A head-mounted display device

Abstract

The application provides a head-mounted display device, and relates to the technical field of display devices. The head-mounted display device can make the heat dissipation airflow flow to an area away from the user's head, which is beneficial to reducing the influence of the heat dissipation airflow on the user. Meanwhile, through the design of the heat dissipation structure, the heat dissipation effect is improved. The head-mounted display device comprises a shell, a heating device, a first heat dissipation member and a heat dissipation channel. The shell has a containing cavity, an air outlet and an air inlet, and the air outlet and the air inlet are both in communication with the containing cavity. The heating device is installed in the containing cavity. The first heat dissipation member is installed in the containing cavity and is used for dissipating heat of the heating device to form a heat dissipation airflow. The heat dissipation channel is located between the first heat dissipation member and the shell. The heat dissipation airflow is discharged along the heat dissipation channel and the air outlet, so that a heat dissipation space formed outside the shell by the heat dissipation airflow does not overlap with the user's head area. The head-mounted display device of the application is used for displaying images to the user.

Description

Technical Field

[0001] This application relates to the field of display device technology, and more particularly to a head-mounted display device. Background Technology

[0002] Virtual Reality (VR) technology combines the virtual and real worlds and presents them to the user. VR is a computer simulation system that can create and allow users to experience virtual worlds. It uses computers to generate a simulated environment that immerses the user. Augmented Reality (AR) technology is a newer technology that integrates information from the real world and the virtual world. It uses computers and other devices to calculate in real time information such as position and angle captured by cameras in the real world, and then overlays virtual information onto the real world to enhance our perception of reality.

[0003] Users typically use head-mounted displays to view realistic images generated by VR or AR technologies. However, during operation, the chips, displays, and circuit boards within these head-mounted displays generate significant heat. To ensure proper functioning, heat dissipation structures are usually incorporated within the displays. However, in some technologies, the hot air blown out to cool the head-mounted displays can easily blow onto the user's forehead, potentially causing discomfort. Utility Model Content

[0004] This application provides a head-mounted display device that directs heat dissipation airflow away from the user's head, thereby reducing the impact of the heat dissipation airflow on the user. At the same time, the heat dissipation effect is improved through the design of the heat dissipation structure.

[0005] This application is achieved through the following technical solution.

[0006] The head-mounted display device provided in this application includes: a housing, a heating element, a first heat sink, and a heat dissipation channel; wherein, the housing has a receiving cavity, an air outlet, and an air inlet, and the air outlet and air inlet are both connected to the receiving cavity; the heating element is installed in the receiving cavity; the first heat sink is installed in the receiving cavity to dissipate heat from the heating element and form a heat dissipation airflow; the heat dissipation channel is located between the first heat sink and the housing; the heat dissipation airflow is discharged along the heat dissipation channel and the air outlet, so that the heat dissipation space formed by the heat dissipation airflow outside the housing does not overlap with the user's head area.

[0007] The head-mounted display device provided in this application has a receiving cavity formed within the housing, through which other components of the head-mounted display device can be installed. An air inlet and an air outlet, both connected to the receiving cavity, are provided on the housing, allowing air within the receiving cavity to flow and exchange with the air outside the housing. Furthermore, a first heat sink is provided within the receiving cavity to dissipate heat from heat-generating components, improving the heat exchange efficiency between the heat-generating components and the air, thereby enhancing the efficiency of heat dissipation and cooling. Simultaneously, a heat dissipation channel is provided between the housing and the first heat sink, connecting the heat dissipation channel to the air outlet. This heat dissipation channel and air outlet guide the flow path of the cooling airflow through the first heat sink relative to the housing, ensuring that the cooling airflow, after leaving the housing, moves away from the user's head, and that the airflow area does not contact the user's head area, thus preventing the heat dissipation space formed outside the housing from overlapping with the user's head area. Therefore, the head-mounted display device provided in this application can reduce the impact of cooling airflow on the user.

[0008] In one possible implementation of this application, the head-mounted display device further includes a cover disposed between the housing and the first heat sink. The cover and the first heat sink together form a heat dissipation channel. The channel outlet of the heat dissipation channel faces the air outlet, and the cooling airflow enters the heat dissipation channel from the channel inlet.

[0009] The technical solution of this application, by providing a cover between the housing and the first heat sink, allows the cover to be connected to the first heat sink, thus forming a heat dissipation channel through the enclosure of the cover and the first heat sink. This helps to reduce the contact between the heat dissipation airflow and the housing, thereby reducing the temperature change of the housing and the deformation caused by thermal expansion. This helps to maintain the stability of the head-mounted display device and reduces the risk of user discomfort due to excessive heat in the housing. Simultaneously, by orienting the outlet of the heat dissipation channel towards the air outlet on the housing, the heat dissipation airflow can directly enter the air outlet after passing through the heat dissipation channel and exit the housing from the air outlet. This improves the efficiency of heat dissipation airflow exiting the housing cavity, thereby improving the heat dissipation efficiency of the heat-generating components.

[0010] In one possible implementation of this application, the first heat sink includes heat sink fins, having at least two fins, with an airflow channel formed between adjacent fins; the heat sink fins extend continuously along the heat dissipation surface of the first heat sink between the channel inlet and the channel outlet.

[0011] The technical solution of this application, by providing at least two heat dissipation fins on the heat dissipation surface of the first heat sink, not only increases the surface area within the heat dissipation channel but also divides the heat dissipation channel into multiple air ducts through the heat dissipation device. This allows the heat dissipation airflow to flow within multiple air ducts, thereby improving the heat exchange efficiency between the heat dissipation airflow and the first heat sink and reducing the turbulence generated by the heat dissipation airflow, thus reducing the noise generated during the heat dissipation airflow. Furthermore, by continuously extending the heat dissipation fins between the channel inlet and outlet, the extension direction of the heat dissipation fins can be changed so that the channel inlet and outlet face different directions, facilitating the placement of the air outlet and inlet on the housing.

[0012] In one possible implementation of this application, there is an interconnection structure between two adjacent air ducts, and the two adjacent air ducts are connected by the interconnection structure.

[0013] The technical solution of this application has an interconnected structure between two adjacent air ducts. During the flow of heat dissipation airflow through the air ducts, if the flow velocity and flow rate of heat dissipation airflow in the two adjacent air ducts are different, the heat dissipation airflow in the air duct with higher air pressure can flow to the adjacent air duct with lower air pressure through the interconnected structure. This can keep the air pressure in each air duct basically balanced and promote more uniform contact between airflow and heat in the heat dissipation channel, resulting in better heat dissipation effect.

[0014] In one possible implementation of this application, heat dissipation fins extend from the heat dissipation surface of the first heat dissipation member in a direction away from the heat dissipation surface. The upper end of the heat dissipation fins includes a protrusion and a recess, which extend along the length of the heat dissipation fins. The protrusion is formed at the end of the heat dissipation fin located at the channel inlet, and the recess extends from the protrusion to the channel outlet, forming an interconnected structure.

