Head-mounted device

Abstract

The invention discloses a head-mounted device, the head-mounted device comprises a device shell, a cross-flow fan and a heating and heat conducting assembly, the device shell is internally provided with an accommodating space, one end of the device shell is provided with an air inlet, and the other end of the device shell is provided with a heat dissipation port; the cross-flow fan is arranged in the accommodating space and is provided with an air inlet and an air outlet which are communicated with each other; the air inlet is close to the air inlet and is communicated with the air inlet, and the air outlet is close to the heat dissipation opening and is communicated with the heat dissipation opening; the heating and heat conducting assembly is arranged in the containing space and located between the cross-flow fan and the air inlet, a drainage channel is arranged in the heating and heat conducting assembly, the first end of the drainage channel is communicated with the air inlet, and the second end of the drainage channel is communicated with the air inlet.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and more specifically, to a head-mounted device. Background Art

[0002] With the rapid development of technology, head-mounted devices (HMDs) have been widely used in various fields, such as virtual reality (VR), augmented reality (AR), and smart wearables. Head-mounted devices typically integrate multiple electronic components and functional modules, which generate heat during operation. If this heat cannot be dissipated promptly and effectively, the internal temperature of the device will rise, affecting its performance, stability, and service life.

[0003] There are some shortcomings in the existing heat dissipation solutions for head-mounted devices. For example, some head-mounted devices use traditional cooling fans, but the fan layout and airflow organization are unreasonable, resulting in low heat dissipation efficiency and an inability to quickly discharge heat out of the device. Some head-mounted devices are equipped with heat dissipation structures, but the heat conduction path between the heating device and the heat dissipation component is not optimized enough, and heat cannot be efficiently transferred from the heat source to the heat dissipation component, resulting in poor overall heat dissipation effect. In addition, some heat dissipation solutions are not compact enough in structural design, occupying more space inside the device, which is not conducive to the miniaturization and lightweight design of the head-mounted device, and has a certain impact on the user experience.

[0004] In view of this, a new technical solution needs to be proposed to solve at least one of the above technical problems. Summary of the Invention

[0005] One purpose of this application is to provide a new technical solution for head-mounted devices.

[0006] According to a first aspect of the present application, a head-mounted device is provided, comprising: A device housing has a storage space therein, an air inlet is provided at one end of the device housing, and a heat dissipation outlet is provided at the other end; A cross-flow fan, the cross-flow fan being arranged in the accommodating space, the cross-flow fan having an air inlet and an air outlet that are interconnected; the air inlet being arranged near the air inlet and the air outlet being interconnected, and the air outlet being arranged near the heat dissipation port and the air outlet being interconnected; A heating and heat-conducting component is arranged in the accommodating space and is located between the cross-flow fan and the air inlet. A drainage channel is provided in the heating and heat-conducting component, a first end of the drainage channel is connected to the air inlet, and a second end of the drainage channel is connected to the air inlet.

[0007] Optionally, the air inlet, the air intake, the air outlet and the heat dissipation vent are arranged along a first direction, and the drainage channel is extended along the first direction, and the first direction is the height direction of the device housing.

[0008] Optionally, the length of the drainage channel is greater than or equal to one half of the height of the device housing and less than or equal to two thirds of the height of the device housing.

[0009] Optionally, there is a first distance between the air inlet and the first end of the drainage channel, and there is a second distance between the air outlet and the heat dissipation port, and the first distance is greater than the second distance.

[0010] Optionally, the heat-generating and heat-conducting assembly includes a support member, a heat sink, and a heating device, the heat sink is mounted on the support member, a first portion of the support member is in direct or indirect contact with the heating device, and a second portion of the support member is spaced apart and arranged opposite to the heating device, with the drainage channel formed therebetween. The heat sink is configured to guide the heat emitted by the heating device to the air inlet, and the heat is discharged from the air outlet via the cross-flow fan.

[0011] Optionally, the support member, the heat sink and the heating device are arranged along a second direction, and the second direction is a thickness direction of the device housing.

[0012] Optionally, the heat generating and heat conducting component is arranged on a side of the air inlet away from the air outlet, and the radiator is arranged facing the air inlet.

[0013] Optionally, the support member includes a first bracket and a second bracket, the second bracket is connected to one side of the first bracket, and an installation space is enclosed between the first bracket and the second bracket. The radiator is installed in the installation space, and the radiator is in direct or indirect contact with the first bracket.

[0014] Optionally, a protrusion is provided on a side of the first bracket, and the protrusion is configured to be in direct or indirect contact with the heating device.

[0015] Optionally, a thermal pad is provided between the protrusion and the heating device, and the protrusion is in indirect contact with the heating device through the thermal pad.

[0016] In the head-mounted device provided in the embodiment of the present application, a drainage channel is provided inside the heating and heat-conducting component, and the drainage channel connects the air inlet with the air inlet of the cross-flow fan. After the air enters the accommodating space through the air inlet, the drainage channel can guide the airflow through the interior of the heating and heat-conducting component, thereby effectively taking away the heat generated thereby, realizing efficient heat dissipation function, and ensuring the normal operation of the head-mounted device.

