Sound guiding module and head-mounted display device

Abstract

The application discloses a sound guide module and a head-mounted display device applying the same. The head-mounted display device comprises a host, the host is provided with a loudspeaker and a sound outlet hole corresponding to the loudspeaker, the sound guide module comprises an adjusting assembly and an ear cover, the adjusting assembly is movably connected to the host and covers the sound outlet hole, the adjusting assembly is provided with a first sound guide channel communicating with the sound outlet hole, and the ear cover is movably connected to the host through the adjusting assembly and communicates with the first sound guide channel. The technical scheme of the application aims to avoid sound externalization of the head-mounted display device, improve the immersion and privacy of the user, and avoid interference on surrounding people.

Description

Technical Field

[0001] This invention relates to the field of wearable devices, and particularly to a sound guiding module and a head-mounted display device. Background Technology

[0002] Head-mounted display devices include virtual reality headsets, augmented reality headsets, and mixed reality headsets. With technological advancements, the market for head-mounted display devices is expanding, and people's demands for these devices are increasing. Currently, head-mounted display devices often play sound externally. On the one hand, this reduces user immersion and compromises privacy; on the other hand, the externally played sound can also disturb those around the user. Summary of the Invention

[0003] The main objective of this invention is to provide a sound guiding module that aims to prevent the sound from being played out of the head-mounted display device, thereby enhancing the user's immersion and privacy, and avoiding interference with those around them.

[0004] To achieve the above objectives, the present invention proposes a sound guiding module applied to a head-mounted display device. The head-mounted display device includes a main unit, which is equipped with a speaker and corresponding sound outlets. The sound guiding module includes:

[0005] An adjustment component, movably connected to the main unit and covering the sound outlet, is provided with a first sound guide channel communicating with the sound outlet; and

[0006] The earcups are movably connected to the host unit via the adjustment assembly and are connected to the first sound channel.

[0007] Optionally, the sound guiding module further includes a fixing member, which is fixedly connected to the host, and the adjustment component is movably connected to the fixing member. The fixing member is provided with a second sound guiding channel, and the first sound guiding channel is connected to the sound outlet through the second sound guiding channel.

[0008] Optionally, the fastener is provided with a bayonet and is clamped to the outside of the sound outlet hole by means of the bayonet.

[0009] Optionally, the first sound-conducting channel and the second sound-conducting channel are formed by sound-insulating material, or the surfaces of the first sound-conducting channel and the second sound-conducting channel are coated with sound-insulating paint.

[0010] Optionally, the adjustment assembly includes an angle adjustment member and / or a distance adjustment member, the angle adjustment member being used to adjust the angle of the earmuff relative to the fixing member, and the distance adjustment member being used to adjust the distance of the earmuff relative to the fixing member.

[0011] Optionally, the angle adjustment component includes a first rotating component and a second rotating component rotatably connected to the fixed component. The first rotating component is used to drive the earmuff to rotate clockwise relative to the fixed component, and the second rotating component can drive the earmuff to rotate counterclockwise relative to the fixed component.

[0012] Optionally, the outer side of the fixing member is provided with a mounting protrusion, and the mounting protrusion is provided with a mounting hole. One of the first rotating member and the second rotating member is rotatably sleeved on the mounting protrusion, and the other is rotatably inserted into the mounting hole.

[0013] Optionally, the two ends of the distance adjustment member are respectively fixedly connected to the earmuff and the second rotating member. The length of the distance adjustment member is adjustable. The adjustment assembly further includes a clockwise limiting member and a counterclockwise limiting member. The clockwise limiting member is disposed between the first rotating member and the second rotating member to limit the second rotating member from rotating clockwise relative to the first rotating member. The counterclockwise limiting member is disposed between the fixed member and the first rotating member to limit the first rotating member from rotating counterclockwise relative to the fixed member.

[0014] Optionally, the first rotating member is provided with a clearance hole, the mounting protrusion is accommodated in the clearance hole, the second rotating member is provided with a main body and a plugging protrusion protruding from the main body, the plugging protrusion is inserted into the mounting hole, and the main body is located on the side of the first rotating member away from the host.