[0015] The technical solution of this application has a protrusion and a recess at the upper end of the heat dissipation fins. After the cover is abutted against the protrusion of the heat dissipation fins to form a heat dissipation channel, the recess of the heat dissipation fins cannot abut against the cover. This allows two adjacent air channels to be connected through the recess, thereby forming an interconnected structure between two adjacent air channels.

[0016] In one possible implementation of this application, the channel outlet has a guide structure for guiding the cooling airflow toward the outlet.

[0017] The technical solution of this application has a guide structure at the channel outlet, which can guide the heat dissipation airflow through the heat dissipation channel to the air outlet on the shell, so that the heat dissipation airflow can be discharged from the air outlet to the outside of the shell quickly, smoothly and as completely as possible.

[0018] In one possible implementation of this application, the guide structure includes a cover guide surface and a heat dissipation guide surface; the cover has a cover outlet corresponding to the air outlet, the cover guide surface extends from the edge of the cover outlet on the cover towards the air outlet, and the cover guide surface surrounds the cover outlet; the heat dissipation guide surface extends from the edge of the heat dissipation surface of the first heat dissipation element towards the air outlet.

[0019] The technical solution of this application, by providing a heat dissipation guide surface on the first heat sink, guides the heat dissipation airflow towards the air outlet. Furthermore, a cover outlet is provided on the cover, allowing the heat dissipation airflow, whose flow direction has been altered under the guidance of the heat dissipation guide surface, to flow out of the heat dissipation channel from the cover outlet. Simultaneously, an annular cover guide surface extending towards the air outlet is provided at the edge of the cover outlet. This cover guide surface completely restricts and guides the heat dissipation airflow to the air outlet on the housing, which is beneficial for improving the exhaust efficiency of the heat dissipation airflow and for limiting the direction and range of the heat dissipation airflow exiting the housing.

[0020] In one possible implementation of this application, the head-mounted display device further includes an aerodynamic device installed within the housing cavity and located between the air inlet and the channel inlet, for generating a cooling airflow through the cooling channel.

[0021] The technical solution of this application, by providing an aerodynamic device in the housing cavity and placing the aerodynamic device between the air inlet and the channel inlet, can not only increase the exchange speed of air between the housing cavity and the outside of the housing, but also form a cooling airflow through the heat dissipation channel and increase the flow rate of the cooling airflow, which is beneficial to improving the heat dissipation and cooling efficiency of the head-mounted display device.

[0022] In one possible implementation of this application, a silencer is provided at the bottom of the aerodynamic device to reduce the noise generated by the aerodynamic device.

[0023] The technical solution of this application has a sound-absorbing component at the bottom of the aerodynamic device. Under the action of the sound-absorbing component, the noise generated by the aerodynamic device can be absorbed and reflected, which helps to reduce the noise generated by the head-mounted display device during operation.

[0024] In one possible implementation of this application, the head-mounted display device further includes a temperature sensor connected to a heating element. Both the temperature sensor and the aerodynamic device are electrically connected to the controller of the head-mounted display device. The temperature sensor is used to detect the real-time temperature of the heating element, and the controller is used to control the rotation speed of the aerodynamic device and / or the power consumption of the head-mounted display device based on the real-time temperature.

[0025] The technical solution of this application incorporates a temperature sensor for the heat-generating components in the head-mounted display device, allowing for the acquisition of the real-time temperature of these components. By electrically connecting both the temperature sensor and the aerodynamic device to a controller, the rotational speed of the aerodynamic device can be controlled based on the acquired real-time temperature of the heat-generating components, thereby controlling the flow rate of the cooling airflow. This ensures that the hot airflow is promptly and accurately expelled from the housing. Furthermore, the power consumption of the head-mounted display device can be controlled based on the real-time temperature of the heat-generating components, which helps reduce the heat generated by these components and maintains the temperature within the housing cavity within a reasonable range.

[0026] In one possible implementation of this application, at least one air inlet is provided at each end of the housing along the width direction of the head-mounted display device, and the aerodynamic device is located in the housing cavity near any one of the air inlets.

[0027] The technical solution of this application, by providing at least one air inlet at each end of the housing, can increase the speed at which air from outside the housing enters the receiving cavity, thereby increasing the air intake volume. Simultaneously, placing the aerodynamic device close to any one of the air inlets not only allows cooler air from outside the housing to quickly enter the aerodynamic device and be rapidly delivered into the heat dissipation channel, but also ensures a more uniform distribution of air entering from inlets farther from the aerodynamic device within the receiving cavity. This improves the heat exchange efficiency of the air within the receiving cavity, which is beneficial for enhancing the heat dissipation and cooling efficiency of heat-generating devices.

[0028] In one possible implementation of this application, the area on the heat dissipation surface of the first heat sink outside the heat dissipation channel also has heat-conducting fins.

[0029] The technical solution of this application provides heat-conducting fins on the heat dissipation surface of the first heat sink. These fins increase the surface area of ​​the first heat sink, thereby increasing the contact area between the first heat sink and the air inside the cavity, thus improving the heat dissipation and cooling efficiency of the first heat sink, which in turn improves the heat dissipation and cooling efficiency of the heat-generating device.

[0030] In one possible implementation of this application, the housing includes a front housing and a rear housing, with the air outlet located above the horizontal central axis of the front housing and symmetrically arranged on the vertical central axis of the front housing, wherein the front housing is farther away from the wearing surface relative to the rear housing.

[0031] The technical solution of this application, by setting the housing into a structure including a front housing and a rear housing, facilitates the processing of the housing and the assembly of the components installed in the front and rear housings. Furthermore, placing the air outlet above the horizontal central axis of the front housing, while simultaneously positioning it on the vertical central axis of the front housing, allows the air outlet to be located away from the wearing surface of the head-mounted display device. This keeps the heat dissipation space created by the airflow away from the user's head area, reducing the impact of the airflow on the user. Additionally, the sufficient length of the heat dissipation channel increases the contact time between the airflow and the heat sink fins, thereby improving the heat dissipation and cooling efficiency of the heat-generating components.

[0032] In one possible implementation of this application, the air outlet and / or air inlet are provided with a mesh.

[0033] The technical solution of this application has mesh elements on the air outlet and air inlet of the housing, which can allow airflow to be discharged to the outside of the housing or enter the receiving cavity through the mesh elements. The mesh elements can also block foreign objects from entering the receiving cavity, which helps to reduce the risk of foreign objects damaging the devices inside the head-mounted display device.

[0034] In one possible implementation of this application, the head-mounted display device further includes a display component located within a receiving cavity, and a second heat sink is disposed on the display component.

