker are arranged on a mounting surface of a fixing frame, and the two mounting surfaces are arranged opposite to each other in the cross-sectional direction of the temple length. Thus, the volume occupied by the sound unit is reduced, and the first compartment and the second compartment are used to accommodate the second speaker and the first speaker respectively, thereby increasing the volume of the sound cavity and improving the sound quality of the sound unit.

[0004] The head mounted device according to the embodiment of the present invention comprises:

[0005] A temple, comprising a receiving portion, wherein the receiving portion has a first sound outlet, a second sound outlet and a receiving cavity; and

[0006] A fixing frame, disposed in the accommodating cavity and dividing the accommodating cavity into a first compartment and a second compartment;

[0007] The sound-emitting unit comprises a first speaker and a second speaker, wherein the first speaker and the second speaker both comprise a diaphragm, and the first speaker and the second speaker are respectively arranged on the fixing frame along the length direction of the temple; the first speaker is located in the second compartment and the diaphragm of the first speaker is connected to the first sound outlet through the first compartment, and the second speaker is located in the first compartment and the diaphragm of the second speaker is connected to the second sound outlet through the second compartment.

[0008] Furthermore, the fixing frame includes two mounting surfaces and a spacer block, the two mounting surfaces extend from the spacer block to both ends of the temple, and in the cross-sectional direction of the length of the temple, the two mounting surfaces are opposite and relatively arranged, and the first speaker and the second speaker are respectively arranged on the two mounting surfaces.

[0009] Furthermore, the fixing frame further comprises two mounting arms, the mounting arms have the mounting surfaces, the two mounting surfaces are parallel, the mounting surfaces are provided with windows, and the windows penetrate the mounting arms;

[0010] The first speaker and the second speaker are respectively attached to the two installation surfaces, and the two diaphragms are respectively exposed to the first compartment and the second compartment through the two windows.

[0011] Further, the mounting arm has a mounting groove, and the bottom of the mounting groove is the mounting surface;

[0012] The first speaker and the second speaker both include sound leakage holes. The first speaker and the second speaker are respectively clamped in the two installation grooves, and the sound leakage holes are located on the outside of the installation grooves.

[0013] Furthermore, the fixing frame further comprises:

[0014] Two spacer bars are arranged corresponding to the two mounting arms, the spacer bars have positioning edges, and the spacer bars are convexly arranged on a side of the corresponding mounting arm away from the mounting surface;

[0015] The fixing frame is arranged in the accommodating cavity, and the two positioning edges abut against the inner wall of the accommodating cavity.

[0016] Furthermore, the number of the first sound outlets and the number of the second sound outlets are both two, the two first sound outlets are respectively arranged corresponding to the two mounting arms, and the two second sound outlets are respectively arranged corresponding to the two mounting arms;

[0017] The spacer bar is arranged around a part of the circumference of the window, and the spacer bar comprises a first stopper bar and a second stopper bar, wherein the two second stopper bars are located at ends of the two mounting arms that are away from each other;

[0018] The first baffle and the first sound outlet corresponding to the same mounting arm are arranged opposite to each other, and the first baffle is located at a side of the window away from the first sound outlet.

[0019] Further, the accommodating portion further comprises a first stopper and a second stopper, the first stopper and the second stopper are convexly disposed on the inner wall of the accommodating cavity, the first stopper is located between the two first sound outlets, and the second stopper is located between the two second sound outlets;

[0020] The positioning edge abuts against the inner wall of the accommodating cavity, and the first stopper and the second stopper abut against two mounting arms respectively and correspond to the spacer block.

[0021] Furthermore, the number of the temples is two, and the temples have a first side surface, a second side surface, and a third side surface extending along the length direction, and the third side surfaces of the two temples are arranged opposite to each other, and the third side surface is located between the first side surface and the second side surface;

[0022] The first sound outlet and the second sound outlet are located on the first side surface and the second side surface respectively, and the diaphragm faces the third side surface.

[0023] Furthermore, the number of the first sound outlets and the number of the second sound outlets are both two, the two first sound outlets are respectively arranged corresponding to the two mounting arms, and the two second sound outlets are respectively arranged corresponding to the two mounting arms;

[0024] The first speaker and the second speaker both have a sound leakage hole, the sound leakage hole of the second speaker is located in the first compartment, and the sound leakage hole of the first speaker is located in the second compartment.

[0025] Further, the first speaker and the second speaker each have a bottom surface away from the diaphragm, and the sound leakage hole is located on the bottom surface;

[0026] The sound generating unit is arranged in the accommodating cavity, and a sound guiding gap is formed between the bottom surface and the inner wall of the accommodating cavity.

[0027] Further, the first speaker and the second speaker each have a peripheral side surface surrounding the diaphragm, the sound leakage hole is arranged on the peripheral side surface, and part of the peripheral side surface faces the first side surface and / or the second side surface;

[0028] The sound-generating unit is disposed in the accommodating cavity, and the sound leakage hole corresponds to the first sound outlet or the second sound outlet.

[0029] The head-mounted device of the embodiment of the present invention is provided with temples and a sound-emitting unit, and a receiving cavity and a first sound outlet and a second sound outlet connected to the receiving cavity are provided in the receiving portion. The receiving cavity can be used to receive the sound-emitting unit and transmit the sound of the sound-emitting unit to the outside of the temple through the first sound outlet and the second sound outlet. Thus, on the one hand, the first speaker and the second speaker are arranged on the fixing frame along the length direction of the temple, and on the basis of setting two speakers, the increase in the size in the thickness direction of the temple is reduced. On the other hand, the fixing frame divides the receiving cavity into the first compartment and the second compartment of the same shape, so that the sound wave propagation paths of the first speaker and the second speaker are the same, and the sound waves emitted by the sound-emitting unit as a whole can be offset at a distance, thereby improving privacy. While reducing the volume of the head-mounted device, the privacy of the sound emitted by the head-mounted device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0031] Figure 1 is a schematic structural diagram of a temple according to an embodiment of the present invention;

[0032] Figure 2 is an exploded schematic diagram of a temple of an embodiment of the present invention;

[0033] Figure 3 is a schematic structural diagram of a first speaker according to an embodiment of the present invention in some implementation modes;

[0034] Figure 4 is a schematic structural diagram of the first speaker of the embodiment of the present invention in other implementation modes;

[0035] Figure 5 is a cross-sectional schematic diagram of a fixing frame and a first speaker according to an embodiment of the present invention;

[0036] Figure 6 is an exploded schematic diagram of a sound generating unit according to an embodiment of the present invention in some implementation modes;

[0037] Figure 7 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention in some implementation modes;

[0038] Figure 8 is an exploded schematic diagram of a sound-emitting unit of an embodiment of the present invention in other implementation modes;

[0039] Fig. 9 is a schematic structural diagram of a fixing frame according to an embodiment of the present invention in other implementation modes;