[0017] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0019] Figure 1 The figure shows the overall structure of the head mounted device according to an embodiment of the present application; Figure 2 FIG2 is a schematic diagram of a partial structure of a head-mounted device according to an embodiment of the present application; Figure 3 The figure shows the structure of the cross-flow fan in the head-mounted device of the embodiment of the present application. Figure 1 ; Figure 4 The figure shows the structure of the cross-flow fan in the head-mounted device of the embodiment of the present application. Figure 2 ; Figure 5 The figure shows the structure of the fan housing in the cross-flow fan of the embodiment of the present application. Figure 1 ; Figure 6 The figure shows the structure of the fan housing in the cross-flow fan of the embodiment of the present application. Figure 2 ; Figure 7 The figure shows the structure of the fan housing in the cross-flow fan of the embodiment of the present application. Figure 3 .

[0020] Description of reference numerals: 1. Crossflow fan; 11. Fan housing; 111. First end wall; 1110. First bearing hole; 112. Second end wall; 1120. Second bearing hole; 1121. Positioning slot; 113. First side wall; 114. Second side wall; 1101. Air inlet; 1102. Air outlet; 1103. Guide slot; 1130. First air guide portion; 1140. Second air guide portion; 115. First connecting lug; 1150. First mounting hole; 116. Second connecting lug; 1160. Second mounting hole; 117. Positioning plate; 12. Fan body; 121. Impeller; 122. Central shaft; 13. Micro motor; 141. First bearing; 142. Second bearing; 15. Speed ​​regulating transmission element; 151. Gearbox; 152. Gearbox housing; 16. Cover plate; 160. First shaft hole; 17. Screw; 18. Pressing piece; 2. Support member; 21. First bracket; 210. Raised portion; 211. First fixing hole; 212. Second fixing hole; 22. Second bracket; 23. Thermal interface material; 3. Radiator; 31. Heat sink; 4. Equipment housing; 40. Accommodation space; 41. Air inlet; 42. Heat dissipation vent; 5. Heat generating device; 6. Drainage channel; 7. Optical machine module. DETAILED DESCRIPTION

[0021] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0022] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0023] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0024] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0025] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0026] Reference Figure 1 As shown, according to one embodiment of the present application, a head-mounted device is provided, comprising: a cross-flow fan 1 and a device housing 4, wherein the device housing 4 has an accommodating space 40, an air inlet 41 being formed at one end of the device housing 4, and a heat dissipation vent 42 being formed at the other end; the cross-flow fan 1 is disposed in the accommodating space 40, and has an air inlet 1101 and an air outlet 1102 that are interconnected; the air inlet 1101 is disposed near the air inlet 41 and the air outlet 1102 is disposed near the heat dissipation vent 42 and the air inlet 1101 is interconnected; It also includes a heating and heat-conducting component, which is arranged in the accommodating space 40 and located between the cross-flow fan 1 and the air inlet 41. A drainage channel 6 is provided in the heating and heat-conducting component, and the first end of the drainage channel 6 is connected to the air inlet 41, and the second end of the drainage channel 6 is connected to the air inlet 1101.

[0027] The head-mounted device provided in the embodiment of the present application includes a device housing 4, a cross-flow fan 1, and a heat-generating and heat-conducting component. The device housing 4 has a housing space 40, within which the cross-flow fan 1 and the heat-generating and heat-conducting component are both disposed. An air inlet 41 is provided at one end of the device housing 4, and a heat-dissipating vent 42 is provided at the other end, providing a channel for airflow. The cross-flow fan 1 is disposed within the housing space, with its air inlet 1101 communicating with the air inlet 41 of the device housing, and its air outlet 1102 communicating with the heat-dissipating vent 42 of the device housing, thereby achieving directional airflow within the device. The heat-generating and heat-conducting component is disposed between the cross-flow fan 1 and the air inlet 41, and a guide channel 6 is provided within the heat-generating and heat-conducting component, connecting the air inlet 41 with the air inlet 1101 of the cross-flow fan. After air enters the housing space 40 through the air inlet 41, the guide channel 6 guides the airflow through the interior of the heat-generating and heat-conducting component, thereby effectively removing the heat generated thereby, achieving efficient heat dissipation and ensuring the normal operation of the head-mounted device.

[0028] Furthermore, the cross-flow fan 1 and the heat-generating and heat-conducting components are arranged along the height direction (i.e., the first direction) of the device housing 4. Generally, the height direction of the device housing of a head-mounted device is relatively spacious, and arranging the cross-flow fan 1 and the heat-generating and heat-conducting components along the height direction of the device housing 4 facilitates the miniaturization of the head-mounted device.

[0029] If the cross-flow fan 1 and the heat-generating and heat-conducting components are arranged along the thickness direction of the device housing 4 (i.e., the second direction), since the space in the thickness direction of the device housing of the head-mounted device is very limited, such an arrangement will increase the size of the device housing 4 in the thickness direction, which is not conducive to the miniaturization design of the head-mounted device.

