Head-mounted display devices

Abstract

The present invention discloses a head-mounted display device, which includes a head-mounted display body and an audio playback device, wherein the audio playback device includes: a sound output module for playing the audio of the head-mounted display device; a posture sensor for detecting the current posture of the sound output module; a posture adjustment mechanism connected to the sound output module; a control module, which is electrically connected to the posture sensor and the posture adjustment mechanism, and is used to obtain the current posture detected by the posture sensor and determine whether the current posture is consistent with a preset target posture. If not, the posture adjustment mechanism is controlled to adjust the current posture of the sound output module to be consistent with the target posture, wherein the target posture is a posture in which the sound output direction points to the user's ear hole. The present invention can ensure that the posture of the sound output module can always match the user's ear when the head-mounted display device is worn in different wearing states, thereby avoiding audio leakage and affecting the user's sound quality experience.

Description

Technical Field

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

[0002] VR (Virtual Reality) devices or AR (Augmented Reality) devices are head-mounted display devices that are currently developing and becoming increasingly popular. Currently, head-mounted display devices on the market can be divided into two categories: VR / AR helmets and VR / AR all-in-one devices. Both types of devices inevitably have problems with the auditory experience due to improper wearing posture. This is because when designing the head-mounted display device, the position and orientation of the sound outlet are set to match the user's ear hole to smoothly transmit the sound to the user's ear and avoid audio leakage. However, due to the different sizes and shapes of users' heads, different users often have different wearing postures when wearing head-mounted display devices. As a result, when the head-mounted display device is worn, the position of the sound module cannot match the user's ear well, making it difficult for the head-mounted display device to provide each wearer with an excellent high and low frequency performance auditory experience, thereby seriously reducing the user's immersive experience. Summary of the Invention

[0003] The main purpose of the present invention is to provide a head-mounted display device, which aims to solve the technical problem that when the head-mounted display device is worn, the position of the sound module is easily unable to match the user's ear, resulting in a poor auditory experience.

[0004] To achieve the above-mentioned object, the present invention provides a head-mounted display device, the head-mounted display device comprising a head-mounted display body and an audio playback device, the audio playback device comprising:

[0005] An audio output module, configured to play the audio of the head mounted display device;

[0006] A posture sensor, used to detect the current posture of the sound output module;

[0007] a posture adjustment mechanism, connected to the sound output module, for adjusting the posture of the sound output module so as to adjust the sound output direction of the sound output module;

[0008] The control module is electrically connected to the posture sensor and the posture adjustment mechanism, respectively, and is used to obtain the current posture detected by the posture sensor and determine whether the current posture is consistent with the preset target posture. If not, the posture adjustment mechanism is controlled to adjust the current posture of the sound output module to be consistent with the target posture, wherein the target posture is the posture in which the sound output direction points to the user's ear hole.

[0009] Optionally, the sound output module includes a speaker and a sound guide tube connected to each other, the speaker is arranged in the sound guide tube, and the sound guide tube is used to guide the sound output direction of the speaker;

[0010] The position adjustment mechanism is connected to the sound guide tube and is used to adjust the position of the sound guide tube so as to adjust the sound output direction of the sound output module to point to the user's ear hole;

[0011] The posture sensor is used to detect the posture of the sound guide tube, and the control module is used to control the posture adjustment mechanism to adjust the posture of the sound guide tube to be consistent with the target posture.

[0012] Optionally, the posture adjustment mechanism includes:

[0013] The first posture adjustment module includes a first transmission component and a first drive component that are electrically connected. The first transmission component is connected to the sound guide tube. The first drive component is used to drive the first transmission component to drive the sound guide tube to produce a posture change in a first direction, wherein the posture change includes swinging.

[0014] Optionally, the first driving component includes a first motor;

[0015] The first transmission component includes a first rotating shaft and a first reversing unit, wherein the first motor, the first rotating shaft, the first reversing unit and the sound guide tube are connected in sequence.

[0016] Optionally, the first reversing unit includes a connecting shaft, and a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear is provided with a center hole, the first rotating shaft is nested in the center hole, one end of the connecting shaft is fixedly connected to the second bevel gear, and the other end of the connecting shaft is fixedly connected to the sound guide tube, wherein the rotation axis of the first bevel gear and the rotation axis of the second bevel gear form a preset angle with each other, the rotation axis of the first rotating shaft is collinear with the center axis of the center hole, and the rotation axis of the connecting shaft is collinear with the rotation axis of the second bevel gear.

[0017] Optionally, the posture adjustment mechanism further includes:

[0018] The second posture adjustment module includes an electrically connected second transmission component and a second drive component, the second transmission component is connected to the sound guide tube, and the second drive component is used to drive the second transmission component to drive the sound guide tube to produce a posture change in a second direction, wherein the first direction and the second direction form a preset angle with each other.

