WO2018119859A1 - 头戴式显示装置 - Google Patents

头戴式显示装置 Download PDF

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Publication number
WO2018119859A1
WO2018119859A1 PCT/CN2016/112977 CN2016112977W WO2018119859A1 WO 2018119859 A1 WO2018119859 A1 WO 2018119859A1 CN 2016112977 W CN2016112977 W CN 2016112977W WO 2018119859 A1 WO2018119859 A1 WO 2018119859A1
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WO
WIPO (PCT)
Prior art keywords
air
display device
mounted display
head
air outlet
Prior art date
Application number
PCT/CN2016/112977
Other languages
English (en)
French (fr)
Inventor
陕梁庆
谭鹏
张艳艳
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201680042776.7A priority Critical patent/CN107995957B/zh
Priority to PCT/CN2016/112977 priority patent/WO2018119859A1/zh
Publication of WO2018119859A1 publication Critical patent/WO2018119859A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the present application relates to the field of display devices, and in particular, to a head mounted display device.
  • the technical problem to be solved by the embodiments of the present application is to provide a head-mounted display device with good heat dissipation effect.
  • the embodiment of the present application provides a head mounted display device including a housing, a heating element, and a fan.
  • the housing internally forms a receiving cavity, and the housing includes a top plate and a bottom plate disposed opposite to each other.
  • the air inlet, the bottom plate defines an air outlet, the receiving cavity has a first air passage connecting the first air inlet and the air outlet, and the heating element is received in the receiving cavity and contacts the first In the air duct, the fan is received in the receiving cavity and faces the air outlet, and the fan draws air of the first air duct to the outside of the housing through the air outlet.
  • the present invention has the following beneficial effects:
  • the head mounted display device contacts the first air duct by providing the first air passage and extracting air of the first air duct to the fan outside the casing Therefore, the heat emitted by the heat generating component is taken away by the air of the first air passage to forcibly dissipate heat from the heat generating component, so that the head mounted display device has a good heat dissipation effect, and the receiving cavity can Maintaining a suitable working environment for the temperature allows the head-mounted display device to operate for a long time and has a long service life.
  • FIG. 1 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present application.
  • Figure 2 is a plan view of the head mounted display device of Figure 1.
  • Figure 3 is a cross-sectional view of the head mounted display device of Figure 2 taken along line III-III.
  • FIG. 4 is an exploded view of the housing of the head mounted display device of FIG. 1.
  • Fig. 5 is a view showing a positional relationship between a heat generating element and a casing of the head mounted display device shown in Fig. 1.
  • Figure 6 is a schematic illustration of another angle of the upper housing of the housing of Figure 4.
  • Figure 7 is a schematic view showing the structure of the eye shield shown in Figure 1.
  • Figure 8 is a schematic illustration of another angle of the eye shield of Figure 7.
  • Figure 9 is an enlarged schematic view showing the structure of IX in Figure 3.
  • Figure 10 is a schematic illustration of another angle of the lower housing of the housing of Figure 4.
  • an embodiment of the present invention provides a head mounted display device 100, which can be used to transmit optical signals to an eye to implement virtual reality (VR), augmented reality (AR), and mixed reality (MR). ) and other effects.
  • VR virtual reality
  • AR augmented reality
  • MR mixed reality
  • the head mounted display device 100 includes a housing 1, a heating element 2, and a fan 3.
  • the housing 1 has a receiving cavity 10 formed therein.
  • the housing 1 includes a top plate 11 and a bottom plate 12 .
  • the top plate 11 defines a first air inlet 111
  • the bottom plate 12 defines a tuyere 121 .
  • the receiving chamber 10 has a first air passage 101 connecting the first air inlet 111 and the air outlet 121.
  • the heat generating component 2 is received in the receiving cavity 10 and contacts the first air channel 101.
  • the fan 3 is received in the receiving cavity 10 and faces the air outlet 121.
  • the fan 3 extracts the air of the first air channel 101 to the outside of the casing 1 through the air outlet 121.