[0035] The technical solution of this application includes a display component in the head-mounted display device, through which images, videos, etc., can be output. Simultaneously, a second heat sink is provided on the display component, which improves the heat exchange efficiency between the display component and the air inside the housing, thereby enhancing the heat dissipation and cooling efficiency of the display component. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

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

[0038] Figure 2 This is a cross-sectional structural diagram of the head-mounted display device provided in this application;

[0039] Figure 3 This is a partial cross-sectional view of the head-mounted display device provided in this application;

[0040] Figure 4 Provided for this application Figure 3 A magnified schematic diagram of the central part of the structure;

[0041] Figure 5 A schematic diagram of the structure of the first heat sink and the cover in the head-mounted display device provided in this application;

[0042] Figure 6 A schematic diagram of the structure of the first heat sink in the head-mounted display device provided in this application;

[0043] Figure 7 A cross-sectional view of the first heat sink in the head-mounted display device provided in this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1-Housing shell; 11-Receiving cavity; 12-Air inlet; 13-Air outlet; 14-Front housing; 15-Rear housing; 2-Heating device; 21-Circuit board; 3-First heat sink; 31-Heat sink fins; 311-Protrusion; 312-Recess; 32-Heat sink surface; 33-Interconnection structure; 34-Heat sink guide surface; 35-Air duct; 36-Heat conduction fins; 4-Heat sink channel; 41-Channel inlet; 42-Channel outlet; 5-Cover; 51-Cover outlet; 52-Cover guide surface; 6-Aerodynamic device; 7-Silencing component; 8-Mesh component; 9-Display component; 10-Second heat sink; L-Horizontal central axis; H-Height direction; V-Vertical central axis; W-Width direction. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0047] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0048] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0049] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0050] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0051] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0052] Display technology utilizes electronic technology to provide flexible visual information. With the continuous development of display technology, flying goggles, video goggles, smart glasses, virtual reality (VR) glasses, and augmented reality (AR) glasses are increasingly being used. These glasses generate heat during use, requiring heat dissipation and cooling of the internal components. In related technologies, the air inlets and outlets on the goggles are typically located at the bottom or top of the shell. This can easily cause hot air from the outlets to blow onto the user's forehead, causing discomfort and affecting the user experience.

[0053] Based on this, embodiments of this application provide a head-mounted display device that can reduce the impact of heat dissipation airflow on the user. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 This paper shows a front view structural diagram of the head-mounted display device provided in this application. Figure 2 A cross-sectional view of the head-mounted display device provided in this application is shown. Figure 3 This paper shows a partial cross-sectional view of the head-mounted display device provided in this application. Figure 4 This application provides Figure 3 A magnified view of the structure in the upper right corner. Figure 5 A schematic diagram of the structure of the first heat sink and the cover in the head-mounted display device provided in this application is shown.

[0054] The head-mounted display device provided in this application includes: a housing 1, a heating element 2, a first heat sink 3, and a heat dissipation channel 4; wherein, the housing 1 has a receiving cavity 11, an air outlet 13, and an air inlet 12, and the air outlet 13 and the air inlet 12 are both connected to the receiving cavity 11; the heating element 2 is installed in the receiving cavity 11; the first heat sink 3 is installed in the receiving cavity 11 to dissipate heat from the heating element 2 and form a heat dissipation airflow; the heat dissipation channel 4 is located between the first heat sink 3 and the housing 1; the heat dissipation airflow is discharged along the heat dissipation channel 4 and the air outlet 13 so that the heat dissipation space formed by the heat dissipation airflow outside the housing 1 does not overlap with the user's head area.

[0055] In this embodiment, the housing 1 can provide mounting points and protection for other components in the head-mounted display device. For example... Figure 1 and Figure 2 As shown, the housing 1 can be configured as a cavity structure, and the cavity formed by the housing 1 can be used as a receiving cavity 11, in which the components of the head-mounted display device are installed.

[0056] For example, such as Figure 1 and Figure 2 As shown, an air inlet 12 and an air outlet 13 can be provided on the wall of the housing 1, and both the air inlet 12 and the air outlet 13 are connected to the receiving cavity 11 formed by the housing 1, so that the air inside the receiving cavity 11 and the air outside the housing 1 can flow and exchange through the air inlet 12 and the air outlet 13. For example, along the width direction W of the housing 1, air inlets 12 can be provided on both sides of the housing 1, or air inlets 12 can be provided on one side of the housing 1; or, along the height direction H of the housing 1, air inlets 12 can be provided on the lower side of the housing 1. The air outlet 13 can be provided in the area near the upper side of the housing 1.

[0057] In the embodiments of this application, such as Figure 2 and Figure 3 As shown, the heating element 2 in the head-mounted display device is a device that generates heat during the operation of the head-mounted display device. For example, the heating element 2 can be the central processing unit (CPU) in the head-mounted display device, the display device, or the circuit board 21, etc. When current flows through the heating element 2, the heating element 2 generates heat, causing its own temperature to rise, and also raising the temperature of the air surrounding the heating element 2.

[0058] In the embodiments of this application, such as Figure 3and Figure 4 As shown, a first heat sink 3 can be provided in the head-mounted display device to accelerate the heat exchange efficiency between the heating device 2 and the air. The first heat sink 3 can be made of a material with high thermal conductivity, such as copper, aluminum, and alloys. The first heat sink 3 can be installed in the receiving cavity 11 inside the housing 1. For example, the first heat sink 3 can be in contact with the heating device 2 to increase the heat dissipation area of ​​the heating device 2. In this way, the air flowing in the receiving cavity 11 through the air inlet 12 and the air outlet 13 can absorb the heat from the first heat sink 3 as it flows through it, forming a high-temperature cooling airflow. The cooling airflow flows to the outside of the housing 1 through the air outlet 13, while the cooler air outside the housing 1 re-enters the receiving cavity 11 through the air inlet 12, so that the temperature inside the receiving cavity 11 is maintained within a suitable range.

[0059] In the embodiments of this application, such as Figure 5 As shown, a heat dissipation channel 4 can be provided between the housing 1 and the first heat sink 3 to guide the flow direction of the heat dissipation airflow in the receiving cavity 11, so that the heat dissipation airflow flows to the outside of the housing 1 along a preset path. For example, the channel outlet 42 of the heat dissipation channel 4 can be connected to the air outlet 13 on the housing 1. By setting the tilt angle and position of the heat dissipation channel 4 relative to the housing 1, the heat dissipation airflow can flow to the outside of the housing 1 through the heat dissipation channel 4 and the air outlet 13. After the heat dissipation airflow flows out from the air outlet 13, a heat dissipation space can be formed near the air outlet 13. This heat dissipation space can be oriented away from the user's head, which can reduce the possibility of the heat dissipation airflow contacting the user's head, thereby reducing the impact of the heat dissipation airflow located in the heat dissipation space on the user.

[0060] The head-mounted display device provided in this application embodiment has a receiving cavity 11 formed within the housing 1, through which other components of the head-mounted display device can be installed. An air inlet 12 and an air outlet 13, both connected to the receiving cavity 11, are provided on the housing 1, allowing air within the receiving cavity 11 to flow and exchange with air outside the housing 1. Furthermore, a first heat sink 3 is provided within the receiving cavity 11 to dissipate heat from the heat-generating device 2, improving the heat exchange efficiency between the heat-generating device 2 and the air, thereby enhancing the efficiency of heat dissipation and cooling of the heat-generating device 2. Simultaneously, a heat dissipation channel 4 is provided between the housing 1 and the first heat sink 3, and the heat dissipation channel 4 is connected to the air outlet 13. The heat dissipation channel 4 and the air outlet 13 guide the flow path of the cooling airflow passing through the first heat sink 3 relative to the housing 1, ensuring that the cooling airflow, after leaving the housing, moves away from the user's head, and the airflow range does not contact the user's head area, thus preventing the heat dissipation space formed outside the housing 1 from overlapping with the user's head area. Therefore, the head-mounted display device provided in this application embodiment can direct the heat dissipation airflow to an area away from the user's head, which helps to reduce the impact of the heat dissipation airflow on the user.