[0040] Fig.10 is a cross-sectional schematic diagram of a receiving portion according to an embodiment of the present invention;

[0041] Fig.11 is a structural schematic diagram of a fixing frame and a receiving portion according to an embodiment of the present invention;

[0042] Fig.12 yes Figure 1 Schematic cross-sectional view at AA and BB;

[0043] Fig.13 yes Figure 2 Schematic cross-sectional view at CC in the middle;

[0044] Fig.14 is a schematic diagram of the positions of the first sound outlet and the second sound outlet of an embodiment of the present invention;

[0045] Fig.15 It is a schematic diagram of the position of the first sound outlet of an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 1- sound unit;

[0048] 11-first speaker; 12-second speaker; 13-diaphragm; 14-sound leakage hole; 15-bottom surface; 16-sound guide gap; 17-side surface; 171-first surface; 172-second surface; 173-third surface;

[0049] 2-accommodating portion;

[0050] 21-first sound outlet; 22-second sound outlet; 23-accommodating cavity; 231-first compartment; 232-second compartment;

[0051] 241-first stopper; 242-second stopper;

[0052] 3-Fixed frame;

[0053] 31- mounting surface;

[0054] 32-spacer block;

[0055] 33-mounting arm; 331-first retaining wall; 332-second retaining wall; 333-third retaining wall;

[0056] 34-Window;

[0057] 35-installation slot; 351-notch;

[0058] 36-spacer bar; 361-first stop bar; 362-second stop bar; 363-positioning edge;

[0059] 37- positioning plate;

[0060] 4- temples;

[0061] 41 - first side surface; 42 - second side surface; 43 - third side surface; 44 - first shell; 45 - second shell; 46 - ear hanging area. DETAILED DESCRIPTION

[0062] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. It is possible for a person skilled in the art to fully understand the present invention without the description of these details. In order to avoid confusing the essence of the present invention, known methods, processes, flows, components and circuits are not described in detail.

[0063] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0064] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0065] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0066] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0068] Figure 1 2 is a schematic structural diagram of the temple 4 of this embodiment. Figure 2 : is an exploded schematic diagram of the temple 4 of this embodiment. The temple 4 in this embodiment can be applied to a head-mounted device. The head-mounted device can be a head display device. The head display device is used to realize at least one function of virtual reality, augmented reality, mixed reality or image reality. The head-mounted device can also be smart glasses. Smart glasses include two temples 4 arranged in pairs. The Bluetooth module and Figure 2 The sound unit 1 is arranged on the temple 4, so that the smart glasses can be connected to the mobile phone through the Bluetooth module to realize functions such as music playing or answering calls.

[0069] Figure 3 and Figure 41 is a schematic diagram of the structure of the first speaker 11 of this embodiment in different implementations. The first speaker 11 is a rectangular parallelepiped structure. Figure 3 The sound leakage hole 14 of the first speaker 11 is located on the side away from the diaphragm 13. Figure 4 The sound leakage hole 14 of the first speaker 11 is oriented toward the side of the first speaker 11 .

[0070] Figure 5 1 is a cross-sectional schematic diagram of the fixing bracket 3 and the first speaker 11 of this embodiment. The second speaker 12 is not shown in the figure.

[0071] Figure 6 Schematic diagram of an explosion of the sound unit 1 of this embodiment. Figure 7 3 is a schematic diagram of the structure of the fixing frame 3 of the present embodiment. In the present embodiment, the sound leakage holes 14 of the first speaker 11 and the second speaker 12 are arranged at the side.

[0072] Figure 8 Schematic diagram of an explosion of the sound unit 1 of this embodiment. Fig. 9 3 is a schematic diagram of the structure of the fixing frame 3 of this embodiment. In this embodiment, the sound leakage holes 14 of the first speaker 11 and the second speaker 12 face away from the fixing frame 3, and the sound leakage holes 14 of the first speaker 11 and the second speaker 12 face opposite directions.

[0073] Fig.10 2 is a cross-sectional schematic diagram of the accommodation portion 2 of this embodiment. Fig.11 2 is a schematic diagram of the structure of the fixing frame 3 and the accommodating portion 2 of this embodiment. The accommodating portion 2 is located in the middle area of ​​the length direction of the temple 4, so that the sound outlet hole facing the human ear is as close to the human ear as possible.

[0074] In some embodiments, Figure 2 , Fig.10 and Fig.11 As shown, the temple 4 in this embodiment includes a first shell 44 and a second shell 45. The first shell 44 is provided with a plurality of receiving grooves, and the operator can first place the fixing frame 3 in one of the receiving grooves, and then snap the second shell 45 into the first shell 44, so that the second shell 45 covers the receiving groove to describe the receiving cavity 23, and at the same time, the second shell 45 and the first shell 44 can fix the fixing frame 3 to prevent it from shaking in the receiving cavity 23.

[0075] Fig.12 yes Figure 1 The first speaker 11 and the second speaker 12 are not shown in the two figures, and the outline of the fixing frame 3 in the figures is shown with a thick dot-dash line.

[0076] Fig.13 yes Figure 2Schematic cross-sectional view at CC in the middle. Fig.14 1 is a schematic diagram of the positions of one side of the first sound outlet 21 and the second sound outlet 22 in an embodiment of the present invention. Fig.15 FIG. 2 is a schematic diagram showing the position of the first sound outlet 21 in an embodiment of the present invention. Figure 13-Figure 15 As shown, in this embodiment, the first sound outlet 21 is shown by a thick dotted line, and the second sound outlet 22 is shown by a thin dotted line.

[0077] In some embodiments, Figure 1-Figure 2 As shown, the head-mounted device in this embodiment includes a temple 4 and a sound-emitting unit 1. The temple 4 includes a receiving portion 2, and the receiving portion 2 has a first sound outlet 21, a second sound outlet 22, and a receiving cavity 23. The receiving cavity 23 is connected to the outer side of the temple 4 through the first sound outlet 21 and the second sound outlet 22.

[0078] Further reference Figure 5-Figure 6 As shown, the sound unit 1 includes a fixing frame 3 and a first speaker 11 and a second speaker 12 disposed on the fixing frame 3. The first speaker 11 and the second speaker 12 both include a diaphragm 13. The fixing frame 3 includes two mounting surfaces 31 and a spacer block 32.

[0079] Further reference Figure 12-13 As shown, the two mounting surfaces 31 extend from the spacer block 32 to the two ends of the temple 4. That is, the two mounting surfaces 31 extend from the spacer block 32 to the two sides of the spacer block 32, and the extending direction of the two mounting surfaces 31 is consistent with the length direction of the temple 4 (such as Fig.13 as indicated by arrow D in FIG.

[0080] At the same time, in the cross-sectional direction of the length of the temple 4 (such as Fig.12 The two mounting surfaces 31 face opposite and are arranged relative to each other (as shown by the dotted lines in the figure), and the first speaker 11 and the second speaker 12 are respectively arranged on the two mounting surfaces 31. That is, the two mounting surfaces 31 face the central area of ​​the fixing frame 3.