  • the head mounted display device 100 is configured such that the first air duct 101 and the air of the first air duct 101 are drawn out to the fan 3 outside the casing 1 and The heating element 2 Contacting the first air passage 101, so that the heat radiated from the heat generating component 2 is carried away by the air of the first air duct 101, and the heat generating component 2 is forcibly radiated, so the head mounted display
  • the heat dissipation effect of the device 100 is good, and the working environment with a suitable temperature can be maintained in the receiving cavity 10, so that the head mounted display device 100 can work for a long time and has a long service life.
  • the fan 3 draws the air of the first air duct 101 to the outside of the casing 1 through the air outlet 121, so that the first air duct 101 is in a negative pressure state, and the casing 1 outside air enters the first air passage 101 through the first air inlet 111, and the continuous rotation of the fan 3 will form a continuously flowing airflow in the first air passage 101, thereby continuously taking away the
  • the heat of the heat generating element 2 is forcibly radiated to the heat generating element 2.
  • the heating element 2 may be in whole or in part in the first air passage 101 to contact the first air passage 101, and the airflow in the first air passage 101 passes through and contacts the heating element 2, that is, The heat generating component 2 dissipates heat.
  • the heat generating component 2 includes a circuit board and a plurality of electronic components fixed to the circuit board.
  • the housing 1 further includes a front panel 14 and a rear panel 15 connected between the top panel 11 and the bottom panel 12.
  • the two ends of the rear plate 15 are respectively connected to the two ends of the front plate 14.
  • the front plate 14, the rear plate 15, the top plate 11 and the bottom plate 12 collectively surround the receiving cavity 10.
  • the top plate 11, the front plate 14, and the rear plate 15 are integrally formed to form an upper casing 1a of the casing 1, and the bottom plate 12 serves as a lower casing 1b of the casing 1, the upper
  • the housing 1a is coupled to the lower housing 1b to enclose the receiving cavity 10.
  • a first flow channel 21 is formed between the heat generating component 2 and the top plate 11, and the first flow channel 21 is a part of the first air channel 101. Air enters the first flow passage 21 from the first air inlet 111, and then flows out of the first flow passage 21 and continues to flow to the air outlet 121.
  • the housing 1 further includes two wind deflectors 13 .
  • the two wind deflectors 13 are disposed opposite each other on the top plate 11, and the two wind deflectors 13 are spaced apart from each other.
  • the heating element 2 is placed between the two wind deflectors 13 and there is a gap between the heating element 2 and each wind deflector 13.
  • the top plate 11, the heat generating component 2, and the two wind deflectors 13 collectively surround the first flow channel 21.
  • the arrangement of the two wind deflectors 13 is such that the first flow passage 21 is closed on the circumferential side, air is not scattered to the top plate 11 and the two sides of the heating element 2, but in the two wind shields
  • the plate 13 flows under the guide so as to be able to take away more heat of the heat generating component 2, so that the head mounted display device 100 has a better heat dissipation effect.
  • the two wind deflectors 13 can be partially located between the heating element 2 and the top plate 11 and partially beyond the heating element 2. At this time, a receiving space is formed between the two wind deflectors 13 and the top plate 11, and the heat generating component 2 is received in the receiving space.
  • the two wind deflectors 13 may be integrally formed with the top plate 11.
  • the first air inlet 111 is a substantially rectangular opening, and the first air inlet 111 is disposed opposite to the heating element 2 .
  • the first air inlet 111 may be a single opening or a plurality of openings.
  • the heat generating component 2 is substantially rectangular.
  • the front panel 14 defines a second air inlet 141
  • the receiving cavity 10 has a second air inlet 141 and the air outlet 121 .
  • the fan 3 is further configured to draw air of the second air duct 102 to the outside of the casing 1 through the air outlet 121.
  • One end of the second air passage 102 facing the air outlet 121 may merge with an end of the first air passage 101 facing the air outlet 121.
  • the fan 3 draws the air of the second air duct 102 to the outside of the casing 1 through the air outlet 121, so that the second air duct 102 is in a negative pressure state, the casing 1 outside air enters the second air passage 102 through the second air inlet 141, and the continuous rotation of the fan 3 will form a continuously flowing airflow in the second air passage 102, thereby continuously taking away the The heat in the second air passage 102.
  • the front panel 14 and the rear panel 15 may also be integrally formed with the bottom panel 12 to form a lower casing of the casing 1, and the top plate 11 serves as the casing 1 Upper casing.
