Headset assembly

Abstract

The application discloses a head-mounted assembly which comprises a front shell, two middle shells and a rear shell, the front shell comprises a main body part and two mounting parts at two ends of the main body part, the main body part is used for mounting a display device; the middle shell has a middle front end and a middle rear end along an extension direction, and one middle front end is detachably connected with one mounting part; the rear shell comprises a body part and two connecting parts at two ends of the body part; one connecting part is detachably connected with one middle rear end, the front shell, the two middle shells and the rear shell jointly enclose an annular space for wearing, and the main body part and the body part are opposite to each other. The technical scheme of the application provides a three-section design to realize autonomous disassembly and assembly of the head-mounted assembly, which is convenient for storage and wearing.

Description

Headset components Technical Field

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

[0002] Most head-mounted display devices on the market use head-mounted components for wearability, but currently most head-mounted VR products are all-in-one, meaning that users cannot disassemble or reassemble them after they leave the factory, which increases the space required for packaging and storage. Summary of the Invention

[0003] The main objective of this invention is to provide a headgear assembly that features a clever three-section design that allows for easy disassembly and assembly, making it convenient for both storage and user comfort.

[0004] To achieve the above objectives, the present invention provides a head-mounted assembly comprising:

[0005] The front housing includes a main body and two mounting portions located at both ends of the main body, the main body being used to mount a display device;

[0006] Two intermediate shells, each having a front and a rear end along its extension direction, one of the front ends being detachably connected to one of the mounting portions; and

[0007] The rear shell includes a main body and two connecting portions located at both ends of the main body; one of the connecting portions is detachably connected to a middle and rear end; the front shell, the two middle shells and the rear shell together enclose an annular space for wearing; the main body and the main body are opposite to each other.

[0008] Optionally, the middle front end is magnetically connected to the mounting part.

[0009] Optionally, the middle and rear ends are magnetically connected to the connecting part.

[0010] Optionally, the head-mounted assembly includes an electromagnetic module, which is respectively installed on the front shell, the middle shell, and the rear shell.

[0011] Optionally, the head-mounted assembly includes an electromagnetic module and a permanent magnet module. The electromagnetic module includes a first electromagnetic module and a second electromagnetic module. The first electromagnetic module is installed on the front shell, the second electromagnetic module is installed on the rear shell, and the permanent magnet module is installed on the middle shell.

[0012] Optionally, the head-mounted assembly further includes a drive motor, the mounting portion is provided with a receiving cavity, the drive motor is placed in the receiving cavity, the first electromagnetic module is movably placed in the receiving cavity, and the drive motor is used to drive the movement of the first electromagnetic module.

[0013] Optionally, the first electromagnetic module is slidably engaged with the cavity wall of the receiving cavity, and the headgear assembly further includes a mounting plate that is slidably engaged with the cavity wall of the receiving cavity. The first electromagnetic module is mounted on the mounting plate, and the drive motor is threadedly connected to the mounting plate. The drive motor drives the mounting plate to move, thereby moving the first electromagnetic module through the mounting plate.

[0014] Optionally, the headgear assembly further includes an elastic element, one end of which is connected to the mounting plate, and the other end of which is connected to the first electromagnetic module.

[0015] Optionally, the hardness value of the middle shell is greater than or equal to a predetermined threshold; or the front shell, the middle shell, and the rear shell are all made of the same material.

[0016] Optionally, the head-mounted assembly further includes a pressure sensor disposed on the rear shell. The detection part of the pressure sensor is located in the annular space. The pressure sensor is electrically connected to the drive motor. The pressure sensor is used to control the opening / closing of the drive motor according to the wearing pressure threshold and the initial pressure threshold.

[0017] When the pressure value detected by the pressure sensor exceeds the wearing pressure threshold, the drive motor drives the mounting plate to move forward in the direction toward the first electromagnetic module;

[0018] When the pressure value detected by the pressure sensor is less than the wearing pressure threshold but greater than the initial pressure threshold, the drive motor will not start.