[0061] In addition to reducing the impact of the heat dissipation airflow of the head-mounted display device on the user through the above-mentioned structure, other structural components or structures can be flexibly set to improve the heat dissipation efficiency of the head-mounted display device, etc. The following description is in conjunction with the embodiments and accompanying drawings.

[0062] In some possible embodiments of this application, see Figure 1. Figure 6 , Figure 6 A schematic diagram of the structure of the first heat sink 3 in the head-mounted display device provided in this application is shown. The head-mounted display device also includes a cover 5, which is disposed between the housing 1 and the first heat sink 3. The cover 5 and the first heat sink 3 enclose a heat dissipation channel 4. The channel outlet 42 of the heat dissipation channel 4 faces the air outlet 13, and the heat dissipation airflow enters the heat dissipation channel 4 from the channel inlet 41.

[0063] In the embodiments of this application, such as Figure 4 and Figure 5 As shown, a cover 5 can be provided in the head-mounted display device, and the cover 5 can be positioned between the housing 1 and the first heat sink 3, such as positioning the cover 5 on the side of the first heat sink 3 away from the heat-generating device 2. The structure of the cover 5 and the first heat sink 3 can be designed to form a heat dissipation channel 4 through the enclosure of the cover 5 and the first heat sink 3.

[0064] For example, such as Figure 5 As shown, the cover 5 can be set in an approximately flat plate shape, so that the cover 5 can be placed on the heat dissipation surface 32 of the first heat sink 3, thereby forming a heat dissipation channel 4 by the cover 5 and the heat dissipation surface 32.

[0065] In another example, a channel inlet 41 can be provided at one end of the heat dissipation channel 4, and a channel outlet 42 can be provided at the end of the heat dissipation channel 4 away from the channel inlet 41, so that the heat dissipation airflow can enter the heat dissipation channel 4 from the channel inlet 41 and flow out from the channel outlet 42. For example, an opening formed by one end of a nearly flat cover 5 and the heat dissipation surface 32 can be used as the channel inlet 41. The edge of the other end of the cover 5 can be extended towards the heat dissipation surface 32 and abut against the heat dissipation surface 32, and a through hole can be provided on the surface near the other end of the cover 5. This through hole communicates with the heat dissipation channel 4, and the through hole can be directed toward the air outlet 13 on the housing 1. Then, this through hole (such as the area enclosed by the through hole) can be used as the channel outlet 42.

[0066] In the above embodiment, since a cover 5 is provided between the housing 1 and the first heat sink 3, the cover 5 can be connected to the first heat sink 3 to form a heat dissipation channel 4 by the cover 5 and the first heat sink 3. This helps to reduce the contact between the heat dissipation airflow and the housing 1, thereby reducing the temperature change of the housing 1 and the deformation of the housing 1 due to thermal expansion. This helps to maintain a stable structure for the head-mounted display device and reduces the risk of user discomfort due to excessive heat in the housing. At the same time, by orienting the outlet 42 of the heat dissipation channel 4 toward the air outlet 13 on the housing 1, the heat dissipation airflow can flow through the heat dissipation channel 4 and directly enter the air outlet 13 and be discharged from the housing 1 from the air outlet 13. This improves the efficiency of the heat dissipation airflow discharged from the receiving cavity 11, thereby improving the heat dissipation efficiency of the heat-generating device 2.

[0067] In some possible embodiments of this application, please continue to refer to Figure 6 The first heat sink 3 includes heat sink fins 31, which have at least two fins, and an air duct 35 is formed between adjacent heat sink fins 31; the heat sink fins 31 extend continuously along the heat dissipation surface 32 of the first heat sink 3 between the channel inlet 41 and the channel outlet 42.

[0068] In the embodiments of this application, such as Figure 6 As shown, multiple heat dissipation fins 31 can be provided on the first heat dissipation component 3 to increase the surface area of ​​the first heat dissipation component 3 and form an air duct 35 on the first heat dissipation component 3 to guide the flow of heat dissipation airflow.

[0069] For example, multiple heat dissipation fins 31 can be provided on the heat dissipation surface 32 of the first heat sink 3 on the side away from the heat-generating device 2. The multiple heat dissipation fins 31 are arranged sequentially, with a certain gap between two adjacent heat dissipation fins 31, such as 11 heat dissipation fins 31 provided on the heat dissipation surface 32. The multiple heat dissipation fins 31 can divide the heat dissipation channel 4 into multiple air ducts 35, that is, an air duct 35 is formed between two adjacent heat dissipation fins 31. One end of each heat dissipation fin 31 can be located at the channel inlet 41, and the other end can be located at the channel outlet 42. For example, the heat dissipation fins 31 can be formed by extending from the heat dissipation surface 32 in a direction away from the center of the first heat sink 3, and the heat dissipation fins 31 can be perpendicular to the heat dissipation surface 32, that is, the heat dissipation fins 31 are perpendicular to or nearly perpendicular to the heat dissipation surface 32.

[0070] Another example, such as Figure 5 and Figure 6 As shown, the channel inlet 41 and channel outlet 42 can be oriented in different directions. For example, along the width direction W of the head-mounted display device, the channel inlet 41 can be oriented towards one side of the head-mounted display device; along the height direction H of the head-mounted display device, the channel outlet 42 can be positioned near the top of the head-mounted display device. In this case, each heat dissipation fin 31 can extend continuously from the channel inlet 41 to the channel outlet 42 on the heat dissipation surface 32. For example, the section of the heat dissipation fin 31 near the channel inlet 41 can be a straight, thin sheet structure, while the section near the channel outlet 42 can be a curved, thin sheet structure. Thus, as the cooling airflow flows within the air duct 35 between two adjacent heat dissipation fins 31, the airflow direction can be changed under the constraint and guidance of the heat dissipation fins 31.

[0071] In the above embodiments, since at least two heat dissipation fins 31 are provided on the heat dissipation surface 32 of the first heat sink 3, not only can the surface area within the heat dissipation channel 4 be increased, but the heat dissipation channel 4 can also be divided into multiple air ducts 35 by the heat dissipation device. This allows the heat dissipation airflow to flow within multiple air ducts 35, which not only improves the heat exchange efficiency between the heat dissipation airflow and the first heat sink 3, but also helps to reduce the turbulence generated by the heat dissipation airflow, thereby reducing the noise generated when the heat dissipation airflow flows. At the same time, by making the heat dissipation fins 31 extend continuously between the channel inlet 41 and the channel outlet 42, the extension direction of the heat dissipation fins 31 can be changed so that the channel inlet 41 and the channel outlet 42 face different directions, which facilitates the setting of the positions of the air outlet 13 and the air inlet 12 on the housing 1.

[0072] In some possible embodiments of this application, reference is made to Figure 7 , Figure 7A cross-sectional view of the first heat sink 3 in the head-mounted display device provided in this application is shown. An interconnecting structure 33 connects two adjacent air ducts 35.

