Head-mounted device

Abstract

The application discloses a head-mounted device, which comprises a shell and a mounting bracket. The front side of the shell is provided with a heat dissipation opening. The mounting bracket is arranged in the shell and is slidably connected to the shell in the front-rear direction to mount at least one of a battery and a main control board. The front side of the mounting bracket is provided with a heat dissipation part which is exposed from the heat dissipation opening. The technical scheme aims to improve the heat dissipation performance of the head-mounted device.

Description

Technical Field

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

[0002] When using head-mounted devices, such as VR glasses, the main control board and battery generate a lot of heat. However, the heat dissipation of existing head-mounted devices is poor. On the one hand, this affects the working performance of the head-mounted device, and on the other hand, it causes users to feel stuffy after wearing it for a long time, which affects the user experience. Summary of the Invention

[0003] The main objective of this invention is to provide a head-mounted device that improves the heat dissipation performance of the head-mounted device.

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

[0005] The housing, wherein a heat dissipation vent is provided on the front side of the housing; and

[0006] A mounting bracket is disposed inside the housing and slidably connected to the housing in the front-rear direction for mounting at least one of the battery and the main control board. A heat dissipation part is provided on the front side of the mounting bracket, and the heat dissipation part is exposed from the heat dissipation vent.

[0007] Optionally, the mounting bracket is further equipped with a lens, which is located on the rear side of the heat dissipation part. The mounting bracket slides relative to the housing, which can drive the lens and the heat dissipation part to move synchronously.

[0008] Optionally, the heat dissipation unit includes a substrate, a front trim panel located on the front side of the substrate, and a heat dissipation body disposed between the substrate and the front trim panel. The substrate is used for mounting at least one of the battery and the main control board, and the heat dissipation body is provided with a plurality of heat dissipation holes communicating with the external environment.

[0009] Optionally, corresponding to the two extreme points of the travel of the mounting bracket, the heat dissipation vents are respectively located near the front trim panel and the base plate.

[0010] Optionally, the heat dissipation body is configured as a hollow cylindrical structure, and the heat dissipation holes extend through the heat dissipation body from the inside to the outside.

[0011] Optionally, the housing is equipped with a first drive motor, which is driven and connected to the mounting bracket.

[0012] Optionally, the mounting bracket is configured as an integral structure.

[0013] Optionally, the mounting bracket includes a first bracket and a second bracket that are separable in the front-rear direction, the first bracket being located in front of the second bracket, the heat dissipation part being disposed in front of the first bracket, and the lens being mounted on the second bracket.

[0014] Optionally, the first bracket has a rotating part, which is rotatably disposed on a side close to the second bracket. The rotating part has a snap-fit ​​ring groove, and the groove wall of the snap-fit ​​ring groove is provided with a snap-fit ​​inlet that extends axially toward the second bracket. The second bracket has a snap-fit ​​protrusion that protrudes axially toward the first bracket. The snap-fit ​​protrusion can enter the snap-fit ​​ring groove from the snap-fit ​​inlet. The first drive motor is configured as a stepper motor and is driven and connected to the first bracket. The head-mounted device also includes a second drive motor mounted on the first bracket. The second drive motor is configured as a rotary motor and is driven and connected to the rotating part.

[0015] Optionally, the mounting bracket has a receiving space, which houses and installs the lens barrel, battery, and main control board, and the lens is mounted on the lens barrel.

[0016] In this invention, the heat dissipation unit is exposed at the front of the housing, allowing for convective heat exchange between the external air and the heat dissipation unit, thereby removing heat generated by the main control board or battery. Furthermore, the exposed volume of the heat dissipation unit can be changed by driving the mounting bracket to slide relative to the housing in the front-back direction, thus altering the heat exchange area between the heat dissipation unit and the external environment, and flexibly adjusting the heat dissipation efficiency of the head-mounted device. When the head-mounted device is running programs with large memory requirements, the exposed volume of the heat dissipation unit can be increased by driving the mounting bracket to move forward, thereby increasing the convective heat exchange area between the heat dissipation unit and the external space, and improving the heat dissipation efficiency of the head-mounted device. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a cross-sectional structural schematic diagram of an embodiment of the head-mounted device of the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of another embodiment of the head-mounted device of the present invention.

[0020] Explanation of icon numbers:

[0021]

[0022] 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

[0023] 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.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] This invention proposes a head-mounted device.