[0081] Further reference Fig.11As shown, the fixing frame 3 is disposed in the accommodating cavity 23 and divides the accommodating cavity 23 into a first compartment 231 and a second compartment 232. The first speaker 11 is located in the second compartment 232 and the diaphragm 13 of the first speaker 11 is connected to the first sound outlet 21 through the first compartment 231. Thus, the second compartment 232 can be used to accommodate the first speaker 11, and the diaphragm 13 of the first speaker 11 faces the first compartment 231, and then the first speaker 11 can emit sound from the first sound outlet 21. The second speaker 12 is located in the first compartment 231 and the diaphragm 13 of the second speaker 12 is connected to the second sound outlet 22 through the second compartment 232. Thus, the first compartment 231 can be used to accommodate the second speaker 12, and the diaphragm 13 of the second speaker 12 faces the second compartment 232, and then the second speaker 12 can emit sound from the second sound outlet 22.

[0082] In summary, the head-mounted device in this embodiment is provided with a temple 4 and a sound unit 1, and a housing cavity 23 and a first sound outlet 21 and a second sound outlet 22 connected to the housing cavity 23 are provided in the housing portion 2. The housing cavity 23 can be used to accommodate the sound unit 1 and transmit the sound of the sound unit 1 to the outside of the temple 4 through the first sound outlet 21 and the second sound outlet 22. Therefore, on the one hand, two mounting surfaces 31 extending from the spacer block 32 to the two ends of the temple 4 are provided on the fixing frame 3, and the two mounting surfaces 31 face opposite directions. When the first speaker 11 and the second speaker 12 are provided on the mounting surface 31, the first speaker 11 and the second speaker 12 partially overlap in the length direction of the temple 4, thereby reducing the size of the temple 4 in the direction perpendicular to the mounting surface 31. On the other hand, the fixing frame 3 divides the housing cavity 23 into a first compartment 231 and a second compartment 232, and the first compartment 231 is used to accommodate the second speaker 12 and provide a sound propagation path for the first speaker 11. The second compartment 232 is used to accommodate the first speaker 11 and provide a sound propagation path for the second speaker 12. Thus, the sound quality of the sound unit 1 is improved, and the volume of the accommodating cavity 23 can be further reduced.

[0083] In some embodiments, Figure 5 and Figure 6 As shown, the fixing frame 3 further includes two mounting arms 33. The mounting arms 33 have mounting surfaces 31, and the two mounting surfaces 31 are arranged in parallel. The mounting surfaces 31 are provided with windows 34, and the windows 34 penetrate the mounting arms 33. The axial directions of the two windows 34 are arranged in parallel with each other.

[0084] Further reference Fig.13 and Fig.15 As shown, when the first speaker 11 and the second speaker 12 are respectively attached to the two mounting surfaces 31 , the two diaphragms 13 are respectively exposed to the first compartment 231 and the second compartment 232 through the two windows 34 .

[0085] Furthermore, when the first speaker 11 is disposed on the mounting surface 31, one side of the first speaker 11 on which the diaphragm 13 is disposed is covered on one window 34, and the diaphragm 13 of the first speaker 11 faces the first compartment 231 through the window 34. One side of the second speaker 12 on which the diaphragm 13 is disposed is covered on another window 34, and the diaphragm 13 of the second speaker 12 faces the second compartment 232 through the window 34.

[0086] In this form, by arranging the first speaker 11 and the second speaker 12 on the fixing frame 3, the first speaker 11 and the second speaker 12 are arranged along the length direction of the temple 4, and the first speaker 11 and the second speaker 12 partially overlap in the length direction of the temple 4, while enhancing the sound effect, the thickness of the temple will not be increased too much, and the first compartment 231 cooperates with the second speaker 12 and the diaphragm 13 of the first speaker 11 to form a first sound cavity, and the second compartment 232 cooperates with the diaphragm 13 of the first speaker 11 and the second speaker 12 to form a second sound cavity. Therefore, the first sound cavity can make full use of the gap between the second speaker 12 and the fixing frame 3 and the gap between the second speaker 12 and the accommodating cavity 23, and increase the volume of the first sound cavity.

[0087] In other embodiments, Figure 1-Figure 2 As shown, the head-mounted device in this embodiment includes a temple 4 and a sound unit 1. The temple 4 includes a receiving portion 2, and the receiving portion 2 has a first sound outlet 21, a second sound outlet 22, and a receiving cavity 23. The first sound outlet 21 and the second sound outlet 22 are in opposite directions. That is, the first sound outlet 21 and the second sound outlet 22 are respectively arranged on two opposite side walls of the receiving portion 2.

[0088] Further reference Figure 4-Figure 6 As shown, the sound unit 1 includes a first speaker 11 and a second speaker 12. The first speaker 11 and the second speaker 12 both include a diaphragm 13 and a first surface 171, the first surface 171 has a sound leakage hole 14, and the lateral direction of the diaphragm 13 toward the first sound outlet 21, that is, the thickness direction of the central area of ​​the diaphragm 13 is perpendicular to the axial direction of the first sound outlet 21. At the same time, the first surface 171 is arranged toward the first sound outlet 21 or the second sound outlet 22.

[0089] Further reference Figure 10-11 As shown, the sound unit 1 is disposed in the accommodating cavity 23 and divides the accommodating cavity 23 into a first sound cavity and a second sound cavity.

[0090] Further reference Fig.13As shown, the second sound outlet 22 is connected to the sound leakage hole 14 of the first speaker 11 through the second sound cavity, and the diaphragm 13 of the second speaker 12 is exposed to the second sound cavity. In the cross-sectional direction of the depth of the second sound outlet 22, the sound leakage hole 14 of the first speaker 11 corresponds to the second sound outlet 22 at least partially. That is, the sound leakage hole 14 of the first speaker 11 is toward the outside of the accommodating portion 2 through the second sound outlet 22.

[0091] The first sound outlet 21 is connected to the sound leakage hole 14 of the second speaker 12 through the first sound cavity, and the diaphragm 13 of the first speaker 11 is exposed to the first sound cavity. In the cross-sectional direction of the depth of the first sound outlet 21, the sound leakage hole 14 of the second speaker 12 at least partially corresponds to the first sound outlet 21. That is, the sound leakage hole 14 of the second speaker 12 is toward the outside of the accommodating portion 2 through the first sound outlet 21.

[0092] Specifically, the first speaker 11 and the second speaker 12 in this embodiment are rectangular parallelepiped structures, the first surface 171 is a plane, the first surface 171 and the diaphragm 13 are perpendicular to each other, and the first surface 171 of the first speaker 11 and the first surface 171 of the second speaker 12 are oppositely oriented and are respectively arranged corresponding to the second sound outlet 22 and the first sound outlet 21. The sound leakage hole 14 in this embodiment is arranged on the side of the first speaker 11 or the second speaker 12, so as to facilitate the airflow inside and outside the speaker.