[0073] In the embodiments of this application, such as Figure 4 and Figure 7 As shown, by setting the structure of each heat dissipation fin 31, after the cover 5 is placed on the heat dissipation fin 31, an interconnection structure 33 can be formed between two adjacent heat dissipation fins 31, so that two adjacent air ducts 35 can be connected in the part except for the channel inlet 41 and the channel outlet 42, instead of being completely isolated.

[0074] For example, through holes or notches can be provided on a section of the heat dissipation fin 31 near the channel outlet 42, so that two adjacent air ducts 35 can be connected near the channel outlet 42. This allows the heat dissipation airflow within the two adjacent air ducts 35 to circulate with each other.

[0075] In the above embodiment, since there is an interconnection structure 33 between two adjacent air ducts 35, if the flow velocity and flow rate of the heat dissipation airflow in the two adjacent air ducts 35 are different during the flow of the heat dissipation airflow through the air duct 35, the heat dissipation airflow in the air duct 35 with higher air pressure can flow to the adjacent air duct 35 with lower air pressure through the interconnection structure 33. This can keep the air pressure in each air duct 35 basically balanced and promote more uniform contact between the airflow and heat in the heat dissipation channel 4, resulting in better heat dissipation effect.

[0076] In some possible embodiments of this application, the heat dissipation fins 31 are formed extending from the heat dissipation surface 32 of the first heat dissipation member 3 in a direction away from the heat dissipation surface 32. The upper end of the heat dissipation fins 31 includes a protrusion 311 and a recess 312. The protrusion 311 and the recess 312 extend along the length of the heat dissipation fins 31. The protrusion 311 is formed at the end of the heat dissipation fins 31 located at the channel inlet 41. The recess 312 extends from the protrusion 311 to the channel outlet 42. The recess 312 forms an interconnection structure 33.

[0077] In the embodiments of this application, such as Figure 6 As shown, the heat dissipation fins 31 can be formed by extending from the heat dissipation surface 32 of the first heat sink 3. For example, the heat dissipation fins 31 can be configured as a thin sheet structure. The heat dissipation fins 31 and the main body of the first heat sink 3 can be formed by integral molding, or the heat dissipation fins 31 can be fixed to the main body of the first heat sink 3 by welding, bonding or other methods.

[0078] For example, such as Figure 6As shown, in the direction perpendicular to the heat dissipation surface 32 of the first heat sink 3, the upper ends of the heat dissipation fins 31 away from the heat dissipation surface 32 can be configured with different structural forms to create an interconnection structure 33 between two adjacent air ducts 35. For example, along the length direction of each heat dissipation fin 31 (which is parallel to the heat dissipation surface 32), a protrusion 311 is provided at one end of the heat dissipation fin 31 near the channel inlet 41, and a recess 312 is provided at one end of the heat dissipation fin 31 near the channel outlet 42, and the protrusion 311 and the recess 312 are continuous. That is, in the direction perpendicular to the heat dissipation surface 32 of the first heat sink 3, the edge of the recess 312 is closer to the first heat dissipation surface 32 than the edge of the protrusion 311.

[0079] Thus, as Figure 4 and Figure 7 As shown, after the cover 5 is placed on the heat dissipation fins 31, the cover 5 abuts against the protrusions 311 on the heat dissipation fins 31, while leaving a certain gap between the cover 5 and the recess 312. This allows two adjacent air ducts 35 to be connected through the gap between the recess 312 and the cover 5, that is, an interconnection structure 33 is formed between two adjacent air ducts 35 through the recess 312.

[0080] In the above embodiment, since a protrusion 311 and a recess 312 are provided at the upper end of the heat dissipation fin 31, after the cover 5 abuts against the protrusion 311 of the heat dissipation fin 31 to form a heat dissipation channel 4, the recess 312 of the heat dissipation fin 31 cannot abut against the cover 5, so that two adjacent air ducts 35 can be connected through the recess 312, and an interconnection structure 33 can be formed between the two adjacent air ducts 35.

[0081] In some possible embodiments of this application, such as Figure 4 and Figure 5 As shown, the channel outlet 42 has a guide structure, which is used to guide the heat dissipation airflow towards the air outlet 13.

[0082] In this embodiment, a structure can be provided at the channel outlet 42 to guide the heat dissipation airflow toward the air outlet 13 on the housing 1, so that after the heat dissipation airflow passes through the heat dissipation channel 4, it can flow smoothly into the air outlet 13 and be discharged outside the housing 1.

[0083] For example, a guide structure can be provided on the first heat sink 3 near the channel outlet 42, or on the cover 5 near the channel outlet 42, or both the first heat sink 3 and the cover 5 can be provided with guide structures. For instance, the guide structure can be a continuous curved surface structure that extends continuously from the first heat sink 3 and / or the cover 5 to a position near the air outlet 13.

[0084] In the above embodiments, since a guide structure is provided at the channel outlet 42, the heat dissipation airflow flowing through the heat dissipation channel 4 can be guided by the guide structure to flow towards the air outlet 13 on the housing 1, so that the heat dissipation airflow can be discharged from the air outlet 13 to the outside of the housing 1 quickly, smoothly and as completely as possible.

[0085] In some possible embodiments of this application, the guide structure includes a cover guide surface 52 and a heat dissipation guide surface 34; the cover 5 has a cover outlet 5 corresponding to the air outlet 13, the cover guide surface 52 extends from the edge of the cover outlet 5 on the cover 5 toward the air outlet 13, and the cover guide surface 52 surrounds the cover outlet 5; the heat dissipation guide surface 34 extends from the edge of the heat dissipation surface 32 of the first heat dissipation member 3 toward the air outlet 13.

[0086] In the embodiments of this application, such as Figure 4 , Figure 5 and Figure 6 As shown, a guide structure can be provided on both the cover 5 and the first heat sink 3 to guide the heat dissipation airflow toward the air outlet 13. That is, a cover guide surface 52 is provided on the cover 5, and a heat dissipation guide surface 34 is provided on the first heat sink 3. The heat dissipation guide surface 34 and the cover guide surface 52 cooperate to form a guide structure.

[0087] For example, such as Figure 4 and Figure 6 As shown, a heat dissipation guide surface 34 can be provided on one end of the first heat sink 3 near the air outlet 13. For example, the heat dissipation guide surface 34 can be continuously extended from the heat dissipation surface 32 of the first heat sink 3, extending from the edge of the heat dissipation surface 32 towards the air outlet 13. The portion of the heat dissipation guide surface 34 connected to the heat dissipation surface 32 can be configured as a curved structure, while the portion of the heat dissipation guide surface 34 near the air outlet 13 can be configured as a planar structure. In this way, after the heat dissipation airflow flows to the heat dissipation guide surface 34 in a direction parallel to the heat dissipation surface 32, under the restriction and guidance of the heat dissipation guide surface 34, the heat dissipation airflow can gradually change its flow direction until it faces the air outlet 13.