[0019] Optionally, the second driving component includes a second motor;

[0020] The second transmission component includes a second rotating shaft and a second reversing unit, wherein the second motor, the second rotating shaft, the second reversing unit and the sound guide tube are connected in sequence.

[0021] Optionally, the second reversing unit includes a receiving member and a steering structure member, the steering structure member includes a connecting portion, and a turning portion bent and extended on one side of the connecting portion, a through hole is provided on the connecting portion, the second rotating shaft is nested in the through hole, one end of the receiving member is fixedly connected to the turning portion, and the other end of the receiving member is fixedly connected to the sound guide tube.

[0022] Optionally, the head display body includes a display part and a wearing part that are connected to each other, a sound hole is provided on the wearing part, and the sound hole is opened at a position close to the user's ear hole when the user wears the head-mounted display device, and the sound output module is installed at the sound hole.

[0023] Optionally, the sound outlet is opened at a position just above the ear hole of the user when the user wears the head mounted display device, and the target posture is a posture in which the sound outlet is directed directly downward.

[0024] The technical solution of the present application is to provide a head-mounted display device including a head-mounted display body and an audio playback device, wherein the audio playback device includes a sound output module, a posture sensor, a posture adjustment mechanism and a control module, wherein the sound output module is used to play the audio of the head-mounted display device, the posture sensor is used to detect the current posture of the sound output module, the posture adjustment mechanism is connected to the sound output module, and is used to adjust the posture of the sound output module to adjust the sound output direction of the sound output module, and the control module is electrically connected to the posture sensor and the posture adjustment mechanism respectively, and is used to obtain the current posture detected by the posture sensor, and determine whether the current posture is consistent with a preset target posture. If not, the posture adjustment mechanism is controlled to adjust the current posture of the sound output module to be consistent with the target posture, wherein the target posture is a posture with the sound output direction pointing to the user's ear hole.

[0025] That is, when facing different wearing postures of users for head-mounted display devices (for example, improper wearing or differences in wearing postures due to factors such as the user's head shape and size), this application uses a posture sensor to sense the current posture of the sound module, and then the control module identifies whether the current posture matches the user's ear. If not, the posture adjustment mechanism is controlled to adjust the current posture of the sound module, so that no matter what the user's wearing posture is, the sound direction of the sound module can be guaranteed to always be towards the wearer's ear, so that it can better match the user's ear, avoid audio leakage and affect the user's sound quality experience, and thus solve the technical problem that when the head-mounted display device is in the wearing state, the posture of the sound module is easily unable to match the user's ear, resulting in poor auditory experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0027] Figure 1 This is a schematic structural diagram of a head-mounted display device at one viewing angle in an embodiment of the present application;

[0028] Figure 2 This is a structural diagram of an audio playback device in an embodiment of the present application at one viewing angle;

[0029] Figure 3 This is a structural diagram of the audio playback device in another perspective according to an embodiment of the present application;

[0030] Figure 4 A schematic structural diagram of the head-mounted display device in another perspective according to an embodiment of the present application;

[0031] Figure 5 for Figure 4 A partial enlarged view of the middle sound hole;

[0032] Figure 6 2 is a structural diagram of the audio playback device in an embodiment of the present application from another perspective.

[0033] Description of Figure Numbers:

[0034] Label name Label name 1000 Head-mounted display devices 22 Second posture adjustment module 100 Headset 211 First transmission component 200 Audio playback device 212 First driving component 4 Display 2111 First rotating shaft 5 Wearing part 2112 The first reversing unit 51 Sound hole 21121 First bevel gear 1 Sound output module 21122 Second bevel gear 11 trumpet 21123 connecting shaft 12 Sound guide tube 221 Second driving component 2 Posture adjustment mechanism 222 Second transmission component 21 First posture adjustment module 2221 Second shaft 2222 Second reversing unit 22221 Attachment 22222 Steering structure 1a Connection 1b Turning part

[0035] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0037] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0038] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”; and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0039] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0040] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0041] Currently, head-mounted display devices on the market can be divided into two categories: VR / AR helmets and VR / AR all-in-one devices. Both types of devices inevitably have the problem of affecting the auditory experience due to improper wearing posture. This is because when designing the head-mounted display device, the position and direction of the sound holes are set to match the user's ear holes to smoothly transmit the sound to the user's ears and avoid audio leakage. However, due to the different sizes and shapes of users' heads, different users often have different wearing postures when wearing head-mounted display devices. Even the same user may have different wearing postures during different wearing processes due to the degree of wearing. Therefore, the position of the sound module of the head-mounted display device may not be able to match the user's ears well in different wearing states, making it difficult for the head-mounted display device to provide each wearer with an excellent high and low frequency performance auditory experience, which seriously reduces the user's immersive experience.

