Head-mounted display device

Abstract

The invention discloses head-mounted display equipment, which comprises a display main body, glasses legs and earphones, and is characterized in that the glasses legs are connected with the display main body and are provided with mounting structures; the earphone is provided with a sound outlet hole, the earphone is detachably connected to the mounting structure and is provided with a loudspeaker position and a wearing position, the earphone is mounted on the mounting structure at the loudspeaker position and the sound outlet hole faces the ear of the user, and the earphone is separated from the mounting structure and can be worn on the ear at the wearing position. According to the technical scheme of the invention, the head-mounted display equipment can meet the audio playing demand and the privacy protection demand of a user at the same time.

Description

Technical Field

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

[0002] The acoustic structure of existing head-mounted display devices, such as AR (Augmented Reality) glasses, is usually an external structure set on the temples, which causes the sound to spread all around and cannot protect the privacy of users. Some AR glasses products also use earphones as the acoustic structure. Although they can meet the requirements of privacy protection, they cannot achieve the effect of external sound. Therefore, the existing head-mounted display devices cannot fully meet the different usage needs of users, and it is urgent to propose a solution to the above defects. Summary of the invention

[0003] The main purpose of the present invention is to provide a head-mounted display device, aiming to enable the head-mounted display device to meet both the user's audio playback needs and privacy protection needs.

[0004] To achieve the above-mentioned object, the head mounted display device proposed by the present invention comprises:

[0005] Display the subject;

[0006] A temple connected to the display body and provided with a mounting structure; and

[0007] An earphone having a sound outlet hole, the earphone being detachably connected to the mounting structure and having an external speaker position and a wearing position. In the external speaker position, the earphone is mounted on the mounting structure and the sound outlet hole faces the ear of the user. In the wearing position, the earphone is detached from the mounting structure and can be worn on the ear.

[0008] Optionally, the display body is provided with a first wireless communication module, and the headset is provided with a second wireless communication module corresponding to the first wireless communication module.

[0009] Optionally, the mounting structure includes a first conductive terminal, the earphone is provided with a second conductive terminal corresponding to the first conductive terminal, and in the external position, the first conductive terminal is electrically connected to the second conductive terminal.

[0010] Optionally, the mounting structure is arranged at an end of the temple away from the display body.

[0011] Optionally, the earphone includes a sound-emitting part and a mounting part, the sound outlet is arranged in the sound-emitting part, and the mounting structure also includes a receiving groove, and in the external speaker position, the mounting part is at least partially embedded in the receiving groove.

[0012] Optionally, a mounting post is protruding from the bottom surface of the receiving groove, and the mounting post extends along the installation direction of the earphone. The first conductive terminal is arranged on the side of the mounting post, and the mounting portion is provided with a mounting hole corresponding to the mounting post, and the second conductive terminal is arranged on the hole wall surface of the mounting hole.

[0013] Optionally, a first clamping groove is further provided on the side surface of the mounting column, and a first clamping protrusion is provided on the hole wall surface of the mounting hole corresponding to the first clamping groove, and the first clamping protrusion can be clamped in the first clamping groove.

[0014] Optionally, at least one of the first conductive terminal and the second conductive terminal is configured as a ring structure arranged around the axis of the mounting post.

[0015] Optionally, at least one of the first conductive terminal and the second conductive terminal is configured as an elastic structure.

[0016] Optionally, the first latching protrusion and the first latching groove are configured as an annular structure arranged around the axis of the mounting column, and the first latching protrusion is configured as an elastic structure.

[0017] Optionally, the mounting structure further includes a first magnetic component, and the earphone is provided with a second magnetic component corresponding to the first magnetic component, and the first magnetic component can magnetically attract the second magnetic component.

[0018] Optionally, the temple is further provided with a mounting cavity spaced apart from the receiving groove, and the first magnetic member is provided in the mounting cavity and corresponds to the bottom wall of the receiving groove.