[0015] Optionally, the clockwise limiting member is provided with a first mating arc surface, which extends in a counterclockwise direction toward the direction of the second rotating member to contact and engage with the outer periphery of the insertion protrusion. At the position where the second rotating member contacts the first mating arc surface, on a cross section perpendicular to the axial direction of the insertion protrusion, the tangent of the first mating arc surface and the tangent of the outer contour of the mounting protrusion are set at an angle.

[0016] Optionally, the counterclockwise limiting member is disposed on the mounting protrusion. The counterclockwise limiting member is provided with a second mating arc surface. The second mating arc surface extends in a clockwise direction toward the first rotating member to contact and engage with the inner periphery of the first rotating member. At the position where the first rotating member contacts the second mating arc surface, the tangent of the second mating arc surface is set at an angle with the tangent of the inner contour of the first rotating member.

[0017] Optionally, the sound guiding channel includes a second sound guiding channel disposed on the fixed member, a first sub-sound guiding channel disposed on the second rotating member, and a second sub-sound guiding channel disposed on the distance adjusting member;

[0018] The two ends of the second sound guide channel are connected to the sound outlet and the mounting hole. One end of the first sub-sound guide channel passes through the plug-in protrusion and is connected to the mounting hole. One end of the second sub-sound guide channel is connected to the other end of the first sub-sound guide channel, and the other end is connected to the ear cup.

[0019] Optionally, the distance adjustment component includes a first adjustment part and a second adjustment part, with one end of the first adjustment part and the second adjustment part fixedly connected to the earmuff and the second rotating component, respectively, and the other end movably connected, so that the distance between the earmuff and the second rotating component is adjustable.

[0020] Optionally, one end of the first adjusting part and the second adjusting part is provided with an internal tooth groove, and the other end is provided with an external tooth protrusion. The external tooth protrusion is inserted into and engages with the internal tooth groove so that the first adjusting part and the second adjusting part can be movably connected.

[0021] The present invention also proposes a head-mounted display device, including the aforementioned sound guiding module and a host for mounting the sound guiding module.

[0022] In this invention, the sound outlet of the main unit is connected to the earcups via the first sound guiding channel of the adjustment component. This allows the sound from the head-mounted display device to be conducted to the earcups. When the user wears the head-mounted display device, the earcups cover their ears, and the sound from the head-mounted display device is transmitted to their ears through the earcups. This avoids external sound playback and thus prevents interference with those around the user, while also enhancing the user's immersion and privacy. Furthermore, the sound that would normally be emitted from the main unit's sound outlet is focused onto the earcups via the first sound guiding channel, increasing the volume heard by the user. Additionally, the earcups are movably connected to the main unit via the adjustment component. This allows the user to adjust the position of the earcups relative to their ears to ensure they cover the ears and that the sound is transmitted to the user's ears. Different users can use the same sound guiding module when using the head-mounted display device. By adjusting the earcups to the appropriate position using the adjustment component, they can hear the sound from the head-mounted display device through the earcups, thereby improving the versatility of the sound guiding module of this invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the head-mounted display device of the present invention;

[0025] Figure 2 This is an exploded structural diagram of an embodiment of the sound guiding module of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a fixing component of the sound guiding module of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of an embodiment of the second rotating component of the sound guiding module of the present invention;

[0028] Figure 5 This is a partial structural diagram of an embodiment of the sound guiding module of the present invention;

[0029] Figure 6 This is a partial structural schematic diagram of an embodiment of the sound guiding module of the present invention;

[0030] Figure 7 This is a partial structural schematic diagram of an embodiment of the distance adjustment component of the sound guiding module of the present invention.