[0042] Based on this, please refer to Figures 1 to 3 The embodiment of the present application provides a head-mounted display device 1000, characterized in that the head-mounted display device 1000 includes a head-mounted display body 100 and an audio playback device 200, and the audio playback device 200 includes:

[0043] Audio output module 1, used to play the audio of the head-mounted display device 1000;

[0044] A posture sensor (not shown), used to detect the current posture of the sound module 1;

[0045] The posture adjustment mechanism 2 is connected to the sound output module 1 and is used to adjust the posture of the sound output module 1 so as to adjust the sound output direction of the sound output module 1;

[0046] The control module (not shown) is electrically connected to the posture sensor and the posture adjustment mechanism 2, respectively, and is used to obtain the current posture detected by the posture sensor and determine whether the current posture is consistent with the preset target posture. If not, the posture adjustment mechanism 2 is controlled to adjust the current posture of the sound output module 1 to be consistent with the target posture, wherein the target posture is the posture in which the sound output is directed toward the user's ear hole.

[0047] In this embodiment, the head-mounted display device 1000 can be, for example, a mixed reality (MR) device, an augmented reality (AR) device, a virtual reality (VR) device, an extended reality (XR) device, or some combination thereof.

[0048] In this embodiment, the sound output module 1 may be a microphone for playing audio from the head-mounted display device 1000. The posture sensor may be an acceleration sensor (e.g., a gravity sensor) or an IMU (Inertial Measurement Unit) sensor, etc., so long as it can detect the posture of the sound output module 1. This embodiment does not impose any specific limitation on this.

[0049] In this embodiment, the posture adjustment mechanism 2 is used to adjust the current posture of the sound output module 1. Those skilled in the art will appreciate that the posture can be a spatial position and / or a spatial angle. That is, adjusting the posture of the sound output module 1 can be to control the displacement of the sound output module 1 and / or to control the angle rotation of the sound output module 1, thereby achieving the purpose of adjusting the sound output direction of the sound output module 1 to point toward the user's ear hole. It should be noted that the specific embodiment of the mechanical structure of the posture adjustment mechanism 2 is not specifically limited in this embodiment, and is based on the ability to adjust the posture of the sound output module 1.

[0050] Those skilled in the art will understand that, since the position of the sound output module 1 relative to the user's ear hole is often different in different wearing states of the head-mounted display device 1000, in order to make the sound output direction of the sound output module 1 point to the user's ear hole, the direction or distance of the posture adjustment mechanism 2 for adjusting the posture of the sound output module 1 is often different in different wearing states of the head-mounted display device 1000. In this embodiment, the posture sensor detects the current posture and determines whether the current posture is consistent with the preset target posture. If the current posture is inconsistent with the preset target posture, the posture adjustment mechanism 2 adjusts the current posture of the sound output module 1 to be consistent with the target posture based on the spatial posture difference between the current posture and the target posture, so as to achieve the purpose of pointing the sound output direction of the sound output module 1 to the user's ear hole, thereby improving the output sound effect of the head-mounted display device 1000.

[0051] It is easy to understand that if it is detected that the current posture of the sound output module 1 is consistent with the target posture in the current wearing state, no processing is required, that is, there is no need to adjust the current posture of the sound output module 1 through the posture adjustment mechanism 2.

[0052] In this embodiment, the control module determines whether the current posture of the sound output module 1 is consistent with the preset target posture, thereby determining whether the sound output direction of the sound output module 1 is pointing to the user's ear hole, so that the head-mounted display device 1000 can intelligently detect whether the sound output direction of the sound output module 1 is aligned with the wearer's ear hole position, thereby avoiding sound leakage during the wearing and use of the head-mounted display device 1000.

[0053] For further information, please refer to Figure 1 、 Figure 4 and Figure 5The head display body 100 includes a display part 4 and a wearing part 5 that are connected to each other. A sound hole 51 is provided on the wearing part 5, and the sound hole 51 is opened at a position close to the user's ear hole when the user wears the head-mounted display device 1000. The sound output module 1 is installed at the sound hole 51.

[0054] Exemplarily, the sound outlet 51 is opened at a position just above the user's ear hole when the user wears the head mounted display device 1000, and the target posture is a posture in which the sound is directed directly downward.

[0055] In this embodiment, a head display body 100 is provided with a display part 4 and a wearing part 5 that are connected to each other, and a sound hole 51 is provided on the wearing part 5. The sound hole 51 is opened at a position close to the user's ear hole when the user wears the head-mounted display device 1000. The sound module 1 is installed at the sound hole 51, so that the sound module 1 can be closer to the user's ear hole in the initial state (the state before the posture adjustment is performed), and then the sound direction of the sound module 1 can be smoothly adjusted to the direction pointing to the user's ear hole by only fine-tuning the posture of the sound module 1 through the posture adjustment mechanism 2. This further achieves the solution to the technical problem that when the head-mounted display device 1000 is worn, the posture of the sound module is easily unable to match the user's ear, resulting in a poor auditory experience, with a lower structural cost.

