Head-mounted display device

Abstract

The utility model provides head-mounted display equipment. The head-mounted display equipment comprises a head-mounted display part and a head-mounted supporting part, the head-mounted supporting part comprises two adjusting belts, a head ring structure is defined by the two adjusting belts, each adjusting belt comprises a connecting end and an adjusting end opposite to the connecting end, and each adjusting belt is provided with a rack structure at the adjusting end; the length adjusting structure comprises an operable part and a rotating gear capable of rotating under the control of the operable part, the rotating gear is meshed with the rack structures on the two adjusting belts respectively, and when the rotating gear rotates, the two rack structures can be driven to move face to face or back to back so as to adjust the circumferential length of the head ring structure; a battery is contained in the shell structure, the shell structure comprises a front end facing the space defined by the head ring structure and a rear end back to the space defined by the head ring structure, a concave cavity is formed in the inner side wall of the front end, and the rotating gear and the rack structure are both located in the concave cavity. The head-mounted display device is suitable for different head circumferences, the adjustment mode is convenient, and the structure is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of smart wearable display technology, and in particular to a head-mounted display device. Background Technology

[0002] With the continuous development of smart wearable device technology, various types of smart wearable devices are emerging. Among them, head-mounted smart display devices can have an independent operating system, just like smart mobile terminals, and can perform functions such as data processing and network communication according to user instructions. They can also create a virtual reality scene with a realistic and immersive experience for users by effectively integrating multimedia data. Furthermore, they can overlay and fuse various types of information with environmental images through image analysis and processing, bringing a user experience with augmented reality effects. As a result, they are increasingly favored by many users.

[0003] Head-mounted display devices mainly consist of a headband support worn on the head and a head-mounted display unit connected to the headband support. In related technologies, the wearing size of head-mounted display devices is generally fixed and cannot be adjusted, resulting in a limited range of applications and poor comfort; or, even if the wearing size of the head-mounted display device is adjustable, the adjustment mechanism is complex and bulky, leading to reduced battery space, and the adjustment method is cumbersome and has a poor feel. Utility Model Content

[0004] In order to solve at least one of the technical problems in the prior art, the present disclosure provides a head-mounted display device.

[0005] The technical solutions provided in this disclosure are as follows:

[0006] This disclosure provides a head-mounted display device, including a head-mounted display portion and a head-mounted support portion connected to the head-mounted display portion; the head-mounted support portion includes:

[0007] Two adjustment straps are provided, which together form a headband structure that can accommodate the user's head. Each adjustment strap includes a connecting end connected to the head-mounted display portion and an adjustment end disposed opposite to the connecting end. Each adjustment strap has a rack structure at the adjustment end.

[0008] The length adjustment structure includes an operable component and a rotating gear that can be rotated under the control of the operable component. The rotating gear meshes with the rack structures on the two adjustment belts respectively. When the rotating gear rotates, it can drive the two rack structures to move towards or away from each other to adjust the circumferential length of the head ring structure.

[0009] The housing structure has an internal cavity for housing a battery. The housing structure includes a front end facing the space enclosed by the headband structure and a rear end facing away from the space enclosed by the headband structure. The inner wall of the front end has a recessed cavity, which is recessed on the side facing the space enclosed by the headband structure. The rotating gear and the rack structure are both located in the recessed cavity.

[0010] For example, the length adjustment structure further includes a bracket, the bracket having a through hole, and the inner circumferential side of the through hole having an internal tooth structure;

[0011] The length adjustment structure further includes a ratchet, which includes a drive shaft and at least one elastic cantilever connected to the circumferential surface of the drive shaft; the drive shaft passes through the through hole and is coaxially connected to the rotating gear; along the radial direction of the drive shaft, the outer side of the elastic cantilever away from the drive shaft is provided with ratchet teeth, which mesh with the internal tooth structure;

[0012] The operable component is provided with at least one set of driving protrusions, and one set of driving protrusions cooperates with a corresponding elastic cantilever. When the operable component rotates in a first direction, the ratchet slides relative to the internal tooth structure in the first direction. When the operable component rotates in a second direction opposite to the first direction, the ratchet disengages from the internal tooth structure.

[0013] For example, the elastic cantilever and the circumferential surface of the drive shaft enclose a first space; the elastic cantilever includes a support arm, a bending arm and a free end connected in sequence, the support arm is connected to the drive shaft, the bending arm surrounds the drive shaft along the circumferential part of the drive shaft, the free end protrudes relative to the bending arm toward the side where the drive shaft is located, and the free end is provided with a first inclined pushing surface;

[0014] A set of the driving protrusions is disposed in the corresponding first space, and the driving protrusions are provided with a second inclined pushing surface that mates with the first inclined pushing surface; wherein,

[0015] When the operable component rotates along the first direction, the drive protrusion abuts against and pushes the support arm, so that the ratchet slides relative to the internal tooth structure toward the first direction.

[0016] When the operable component rotates in the second direction, the second inclined push surface abuts against and pushes the first inclined push surface, so that the bent arm bends toward the direction of the drive shaft, and the ratchet disengages from the internal tooth structure.

[0017] For example, the bracket is further provided with an annular buckle, the annular buckle having a radial opening along the through hole and a groove extending circumferentially along the through hole; the operable member is provided with a buckle engagement structure, the buckle engagement structure engaging into the groove, and the buckle engagement structure being rotatable relative to the groove about the axis of the through hole.

[0018] For example, the housing structure has an insertion hole on its side wall, the rotating gear is located in the receiving cavity, the adjustment belt passes through the insertion hole so that the rack structure is at least partially located in the receiving cavity, and the operable element is exposed to the outside of the housing structure.

[0019] For example, at least one guide groove is provided on the inner sidewall of the housing structure, the guide groove extends along the movement trajectory of the rack structure, and the rack structure is disposed in the corresponding guide groove.

[0020] For example, at least one stop is provided on the inner sidewall of the housing structure, the stop being configured to cooperate with the rack structure to limit the travel of the rack structure.