[0030] Therefore, in the head-mounted device provided in the embodiment of the present application, the arrangement of the cross-flow fan 1 and the heating and heat-conducting components helps to rationally plan the accommodating space 40 inside the device shell 4, which not only ensures that the cross-flow fan 1 and the heating and heat-conducting components can work together in a limited space, but also is conducive to the miniaturized design of the head-mounted device.

[0031] Reference Figure 1 As shown, the first direction is Figure 1 The H direction in the second direction is Figure 1 In the T direction.

[0032] Reference Figure 1 、 Figure 4 As shown, in one embodiment, the air inlet 41 , the air inlet 1101 , the air outlet 1102 and the heat dissipation port 42 are arranged along a first direction, and the drainage channel 6 is extended along the first direction, which is the height direction of the device housing 4 .

[0033] In this specific example, the air inlet 41, the air inlet 1101, the air outlet 1102 and the heat dissipation port 42 are arranged along the height direction of the device housing 4, and the drainage channel 6 is also extended along this direction; such a layout makes the flow path of the airflow in the accommodating space 40 more concise and direct. After entering the accommodating space 40, the airflow goes straight to the drainage channel 6 to cool the heating and heat-conducting components, reducing the flow resistance of the airflow and improving the heat dissipation efficiency. At the same time, it is also conducive to the compact design of the equipment and saves space.

[0034] Reference Figure 1 As shown, in one embodiment, the length of the drainage channel 6 is greater than or equal to one half of the height of the device housing 4 and less than or equal to two thirds of the height of the device housing 4 .

[0035] In this specific example, the length of the drainage channel 6 is limited, and its length is greater than or equal to one-half of the height of the device housing 4 and less than or equal to two-thirds of the height of the device housing 4; a reasonable length of the drainage channel 6 can ensure that the airflow has sufficient time and distance to exchange heat with the heating and heat-conducting components, and fully take away the heat; at the same time, it avoids the problems of increased airflow resistance, reduced heat dissipation efficiency, and excessive device size caused by the drainage channel being too long, and achieves a balance between the heat dissipation effect and the device structure.

[0036] Reference Figure 1 As shown, in one embodiment, there is a first distance between the air inlet 41 and the first end of the guide channel 6, and a second distance between the air outlet 1102 and the heat dissipation port 42, and the first distance is greater than the second distance.

[0037] In this specific example, the first distance between the air inlet 41 and the first end of the diversion channel 6 is greater than the second distance between the air outlet 1102 and the heat dissipation port 42; this allows the airflow to have a longer path through the heating and heat-conducting components after entering the device, fully absorbing heat, and a relatively short path when discharging the device, which can quickly discharge the heat, thereby improving the heat dissipation efficiency and enabling the device to more effectively reduce the temperature.

[0038] Reference Figure 1 、 Figure 2As shown, in one embodiment, the heat-generating and heat-conducting assembly includes a support member 2, a heat sink 3, and a heating device 5. The heat sink 3 is mounted on the support member 2. The first portion of the support member 2 is in direct or indirect contact with the heating device 5. The second portion of the support member 2 is spaced apart from and opposite to the heating device 5, and the drainage channel 6 is formed therebetween. The heat sink 3 is configured to guide the heat emitted by the heating device 5 to the air inlet 1101 , and the heat is discharged from the air outlet 1102 via the cross-flow fan 1 .

[0039] In this specific example, the heat-generating and heat-conducting assembly includes a support member 2, a heat sink 3, and a heating element 5. The heat sink 3 is mounted on the support member 2, positioned close to the heating element 5 of the head-mounted device. The support member 2 is in direct or indirect contact with the heating element 5. The heat sink 3 directs the heat emitted by the heating element 5 to the air inlet 1101, where it is then discharged from the air outlet 1102 by the cross-flow fan 1. This ensures that the heat generated by the heating element 5 is efficiently conducted and discharged from the device housing 4, effectively reducing the temperature of the heating element 5, improving the heat dissipation performance and stability of the head-mounted device, and extending the life of the head-mounted device.

[0040] It can be understood that, in the support member 2 , only the first portion thereof is in direct or indirect contact with the heating device 5 ; the remaining second portion is spaced apart from the heating device 5 to form a drainage channel 6 .

[0041] Reference Figure 1 As shown, in one embodiment, the support member 2 , the heat sink 3 and the heating device 5 are arranged along a second direction, and the second direction is the thickness direction of the device housing 4 .

[0042] In this specific example, the support member 2, the heat sink 3 and the heating device 5 are arranged along the thickness direction of the device housing 4; this layout further optimizes the utilization of the accommodating space 40 inside the device housing 4, making the arrangement of the heating and heat-conducting components in the device housing 4 more compact, making full use of the thickness space of the device housing 4, which is conducive to reducing the overall size of the device, and also helps the air flow to flow evenly around the heating and heat-conducting components, thereby improving the uniformity of heat dissipation.

