Virtual reality head-mounted display device and heat dissipation method thereof

Abstract

The application relates to a virtual reality head-mounted display device and a heat dissipation method thereof. The virtual reality head-mounted display device comprises a host including a display; a first heat dissipation structure arranged on a side of the display close to a human eye, the first heat dissipation structure comprising a first shell and a ring-shaped heat dissipation channel formed by the first shell, the first heat dissipation structure comprising a first opening communicating with the heat dissipation channel; and a heat dissipation fan arranged on the outside of the first heat dissipation structure and communicating with the first opening, the heat dissipation fan comprising a blowing mode for blowing air to the heat dissipation channel and / or a suction mode for sucking air from the heat dissipation channel; wherein the first heat dissipation structure comprises a plurality of heat dissipation micropores distributed on the first shell and penetrating through the first shell. The application can improve the heat dissipation performance and wearing comfort.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a virtual reality head-mounted display device and its heat dissipation method. Background Technology

[0002] With the development of Virtual Reality (VR) technology, virtual reality headsets (such as VR glasses) offer a fully immersive audiovisual experience within a closed three-dimensional virtual space, expanding from entertainment to a wide range of fields, including consumer entertainment, training and design, medical education, and business tourism. From mass consumption to industrial manufacturing, VR technology is profoundly changing people's learning and lifestyles with its powerful immersive experience. The diverse application scenarios place higher demands on virtual reality headsets, making heat dissipation design crucial to meet the requirements of comfortable, smooth, and immersive wear.

[0003] However, existing virtual reality head-mounted display devices suffer from insufficient heat dissipation. Summary of the Invention

[0004] Therefore, it is necessary to address the problem of insufficient heat dissipation in existing virtual reality head-mounted display devices by providing a virtual reality head-mounted display device and its heat dissipation method.

[0005] According to a first aspect of this application, a virtual reality head-mounted display device is provided, comprising:

[0006] The host computer, including the monitor;

[0007] A first heat dissipation structure is disposed on the side of the display closer to the human eye. The first heat dissipation structure includes a first housing and an annular heat dissipation channel formed by the first housing. The first heat dissipation structure includes a first opening communicating with the heat dissipation channel.

[0008] A cooling fan is disposed on the outside of the first heat dissipation structure and communicates with the first opening. The cooling fan includes a supply mode for supplying air to the heat dissipation channel and / or a suction mode for exhausting air from the heat dissipation channel.

[0009] The first heat dissipation structure includes a plurality of heat dissipation micropores distributed in the first housing and penetrating the first housing.

[0010] In some embodiments, the material of the first heat dissipation structure includes a polymer-based graphene composite material.

[0011] In some embodiments, the first housing includes a first sub-housing portion and a second sub-housing portion, wherein the first sub-housing portion is located on the side of the second sub-housing portion closer to the human eye;

[0012] At least a portion of the heat dissipation micropores are located in the first sub-shell portion.

[0013] In some embodiments, the plurality of heat dissipation microholes are evenly distributed in various parts of the first housing portion.

[0014] In some embodiments, the cooling fan includes an airflow pattern that delivers air to the heat dissipation channel;

[0015] The heat dissipation channel includes a first sub-channel corresponding to the upper side of the human eye and a second sub-channel corresponding to the lower side of the human eye. One of the first sub-channel and the second sub-channel is an air intake sub-channel, and the other is an air exhaust sub-channel.

[0016] In some embodiments, the virtual reality head-mounted display device further includes:

[0017] A buffer structure is connected to the host and disposed on the side of the display near the human eye. The buffer structure includes a second housing and a receiving cavity formed by the second housing. The first heat dissipation structure is sleeved in the receiving cavity.

[0018] In some embodiments, the virtual reality head-mounted display device further includes:

[0019] A temperature sensor is disposed on the surface of the first heat dissipation structure.

[0020] Secondly, based on the same concept, this application also provides a heat dissipation method for a virtual reality head-mounted display device, applied to the virtual reality head-mounted display device described in any one of the above-mentioned applications, comprising:

[0021] The virtual reality head-mounted display device is provided, the virtual reality head-mounted display device includes a temperature sensor and a controller, the controller being configured to adjust the cooling airflow of the cooling fan according to the measured temperature monitored by the temperature sensor.

[0022] In some embodiments, the virtual reality head-mounted display device stores a preset critical temperature, which includes a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, wherein the first sub-preset critical temperature, the second sub-preset critical temperature, and the third sub-preset critical temperature increase sequentially; the step of adjusting the cooling airflow of the cooling fan according to the measured temperature monitored by the temperature sensor includes:

[0023] Obtain the measured temperature monitored by the temperature sensor;

[0024] Compare the measured temperature with the preset critical temperature;

[0025] Wherein, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, the controller controls the cooling fan to output a first airflow for cooling air.

[0026] Under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, the controller controls the cooling fan to output a second airflow for cooling.

[0027] When the measured temperature is greater than the third preset critical temperature, the controller controls the cooling fan to output a third airflow for cooling.

[0028] The heat dissipation air volume increases sequentially for the first air volume, the second air volume, and the third air volume.