[0021] For example, the operable component is located at the rear end, and the housing structure is constructed as an arc-shaped housing structure adapted to the curvature of the headband structure, and the front end is also provided with a bolster elastic support.

[0022] For example, one of the head-mounted display portion and the head-mounted support portion is provided with a first axial hole; the other of the head-mounted display portion and the head-mounted support portion is provided with a second axial hole;

[0023] The head-mounted display device further includes a damping pivot structure, which includes a pivot, a pivot end cap, and a damping assembly. The pivot has a first axial end with a stop skirt, and the pivot has a second axial end that passes through the second shaft hole and the first shaft hole in sequence and is connected to the pivot end cap. The stop skirt and the pivot end cap cooperate with each other to limit the axial movement of the pivot. The damping assembly is sleeved on the pivot.

[0024] For example, one of the head-mounted display portion and the head-mounted support portion is provided with a post, and the first shaft hole is provided on the post;

[0025] The damping assembly includes a damping friction plate and a lubricating pad. The damping friction plate is sleeved on the rotating shaft and located between the orifice and the rotating shaft end cap. The lubricating pad is located between the damping friction plate and the rotating shaft end cap. The damping friction plate is configured to generate a frictional damping force with at least one of the adjacent lubricating pad and the orifice.

[0026] Alternatively, the damping assembly includes an elastic damping ring and a lubricating pad, the elastic damping ring being sleeved on the rotating shaft, and the elastic damping ring being configured to generate a frictional damping force with the first shaft hole.

[0027] For example, the damping shaft structure further includes an anti-loosening screw, at least one first screw hole is provided on the axial second end face of the shaft, at least one second screw hole is provided on the shaft end cover, and the anti-loosening screw is screwed into the first screw hole and the second screw hole.

[0028] For example, the stop skirt is also provided with a foolproof structure, and the periphery of the second shaft hole is provided with a foolproof adapter structure that cooperates with and connects to the foolproof structure; the shaft end cover is also provided with a limiting structure, and the periphery of the first shaft hole is also provided with a limiting adapter structure. The limiting structure and the limiting adapter structure cooperate with each other to limit the rotation angle of the shaft.

[0029] For example, the head-mounted display includes a face mask for conforming to the user's face, the face mask comprising:

[0030] The face mask holder has a hollow frame structure. The face mask holder includes a left eye section and a right eye section. The frame portions corresponding to the left eye section and the right eye section are constructed with a hollow structure. The hollow structure is constructed so that the frame portions corresponding to the left eye section and the right eye section can be elastically deformed when subjected to external force. The face mask holder also has a nose pad structure. The face mask holder includes a side that fits the user's face when in use.

[0031] A fitting bracket is detachably connected to the fitting side of the face mask bracket;

[0032] A flexible facial fit is detachably attached to the side of the fit holder facing the user's face;

[0033] A sunshade covers the outside of the face mask support.

[0034] The beneficial effects of the embodiments disclosed herein are as follows:

[0035] The head-mounted display device provided in this embodiment includes a head-mounted display portion and a head-mounted support portion. The head-mounted support portion includes two adjustment straps, a length adjustment structure, and a housing structure. The connecting end of each adjustment strap is connected to the head-mounted display portion. The adjustment end of each adjustment strap is provided with a rack structure. The length adjustment structure includes an operable element and a rotating gear. The rotating gear meshes with the rack structures on the two adjustment straps respectively, and the rotating gear can rotate under the control of the operable element, thereby driving the two rack structures to move synchronously in opposite directions, thereby adjusting the circumferential length of the headband structure formed by the two adjustment straps. A battery is housed inside the housing structure, and a cavity is provided on the inner sidewall of the housing structure. The rotating gear and the rack structure are both located in the cavity.

[0036] In this way, the head-mounted display device can be adapted to different head circumferences, improving wearing comfort. Furthermore, users can easily adjust the head-mounted support by operating the operable components. Additionally, by incorporating a rack and pinion structure on the adjustment band to engage with the rotating gear, the circumferential length of the headband structure can be adjusted. The entire adjustment structure is simple and compact. Moreover, by integrating the battery compartment with the length adjustment structure and the rack and pinion structure, the housing structure of the battery compartment is cleverly utilized to arrange these structures. Because the length adjustment structure and the rack and pinion structure are simple in structure and occupy little space, more space is provided for the battery. Attached Figure Description

[0037] Figure 1 This is a front view of the head-mounted display device provided in the embodiments of this disclosure;

[0038] Figure 2 This is a side view of the head-mounted display device provided in the embodiments of this disclosure;

[0039] Figure 3 This represents one of the axonometric views of the head-mounted display device provided in the embodiments of this disclosure;

[0040] Figure 4 This is a second axonometric view of the head-mounted display device provided in the embodiments of this disclosure;

[0041] Figure 5 This is one of the exploded views of the housing structure and length adjustment structure of the head-mounted display device provided in the embodiments of this disclosure;

[0042] Figure 6 This is the second exploded view showing the housing structure and length adjustment structure of the head-mounted display device provided in the embodiments of this disclosure;

[0043] Figure 7This diagram illustrates the internal wiring of the housing structure of the head-mounted display device provided in this embodiment.

[0044] Figure 8 This is a radial cross-sectional view of the ratchet in the head-mounted display device provided in the embodiments of this disclosure;

[0045] Figure 9 This is a cross-sectional view along the ratchet axis of the length adjustment structure and housing structure in the head-mounted display device provided in the embodiments of this disclosure;

[0046] Figure 10 This is one of the exploded views of the damping flip mechanism in the head-mounted display device provided in the embodiments of this disclosure;

[0047] Figure 11 This is the second exploded view of the damping flip mechanism in the head-mounted display device provided in the embodiments of this disclosure;

[0048] Figure 12 This is a schematic diagram showing the wiring of the damping flip mechanism in the head-mounted display device provided in the embodiments of this disclosure;

[0049] Figure 13 One of the schematic cross-sectional views of the damping flip mechanism in the head-mounted display device provided in the embodiments of this disclosure is shown.