[0019] Optionally, the first magnetic member extends along the length direction of the receiving groove and corresponds to an end of the receiving groove away from the mounting column.

[0020] Optionally, a clearance hole is provided on the bottom wall of the receiving groove, and the temple is also provided with an installation cavity connected to the clearance hole, the first conductive terminal is provided in the installation cavity, and the second conductive terminal is provided at one end of the installation portion extending into the installation cavity.

[0021] Optionally, the mounting portion is further provided with a second slot at one end extending into the mounting cavity, and the mounting structure further includes a locking mechanism, the locking mechanism includes a hook movably provided in the mounting cavity, the hook is provided with a second locking protrusion, and the second locking protrusion can be locked in the second slot.

[0022] Optionally, the hook is rotatably arranged in the mounting cavity, and the locking mechanism also includes an unlocking key connected to one end of the hook, and an elastic reset member connecting the hook and the inner wall of the mounting cavity, the second latching protrusion is arranged at the other end of the hook, and the temple is also provided with an unlocking hole connected to the mounting cavity, the unlocking key slides and appears in the unlocking hole, and the elastic reset member is used to make the second latching protrusion have a tendency to move closer to the second slot.

[0023] Optionally, the second card slot extends along the circumference of the mounting portion, the second conductive terminal includes a conductive plate arranged on the end surface of the mounting portion, and a conductive ring arranged on the second card slot, the first conductive terminal includes a spring pin and a spring hook, the needle head of the spring pin faces the middle of the clearance hole, the spring hook is arranged on the side of the clearance hole, and can be elastically inserted into the second card slot to abut the conductive ring.

[0024] Optionally, two of the temples and two of the earphones are provided, the two temples are provided at opposite ends of the display body, and the two earphones are provided at the two temples.

[0025] Optionally, in the external speaker position, the length of the sound outlet from the entrance of the ear canal of the ear ranges from 20 mm to 60 mm.

[0026] Optionally, a reference conical surface is rotated around the center line of the sound outlet, the cone angle of the reference conical surface is greater than 0° and less than or equal to 120°, and is gradually expanded in the direction away from the earphone; in the external speaker position, the reference conical surface covers the entrance of the ear canal of the ear.

[0027] In the technical solution of the present invention, when the user is using the audio playback function of the device and needs to protect privacy, such as making a voice call, the earphone can be removed from the mounting structure and worn on the ear. At this time, the earphone sound outlet is located at the entrance of the ear canal of the ear, which can effectively reduce the risk of sound leakage, thereby realizing the privacy protection function. When the user needs the audio external speaker function, for example, when the ear is uncomfortable due to wearing the earphone for a long time, the earphone can be installed on the temple. At this time, the earphone sound outlet is facing the ear, and the sound can reach the entrance of the ear canal with a shorter propagation path, thereby realizing the audio external speaker function. In this way, the user can flexibly switch between the audio external speaker function and the privacy protection function according to actual needs, thereby satisfying the user's audio external speaker needs and privacy protection needs, that is, fully meeting the different usage needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 A schematic structural diagram of an embodiment of a head mounted display device of the present invention;

[0030] Figure 2 for Figure 1 Middle is a schematic diagram of the head mounted display device when worn on the head from a side view, with the earphones in the external speaker position;

[0031] Figure 3 for Figure 1 Middle is a schematic diagram of the head mounted display device when worn on the head from a rearward perspective, with the earphones in the external speaker position;

[0032] Figure 4 for Figure 1 Another schematic diagram of the head mounted display device when worn on the head, where the earphones are in the wearing position (worn on the ears);

[0033] Figure 5 for Figure 1 A schematic diagram of the installation of the temples and earphones of the head mounted display device;

[0034] Figure 6 for Figure 5 Exploded view of the parts of the middle temple and earphone;

[0035] Figure 7 for Figure 5 A cross-sectional view of the head mounted display device, wherein the cross-sectional plane passes through the axis of the mounting post and extends along the length direction of the receiving slot;

[0036] Figure 8 A schematic diagram of installing temples and earphones of another embodiment of a head mounted display device of the present invention;

[0037] Fig. 9 for Figure 8 Schematic diagram of the middle earphone after being installed into the temple;

[0038] Fig.10 for Figure 8 Exploded view of the parts of the earpiece and temples;

[0039] Fig.11 for Fig. 9 A cross-sectional view of the head mounted display device, wherein the cross-sectional plane passes through both the axis of the receiving slot and the unlocking hole.