[0031] Explanation of icon numbers:

[0032] label name label name 10 Sound guide module 321 Main body 20 host 322 Insertion protrusion 21 Main unit 322a First connector segment 22 Side arm 322b Second connector section 100 Earmuffs 323 First Sub-channel 200 Fasteners 323a First leading tone 201 checkpoint 323b Second Leading Section 202 Second sound guide channel 400 Distance adjustment 202a Sound guide blind slot 401 Second sub-channel 202b Sound guide hole 410 First Regulation Department 210 Mounting protrusion 411 external tooth convexity 211 Second mounting slot 420 Second Adjustment Department 220 Mounting holes 421 Internal tooth groove 300 Angle Adjustment Part 500 Clockwise limit component 310 First rotating component 510 First mating arc surface 311 Give way hole 600 Counterclockwise limiting component 312 First mounting slot 610 Second mating curved surface 320 Second rotating component

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0037] This invention proposes a sound guiding module.

[0038] In one embodiment of the present invention, such as Figure 1 As shown, the sound guiding module 10 is applied to a head-mounted display device. The head-mounted display device includes a host 20, which has a sound outlet. The sound guiding module 10 includes an adjustment component and an earcup 100. The adjustment component is movably connected to the host 20 and covers the sound outlet. The adjustment component has a first sound guiding channel communicating with the sound outlet. The earcup 100 is movably connected to the host 20 through the adjustment component and communicates with the first sound guiding channel.

[0039] In the prior art, the sound emitted by the speaker of the head-mounted display device is played out through the sound outlet of the host 20. On the one hand, this not only reduces the user's sense of immersion but also worsens their sense of privacy. On the other hand, when the user is using the head-mounted display device, the sound played out can also disturb people around them.

[0040] In this invention, the sound outlet of the main unit 20 is connected to the earcups 100 via the first sound guide channel of the adjustment component, so that the sound from the speaker can be conducted to the earcups 100. After the user wears the head-mounted display device, the earcups 100 cover the ears, and the sound from the head-mounted display device can be transmitted to the ears through the earcups 100, thereby avoiding external sound playback and interference with surrounding people, and enhancing the user's immersion and privacy. Furthermore, the sound that would normally be emitted from the sound outlet of the main unit 20 is converged to the earcups 100 via the first sound guide channel of the adjustment component, increasing the volume heard by the user. In addition, the earcups 100 are movably connected to the main unit 20 via the adjustment component, so that the user can adjust the position of the earcups 100 relative to the ears so that the earcups 100 cover the ears, thereby ensuring that the sound from the earcups 100 is transmitted to the user's ears. Different users can use the same sound guiding module 10 when using the head-mounted display device. By adjusting the earcups 100 to a suitable position using the adjustment components, they can hear the sound of the head-mounted display device through the earcups 100, thereby improving the versatility of the sound guiding module 10 of the present invention.

[0041] Furthermore, in this embodiment, as Figures 1 to 3 As shown, the sound guiding module 10 also includes a fixing member 200, which is fixedly connected to the host 20. The adjustment component is movably connected to the fixing member 200. The fixing member 200 is provided with a second sound guiding channel 202, and the first sound guiding channel is connected to the sound outlet through the second sound guiding channel 202. That is, the adjustment component is indirectly connected to the host 20 through the fixing member 200, and the first sound guiding channel is indirectly connected to the sound outlet through the second sound guiding channel 202. In this way, it is not necessary to add a separate structure on the host 20 for the movable connection of the adjustment component. It can be understood that the fixing member 200 should have a part for the movable connection of the adjustment component and a part for the fixed connection to the host 20. For host 20s with different structures, the structure of the fixing member 200 for the fixed connection to the host 20 can be adapted to make the sound guiding module 10 of the present invention adaptable to host 20s with different structures. Of course, in other embodiments, the adjustment component can also be directly connected to the host 20.

[0042] Furthermore, the first and second sound guiding channels 202 are constructed of sound-insulating material, or the surfaces of the first and second sound guiding channels 202 are coated with sound-insulating paint. Specifically, the walls of the first and second sound guiding channels 202 are made of sound-insulating material, or the inner or outer surfaces of the first and second sound guiding channels 202 are coated with sound-insulating paint, all of which can reduce sound dispersion, thus ensuring the sound quality heard by the user through the earcups 100 and improving the user's audiovisual experience.