[0056] Please refer to Figures 1 to 3 The technical solution of the embodiment of the present application is to provide a head-mounted display device 1000 including a head display body 100 and an audio playback device 200, wherein the audio playback device 200 includes a sound output module 1, a posture sensor, a posture adjustment mechanism 2 and a control module, wherein the sound output module 1 is used to play the audio of the head-mounted display device 1000, the posture sensor is used to detect the current posture of the sound output module 1, the posture adjustment mechanism 2 is connected to the sound output module 1, and is used to adjust the posture of the sound output module 1 to adjust the sound output direction of the sound output module 1, and the control module is electrically connected to the posture sensor and the posture adjustment mechanism 2 respectively, and is used to obtain the current posture detected by the posture sensor and determine whether the current posture is consistent with a preset target posture. If not, the posture adjustment mechanism 2 is controlled to adjust the current posture of the sound output module 1 to be consistent with the target posture, wherein the target posture is a posture in which the sound output direction is directed toward the user's ear hole.

[0057] That is, when faced with different wearing postures of the user for the head-mounted display device 1000 (for example, improper wearing or differences in wearing posture due to factors such as the user's head shape and size), the embodiment of the present application uses a posture sensor to sense the current posture of the sound output module 1, and then the control module identifies whether the current posture matches the user's ear. If not, the posture adjustment mechanism 2 is controlled to adjust the current posture of the sound output module 1, so that no matter what the user's wearing posture is, the sound direction of the sound output module 1 can always be guaranteed to be towards the wearer's ear, so that it can better match the user's ear, avoid audio leakage and affect the user's sound quality experience, and thus solve the technical problem that when the head-mounted display device 1000 is in the wearing state, the posture of the sound output module is easily unable to match the user's ear, resulting in poor auditory experience.

[0058] In one possible implementation, please refer to Figures 1 to 3 The sound output module 1 includes a speaker 11 and a sound guide tube 12 connected to each other. The speaker 11 is arranged in the sound guide tube 12, and the sound guide tube 12 is used to guide the sound output direction of the speaker 11;

[0059] The position adjustment mechanism 2 is connected to the sound guide tube 12 and is used to adjust the position of the sound guide tube 12 so as to adjust the sound output direction of the sound output module 1 to point to the user's ear hole;

[0060] The posture sensor is used to detect the posture of the sound guide tube 12, and the control module is used to control the posture adjustment mechanism 2 to adjust the posture of the sound guide tube 12 to be consistent with the target posture.

[0061] In this embodiment, the sound output module 1 is provided with a speaker 11 and a sound guide tube 12 which are connected to each other. The speaker 11 is arranged in the sound guide tube 12 so that the audio generated by the speaker 11 can always be on the sound output path of the sound guide tube 12, thereby avoiding audio leakage and ensuring reliable sound transmission.

[0062] In this embodiment, the position adjustment mechanism 2 is used to adjust the position of the sound guide tube 12. Those skilled in the art will know that the position can be a spatial position and / or a spatial angle, that is, adjusting the position of the sound guide tube 12 can be to control the displacement of the sound guide tube 12 and / or to control the angle rotation of the sound guide tube 12, so that the speaker 11 arranged in the sound guide tube 12 can align the played audio with the wearer's ear hole position along the guiding direction of the sound guide tube 12, thereby ensuring that the sound output direction of the sound output module 1 is always toward the wearer's ear, avoiding audio leakage and affecting the user's sound quality experience.

[0063] In this embodiment, the sound output module 1 is provided with a speaker 11 and a sound guide tube 12 connected to each other, wherein the speaker 11 is arranged in the sound guide tube 12, and the sound guide tube 12 is used to guide the sound output direction of the speaker 11. The posture adjustment mechanism 2 is connected to the sound guide tube 12 and is used to adjust the posture of the sound guide tube 12 to adjust the sound output direction of the sound output module 1 to point to the user's ear hole; the posture sensor is used to detect the posture of the sound guide tube 12, and the control module is used to control the posture adjustment mechanism 2 to adjust the posture of the sound guide tube 12 to be consistent with the target posture, thereby achieving the purpose of adjusting the sound output direction of the sound output module 1 to point to the user's ear hole. In this embodiment, a sound guide tube 12 with a sound output hole 51 based on a posture sensor is proposed. When there is a problem with the user's wearing state, the posture sensor adjusts the direction of the sound guide tube 12 by sensing the position state of the speaker 11 and the sound guide tube 12, so that regardless of the user's wearing posture, the sound output direction of the speaker 11 can always be guaranteed to be towards the wearer's ear, thereby preserving the integrity of the audio signal, improving the sound effect, and bringing a more immersive experience to the user.