[0040] Description of Figure Numbers:

[0041]

[0042]

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The present invention provides a head mounted display device. Figures 1 to 11 ,in, Figures 1 to 7 is a schematic structural diagram of an embodiment of a head mounted display device of the present invention, Figures 8 to 11 FIG. 4 is a schematic structural diagram of another embodiment of a head mounted display device of the present invention.

[0049] Please refer to Figures 1 to 11 In some embodiments of the present invention, the head mounted display device includes:

[0050] Display body 101;

[0051] The temple 102 is connected to the display body 101 and is provided with a mounting structure 20; and

[0052] The earphone 30 has a sound outlet 30a. The earphone 30 can be detachably connected to the mounting structure 20 and has an external speaker position and a wearing position. In the external speaker position, the earphone 30 is mounted on the mounting structure 20 and the sound outlet 30a faces the ear of the user. In the wearing position, the earphone 30 is detached from the mounting structure 20 and can be worn on the ear.

[0053] In the technical solution of the present invention, when the user is using the audio playback function of the device and needs to protect privacy, such as making a voice call, the earphone 30 can be removed from the mounting structure 20 and worn on the ear. At this time, the sound outlet 30a of the earphone 30 is located at the entrance of the ear canal of the ear, which can well reduce the risk of sound leakage, thereby realizing the privacy protection function. When the user needs the audio external speaker function, for example, when the ear is uncomfortable due to wearing the earphone 30 for a long time, the earphone 30 can be installed on the temple 102. At this time, the sound outlet 30a of the earphone 30 faces the ear and can make the sound reach the entrance of the ear canal with a shorter propagation path, thereby realizing the audio external speaker function. In this way, the user can flexibly switch between the audio external speaker function and the privacy protection function according to actual needs, thereby satisfying the user's audio external speaker needs and privacy protection needs, that is, fully meeting the different usage needs of the user.

[0054] In some embodiments, in the external speaker position, the length of the sound outlet 30a from the ear canal entrance of the ear is in the range of 20mm to 60mm. In this way, the sound intensity during the external speaker function can be guaranteed, thereby improving the effect of the external speaker function. For example, if a speaker with a specification of Ø8mm to Ø15mm is provided in the earphone 30, the sound transmitted from the sound outlet 30a of the earphone 30 to the ear can reach a sound intensity of 50DB to 90DB when it is transmitted to the ear canal entrance, that is, it can reach the sound intensity achieved by the prior art of setting the external speaker hole 30a on the temple 102.

[0055] It should be noted that the sound outlet 30a faces the ear of the user. Specifically, a reference conical surface is constructed by rotating the center line of the sound outlet 30a. The cone angle of the reference conical surface is greater than 0° and less than or equal to 120°, and is gradually expanded in the direction away from the earphone 30. In the external position, the reference conical surface covers the entrance of the ear canal of the ear. For example, the cone angle of the reference conical surface is 50°, 70° or 90°. It can be understood that the reference conical surface can be used to indicate the orientation of the sound outlet 30a. By limiting the orientation of the sound outlet 30a, the ear of the user can fall into the orientation range of the sound outlet 30a after wearing the device, which is beneficial to improve the sound intensity of the sound waves propagating from the sound outlet 30a to the entrance of the ear canal. Of course, in other embodiments, the cone angle of the reference conical surface can also be greater than 120° and less than 180°.