[0043] Furthermore, the fastener 200 is detachably connected to the main unit 20, allowing the same sound guide module 10 to be installed on different main units 20, thereby further improving the versatility of the sound guide module 10. The fastener 200 can be fixedly connected to the main unit 20 by snap-fit, plug-in, or screw fastening. Specifically, as shown... Figure 2 and Figure 3 As shown, in this embodiment, the fixing member 200 is provided with a bayonet 201, and is clamped to the outside of the sound outlet through the bayonet 201. In this way, the sound guiding module 10 can be easily and quickly installed on or removed from the host 20. Moreover, this detachable connection method does not require changing the structure of the host 20, nor does it damage the structure of the host 20 itself. Optionally, the host 20 includes a host body 21 and side arms 22 provided on opposite sides of the host body 21. When wearing the head-mounted display device, the side arms 22 are clamped on both sides of the head to fix the host body 21. Without loss of generality, the sound outlet is opened at the end of the side arm 22 away from the host body 21. That is, the fixing member 200 clamps the end of the side arm 22 away from the host body 21. In this way, the position of the earcup 100 is close to the ear, and the user can make a small adjustment to make the earcup 100 cover the ear. Of course, in other embodiments, the sound hole can also be located on the main body 21. By extending the fixing member 200 to the direction of the ear with sufficient length, the adjustment range required for the adjustment component can also be reduced.

[0044] In one embodiment, such as Figure 2 As shown, the adjustment assembly includes an angle adjustment component 300 and a distance adjustment component 400. The angle adjustment component 300 is used to adjust the angle of the earcup 100 relative to the fixing component 200, and the distance adjustment component 400 is used to adjust the distance of the earcup 100 relative to the fixing component 200. With the user wearing the head-mounted display device as a directional reference, adjusting the angle of the earcup 100 relative to the fixing component 200 via the angle adjustment component 300 allows the earcup 100 to move back and forth relative to the ear. Adjusting the distance of the earcup 100 relative to the fixing component 200 via the distance adjustment component 400 allows the earcup 100 to move up and down relative to the ear, thus facilitating the user to adjust the earcup 100 to a position that covers the ear. Of course, in other embodiments, only one adjustment component may be provided to simultaneously satisfy the adjustment of both angle and distance.

[0045] Furthermore, in this embodiment, as Figure 2As shown, the angle adjustment component 300 includes a first rotating component 310 and a second rotating component 320 rotatably connected to the fixed component 200. The first rotating component 310 drives the earmuff 100 to rotate clockwise relative to the fixed component 200, and the second rotating component 320 drives the earmuff 100 to rotate counterclockwise relative to the fixed component 200. Thus, the earmuff 100 can be adjusted clockwise or counterclockwise according to its current position relative to the ear, avoiding excessive adjustment and improving user convenience. Of course, in other embodiments, the same angle adjustment component 300 can perform both clockwise and counterclockwise adjustments, or a single first rotating component 310 or second rotating component 320 can be used to adjust the position of the earmuff 100 relative to the ear.

[0046] Furthermore, in this embodiment, as Figure 2 As shown, the outer side of the fixing member 200 has a mounting protrusion 210, and the mounting protrusion 210 has a mounting hole 220. One of the first rotating member 310 and the second rotating member 320 is rotatably sleeved on the mounting protrusion 210, and the other is rotatably inserted into the mounting hole 220. In this way, the first rotating member 310 and the second rotating member 320 can be movably connected to the fixing member 200. Driving the first rotating member 310 and the second rotating member 320 to rotate relative to the fixing member 200 can drive the earcup 100 to rotate relative to the fixing member 200. In addition, it can effectively utilize the space on the outer side of the fixing member 200, avoid the sound guiding module 10 being too large, and avoid placing too much weight burden on the user, which is conducive to ensuring the user's experience when using the sound guiding module 10 of the present invention.