[0043] Reference Figure 1 As shown, in one embodiment, the heat generating and heat conducting component is arranged on a side of the air inlet 1101 away from the air outlet 1102 , and the radiator 3 is arranged facing the air inlet 1101 .

[0044] In this specific example, the heating and heat-conducting components are arranged on the side of the air inlet 1101 away from the air outlet 1102, and the radiator 3 is arranged directly opposite the air inlet 1101; thus, the radiator 3 can timely and effectively guide the heat emitted by the heating device 5 to the air inlet 1101, avoiding the heat from being emitted to other components of the head-mounted device and causing adverse effects.

[0045] Reference Figure 2 As shown, in one embodiment, the support member 2 includes a first bracket 21 and a second bracket 22, the second bracket 22 is connected to one side of the first bracket 21, and an installation space is enclosed between the first bracket 21 and the second bracket 22, the radiator 3 is installed in the installation space, and the radiator 3 is in direct or indirect contact with the first bracket 21.

[0046] In this specific example, the support member 2 includes a first bracket 21 and a second bracket 22, which together form an installation space for installing the radiator 3; and the radiator 3 is in direct or indirect contact with the first bracket 21; such a structure not only provides a stable installation position for the radiator 3, ensuring that the radiator 3 is fixed in position during the heat dissipation process, but also the contact between the radiator 3 and the first bracket 21 is conducive to heat transfer, thereby improving heat dissipation efficiency.

[0047] Reference Figure 2 As shown, in one embodiment, a thermal interface material 23 is provided between the heat sink 3 and the first bracket 21 , and the heat sink 3 is indirectly in contact with the first bracket 21 through the thermal interface material 23 .

[0048] In this specific example, a thermal interface material 23 is disposed between the heat sink 3 and the first bracket 21, so that the heat sink 3 is indirectly bonded to the first bracket 21 through the thermal interface material 23. The thermal interface material 23 can fill the small gap between the heat sink 3 and the first bracket 21, reducing the contact thermal resistance and further improving the efficiency of heat transfer between the first bracket 21 and the heat sink 3, thereby enhancing the heat dissipation performance of the entire heat dissipation module.

[0049] Reference Figure 1 As shown, in one embodiment, a protrusion 210 is provided on the side of the first bracket 21 , and the protrusion 210 is configured to directly or indirectly contact the heating device 5 .

[0050] In this specific example, a protrusion 210 is provided on the side of the first bracket 21, and the protrusion 210 is in direct or indirect contact with the heating device 5; the provision of the protrusion 210 can better fit with the surface of the heating device 5, increase the contact area, and improve the efficiency of heat transfer from the heating device 5 to the first bracket 21, so that the heat generated by the heating device 5 can be transferred more quickly to the first bracket 21 and then to the radiator 3 for heat dissipation.

[0051] It can be understood that the raised portion 210 is the first portion of the support member 2 that is in direct or indirect contact with the heating device 5 ; the remaining structure of the support member 2 is the second portion that is spaced apart from the heating device 5 .

[0052] Reference Figure 1 As shown, in one embodiment, a thermal pad is provided between the protrusion 210 and the heating device 5 , and the protrusion 210 is in indirect contact with the heating device 5 through the thermal pad.

[0053] In this specific example, a thermal pad is provided between the raised portion 210 and the heating device 5, so that the raised portion 210 is indirectly in contact with the heating device 5 through the thermal pad; the thermal pad has good flexibility and thermal conductivity, can adapt to the unevenness of the surface of the heating device 5, further increase the contact area, and at the same time reduce the contact thermal resistance, thereby ensuring the effective transfer of heat from the heating device 5 to the raised portion 210 and improving the heat dissipation effect.

[0054] Reference Figure 2 As shown, in one embodiment, the heat sink 3 includes a plurality of heat sinks 31 , and the plurality of heat sinks 31 are evenly spaced and arranged.

[0055] In this specific example, the heat sink 3 includes multiple evenly spaced fins 31. The multiple fins 31 increase the heat dissipation area, allowing heat to be more fully exchanged with the surrounding air, thereby accelerating heat dissipation and improving heat dissipation efficiency. Furthermore, the evenly spaced fins 31 facilitate smooth air flow between the fins 31, ensuring uniform heat dissipation.

[0056] In a specific example, the head-mounted device is provided with an optical-mechanical module 7, and the heating device 5 is, for example, a PCB and a main chip.

[0057] Reference Figures 3 to 7As shown, in one embodiment, the cross-flow fan 1 includes a fan casing 11, a fan body 12 and a micro motor 13, the fan casing 11 includes a first end wall 111 and a second end wall 112 arranged opposite to each other, and a first side wall 113 and a second side wall 114 arranged opposite to each other; the first end wall 111 is connected to the first side wall 113 and the second side wall 114, and the second end wall 112 is connected to the first side wall 113 and the second side wall 114; the first end wall 111, the second end wall 112, the first side wall 113 and the second side wall 114 enclose the air inlet 1101 and the air outlet 1102; the fan body 12 is arranged inside the fan casing 11; the fan body 12 includes an impeller 121 and a central shaft 122, the impeller 121 is sleeved on the outside of the central shaft 122, and the first end of the central shaft 122 is rotatably connected to the first end wall 111, and the second end of the central shaft 122 is rotatably connected to the second end wall 112; The micro motor 13 is disposed outside the fan housing 11 and is connected to a first end of the central shaft 122 to drive the central shaft 122 and the impeller 121 to rotate.