[0056] In some embodiments, the display body 101 is provided with a first wireless communication module, and the earphone 30 is provided with a second wireless communication module corresponding to the first wireless communication module. In this way, wireless communication can be achieved between the earphone 30 and the display body 101, so as to transmit the audio signal on the display body 101 to the earphone 30, which is more convenient for the user to wear and use the earphone 30, and can save the data transmission line between the earphone 30 and the display body 101, thereby simplifying the structure of the device. It is worth mentioning that the earphone 30 can also be connected to other devices through the second wireless communication module and used as an independent wireless earphone 30, for example, it can wirelessly communicate with mobile terminals such as mobile phones.

[0057] Specifically, the first wireless communication module and the second wireless communication module are configured as Bluetooth modules. Further optionally, two temples 102 and two earphones 30 are provided, and the two temples 102 are respectively arranged at opposite ends of the display body 101, and the two earphones 30 are respectively arranged at the two temples 102. That is, the two earphones 30 constitute a pair of TWS (True Wireless Stereo) earphones 30, which can improve the user experience. Of course, in other embodiments, the first wireless communication module and the second wireless communication module can also be configured in other forms, such as Wi-Fi wireless communication modules.

[0058] Please refer to Figures 5 to 11 In some embodiments, the mounting structure 20 includes a first conductive terminal 21, and the earphone 30 is provided with a second conductive terminal 33 corresponding to the first conductive terminal 21. In the external position, the first conductive terminal 21 is electrically connected to the second conductive terminal 33. In this way, when the earphone 30 is in the external position, the mounting structure 20 can also charge the earphone 30, that is, to improve the endurance of the earphone 30. In other words, the charging and storage of the earphone 30 does not require an additional charging box, which avoids the problem that the user cannot use the earphone 30 because the charging box cannot be found, and the user does not need to purchase and carry an additional charging box, thereby improving the user experience.

[0059] In some embodiments, the mounting structure 20 is disposed at one end of the temple 102 away from the display body 101. In this way, the head mounted display device can be prevented from interfering with the fixation and electrical connection of the earphone 30 during the wearing operation. Optionally in this embodiment, the sound outlet 30a of the earphone 30 is disposed toward the display body 101. Of course, in other embodiments, the mounting structure 20 may also be disposed in the middle of the temple 102 or at one end close to the display body 101. Further, optionally, the sound outlet 30a of the earphone 30 may correspond to the middle of the temple 102 and be disposed away from the display body 101.

[0060] Please refer to Figures 5 to 11 In some embodiments, the earphone 30 includes a sound-emitting portion 31 and a mounting portion 32, the sound outlet 30a is provided in the sound-emitting portion 31, and the mounting structure 20 further includes a receiving groove 22, and in the external position, the mounting portion 32 is at least partially embedded in the receiving groove 22. In this way, not only can the volume of the head-mounted display device be reduced, but also the stability of the positioning and installation of the earphone 30 can be improved by utilizing the outer contour adaptation relationship between the mounting portion 32 and the receiving groove 22, thereby improving the orientation stability of the sound outlet 30a. Of course, in other embodiments, the receiving groove 22 may not be provided.

[0061] Specifically, there are many arrangements of the receiving slots 22. For example, please refer to Figures 4 to 7 In one embodiment, the receiving groove 22 is disposed on the side of the temple 102 away from the display body 101, that is, when the user wears the head mounted display device, the receiving groove 22 is located on the side of the temple 102 away from the user's head. In this way, it is convenient for the user to install and remove the earphone 30. Please refer to Figures 8 to 11 In another embodiment, the receiving groove 22 is provided on the end surface of the temple 102 away from the display body 101. Of course, in other embodiments, the receiving groove 22 can also be provided at other positions of the temple 102, for example, on the upper side of the temple 102.