[0019] When the pressure value of the pressure sensor is less than the initial pressure threshold, the drive motor drives the mounting plate to move backward in a direction away from the first electromagnetic module back to the initial position.

[0020] Optionally, the first electromagnetic module includes two electromagnet groups and a first flexible circuit board electrically connected to the two electromagnet groups. The first flexible circuit board is placed in the main body, and one of the electromagnet groups is located in one of the receiving cavities. The first flexible circuit board is provided with a control element to control the magnetic strength of the electromagnet groups.

[0021] Optionally, the middle shell includes a middle box body and a middle box cover that cover each other to form an installation cavity. After the middle shell is disassembled from the front shell and the rear shell, the end surfaces located at the front end and the rear end of the middle shell are visible. The permanent magnet module is placed in the installation cavity. The permanent magnet module includes two permanent magnets and a connecting line that electrically connects the two permanent magnets. The two permanent magnets are respectively disposed on the end surfaces.

[0022] Optionally, the end surface is provided with a plurality of mounting grooves, the permanent magnet is provided with a plurality of sub-magnets, one of the sub-magnets is embedded in one of the mounting grooves and exposed outside the mounting groove.

[0023] Optionally, the second electromagnetic module includes two electromagnetic components and a second flexible circuit board electrically connected to the two electromagnetic components. The connecting portion is provided with a clearance groove. One of the electromagnetic components is disposed in one of the connecting portions and exposed from the clearance groove. The second flexible circuit board is placed in the body portion.

[0024] The technical solution of this invention employs a front shell, two middle shells, and a rear shell. The front shell includes a main body and two mounting portions located at both ends of the main body, the main body being used to mount the display device. Each middle shell has a front center and a rear center along its extension direction, one of the front centers being detachably connected to one of the mounting portions. The rear shell includes a main body and two connecting portions located at both ends of the main body, one of the connecting portions being detachably connected to one of the rear centers. During assembly, the front shell, two middle shells, and rear shell together form an annular space for wearing. The main body and the main body are opposite each other. Thus, when storage is required, the front shell, middle shell, and rear shell can be disassembled and stored in three sections, requiring less packaging and storage space compared to existing integrated devices. When the head-mounted display device is needed, the front shell, middle shell, and rear shell are connected to form an annular space, with the user's head positioned within the annular space for wearing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 is a structural schematic diagram of an embodiment of the head-mounted display device of the present invention;

[0027] Figure 2 is a structural schematic diagram of one embodiment of the head-mounted display device in Figure 1 during disassembly;

[0028] Figure 3 is an exploded view of the head-mounted display device in Figure 1;

[0029] Figure 4 is a structural schematic diagram of an embodiment of the front shell in Figure 1;

[0030] Figure 5 is an enlarged structural schematic diagram of the mounting section in Figure 4;

[0031] Figure 6 is a structural schematic diagram of an embodiment of the first electromagnetic module in Figure 5;

[0032] Figure 7 is a structural schematic diagram of an embodiment of the middle shell in Figure 1;

[0033] Figure 8 is an exploded view of Figure 7;

[0034] Figure 9 is a structural schematic diagram of an embodiment of the rear shell in Figure 1;

[0035] Figure 10 is an exploded view of Figure 9;

[0036] Figure 11 is a structural schematic diagram of an embodiment of the head-mounted display device when worn;

[0037] Figure 12 is a schematic diagram of the cross-sectional structure in Figure 11;

[0038] Figure 13 is a schematic diagram of the structure at point A in Figure 12;

[0039] Figure 14 is a structural schematic diagram of another embodiment of the head-mounted display device when worn;

[0040] Figure 15 is a schematic diagram of the cross-sectional structure in Figure 14;

[0041] Figure 16 is a schematic diagram of the structure at point B in Figure 15.

[0042] Explanation of icon numbers:

[0043]

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0046] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0047] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0048] Head-mounted display devices typically use head-mounted components for wearability. Existing head-mounted components include a front shell and a rear strap. The front shell is used to install the display device, and the rear strap is for the user to wear. However, once the product leaves the factory, it cannot be disassembled and reassembled by the user at will, resulting in increased packaging and storage space and making it impossible to achieve independent disassembly and replacement.