[0028] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the head-mounted device includes:

[0029] Housing 100, wherein a heat dissipation vent 110 is provided on the front side of housing 100; and

[0030] A mounting bracket 200 is disposed inside the housing 100 and slidably connected to the housing 100 in the front-rear direction for mounting at least one of the battery 310 and the main control board 320. A heat dissipation part 210 is provided on the front side of the mounting bracket 200, and the heat dissipation part 210 is exposed from the heat dissipation port 110.

[0031] It should be noted that the descriptions of the front and back directions in this invention are all based on the wearing state of the head-mounted device.

[0032] In this invention, the heat dissipation unit 210 is exposed at the heat dissipation vent 110 on the front side of the housing 100, allowing air from the external environment to convect and exchange heat with the heat dissipation unit 210, thereby removing the heat generated by the main control board 320 or the battery 310. Furthermore, the exposed volume of the heat dissipation unit 210 can be changed by driving the mounting bracket 200 to slide relative to the housing 100 in the front-rear direction, thus altering the heat exchange area between the heat dissipation unit 210 and the external environment, and flexibly adjusting the heat dissipation efficiency of the head-mounted device.

[0033] In existing technologies, multiple small holes are typically provided on the outer periphery of the housing 100 to dissipate heat from the inside of the head-mounted device. However, this method has low heat dissipation efficiency and is difficult to achieve effective heat dissipation when the head-mounted device is running programs with large memory requirements. In the technical solution of this invention, when the head-mounted device is running programs with large memory requirements, the mounting bracket 200 can be moved forward to increase the exposed volume of the heat dissipation part 210, thereby increasing the area for convective heat exchange between the heat dissipation part 210 and the external space, thus improving the heat dissipation efficiency of the head-mounted device.

[0034] Furthermore, in this embodiment, the mounting bracket 200 also mounts a lens 331, which is located behind the heat dissipation unit 210. The mounting bracket 200 slides relative to the housing 100, enabling the lens 331 and the heat dissipation unit 210 to move synchronously. Thus, when increasing the exit pupil distance of the head-mounted device (i.e., the distance between the lens 331 and the human eye), the mounting bracket 200 moves the lens 331 forward while simultaneously moving the battery 310 or main control board 320 mounted on the mounting bracket 200 forward. This prevents the lens 331 from getting too close to components that generate a lot of heat, such as the battery 310 or main control board 320, thus avoiding overheating and deformation of the lens 331 and ensuring the lifespan of the head-mounted device. Moreover, the mounting bracket 200 can move the heat dissipation unit 210 and the lens 331 synchronously, allowing for simultaneous adjustment of the exposed area of ​​the heat dissipation unit 210 when adjusting the exit pupil distance, thereby simultaneously adjusting the heat dissipation efficiency of the head-mounted device, which is very convenient.

[0035] In addition, if only the heat dissipation performance of the head-mounted device needs to be adjusted separately, the mounting bracket 200 can be configured into two separable parts, with the heat dissipation part 210 and the lens 331 located on the two parts of the mounting bracket 200 respectively. The two parts can be separated, and then the part containing the heat dissipation part 210 can be moved separately. Alternatively, the mounting bracket 200 can be configured as an integral structure, and the forehead pad of the head-mounted device can be configured to be adjustable back and forth relative to the housing 100. When the mounting bracket 200 moves, the forehead pad can be moved back and forth simultaneously to offset the displacement of the lens 331, so that the exit pupil distance remains unchanged.

[0036] Of course, in other embodiments, the main control board 320, battery 310 and heat sink 210 may be mounted on the same bracket, and the lens 331 may be mounted on another independent bracket. The latter bracket may be fixed to the housing 100, and the exit pupil distance may be adjusted by driving the lens 331 to move relative to the bracket. Alternatively, it may be movably connected to the housing 100, and the exit pupil distance may be adjusted by driving the bracket to move relative to the housing 100.

[0037] Specifically, the mounting bracket 200 has a receiving space 201, which houses and installs the lens barrel 330, battery 310, and main control board 320. The lens 331 is mounted on the lens barrel 330. This design separates the components within the mounting bracket 200 from the housing 100, preventing interference from other components with the relative movement between the mounting bracket 200 and the housing 100. Furthermore, when components on the mounting bracket 200 are moved, they do not directly contact the housing 100, and when the mounting bracket 200 moves the components, they do not rub against the housing 100, preventing further structural damage. Additionally, the outer periphery of the mounting bracket 200 can be configured as a grid structure to facilitate heat dissipation from the battery 310 and main control board 320, reducing heat accumulation inside the mounting bracket 200. Alternatively, in other embodiments, the lens 331 can be directly mounted on the mounting bracket 200, while the battery 310 and main control board 320 are located outside the mounting bracket 200.