[0062] Please refer to Figures 4 to 7 In one embodiment, optionally, a mounting post 23 is convexly provided on the bottom surface of the receiving groove 22, and the mounting post 23 extends along the installation direction of the earphone 30. The first conductive terminal 21 is provided on the side of the mounting post 23. The mounting portion 32 is provided with a mounting hole 34 corresponding to the mounting post 23, and the second conductive terminal 33 is provided on the hole wall of the mounting hole 34. In this way, when the earphone 30 is assembled to the receiving groove 22 along the installation direction, the mounting hole 34 and the mounting post 23 cooperate to not only play a guiding role, but also enable the second conductive terminal 33 and the first conductive terminal 21 to automatically abut and be electrically connected after the earphone 30 is assembled in place. Of course, in other embodiments, the first conductive terminal 21 can also be provided on the bottom surface of the receiving groove 22, and the mounting post 23 only plays a guiding and positioning role.

[0063] In the embodiment where the receiving groove 22 is arranged on the side of the temple 102 away from the display body 101, the cross-sectional shape of the receiving groove 22 perpendicular to its length direction can be a regular shape such as an oval, an elliptical, a convex polygon or a concave polygon, or other irregular shapes; similarly, the cross-sectional shape of the receiving groove 22 perpendicular to the axis of the mounting column 23 can also be any shape, and the present application does not make any specific limitation on this.

[0064] Please refer to Figures 4 to 7 In one embodiment, optionally, a first clamping groove 231 is further provided on the side of the mounting post 23, and a first clamping protrusion 341 is provided on the hole wall surface of the mounting hole 34 corresponding to the first clamping groove 231, and the first clamping protrusion 341 can be clamped in the first clamping groove 231. In this way, the installation stability of the earphone 30 can be further improved, thereby preventing the earphone 30 from accidentally falling off the temple 102 in the opposite direction of the installation direction. Of course, in other embodiments, the first clamping protrusion 341 and the first clamping groove 231 may not be provided, and the elastic clamping fit between the first conductive terminal 21 and the second conductive terminal 33 can also reduce the risk of accidental slipping of the earphone 30.

[0065] In one embodiment, optionally, at least one of the first conductive terminal 21 and the second conductive terminal 33 is configured as a ring structure arranged around the axis of the mounting post 23. In this way, after the earphone 30 rotates around the axis of the mounting post 23 by a certain angle, the first conductive terminal 21 and the second conductive terminal 33 can still maintain a good electrical connection relationship, thereby improving the charging stability and reliability of the earphone 30. It should be noted that the ring structure does not specifically refer to a complete ring structure, but also includes a ring structure with an opening on one side.

[0066] In one embodiment, at least one of the first conductive terminal 21 and the second conductive terminal 33 is optionally configured as an elastic structure, so that the installation portion 32 can be easily inserted and removed from the installation hole 34, and a good abutting relationship between the first conductive terminal 21 and the second conductive terminal 33 can be ensured.

[0067] In one embodiment, optionally, the first latching protrusion 341 and the first latching groove 231 are configured as an annular structure arranged around the axis of the mounting post 23, and the first latching protrusion 341 is configured as an elastic structure. In this way, the plugging and unplugging operation of the earphone 30 is more convenient and labor-saving, and the installation stability of the earphone 30 can be improved. Of course, in other embodiments, the first latching protrusion 341 can also be configured as a block structure.

[0068] Specifically, optionally, the first conductive terminal 21, the second conductive terminal 33 and the first clamping protrusion 341 are all configured as elastic metal to enable them to have elastic deformation ability and improve their service life. Of course, in other embodiments, the first conductive terminal 21 and the second conductive terminal 33 can also be other materials that can conduct electricity and deform elastically, and the first clamping protrusion 341 can also be a material that can deform elastically, and this application does not make specific limitations on this.

[0069] In one embodiment, the mounting structure 20 may further include a first magnetic member 24, and the earphone 30 may be provided with a second magnetic member (not shown in the drawings) corresponding to the first magnetic member 24, and the first magnetic member 24 may magnetically attract the second magnetic member. In this way, the mounting stability of the earphone 30 may be further improved, and the earphone 30 may be quickly mounted and disassembled.