[0093] In summary, the head mounted device in this embodiment has a first sound outlet 21 and a second sound outlet 22 in communication with the accommodating cavity 23 in the accommodating portion 2. A diaphragm 13 and a first surface 171 are arranged on the first speaker 11 and the second speaker 12, and the first surface 171 faces the first sound outlet 21 or the second sound outlet 22 and the diaphragm 13 faces the side of the first sound outlet 21. Therefore, when the sound emitting unit 1 is arranged in the accommodating cavity 23, the first sound outlet 21 will correspond to the sound leakage hole 14 of the second speaker 12, and the second sound outlet 22 will correspond to the sound leakage hole 14 of the second speaker 12. Thus, the first sound outlet 21, the second sound outlet 22 cooperate with the sound leakage hole 14 to form a shorter sound leakage channel, thereby reducing the size of the speaker. On the other hand, the directions of the first sound outlet 21 and the second sound outlet 22 are configured to be opposite, and the sound waves transmitted by the first sound outlet 21 and the second sound outlet 22 cancel each other out within a certain range, thereby achieving a remote silencing effect, improving privacy, and reducing the impact of the head-mounted device on the surrounding environment.

[0094] In some embodiments, Figure 4 and Fig.13 As shown, there are multiple sound leakage holes 14 and they are arranged at intervals along the length direction of the temple 4.

[0095] Further reference Fig.14As shown, both the first sound outlet 21 and the second sound outlet 22 are slit structures, and the length direction of the first sound outlet 21 and the second sound outlet 22 is consistent with the length direction of the temple 4. At the same time, the projections of the first sound outlet 21 and the second sound outlet 22 on the first surface 171 overlap with the multiple sound leakage holes 14 located on the same first surface 171. That is, in the cross-sectional direction of the depth of the first sound outlet 21, the multiple sound leakage holes 14 on the first surface 171 of the first speaker 11 are located inside the first sound outlet 21, and the multiple sound leakage holes 14 on the first surface 171 of the second speaker 12 are located inside the second sound outlet 22.

[0096] In this embodiment, a plurality of sound leakage holes 14 are provided on the first surface 171 along the length direction of the speaker, which can increase the cross-sectional area of ​​the air flow and reduce the air flow resistance. At the same time, the first sound outlet 21 and the second sound outlet 22 are configured as a slit structure, which can ensure that each sound leakage hole 14 of the first surface 171 is arranged corresponding to the first sound outlet 21 or the second sound outlet 22. As a result, the airflow flowing into and out of each sound leakage hole 14 of the first surface 171 can directly pass through the first sound outlet 21 or the second sound outlet 22, reducing the occurrence of repeated circulation of the airflow in the accommodating cavity 23.

[0097] In some embodiments, Figure 4 As shown, the first speaker 11 and the second speaker 12 further include a peripheral side surface 17 surrounding the diaphragm 13 , and the peripheral side surface 17 includes the above-mentioned first surface 171 .

[0098] Further reference Figure 5-Figure 7 As shown, the sound unit 1 further comprises a fixing frame 3, which is disposed in the accommodating cavity 23 and has two mounting grooves 35. The first speaker 11 and the second speaker 12 are respectively mounted in the two mounting grooves 35, and the sound leakage hole 14 is located outside the mounting grooves 35.

[0099] The mounting groove 35 in this embodiment is used to position the speaker so that the speaker can be fixedly connected to the fixing frame 3. At the same time, in order to prevent the mounting groove 35 from interfering with the sound leakage hole 14, the side of the peripheral side surface 17 close to the diaphragm 13 is arranged in the mounting groove 35, and the sound leakage hole 14 is kept outside the mounting groove 35. As a result, the airflow through the sound leakage hole 14 is smoother, and the airflow is prevented from interfering with the fixing frame 3.

[0100] In some embodiments, Figure 5-Figure 9 As shown, the mounting arm 33 has the mounting groove 35 , and the bottom of the mounting groove 35 is the mounting surface 31 .

[0101] It is easy to understand that the sound leakage hole 14 in this embodiment can connect the inside and outside of the speaker to reduce the pressure difference between the inside and outside of the first speaker 11 and the second speaker 12. Thus, the bass and mid-bass frequency range of the speaker is increased and the bass performance is improved. To this end, the first speaker 11 and the second speaker 12 are arranged on one end of the diaphragm 13 and clamped in the mounting groove 35, and the sound leakage hole 14 is arranged outside the mounting groove 35 to prevent the fixing frame 3 from interfering with the exhaust and sound leakage of the sound leakage hole 14.

[0102] In some embodiments, Figure 4-Figure 6 As shown, the peripheral side surface 17 further includes a second surface 172. The second surface 172 and the first surface 171 on the same peripheral side surface 17 are separated from each other, and the second surface 172 is provided with a sound leakage hole 14. When the first speaker 11 and the second speaker 12 are clamped in the mounting groove 35, the second surface 172 is spaced apart from the inner wall of the accommodating cavity 23.

[0103] In this embodiment, both the first surface 171 and the second surface 172 are provided with sound leakage holes 14 to further reduce the resistance of air flow when flowing inside and outside the speaker. At the same time, in order to avoid the sound leakage holes 14 on both sides of the first speaker 11 and the second speaker 12 being blocked by the inner wall of the accommodating cavity 23, the fixing frame 3 is used in this embodiment so that the first surface 171 and the second surface 172 can maintain a distance from the accommodating cavity 23.

[0104] In some embodiments, Figure 4 and Figure 6 As shown, the first speaker 11 and the second speaker 12 both have a bottom surface 15 that is away from the diaphragm 13. Fig.13 As shown, when the sound unit 1 is disposed in the accommodating cavity 23 , a sound guide gap 16 is formed between the bottom surface 15 and the inner wall of the accommodating cavity 23 .

[0105] It is easy to understand that in this embodiment, the second surface 172 is located on the side of the first speaker 11 away from the first sound outlet 21, and the second surface 172 is located on the side of the second speaker 12 away from the second sound outlet 22. In order to ensure that the airflow flowing through the sound leakage holes 14 of the first surface 171 and the second surface 172 can be discharged from the accommodating cavity 23 in time, a sound guide gap 16 is formed between the side wall of the accommodating cavity 23 opposite to the bottom surface 15 and the bottom surface 15, and the sound guide gap 16 can make the airflow flowing through the sound leakage holes 14 of the second surface 172 flow to the first sound outlet 21 (such as Fig.15 As shown by arrow a2 in the figure) or the second sound outlet 22.

[0106] Furthermore, if Figure 3 As shown, the sound leakage hole 14 is located on the bottom surface 15. Fig.13As shown, when the sound unit 1 is disposed in the accommodating cavity 23 , a sound guide gap 16 is formed between the bottom surface 15 and the inner wall of the accommodating cavity 23 . That is, the bottom surface 15 and the first positioning surface or the second positioning surface in the accommodating cavity 23 form the sound guide gap 16 .