[0050] Figure 14 This is a second axial cross-sectional view of the damping flip mechanism in the head-mounted display device provided in this embodiment of the present disclosure;

[0051] Figure 15 This is a schematic diagram illustrating the flipping of the head-mounted display portion relative to the head-mounted support portion in the head-mounted display device provided in the embodiments of this disclosure;

[0052] Figure 16 This is an exploded view of the head-mounted display device provided in the embodiments of this disclosure;

[0053] Figure 17 This is an exploded view of the face mask in the head-mounted display device provided in the embodiments of this disclosure. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0055] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0056] The features such as "parallel," "perpendicular," and "identical" used in the embodiments of this disclosure include features in the strict sense of "parallel," "perpendicular," and "identical," as well as cases where "approximately parallel," "approximately perpendicular," and "approximately identical" include certain tolerances. Taking into account the measurement and the tolerances associated with the measurement of a specific quantity (e.g., limitations of the measurement system), they represent the acceptable deviation range for a specific value as determined by a person skilled in the art. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of said value.

[0057] Furthermore, throughout this document, unless otherwise defined, the terms “substantially,” “essentially,” “approximately,” and “about” are used to describe and explain small variations. When used with an event or situation, these terms can cover situations where the event or situation occurs precisely or approximately. For example, when used with a numerical value, these terms can include a range of variation of the numerical value less than or equal to 10%, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%. The term “substantially coplanar” can refer to two surfaces arranged along the same plane within a micrometer range, for example, within 40 μm, 30 μm, 20 μm, 10 μm, or 1 μm.

[0058] like Figures 1 to 6 As shown, this disclosure provides a head-mounted display device, including a head-mounted display portion 100 and a head-mounted support portion 200 connected to the head-mounted display portion 100.

[0059] The headband support portion 200 includes two adjustment straps 210 and a length adjustment structure 220. The two adjustment straps 210 are joined to form a headband structure that can accommodate the user's head. Each adjustment strap 210 includes a connecting end 211 connected to the headband display portion 100 and an adjustment end 212 disposed opposite to the connecting end 211. Each adjustment strap 210 has a rack structure 213 at the adjustment end 212.

[0060] The length adjustment structure 220 includes an operable element 221 and a rotatable rotating gear 222 controlled by the operable element 221. The rotating gear 222 meshes with rack structures 213 on the two adjusting belts 210 respectively. When the rotating gear 222 rotates, it can drive the two rack structures 213 to move towards or away from each other to adjust the circumferential length of the headband structure.

[0061] The housing structure 300 has an internal cavity for housing a battery. The housing structure 300 includes a front end facing the space enclosed by the headband structure and a rear end facing away from the space enclosed by the headband structure. A recessed cavity 3012 is provided on the inner side wall of the front end. The recessed cavity 3012 is recessed on the side facing the space enclosed by the headband structure. The rotating gear 222 and the rack structure 213 are both located in the recessed cavity 3012.

[0062] In the above scheme, the headband support part 200 is designed to include two adjustment straps 210 and a length adjustment structure 220. The adjustment end 212 of the adjustment strap 210 is provided with a rack structure 213. The length adjustment structure 220 is designed to include the operable element 221 and the rotating gear 222. The rotating gear 222 meshes with the rack structures 213 on the two adjustment straps 210 respectively. The rotating gear 222 can rotate under the control of the operable element 221, thereby driving the two rack structures 213 to move towards or away from each other, thereby adjusting the circumferential length of the headband structure formed by the two adjustment straps 210. The housing structure 300 contains a battery, and a cavity 3012 is provided on the inner side wall of the housing structure 300. The rotating gear 222 and the rack structure 213 are both located in the cavity 3012.

[0063] In this way, the head-mounted display device can be adapted to different head sizes, improving wearing comfort. Furthermore, users can easily adjust the head-mounted support portion 200 by operating the operable component 221. Additionally, by setting a rack structure 213 on the adjustment band 210 to cooperate with the rotating gear 222, the circumferential length of the headband structure can be adjusted. The entire adjustment structure is relatively simple and compact. Moreover, by integrating the battery compartment with the length adjustment structure 220 and the rack structure 213, the housing structure 300 of the battery compartment is cleverly utilized to arrange the length adjustment structure 220 and the rack structure 213. Because the length adjustment structure 220 and the rack structure 213 have simple structures and occupy little space, more space is provided for the battery.

[0064] like Figure 5 and Figure 6 As shown, in some embodiments, the rack structure 213 can be configured to be arranged along the length extension direction of the adjusting belt 210. Figure 5 and Figure 6 As shown in the example, the teeth of the two rack structures 213 are arranged facing each other and are respectively meshed and connected to the radially opposite sides of the rotating gear 222. Rotating the rotating gear 222 in the forward direction causes the two rack structures 213 to move synchronously towards each other, thereby reducing the circumferential length of the headband structure; rotating the rotating gear 222 in the reverse direction causes the two rack structures 213 to move synchronously away from each other, thereby increasing the circumferential length of the headband structure. In this way, the headband support portion 200 can be adapted to different head circumferences.

[0065] In the above scheme, "positive" can refer to the first direction, for example... Figure 7 and Figure 8 The clockwise direction shown; the reverse direction can refer to a second direction opposite to the first direction, for example... Figure 7 and Figure 8 The direction shown is counterclockwise.

[0066] In some embodiments, the operable element 221 is a structural component that can be operated by a user to drive the rotating gear 222 to rotate. The operable element 221 can be any suitable structural component, such as a knob or a handle. Figure 5 As shown in the example, the operable component 221 is a knob 221', which can be connected to the rotating gear 222 for transmission. By rotating the knob 221', the circumferential length of the headband structure can be adjusted.

[0067] In some embodiments, such as Figures 5 to 9As shown, the length adjustment structure 220 may include a ratchet 223. The operable component 221 and the rotating gear 222 can be driven by the ratchet 223. Furthermore, by setting the ratchet 223, the one-way self-locking feature of the ratchet 223 can also realize the one-way self-locking function of the length adjustment structure 220, so that the user can directly drag the adjustment strap 210 to adjust the head circumference to be smaller, but cannot adjust the headband to be larger by dragging the adjustment strap 210.