[0070] Specifically, optionally, the materials of the first magnetic member 24 and the second magnetic member are both configured as magnets, so that the installation stability of the earphone 30 can be improved. It is worth mentioning that the second magnetic member can be a magnet of a speaker in the sound-emitting part 31, or a separately arranged magnet. Of course, in other embodiments, the material of one of the first magnetic member 24 and the second magnetic member is configured as a magnet, and the material of the other is configured as a magnetic metal such as iron.

[0071] Please refer to Figures 4 to 7 In one embodiment, optionally, the temple 102 is further provided with a mounting cavity 25 spaced apart from the receiving groove 22, and the first magnetic member 24 is provided in the mounting cavity 25 and corresponds to the bottom wall of the receiving groove 22. In this way, the problem of the first magnetic member 24 being exposed to the outside and causing wear and dirt can be avoided, and the waterproof and dustproof performance of the receiving groove 22 can be improved, and the temple 102 is more beautiful. Of course, in other embodiments, the first magnetic member 24 can also be exposed on the bottom surface or side surface of the receiving groove.

[0072] In one embodiment, optionally, the first magnetic member 24 extends along the length direction of the receiving slot 22 and corresponds to an end of the receiving slot 22 away from the mounting post 23. In this way, the mutual magnetic attraction between the first magnetic member 24 and the second magnetic member can be improved, and the first magnetic member 24 cooperates with the mounting post 23 to improve the installation stability of the earphone 30.

[0073] Please refer to Figures 8 to 11 In another embodiment, the bottom wall of the receiving groove 22 is provided with a clearance hole 261, the temple 102 is further provided with a mounting cavity 25 connected to the clearance hole 261, the first conductive terminal 21 is provided in the mounting cavity 25, and the second conductive terminal 33 is provided at one end of the mounting portion 32 extending into the mounting cavity 25. In this way, the first conductive terminal 21 is provided in the clearance hole 261, which can better protect the first conductive terminal 21.

[0074] In the embodiment where the receiving groove 22 is provided on the end surface of the temple 102 away from the display body 101, the cross-sectional shape of the receiving groove 22 perpendicular to its length direction, that is, the cross-sectional shape perpendicular to the installation direction of the earphone 30, can be a regular shape such as an oval, an elliptical, a convex polygon or a concave polygon, or can be other irregular shapes, and the present application does not make specific restrictions on this. It should be noted that when the cross-sectional shape of the receiving groove 22 is a non-circular shape, the outer peripheral surface shape of the mounting portion 32 of the earphone 30 is adapted thereto, which can prevent the earphone 30 from rotating around the axis of the mounting portion 32 in the receiving groove 22, thereby improving the installation stability of the earphone 30; when the cross-sectional shape of the receiving groove 22 is a circle, the outer peripheral surface of the mounting portion 32 is provided with a limiting groove extending along its installation direction, and the side wall of the receiving groove 22 is correspondingly provided with a limiting rib to prevent the earphone 30 from rotating around the axis of the mounting portion 32 in the receiving groove 22.

[0075] Please refer to Figures 8 to 11 In another embodiment, the mounting portion 32 is further provided with a second card slot 36 at one end extending into the mounting cavity 25, and the mounting structure 20 further includes a locking mechanism, which includes a hook 271 movably provided in the mounting cavity 25, and the hook 271 is provided with a second card protrusion, and the second card protrusion can be locked in the second card slot 36. In this way, after the earphone 30 is installed in place, the second card protrusion is locked into the second card slot 36 to play a locking role, thereby preventing the earphone 30 from accidentally falling out of the receiving groove 22 in the opposite direction of the installation direction, thereby improving the installation stability of the earphone 30. Of course, in other embodiments, an elastic card protrusion can also be provided on the side of the receiving groove 22, and a card slot can be correspondingly provided on the outer peripheral surface of the mounting portion 32.