  • the heating element 2 contacts the second air channel 102 such that the second air channel 102 can also dissipate heat from the heating element 2 .
  • the first air channel 101 and the second air channel 102 can simultaneously dissipate heat for the heat generating component 2, so that the heat dissipation element 2 has higher heat dissipation efficiency, and the heat dissipation of the head mounted display device 100 better result.
  • the heating element 2 is partially in the second air passage 102 to contact the second air passage 102.
  • the airflow in the second air passage 102 passes through and contacts the heating element 2, which is the heat generation. Component 2 dissipates heat.
  • the head mounted display device 100 further includes a second heating element, and the second heating element is received in the receiving cavity 10 and contacts the second air channel 102.
  • the first air channel 101 dissipates heat from the heat generating component 2
  • the second air channel 102 dissipates heat from the second heat generating component, respectively dissipates heat and simultaneously dissipates heat, so that the head mounted display device 100
  • the heat dissipation effect is good.
  • the second heating element is different from the first heating element.
  • the second heating element can For display modules, or other components that require heat dissipation.
  • the front panel 14 defines two first windows 142 spaced apart from each other.
  • the head mounted display device 100 further includes two display modules 4 .
  • the two display modules 4 are respectively received in the receiving cavity 10 and disposed opposite to the two first windows 142 respectively.
  • the two display modules 4 can be used to display information such as images or characters to the user, so that the head mounted display device 100 implements different effects such as virtual reality (VR), augmented reality (AR), and mixed reality (MR).
  • VR virtual reality
  • AR augmented reality
  • MR mixed reality
  • the number of the second air inlets 141 is two.
  • the two second air inlets 141 are spaced apart and disposed between the two first windows 142 and the top plate 11 respectively.
  • the number of the second air inlets 141 may also be one or three or more.
  • the head mounted display device 100 further includes an eye cover 5 .
  • the eye cover 5 includes a mounting portion 51 and an abutting portion 52 surrounding the mounting portion 51.
  • the mounting portion 51 is fixed to the front panel 14 , and an end of the abutting portion 52 away from the mounting portion 51 is for abutting a user's face to form a closed between the eye mask 5 and the user's face.
  • the mounting portion 51 is further provided with two second windows 511, and the two second windows 511 are in one-to-one correspondence with the first window 142.
  • the eye cover 5 is used to provide a closed viewing environment for the user to improve the display effect of the head mounted display device 100, such that the head mounted display device 100 is an immersive head mounted type. Display device 100.
  • the abutting portion 52 is integrally formed with the mounting portion 51 or assembled by bonding, fastener connection, snap connection, or the like.
  • the abutting portion 52 is connected to the periphery of the mounting portion 51 toward one end of the mounting portion 51 .
  • the abutting portion 52 defines a third air inlet 521
  • the mounting portion 51 defines a transition port 512 opposite to the second air inlet 141
  • the fan 3 rotates to form a connection.
  • the third air inlet 521 and the third air passage 50 of the transition port 512 are connected to the second air passage 102.
  • the third air duct 50 is located in the eye shield 5, the third air duct 50 is connected to the second air duct 102, and air enters the eye mask 5 from the third air inlet 521. And entering the second air passage 102 through the transition port 512 and the second air inlet 141, and then flowing out from the air outlet 121. At this time, the airflow in the third air duct 50 can bring the heat in the eye mask 5 into the second air duct 102, and is dissipated through the air outlet 121, thereby realizing the inside of the eye mask 5. Cooling, so that users have A closed and airy viewing environment with a good user experience.
  • the abutting portion 52 includes two side plates 522 disposed opposite to each other and an upper plate 523 connected between the two side plates 522.
  • the two side plates 522 and the upper plate 523 are integrally formed.
  • the two side plates 522 are located on both sides of the user's eye.
  • At least one of the third air inlets 521 is disposed on each of the side plates 522.
  • the eye shield 5 further includes a wind deflector 53 disposed in the abutting portion 52, the wind deflector 53 and the side panel 522 is oppositely disposed and facing the third air inlet 521.
  • a second flow channel 530 is formed between the air deflector 53 and the side plate 522, and the second flow channel 530 is a part of the third air channel 50.