[0029] In some embodiments, the virtual reality head-mounted display device stores a preset differential temperature and a preset critical temperature. The preset critical temperature includes a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, wherein the first sub-preset critical temperature, the second sub-preset critical temperature, and the third sub-preset critical temperature increase sequentially, and the preset differential temperature is 0.8. o C-1.2 o C; The step of adjusting the cooling airflow of the cooling fan based on the measured temperature monitored by the temperature sensor includes:

[0030] Obtain the measured temperature monitored by the temperature sensor;

[0031] The measured temperature is compared with the preset critical temperature, and the difference between the measured temperature and the preset critical temperature is compared with the preset difference temperature.

[0032] Wherein, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, and under the condition that the difference between the measured temperature and the first sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a first airflow for cooling air.

[0033] Under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the second sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a second airflow for cooling.

[0034] Under the condition that the measured temperature is greater than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the third sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a third airflow for cooling.

[0035] The heat dissipation air volume increases sequentially for the first air volume, the second air volume, and the third air volume.

[0036] In this embodiment, the virtual reality head-mounted display device includes a host, a first heat dissipation structure, and a cooling fan. The host includes a display; the first heat dissipation structure is disposed on the side of the display near the user's eyes, and includes a first housing and an annular heat dissipation channel formed by the first housing, the first heat dissipation structure including a first opening communicating with the heat dissipation channel; the cooling fan is disposed on the outside of the first heat dissipation structure and communicates with the first opening, the cooling fan including a blowing mode for supplying air to the heat dissipation channel, and / or a drawing mode for exhausting air from the heat dissipation channel; wherein, the first heat dissipation structure includes a plurality of heat dissipation micro-holes distributed in the first housing and penetrating the first housing. In a first aspect, when the cooling fan is in the blowing mode, and is supplying air within the heat dissipation channel, the heat dissipation micro-holes can deliver the heat dissipation airflow through the heat dissipation micro-holes to the outside of the first housing, for example, the heat dissipation airflow can be delivered through the heat dissipation micro-holes to the part near the user's head, improving heat dissipation efficiency and wearing comfort. Secondly, when the cooling fan is in exhaust mode, it draws external air into the cooling channel through the micro-holes, such as drawing hot air near the head into the channel and expelling it, thus improving heat dissipation efficiency and wearing comfort. Thirdly, by removing heat and moisture from the enclosed space around the eyes using the cooling fan, and by utilizing multiple micro-holes distributed throughout the first housing, a fresh air ventilation and anti-suffocation system is effectively provided. This system can employ a positive pressure design (blowing air inwards) or a negative pressure design (extracting moisture), continuously introducing cool external air to reduce humidity and carbon dioxide concentration inside the mask / buffer structure, thereby improving wearing comfort. The embodiments of this application can have at least one of the beneficial effects described above. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is an overall schematic diagram of a virtual reality head-mounted display device provided in an embodiment of this application.

[0039] Figure 2 This is a schematic diagram of the first surface or the first sub-shell portion of the first heat dissipation structure in a virtual reality head-mounted display device provided in an embodiment of this application.

[0040] Figure 3 This is a schematic diagram of a cross-section or heat dissipation channel of a first heat dissipation structure in a virtual reality head-mounted display device provided in an embodiment of this application.

[0041] Figure 4 This is a cross-sectional schematic diagram of a first heat dissipation structure fitted inside a buffer structure in a virtual reality head-mounted display device provided in an embodiment of this application.

[0042] Figure 5 This is a schematic diagram of the first process steps of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application.

[0043] Figure 6 This is a schematic diagram of the second process steps of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application.

[0044] Figure 7 This is a schematic diagram of the heat dissipation process of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application.

[0045] Reference numerals: Virtual reality head-mounted display device 100; main unit 10; first heat dissipation structure 20; buffer structure 30; cooling fan 40; temperature sensor 50; first housing 22; heat dissipation channel 21; first opening 21k; heat dissipation micropore 221; first sub-housing part 22a; second sub-housing part 22b; first sub-channel 211; second sub-channel 212; receiving cavity 31; second housing 32; first sub-heat dissipation part 32a; second sub-heat dissipation part 32b; top headband 60; side headband 70; measured temperature T0; first sub-preset critical temperature T1; second sub-preset critical temperature T2; third sub-preset critical temperature T3; preset difference temperature ΔT0; first sub-difference ΔT1; second sub-difference ΔT2; third sub-difference ΔT3. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0053] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0054] Existing virtual reality (VR) headsets suffer from insufficient heat dissipation. One easily overlooked aspect of current heat dissipation designs is the thermal impact on the contact area between the user's face and the VR headset. Insufficient heat dissipation in this area (the eye socket and the microenvironment surrounding the mask) can directly lead to a triple problem affecting optical vision, physiological comfort, and skin health. For example, fogging of optical lenses can cause instantaneous blurring and a sharp drop in contrast, disrupting the immersive experience; the inability to dissipate heat in a confined space can cause excessive sweating around the eyes, which can sting; and high temperature, high humidity, and a closed environment can promote bacterial growth and contact dermatitis.