[0076] Please refer to Fig.10 and Fig.11In another embodiment, the hook 271 is rotatably disposed in the mounting cavity 25, the locking mechanism further includes an unlocking key 272 connected to one end of the hook 271, and an elastic reset member 273 connecting the hook 271 and the inner wall of the mounting cavity 25, the second clamping protrusion is disposed at the other end of the hook 271, the temple 102 is further provided with an unlocking hole 262 communicating with the mounting cavity 25, the unlocking key 272 slides and is exposed in the unlocking hole 262, and the elastic reset member 273 is used to make the second clamping protrusion have a tendency to move toward the second slot 36. In this way, the unlocking key 272 and the elastic reset key can facilitate the unlocking operation and ensure the reliability of the locking effect. Of course, in other embodiments, the temple 102 may also be provided with a locking hole connected to the mounting cavity 25, the hook 271 may be slidably provided in the locking hole, and one end of the hook 271 may be exposed outside the locking hole, and the other end of the hook 271 may extend into the mounting cavity 25 and be locked with the second locking groove 36, and the locking mechanism may further include an elastic reset member 273, one end of the elastic reset member 273 may abut against the inner edge of the locking hole, and the other end of the elastic reset member 273 may abut against the end face of the second locking protrusion away from the second locking groove 36. In still other embodiments, the unlocking key 272 and the elastic reset member 273 may not be provided, and the hook 271 may be configured as an elastic metal sheet, so that the end portion where the second locking protrusion is located can swing relative to the mounting cavity 25, so that the second locking protrusion can be removed from or inserted into the second locking groove 36.

[0077] Specifically, the elastic return member 273 is configured as a torsion spring. Of course, in other embodiments, the elastic return member 273 can also be configured as a tension spring, a compression spring or an elastic rubber body.

[0078] Please refer to Fig.10 and Fig.11 In another embodiment, the second slot 36 extends along the circumference of the mounting portion 32, the second conductive terminal 33 includes a conductive plate 331 disposed on the end surface of the mounting portion 32, and a conductive ring 332 disposed on the second slot 36, and the first conductive terminal 21 includes a spring pin 211 and a spring hook 212, the needle head of the spring pin 211 faces the middle of the clearance hole 261, the spring hook 212 is disposed on the side of the clearance hole 261, and can be elastically inserted into the second slot 36 to abut against the conductive ring 332. In this way, the mounting portion 32 and the receiving slot 22 cooperate to play a guiding role, and after the earphone 30 is assembled in place, the conductive plate 331 is directly pressed on the needle head of the spring pin 211, and the spring hook 212 is inserted into the second slot 36 and abuts against the conductive ring 332 after elastic deformation, so that electrical connection is automatically achieved during the installation process of the earphone 30. Of course, in other embodiments, the first conductive terminal 21 may include two spring pins 211 , and the second conductive terminal 33 may include two conductive plates 331 spaced apart from each other on the end surface of the mounting portion 32 .

[0079] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A head mounted display device, characterized in that: include: Display the subject; Temples, connected to the display body and provided with a mounting structure; as well as An earphone having a sound outlet hole, the earphone being detachably connected to the mounting structure and having an external speaker position and a wearing position. In the external speaker position, the earphone is mounted on the mounting structure and the sound outlet hole faces the ear of the user. In the wearing position, the earphone is detached from the mounting structure and can be worn on the ear.

2. The head mounted display device according to claim 1, wherein: The display body is provided with a first wireless communication module, and the earphone is provided with a second wireless communication module corresponding to the first wireless communication module.

3. The head mounted display device according to claim 2, wherein: The mounting structure includes a first conductive terminal, and the earphone is provided with a second conductive terminal corresponding to the first conductive terminal. In the external placement position, the first conductive terminal is electrically connected to the second conductive terminal.

4. The head mounted display device according to claim 3, wherein: The mounting structure is arranged at one end of the temple away from the display body.