[0068] Specifically, the length adjustment structure 220 may further include a bracket 224, the bracket 224 having a through hole 2241, and the inner circumferential side of the through hole 2241 having an internal tooth structure 2242. The internal tooth structure 2242 includes a plurality of teeth arranged uniformly in sequence along the circumference of the through hole 2241. The plurality of teeth in the internal tooth structure 2242 protrude toward the center of the through hole 2241 and are symmetrically distributed about the center of the through hole 2241.

[0069] The ratchet 223 includes a drive shaft 2231 and at least one elastic cantilever 2232 connected to the circumferential surface of the drive shaft 2231; the drive shaft 2231 passes through the through hole 2241 and is coaxially connected to the rotating gear 222; along the radial direction of the drive shaft 2231, the outer surface of the elastic cantilever 2232 away from the drive shaft 2231 is provided with ratchet teeth 2233, which mesh with the internal tooth structure 2242; the operable member 221 is provided with at least one set of driving protrusions 2211, one set of driving protrusions 2211 cooperates with a corresponding elastic cantilever 2232, and when the operable member 221 rotates in a first direction, the ratchet teeth 2233 slide relative to the internal tooth structure 2242 in the first direction; when the operable member 221 rotates in a second direction opposite to the first direction, the ratchet teeth 2233 disengage from the internal tooth structure 2242.

[0070] In the above scheme, taking clockwise as the first direction and counterclockwise as the second direction as an example, when the operable component 221 rotates clockwise, the driving protrusion 2211 cooperates with the elastic cantilever 2232. The driving protrusion 2211 can abut against and push the elastic cantilever 2232. The elastic cantilever 2232 is subjected to the torque of clockwise rotation. Since the elastic cantilever 2232 is a cantilever structure with elastic deformation capability, the ratchet 2233 will slide clockwise relative to the internal tooth structure 2242. The ratchet 223 and the operable component 221 rotate clockwise synchronously. The ratchet 223 synchronously drives the rotating gear 222 to rotate clockwise, thereby realizing the adjustment of the headband structure to reduce the head circumference. Furthermore, when the ratchet 2233 slides clockwise relative to the internal tooth structure 2242, it will emit a clicking sound, making the adjustment smooth and providing a better feel, thus improving the user's operating experience.

[0071] When the operable component 221 rotates counterclockwise, the drive protrusion 2211 engages with the elastic cantilever 2232, causing the ratchet 2233 to disengage from the internal tooth structure 2242, i.e., the two are in a non-meshing state. The ratchet 223 rotates counterclockwise with the operable component 221 and synchronously drives the rotating gear 222 to rotate counterclockwise, thereby realizing the head circumference expansion adjustment of the headband structure.

[0072] Thus, due to the structure of the ratchet 223, when the ratchet 2233 and the internal tooth structure 2242 are engaged, the ratchet 223 cannot rotate counterclockwise. Therefore, the length adjustment structure 220 has a one-way self-locking function. The user can directly drag the adjustment strap 210 to adjust the head circumference to a smaller size, but cannot adjust the head circumference to a larger size by dragging the adjustment strap 210. To increase the head circumference, it can only be achieved by controlling the operable component 221. This ensures that when the operable component 221 is not under force, but only when the headband structure is subjected to a force not applied by the user, the elastic cantilever 2232 engages with the internal tooth structure 2242, preventing the operable component 221 from rotating. This prevents reverse rotation and avoids changes in the circumferential length of the headband structure during wear, thus reducing wearing comfort.

[0073] It should be noted that the forces exerted on the headband structure by non-human subjective force mainly refer to forces exerted by non-human subjective force during the wearing process, such as the weight of the device and the force exerted by the head, rather than forces exerted by human forceful pulling. Human forceful pulling can easily cause the internal tooth structure 2242 to detach from the elastic cantilever 2232 and the transmission shaft 2231, resulting in damage to the length adjustment structure 220.

[0074] Furthermore, in some exemplary embodiments, such as Figure 8 As shown, the elastic cantilever 2232 and the circumferential surface of the transmission shaft 2231 enclose a first space E; the elastic cantilever 2232 includes a support arm portion 22321, a bending arm portion 22322, and a free end portion 22323 connected in sequence. The support arm portion 22321 is connected to the transmission shaft 2231. The bending arm portion 22322 surrounds the transmission shaft 2231 along its circumferential portion. The free end portion 22323 protrudes relative to the bending arm portion 22322 towards the side where the transmission shaft 2231 is located, and a first inclined push surface 22324 is provided on the free end portion 22323; a set of driving protrusions 2211 are disposed in the corresponding first space E, and a second inclined push surface 22110 that cooperates with the first inclined push surface 22324 is provided on the driving protrusions 2211.

[0075] When the operable member 221 rotates along the first direction, the driving protrusion 2211 abuts against and pushes the support arm, so that the ratchet 2233 slides relative to the internal tooth structure 2242 in the first direction; when the operable member 221 rotates along the second direction, the second inclined push surface 22110 abuts against and pushes the first inclined push surface 22324, so that the bent arm 22322 bends toward the drive shaft 2231, and the ratchet 2233 disengages from the internal tooth structure 2242.

[0076] In the above scheme, the specific structure of the elastic cantilever 2232 is illustrated by way of example. The free end 22323 is constructed on the cantilever structure, and a first inclined push surface 22324 is provided on the free end 22323. A second inclined push surface 22110 is constructed on the drive protrusion 2211. When the operable member 221 is rotated counterclockwise, the first inclined push surface 22324 and the second inclined push surface 22110 cooperate to apply a force to the bent arm portion 22322, so that the bent arm portion 22322 bends toward the transmission shaft 2231, thereby achieving the purpose of disengaging the ratchet 2233 from the internal tooth structure 2242.

[0077] It should be noted that the first inclined push surface 22324 and the second inclined push surface 22110 refer to inclined surfaces. In this application, the first inclined push surface 22324 and the second inclined push surface 22110 can be surfaces that are inclined at a certain angle relative to the diameter direction of the transmission shaft 2231.