  • the air deflector 53 is disposed opposite to the side panel 522 and faces the third air inlet 521, so as to block light and prevent external light from entering the eyecup 5 from the third air inlet 521. Internally, the closed viewing environment is destroyed. At the same time, the air needs to bypass the air deflector 53 to enter the second air duct 102, so that the third air duct 50 is extended, and the heat inside the eye mask 5 can be sufficiently taken away.
  • the wind in the third air passage 50 flows under a negative pressure environment, and the flow is gentle, and does not suddenly collide with the user's face, resulting in a decrease in user experience.
  • the vertical projection of the wind deflector 53 on the side plate 522 covers the third air inlet 521.
  • the air deflector 53 may be integrally formed with the mounting portion 51 or/and the abutting portion 52.
  • the mounting portion 51 is provided with a protrusion 513 protruding away from the abutting portion 52 , and the front plate 14 is provided. There is a mounting hole 143.
  • the protrusion 513 is fitted to the mounting hole 143 to fix the mounting portion 51 to the front plate 14.
  • An engaging structure (513, 143) is formed between the protrusion 513 and the mounting hole 143, so that the eye cover 5 and the housing 1 are fixed to each other.
  • the mounting hole 143 can be a through hole or a blind hole.
  • the number of the engaging structures (513, 143) is at least two.
  • the number of the protrusions 513 is at least two, and the number of the mounting holes 143 is the same as the number of the protrusions 513.
  • At least two of the engaging structures (513, 143) are spaced apart from the eyecup 5 and the housing 1.
  • the protrusion 513 may be disposed on the front panel 14 , and the mounting hole 143 may be disposed in the mounting portion 51 .
  • the head mounted display device 100 further includes a uniformity panel 6 fixed to the bottom plate 12.
  • the balance board 6 is provided with a plurality of ventilation holes 60, and the uniform wind The plate 6 faces the air outlet 121.
  • the housing 1 further includes a support wall 16 received in the receiving cavity 10, and the support wall 16 It is provided on the inner circumference of the air outlet 121.