[0049] This invention proposes a headband component that features a clever three-section design that allows for easy disassembly and assembly, making it convenient for both storage and user comfort.

[0050] Referring to Figures 1 to 16, in one embodiment of the present invention, the head-mounted assembly 200 includes a front shell 220, two middle shells 230, and a rear shell 240. As shown in Figures 1 and 10, the front shell 220 includes a main body portion 221 and two mounting portions 222 located at both ends of the main body portion 221. The main body portion 221 is used to mount the display device 300. Each of the middle shells 230 has a front end portion 231 and a rear end portion 232 along the extending direction. One front end portion 231 is detachably connected to one mounting portion 222. The rear shell 240 includes a body portion 241 and two connecting portions 242 located at both ends of the body portion 241. One connecting portion 242 is detachably connected to one rear end portion 232. The front shell 220, the two middle shells 230, and the rear shell 240 together enclose an annular space 210 for wearing. The main body portion 221 and the body portion 241 are opposite to each other.

[0051] Referring to Figures 11 and 12, when worn, the user's eyes face the display device 300 of the front shell 220, the two middle shells 230 are located at the user's ears, and the rear shell 240 is located at the back of the user's head. That is, the user's head is located within the annular space 210 of the head-mounted assembly 200. The front shell 220, middle shell 230, and rear shell 240 are detachable components, which makes it convenient for storage and for the user to wear. Moreover, the key components of the device can be disassembled, which also makes it convenient for cleaning and maintenance, keeping the device hygienic and comfortable.

[0052] In one embodiment, the detachable connection is a snap-fit ​​connection, such as the mounting part 222 and the connecting part 242 both having socket cavities. During installation, the front end 231 and the rear end 232 of the two middle shells 230 are respectively inserted into the two socket cavities, and the lines are connected through terminals.

[0053] In another embodiment, the detachable connection is a magnetic connection, such as the front end 231 being magnetically connected to the mounting part 222; or the rear end 232 being magnetically connected to the connecting part 242; or the front end 231 being magnetically connected to the mounting part 222 and the rear end 232 being magnetically connected to the connecting part 242.

[0054] When storing, the front shell 220, the two middle shells 230, and the rear shell 240 are separated into three individual parts, resulting in a small space required for packaging and storage of the headgear component 200. Specifically, the hardness value of the middle shell 230 is greater than or equal to a predetermined threshold. It should be noted that the predetermined threshold is used to distinguish it from traditional strap-type middle shells. The predetermined threshold can be a value of one of Brinell hardness, Rockwell hardness, and Vickers hardness, which can be simply understood as the "middle shell" having a certain degree of hardness.

[0055] In other words, for example, visually: objects with higher hardness typically have a solid, stable appearance, a smooth surface, and are not easily bent or deformed. In contrast, elastic bands may appear soft and stretchable. Alternatively, the difference in hardness can be felt by touching the objects. Harder objects feel firm and uniform to the touch, and are not easily compressed or bent; while elastic bands feel soft to the touch and can be stretched and squeezed. Again, the difference in hardness can be felt by touching the objects. Harder objects feel firm and uniform to the touch, and are not easily compressed or bent; while elastic bands feel soft to the touch and can be stretched and squeezed.

[0056] In other words, the difference in hardness of the middle shell 230 can be felt by looking, touching, and pulling. The middle shell 230 feels hard and uniform, and is not easily compressed or bent; while the elastic band feels soft and can be stretched and squeezed.

[0057] Specifically, in one embodiment, the middle shell 230 is made of plastic and has a certain degree of hardness to ensure the stability of the front shell 220, the middle shell 230, and the rear shell 240.

[0058] In another design, the front shell 220, the middle shell 230, and the rear shell 240 are all made of the same material, which can reduce manufacturing costs.

[0059] For wearing comfort, the front shell 220 can be equipped with eye protection, using comfortable eye mask material and taking into account the pressure distribution around the eyes in the design to avoid eye discomfort; or an additional eye shield can be provided, which is detachably connected to the front shell 220.