[0078] like Figure 8As shown, the inclination angles of the first inclined push surface 22324 and the second inclined push surface 22110 can be the same, and the two always remain in contact. When the operable member 221 is rotated counterclockwise, the second inclined push surface 22110 applies a force to the first inclined push surface 22324, causing the first inclined push surface 22324 to slide along the second inclined push surface 22110 under the pushing action of the second inclined push surface 22110, thereby pulling the bent arm 22322 connected to the free end 22323, causing the bent arm 22322 to bend toward the drive shaft 2231, and the ratchet 2233 disengages from the internal tooth structure 2242.

[0079] In some embodiments, such as Figure 8 As shown, the driving protrusion 2211 may include a first protrusion 22111 and a second protrusion 22112 spaced apart. The first protrusion 22111 is disposed near the support arm portion 22321, and the second protrusion 22112 is disposed near the free end portion 22323. The first protrusion 22111 is used to abut against and push the support arm portion 22321 when the operable member 221 rotates clockwise. The second protrusion 22112 is provided with a second inclined pushing surface 22110. The second protrusion 22112 is used to abut against and push the support arm portion 22321 when the operable member 221 rotates counterclockwise, so that the ratchet 2233 disengages from the internal tooth structure 2242.

[0080] like Figure 8 As shown, in some embodiments, the free end 22323 protrudes relative to the curved arm 22322 in a hook shape, the second protrusion 22112 is located inside the free end 22323, and when the operable member 221 is not under force, the first inclined push surface 22324 of the free end 22323 partially contacts the second inclined push surface 22110 of the second protrusion 22112, which can prevent the second protrusion 22112 from disengaging from the gap between the free end 22323 and the drive shaft 2231.

[0081] also, Figure 8 The diagram shows that the ratchet 223 is provided with two elastic cantilever arms 2232. When there are two elastic cantilever arms 2232, there are two sets of drive protrusions 2211, and the two elastic cantilever arms 2232 have the same structure. The two sets of drive protrusions 2211 can also have the same structure. However, this is not a limitation.

[0082] Furthermore, the operable component 221 may also be provided with a central shaft 2213, and the transmission shaft 2231 may be a hollow shaft. The central shaft 2213 may be installed inside the transmission shaft 2231, and the transmission shaft 2231, the operable component 221, and the rotating gear 222 are coaxially connected. The transmission shaft 2231 and the operable component 221, as well as the rotating gear 222 and the transmission shaft 2231, may be fitted together by a concave-convex structure to achieve synchronous rotation.

[0083] For example, see the above. Figure 5 and Figure 6 As shown, in some embodiments, a square groove 2221 may be provided on the rotating gear 222, and a square protrusion 2234 may be provided on the transmission shaft 2231. The square protrusion 2234 is inserted into the square groove 2221 to achieve synchronous rotation of the rotating gear 222 and the ratchet 223. However, this is not a limitation.

[0084] Furthermore, in some exemplary embodiments, such as Figure 5 , Figure 7 and Figure 8 As shown, the bracket 224 is also provided with an annular buckle 225, the annular buckle 225 having a radial opening along the through hole 2241 and a groove 2250 extending circumferentially along the through hole 2241; the operable member 221 is provided with a buckle engagement structure 2215, the buckle engagement structure 2215 engaging into the groove 2250, and the buckle engagement structure 2215 being rotatable relative to the groove 2250 about the axis of the through hole 2241.

[0085] By adopting the above solution, the operable part 221 can be installed on the bracket 224 through the mutual cooperation of the annular buckle 225 and the buckle engagement structure 2215, and the operable part 221 can be rotated. Furthermore, by using the annular buckle 225 and the buckle engagement structure 2215, the use of fasteners such as screws can be reduced, thereby reducing material costs.

[0086] In some embodiments, such as Figures 1 to 6 As shown, the housing structure 300 has an insertion hole 310 on its side wall, the rotating gear 222 is located in the receiving cavity, the adjusting belt 210 passes through the insertion hole 310 so that the rack structure 213 is at least partially located in the receiving cavity, and the operable member 221 is exposed to the outside of the housing structure 300.

[0087] By adopting the above solution, the moving parts in the length adjustment structure 220 are housed in the housing structure 300, which can protect the moving parts and ensure the smooth movement of the length adjustment structure 220 and the rack structure 213.

[0088] In some embodiments, the housing structure 300 may include a front end facing the space enclosed by the headband structure and a rear end facing away from the space enclosed by the headband structure. The housing structure 300 may include a front shell 301, a rear shell 302, and a middle shell 303 that interlock with each other. The bracket 224 may be part of the housing structure 300. For example, the rear shell 302 may be reused as the bracket 224. However, this is not a limitation.

[0089] Furthermore, the socket 310 can be configured to be in the same structure as the length adjustment structure 220 of the adjustment band 210, wherein the width of the socket 310 is slightly larger than the width of the adjustment band 210, thereby limiting the adjustment band 210 in the width direction.

[0090] In some embodiments, such as Figure 5 As shown, the edge of the middle shell 303 is provided with a first notch 3031, and the edge of the front shell 301 is provided with a second notch 3011. The first notch 3031 and the second notch 3011 cooperate to form the insertion hole 310. However, this is not a limitation.

[0091] In some embodiments, at least one guide groove 400 is provided on the inner sidewall of the housing structure 300. The guide groove 400 extends along the movement trajectory of the rack structure 213, and the rack structure 213 is disposed within the corresponding guide groove 400. By employing the above scheme, the guide groove 400 can guide and limit the movement of the rack structure 213.

[0092] In some embodiments, such as Figure 6 As shown, the guide groove 400 can be disposed on the bracket 224, that is, on the rear shell 302. However, it is not limited thereto.

[0093] In some embodiments, such as Figure 6 As shown, at least one stop 500 is provided on the inner sidewall of the housing structure 300. The stop 500 is configured to cooperate with the rack structure 213 to limit the movement stroke of the rack structure 213.