[0055] In view of the above problems, this application provides a virtual reality head-mounted display device and its heat dissipation method, which can solve at least one of the problems mentioned above in the prior art.

[0056] Please see Figures 1 to 7 . Figure 1 This is an overall schematic diagram of a virtual reality head-mounted display device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the first surface or the first sub-shell portion of the first heat dissipation structure in a virtual reality head-mounted display device provided in an embodiment of this application. Figure 3 This is a schematic diagram of a cross-section or heat dissipation channel of a first heat dissipation structure in a virtual reality head-mounted display device provided in an embodiment of this application. Figure 4This is a cross-sectional schematic diagram of a first heat dissipation structure fitted inside a buffer structure in a virtual reality head-mounted display device provided in an embodiment of this application.

[0057] Figure 5 This is a schematic diagram of the first process steps of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application. Figure 6 This is a schematic diagram of the second process steps of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application. Figure 7 This is a schematic diagram of the heat dissipation process of a heat dissipation method for a virtual reality head-mounted display device provided in an embodiment of this application.

[0058] Firstly, please refer to Figures 1 to 4 This application provides a virtual reality head-mounted display device 100, which includes a host 10, a first heat dissipation structure 20, and a cooling fan 40. The host 10 includes a display; the first heat dissipation structure 20 is disposed on the side of the display close to the human eye, and includes a first housing 22 and an annular heat dissipation channel 21 formed by the first housing 22, and includes a first opening 21k communicating with the heat dissipation channel 21; the cooling fan 40 is disposed on the outside of the first heat dissipation structure 20 and communicates with the first opening 21k, and includes a blowing mode for blowing air into the heat dissipation channel 21, and / or a drawing mode for drawing air from the heat dissipation channel 21; wherein, the first heat dissipation structure 20 includes a plurality of heat dissipation microholes 221 distributed in the first housing 22 and penetrating the first housing 22.

[0059] For example, the virtual reality head-mounted display device 100 can be VR glasses, but is not limited to this.

[0060] For example, when the virtual reality head-mounted display device 100 is VR glasses, it includes a glasses body and a headband connected to the glasses body. The glasses body includes components such as a host 10 and a buffer structure 30, which can be a sponge. In this embodiment, the virtual reality head-mounted display device 100 also includes structures and components such as a first heat dissipation structure 20 and a cooling fan 40. The buffer structure 30 is connected to the host 10 and is located on the side of the display closest to the human eye. The host 10 includes a display, which may include a left-eye display and / or a right-eye display. The left-eye display and the right-eye display respectively display left-eye images and right-eye images. After the human eye obtains the difference information, it generates a stereoscopic feeling in the brain, thereby experiencing a virtual stereoscopic image.

[0061] For example, the headband may include a top headband 60 and / or a side headband 70. The headband is a head mechanical suspension weight distribution system that can solve the problem of the face being heavy in the front and light in the back. It can fix the optical position, distribute pressure, and improve the comfort of wearing for a long time.

[0062] For example, such as Figures 1 to 4 As shown, the first heat dissipation structure 20 is located on the side of the display closest to the user's eyes, that is, the first heat dissipation structure 20 is located on the side of the display closest to the top headband 60 and / or the side headband 70. The first heat dissipation structure 20 can be close to or near the user's head, thereby dissipating heat quickly and preventing the user from feeling uncomfortable due to temperature.

[0063] It should be noted that, Figure 2 This illustrates a side view of the first heat dissipation structure 20 near the human eye, or... Figure 2 The surface of the first sub-casing portion 22a of the first heat dissipation structure 20 is shown in the diagram; Figure 3 The diagram illustrates a cross-sectional view of the first heat dissipation structure 20 on a first plane, which is parallel to the surface of the first heat dissipation structure 20 facing the human eye. Figure 4 A schematic diagram of the cross-section of the first heat dissipation structure 20 and the buffer structure 30 on the first plane is shown.

[0064] For example, such as Figure 3 As shown, the first heat dissipation structure 20 includes a first housing 22 and an annular heat dissipation channel 21 formed around the first housing 22. The first heat dissipation structure 20 includes a first opening 21k that connects to the heat dissipation channel 21. The first opening 21k can be either an air inlet or an air outlet, or it can be a general opening with both air inlet and air outlet functions.

[0065] For example, the cooling fan 40 includes an air supply mode that delivers air to the heat dissipation channel 21, and / or an exhaust mode that draws air from the heat dissipation channel 21. When the cooling fan 40 includes both air supply and exhaust modes, the portion of the cooling fan 40 near the intake sub-channel can perform the air supply mode, providing positive air pressure to the heat dissipation channel; the portion of the cooling fan 40 near the exhaust sub-channel can perform the exhaust mode, providing negative air pressure to the heat dissipation channel. When the cooling fan 40 includes both air supply and exhaust modes, the air supply and exhaust modes can be performed simultaneously or at different times.