[0107] Therefore, the sound leakage hole 14 in this embodiment can be connected to the first sound outlet 21 or the second sound outlet 22 through the sound guide gap 16. Thus, the sound leakage hole 14 is prevented from being blocked by the inner wall of the accommodating cavity 23, that is, the sound guide gap 16 corresponding to the bottom surface 15 of the first speaker 11 is connected to the second compartment 232, and the guide gap corresponding to the bottom surface 15 of the second speaker 12 is connected to the first compartment 231.

[0108] In some embodiments, the sound leakage holes 14 are only provided on the first surface 171 and the second surface 172, and the gap between the bottom surface 15 of the first speaker 11 and the second speaker 12 and the accommodating cavity 23 can be eliminated, and the bottom surface 15 and the accommodating cavity 23 are directly abutted or sealed by sealing foam, thereby further reducing the size of the temple in the thickness direction.

[0109] In some embodiments, Figure 4 As shown, the peripheral side surface 17 further includes a third surface 173. The third surface 173 extends from the first surface 171 to the second surface 172. Fig.13 As shown, the two third surfaces 173 are located at positions opposite to each other from the first speaker 11 and the second speaker 12 .

[0110] In this embodiment, the first surface 171, the second surface 172 and the third surface 173 of the first speaker 11 and the second speaker 12 are spaced apart from the inner wall of the accommodating cavity 23, so that the airflow passing through the sound leakage hole 14 can flow along the third surface 173 to the first sound outlet 21 or the second sound outlet 22, thereby increasing the flow path of the airflow in the accommodating cavity 23.

[0111] Specifically, Fig.13 As shown, the peripheral side surface 17 also includes a fourth surface, and the two fourth surfaces of the first speaker 11 and the second speaker 12 are arranged opposite to each other. When the first speaker 11 and the second speaker 12 are arranged on the fixing frame 3, the two fourth surfaces abut against the spacer block 32. Fig.13In the direction shown, the first sound cavity and the second sound cavity are circumferentially symmetrically arranged relative to the spacer block 32, so that the first sound cavity and the second sound cavity have the same shape, so as to improve the consistency of the phase and amplitude of the sound waves transmitted by the first sound outlet 21 and the second sound outlet 22, thereby better improving the head-mounted device's ability to suppress sound leakage. That is, the sound waves generated by the first speaker 11 and the second speaker 12 have the same propagation path in the first sound cavity and the second sound cavity, and the first sound outlet 21 and the second sound outlet 22 have the same phase and amplitude of the sound waves transmitted, which can achieve mutual cancellation in the far field position, providing privacy for the head-mounted device.

[0112] Preferably, if Figure 6 As shown, the mounting arm 33 further includes a first retaining wall 331, a second retaining wall 332 and a third retaining wall 333 protruding from the edge of the mounting surface 31, and the first surface 171, the second surface 172 and the third surface 173 are respectively arranged corresponding to the first retaining wall 331, the second retaining wall 332 and the third retaining wall 333. Both ends of the third retaining wall 333 are connected to the ends of the first retaining wall 331 and the second retaining wall 332, and the length direction of the third retaining wall 333 is perpendicular to the first retaining wall 331 and the second retaining wall 332. The ends of the first retaining wall 331 and the second retaining wall 332 away from the third retaining wall 333 extend to the spacer block 32.

[0113] In this embodiment, the first retaining wall 331, the second retaining wall 332, the third retaining wall 333 and the spacer block 32 surround the mounting surface 31 to form a mounting groove 35. The first retaining wall 331, the second retaining wall 332 and the third retaining wall 333 can position the first speaker 11 and the second speaker 12, and the first surface 171, the second surface 172 and the third surface 173 can further maintain a gap with the inner wall of the accommodating cavity 23. Fig.14 The arrow a1 in the figure shows the direction of the airflow from the sound leakage hole 14 of the second surface 172. The inner wall of the accommodating cavity 23 and the first surface 171, the second surface 172 and the third surface as well as the first retaining wall 331, the second retaining wall 332 and the third retaining wall 333 form an air passage, which can facilitate the discharge of air in the second speaker 12. At the same time, the air passage can also cooperate with the sound guide gap 16 to conduct the sound waves of the sound leakage hole 14 of the second surface 172.

[0114] In some embodiments, Figure 6-Figure 8 As shown, the fixing frame 3 further includes two spacer bars 36. The two spacer bars 36 are arranged corresponding to the two mounting arms 33, and the spacer bars 36 have positioning edges 363. The spacer bars 36 are convexly arranged on the side of the corresponding mounting arm 33 away from the mounting surface 31. Fig.12 As shown, when the fixing frame 3 is disposed in the accommodating cavity 23 , the two positioning edges 363 abut against the inner wall of the accommodating cavity 23 .

[0115] Specifically, the first shell 44 has a first positioning surface, and the second shell 45 has a second positioning surface. When the first shell 44 and the second shell 45 are buckled together, the first positioning surface is arranged opposite to the second positioning surface. The two positioning edges 363 located on the two mounting arms 33 are respectively in contact with the first positioning surface and the second positioning surface, thereby keeping the fixing frame 3 and the temple 4 fixed together. At the same time, the spacer bar 36 is arranged on the side away from the mounting surface 31. When the speaker is arranged on the mounting surface 31, the spacer bar 36 can separate the diaphragm 13 from the inner wall of the accommodating cavity 23, thereby providing sufficient flow space for the airflow generated when the diaphragm 13 vibrates.

[0116] In some embodiments, Fig.14 As shown, the number of the first sound outlets 21 and the number of the second sound outlets 22 are both two, the two first sound outlets 21 are respectively arranged corresponding to the two mounting arms 33, and the two second sound outlets 22 are respectively arranged corresponding to the two mounting arms 33. In this embodiment, the two first sound outlets 21 are simultaneously communicated with the first compartment 231, and the two second sound outlets 22 are simultaneously communicated with the second compartment 232.

[0117] Further reference Figure 5 and 8 As shown, the spacer bar 36 is disposed around a partial area of ​​the circumference of the window 34 , and the spacer bar 36 includes a first stop bar 361 and a second stop bar 362 , and the two second stop bars 362 are located at ends of the two mounting arms 33 that are away from each other.

[0118] The first stopper 361 and the first sound outlet 21 corresponding to the same mounting arm 33 are arranged opposite to each other, and the first stopper 361 is located on the side of the window 34 away from the first sound outlet 21. The first stopper 361 and the second stopper 362 are used to abut the fixing frame 3 against the receiving groove, so as to position the fixing frame 3.

[0119] In some embodiments, the spacer bars may include only the first stopper bars 361 or the second stopper bars 362 .