[0060] The technical solution of this invention employs a front shell 220, two middle shells 230, and a rear shell 240. The front shell 220 includes a main body 221 and two mounting portions 222 located at both ends of the main body 221, which is used to mount the display device 300. Each of the middle shells 230 has a front end 231 and a rear end 232 along the extending direction, and one front end 231 is detachably connected to one mounting portion 222. The rear shell 240 includes a main body 241 and two connecting portions 242 located at both ends of the main body 241; one connecting portion 242 is detachably connected to one rear end 232. During assembly, the front shell 220, the two middle shells 230, and the rear shell 240 together enclose and form a ring-shaped space 210 for wearing. The main body 221 and the body part 241 are opposite to each other. In this way, when storage is needed, the front shell 220, the middle shell 230, and the rear shell 240 can be disassembled and stored, which requires less packaging and storage space compared to existing integrated devices. When the head-mounted display device 100 needs to be used, the front shell 220, the middle shell 230, and the rear shell 240 are connected to form the ring-shaped space 210, and the user's head is located in the ring-shaped space 210 to complete the wearing.

[0061] Specifically, the middle shell 230 is magnetically connected to the front shell 220 and the rear shell 240.

[0062] In one embodiment, the head-mounted assembly 200 includes an electromagnetic module 250, which is respectively mounted on the front shell 220, middle shell 230, and rear shell 240. The electromagnetic module 250 is a functional module integrating an electromagnet and related control circuitry. It generates a magnetic field by applying current to a coil, thereby achieving magnetic attraction or disengagement. This ensures that when the head-mounted assembly 200 is not needed, i.e., when the front shell 220, middle shell 230, and rear shell 240 are stored, they do not interfere with each other, facilitating subsequent assembly. The electromagnetic module 250 typically includes an electromagnet and control circuitry. It is a device that generates a magnetic field by winding wires into a coil to form an energized coil. The electromagnetic module 250 internally includes control circuitry for managing the input and output of current. The control circuitry can perform functions such as switching the electromagnet on and off, regulating the current, and providing protection. Through the control circuitry, the attractive and release forces of the electromagnet can be precisely controlled. The electromagnetic module 250 requires an external power source to supply current to activate the electromagnet. The power source can be a DC power source or an AC power source, depending on the specific application scenario.

[0063] Referring to Figures 3 to 10, in this embodiment, to reduce costs, the structure of the head-mounted assembly 200 is optimized, the weight of the VR device is reduced, and the pressure and burden on the user's head are decreased. The head-mounted assembly 200 includes an electromagnetic module 250 and a permanent magnet module 260. The electromagnetic module 250 includes a first electromagnetic module 251 and a second electromagnetic module 280. The first electromagnetic module 251 is installed in the front shell 220, the second electromagnetic module 280 is installed in the rear shell 240, and the permanent magnet module 260 is installed in the middle shell 230. When the first electromagnetic module 251 and the second electromagnetic module 280 are energized and become magnetic, they can attract the permanent magnet module 260 of the middle shell 230, completing the assembly of the head-mounted assembly 200. When the first electromagnetic module 251 and the second electromagnetic module 280 are de-energized and their magnetism disappears, interference between the front shell 220, the middle shell 230, and the rear shell 240 during storage is avoided, facilitating storage.

[0064] Regarding the wiring arrangement, in one scheme, the wiring of the head-mounted assembly 200 is also arranged in three sections: the wiring of the front shell 220, the middle shell 230, and the rear shell 240 are arranged in parallel with the magnetic attraction part. That is, when the middle shell 230 and the front shell 220 are magnetically combined and the middle shell 230 and the rear shell 240 are magnetically combined, the terminals of the wiring are in contact and connected.

[0065] In another scheme, in order to reduce the wiring layout, the electromagnetic module 250 and the permanent magnet module 260 serve as both magnetic attractors and terminals for circuit conduction.

[0066] Refer to Figures 4 to 6 for the arrangement of the front shell 220.