[0094] In some embodiments, the housing structure 300 is a battery compartment that internally houses a battery. The housing structure 300 is configured as an arc-shaped housing structure 300 that adapts to the curvature of the headband structure. The housing structure 300 is also provided with a pillow elastic support member 600 on the inner side of the space enclosed by the headband structure.

[0095] The elastic support member 600 can be made of any suitable structure, such as elastic sponge, to contact and support the back of the user's head, thereby improving wearing comfort. The elastic support member 600 can be fixed to the shell structure 300 by means of Velcro, buckles, or screws, so as to facilitate disassembly and replacement.

[0096] like Figure 6 As shown, in some embodiments, a buffer foam 304 may be provided between the middle shell 303 and the front shell 301 to reduce rigid contact between the two and reduce the risk of component wear and paint peeling.

[0097] In some embodiments, the operable member 221 is located at the rear end, and the pillow elastic support member 600 is located at the front end; wherein, as Figure 5 and Figure 6 As shown, the inner sidewall of the front end is provided with the cavity 3012. For example, taking the shell structure 300 as an example, which includes a front shell 301, a rear shell 302 and a middle shell 303, the cavity 3012 is provided on the front shell 301.

[0098] The above solution, by recessing the inner sidewall of the front end towards the location of the pillow elastic support 600, allocates part of the space of the pillow elastic support 600 to the rotating gear 222 and the rack structure 213. This reduces the space occupied by the rotating gear 222 and the rack structure 213 within the housing structure 300, increases battery placement space, improves the overall battery life, and does not compromise the appearance or require increasing the size of the housing structure 300. Furthermore, the recess 3012 also serves to constrain the maximum range of motion of the rack structure 213.

[0099] In some embodiments, such as Figure 7 As shown, the power lines or flexible circuit boards 10 in the housing structure 300 can be arranged in an S-shaped routing manner. This can ensure the smooth movement of the power lines or flexible circuit boards 10 when the rack structure 213 moves, and prevent the power lines or flexible circuit boards 10 from bending under force, thus preventing the rack structure 213 from jamming.

[0100] In some embodiments, such as Figure 4 and Figure 16As shown, the head-mounted support portion 200 may further include a top strap 250 for supporting the user's head. For example, the top strap 250 may be connected between the two adjustment straps 210, or between the head-mounted display portion 100 and the housing structure 300. When worn by the user, the top strap 250 is positioned on top of the user's head, distributing the pressure on the face and back of the head when the user wears the head-mounted display device. Exemplarily, the top strap 250 may be detachably connected to the adjustment straps 210, the head-mounted display portion 100, or the housing structure 300 to facilitate removal and replacement of the top strap 250.

[0101] Furthermore, in some embodiments, the head-mounted display portion 100 serves as the main structure of the head-mounted display device, and may include a motherboard, camera, heat dissipation module, binocular optical engine, head-mounted display housing, etc. Other essential components of the head-mounted display portion 100 are readily understood by those skilled in the art and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0102] like Figures 1 to 4 As shown, in some embodiments, the head-mounted display portion 100 may include at least two spatial positioning cameras 110, which may be directly exposed on the head-mounted display housing 120. The at least two spatial positioning cameras 110 can achieve precise spatial positioning by fusing information from different cameras.

[0103] The head-mounted display 100 may further include a see-through camera 130, which can capture external images in real time, thereby capturing external information, enhancing the user's sense of security, and enabling interaction with the outside world. The see-through camera 130 may be equipped with a light-transmitting decorative lens, and it also needs to be coated with an anti-reflective coating and a hardening coating to ensure the clarity of the image.

[0104] By adopting the above solution, the head-mounted display device provided in this embodiment of the disclosure has functions such as spatial positioning and full-color perspective, and can realize an interactive and integrated experience with the outside world.

[0105] In some embodiments, the head-mounted display housing 120 may be provided with an air inlet 140 and an air outlet 150, which may be located on opposite sides of the head-mounted display housing 120. For example, when a user is wearing the head-mounted display device, the air outlet 150 may be located directly above the head-mounted display housing 120, and the air inlet 140 may be located directly below the head-mounted display housing 120.

[0106] In some embodiments, the area ratio of the air inlet 140 to the air outlet 150 can be in the range of 1.2 to 1.5, and the area of ​​the air outlet 150 is preferably greater than 100 mm². 2 Thus, the head-mounted display unit 100 has an extra-large air inlet / outlet 150, which provides a more efficient heat dissipation effect.

[0107] Furthermore, in some embodiments, the head-mounted display device further includes a damped flip structure, through which the head-mounted display portion 100 can be movably connected to the head-mounted support portion 200, such as... Figure 15 As shown, the damping flipping mechanism can control the head-mounted display portion 100 to flip relative to the head-mounted support portion 200 within a specific range and to hover at any position, thereby improving wearing portability and comfort.

[0108] The specific structural form of the damping flipping mechanism can be varied.

[0109] In some embodiments, such as Figures 10 to 13 As shown, one of the head-mounted display portion 100 and the head-mounted support portion 200 is provided with a first shaft hole 710; the other of the head-mounted display portion 100 and the head-mounted support portion 200 is provided with a second shaft hole 720.

[0110] The damping flipping mechanism includes a damping shaft structure, which includes a shaft 730, a shaft end cap 740, and a damping assembly 750. The first axial end of the shaft 730 is provided with a stop skirt 732. The second axial end of the shaft 730 passes through the second shaft hole 720 and the first shaft hole 710 in sequence and is connected to the shaft end cap 740. The stop skirt 732 and the shaft end cap 740 cooperate with each other to limit the axial movement of the shaft 730. The damping assembly 750 is sleeved on the shaft 730.

[0111] In the above solution, by utilizing the damping pivot structure, the head-mounted display portion 100 can be flipped relative to the head-mounted support portion 200, while the damping friction can be used to limit the flipping angle.