[0120] Specifically, Figure 14-15 As shown, the two first sound outlets 21 are arranged at intervals along the length direction of the temple 4, and are respectively arranged corresponding to the diaphragm 13 of the first speaker 11 and the sound leakage hole 14 of the second speaker 12. The two second sound outlets 22 are arranged at intervals along the length direction of the temple 4, and are respectively arranged corresponding to the diaphragm 13 of the second speaker 12 and the sound leakage hole 14 of the first speaker 11.

[0121] In this embodiment, the two first sound outlets 21 can be used to simultaneously propagate the sound waves generated by the first speaker 11 and the sound leakage hole 14 of the second speaker 12. In contrast, the two second sound outlets 22 can be used to simultaneously propagate the sound waves generated by the first speaker 11 and the sound leakage hole 14 of the second speaker 12. Thus, the size of the sound outlet of the head mounted device is increased, and the loudness of the sound unit 1 is improved.

[0122] Preferably, if Figure 5 and Figure 8 As shown, the spacer bar 36 is arranged at the edge of the mounting arm 33, and the first stop bar 361 and the second stop bar 362 are vertically connected. The outer edge of the diaphragm 13 is a rounded rectangle, the second stop bar 362 corresponds to the short side of the rounded rectangle, and the first stop bar 361 corresponds to the long side of the rounded rectangle. In the arrangement direction of the two mounting surfaces 31, the two first stop bars 361 and the two second stop bars 362 are arranged around the edge of the fixing frame 3. Therefore, when the two spacer bars 36 are respectively in contact with the first positioning surface and the second positioning surface, it can ensure that the sound unit 1 is stably arranged in the accommodating cavity 23 to prevent the sound unit 1 from shaking.

[0123] Alternatively, if Figure 6 As shown, the fixing frame 3 further includes a positioning plate 37, which is protruding from the side of the fixing frame 3 facing the second housing 45, and the positioning plate 37 is opposite to and spaced from the third surface 173 of the second speaker 12. When the second housing 45 is buckled with the first housing 44, the positioning plate 37 and the spacing bar 36 will abut against the second housing 45 at the same time to achieve the positioning of the fixing frame 3 and the second housing 45. That is, the plate edge of the positioning plate 37 away from the mounting surface 31 and the edge of the spacing bar 36 away from the mounting surface 31 are in the same plane.

[0124] In some embodiments, Figure 2 , Fig.11 , Fig.12 and Fig.14 As shown, the accommodating portion 2 further includes a first stopper 241 and a second stopper 242 , which are protruded from the inner wall of the accommodating cavity 23 , the first stopper 241 is located between the two first sound outlets 21 , and the second stopper 242 is located between the two second sound outlets 22 .

[0125] When the positioning edge 363 abuts against the inner wall of the accommodating cavity 23 , the first stopper 241 and the second stopper 242 abut against the two mounting arms 33 respectively and correspond to the spacer block 32 .

[0126] In this embodiment, the first stopper 241 is disposed close to the first sound outlet 21 , and the second stopper 242 is disposed close to the second sound outlet 22 . Thus, under the clamping of the first stopper 241 and the second stopper 242 , the fixing frame 3 can be stably disposed in the accommodating cavity 23 to prevent the fixing frame 3 from tilting.

[0127] In some embodiments, Figure 8-Figure 9 As shown, the mounting groove 35 has a notch 351. The peripheral side surface 17 also includes a second surface 172, and the second surface 172 and the first surface 171 of the same peripheral side surface 17 are separated from each other. When the first speaker 11 and the second speaker 12 are clamped in the mounting groove 35, the second surface 172 abuts against the inner wall of the accommodating cavity 23 through the notch 351.

[0128] In this embodiment, the sound leakage hole 14 is only provided on the first surface 171, that is, no sound leakage hole 14 is provided on the second surface 172. When the first speaker 11 and the second speaker 12 are provided in the mounting groove 35, the second surface 172 is exposed outside the mounting groove 35, so that the distance between the first surface 171 and the corresponding first sound outlet 21 or the corresponding second sound outlet 22 is increased, which helps the sound emitted by the first speaker 11 to propagate from the first sound outlet 21 corresponding to the second speaker 12 (such as Fig.15 As shown by arrow a3 in the figure, the sound emitted by the second speaker 12 is propagated from the second sound outlet 22 corresponding to the first speaker 11.

[0129] Specifically, Figure 8 As shown, the mounting arm 33 further includes a first retaining wall 331 and a third retaining wall 333 protruding from the edge of the mounting surface 31, and the first surface 171 and the third surface 173 are respectively arranged corresponding to the first retaining wall 331 and the third retaining wall 333. One end of the third retaining wall 333 is vertically connected to the end of the first retaining wall 331, and the other end of the third retaining wall 333 extends to the edge of the mounting surface 31 along a straight line.

[0130] Preferably, the first retaining wall 331, the second retaining wall 332, the third retaining wall 333 and the positioning plate 37 in the above embodiment all have a rubber-coated surface, and the rubber-coated surface is located on the outer peripheral surface of the fixing frame 3, that is, on the side away from the window 34 (such as Fig. 9 The operator can apply adhesive on the adhesive surface to ensure that the sound unit 1 is stably adhered to the receiving groove. At the same time, the adhesive can also prevent the sound waves of the first sound cavity and the second sound cavity from interfering with each other.

[0131] In this embodiment, the first retaining wall 331, the third retaining wall 333 and the spacer block 32 surround the mounting surface 31 to form a mounting groove 35. The first retaining wall 331, the third retaining wall 333, the spacer block 32 and the inner wall of the accommodating cavity 23 can position the first speaker 11 and the second speaker 12, while the first surface 171 can also maintain a gap with the inner wall of the accommodating cavity 23. Furthermore, the structure of the mounting groove 35 can be further simplified.

[0132] In some embodiments, Fig.13 As shown, in the length direction of the temple 4, the two diaphragms 13 are completely staggered, and the projections of the first loudspeaker 11 and the second loudspeaker 12 partially overlap.

[0133] Specifically, the diaphragm 13 of the second speaker 12 faces the head of the wearer, and the diaphragm 13 of the second speaker 12 is away from the head of the wearer. In the arrangement of the sound unit 1 in this embodiment, the first speaker 11 and the second speaker 12 are arranged in sequence along the length direction of the temple 4, and the spacer block 32 is located between the first speaker 11 and the second speaker 12. Thus, the size of the sound unit 1 in the direction perpendicular to the mounting surface 31 is reduced.

[0134] Furthermore, if Figure 2 and Fig.13 As shown, the two diaphragms 13 are arranged in opposite directions. In this embodiment, the diaphragms of the first speaker 11 and the second speaker 12 will move in one direction at the same time, and the first speaker 11 and the second speaker 12 can be regarded as a whole. The sound waves conducted by the first sound outlet 21 are conducted to the human ear, and the sound waves conducted by the second sound outlet 22 can be offset by the sound waves conducted by the first sound outlet at a distance, thereby improving the privacy of the head-mounted device.