  • the end surface 161 of the support wall 16 away from the air outlet 121 is used to carry the fan 3 , and the support wall 16 surrounds a third flow channel 160 connecting the fan 3 and the air outlet 121 .
  • the first air passage 101 and the second air passage 102 share the third flow passage 160.
  • the housing 1 further includes a reinforcing rib 17 located in the third flow passage 160 and connected to the support wall 16 for increasing the strength of the support wall 16 .
  • the reinforcing rib 17 may have a shape of a letter or a cross.
  • the reinforcing rib 17 may also extend to the air outlet 121, and the reinforcing rib 17 is connected to the peripheral side wall of the air outlet 121.
  • the support wall 16 is integrally formed with the bottom plate 12 or assembled by bonding, fastener connection, snap connection, or the like.
  • the reinforcing rib 17 is integrally formed with the supporting wall 16 or assembled by bonding, fastener connection, snap connection or the like.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种头戴式显示装置（100），包括壳体（1）、发热元件（2）以及风扇（3）。壳体内部形成收容腔（10），壳体包括相对设置的顶板（11）和底板（12），顶板开设第一进风口（111），底板开设出风口（121），收容腔内具有连接第一进风口和出风口的第一风道（101），发热元件收容于收容腔且接触第一风道，风扇收容于收容腔且正对出风口，风扇将第一风道的空气经出风口抽出至壳体外部。这种头戴式显示装置具有良好的散热效果。

Description

头戴式显示装置 技术领域
本申请涉及显示设备领域，尤其涉及一种头戴式显示装置。
背景技术
近几年随着VR虚拟现实技术的发展，各种VR虚拟现实设备(例如头戴式显示装置)已成功推向了市场。然受限于虚拟现实设备体积小，其散热成为虚拟现实设备发展中的一大技术难题。
发明内容
本申请实施例所要解决的技术问题在于提供一种散热效果好的头戴式显示装置。
为了实现上述目的，本申请实施方式采用如下技术方案：
本申请实施例提供了一种头戴式显示装置，包括壳体、发热元件以及风扇，所述壳体内部形成收容腔，所述壳体包括相对设置的顶板和底板，所述顶板开设第一进风口，所述底板开设出风口，所述收容腔内具有连接所述第一进风口和所述出风口的第一风道，所述发热元件收容于所述收容腔且接触所述第一风道，所述风扇收容于所述收容腔且正对所述出风口，所述风扇将所述第一风道的空气经所述出风口抽出至所述壳体外部。
相较于现有技术，本发明具有以下有益效果：
所述头戴式显示装置通过设置所述第一风道和将所述第一风道的空气抽出至所述壳体外部的所述风扇，并使所述发热元件接触所述第一风道，从而通过所述第一风道的空气带走所述发热元件所散发出的热量，对所述发热元件进行强制散热，因此所述头戴式显示装置散热效果好，所述收容腔内能够维持温度合适的工作环境，使得所述头戴式显示装置能够长时间工作，使用寿命长。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施 方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1是本申请实施例提供的一种头戴式显示装置的结构示意图。
图2是图1所示头戴式显示装置的俯视图。
图3是图2所示头戴式显示装置沿Ⅲ-Ⅲ线的剖视图。
图4是图1所示头戴式显示装置的壳体的爆炸图。
图5是图1所示头戴式显示装置的发热元件与壳体的位置关系的示意图。
图6是图4所示壳体的上壳体的另一角度的示意图。
图7是图1所示眼罩的结构示意图。
图8是图7所述眼罩的另一角度的示意图。
图9是图3中Ⅸ处结构的放大示意图。
图10是图4所示壳体的下壳体的另一角度的示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
请一并参阅图1至图3，本发明实施例提供一种头戴式显示装置100，可用于向眼睛发送光学信号，以实现虚拟现实(VR)、增强现实(AR)、混合现实(MR)等不同效果。