[0067] Specifically, the first electromagnetic module 251 includes two electromagnet groups 252 and a first flexible circuit board 253 electrically connected to the two electromagnet groups 252. The first flexible circuit board 253 is located in the main body 221, and one electromagnet group 252 is located in a receiving cavity 223. The first flexible circuit board 253 is provided with control elements to control the magnetic strength of the electromagnet group 252. A power supply can also be provided on the first flexible circuit board 253 to activate the operation of the electromagnet group 252. After the electromagnetic module 250 and the permanent magnet module 260 of the middle shell 230 are magnetically attracted, the circuit can be connected through the electromagnetic module 250 and the permanent magnet module 260.

[0068] Referring to Figures 7 and 8, regarding the arrangement of the middle shell 230.

[0069] Specifically, the middle shell 230 includes a middle box body 233 and a middle box cover 234 that overlap to form an installation cavity. The middle front end 231 and the middle rear end 232 are located at opposite ends of the middle box body 233. After the middle shell 230 is disassembled from the front shell 220 and the rear shell 240, the end surfaces 235 located at the middle front end 231 and the middle rear end 232 are visible. The permanent magnet module 260 is placed in the installation cavity. The permanent magnet module 260 includes two permanent magnets 261 and a connecting line 263 electrically connecting the two permanent magnets 261. The two permanent magnets 261 are respectively located on the end surfaces 235. The signal of the electromagnetic module 250 is transmitted through the permanent magnet of the middle front end 231 and then through the connecting line 263 to the permanent magnet of the middle rear end 232, and then to the electromagnetic module 250 of the rear shell 240.

[0070] To ensure stable adsorption, the end surface 235 is provided with multiple mounting slots 236, and the permanent magnet 261 is provided with multiple sub-magnets 262. Each sub-magnet 262 is embedded in a mounting slot 236 and exposed outside the mounting slot 236. In this embodiment, there are 12 mounting slots 236 and sub-magnets 262 arranged in rows and columns. After assembly, the terminals of 12 sub-magnets 262 are visible from the end surfaces 235 of the front end 231 and rear end 232 of the middle shell 230. Similarly, 12 electromagnets are provided in the electromagnetic module 250.

[0071] Referring to Figures 9 and 10, regarding the arrangement of the rear shell 240.

[0072] Specifically, the second electromagnetic module 280 includes two electromagnetic components 281 and a second flexible circuit board 282 electrically connected to the two electromagnetic components 281. The connecting part 242 is provided with a relief groove 243. One electromagnetic component 281 is disposed in a connecting part 242 and exposed from the relief groove 243. The second flexible circuit board 282 is placed in the body part 241.

[0073] Referring to Figures 11 to 16, in the arrangement described above, the head-mounted assembly 200 can adapt to different users' head sizes and face shapes. Users can adjust these parameters according to their needs and comfort to minimize discomfort. Furthermore, the head-mounted assembly 200 also includes a drive motor 271. The mounting portion 222 is provided with a receiving cavity 223, and the drive motor 271 is placed within the receiving cavity 223. The first electromagnetic module 251 is movably placed within the receiving cavity 223, and the drive motor 271 is used to drive the movement of the first electromagnetic module 251.

[0074] In one scenario, if the annular space 210 of the head-mounted component 200 is smaller than the user's head, the user may experience discomfort or even be unable to wear it. The first electromagnetic module 251 is movably arranged within the receiving cavity 223. This allows the user to control the drive motor 271 to move the first electromagnetic module 251, thereby increasing the annular space 210 and facilitating wearing, if the annular space 210 is too large and the user cannot wear it properly. Alternatively, if the annular space 210 is too large and the user cannot wear it, the drive motor 271 moves the first electromagnetic module 251 within the receiving cavity 223. The first electromagnetic module 251 drives the middle shell 230 and the rear shell 240, with part of the middle shell 230 extending into the receiving cavity 223, or, as described below, the portion of the first electromagnetic module 251 exposed within the receiving cavity 223 retracting back into the receiving cavity 223, thereby reducing the annular space 210 of the head-mounted component 200 and facilitating wearing.