[0088] Another example, such as Figure 5 and Figure 7As shown, after the heat dissipation guide surface 34 is provided on the first heat sink 3, the heat dissipation airflow flows towards the cover 5 after reaching the end of the heat dissipation channel 4. A through hole can be provided on the cover 5 near the air outlet 13, serving as the cover outlet 5, allowing the heat dissipation airflow to flow out of the heat dissipation channel 4 through the cover outlet 5. Simultaneously, a cover guide surface 52 can be provided on the cover outlet 5. For example, the cover guide surface 52 can be formed by extending from the edge of the cover outlet 5 away from the first heat sink 3, and can be formed into an annular structure (approximately cylindrical structure) around the cover outlet 5, meaning the end of the annular cover guide surface 52 away from the first heat sink 3 faces the air outlet 13. Furthermore, the shape of the end of the annular cover guide surface 52 can be matched to the shape of the air outlet 13. This allows the end of the cover guide surface 52 to abut against the edge of the air outlet 13, ensuring that the heat dissipation airflow from the cover outlet 5 flows into the air outlet 13 as completely as possible under the restriction and guidance of the cover guide surface 52.

[0089] In the above embodiment, since a heat dissipation guide surface 34 is provided on the first heat sink 3, the heat dissipation airflow can be guided to flow towards the air outlet 13 through the heat dissipation guide surface 34. Furthermore, a cover outlet 5 is provided on the cover 5, allowing the heat dissipation airflow, whose flow direction has changed under the guidance of the heat dissipation guide surface 34, to flow out of the heat dissipation channel 4 through the cover outlet 5. Simultaneously, an annular cover guide surface 52 extending towards the air outlet 13 is provided at the edge of the cover outlet 5. The cover guide surface 52 can completely restrict and guide the heat dissipation airflow to the air outlet 13 on the housing 1, which is beneficial for improving the exhaust efficiency of the heat dissipation airflow and limiting the direction and range of the heat dissipation airflow flowing out of the housing 1.

[0090] In some possible embodiments of this application, such as Figure 3 , Figure 5 and Figure 6 As shown, the head-mounted display device also includes an aerodynamic device 6, which is installed in the housing cavity 11 and located between the air inlet 12 and the channel inlet 41, for forming a cooling airflow through the heat dissipation channel 4.

[0091] In this embodiment, an aerodynamic device 6 can be provided in the head-mounted display device to generate and accelerate the flow speed of the cooling airflow. For example, the aerodynamic device 6 can be a fan, such as a centrifugal fan.

[0092] For example, a fan, serving as an aerodynamic device 6, can be installed inside the receiving cavity 11 of the housing 1, and the fan can be fixed between the air inlet 12 of the housing 1 and the channel inlet 41 of the heat dissipation channel 4. The exhaust port of the fan can be abutted against and sealed to the channel inlet 41 so that the airflow generated by the fan can enter the heat dissipation channel 4 as completely as possible. The air inlet on the fan can be a certain distance from the air inlet 12 of the housing 1, so that not only air outside the housing 1 can be drawn into the fan, but also warmer air inside the receiving cavity 11 can be drawn into the fan, thereby allowing the air inside the receiving cavity 11 to circulate, and also allowing cooler air outside the housing 1 to enter the receiving cavity 11.

[0093] In the above embodiments, since an aerodynamic device 6 is provided in the accommodating cavity 11 of the housing 1 and the aerodynamic device 6 is located between the air inlet 12 and the channel inlet 41, the aerodynamic device 6 can not only increase the exchange speed of air in the accommodating cavity 11 and outside the housing 1, but also form a heat dissipation airflow through the heat dissipation channel 4 and increase the flow rate of the heat dissipation airflow, which is beneficial to improving the heat dissipation and cooling efficiency of the head-mounted display device.

[0094] In some possible embodiments of this application, such as Figure 3 As shown, a sound-absorbing component 7 is provided at the bottom of the aerodynamic device 6 to reduce the noise generated by the aerodynamic device 6.

[0095] In this embodiment, a sound-absorbing component 7 can be provided between the aerodynamic device 6 and the housing 1 to reduce the noise generated by the aerodynamic device 6 during operation.

[0096] For example, such as Figure 3 As shown, a sound-absorbing component 7 can be installed at the bottom of the aerodynamic device 6. The bottom of the aerodynamic device 6 can be the part of the aerodynamic device 6 that abuts against the fixed point where the aerodynamic device 6 is installed in the receiving cavity 11. This allows the aerodynamic device 6 to abut against the fixed point through the sound-absorbing component 7. For example, the sound-absorbing component 7 can be made of noise-reducing foam. On the one hand, the noise-reducing foam can provide cushioning for the aerodynamic device 6, which helps to reduce the amplitude of the aerodynamic device 6 and also reduces the transmission of the vibration generated by the aerodynamic device 6 to the housing 1, etc. On the other hand, the noise generated by the aerodynamic device 6 will be reduced due to the absorption and reflection effect of the noise-reducing foam.

[0097] In the above embodiments, since a sound-absorbing component 7 is provided at the bottom of the aerodynamic device 6, the noise generated by the aerodynamic device 6 can be absorbed and reflected under the action of the sound-absorbing component 7, which helps to reduce the noise generated by the head-mounted display device when it is working.

[0098] In some possible embodiments of this application, the head-mounted display device further includes a temperature sensor (not shown in the figures) connected to the heating element 2. Both the temperature sensor and the aerodynamic device 6 are electrically connected to the controller of the head-mounted display device. The temperature sensor is used to detect the real-time temperature of the heating element 2, and the controller is used to control the rotation speed of the aerodynamic device 6 and / or the power consumption of the head-mounted display device according to the real-time temperature.

[0099] In this embodiment of the application, a temperature sensor capable of detecting temperature changes can be set in the head-mounted display device. For example, the temperature sensor can be connected to the heating device 2 to detect the temperature of the heating device 2 in real time.

[0100] For example, if the CPU in the head-mounted display device has a device that can detect temperature, a line can be provided on the circuit board 21 of the head-mounted display device for electrically connecting to the device that can detect temperature inside the CPU, so as to electrically connect the device for detecting temperature inside the CPU to the controller of the head-mounted display device.

[0101] In another example, temperature sensors can be set separately for the CPU, graphics processing unit (GPU), display device (such as a display screen), etc. For example, the temperature sensor can be a thermistor, platinum resistance temperature sensor, etc. The temperature sensor can be fixedly connected to the heating device 2 by means of adhesive bonding or other methods.

[0102] In another example, the temperature sensor can be electrically connected to the controller of the head-mounted display device, and the aerodynamic device 6 can be electrically connected to the controller. In this way, after the controller receives the temperature signal from the temperature sensor of the heating element 2, it can control the rotational speed of the aerodynamic device 6 based on the temperature signal reflecting the real-time temperature of the heating element 2. For example, if the temperature of the heating element 2 is higher than the maximum preset temperature value, the aerodynamic device 6 can be controlled to operate at its maximum rotational speed. At this time, the airflow in the heat dissipation channel 4 can flow at its maximum speed to quickly expel the heat generated by the heating element 2 to the outside of the housing 1. If a pulse width modulation (PWM) control method is used, the rotational speed of the aerodynamic device 6 can be controlled according to the temperature of the heating element 2, making the rotational speed of the aerodynamic device 6 positively correlated with the temperature of the heating element 2.