[0047] Specifically, such as Figure 2 As shown, the first rotating member 310 is provided with a clearance hole 311, and the mounting protrusion 210 is accommodated in the clearance hole 311. The second rotating member 320 is provided with a main body 321 and an insertion protrusion 322 protruding from the main body 321. The insertion protrusion 322 is inserted into the mounting hole 220, and the main body 321 is located on the side of the first rotating member 310 opposite to the host 20. Wherein, as... Figure 4As shown, the insertion protrusion 322 includes a first insertion section 322a that inserts into the mounting hole 220 and a second insertion section 322b that inserts into the clearance hole 311. Specifically, to reduce the resistance of the first insertion section 322a when inserting into the mounting hole 220, the outer diameter of the first insertion section 322a is smaller than the inner diameter of the mounting hole 220. Furthermore, multiple protrusions on its outer periphery tightly fit with the mounting hole 220. Thus, the outer periphery of the first rotating member 310 and the main body 321 of the second rotating member 320 are both exposed on the outside, facilitating user operation and ensuring a better user experience. Alternatively, in other embodiments, the second rotating member 320 may have a driving protrusion protruding from the end of the insertion protrusion 322 away from the fixing member 200, moving away from the fixing member 200, which also facilitates user operation.

[0048] Furthermore, in this embodiment, as Figure 1 As shown, the two ends of the distance adjustment member 400 are respectively fixedly connected to the earcup 100 and the second rotating member 320. The length of the distance adjustment member 400 is adjustable. Figure 5 and Figure 6As shown, the adjustment assembly further includes a clockwise limiting member 500 and a counterclockwise limiting member 600. The clockwise limiting member 500 is disposed between the first rotating member 310 and the second rotating member 320 to limit the second rotating member 320 from rotating clockwise relative to the first rotating member 310. The counterclockwise limiting member 600 is disposed between the fixing member 200 and the first rotating member 310 to limit the first rotating member 310 from rotating counterclockwise relative to the fixing member 200. In this embodiment, when the user needs to drive the earcup 100 to rotate counterclockwise, the second rotating member 320 can be driven to rotate counterclockwise. The second rotating member 320 can then drive the earcup 100 to rotate counterclockwise through the distance adjustment member 400. When the earcup 100 is adjusted to the correct position, the user removes the force applied to the second rotating member 320. Under the restriction of the clockwise limiting member 500, the second rotating member 320 will not reset, and the earcup 100 can be stably positioned after adjustment. When the user needs to drive the earcup 100 to rotate clockwise, the first rotating member 310 and the second rotating member 320 can be driven to rotate clockwise simultaneously. This can then drive the earcup 100 to rotate clockwise through the distance adjustment member 400. When the earcup 100 is adjusted to the correct position, the external force on the first rotating member 310 and the second rotating member 320 is removed. Under the restriction of the counterclockwise limiting member 600 on the first rotating member 310, the earcup 100 will also not reset. In this way, the angle of the earcup 100 can be adjusted more precisely, thereby improving the user's operating experience when adjusting the earcup 100. Of course, in other embodiments, the end of the distance adjustment member 400 away from the earcup 100 can move between the first rotating member 310 and the second rotating member 320. When it is necessary to drive the earcup 100 to rotate clockwise, this end of the distance adjustment member 400 is driven to disengage from the second rotating member 320 and be fixed to the first rotating member 310. When it is necessary to drive the earcup 100 to rotate counterclockwise, the same operation can be performed.

[0049] Furthermore, in this embodiment, as Figure 6 As shown, the clockwise limiting member 500 is provided with a first mating arc surface 510. The first mating arc surface 510 extends counterclockwise towards the second rotating member 320 to contact and engage with the outer periphery of the insertion protrusion 322. At the position where the second rotating member 320 contacts the first mating arc surface 510, on a cross section perpendicular to the axial direction of the insertion protrusion 322, the tangent of the first mating arc surface 510 forms an angle with the tangent of the outer contour of the mounting protrusion 210. Figure 5As shown, the counterclockwise limiting member 600 is disposed on the mounting protrusion 210. The counterclockwise limiting member 600 has a second mating arc surface 610, which extends clockwise toward the first rotating member 310 to contact and engage with the inner periphery of the first rotating member 310. At the position where the first rotating member 310 contacts the second mating arc surface 610, the tangent of the second mating arc surface 610 forms an angle with the tangent of the inner contour of the first rotating member 310. Of course, in other embodiments, the clockwise limiting member 500 and the counterclockwise limiting member 600 can perform their limiting function in other ways, such as by toothed engagement; or, the clockwise limiting member 500 can engage with other parts of the second rotating member 320, and the counterclockwise limiting member 600 can also engage with other parts of the first rotating member 310.