[0075] In one embodiment, the first electromagnetic module 251 is slidably engaged with the cavity wall of the receiving cavity 223. The headgear assembly 200 also includes a mounting plate 273 that is slidably engaged with the cavity wall of the receiving cavity 223. The first electromagnetic module 251 is mounted on the mounting plate 273. The drive motor 271 is threadedly connected to the mounting plate 273. The drive motor 271 drives the mounting plate 273 to move, so as to drive the first electromagnetic module 251 to move through the mounting plate 273.

[0076] In another embodiment, the first electromagnetic module 251 is slidably engaged with the wall of the receiving cavity 223, and the head-mounted assembly 200 also includes a mounting plate 273 that is slidably engaged with the cavity wall of the receiving cavity 223. The drive motor 271 drives the mounting plate 273 through a telescopic rod, thereby driving the first electromagnetic module 251 to move.

[0077] To better accommodate different head sizes and face shapes, the headgear assembly 200 also includes an elastic element 275 mounted on the mounting plate 273. The elastic element 275 is connected to the first electromagnetic module 251. The drive shaft of the drive motor 271 is provided with a screw 272, and the mounting plate 273 is provided with a corresponding screw hole 274. The screw 272 and the screw hole 274 are threadedly engaged. Driven by the drive motor 271, the mounting plate 273 can move back and forth within the receiving cavity 223. The elastic element 275 gives the first electromagnetic module 251 a tendency to move toward the mounting plate 273. The elastic element 275 is configured as at least one tension spring. Specifically, each mounting plate 273 is connected to each first electromagnetic module 251 by two tension springs.

[0078] A power supply is arranged on the first flexible circuit board 253. Both ends of the first flexible circuit board 253 are connected to two drive motors 271 respectively, thereby controlling the start of the drive motors 271. The first flexible circuit board 253 can be fixed to the main body 221 of the front shell 220 by screws and / or glue. The screw 272 of the drive motor 271 and the mounting plate 273 are assembled together and placed inside the receiving cavity 223. This installation can be achieved using a jig to ensure precise positioning after assembly. In use, the first electromagnetic module 251 of the front shell 220 and the second electromagnetic module 280 of the rear shell 240 are activated, making the front shell 220 and rear shell 240 magnetic. Then, the middle shell 230 is magnetically assembled with the front shell 220 and rear shell 240. When worn, if the annular space 210 is too small, the user moving downwards will cause the first electromagnetic module 251 to move, expanding the annular space 210. This can accommodate different head sizes and face shapes. The elastic element 275 provides a certain holding force, preventing detachment. After the headband 200 is removed, the first electromagnetic module 251 will automatically reset under the action of the elastic element 275, without any additional operation.

[0079] To reduce wearing pressure, skin-friendly soft padding can be provided in the middle shell 230 and back shell 240.

[0080] Furthermore, the head-mounted assembly 200 also includes a pressure sensor 290 located on the rear shell 240. The detection part of the pressure sensor 290 is located in the annular space 210. The pressure sensor 290 is electrically connected to the drive motor 271. The pressure sensor 290 is used to control the opening / closing of the drive motor 271 according to the wearing pressure threshold and the initial pressure threshold.

[0081] When the pressure value detected by the pressure sensor 290 exceeds the wearing pressure threshold, the drive motor 271 drives the mounting plate 273 to move forward in the direction toward the first electromagnetic module 251.

[0082] When the pressure value detected by the pressure sensor 290 is less than the wearing pressure threshold but greater than the initial pressure threshold, the drive motor 271 will not start.

[0083] When the pressure value of the pressure sensor 290 is less than the initial pressure threshold, the drive motor 271 drives the mounting plate 273 to move backward in a direction away from the first electromagnetic module 251 back to the initial position.

[0084] Specifically, the first electromagnetic module 251 is slidably engaged with the cavity wall of the receiving cavity 223 and can be moved out of the receiving cavity 223, so that at least part of the first electromagnetic module 251 is exposed outside the receiving cavity 223. In this way, the size of the head-mounted assembly 200 can be reduced as much as possible during assembly, which is conducive to the miniaturization of the device. At the same time, when the user wears it, the annular space 210 can be increased to accommodate different user head sizes.