[0066] For example, such as Figure 2As shown, the first heat dissipation structure 20 includes a plurality of heat dissipation microholes 221 distributed in and penetrating the first housing 22. The first housing 22 surrounds and forms an annular heat dissipation channel 21. When the cooling fan 40 is in air supply mode, it can deliver airflow into the heat dissipation channel 21. For example, it can deliver airflow into the area near the head, improving heat dissipation efficiency and wearing comfort. When the cooling fan 40 is in exhaust mode, it can draw external air into the heat dissipation channel 21. For example, it can draw hot air near the head into the heat dissipation channel 21, improving heat dissipation efficiency and wearing comfort.

[0067] In this embodiment, the virtual reality head-mounted display device 100 includes a host 10, a first heat dissipation structure 20, and a cooling fan 40. The host 10 includes a display; the first heat dissipation structure 20 is disposed on the side of the display close to the human eye, and includes a first housing 22 and an annular heat dissipation channel 21 formed by the first housing 22, and includes a first opening 21k communicating with the heat dissipation channel 21; the cooling fan 40 is disposed on the outside of the first heat dissipation structure 20 and communicates with the first opening 21k, and includes a blowing mode for supplying air to the heat dissipation channel 21, and / or a drawing mode for exhausting air from the heat dissipation channel 21; wherein, the first heat dissipation structure 20 includes a plurality of heat dissipation microholes 221 distributed in the first housing 22 and penetrating the first housing 22. Firstly, when the cooling fan 40 is in air supply mode, it supplies air within the heat dissipation channel 21. The heat dissipation micro-holes 221 can then deliver the cooling airflow outside the first housing 22. For example, the cooling airflow can be delivered through the heat dissipation micro-holes 221 to areas close to the head, improving heat dissipation efficiency and wearing comfort. Secondly, when the cooling fan 40 is in exhaust mode, it draws external air into the heat dissipation channel 21. For example, hot air near the head can be drawn into the heat dissipation channel 21 and expelled, improving heat dissipation efficiency and wearing comfort. Thirdly, by using a cooling fan 40 to remove heat and moisture from the enclosed space around the eyes, and utilizing multiple heat dissipation micro-holes 221 distributed throughout the first housing 22, a fresh air ventilation and anti-suffocation system is effectively provided. This system can employ a positive pressure design (blowing air inwards) or a negative pressure design (extracting moisture), continuously introducing cool external air to reduce the humidity and carbon dioxide concentration inside the mask / buffer structure 30, thereby improving wearing comfort. The embodiments of this application can have at least one of the aforementioned beneficial effects.

[0068] In some embodiments, the material of the first heat dissipation structure 20 includes a polymer-based graphene composite material.

[0069] For example, the material of the first heat dissipation structure 20 includes, but is not limited to, polymer-based graphene composites.

[0070] For example, using polymer-based graphene composite material as the material of the first heat dissipation structure 20 / first shell 22, multiple uniformly distributed heat dissipation micropores 221 can be achieved. Simultaneously, this gives the first heat dissipation structure 20 / first shell 22 excellent flexibility, good temperature resistance and chemical stability, and good insulation. Furthermore, polymer-based graphene composite material is easy to synthesize, and its molding state is a highly elastic sheet / soft pad, exhibiting a rubber-like texture with excellent compressibility and resilience. It can be combined with the cushioning structure 30 to provide users with good wearing comfort.

[0071] In some implementations, such as Figure 1 and Figure 2 As shown, the first housing 22 includes a first sub-housing portion 22a and a second sub-housing portion 22b, with the first sub-housing portion 22a located on the side of the second sub-housing portion 22b closer to the human eye; at least a portion of the heat dissipation micropores 221 are located in the first sub-housing portion 22a.

[0072] For example, the first housing 22 includes a first sub-housing portion 22a and a second sub-housing portion 22b. The first sub-housing portion 22a is located on the side of the second sub-housing portion 22b closer to the human eye. That is, when the user wears the virtual reality head-mounted display device 100, the first sub-housing portion 22a faces / is towards the human eye, and the second sub-housing portion 22b is away from the human eye.

[0073] For example, at least a number of heat dissipation micropores 221 are located in the first sub-shell portion 22a, which can quickly dissipate heat from the area near the eyes and quickly ventilate the area near the eyes, thereby improving wearing comfort.

[0074] In some embodiments, a plurality of heat dissipation microholes 221 are evenly distributed in various parts of the first housing 22.

[0075] For example, the first heat dissipation structure 20 is made of a polymer-based graphene composite material in an integral molded structure. Multiple heat dissipation micropores 221 are evenly distributed in various parts of the first housing 22, which can not only quickly dissipate heat from the host 10 and improve the host's working performance, but also quickly dissipate heat and ventilate the head-wearing part, improving wearing comfort.

[0076] In some embodiments, the cooling fan 40 includes an air delivery mode that delivers air to the cooling channel 21; the cooling channel 21 includes a first sub-channel 211 corresponding to the upper side of the human eye and a second sub-channel 212 corresponding to the lower side of the human eye, wherein one of the first sub-channel 211 and the second sub-channel 212 is an air intake sub-channel and the other is an air exhaust sub-channel.