[0064] In one possible implementation, the posture adjustment mechanism 2 includes:

[0065] The first posture adjustment module 21 includes an electrically connected first transmission component 211 and a first driving component 212. The first transmission component 211 is connected to the sound guide tube 12. The first driving component 212 is used to drive the first transmission component 211 to drive the sound guide tube 12 to produce a posture change in the first direction, wherein the posture change includes swinging.

[0066] In this embodiment, the first transmission component 211 is a component having a transmission function, such as a gear transmission structure, a screw transmission structure, a chain transmission structure, or a belt transmission structure, which is not specifically limited in this embodiment. The first transmission component 211 can drive the sound guide tube 12 to change its position in the first direction under power.

[0067] In one embodiment, the first direction may be a vertical direction, and the first transmission component 211 may drive the sound guide tube 12 to swing in the vertical direction under power drive. In another embodiment, the first direction may be a horizontal direction, and the first transmission component 211 may drive the sound guide tube 12 to swing in the horizontal direction under power drive. In yet another embodiment, the first direction may be an inclined direction with a preset angle to the horizontal plane, and the first transmission component 211 may drive the sound guide tube 12 to swing in the inclined direction under power drive. This embodiment does not make specific limitations on this. It should be noted that the swing may be a swing of angular rotation or a swing of linear displacement.

[0068] In this embodiment, the first driving component 212 is a component with a driving function, such as a motor, etc. The first driving component 212 is specifically used to drive the first transmission component 211 to drive the sound guide tube 12 to produce a posture change in the first direction, wherein the posture change includes swinging.

[0069] In this embodiment, a first posture adjustment module 21 is provided to include an electrically connected first transmission component 211 and a first driving component 212, wherein the first transmission component 211 is connected to the sound guide tube 12, and the first driving component 212 drives the first transmission component 211 to drive the sound guide tube 12 to produce a posture change in the first direction, thereby adjusting the distance and / or direction of the sound position of the head-mounted display device 1000 from the ear, and the sound direction of the output audio relative to the wearer's ear canal can be adjusted, so that no matter what the user's wearing posture is, the sound direction of the speaker 11 can be ensured to always be towards the wearer's ear, thereby retaining the integrity of the audio signal, improving the user's sound quality experience, and complying with the development trend of virtual reality technology to improve sound quality.

[0070] In one practicable manner, the first driving component 212 includes a first motor;

[0071] The first transmission component 211 includes a first rotating shaft 2111 and a first reversing unit 2112 , wherein the first motor, the first rotating shaft 2111 , the first reversing unit 2112 and the sound guide tube 12 are connected in sequence.

[0072] In this embodiment, the first reversing unit 2112 is used to reverse the first transmission direction of the first rotating shaft 2111 to the second transmission direction when the first rotating shaft 2111 rotates, wherein the first transmission direction is different from the second transmission direction.

[0073] In this embodiment, the first driving component 212 is provided with a first motor, and the first transmission component 211 is provided with a first rotating shaft 2111 and a first reversing unit 2112. Then, the first motor, the first rotating shaft 2111, the first reversing unit 2112, and the sound guide tube 12 are sequentially connected, so that the first motor drives the first rotating shaft 2111 to rotate, and then the first reversing unit 2112 reverses the first transmission direction of the rotation of the first rotating shaft 2111 to a second transmission direction (the first transmission direction is different from the second transmission direction), thereby driving the sound guide tube 12 to swing in the second transmission direction (the swing can be an angular rotation swing or a linear displacement swing). This achieves adjustment of the distance and / or direction between the sound emission position of the head-mounted display device 1000 and the ear, thereby ensuring that regardless of the user's wearing posture, the sound emission position of the speaker 11 can be changed to better correspond to the user's ear, thereby improving the product sound effect, enhancing the user's auditory experience, and improving the wearability of the head-mounted display device 1000.

[0074] In one possible embodiment, the first reversing unit 2112 includes a connecting shaft 21123, and a first bevel gear 21121 and a second bevel gear 21122 that are meshed with each other, the first bevel gear 21121 is provided with a center hole, the first rotating shaft 2111 is nested in the center hole, one end of the connecting shaft 21123 is fixedly connected to the second bevel gear 21122, and the other end of the connecting shaft 21123 is fixedly connected to the sound guide tube 12, wherein the rotation axis of the first bevel gear 21121 and the rotation axis of the second bevel gear 21122 form a preset angle with each other, the rotation axis of the first rotating shaft 2111 is collinear with the center axis of the center hole, and the rotation axis of the connecting shaft 21123 is collinear with the rotation axis of the second bevel gear 21122.

[0075] In this embodiment, the rotation axis of the first bevel gear 21121 and the rotation axis of the second bevel gear 21122 form a preset angle with each other, and the preset angle can be 30 degrees, 45 degrees, 60 degrees or 90 degrees, which is not specifically limited in this embodiment.