[0085] Based on the above solution, in order to reduce the wearing pressure by controlling the drive motor 271 to move the pressure sensor 290, for example, after assembly, if the user finds that the annular space 210 is too small, when it needs to be put on the head, the headband assembly 200 is squeezed and pulled open by the head. The pressure sensor 290 inside the back shell 240 will also detect the pressure value, but the pulling force is small when it is just pulled open a small distance. The pressure value detected by the pressure sensor 290 is not enough to trigger the drive motor 271 to drive the screw 272 to rotate (the value at which it will be triggered can be set by the user). Therefore, at this time, the tension value is provided by four springs (two on each side). That is, the springs are stretched, and the first electromagnetic module 251 begins to protrude from the side of the body. When the user continues... When worn on the head, as the first electromagnetic module 251 is pulled and moved by the middle shell 230, the four springs are also stretched longer and longer. This is manifested by the pressure value detected by the pressure sensor 290 of the rear shell 240 increasing. When the pressure value exceeds the threshold for starting the drive motor 271, the drive motor 271 will drive the drive motor 271 shaft to rotate. The drive motor 271 shaft pushes the mounting plate 273 outward through the threaded engagement of the mounting plate 273. When fully worn on the head, the pressure value remains unchanged, the drive motor 271 stops working, and the mounting plate 273 and the springs are in a stable state. The maximum length that the springs can stretch depends on the threshold set by the pressure sensor 290. The higher the threshold, the greater the maximum stretchable value.

[0086] When the headband assembly 200 is removed, the four springs quickly return to their initial state. At this time, the springs are in their natural state, and the pressure sensor 290 cannot detect any pressure. The drive motor 271 is immediately activated to drive the screw 272 to rotate in the direction of retraction, and the mounting plate 273 moves in the opposite direction, so that the first electromagnetic module 251 is placed in the receiving cavity 223 until the gap between the middle section and the main body is zero. The appearance is that it has returned to the initial state. At this time, after the electromagnetic modules 250 of the front shell 220 and the rear shell 240 are de-energized, the headband assembly 200 can be disassembled into the front shell 220, the middle shell 230 and the rear shell 240 and stored together, reducing the storage space.

[0087] This invention also proposes a head-mounted display device 100, which includes a display device 300 and a head-mounted assembly 200. The specific structure of the head-mounted assembly 200 is as described in the above embodiments. Since this head-mounted display device 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The display device 300 is mounted on the main body 221. The display device 300 is typically composed of two parts: a display screen and a lens group. The display screen is one of the most basic components of a head-mounted VR device. It is used to display images and videos of the virtual environment, allowing users to experience immersive visual effects. Currently, most head-mounted VR devices on the market use OLED (Organic Light Emitting Diode) or LCD (Liquid Crystal Display) screens. These displays can provide high-resolution and high-refresh-rate images, allowing users to enjoy the virtual environment more clearly and smoothly. The lens group is one of the key components that helps users see a more realistic and three-dimensional virtual environment. The function of the lens assembly is to refract the image on the display screen and project it onto the user's eyes, creating a magnified effect at close range, thereby showcasing the three-dimensionality and depth of the virtual environment. Different lens assembly structures and parameters will produce different field of view and focal length effects, affecting the final visual experience.

[0088] To improve user visual comfort, the display screen and lens assembly occupy a significant amount of space and weight in a head-mounted VR device. Therefore, their allocation and design need to be carefully considered to ensure the entire device can be worn in a balanced and comfortable manner on the user's head. Different users have different eye distances and visual acuity levels; therefore, appropriate adjustment and zoom functions can be provided in the head-mounted VR device to improve user visual adaptation and comfort. Prolonged use of VR devices can easily damage the eyes; therefore, anti-glare and blue light filtering functions can be incorporated into the display device 300 to protect the user's eye health.