所述头戴式显示装置100包括壳体1、发热元件2以及风扇3。所述壳体1内部形成收容腔10，所述壳体1包括相对设置的顶板11和底板12，所述顶板11开设第一进风口111，所述底板12开设出风口121。所述收容腔10内具有连接所述第一进风口111和所述出风口121的第一风道101，所述发热元件2收容于所述收容腔10且接触所述第一风道101。所述风扇3收容于所述收容腔10且正对所述出风口121，所述风扇3将所述第一风道101的空气经所述出风口121抽出至所述壳体1外部，。
在本实施例中，所述头戴式显示装置100通过设置所述第一风道101和将所述第一风道101的空气抽出至所述壳体1外部的所述风扇3，并使所述发热元件2 接触所述第一风道101，从而通过所述第一风道101的空气带走所述发热元件2所散发出的热量，对所述发热元件2进行强制散热，因此所述头戴式显示装置100散热效果好，所述收容腔10内能够维持温度合适的工作环境，使得所述头戴式显示装置100能够长时间工作，使用寿命长。
可以理解的，所述风扇3将所述第一风道101的空气经所述出风口121抽出至所述壳体1外部，使得所述第一风道101处于负压状态，所述壳体1外部的空气通过所述第一进风口111进入所述第一风道101，所述风扇3持续转动则将在所述第一风道101内形成不断流动的气流，从而不断带走所述发热元件2的热量，对所述发热元件2进行强制散热。所述发热元件2可全部或部分处于所述第一风道101，以接触所述第一风道101，所述第一风道101内的气流经过、接触所述发热元件2，即可为所述发热元件2散热。
所述发热元件2包括电路板和固定于所述电路板的多个电子元器件。
如图4所示，所述壳体1还包括连接于所述顶板11和所述底板12之间的前板14和后板15。所述后板15的两端分别连接所述前板14的两端，所述前板14、所述后板15、所述顶板11及所述底板12共同围绕形成所述收容腔10。所述顶板11、所述前板14以及所述后板15一体成型以形成所述壳体1的上壳体1a，所述底板12作为所述壳体1的下壳体1b，所述上壳体1a连接所述下壳体1b以围设出所述收容腔10。
请再次参阅图3，作为一种可选实施例，所述发热元件2与所述顶板11之间形成第一流通道21，所述第一流通道21为所述第一风道101的一部分。空气自所述第一进风口111进入所述第一流通道21，而后流出所述第一流通道21、继续流向所述出风口121。
请一并参阅图3至图6，可选的，所述壳体1还包括两个挡风板13。所述两个挡风板13正对地设置在所述顶板11上，所述两个挡风板13彼此间隔。所述发热元件2放置在所述两挡风板13之间，且发热元件2与每一挡风板13之间存在一间隙。如此，所述顶板11、所述发热元件2以及所述两个挡风板13共同围设出所述第一流通道21。所述两个挡风板13的设置使得所述第一流通道21周侧封闭，空气不会向所述顶板11和所述发热元件2的两侧散开，而是在所述两个挡风板13的导向下流动，从而能够带走所述发热元件2更多的热量，使得所述头戴式显示装置100散热效果更好。
可以理解的，所述两个挡风板13可部分位于所述发热元件2与所述顶板11之间，部分超出所述发热元件2。此时，所述两个挡风板13与所述顶板11之间形成一收容空间，所述发热元件2收容于所述收容空间内。所述两个挡风板13可与所述顶板11一体成型。
可选的，所述第一进风口111为大致呈矩形开口，所述第一进风口111正对所述发热元件2设置。所述第一进风口111可以为单一开口，也可以是多个开口。所述发热元件2大致呈矩形。
请参阅图3和图4，作为一种可选实施例，所述前板14开设第二进风口141，所述收容腔10具有连接所述第二进风口141和所述出风口121的第二风道102。所述风扇3还用于将所述第二风道102的空气经所述出风口121抽出至所述壳体1外部。所述第二风道102的朝向所述出风口121的一端可与所述第一风道101的朝向所述出风口121的一端汇合。
可以理解的，所述风扇3将所述第二风道102的空气经所述出风口121抽出至所述壳体1外部，使得所述第二风道102处于负压状态，所述壳体1外部的空气通过所述第二进风口141进入所述第二风道102，所述风扇3持续转动则将在所述第二风道102内形成不断流动的气流，从而不断带走所述第二风道102内的热量。
当然，在其他实施方式中，所述前板14以及所述后板15也可与所述底板12一体成型以形成所述壳体1的下壳体，所述顶板11作为所述壳体1的上壳体。
可选的，所述发热元件2接触所述第二风道102，使得所述第二风道102也可以为所述发热元件2散热。此时，所述第一风道101和所述第二风道102可以同时为所述发热元件2散热，使得所述发热元件2的散热效率更高，所述头戴式显示装置100的散热效果更好。所述发热元件2部分处于所述第二风道102，以接触所述第二风道102，所述第二风道102内的气流经过、接触所述发热元件2，即可为所述发热元件2散热。
在其他实施方式中，所述头戴式显示装置100还包括第二发热元件，所述第二发热元件收容于所述收容腔10且接触所述第二风道102。此时，所述第一风道101为所述发热元件2散热，所述第二风道102为所述第二发热元件散热，分别散热并同时散热，使得所述头戴式显示装置100的散热效果好。可以理解的，所述第二发热元件不同于所述第一发热元件。例如，所述第二发热元件可 为显示模组，或者其他需要散热的元件。