[0077] For example, in some embodiments, when a user wears the virtual reality head-mounted display device 100, the first heat dissipation structure 20 can be in the form of a closed loop, and the orthographic projection of the first heat dissipation structure 20 on the face can be arranged around the eyes, and the orthographic projection of the heat dissipation channel 21 on the face can be arranged around the eyes. For example, the orthographic projection of the first sub-channel 211 on the face is located above the eyes, and the orthographic projection of the second sub-channel 212 on the face is located below the eyes; for example, the orthographic projection of the second sub-channel 212 on the face is located above the eyes, and the orthographic projection of the first sub-channel 211 on the face is located below the eyes.

[0078] For example, the heat dissipation channel 21 includes a first sub-channel 211 corresponding to the upper side of the human eye and a second sub-channel 212 corresponding to the lower side of the human eye, which can dissipate heat and ventilate both the upper and lower parts of the human eye, thereby improving wearing comfort.

[0079] In some implementations, such as Figure 1 and Figure 4 As shown, the virtual reality head-mounted display device 100 also includes a buffer structure 30, which is connected to the host 10 and is located on the side of the display closer to the human eye. The buffer structure 30 includes a second housing 32 and a receiving cavity 31 formed by the second housing 32, and a first heat dissipation structure 20 is sleeved in the receiving cavity 31.

[0080] For example, the cushioning structure 30 can be a sponge. The cushioning structure 30 is connected to the part of the main unit 10 near the human eye. When the user wears it, the cushioning structure 30 directly contacts the human head and has the function of elastic cushioning.

[0081] For example, the first heat dissipation structure 20 is fitted inside the receiving cavity 31, that is, the buffer structure 30 wraps the first heat dissipation structure 20 to prevent the first heat dissipation structure 20 from directly contacting the user and causing discomfort to the user, and also to prevent the first heat dissipation structure 20 from being damaged.

[0082] For example, one of the first sub-channel 211 and the second sub-channel 212 is an air intake sub-channel and the other is an air exhaust sub-channel. Combined with the first heat dissipation structure 20, it is fitted into the receiving cavity 31. At this time, the buffer structure 30 also forms a closed ring shape. A part of the buffer structure 30 corresponds to the upper side of the human eye, and the other part of the buffer structure 30 corresponds to the lower side of the human eye.

[0083] For example, such as Figure 1 and Figure 4As shown, the buffer structure 30 includes a second housing 32 and a receiving cavity 31 formed by the second housing 32. The second housing 32 includes a first sub-heat dissipation part 32a and a second sub-heat dissipation part 32b. The first sub-heat dissipation part 32a is located on the side of the second sub-heat dissipation part 32b closer to the human eye. The first sub-heat dissipation part 32a wraps around the first sub-housing part 22a, and the second sub-heat dissipation part 32b wraps around the second sub-housing part 22b.

[0084] For example, such as Figure 4 As shown, Figure 4 This is a cross-sectional schematic diagram of the first heat dissipation structure 20 being housed within the buffer structure 30. Figure 4 The diagram illustrates that the surface portion of the buffer structure 30 near the outer side of the desktop (or computer screen) is the first sub-heat dissipation part 32a, and the surface portion of the buffer structure 30 near the inner side of the desktop (or computer screen) is the second sub-heat dissipation part 32b.

[0085] In some implementations, such as Figures 2 to 4 As shown, the virtual reality head-mounted display device 100 also includes a temperature sensor 50, which is disposed on the surface of the first heat dissipation structure 20.

[0086] For example, a temperature sensor 50 is disposed on the surface of the first heat dissipation structure 20. The temperature sensor 50 is configured to monitor the measured temperature T0 of the first heat dissipation structure 20 or the virtual reality head-mounted display device 100.

[0087] For example, the temperature sensor 50 and the first heat dissipation structure 20 can be disposed at opposite ends of the first heat dissipation structure 20. For instance, the temperature sensor 50 and the first heat dissipation structure 20 can be disposed at opposite ends of the first heat dissipation structure 20 in a direction parallel to the human eyes, so that the measured temperature monitored by the temperature sensor 50 is close to the average temperature of the first heat dissipation structure 20 or the virtual reality head-mounted display device 100, thereby improving the accuracy of temperature detection.

[0088] For example, in some embodiments, the temperature sensor 50 provides visual monitoring of the temperature at the buffer structure 30 of the virtual reality head-mounted display device 100, using materials such as metals, alloys, and metal oxides. The first heat dissipation structure 20 / first housing 22 utilizes high thermal conductivity to quickly remove heat generated at the base of the human eye; it is also lightweight and flexible, incorporating heat dissipation channels 21 and multiple heat dissipation micropores 221 / increasing the thermal contact surface and heat dissipation area; the first heat dissipation structure 20 / first housing 22 is made of polymer-based graphene composite material. Multiple heat dissipation micropores 221 / vents are distributed on the first heat dissipation structure 20, ensuring uniform gas temperature at the contact surface and reducing reverse heating of the contact surface by hot air. The heat dissipation channel 21 forms a closed transmission channel, maintaining a consistent structure at the human eye contact point, bringing in cool air and removing heat. The cooling fan 40 ventilation system typically employs a positive pressure design (blowing air into the cooling channel 21) or a slightly negative pressure design (removing moisture from the cooling channel 21), continuously introducing external cool air to reduce the humidity and carbon dioxide concentration inside the shroud. It utilizes materials such as plastics, metals, and semiconductors for heat conduction. The cooling channel 21, combined with multiple micro-holes 221, forms a ventilation channel, allowing fresh air to be introduced and hot air to be expelled.