[0038] Furthermore, in this embodiment, the housing 100 is equipped with a first drive motor 340, which is driven and connected to the mounting bracket 200. Specifically, the first drive motor 340 is located on the outside of the mounting bracket 200 and is connected to the main control board 320 or the battery 310 via wires. A button for controlling the first drive motor 340 can be provided on the outside of the housing 100. The first drive motor 340 can be configured as a stepper motor, and pressing the button once achieves a shift of one gear. Of course, in other embodiments, the mounting bracket 200 can also be driven to move back and forth by a micro cylinder.

[0039] Furthermore, in this embodiment, the heat dissipation unit 210 includes a substrate 211, a front trim panel 212 located on the front side of the substrate 211, and a heat dissipation body 213 disposed between the substrate 211 and the front trim panel 212. The substrate 211 is used to mount at least one of the battery 310 and the main control board 320. The heat dissipation body 213 is provided with a plurality of heat dissipation holes 214 communicating with the external environment. In this way, on the one hand, air can enter the interior of the heat dissipation body 213 through the heat dissipation holes 214, thereby further increasing the heat exchange area between the outside air and the heat dissipation unit 210, thereby further improving the heat exchange efficiency of the head-mounted device. On the other hand, the front trim panel 212 can provide a certain degree of shielding for the heat dissipation body 213 and the heat dissipation vent 110, which can make the appearance of the head-mounted device more consistent from the front view, thereby ensuring the aesthetic appearance of the head-mounted device. Of course, in other embodiments, the heat dissipation unit 210 may also have a plurality of fins on its outer periphery to increase the heat exchange area of ​​the heat dissipation unit 210.

[0040] Furthermore, in this embodiment, corresponding to the two extreme points of the moving stroke of the mounting bracket 200, the heat dissipation vent 110 is respectively located close to the front trim panel 212 and the base plate 211. It can be understood that, as Figure 1 As shown, corresponding to the extreme point where the mounting bracket 200 moves forward, the heat dissipation vent 110 is positioned close to the substrate 211, allowing most of the heat dissipation body 213 to be exposed, thereby greatly increasing the heat exchange area between the heat dissipation part 210 and the external environment, ensuring the heat dissipation efficiency of the head-mounted device; as Figure 2 As shown, corresponding to the extreme point of the rearward movement of the mounting bracket 200, the heat dissipation vent 110 is positioned close to the front trim panel 212, allowing most of the heat dissipation body 213 to be housed within the housing 100, further ensuring the uniformity of the head-mounted device's appearance from a frontal view. Alternatively, in other embodiments, the heat dissipation vent 110 may be positioned close to the substrate 211 at both extreme points of the mounting bracket 200's forward and backward movement, resulting in a larger exposed volume of the heat dissipation body 213 to maximize the heat dissipation performance of the head-mounted device.

[0041] Furthermore, in this embodiment, the heat dissipation body 213 is configured as a hollow cylindrical structure, and the heat dissipation holes 214 are disposed through the heat dissipation body 213 from the inside out. This results in a larger exposed area of ​​the substrate 211 and a larger area for heat exchange with the ambient air, which is beneficial for ensuring the heat dissipation efficiency of the head-mounted device. Specifically, installing a fan inside the heat dissipation body 213, or installing cooling channels within the substrate 211, can further improve the heat dissipation performance of the heat dissipation section 210. Of course, in other embodiments, multiple heat dissipation holes 214 can also penetrate the heat dissipation body 213 along different radial directions, forming a divergent structure.

[0042] In one embodiment, such as Figure 1 and Figure 2 As shown, the mounting bracket 200 is configured as an integral structure. This allows for convenient simultaneous adjustment of the exit pupil distance and heat dissipation performance of the head-mounted device. The outer side of the mounting bracket 200 may be provided with a clearance groove to accommodate the first drive motor 340, and the output shaft of the drive motor is connected to one wall of the clearance groove.

[0043] In one embodiment, the mounting bracket 200 includes a first bracket and a second bracket (not shown) that are separable in the front-rear direction. The first bracket is located in front of the second bracket, the heat dissipation unit 210 is disposed in front of the first bracket, and the lens 331 is mounted on the second bracket. Thus, by fixing the first and second brackets together, the exit pupil distance and heat dissipation performance of the head-mounted device can be adjusted simultaneously; by separating the first and second brackets, the exit pupil distance and heat dissipation performance of the head-mounted device can be adjusted independently. This allows the user to adjust the exit pupil distance and heat dissipation performance of the head-mounted device more flexibly.