[0112] In some embodiments, such as Figures 11 to 13As shown, one of the head-mounted display portion 100 and the head-mounted support portion 200 is provided with a post 760, and the first shaft hole 710 is provided on the post 760; the damping assembly 750 includes a damping friction plate 751 and a lubricating pad 752. The damping friction plate 751 is sleeved on the rotating shaft 730 and located between the post 760 and the rotating shaft end cap 740. The lubricating pad 752 is provided between the damping friction plate 751 and the rotating shaft end cap 740. The damping friction plate 751 is configured to generate a frictional damping force with at least one of the adjacent lubricating pad 752 and the post 760.

[0113] Thus, the damping reversal effect is achieved by utilizing the frictional damping force generated between the damping friction plate 751 and at least one of the adjacent lubrication pad 752 and the end face of the post 760.

[0114] The material of the lubricating pad 752 may include, but is not limited to, POM (polyoxymethylene). The lubricating pad 752 can reduce friction and reduce friction between parts.

[0115] In some embodiments, such as Figures 11 to 14 As shown, the damping shaft structure also includes an anti-loosening screw 770. The shaft 730 has at least one first screw hole 731 on its axial second end face, and the shaft end cover 740 has at least one second screw hole 741. The anti-loosening screw 770 is screwed into the first screw hole 731 and the second screw hole 741.

[0116] By adopting the above solution, the anti-loosening screw 770 can be used to adjust the damping force. The damping force is easy to adjust and has an anti-loosening function to ensure that the damping force remains unchanged.

[0117] In some embodiments, the stop skirt 732 is further provided with a foolproof structure, and the periphery of the second shaft hole 720 is provided with a foolproof adapter structure that mates with and connects to the foolproof structure. For example, the foolproof structure and the foolproof adapter structure can be mutually mating concave-convex structures. However, it is not limited to this.

[0118] In some embodiments, the shaft end cap 740 is further provided with a limiting structure, and the periphery of the first shaft hole 710 is further provided with a limiting adapter structure. The limiting structure and the limiting adapter structure cooperate with each other to limit the rotation angle of the shaft 730. For example, please refer to Figure 10 As shown, the limiting structure can be a first limiting post 761 disposed around the first shaft hole 710, and the limiting adapter structure can be a second limiting post 762 disposed on the edge of the rotating shaft end cover 740. However, it is not limited to these.

[0119] Furthermore, in other embodiments, such as Figure 14 As shown, the damping component 750 may include an elastic damping ring 755, which is sleeved on the rotating shaft 730. The elastic damping ring 755 is configured to generate a frictional damping force with the first shaft hole 710.

[0120] In the above scheme, the interference fit between the elastic damping ring 755 and the inner wall of the first shaft hole 710 generates radial compressive force, producing a damping effect. The damping force of the rotating shaft 730 can be adjusted by replacing the elastic damping ring 755 with one of different wire diameters.

[0121] The elastic damping ring 755 can be made of elastic materials such as rubber. Using the elastic damping ring 755 can reduce the thickness of the entire damping shaft structure along the axial direction of the shaft 730, saving the space occupied by components such as gaskets.

[0122] In some embodiments, such as Figure 11 and Figure 12 As shown, both the rotating shaft 730 and the rotating shaft end cap 740 are provided with an axial through hole 733 at their centers, through which the power lines, signal lines, and other wiring 20 of the head-mounted display part 100 can pass.

[0123] Furthermore, in some embodiments, such as Figure 16 and Figure 17 As shown, the head-mounted display portion 100 may further include a face mask 800 for conforming to the user's face. The face mask 800 includes: a face mask bracket 810, a fitting bracket 820, a facial elastic fitting member 830, and a light shield 840.

[0124] The face mask support 810 has a hollow frame structure. The face mask support 810 includes a left eye portion 811 and a right eye portion 812. The frame portions corresponding to the left eye portion 811 and the right eye portion 812 are constructed with a hollow structure 813. The hollow structure 813 is constructed so that the frame portions corresponding to the left eye portion 811 and the right eye portion 812 can be elastically deformed when subjected to external force. The face mask support 810 is also provided with a nose pad structure 814. The face mask support 810 includes a side that fits the user's face when in use.

[0125] The fitting bracket 820 is detachably connected to the fitting side of the face mask bracket 810; the facial elastic fitting 830 is detachably connected to the side of the fitting bracket 820 facing the user's face; and the light shield 840 covers the face mask bracket 810.

[0126] In the above solution, because the face mask bracket 810 is elastically deformable, the face mask 800 can be adjusted within a certain range to fit different face shapes. The material of the elastic face fitting component 830 may include, but is not limited to, elastic sponge. The elastic face fitting component 830 is detachably connected to the fitting component bracket 820 and can be replaced with different sizes to customize a more fitted face mask 800 according to different face shapes.

[0127] The light shield 840 can be made of light-blocking fabric, and the face mask 800 has good breathability, excellent light-blocking properties, and is comfortable to wear, and can be adapted to different users' face shapes.

[0128] In some embodiments, the face mask bracket 810 can be detachably connected to the head-mounted display housing 120 of the head-mounted display portion 100 via magnets and / or snap-fit ​​structures, ensuring the stability of the face mask 800 when worn. However, the detachable connection method between the face mask bracket 810 and the head-mounted display housing 120 is not limited to this.

[0129] The following points need to be explained:

[0130] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0131] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present disclosure, i.e., these drawings are not drawn to actual scale. It will be understood that when an element such as a layer, film, region or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element or there may be intermediate elements.

[0132] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0133] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. The scope of protection of this disclosure shall be determined by the scope of the claims.

Claims

1. A head-mounted display device, characterized in that, Includes a head-mounted display portion and a head-mounted support portion connected to the head-mounted display portion; The headband support component includes: Two adjustment straps are provided, which together form a headband structure that can accommodate the user's head. Each adjustment strap includes a connecting end connected to the head-mounted display portion and an adjustment end disposed opposite to the connecting end. Each adjustment strap has a rack structure at the adjustment end. The length adjustment structure includes an operable component and a rotating gear that can be rotated under the control of the operable component. The rotating gear meshes with the rack structures on the two adjustment belts respectively. When the rotating gear rotates, it can drive the two rack structures to move towards or away from each other to adjust the circumferential length of the head ring structure. The housing structure has an internal cavity for housing a battery. The housing structure includes a front end facing the space enclosed by the headband structure and a rear end facing away from the space enclosed by the headband structure. The inner wall of the front end has a recessed cavity, which is recessed on the side facing the space enclosed by the headband structure. The rotating gear and the rack structure are both located in the recessed cavity.