[0089] For example, in some embodiments, the effects include: the high thermal conductivity material of the first heat dissipation structure 20 has the advantages of being lightweight, having high thermal conductivity, and being flexible; at the same time, it is combined with dense heat dissipation micropores 221 / pores for air cooling, which increases the heat dissipation area and ensures uniform heat dissipation at the eye contact area; air cooling circulation heat dissipation in the near-eye sealed space; release of humid and hot gas in the near-eye sealed space; temperature monitoring and regulation of the near-eye sealed space; the first heat dissipation structure 20 is extremely compact, with channels composed of microporous graphene material hidden inside the buffer structure 30 / sponge at the eye contact area, adapting to the millimeter-level space inside the virtual reality head-mounted display device 100.

[0090] Secondly, based on the same application concept, such as Figure 5 or Figure 6 As shown, and in combination Figure 7 As shown, this application embodiment also provides a heat dissipation method for a virtual reality head-mounted display device. The heat dissipation method for a virtual reality head-mounted display device can be applied to any of the virtual reality head-mounted display devices 100 described above. The heat dissipation method for a virtual reality head-mounted display device includes: providing a virtual reality head-mounted display device 100, which includes a temperature sensor 50 and a controller. The controller is configured to adjust the heat dissipation airflow of the cooling fan 40 according to the measured temperature T0 monitored by the temperature sensor 50.

[0091] For example, the controller can be a processor or a processing chip.

[0092] For example, the controller is configured to adjust the cooling airflow of the cooling fan 40 based on the measured temperature T0 monitored by the temperature sensor 50. The controller can control the cooling fan 40 to start working when the measured temperature T0 reaches a preset temperature; the controller can control the cooling fan 40 to increase the cooling airflow when the measured temperature T0 is high; and the controller can control the cooling fan 40 to decrease the cooling airflow when the measured temperature T0 is low.

[0093] In some implementations, such as Figure 5 and Figure 7 As shown, the heat dissipation method for a virtual reality head-mounted display device includes steps S101, S201, S301, and S401.

[0094] Step S101: Provide the virtual reality head-mounted display device, which includes a temperature sensor and a controller. The controller is configured to adjust the cooling airflow of the cooling fan based on the measured temperature monitored by the temperature sensor. The virtual reality head-mounted display device stores preset critical temperatures, which include a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, wherein the first sub-preset critical temperature, the second sub-preset critical temperature, and the third sub-preset critical temperature increase sequentially.

[0095] For example, the virtual reality head-mounted display device 100 stores preset critical temperatures, which include a first sub-preset critical temperature T1, a second sub-preset critical temperature T2, and a third sub-preset critical temperature T3, with the first sub-preset critical temperature T1, the second sub-preset critical temperature T2, and the third sub-preset critical temperature T3 increasing sequentially.

[0096] For example, the first sub-preset critical temperature T1, the second sub-preset critical temperature T2, and the third sub-preset critical temperature T3 can be 26 respectively. o C, 32 o C, 36 o C.

[0097] Step S201: Obtain the measured temperature monitored by the temperature sensor.

[0098] For example, the measured temperature T0 monitored by temperature sensor 50 is obtained.

[0099] Step S301: Compare the measured temperature with the preset critical temperature.

[0100] For example, the measured temperature T0 is compared with a preset critical temperature. The measured temperature T0 is compared with the first sub-preset critical temperature T1 and the second sub-preset critical temperature T2 respectively; the measured temperature T0 is compared with the second sub-preset critical temperature T2 and the third sub-preset critical temperature T3 respectively; the measured temperature T0 is compared with the third sub-preset critical temperature T3.

[0101] Step S401, wherein, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, the controller controls the cooling fan to output a first airflow for cooling; under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, the controller controls the cooling fan to output a second airflow for cooling; under the condition that the measured temperature is greater than the third sub-preset critical temperature, the controller controls the cooling fan to output a third airflow for cooling; the cooling airflow of the first airflow, the second airflow, and the third airflow increases sequentially.

[0102] For example, when the measured temperature T0 is greater than the first sub-preset critical temperature T1 and less than the second sub-preset critical temperature T2, the controller controls the cooling fan 40 to output a first airflow for cooling; when the measured temperature T0 is greater than the second sub-preset critical temperature T2 and less than the third sub-preset critical temperature T3, the controller controls the cooling fan 40 to output a second airflow for cooling; when the measured temperature T0 is greater than the third sub-preset critical temperature T3, the controller controls the cooling fan 40 to output a third airflow for cooling; the cooling airflow of the first airflow, the second airflow, and the third airflow increases sequentially.

[0103] For example, by adjusting the airflow of the cooling fan 40 based on the measured temperature T0 detected by the temperature sensor 50, the cooling demand can be met, and energy consumption can be saved and battery life can be improved.