[0103] As another example, the power consumption of the heat-generating device 2 can be controlled by the controller based on its real-time temperature to keep its temperature within a suitable range. For instance, if the display device's temperature exceeds a preset value, its brightness and refresh rate can be reduced to lower its temperature. For example, reducing the display device's brightness to 70% would reduce its refresh rate from 90Hz to 60Hz.

[0104] In the above embodiment, since a temperature sensor is provided for the heating element 2 in the head-mounted display device, the real-time temperature of the heating element 2 can be obtained through the temperature sensor. Both the temperature sensor and the aerodynamic device 6 are electrically connected to the controller. Based on the obtained real-time temperature of the heating element 2, the rotation speed of the aerodynamic device 6 can be controlled to control the flow rate of the cooling airflow, thereby enabling timely and accurate exhaust of the high-temperature cooling airflow to the outside of the housing 1. Furthermore, the power consumption of the head-mounted display device can be controlled based on the real-time temperature of the heating element 2, which helps reduce the heat generated by the heating element 2, thus maintaining the temperature within the housing 11 within a reasonable range.

[0105] In some possible embodiments of this application, at least one air inlet 12 is provided at each end of the housing 1 along the width direction W of the head-mounted display device, and the aerodynamic device 6 is located in the receiving cavity 11 near any one of the air inlets 12.

[0106] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, multiple air inlets 12 can be provided on the housing 1 so that air from outside the housing 1 can enter the receiving cavity 11 simultaneously from multiple air inlets 12.

[0107] For example, air inlets 12 can be provided at both ends of the housing 1 along the width direction W of the head-mounted display device. That is, as shown... Figure 1 As shown, air inlets 12 can be provided on both the left and right sides of the housing 1. For example, one air inlet 12 can be provided on each of the left and right sides of the housing 1, or two air inlets 12 can be provided on the right side of the housing 1 and two air inlets 12 can be provided on the left side of the housing 1. The embodiments of this application do not limit the number of air inlets 12 at each end of the housing 1.

[0108] Another example, such as Figure 2 As shown, along the width direction W of the head-mounted display device, the aerodynamic device 6 can be disposed on one side of the receiving cavity 11. For example, the aerodynamic device 6 can be disposed on the left side of the receiving cavity 11, in which case the aerodynamic device 6 is adjacent to the air inlet 12 on the left side of the housing 1. Alternatively, the aerodynamic device 6 can be disposed on the right side of the receiving cavity 11, so that the aerodynamic device 6 is close to the air inlet 12 on the right side of the housing 1.

[0109] In the above embodiment, since at least one air inlet 12 is provided at both ends of the housing 1, the speed at which air from outside the housing 1 enters the receiving cavity 11 can be increased, thereby increasing the air intake. Simultaneously, placing the aerodynamic device 6 close to any one of the air inlets 12 not only allows the cooler air from outside the housing 1 to quickly enter the aerodynamic device 6 and be rapidly delivered to the heat dissipation channel, but also ensures that the air entering from the air inlet 12 furthest from the aerodynamic device 6 is more evenly distributed within the receiving cavity 11. This improves the heat exchange efficiency of the air within the receiving cavity 11, which is beneficial for enhancing the heat dissipation and cooling efficiency of the heat-generating device 2.

[0110] In some possible embodiments of this application, such as Figure 5 and Figure 6 As shown, the heat dissipation surface 32 of the first heat sink 3 also has heat-conducting fins 36 in the area outside the heat dissipation channel 4.

[0111] In this embodiment, not only can heat dissipation fins 31 be provided on the heat dissipation surface 32 of the first heat dissipation component 3, but also heat-conducting fins 36 can be provided on the heat dissipation surface 32 to increase the surface area of ​​the first heat dissipation component 3 through the heat-conducting fins 36.

[0112] For example, such as Figure 6 As shown, heat-conducting fins 36 can be provided on the first heat sink 3 in the area outside the heat dissipation channel 4, and the heat-conducting fins 36 can be configured as thin sheet-like structures. The extending direction of the heat-conducting fins 36 can be the same as the extending direction of the heat dissipation fins 31, or they can have an angle of any angle.

[0113] In the above embodiment, since heat-conducting fins 36 are also provided on the heat dissipation surface 32 of the first heat sink 3, the surface area of ​​the first heat sink 3 can be increased by the heat-conducting fins 36, thereby increasing the contact area between the first heat sink 3 and the air in the accommodating cavity 11, thereby improving the heat dissipation and cooling efficiency of the first heat sink 3, that is, improving the heat dissipation and cooling efficiency of the heat-generating device 2.

[0114] In some possible embodiments of this application, the housing 1 includes a front housing 14 and a rear housing 15. The air outlet 13 is located above the horizontal central axis L of the front housing 14 and is located on the vertical central axis V of the front housing 14 and is symmetrically arranged. The front housing 14 is farther away from the wearing surface relative to the rear housing 15.

[0115] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the housing 1 of the head-mounted display device can be configured as a structure in which at least two separable parts are combined, and the at least two parts are fixedly connected to form the entire housing 1.

[0116] For example, the housing 1 can be configured to include a matching front housing 14 and a rear housing 15. After the front housing 14 and the rear housing 15 are fixedly connected, they can be enclosed to form a receiving cavity 11. When the head-mounted display device is worn on the user's head, the portion of the head-mounted display device that contacts the user's face is the wearing surface. The rear housing 15 is located closer to the user's face, that is, the rear housing 15 is located on the housing 1 near the wearing surface, while the front housing 14 is located away from the wearing surface corresponding to the rear housing 15.

[0117] In another example, the air outlet 13 on housing 1 can be positioned on the front housing 14, so that the air outlet 13 is located away from the user's head. Figure 1 As shown, the air outlet 13 can be positioned on the front housing 14 near the top of the user's head, meaning the air outlet 13 is located above the horizontal central axis L of the front housing 14. Simultaneously, along the width W of the head-mounted display device, the air outlet 13 can be positioned in the middle of the front housing 14, meaning the air outlet 13 is also located on the vertical central axis V of the front housing 14. Furthermore, the air outlet 13 can be configured as a symmetrical structure relative to the vertical central axis V.

[0118] In the above embodiments, the housing 1 is configured with a structure including a front housing 14 and a rear housing 15, which facilitates the processing of the housing 1 and the assembly of the devices installed in the front housing 14 and the rear housing 15. Furthermore, the air outlet 13 is located above the horizontal central axis L of the front housing 14, and simultaneously, the air outlet 13 is located on the vertical central axis V of the front housing 14. This allows the air outlet 13 to be located on the housing 1 away from the wearing surface of the head-mounted display device, thus keeping the heat dissipation space formed by the airflow away from the user's head area, which helps to reduce the impact of the airflow on the user. Additionally, the heat dissipation channel 4 has sufficient length, which helps to increase the contact time between the airflow and the heat dissipation fins 31, thereby improving the heat dissipation and cooling efficiency of the heat-generating device 2.

[0119] In some possible embodiments of this application, such as Figure 1 As shown, the air outlet 13 and / or air inlet 12 are provided with a mesh 8.