[0076] In this embodiment, the first bevel gear 21121 is provided with a center hole, and the first rotating shaft 2111 is nested and fitted in the center hole. The rotation axis of the first rotating shaft 2111 is colinear with the center axis of the center hole, so that the first bevel gear 21121 can rotate along with the rotation of the first rotating shaft 2111. Since the first bevel gear 21121 and the second bevel gear 21122 are meshed with each other, and the rotation axis of the first bevel gear 21121 and the rotation axis of the second bevel gear 21122 form a preset angle with each other, when the first rotating shaft 2111 drives the first bevel gear 21121 to rotate, the first bevel gear 21121 transmits power to the second bevel gear 21122, driving the second bevel gear 21122 to rotate. Then, the second bevel gear 21122 transmits power to the connecting shaft 21123, driving the connecting shaft 21123 to rotate. The rotation of the connecting shaft 21123 drives the sound guide tube 12 to change its posture (the posture change includes swinging), and then adjusts the sound direction of the output audio relative to the wearer's ear canal, so that no matter what the user's wearing posture is, the sound guide tube 12 can smoothly adjust its direction to ensure that the sound direction of the speaker 11 is always towards the wearer's ear, avoiding audio leakage, and allowing the wearer to obtain the best sound quality experience. It effectively solves the technical problem that when the head-mounted display device 1000 is in the wearing state, the posture of the sound module is easily unable to match the user's ear, resulting in a poor auditory experience, with a lower structural cost.

[0077] In one possible implementation, please refer to Figures 1 to 3 , the posture adjustment mechanism 2 also includes:

[0078] The second posture adjustment module 22 includes an electrically connected second transmission component 222 and a second drive component 221. The second transmission component 222 is connected to the sound guide tube 12. The second drive component 221 is used to drive the second transmission component 222 to drive the sound guide tube 12 to produce a posture change in the second direction, wherein the first direction and the second direction form a preset angle with each other.

[0079] In this embodiment, the second transmission component 222 is a component having a transmission function, such as a gear transmission structure, a screw transmission structure, a chain transmission structure, or a belt transmission structure, which is not specifically limited in this embodiment. The second transmission component 222 can drive the sound guide tube 12 to change its position in the second direction under power.

[0080] It should be noted that the second direction forms a preset angle with the first direction. The preset angle can be 30 degrees, 45 degrees, 60 degrees, or 90 degrees. This embodiment does not specifically limit this, but is preferably 90 degrees. For example, when the preset angle is 90 degrees and the first direction is vertical, the second direction is horizontal. When the preset angle is 90 degrees and the first direction is horizontal, the second direction is vertical.

[0081] In one embodiment, the second direction may be a vertical direction, and the second transmission component 222 may drive the sound guide tube 12 to swing in the vertical direction under power. In another embodiment, the second direction may be a horizontal direction, and the second transmission component 222 may drive the sound guide tube 12 to swing in the horizontal direction under power. In yet another embodiment, the second direction may be an inclined direction with a preset angle to the horizontal plane, and the second transmission component 222 may drive the sound guide tube 12 to swing in the inclined direction under power. This embodiment does not make specific restrictions on this. It should be noted that the swing may be a swing of angular rotation or a swing of linear displacement.

[0082] In this embodiment, the second driving component 221 is a component with a driving function, such as a motor, etc. The second driving component 221 is specifically used to drive the second transmission component 222 to drive the sound guide tube 12 to produce a posture change in the second direction, wherein the posture change includes swinging.

[0083] In this embodiment, based on the ability to drive the first transmission component 211 through the first driving component 212 to drive the sound guide tube 12 to produce a posture change in the first direction, the second transmission component 222 can be driven by the second driving component 221 to drive the sound guide tube 12 to produce a posture change in the second direction, wherein the first direction is different from the second direction (that is, the first direction and the second direction form a preset angle with each other), so that the audio output position of the head-mounted display device 1000 can produce a posture change in at least two spatial dimensions, so as to accurately adjust the current posture of the sound output module 1 to be consistent with the target posture, effectively ensure that the sound output direction of the speaker 11 can always be directed towards the wearer's ear, avoid audio leakage, and improve the wearer's sound quality experience, thereby solving the technical problem that when the head-mounted display device 1000 is in the wearing state, the posture of the sound output module is easily unable to match the user's ear, resulting in a poor auditory experience.

[0084] In one practicable manner, the second driving component 221 includes a second motor;

[0085] The second transmission component 222 includes a second rotating shaft 2221 and a second reversing unit 2222 , wherein the second motor, the second rotating shaft 2221 , the second reversing unit 2222 and the sound guide tube 12 are connected in sequence.