[0050] Specifically, the first rotating member 310 has a first mounting groove 312 on each of the opposite sides of the insertion protrusion 322. A clockwise limiting member 500 is installed in each of the first mounting grooves 312. The clockwise limiting member 500 contacts and engages with the outer periphery of the insertion protrusion 322 of the second rotating member 320 through a first mating arc surface 510. A second mounting groove 211 is opened on each of the opposite sides of the mounting protrusion 210. A counterclockwise limiting member 600 is installed in each of the second mounting grooves 211. The counterclockwise limiting member 600 is engaged with the outer periphery of the insertion protrusion 322 of the second rotating member 320 through a first mating arc surface 510. The mating arc surface 610 contacts and engages with the inner periphery of the first rotating member 310. Thus, without external force, under the constraint of the second mating arc surface 610, the first rotating member 310 can remain relatively fixed to the fixed member 200. Under the constraint of the first mating arc surface 510, the second rotating member 320 can remain relatively fixed to the fixed member 200, thereby allowing the earmuff 100 to remain relatively fixed to the main unit 20. Since the relative position of the main unit 20 and the user's head is fixed, the earmuff 100 can also be relatively fixed to the user's ears. Without loss of generality, the clockwise limiting member 500 and the counterclockwise limiting member 600 are respectively fixedly installed in the first mounting groove 312 and the second mounting groove 211 by bolts.

[0051] Furthermore, when the second rotating member 320 rotates counterclockwise relative to the first rotating member 310, it is not restricted by the first mating arc surface 510, and can cause the second rotating member 320 to drive the earmuff 100 to rotate counterclockwise. When the earmuff 100 is adjusted to the correct position, once the external force on the second rotating member 320 is removed, the earmuff 100 can remain relatively fixed to the user's ear under the restriction of the first mating arc surface 510 and the second mating arc surface 610. In particular, the first mating arc surface 510 has a significant limiting effect on the clockwise rotation of the second rotating member 320 relative to the first rotating member 310, which can prevent the earmuff 100 from rotating counterclockwise and returning to its original position before adjustment. When the first rotating member 310 and the second rotating member 320 rotate clockwise... When the first rotating member 310 rotates clockwise relative to the fixed member 200, the second rotating member 320 is not restricted by the second mating arc surface 610, nor by the first mating arc surface 510. This allows the earcup 100 to rotate clockwise. When the earcup 100 is adjusted to the correct position, and the external force on the first rotating member 310 and the second rotating member 320 is removed, the earcup 100 can remain relatively fixed to the user's ear under the restriction of the first mating arc surface 510 and the second mating arc surface 610. In particular, the second mating arc surface 610 has a significant limiting effect on the counterclockwise rotation of the first rotating member 310 relative to the fixed member 200, which can prevent the earcup 100 from rotating counterclockwise and returning to its original position before adjustment.

[0052] Furthermore, in this embodiment, as Figure 7 As shown, the distance adjustment component 400 includes a first adjustment part 410 and a second adjustment part 420. One end of the first adjustment part 410 and the second adjustment part 420 are fixedly connected to the earcup 100 and the second rotating component 320, respectively, while the other end is movably connected, so that the distance between the earcup 100 and the second rotating component 320 is adjustable. Thus, by moving the connected ends of the first adjustment part 410 and the second adjustment part 420 relative to each other, the distance between the earcup 100 and the second rotating component 320 can be adjusted, thereby achieving distance adjustment between the earcup 100 and the user's ear. Specifically, if the connected ends move towards each other, the earcup 100 will move upward relative to the main unit 20; if the connected ends move away from each other, the earcup 100 will move downward relative to the main unit 20. By coordinating the adjustment of the first rotating component 310 and the second rotating component 320, the earphone can be adjusted to a suitable position to ensure the user's audiovisual experience. Of course, in other embodiments, the distance adjustment member 400 may be an integral and retractable unit, which can also adjust the distance between the earmuff 100 and the user's ear.