5. The head mounted display device according to claim 3, wherein: The earphone includes a sound-emitting part and a mounting part, the sound outlet is arranged in the sound-emitting part, the mounting structure also includes a receiving groove, and in the external speaker position, the mounting part is at least partially embedded in the receiving groove.

6. The head mounted display device according to claim 5, wherein: A mounting post is protruding from the bottom surface of the receiving groove, and the mounting post extends along the mounting direction of the earphone. The first conductive terminal is arranged on the side of the mounting post, and the mounting portion is provided with a mounting hole corresponding to the mounting post. The second conductive terminal is arranged on the hole wall surface of the mounting hole.

7. The head mounted display device according to claim 6, wherein: A first clamping groove is also provided on the side surface of the mounting column, and a first clamping protrusion is provided on the hole wall surface of the mounting hole corresponding to the first clamping groove, and the first clamping protrusion can be clamped in the first clamping groove.

8. The head mounted display device according to claim 7, wherein: At least one of the first conductive terminal and the second conductive terminal is configured as a ring structure arranged around the axis of the mounting post; and / or, at least one of the first conductive terminal and the second conductive terminal is configured as an elastic structure; And / or, the first latching protrusion and the first latching groove are configured as an annular structure arranged around the axis of the mounting column, and the first latching protrusion is configured as an elastic structure.

9. The head mounted display device according to claim 6, wherein: The mounting structure further includes a first magnetic component, and the earphone is provided with a second magnetic component corresponding to the first magnetic component, and the first magnetic component can magnetically attract the second magnetic component.

10. The head mounted display device according to claim 9, wherein: The temple is further provided with a mounting cavity spaced apart from the receiving groove, and the first magnetic member is provided in the mounting cavity and corresponds to the bottom wall of the receiving groove; And / or, the first magnetic member extends along the length direction of the receiving slot and corresponds to an end of the receiving slot away from the mounting column.

11. The head mounted display device according to claim 5, wherein: The bottom wall of the receiving groove is provided with a clearance hole, and the temple is also provided with an installation cavity connected to the clearance hole. The first conductive terminal is provided in the installation cavity, and the second conductive terminal is provided at one end of the installation portion extending into the installation cavity.

12. The head mounted display device according to claim 11, wherein: The mounting portion is further provided with a second slot at one end extending into the mounting cavity. The mounting structure further includes a locking mechanism, which includes a hook movably arranged in the mounting cavity. The hook is provided with a second locking protrusion, and the second locking protrusion can be locked in the second slot.

13. The head mounted display device according to claim 12, wherein: The hook is rotatably arranged in the installation cavity, and the locking mechanism also includes an unlocking key connected to one end of the hook, and an elastic reset member connecting the hook and the inner wall of the installation cavity, the second latching protrusion is arranged at the other end of the hook, and the temple is also provided with an unlocking hole connected to the installation cavity, the unlocking key slides and appears in the unlocking hole, and the elastic reset member is used to make the second latching protrusion have a tendency to move toward the second slot.

14. The head mounted display device according to claim 12, wherein: The second card slot extends along the circumference of the mounting portion, the second conductive terminal includes a conductive plate arranged on the end surface of the mounting portion, and a conductive ring arranged on the second card slot, the first conductive terminal includes a spring pin and a spring hook, the needle head of the spring pin faces the middle of the clearance hole, the spring hook is arranged on the side of the clearance hole, and can be elastically inserted into the second card slot to abut against the conductive ring.

15. The head mounted display device according to any one of claims 1 to 14, characterized in that: The two temples and the two earphones are provided, the two temples are provided at two opposite ends of the display body, and the two earphones are provided at the two temples; And / or, at the external speaker position, the distance between the sound outlet and the ear canal entrance of the ear is in the range of 20 mm to 60 mm; And / or, a reference conical surface is rotated about the center line of the sound outlet, the cone angle of the reference conical surface is greater than 0° and less than or equal to 120°, and is gradually expanded in the direction away from the earphone; in the external speaker position, the reference conical surface covers the entrance of the ear canal of the ear.

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