[0120] In the embodiments of this application, such as Figure 1 As shown, a mesh 8 can be provided on the housing 1 and positioned at the air outlet 13 and / or air inlet 12 to block foreign objects from entering the receiving cavity 11.

[0121] For example, a mesh member 8 can be fixedly installed on the air outlet 13. The mesh member 8 of the air outlet 13 is set to a shape that matches the air outlet 13, and the mesh member 8 of the air outlet 13 can be fixed to the air outlet 13 by means of adhesive, snap-fit, or other methods. Alternatively, a mesh member 8 can be fixedly installed on the air inlet 12. The mesh member 8 of the air inlet 12 is set to a shape that matches the air inlet 12, and the mesh member 8 of the air inlet 12 can be fixed to the air inlet 12 by means of adhesive, snap-fit, or other methods. The mesh member 8 can be a sheet-like structure with multiple through holes of small diameter (e.g., diameter less than or equal to 1 mm).

[0122] In the above embodiments, since the air outlet 13 and air inlet 12 of the housing 1 are provided with mesh 8, the airflow can be discharged to the outside of the housing 1 through the mesh 8 or enter the receiving cavity 11. The mesh 8 can also block foreign objects from entering the receiving cavity 11, which helps to reduce the risk of foreign objects damaging the devices inside the head-mounted display device.

[0123] In some possible embodiments of this application, the head-mounted display device further includes a display component 9, which is located within the receiving cavity 11, and a second heat sink 10 is disposed on the display component 9.

[0124] In the embodiments of this application, such as Figure 2 and Figure 3 As shown, the head-mounted display device also includes display components 9, which can output images or videos. For example, two display components 9 can be placed within the receiving cavity 11 of the housing 1, each corresponding to one of the user's eyes. The display components 9 may include a display screen.

[0125] For example, a second heat sink 10 can be provided on the display component 9. The second heat sink 10 can be made of materials with high thermal conductivity, such as copper, aluminum, or alloys. For example, the second heat sink 10 can be configured to match the structure of the display component 9, and the second heat sink 10 can be attached to the back of the display component 9 (the side away from the user's eyes) to increase the contact area between the display component 9 and the air.

[0126] In another example, a flexible material with high thermal conductivity, such as thermally conductive gel, can be placed between the display component 9 and the second heat sink 10 to ensure a tight fit between the second heat sink 10 and the display component 9 via the thermally conductive gel. Alternatively, thermally conductive gel can be placed between other heat-generating devices 2 and the first heat sink 3 to ensure a tight fit between the other heat-generating devices 2 and the first heat sink 3 via the thermally conductive gel. This can improve the heat exchange efficiency between the heat-generating devices 2 and the first heat sink 3, and between the display component 9 and the second heat sink 10.

[0127] In the above embodiments, since a display component 9 is provided in the head-mounted display device, images, videos, etc. can be output through the display component 9. At the same time, a second heat sink 10 is provided on the display component 9, which can improve the heat exchange efficiency between the display component 9 and the air in the housing cavity 11, thereby improving the heat dissipation and cooling efficiency of the display component 9.

[0128] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A head-mounted display device, characterized in that, include: The housing has a receiving cavity, an air outlet, and an air inlet, both of which are connected to the receiving cavity; A heating element, wherein the heating element is installed within the receiving cavity; A first heat sink is installed inside the receiving cavity to dissipate heat from the heat-generating device and form a heat dissipation airflow. A heat dissipation channel is located between the first heat dissipation component and the housing. The cooling airflow is discharged along the cooling channel and the air outlet so that the cooling space formed by the cooling airflow outside the housing does not overlap with the user's head area.

2. The head-mounted display device according to claim 1, characterized in that, It also includes a cover, which is disposed between the housing and the first heat sink. The cover and the first heat sink together form the heat dissipation channel. The channel outlet of the heat dissipation channel faces the air outlet, and the heat dissipation airflow enters the heat dissipation channel from the channel inlet.

3. The head-mounted display device according to claim 2, characterized in that, The first heat sink includes heat sink fins, and there are at least two heat sink fins, with an air duct formed between adjacent heat sink fins; the heat sink fins extend continuously along the heat dissipation surface of the first heat sink between the channel inlet and the channel outlet.

4. The head-mounted display device according to claim 3, characterized in that, There is an interconnection structure between two adjacent air ducts, and the two adjacent air ducts are connected through the interconnection structure.

5. The head-mounted display device according to claim 4, characterized in that, The heat dissipation fins extend from the heat dissipation surface of the first heat dissipation component in a direction away from the heat dissipation surface. The upper end of the heat dissipation fins includes a protrusion and a recess. The protrusion and the recess extend along the length of the heat dissipation fins. The protrusion is formed at the end of the heat dissipation fin located at the channel inlet. The recess extends from the protrusion to the channel outlet. The recess forms the interconnection structure.

6. The head-mounted display device according to claim 2, characterized in that, The channel outlet has a guide structure, which is used to guide the heat dissipation airflow toward the air outlet.

7. The head-mounted display device according to claim 6, characterized in that, The guiding structure includes a cover guide surface and a heat dissipation guide surface; the cover has a cover outlet corresponding to the air outlet, the cover guide surface extends from the edge of the cover outlet on the cover towards the air outlet, and the cover guide surface surrounds the cover outlet; the heat dissipation guide surface extends from the edge of the heat dissipation surface of the first heat dissipation component towards the air outlet.

8. The head-mounted display device according to any one of claims 2 to 7, characterized in that, It also includes an aerodynamic device, which is installed in the receiving cavity and located between the air inlet and the channel inlet, for forming the cooling airflow through the cooling channel.

9. The head-mounted display device according to claim 8, characterized in that, A sound-absorbing component is installed at the bottom of the aerodynamic device to reduce the noise generated by the aerodynamic device.

10. The head-mounted display device according to claim 8, characterized in that, It also includes a temperature sensor connected to the heating device. Both the temperature sensor and the aerodynamic device are electrically connected to the controller of the head-mounted display device. The temperature sensor is used to detect the real-time temperature of the heating device, and the controller is used to control the rotation speed of the aerodynamic device and / or the power consumption of the head-mounted display device according to the real-time temperature.

11. The head-mounted display device according to claim 8, characterized in that, Along the width direction of the head-mounted display device, at least one air inlet is provided at each end of the housing, and the aerodynamic device is located in the receiving cavity near any one of the air inlets.

12. The head-mounted display device according to any one of claims 1 to 7, characterized in that, The area on the heat dissipation surface of the first heat sink outside the heat dissipation channel also has heat-conducting fins.

13. The head-mounted display device according to any one of claims 1 to 7, characterized in that, The housing includes a front housing and a rear housing. The air outlet is located above the horizontal central axis of the front housing and is located on the vertical central axis of the front housing and is symmetrically arranged. The front housing is farther away from the wearing surface relative to the rear housing.

14. The head-mounted display device according to any one of claims 1 to 7, characterized in that, The air outlet and / or the air inlet are provided with a mesh.

15. The head-mounted display device according to any one of claims 1 to 7, characterized in that, It also includes a display component located within the receiving cavity, and a second heat sink is provided on the display component.

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