[0053] In one embodiment, one end of the first adjusting part 410 and the second adjusting part 420 is provided with an inner toothed groove 421, and the other end is provided with an outer toothed protrusion 411. The outer toothed protrusion 411 is inserted into and engages with the inner toothed groove 421, so that the first adjusting part 410 and the second adjusting part 420 are movably connected. Specifically, in this embodiment, the first adjusting part 410 is provided with an outer toothed protrusion 411, and the second adjusting part 420 is provided with an inner toothed groove 421. The first adjusting part 410 is inserted into the second adjusting part 420. It can be understood that as the engagement length of the outer toothed protrusion 411 and the inner toothed groove 421 is different, the effective length of the distance adjusting member 400 will change accordingly, thereby enabling the adjustment of the distance between the earmuff 100 and the user's ear. Of course, in other embodiments, one of the first adjustment part 410 and the second adjustment part 420 may be provided with an internal thread and the other with an external thread. Through the threaded engagement, the effective length of the distance adjustment member 400 can be adjusted to adjust the distance between the earmuff 100 and the user's ear.

[0054] Furthermore, in this embodiment, as Figure 3 , Figure 4 and Figure 7As shown, the first sound guiding channel includes a first sub-sound guiding channel 323 disposed on the second rotating member 320 and a second sub-sound guiding channel 401 disposed on the distance adjusting member 400; both ends of the second sound guiding channel 202 are connected to the sound outlet and the mounting hole 220, one end of the first sub-sound guiding channel 323 passes through the insertion protrusion 322 to connect to the mounting hole 220, one end of the second sub-sound guiding channel 401 is connected to the other end of the first sub-sound guiding channel 323, and the other end is connected to the earcup 100. It can be understood that the second sound guiding channel 202 is not connected to the external environment to ensure that the sound from the sound outlet can be transmitted to the mounting hole 220. The first sub-sound guiding channel 323 is formed on the second rotating member 320, one end is connected to the second sound guiding channel 202, and the other end is connected to the second sub-sound guiding channel 401 disposed within the distance adjusting member 400 to connect to the earcup 100. Thus, the sound emitted from the speaker's sound outlet is transmitted sequentially to the earcup 100 via the second sound guide channel 202, the first sub-sound guide channel 323, and the second sub-sound guide channel 401, ultimately reaching the user's ears. Without loss of generality, the second sound guide channel 202 includes a connected sound guide blind groove 202a and a sound guide hole 202b, connecting to the sound outlet via the sound guide blind groove 202a and to the mounting hole 220 via the sound guide hole 202b. The first sub-sound guide channel 323 includes a first sound guide segment 323a disposed through the insertion protrusion 322 and a second sound guide segment 323b disposed on the main body 321. Both the first adjustment part 410 and the second adjustment part 420 are hollow structures, thereby forming the second sub-sound guide channel 401 within the distance adjustment member 400. The second adjustment part 420 is inserted into the second sound guide segment 323b, so that the second sub-sound guide channel 401 connects to the first sub-sound guide channel 323.