[0135] In some embodiments, Figure 11-Figure 15 As shown, there are two first sound outlets 21 and two second sound outlets 22. The two first sound outlets 21 are respectively arranged corresponding to the two mounting arms 33, and the two second sound outlets 22 are respectively arranged corresponding to the two mounting arms 33.

[0136] The first speaker 11 and the second speaker 12 both have sound leakage holes 14, the sound leakage hole 14 of the second speaker 12 is located in the first compartment 231, and the sound leakage hole 14 of the first speaker 11 is located in the second compartment 232. Thus, the two first sound outlets 21 and the two second sound outlets 22 can simultaneously play a role in sound conduction to increase the area of ​​the sound outlet.

[0137] In some embodiments, Figure 2 , Fig.13 and Fig.15As shown, the number of the first sound outlet 21 and the second sound outlet 22 are both two, and the two first sound outlets 21 are respectively arranged corresponding to the first speaker 11 and the second speaker 12, and the two second sound outlets 22 are respectively arranged corresponding to the first speaker 11 and the second speaker 12. At least part of the first speaker 11 is located in the second sound cavity and the diaphragm 13 of the first speaker 11 is exposed to the first sound cavity, and at least part of the second speaker 12 is located in the first sound cavity and the diaphragm 13 of the second speaker 12 is exposed to the second sound cavity. Therefore, the increase in the number of the first sound outlet 21 and the second sound outlet 22 helps to improve the loudness of the sound-emitting unit 1 and reduce the resistance of the airflow. The two first sound outlets 21 and the two second sound outlets 22 can conduct the sound waves generated by the first speaker 11 and the second speaker 12 in a targeted manner.

[0138] Specifically, the temple 4 also includes an ear hanging area 46, and the ear hanging area 46 is arranged adjacent to the accommodating portion 2. At the same time, the second speaker 12 is closer to the ear hanging area 46 than the first speaker 11. The second sound outlet 22 faces the bottom of the temple 4 and is adjacent to the ear hanging area 46. When the wearer wears the head mounted device, the ear hanging area 46 of the temple 4 is located at the ear of the wearer. In this form, the sound waves generated by the second speaker 12 can be directly transmitted to the ear of the wearer through the second sound outlet 22, so that the sound received by the wearer is clearer and louder.

[0139] In some embodiments, Figure 2 and Fig.12 As shown, there are two temples 4. The temples 4 have a first side surface 41, a second side surface 42, and a third side surface 43 extending in the length direction. The third side surfaces 43 of the two temples 4 are arranged opposite to each other, and the third side surface 43 is located between the first side surface 41 and the second side surface 42. The first sound outlet 21 and the second sound outlet 22 are located at the first side surface 41 and the second side surface 42, respectively, and the diaphragm 13 of the first speaker 11 or the second speaker 12 is arranged toward the third side surface 43.

[0140] In this embodiment, the first sound outlet 21 and the second sound outlet 22 are respectively oriented toward the upper and lower sides of the temple 4, so that the sound waves in the first sound cavity and the second sound cavity are propagated through the first sound outlet 21 and the second sound outlet 22, and cancel each other out within a certain range, thereby improving the sound quality of the sound unit 1 and reducing the impact of the head-mounted device on the surrounding environment. In addition, the first sound outlet 21 is arranged toward the human ear to avoid the impact of far-field cancellation on the sound at the human ear.

[0141] Further reference Fig.12 As shown, the first sound outlet 21 and the second sound outlet 22 are located on the first side surface 41 and the second side surface 42 respectively, and in the width direction of the first side surface 41 , the first sound outlet 21 and the second sound outlet 22 are away from the edges of the first side surface 41 and the second side surface 42 .

[0142] Specifically, the temple 4 further includes a protective net, and the inner wall of the accommodating cavity 23 includes a top surface and a bottom surface. The protective net is arranged on the top surface and the bottom surface of the accommodating cavity 23, and covers the first sound outlet 21 and the second sound outlet 22. The protective net can be used to prevent water, dust and other substances from entering the accommodating cavity 23 from the first sound outlet 21 and the second sound outlet 22.

[0143] Easy to understand, such as Fig.12 As shown, the spacer bar 36 and the positioning plate 37 in the above embodiment cooperate to ensure that the diaphragm 13 and the bottom surface 15 have a certain distance from the inner wall of the accommodating cavity 23, so that the first sound outlet 21 and the second sound outlet 22 can be staggered from the edge positions of the first side surface 41 and the second side surface 42 under the premise of keeping the first sound outlet 21 and the second sound outlet 22 corresponding to the diaphragm 13 and the sound leakage hole 14. When the protective net is attached to the top and bottom surfaces of the accommodating cavity 23, the protective net can be staggered from the corner position of the inner wall of the accommodating cavity 23, so that the protective net can be stably fixedly connected to the inner wall of the accommodating cavity 23.

[0144] In some embodiments, Figure 4 As shown, the first speaker 11 and the second speaker 12 both have a peripheral side surface 17 surrounding the diaphragm 13 , the sound leakage hole 14 is arranged on the peripheral side surface 17 , and a portion of the peripheral side surface 17 faces the first side surface 41 and / or the second side surface 42 .

[0145] When the sound-emitting unit 1 is disposed in the accommodating cavity 23, the sound leakage hole 14 of the first speaker 11 is disposed correspondingly to a first sound outlet 21. The sound leakage hole 14 of the second speaker 12 is disposed correspondingly to a second sound outlet 22. Thus, the sound waves emitted by the sound leakage hole 14 can be directly discharged from the sound outlet, which helps the air flow between the inside and outside of the speaker and reduces the air resistance generated in the process.

[0146] Specifically, the two first sound outlets 21 in this embodiment are respectively arranged corresponding to the first speaker 11 and the second speaker 12, and the two second sound outlets 22 are respectively arranged corresponding to the first speaker 11 and the second speaker 12. Both first sound outlets 21 are slit structures and include a first main sound outlet and a first auxiliary sound outlet, and the length of the first main sound outlet is smaller than that of the first auxiliary sound outlet.

[0147] In contrast, the two second sound outlets 22 are both slit structures and include a second main sound outlet and a second auxiliary sound outlet, and the length of the second main sound outlet is smaller than that of the second auxiliary sound outlet.

[0148] like Fig.13 As shown, in the length direction of the temple 4 , the projections of the first auxiliary sound outlet and the second main sound outlet on the mounting surface 31 coincide with each other, and the projections of the second auxiliary sound outlet and the first main sound outlet on the mounting surface 31 coincide with each other.

[0149] It is easy to understand that the head-mounted device of this embodiment belongs to an open audio device, which can make the sound entering the human ear more natural and comfortable to wear. At the same time, in order to reduce the impact of sound waves on the surrounding environment, the sound emission position and the sound leakage position of the sound unit 1 can be set oppositely, so that the sound waves below 2.5kHz can cancel each other out within a certain range.