[0104] In some implementations, such as Figure 6 and Figure 7 As shown, the heat dissipation method for a virtual reality head-mounted display device includes steps S102, S202, S302, and S402.

[0105] Step S102: Provide the virtual reality head-mounted display device, which includes a temperature sensor and a controller. The controller is configured to adjust the cooling airflow of the cooling fan based on the measured temperature monitored by the temperature sensor. The virtual reality head-mounted display device stores a preset differential temperature and a preset critical temperature. The preset critical temperature includes a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, which increase sequentially. The preset differential temperature is 0.8. o C-1.2 o C.

[0106] For example, the virtual reality head-mounted display device 100 stores a preset differential temperature ΔT0 and a preset critical temperature. The preset critical temperature includes a first sub-preset critical temperature T1, a second sub-preset critical temperature T2, and a third sub-preset critical temperature T3, which increase sequentially. The preset differential temperature ΔT0 is 0.8. o C-1.2 o C.

[0107] Step S202: Obtain the measured temperature monitored by the temperature sensor.

[0108] For example, the measured temperature T0 monitored by temperature sensor 50 is obtained.

[0109] Step S302: Compare the measured temperature with the preset critical temperature, and compare the difference between the measured temperature and the preset critical temperature with the preset difference temperature ΔT0.

[0110] For example, the measured temperature T0 is compared with the preset critical temperature, and the difference between the measured temperature T0 and the preset critical temperature is compared with the preset difference temperature ΔT0.

[0111] In step S402, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, and under the condition that the difference between the measured temperature and the first sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a first airflow for cooling air; under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the second sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a second airflow for cooling air; under the condition that the measured temperature is greater than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the third sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a third airflow for cooling air; the cooling airflow of the first airflow, the second airflow, and the third airflow increases sequentially.

[0112] For example, under the condition that the measured temperature T0 is greater than the first sub-preset critical temperature T1 and less than the second sub-preset critical temperature T2, and the difference between the measured temperature T0 and the first sub-preset critical temperature T1 (e.g.) Figure 7 Under the condition that the first sub-difference value ΔT1 shown is greater than the preset difference temperature ΔT0, the controller controls the cooling fan 40 to output a cooling airflow of the first air volume; under the condition that the measured temperature T0 is greater than the second sub-preset critical temperature T2 and less than the third sub-preset critical temperature T3, and the difference between the measured temperature T0 and the second sub-preset critical temperature T2 (as shown) is greater than the preset difference temperature ΔT0, the controller controls the cooling fan 40 to output a cooling airflow of the first air volume; Figure 7 Under the condition that the second sub-difference value ΔT2 shown is greater than the preset difference temperature ΔT0, the controller controls the cooling fan 40 to output a second airflow for cooling; under the condition that the measured temperature T0 is greater than the third sub-preset critical temperature T3, and the difference between the measured temperature T0 and the third sub-preset critical temperature T3 (such as...) Figure 7 When the third sub-difference value ΔT3 shown is greater than the preset difference temperature ΔT0, the controller controls the cooling fan 40 to output the cooling airflow of the third air volume; the cooling airflow of the first air volume, the second air volume and the third air volume increase in sequence.

[0113] For example, Figure 6 Examples and Figure 5 In comparison, step S102 differs from step S101. In step S102, the virtual reality head-mounted display device 100 also stores a preset differential temperature ΔT0, for example, the preset differential temperature ΔT0 can be 1. o C.

[0114] For example, Figure 6 Examples and Figure 5For example, steps S302 and S301 are different, and steps S402 and S401 are also different. In step S302 or step S402, during the comparison and execution of each comparison condition, it is also necessary to compare the difference between the measured temperature T0 and the preset critical temperature with the preset difference temperature ΔT0.

[0115] For example, such as Figure 6 As shown, the current measured temperature T0 is near the preset critical temperature. Under slight influences, the measured temperature T0 will fluctuate near the preset critical temperature, for example, to 32.1. o C, 31.9 o C, which can cause the fan speed control of the cooling fan 40 to frequently jump / switch, easily leading to damage to components in the virtual reality head-mounted display device 100. Therefore, by setting the difference between the measured temperature T0 and the preset critical temperature to be compared with the preset difference temperature ΔT0, the stability of the fan speed control of the cooling fan 40 can be ensured.

[0116] For example, Figure 6 The example of a heat dissipation method for a virtual reality head-mounted display device can be used in... Figure 5 The example of a cooling method for a virtual reality headset is executed afterward. For example, it is executed before the cooling fan 40 is started. Figure 5 The example of a heat dissipation method for a virtual reality head-mounted display device employs a cooling fan 40 that is already operating or continuously operating. Figure 6 The example of a heat dissipation method for a virtual reality head-mounted display device avoids frequent fluctuations / switches in the fan speed control of the cooling fan 40.