[0058] The cross-flow fan 1 provided in this embodiment includes a fan housing 11, a fan body 12, and a micromotor 13. The fan housing 11 provides space for the fan body 12. The arrangement of the fan housing's first end wall 111, second end wall 112, first side wall 113, and second side wall 114 ensures the structural stability of the fan housing 11. The impeller 121 and central shaft 122 in the fan body 12 are the core components for generating airflow. The central shaft 122's ends are respectively mounted to the first end wall 111 and the second end wall 112. The first end of the central shaft 122 is rotatably connected to the first end wall 111, and the second end of the central shaft 122 is rotatably connected to the second end wall 112, thereby enabling smooth rotation of the impeller 121. The micromotor 13 is disposed outside the fan housing 11 and connected to the central shaft 122, providing power for the rotation of the impeller 121. This cross-flow fan 1 has a compact structure, making it easy to install and use in a head-mounted device. It effectively provides airflow for the head-mounted device, providing heat dissipation or ventilation, thereby improving the user's wearing experience.

[0059] Reference Figure 3As shown, in one embodiment, the cross-flow fan 1 includes a first bearing 141 and a second bearing 142, the first end wall 111 is provided with a first bearing hole 1110, and the second end wall 112 is provided with a second bearing hole 1120, the first bearing 141 is installed in the first bearing hole 1110, and the second bearing 142 is installed in the second bearing hole 1120, the first end of the central axis 122 is inserted into the first bearing 141, and the second end of the central axis 122 is inserted into the second bearing 142.

[0060] In this specific example, by opening a first bearing hole 1110 in the first end wall 111 and installing a first bearing 141, and opening a second bearing hole 1120 in the second end wall 112 and installing a second bearing 142, the two ends of the central shaft 122 are respectively inserted into the first bearing 141 and the second bearing 142, thereby realizing a rotational connection between the central shaft 122 and the first end wall 111 and the second end wall 112; the setting of the first bearing 141 and the second bearing 142 can greatly reduce the friction force during the rotation of the central shaft 122, reduce energy loss, improve the stability and efficiency of the rotation of the impeller 121, extend the service life of the cross-flow fan 1, and also help to reduce the operating noise of the cross-flow fan 1.

[0061] Reference Figure 3 As shown, in one embodiment, the cross-flow fan 1 includes a speed regulating transmission member 15 , and the micro motor 13 is connected to the first end of the central shaft 122 via the speed regulating transmission member 15 .

[0062] In this specific example, the micromotor 13 is connected to the first end of the central axis 122 via the speed-adjusting transmission member 15. The speed-adjusting transmission member 15 allows for flexible adjustment of the speed of the impeller 121 based on the actual needs of the head-mounted device. For example, the airflow rate can be adjusted to meet diverse user needs under different ambient temperatures or usage scenarios, thereby improving the adaptability and functionality of the cross-flow fan 1.

[0063] Reference Figure 3 As shown, in one embodiment, the speed regulating transmission member 15 includes a gear box 151 and a gear set, and the gear set is arranged in the gear box 151; the output shaft of the micro motor 13 extends into the gear box 151 and is connected to the primary gear of the gear set, and the first end of the middle shaft 122 extends into the gear box 151 and is connected to the final gear of the gear set.

[0064] In this specific example, the speed regulating transmission component 15 includes a gear box 151 and a gear set arranged in the gear box 151. The output shaft of the micro motor 13 is connected to the primary gear of the gear set, and the first end of the middle shaft 122 is connected to the final gear. The gear transmission structure can accurately adjust the speed. Through the combination of gears of different sizes, the transmission ratio can be changed to achieve speed adjustment in different ranges, ensuring that the speed of the impeller 121 can accurately match the operating requirements of the head-mounted device, and the gear transmission has the advantages of smooth transmission and high efficiency.

[0065] Reference Figure 3 As shown, in one embodiment, the speed regulating transmission member 15 includes a gear box housing 152 , and the gear box 151 is disposed in the gear box housing 152 .

[0066] In this specific example, the speed regulating transmission component 15 further includes a gearbox housing 152, and the gearbox 151 is disposed within the gearbox housing 152. The gearbox housing 152 provides protection for the gearbox 151 and the gear set therein, preventing external dust, impurities, etc. from entering the gearbox 151 and affecting the normal transmission of the gear set. The gearbox housing 152 also provides a certain degree of fixation and support for the gearbox 151, thereby improving the overall stability and reliability of the speed regulating transmission component 15 and extending its service life.