[0086] In this embodiment, the second reversing unit 2222 is used to reverse the third transmission direction of the second rotating shaft 2221 to a fourth transmission direction when the second rotating shaft 2221 rotates, wherein the third transmission direction is different from the fourth transmission direction.

[0087] To help understand the technical concept or technical principle of the embodiments of the present application, a specific embodiment is listed. In this specific embodiment, the posture adjustment mechanism 2 can adjust the posture of the sound output module 1. Specifically, the second motor is connected to the steering structure 22222, the receiving member 22221, and the sound guide tube 12 via the second rotating shaft 2221. The rotation of the second motor can indirectly drive the sound guide tube 12 to swing up and down. The first motor is connected to the sound guide tube 12 via the first rotating shaft 2111, the first bevel gear 21121, the second bevel gear 21122, and the connecting shaft 21123. The rotation of the first motor can indirectly drive the sound guide tube 12 to swing left and right. This ensures that the sound guide tube 12 can smoothly adjust its direction regardless of the user's wearing state, ensuring that the sound output direction of the speaker 11 is always towards the wearer's ears, allowing the wearer to obtain the best sound quality experience. It should be noted that this specific embodiment is only used to help understand the technical principle or technical concept of the embodiments of the present application and does not constitute a limitation of the present application. Simple transformations based on this technical concept in more forms should all fall within the scope of protection of the present application.

[0088] In this embodiment, the second driving component 221 is provided with a second motor, and the second transmission component 222 is provided with a second rotating shaft 2221 and a second reversing unit 2222. Then, the second motor, the second rotating shaft 2221, the second reversing unit 2222 and the sound guide tube 12 are connected in sequence, so that the second motor drives the second rotating shaft 2221 to rotate, and then the second reversing unit 2222 changes the third transmission direction of the second rotating shaft 2221 to the fourth transmission direction (the third transmission direction is different from the fourth transmission direction), thereby driving the sound guide tube 12 to swing in the fourth transmission direction (the fourth transmission direction). The swing can be a swing of angular rotation or a swing of linear displacement), which realizes that on the basis of being able to control the sound guide tube 12 to produce a posture change in the first direction, the second transmission component 222 can be driven by the second driving component 221 to drive the sound guide tube 12 to produce a posture change in the second direction, thereby effectively achieving the adjustment of the distance and / or direction between the sound position of the head-mounted display device 1000 and the ear, ensuring that regardless of the user's wearing posture, the sound position of the speaker 11 can match the user's ear, thereby improving the product sound effect and improving the wearing universality of the head-mounted display device 1000.

[0089] Further, in a possible implementation, please refer to Figure 2 、 Figure 3 and Figure 6 The second reversing unit 2222 includes a connecting member 22221 and a steering structure member 22222. The steering structure member 22222 includes a connecting portion 1a and a turning portion 1b bent and extended on one side of the connecting portion 1a. A through hole is provided on the connecting portion 1a. The second rotating shaft 2221 is nested in the through hole. One end of the connecting member 22221 is fixedly connected to the turning portion 1b, and the other end of the connecting member 22221 is fixedly connected to the sound guide tube 12.

[0090] The receiving member 22221 and the steering structural member 22222 may be integrally provided structural members.

[0091] In this embodiment, the rotation axis of the second rotation shaft 2221 is collinear with the central axis of the through hole.

[0092] In this embodiment, the second reversing unit 2222 is provided with a receiving member 22221 and a steering structure 22222, wherein the steering structure 22222 includes a connecting portion 1a and a turning portion 1b bent and extended on one side of the connecting portion 1a, a through hole is provided on the connecting portion 1a, the second rotating shaft 2221 is nested and matched with the through hole, one end of the receiving member 22221 is fixedly connected to the turning portion 1b, and the other end of the receiving member 22221 is fixedly connected to the sound guide tube 12, so that the steering structure 22222 It can rotate along with the rotation of the first rotating shaft 2111, and the steering structure 22222 can realize the switching of the third transmission direction of the second rotating shaft 2221 to the fourth transmission direction (the third transmission direction is different from the fourth transmission direction), so as to drive the sound guide tube 12 to swing in the fourth transmission direction (the swing can be a swing of angular rotation or a swing of linear displacement). Specifically, during the rotation of the second rotating shaft 2221, the second rotating shaft 2221 drives the steering structure The connecting portion 1a of 22222 rotates, and since the connecting portion 1a and the turning portion 1b are connected as a whole, the turning portion 1b will rotate along with the rotation of the connecting portion 1a, and since the turning portion 1b is a structure formed by bending and extending on one side of the connecting portion 1a, it is possible to change the third transmission direction of the rotation of the second rotating shaft 2221 to the fourth transmission direction, and drive the supporting member 22221 to rotate through the turning portion 1b, and then the supporting member 22221 drives the sound guide tube 12 to produce a posture change (the posture change includes swinging), thereby accurately and effectively adjusting the distance and / or direction between the sound position of the head-mounted display device 1000 and the ear, so that no matter what the user's wearing posture is, the sound guide tube 12 can smoothly adjust its direction to ensure that the sound direction of the speaker 11 is always facing the wearer's ear, effectively solving the technical problem that when the head-mounted display device 1000 is in the wearing state, the posture of the sound module is easily unable to match the user's ear, resulting in poor auditory experience, with a lower structural cost.