[0117] For example, such as Figure 5 or Figure 6 As shown, and in combination Figure 7 As shown, step S201 / S301, or step S203 / S302, involves acquiring the measured temperature T0 using a temperature sensor. Step S401, or S402, involves the controller processing / comparing the data. Then, the controller outputs a command: it sends a PWM signal (pulse width modulation) to the cooling fan. For example, the pulse width corresponding to the first airflow is 30%, the second airflow is 60%, and the third airflow is 90%, to achieve different levels of cooling airflow. Next, the cooling fan 40 executes a command: it exhausts air, simultaneously using both supply and exhaust modes for airflow temperature control. Finally, the temperature sensor monitors the temperature again, and the result is determined: air cooling, with the temperature sensor monitoring the temperature in real time.

[0118] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0119] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A virtual reality head-mounted display device, characterized in that, include: The host computer, including the monitor; A first heat dissipation structure is disposed on the side of the display closer to the human eye. The first heat dissipation structure includes a first housing and an annular heat dissipation channel formed by the first housing. The first heat dissipation structure includes a first opening communicating with the heat dissipation channel. A cooling fan is disposed on the outside of the first heat dissipation structure and communicates with the first opening. The cooling fan includes a supply mode for supplying air to the heat dissipation channel and / or a suction mode for exhausting air from the heat dissipation channel. The first heat dissipation structure includes a plurality of heat dissipation micropores distributed in the first housing and penetrating the first housing.

2. The virtual reality head-mounted display device according to claim 1, characterized in that, The material of the first heat dissipation structure includes a polymer-based graphene composite material.

3. The virtual reality head-mounted display device according to claim 1, characterized in that, The first housing includes a first sub-housing portion and a second sub-housing portion, wherein the first sub-housing portion is located on the side of the second sub-housing portion closer to the human eye; At least a portion of the heat dissipation micropores are located in the first sub-shell portion.

4. The virtual reality head-mounted display device according to claim 3, characterized in that, The multiple heat dissipation micropores are evenly distributed in various parts of the first housing.

5. The virtual reality head-mounted display device according to claim 1, characterized in that, The cooling fan includes an air delivery mode that delivers air to the cooling channel; The heat dissipation channel includes a first sub-channel corresponding to the upper side of the human eye and a second sub-channel corresponding to the lower side of the human eye. One of the first sub-channel and the second sub-channel is an air intake sub-channel, and the other is an air exhaust sub-channel.

6. The virtual reality head-mounted display device according to claim 2, characterized in that, Also includes: A buffer structure is connected to the host and disposed on the side of the display near the human eye. The buffer structure includes a second housing and a receiving cavity formed by the second housing. The first heat dissipation structure is sleeved in the receiving cavity.

7. The virtual reality head-mounted display device according to claim 1, characterized in that, Also includes: A temperature sensor is disposed on the surface of the first heat dissipation structure.

8. A heat dissipation method for a virtual reality head-mounted display device, characterized in that, The virtual reality head-mounted display device as described in any one of claims 1 to 7 comprises: The virtual reality head-mounted display device is provided, the virtual reality head-mounted display device includes a temperature sensor and a controller, the controller being configured to adjust the cooling airflow of the cooling fan according to the measured temperature monitored by the temperature sensor.

9. The heat dissipation method for a virtual reality head-mounted display device according to claim 8, characterized in that, The virtual reality head-mounted display device stores a preset critical temperature, which includes a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, wherein the first sub-preset critical temperature, the second sub-preset critical temperature, and the third sub-preset critical temperature increase sequentially; the step of adjusting the cooling airflow of the cooling fan according to the measured temperature monitored by the temperature sensor includes: Obtain the measured temperature monitored by the temperature sensor; Compare the measured temperature with the preset critical temperature; Wherein, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, the controller controls the cooling fan to output a first airflow for cooling. Under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, the controller controls the cooling fan to output a second airflow for cooling. When the measured temperature is greater than the third preset critical temperature, the controller controls the cooling fan to output a third airflow for cooling. The heat dissipation air volume increases sequentially for the first air volume, the second air volume, and the third air volume.

10. The heat dissipation method for a virtual reality head-mounted display device according to claim 8, characterized in that, The virtual reality head-mounted display device stores a preset differential temperature and a preset critical temperature. The preset critical temperature includes a first sub-preset critical temperature, a second sub-preset critical temperature, and a third sub-preset critical temperature, which increase sequentially. The preset differential temperature is 0.

8. o C-1.2 o C; The step of adjusting the cooling airflow of the cooling fan based on the measured temperature monitored by the temperature sensor includes: Obtain the measured temperature monitored by the temperature sensor; The measured temperature is compared with the preset critical temperature, and the difference between the measured temperature and the preset critical temperature is compared with the preset difference temperature. Wherein, under the condition that the measured temperature is greater than the first sub-preset critical temperature and less than the second sub-preset critical temperature, and under the condition that the difference between the measured temperature and the first sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a first airflow for cooling. Under the condition that the measured temperature is greater than the second sub-preset critical temperature and less than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the second sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a second airflow for cooling. Under the condition that the measured temperature is greater than the third sub-preset critical temperature, and under the condition that the difference between the measured temperature and the third sub-preset critical temperature is greater than the preset difference temperature, the controller controls the cooling fan to output a third airflow for cooling. The heat dissipation air volume increases sequentially for the first air volume, the second air volume, and the third air volume.

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