[0067] Reference Figure 3 、 Figure 5 As shown, in one embodiment, the fan housing 11 includes a limiting panel 117, which is connected to the outer side of the first end wall 111, and the inner surface of the limiting panel 117 has a shape that is compatible with the gear box housing 152. The gear box housing 152 is installed on the inner side of the limiting panel 117, and the gear box housing 152 is at least partially in contact with the inner surface of the limiting panel 117.

[0068] In this specific example, the fan housing 11 includes a limiting panel 117, which is connected to the outside of the first end wall 111. Its inner surface is adapted to fit the gearbox housing 152. The gearbox housing 152 is mounted inside the limiting panel 117 and at least partially engages the inner surface of the limiting panel 117. This allows for precise positioning and securing of the gearbox housing 152, preventing the gearbox 151 from shaking or shifting during operation, ensuring the stability and accuracy of the gear train transmission, and also making the entire cross-flow fan structure more compact, facilitating installation and placement within the head-mounted device.

[0069] It can be understood that the first bearing hole 1110 not only passes through the first end wall 111 , but also passes through the limiting enclosure 117 .

[0070] Reference Figure 3As shown, in one embodiment, the cross-flow fan 1 includes a cover plate 16, the cover plate 16 is provided with a first axial hole 160, the cover plate 16 is connected to the outer side of the second end wall 112, the second bearing hole 1120 is connected to the first axial hole 160, and the second end of the central axis 122 extends into the first axial hole 160.

[0071] In this specific example, the cross-flow fan 1 includes a cover plate 16, which is connected to the outer side of the second end wall 112, and the second end of the central axis 122 extends into the first axial hole 160 opened in the cover plate 16; thereby providing an additional support point for the second end of the central axis 122, which works together with the second bearing 142 to form a more stable support structure.

[0072] Furthermore, the cover plate 16 is detachably connected to the second end wall 112 via screws 17 . When the central shaft 122 and the second bearing 142 need to be maintained or serviced, the relevant components can be easily accessed by simply removing the cover plate 16 .

[0073] A pressing piece 18 is provided against the end surface of the second bearing 142 to prevent the second bearing 142 from loosening; the pressing piece 18 defines a second axial hole, and the second end of the central shaft 122 extends into the second axial hole and the first axial hole 160 .

[0074] Reference Figure 6 As shown, in one embodiment, a positioning groove 1121 is formed on the outer side of the second end wall 112 , and the cover plate 16 is installed in the positioning groove 1121 by fasteners.

[0075] In this specific example, the second end wall 112 has a positioning slot 1121 defined on its exterior, into which the cover plate 16 is mounted using fasteners (screws 17). Positioning slots 1121 provide precise positioning for the cover plate 16, enabling accurate installation on the second end wall 112. This ensures precise connectivity between the second bearing hole 1120 and the first axial hole 160, improving installation efficiency and accuracy. The fastener connection also facilitates installation and removal of the cover plate 16, facilitating subsequent maintenance and repair.

[0076] Reference Figure 5 As shown, in one embodiment, the fan housing 11 further includes a first connecting ear 115 and a second connecting ear 116, wherein the first connecting ear 115 is connected to the first end wall 111, and the second connecting ear 116 is connected to the second end wall 112; the first connecting ear 115 is provided with a first mounting hole 1150, and the second connecting ear 116 is provided with a second mounting hole 1160; The support member 2 is provided with a first fixing hole 211 and a second fixing hole 212 . The first mounting hole 1150 cooperates with the first fixing hole 211 to allow a fastener to penetrate therethrough. The second mounting hole 1160 cooperates with the second fixing hole 212 to allow a fastener to penetrate therethrough.

[0077] In this specific example, the fan housing 11 is provided with a first connecting ear 115 and a second connecting ear 116, and is respectively provided with a first mounting hole 1150 and a second mounting hole 1160; correspondingly, the support member 2 is provided with a first fixing hole 211 and a second fixing hole 212. By inserting the fastener through the first mounting hole 1150 and the first fixing hole 211, and inserting the fastener through the second mounting hole 1160 and the second fixing hole 212, a stable connection between the cross-flow fan 1 and the support member 2 is achieved, so that the various components of the heat dissipation module can be reliably combined together, ensuring the structural stability of the heat dissipation module during operation and avoiding the heat dissipation effect being affected by loose components.

[0078] In addition, the fan housing 11 also has the following structural features: Reference Figures 5 to 7 As shown, in one embodiment, the first end wall 111, the second end wall 112, the first side wall 113 and the second side wall 114 enclose an air inlet 1101 and an air outlet 1102 that are relatively arranged and interconnected; the first side wall 113 is protruding from the first end wall 111 and the second end wall 112 on the side corresponding to the air inlet 1101 to form a first air guide portion 1130; the second side wall 114 is protruding from the first end wall 111 and the second end wall 112 on the side corresponding to the air outlet 1102 to form a second air guide portion 1140.