[0093] Exemplarily, the first rotating shaft 2111 and the second rotating shaft 2221 are the same rotating shaft, that is, the first posture adjustment module 21 and the second posture adjustment module 22 share a rotating shaft, which reduces the structural cost and further achieves the solution to the technical problem that when the head-mounted display device 1000 is in the wearing state, the posture of the sound module is easily unable to match the user's ear, resulting in a poor auditory experience, with a lower structural cost.

[0094] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A head-mounted display device, characterized in that: The head-mounted display device includes a head-mounted display body and an audio playback device, and the audio playback device includes: An audio output module, configured to play the audio of the head mounted display device; A posture sensor, used to detect the current posture of the sound output module; a posture adjustment mechanism, connected to the sound output module, for adjusting the posture of the sound output module so as to adjust the sound output direction of the sound output module; a control module, electrically connected to the posture sensor and the posture adjustment mechanism, respectively, for obtaining a current posture detected by the posture sensor and determining whether the current posture is consistent with a preset target posture; if not, controlling the posture adjustment mechanism to adjust the current posture of the sound output module to be consistent with the target posture, wherein the target posture is a posture in which the sound output direction points toward the user's ear hole; The sound output module includes a speaker and a sound guide tube connected to each other, the speaker is arranged in the sound guide tube, and the sound guide tube is used to guide the sound output direction of the speaker; The position adjustment mechanism is connected to the sound guide tube and is used to adjust the position of the sound guide tube so as to adjust the sound output direction of the sound output module to point to the user's ear hole; The posture sensor is used to detect the posture of the sound guide tube, and the control module is used to control the posture adjustment mechanism to adjust the posture of the sound guide tube to be consistent with the target posture; Wherein, the posture adjustment mechanism includes: The first posture adjustment module includes a first transmission component and a first drive component that are electrically connected. The first transmission component is connected to the sound guide tube. The first drive component is used to drive the first transmission component to drive the sound guide tube to produce a posture change in a first direction, wherein the posture change includes swinging.

2. The head-mounted display device according to claim 1, wherein The first driving component includes a first motor; The first transmission component includes a first rotating shaft and a first reversing unit, wherein the first motor, the first rotating shaft, the first reversing unit and the sound guide tube are connected in sequence.

3. The head-mounted display device according to claim 2, wherein: The first reversing unit includes a connecting shaft, and a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is provided with a center hole, and the first rotating shaft is nested in the center hole. One end of the connecting shaft is fixedly connected to the second bevel gear, and the other end of the connecting shaft is fixedly connected to the sound guide tube, wherein the rotating axis of the first bevel gear and the rotating axis of the second bevel gear form a preset angle with each other, the rotating axis of the first rotating shaft is collinear with the center axis of the center hole, and the rotating axis of the connecting shaft is collinear with the rotating axis of the second bevel gear.

4. The head-mounted display device according to claim 1, wherein: The posture adjustment mechanism also includes: The second posture adjustment module includes an electrically connected second transmission component and a second drive component, the second transmission component is connected to the sound guide tube, and the second drive component is used to drive the second transmission component to drive the sound guide tube to produce a posture change in a second direction, wherein the first direction and the second direction form a preset angle with each other.

5. The head-mounted display device according to claim 4, wherein: The second driving component includes a second motor; The second transmission component includes a second rotating shaft and a second reversing unit, wherein the second motor, the second rotating shaft, the second reversing unit and the sound guide tube are connected in sequence.

6. The head-mounted display device according to claim 5, wherein: The second reversing unit includes a receiving member and a steering structure member, the steering structure member includes a connecting portion and a turning portion bent and extended on one side of the connecting portion, a through hole is provided on the connecting portion, the second rotating shaft is nested in the through hole, one end of the receiving member is fixedly connected to the turning portion, and the other end of the receiving member is fixedly connected to the sound guide tube.

7. The head mounted display device according to any one of claims 1 to 6, wherein: The head display body includes a display part and a wearing part that are connected to each other. A sound hole is provided on the wearing part, and the sound hole is opened at a position close to the user's ear hole when the user wears the head-mounted display device. The sound output module is installed at the sound hole.

8. The head-mounted display device according to claim 7, wherein: The sound outlet is opened at a position just above the ear hole of the user when the user wears the head mounted display device, and the target posture is a posture in which the sound outlet is directed directly downward.

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