[0150] To this end, the first secondary sound outlet and the second main sound outlet in this embodiment are arranged in opposite directions and corresponding to each other, and the second secondary sound outlet and the first main sound outlet are arranged in opposite directions and corresponding to each other. The sound waves propagating through the first sound outlet 21 and the second sound outlet 22 can achieve a far-field cancellation effect and provide privacy.

[0151] Preferably, in the arrangement direction of the first side surface 41 and the second side surface 42, the height of the sound unit 1 is configured to be 6 mm, and the distance between the first side surface 41 and the second side surface 42 is configured to be no greater than 9 mm. Thus, the height of the temple 4 is minimized to improve the comfort of the wearer. At the same time, the configuration of the first speaker 11 and the second speaker 12 increases the loudness by 6 dB compared to the loudness of a single speaker.

[0152] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A head mounted device, characterized in that: The head mounted device comprises: A temple (4) comprising a receiving portion (2), wherein the receiving portion (2) has a first sound outlet (21), a second sound outlet (22) and a receiving cavity (23); a fixing frame (3) disposed in the accommodating cavity (23) and dividing the accommodating cavity (23) into a first compartment (231) and a second compartment (232); and A sound-generating unit (1) comprises a first speaker (11) and a second speaker (12), wherein the first speaker (11) and the second speaker (12) both comprise a diaphragm (13), and the first speaker (11) and the second speaker (12) are respectively arranged on the fixing frame (3) along the length direction of the temple (4); The first speaker (11) is located in the second compartment (232), and the diaphragm (13) of the first speaker (11) is connected to the first sound outlet (21) through the first compartment (231); the second speaker (12) is located in the first compartment (231), and the diaphragm (13) of the second speaker (12) is connected to the second sound outlet (22) through the second compartment (232).

2. The head mounted device according to claim 1, characterized in that: The fixing frame (3) comprises two mounting surfaces (31) and a spacer block (32); the two mounting surfaces (31) extend from the spacer block (32) to the two ends of the temple (4); and in the cross-sectional direction of the length of the temple (4), the two mounting surfaces (31) face oppositely and are arranged relative to each other; the first loudspeaker (11) and the second loudspeaker (12) are respectively arranged on the two mounting surfaces (31).

3. The head mounted device according to claim 2, characterized in that: The fixing frame (3) further comprises two mounting arms (33), wherein the mounting arms (33) have the mounting surfaces (31), the two mounting surfaces (31) are parallel, the mounting surfaces (31) are provided with windows (34), and the windows (34) penetrate the mounting arms (33); The first loudspeaker (11) and the second loudspeaker (12) are respectively attached to the two mounting surfaces (31), and the two diaphragms (13) are respectively exposed to the first compartment (231) and the second compartment (232) through the two windows (34).

4. The head mounted device according to claim 3, characterized in that: The mounting arm (33) has a mounting groove (35), and the bottom of the mounting groove (35) is the mounting surface (31); The first speaker (11) and the second speaker (12) both comprise a sound leakage hole (14); the first speaker (11) and the second speaker (12) are respectively mounted in the two mounting grooves (35); and the sound leakage hole (14) is located outside the mounting groove (35).

5. The head mounted device according to claim 3, characterized in that: The fixing frame also includes: Two spacer bars (36) are arranged corresponding to the two mounting arms (33), the spacer bars (36) having positioning edges (363), and the spacer bars (36) are protrudingly arranged on a side of the corresponding mounting arm (33) away from the mounting surface (31); The fixing frame (3) is arranged in the accommodating cavity (23), and the two positioning edges (363) abut against the inner wall of the accommodating cavity (23).

6. The head mounted device according to claim 5, characterized in that: The number of the first sound outlets (21) and the number of the second sound outlets (22) are both two, the two first sound outlets (21) are respectively arranged corresponding to the two mounting arms (33), and the two second sound outlets (22) are respectively arranged corresponding to the two mounting arms (33); The spacer bar (36) is arranged around a partial area of ​​the circumference of the window (34), and the spacer bar (36) comprises a first stop bar (361) and a second stop bar (362), and the two second stop bars (362) are located at ends of the two mounting arms (33) that are away from each other; The first blocking strip (361) and the first sound outlet (21) corresponding to the same mounting arm (33) are arranged opposite to each other, and the first blocking strip (361) is located on a side of the window (34) away from the first sound outlet (21).

7. The head mounted device according to claim 6, characterized in that: The accommodating portion (2) further comprises a first stopper (241) and a second stopper (242), wherein the first stopper (241) and the second stopper (242) are protrudingly arranged on the inner wall of the accommodating cavity (23), the first stopper (241) is located between the two first sound outlets (21), and the second stopper (242) is located between the two second sound outlets (22); The positioning edge (363) abuts against the inner wall of the accommodating cavity (23), and the first stop block (241) and the second stop block (242) respectively abut against two mounting arms (33) and correspond to the spacer block (32).

8. The head mounted device according to claim 3, characterized in that: The number of the temples (4) is two, and the temples (4) have a first side surface (41), a second side surface (42), and a third side surface (43) extending along the length direction, the third side surfaces (43) of the two temples (4) are arranged opposite to each other, and the third side surface (43) is located between the first side surface (41) and the second side surface (42); The first sound outlet (21) and the second sound outlet (22) are located on the first side surface (41) and the second side surface (42) respectively, and the diaphragm (13) faces the third side surface (43).

9. The head mounted device according to claim 8, characterized in that: The number of the first sound outlets (21) and the number of the second sound outlets (22) are both two, the two first sound outlets (21) are respectively arranged corresponding to the two mounting arms (33), and the two second sound outlets (22) are respectively arranged corresponding to the two mounting arms (33); The first speaker (11) and the second speaker (12) both have a sound leakage hole (14); the sound leakage hole (14) of the second speaker (12) is located in the first compartment (231), and the sound leakage hole (14) of the first speaker (11) is located in the second compartment (232).

10. The head mounted device according to claim 9, characterized in that: The first loudspeaker (11) and the second loudspeaker (12) both have a bottom surface (15) that is away from the diaphragm (13), and the sound leakage hole (14) is located on the bottom surface (15); The sound-generating unit (1) is arranged in the accommodating cavity (23), and a sound-conducting gap (16) is formed between the bottom surface (15) and the inner wall of the accommodating cavity (23).

11. The head mounted device according to claim 9, characterized in that: The first loudspeaker (11) and the second loudspeaker (12) both have a peripheral side surface (17) surrounding the diaphragm (13); the sound leakage hole (14) is arranged on the peripheral side surface (17); and a portion of the peripheral side surface (17) faces the first side surface (41) and / or the second side surface (42); The sound-generating unit (1) is arranged in the accommodating cavity (23), and the sound leakage hole (14) corresponds to one of the first sound outlets (21) and one of the second sound outlets (22).

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