[0044] Furthermore, in this embodiment, the first bracket is provided with a rotating part, which is rotatably disposed on a side close to the second bracket. The rotating part is provided with a snap-fit ​​ring groove, and the groove wall of the snap-fit ​​ring groove is provided with a snap-fit ​​inlet axially extending toward the second bracket. The second bracket is provided with a snap-fit ​​protrusion axially protruding toward the first bracket. The snap-fit ​​protrusion can enter the snap-fit ​​ring groove from the snap-fit ​​inlet. The first drive motor 340 is configured as a stepper motor and is driven and connected to the first bracket. The head-mounted device also includes a second drive motor mounted on the first bracket. The second drive motor is configured as a rotary motor and is driven and connected to the rotating part.

[0045] Specifically, when the first and second supports are separated, the first support can be driven to move backward by the first drive motor 340, while the second drive motor drives the rotating part, causing the locking protrusion and the locking inlet to face each other circumferentially. Thus, when the first support moves backward to abut against the second support, the locking protrusion enters the locking ring groove through the locking inlet. Then, the second drive motor drives the rotating part to rotate, causing the locking protrusion and the locking inlet to misalign circumferentially, thus stabilizing the axial connection between the first and second supports. Afterward, moving the first support forward or backward by the first drive motor 340 will simultaneously move the second support synchronously, allowing for synchronized adjustment of the pupil distance and heat dissipation performance of the head-mounted device. When the first and second supports are connected, the second drive motor drives the rotating part to rotate, causing the locking protrusion and the locking inlet to face each other circumferentially. Then, the first drive motor 340 is activated to drive the first support forward, causing the locking protrusion to disengage from the locking ring groove, thus disconnecting the first and second supports. This allows for independent adjustment of the pupil distance and heat dissipation performance of the head-mounted device. Of course, in other embodiments, the first bracket may be provided with a bayonet, and the second bracket may be provided with a retractable gripper. When the retracted gripper is inserted into the bayonet, it expands outward to achieve a stable connection between the first bracket and the second bracket.

[0046] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A head-mounted device, characterized in that, include: The housing has a heat dissipation vent on its front side; as well as A mounting bracket is disposed inside the housing and slidably connected to the housing in the front-rear direction for mounting at least one of the battery and the main control board. A heat dissipation part is provided on the front side of the mounting bracket, and the heat dissipation part is exposed from the heat dissipation vent. The mounting bracket is also equipped with a lens, which is located on the rear side of the heat dissipation part. The mounting bracket slides relative to the housing, which can drive the lens and the heat dissipation part to move synchronously. The heat dissipation unit includes a substrate, a front trim panel located on the front side of the substrate, and a heat dissipation body disposed between the substrate and the front trim panel. The substrate is used for mounting at least one of the battery and the main control board. The heat dissipation body is provided with a plurality of heat dissipation holes that communicate with the external environment. Corresponding to the two extreme points of the moving stroke of the mounting bracket, the heat dissipation vents are respectively located near the front trim panel and the base plate; The heat dissipation body is configured as a hollow cylindrical structure, and the heat dissipation holes are provided to penetrate the heat dissipation body from the inside to the outside; The housing is equipped with a first drive motor, which is connected to the mounting bracket. The mounting bracket includes a first bracket and a second bracket that are separable in the front-rear direction. The first bracket is located in front of the second bracket, the heat dissipation part is disposed in front of the first bracket, and the lens is mounted on the second bracket. The first bracket has a rotating part, which is rotatably disposed on a side close to the second bracket. The rotating part has a snap-fit ​​ring groove, and the groove wall of the snap-fit ​​ring groove is provided with a snap-fit ​​inlet that extends axially toward the second bracket. The second bracket has a snap-fit ​​protrusion that protrudes axially toward the first bracket. The snap-fit ​​protrusion can enter the snap-fit ​​ring groove through the snap-fit ​​inlet. The first drive motor is a stepper motor and is driven and connected to the first bracket. The head-mounted device also includes a second drive motor mounted on the first bracket. The second drive motor is a rotary motor and is driven and connected to the rotating part.

2. The head-mounted device as described in claim 1, characterized in that, The mounting bracket has a accommodating space, which houses and installs the lens barrel, battery, and main control board. The lens is mounted on the lens barrel.

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