[0089] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A head-mounted assembly, characterized in that, include: The front housing includes a main body and two mounting portions located at both ends of the main body, the main body being used to mount a display device; The device comprises two middle shells, each having a front and a rear end along its extension direction, one of the front ends being magnetically connected to a mounting portion; and a rear shell, comprising a main body and two connecting portions at both ends of the main body; one of the connecting portions being magnetically connected to a rear end; the front shell, the two middle shells, and the rear shell together form a wearable annular space, with the main body and the main body facing each other; the head-mounted assembly includes an electromagnetic module and a permanent magnet module, the permanent magnet module being mounted on the middle shell, the electromagnetic module including a first electromagnetic module and a second electromagnetic module, the first electromagnetic module being mounted on the front shell, and the second electromagnetic module being mounted on the rear shell; the head-mounted assembly further includes a drive motor, the mounting portion having a receiving cavity, the drive motor being placed within the receiving cavity, the first electromagnetic module being movably placed within the receiving cavity, thereby being able to extend and retract relative to the receiving cavity in the front-rear direction, and the drive motor being used to drive the movement of the first electromagnetic module.

2. The head-mounted assembly as claimed in claim 1, characterized in that, The first electromagnetic module is slidably engaged with the cavity wall of the receiving cavity. The headgear assembly also includes a mounting plate that is slidably engaged with the cavity wall of the receiving cavity. The first electromagnetic module is mounted on the mounting plate. The drive motor is threadedly connected to the mounting plate. The drive motor drives the mounting plate to move, thereby moving the first electromagnetic module through the mounting plate.

3. The head-mounted assembly as claimed in claim 2, characterized in that, The headgear also includes an elastic element, one end of which is connected to the mounting plate, and the other end of which is connected to the first electromagnetic module.

4. The head-mounted assembly as claimed in claim 3, characterized in that, The hardness value of the middle shell is greater than or equal to a predetermined threshold; or the front shell, the middle shell, and the rear shell are all made of the same material.

5. The head-mounted assembly as claimed in claim 3, characterized in that, The head-mounted assembly also includes a pressure sensor disposed on the rear shell. The detection part of the pressure sensor is located within an annular space. The pressure sensor is electrically connected to the drive motor. The pressure sensor is used to control the opening and closing of the drive motor based on a wearing pressure threshold and an initial pressure threshold. Specifically, when the pressure value detected by the pressure sensor exceeds the wearing pressure threshold, the drive motor drives the mounting plate to move forward in the direction toward the first electromagnetic module. When the pressure value detected by the pressure sensor is less than the wearing pressure threshold but greater than the initial pressure threshold, the drive motor does not start. When the pressure value detected by the pressure sensor is less than the initial pressure threshold, the drive motor drives the mounting plate to move backward in the direction away from the first electromagnetic module back to the initial position.

6. The head-mounted assembly as claimed in claim 1, characterized in that, The first electromagnetic module includes two electromagnet groups and a first flexible circuit board electrically connected to the two electromagnet groups. The first flexible circuit board is placed in the main body, and one of the electromagnet groups is located in the receiving cavity. The first flexible circuit board is provided with a control element to control the magnetic strength of the electromagnet group.

7. The head-mounted assembly as claimed in claim 6, characterized in that, The middle shell includes a middle box body and a middle box cover that are fitted together to form an installation cavity. After the middle shell is disassembled from the front shell and the rear shell, the end surfaces located at the front end and the rear end of the middle shell are visible. The permanent magnet module is placed in the installation cavity. The permanent magnet module includes two permanent magnets and a connecting line that electrically connects the two permanent magnets. The two permanent magnets are respectively disposed on one of the end surfaces.

8. The head-mounted assembly as claimed in claim 7, characterized in that, The end surface is provided with multiple mounting grooves, and the permanent magnet is provided with multiple sub-magnets. One of the sub-magnets is embedded in one of the mounting grooves and exposed outside the mounting groove.

9. The head-mounted assembly as claimed in claim 1, characterized in that, The second electromagnetic module includes two electromagnetic components and a second flexible circuit board electrically connected to the two electromagnetic components. The connecting portion is provided with a clearance groove. One of the electromagnetic components is disposed in one of the connecting portions and exposed from the clearance groove. The second flexible circuit board is placed in the body portion.

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