[0055] The present invention also proposes a head-mounted display device, which includes a sound guiding module 10 and a host 20 for mounting the sound guiding module 10. The specific structure of the sound guiding module 10 is as described in the above embodiments. Since the head-mounted display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0056] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sound guide module applied to a head-mounted display device, characterized in that, The head-mounted display device comprises a main body, a speaker and a sound hole corresponding to the speaker, a sound guide module, an adjusting assembly and an ear cover. The adjusting assembly is movably connected to the main body and covers the sound hole, and is provided with a first sound guide channel connected to the sound hole. The ear cover is movably connected to the main body through the adjusting assembly and is connected to the first sound guide channel. The sound guide module further comprises a fixing member movably connected to the main body, and the adjusting assembly is movably connected to the fixing member. The adjusting assembly comprises an angle adjusting member and / or a distance adjusting member. The angle adjusting member is used to adjust the angle of the ear cover relative to the fixing member. The distance adjusting member is used to adjust the distance of the ear cover relative to the fixing member. The angle adjusting member comprises a first rotating member and a second rotating member rotatably connected to the fixing member. One of the first rotating member and the second rotating member is rotatably sleeved on the outside of the mounting protrusion, and the other is rotatably inserted into the mounting hole. The distance adjusting member is fixedly connected to the ear cover and the second rotating member at both ends, and the length of the distance adjusting member is adjustable. The adjusting assembly further comprises a clockwise limiting member and a counterclockwise limiting member. The clockwise limiting member is arranged between the first rotating member and the second rotating member and is used to limit the clockwise rotation of the second rotating member relative to the first rotating member. The counterclockwise limiting member is arranged between the fixing member and the first rotating member and is used to limit the counterclockwise rotation of the first rotating member relative to the fixing member. The first rotating member is provided with a clearance hole, and the mounting protrusion is accommodated in the clearance hole. The second rotating member is provided with a main body and a plug-in protrusion protruding from the main body. The plug-in protrusion is inserted into the mounting hole, and the main body is located on the side of the first rotating member away from the main body. The clockwise limiting member is provided with a first matching arc surface. The first matching arc surface extends in the counterclockwise direction towards the second rotating member to contact and match the outer periphery of the plug-in protrusion. At the position where the second rotating member contacts the first matching arc surface, the tangent line of the first matching arc surface and the tangent line of the outer contour of the mounting protrusion form an included angle in the cross section perpendicular to the axial direction of the plug-in protrusion. The counterclockwise limiting member is arranged on the mounting protrusion, and is provided with a second matching arc surface extending in a clockwise direction towards the first rotating member to contact and match the inner periphery of the first rotating member. At the position where the first rotating member contacts the second matching arc surface, the tangent of the second matching arc surface and the tangent of the inner profile of the first rotating member are arranged at an included angle.

2. The acoustic guide module of claim 1, wherein, The fixing member is detachably connected to the main machine.

3. The acoustic guide module of claim 1, wherein, The fixing member is provided with a bayonet, and is clamped to the sound hole through the bayonet. The first sound guide channel and the second sound guide channel are formed of sound insulation material, or the surfaces of the first sound guide channel and the second sound guide channel are coated with sound insulation paint.

4. The acoustic guide module of claim 1, wherein, The first sound guide channel includes a first sub-sound guide channel arranged on the second rotating member and a second sub-sound guide channel arranged on the distance adjusting member. The two ends of the second sound guide channel are communicated with the sound hole and the mounting hole, one end of the first sub-sound guide channel penetrates through the plug-in protrusion to be communicated with the mounting hole, one end of the second sub-sound guide channel is communicated with the other end of the first sub-sound guide channel, and the other end is communicated with the earmuff.

5. The acoustic guide module of claim 4, wherein, The distance adjusting member includes a first adjusting part and a second adjusting part, one end of each of the first adjusting part and the second adjusting part is fixedly connected to the earmuff and the second rotating member respectively, and the other end is movably connected to adjust the distance between the earmuff and the second rotating member.

6. The acoustic guide module of claim 5, wherein, One end of one of the first adjusting part and the second adjusting part is provided with an inner tooth groove, and the other end is provided with an outer tooth protrusion, the outer tooth protrusion is inserted into and engaged with the inner tooth groove to movably connect the first adjusting part and the second adjusting part.

7. A head-mounted display device, comprising: The sound guide module includes the sound guide module according to any one of claims 1 to 6, and the main machine for installing the sound guide module.

Images