[0079] In this specific example, the fan housing 11 is in the shape of a long cylinder with openings on both sides; it includes a first end wall 111, a second end wall 112, a first side wall 113 and a second side wall 114, wherein the first end wall 111 and the second end wall 112 are arranged opposite to each other, and the first side wall 113 and the second side wall 114 are arranged opposite to each other; the first end wall 111, the second end wall 112, the first side wall 113 and the second side wall 114 are enclosed to form a accommodating space, and one side of the accommodating space is an air inlet 1101 and the other side is an air outlet 1102; a connecting structure for air flow to pass through is formed from the air inlet 1101 to the air outlet 1102.

[0080] The first side wall 113 is provided on the side corresponding to the air inlet 1101 and protrudes from the first end wall 111 and the second end wall 112, and the protruding structure in the first side wall 113 forms a first guide portion 1130; the second side wall 114 is provided on the side corresponding to the air outlet 1102 and protrudes from the first end wall 111 and the second end wall 112, and the protruding structure in the second side wall 114 forms a second guide portion 1140; the setting of the first guide portion 1130 helps to guide the airflow into the accommodating space, and the setting of the second guide portion 1140 helps to guide the airflow out of the accommodating space, thereby optimizing the effect of airflow entry and exhaust, improving the flow efficiency of the airflow, and thereby improving the working efficiency of the cross-flow fan used in the fan housing 11.

[0081] Reference Figure 7 As shown, in one embodiment, the cross-sections of the first side wall 113 and the second side wall 114 are both arc-shaped.

[0082] In this specific example, the first side wall 113 and the second side wall 114 are both structures with an arc-shaped cross-section. After the airflow enters the accommodating space from the air inlet 1101, it flows along the inner side surface of the first side wall 113 and the inner side surface of the second side wall 114. Since the inner side surface of the first side wall 113 and the inner side surface of the second side wall 114 are both arc surfaces, the resistance encountered by the airflow during flow can be reduced, allowing the airflow to pass through the fan housing 11 more smoothly, thereby improving the overall performance of the cross-flow fan used in the fan housing 11.

[0083] Reference Figure 7 As shown, in one embodiment, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are arc-shaped and distributed on the same circumference.

[0084] In this specific example, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are both arc-shaped and distributed on the same circumference; this makes the internal space of the fan housing 11 more regular, helps to maintain the stability and uniformity of the airflow in the fan housing 11, reduces the generation of turbulence and noise, and improves the working efficiency of the cross-flow fan.

[0085] Reference Figure 7 As shown, in one embodiment, the cross-section of the first guide portion 1130 is arc-shaped, and the first side wall 113 extends along its own trajectory on the side corresponding to the air inlet 1101 to form the first guide portion 1130; the cross-section of the second guide portion 1140 is arc-shaped, and the second side wall 114 extends along its own trajectory on the side corresponding to the air outlet 1102 to form the second guide portion 1140.

[0086] In this specific example, the first air guide portion 1130 and the second air guide portion 1140 are structures with an arc-shaped cross-section, and the first air guide portion 1130 and the second air guide portion 1140 are formed by extending along the corresponding side wall's own trajectory; in this way, the manufacturing process of the first air guide portion 1130 and the second air guide portion 1140 is relatively simple, and can enable the airflow to smoothly transition when entering and exhausting the fan housing, reduce energy loss, and improve the efficiency of the cross-flow fan.

[0087] In one embodiment, the cross section of the first drainage portion 1130 is linear, and / or the cross section of the second drainage portion 1140 is linear.

[0088] In this specific example, the cross-section of the first drainage portion 1130 and / or the cross-section of the second drainage portion 1140 is linear. The linear drainage portion is more suitable in certain specific application scenarios, such as when a more compact structure or specific airflow guidance is required.

[0089] Optionally, both the first and second air guide portions 1130, 1140 may have an arcuate cross-section; or both the first and second air guide portions 1130, 1140 may have a linear cross-section; or one of the first and second air guide portions 1130, 1140 may have an arcuate cross-section and the other may have a linear cross-section. The above shape combinations can be selected based on the application scenario, usage requirements, and the device in which the cross-flow fan is used.

[0090] In one embodiment, the angle between the cross section of the first drainage portion 1130 and the vertical direction is -60° to 60°, and / or the angle between the cross section of the second drainage portion 1140 and the vertical direction is -60° to 60°.

[0091] In this specific example, when the cross section of the first drainage portion 1130 is linear, the angle between the cross section of the first drainage portion 1130 and the vertical direction is -60°~60°. For example, the cross section of the first drainage portion 1130 is inclined toward the outside at a positive angle relative to the vertical direction, and is inclined toward the inside at a negative angle.

[0092] Similarly, when the cross section of the second drainage portion 1140 is linear, the angle between the cross section of the second drainage portion 1140 and the vertical direction is -60°~60°. For example, the cross section of the second drainage portion 1140 is inclined toward the outside at a positive angle relative to the vertical direction, and is inclined toward the inside at a negative angle.

[0093] The angle between the cross section of the first guide portion 1130 and the vertical direction and the angle between the cross section of the second guide portion 1140 and the vertical direction are set to -60°~60°. This helps to optimize the direction and speed of the airflow, effectively guiding the airflow without causing poor airflow guidance effects or other adverse effects such as airflow turbulence and increased resistance due to excessively large or small angles. This improves the performance of the cross-flow fan in specific application scenarios.