2. The head-mounted display device according to claim 1, characterized in that, The length adjustment structure also includes a bracket, which has a through hole and an internal tooth structure on the inner circumference of the through hole; The length adjustment structure further includes a ratchet, which includes a drive shaft and at least one elastic cantilever connected to the circumferential surface of the drive shaft; the drive shaft passes through the through hole and is coaxially connected to the rotating gear; along the radial direction of the drive shaft, the outer side of the elastic cantilever away from the drive shaft is provided with ratchet teeth, which mesh with the internal tooth structure; The operable component is provided with at least one set of driving protrusions, and one set of driving protrusions cooperates with a corresponding elastic cantilever. When the operable component rotates in a first direction, the ratchet slides relative to the internal tooth structure in the first direction. When the operable component rotates in a second direction opposite to the first direction, the ratchet disengages from the internal tooth structure.

3. The head-mounted display device according to claim 2, characterized in that, The elastic cantilever and the circumferential surface of the drive shaft enclose a first space; the elastic cantilever includes a support arm, a bending arm and a free end connected in sequence, the support arm is connected to the drive shaft, the bending arm surrounds the drive shaft along the circumferential part of the drive shaft, the free end protrudes relative to the bending arm toward the side where the drive shaft is located, and the free end is provided with a first inclined pushing surface; A set of the driving protrusions is disposed in the corresponding first space, and the driving protrusions are provided with a second inclined pushing surface that mates with the first inclined pushing surface; wherein, When the operable component rotates along the first direction, the drive protrusion abuts against and pushes the support arm, so that the ratchet slides relative to the internal tooth structure toward the first direction. When the operable component rotates in the second direction, the second inclined push surface abuts against and pushes the first inclined push surface, so that the bent arm bends toward the direction of the drive shaft, and the ratchet disengages from the internal tooth structure.

4. The head-mounted display device according to claim 2, characterized in that, The bracket is also provided with an annular buckle, which has a radial opening along the through hole and a slot that extends circumferentially along the through hole; the operable component is provided with a buckle engagement structure, which engages with the slot and is rotatable relative to the slot about the axis of the through hole.

5. The head-mounted display device according to claim 1, characterized in that, The housing structure has an insertion hole on its side wall, the rotating gear is located in the receiving cavity, the adjusting belt passes through the insertion hole so that the rack structure is at least partially located in the receiving cavity, and the operable element is exposed to the outside of the housing structure.

6. The head-mounted display device according to claim 1, characterized in that, At least one guide groove is provided on the inner wall of the shell structure. The guide groove extends along the movement trajectory of the rack structure, and the rack structure is located in the corresponding guide groove.

7. The head-mounted display device according to claim 1, characterized in that, At least one stop is provided on the inner wall of the housing structure. The stop is configured to cooperate with the rack structure to limit the travel of the rack structure.

8. The head-mounted display device according to claim 1, characterized in that, The operable component is located at the rear end, and the shell structure is constructed as an arc-shaped shell structure adapted to the curvature of the headband structure. The front end is also provided with a occipital elastic support.

9. The head-mounted display device according to claim 1, characterized in that, One of the head-mounted display portion and the head-mounted support portion is provided with a first axial hole; the other of the head-mounted display portion and the head-mounted support portion is provided with a second axial hole; The head-mounted display device further includes a damping pivot structure, which includes a pivot, a pivot end cap, and a damping assembly. The pivot has a first axial end with a stop skirt, and the pivot has a second axial end that passes through the second shaft hole and the first shaft hole in sequence and is connected to the pivot end cap. The stop skirt and the pivot end cap cooperate with each other to limit the axial movement of the pivot. The damping assembly is sleeved on the pivot.

10. The head-mounted display device according to claim 9, characterized in that, One of the head-mounted display portion and the head-mounted support portion is provided with a post, and the first shaft hole is provided on the post; The damping assembly includes a damping friction plate and a lubricating pad. The damping friction plate is sleeved on the rotating shaft and located between the orifice and the rotating shaft end cap. The lubricating pad is located between the damping friction plate and the rotating shaft end cap. The damping friction plate is configured to generate a frictional damping force with at least one of the adjacent lubricating pad and the orifice. Alternatively, the damping assembly includes an elastic damping ring and a lubricating pad, the elastic damping ring being sleeved on the rotating shaft, and the elastic damping ring being configured to generate a frictional damping force with the first shaft hole.

11. The head-mounted display device according to claim 9, characterized in that, The damping shaft structure also includes an anti-loosening screw. The shaft has at least one first screw hole on its axial second end face and at least one second screw hole on its end cap. The anti-loosening screw is screwed into the first screw hole and the second screw hole.

12. The head-mounted display device according to claim 9, characterized in that, The stop skirt is also provided with a foolproof structure, and the periphery of the second shaft hole is provided with a foolproof adapter structure that cooperates with the foolproof structure; the shaft end cover is also provided with a limiting structure, and the periphery of the first shaft hole is also provided with a limiting adapter structure. The limiting structure and the limiting adapter structure cooperate with each other to limit the rotation angle of the shaft.

13. The head-mounted display device according to claim 1, characterized in that, The head-mounted display includes a face mask for conforming to the user's face, the face mask comprising: The face mask holder has a hollow frame structure. The face mask holder includes a left eye section and a right eye section. The frame portions corresponding to the left eye section and the right eye section are constructed with a hollow structure. The hollow structure is constructed so that the frame portions corresponding to the left eye section and the right eye section can be elastically deformed when subjected to external force. The face mask holder also has a nose pad structure. The face mask holder includes a side that fits the user's face when in use. A fitting bracket is detachably connected to the fitting side of the face mask bracket; A flexible facial fit is detachably attached to the side of the fit holder facing the user's face. A sunshade covers the outside of the face mask support.

Images