[0094] The angle between the cross section of the first drainage portion 1130 and the vertical direction and the angle between the cross section of the second drainage portion 1140 and the vertical direction can be specifically set according to different airflow requirements.

[0095] In addition, refer to Figure 4 As shown, in one embodiment, the fan body 12 is spaced apart from the first side wall 113 and the second side wall 114 , and a guide groove 1103 is formed between the fan body 12 and the first side wall 113 and the second side wall 114 , and the guide groove 1103 is connected to the air inlet 1101 and the air outlet 1102 .

[0096] In this specific example, the fan body 12 is connected to the first end wall 111 and the second end wall 112, and a guide groove 1103 is formed between the fan body 12 and the first side wall 113 and the second side wall 114; the guide groove 1103 can guide the air to flow along a specific path inside the cross-flow fan 1, so that the air can enter more smoothly from the air inlet 1101 and be discharged from the air outlet 1102 after passing through the action of the fan body 12, thereby improving the efficiency of air flow and enhancing the cross-flow fan 1's ability to guide and drive the air, thereby improving the heat dissipation effect of the heat dissipation module.

[0097] Reference Figure 4 As shown, in one embodiment, the cross-section of the first side wall 113 and the cross-section of the second side wall 114 are arc-shaped and distributed on the same circumference; the cross-section of the guide groove 1103 is also arc-shaped.

[0098] In this specific example, the cross-section of the guide groove 1103 is arc-shaped, which is conducive to ensuring the stability and smoothness of the airflow in the fan housing, reducing the generation of turbulence and noise, and improving the working efficiency of the cross-flow fan.

[0099] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A head-mounted device, characterized in that: The head-mounted device comprises: A device housing (4), wherein the device housing (4) has a storage space (40), and an air inlet (41) is provided at one end of the device housing (4), and a heat dissipation port (42) is provided at the other end; A cross-flow fan (1), the cross-flow fan (1) being arranged in the accommodating space (40), the cross-flow fan (1) having an air inlet (1101) and an air outlet (1102) that are interconnected; the air inlet (1101) being arranged close to the air inlet (41) and the two being interconnected, and the air outlet (1102) being arranged close to the heat dissipation port (42) and the two being interconnected; A heating and heat-conducting component is provided in the accommodating space (40) and between the cross-flow fan (1) and the air inlet (41); a drainage channel (6) is provided in the heating and heat-conducting component; a first end of the drainage channel (6) is communicated with the air inlet (41), and a second end of the drainage channel (6) is communicated with the air inlet (1101).

2. The head-mounted device according to claim 1, wherein: The air inlet (41), the air inlet (1101), the air outlet (1102) and the heat dissipation port (42) are arranged along a first direction, and the drainage channel (6) is extended along the first direction, and the first direction is the height direction of the device housing (4).

3. The head-mounted device according to claim 2, wherein: The length of the drainage channel (6) is greater than or equal to one half of the height of the device housing (4) and less than or equal to two thirds of the height of the device housing (4).

4. The head-mounted device according to claim 1, wherein: There is a first distance between the air inlet (41) and the first end of the drainage channel (6), and a second distance between the air outlet (1102) and the heat dissipation port (42), and the first distance is greater than the second distance.

5. The head-mounted device according to claim 1, wherein: The heating and heat-conducting assembly comprises a support member (2), a heat sink (3) and a heating device (5); the heat sink (3) is mounted on the support member (2); a first portion of the support member (2) is in direct or indirect contact with the heating device (5); a second portion of the support member (2) is spaced apart from and arranged relative to the heating device (5); and the drainage channel (6) is formed between the two. The heat sink (3) is configured to guide the heat emitted by the heating device (5) to the air inlet (1101), and the heat is discharged from the air outlet (1102) via the action of the cross-flow fan (1).

6. The head-mounted device according to claim 5, wherein: The support member (2), the radiator (3) and the heating device (5) are arranged along a second direction, and the second direction is a thickness direction of the device housing (4).

7. The head-mounted device according to claim 5, wherein: The heating and heat-conducting component is arranged on a side of the air inlet (1101) facing away from the air outlet (1102), and the radiator (3) is arranged facing the air inlet (1101).

8. The head-mounted device according to claim 5, wherein: The support member (2) comprises a first bracket (21) and a second bracket (22), the second bracket (22) being connected to one side of the first bracket (21), and an installation space being formed between the first bracket (21) and the second bracket (22), the radiator (3) being installed in the installation space, and the radiator (3) being in direct or indirect contact with the first bracket (21).

9. The head-mounted device according to claim 8, wherein: A convex portion (210) is provided on a side of the first bracket (21), and the convex portion (210) is configured to be in direct or indirect contact with the heating device (5).

10. The head-mounted device according to claim 9, wherein: A thermal pad is provided between the raised portion (210) and the heating device (5), and the raised portion (210) is in indirect contact with the heating device (5) via the thermal pad.

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