请一并参阅图1至图4，作为一种可选实施例，所述前板14开设间隔设置的两个第一视窗142，所述头戴式显示装置100还包括两个显示模组4，所述两个显示模组4均收容于所述收容腔10且分别正对所述两个第一视窗142设置。所述两个显示模组4可用于向用户显示图像或文字等信息，使得所述头戴式显示装置100实现虚拟现实(VR)、增强现实(AR)、混合现实(MR)等不同效果。
在一种实施方式中，所述第二进风口141的数量为两个。两个所述第二进风口141间隔设置，且分别设于所述两个第一视窗142与所述顶板11之间。
当然，在其他实施方式中，所述第二进风口141的数量也可以为一个或三个以上。
请一并参阅图1至图3、图7及图8，作为一种可选实施例，所述头戴式显示装置100还包括眼罩5。所述眼罩5包括安装部51和围设在所述安装部51周边的抵接部52。所述安装部51固定至所述前板14，所述抵接部52远离所述安装部51的一端用于抵接用户面部，以在所述眼罩5与所述用户面部之间形成封闭的观影环境。所述安装部51还设有两个第二视窗511，所述两个第二视窗511与所述第一视窗142一一对应。
在本实施例中，所述眼罩5用于为用户提供封闭的观影环境，以提高所述头戴式显示装置100的显示效果，如此所述头戴式显示装置100为沉浸式头戴式显示装置100。
可选的，所述抵接部52与所述安装部51一体成型，或通过粘接、紧固件连接、卡扣连接等方式组装成一体。所述抵接部52朝向所述安装部51的一端连接于所述安装部51周边。
可选的，所述抵接部52开设有第三进风口521，所述安装部51开设有正对所述第二进风口141的过渡口512，所述风扇3转动以形成连接所述第三进风口521和所述过渡口512的第三风道50，所述第三风道50连接所述第二风道102。
在本实施例中，所述第三风道50位于所述眼罩5内，所述第三风道50连接所述第二风道102，空气自所述第三进风口521进入所述眼罩5、经所述过渡口512和所述第二进风口141进入所述第二风道102，而后自所述出风口121流出。此时，所述第三风道50内的气流可将所述眼罩5内的热量带入所述第二风道102，并通过所述出风口121散出，从而实现所述眼罩5内的散热，使用户具有 封闭且通风的观影环境，用户体验好。
可选的，所述抵接部52包括正对设置的两个侧板522和连接在所述两个侧板522之间的上板523。所述两个侧板522和所述上板523一体成型。当所述抵接部52抵接用户面部时，所述两个侧板522位于用户眼部的两侧。每个所述侧板522上均设置有至少一个所述第三进风口521。
请一并参阅图3和图7，作为一种可选实施例，所述眼罩5还包括设置在所述抵接部52内的导风板53，所述导风板53与所述侧板522相对设置且正对所述第三进风口521。所述导风板53与所述侧板522之间形成第二流通道530，所述第二流通道530为所述第三风道50的一部分。
在本实施例中，所述导风板53与所述侧板522相对设置且正对第三进风口521，从而能够遮挡光线，防止外界光线自所述第三进风口521进入所述眼罩5内部而导致封闭的观影环境被破坏。同时，空气需要绕过所述导风板53后才能进入所述第二风道102，使得所述第三风道50延长，能够充分地带走所述眼罩5内部的热量。所述第三风道50内的风是在负压环境下流动的，流动较为缓和，不会突然冲撞用户面部而导致用户体验降低。
可以理解的，所述导风板53在所述侧板522上的垂直投影覆盖所述第三进风口521。所述导风板53可与所述安装部51或/和所述抵接部52一体成型。
请一并参阅图1、图4以及图8，作为一种可选实施例，所述安装部51设有朝远离所述抵接部52方向凸出的凸起513，所述前板14设有安装孔143。所述凸起513配合所述安装孔143能够将所述安装部51固定在所述前板14上。所述凸起513与所述安装孔143之间形成一卡合结构(513、143)，使得所述眼罩5与所述壳体1之间彼此固定。
可以理解的是，所述安装孔143可以为通孔或盲孔。
可选的，所述卡合结构(513、143)的数量为至少两个。此时，所述凸起513的数量为至少两个，所述安装孔143的数量与所述凸起513的数量相同。至少两个所述卡合结构(513、143)间隔地连接所述眼罩5与所述壳体1。
当然，在其他实施方式中，所述凸起513可设于所述前板14，所述安装孔143可设于所述安装部51。
请一并参阅图4和图9，作为一种可选实施例，所述头戴式显示装置100还包括固定于所述底板12的均风板6。所述均风板6设有多个通气孔60，所述均风 板6正对所述出风口121。
请一并参阅图3、图4、图9及图10，作为一种可选实施例，所述壳体1还包括收容于所述收容腔10内的支撑壁16，所述支撑壁16围设在所述出风口121的内周缘。所述支撑壁16远离所述出风口121的端面161用于承载所述风扇3，所述支撑壁16围设出连接所述风扇3和所述出风口121的第三流通道160。此时，所述第一风道101和所述第二风道102共用所述第三流通道160。
可选的，所述壳体1还包括加强筋17，所述加强筋17位于所述第三流通道160内且连接所述支撑壁16，用于增加所述支撑壁16的强度。所述加强筋17可呈一字形或十字形。所述加强筋17也可延伸至所述出风口121，所述加强筋17连接所述出风口121的周侧壁。
可选的，所述支撑壁16与所述底板12一体成型，或通过粘接、紧固件连接、卡扣连接等方式组装成一体。所述加强筋17与所述支撑壁16一体成型，或通过粘接、紧固件连接、卡扣连接等方式组装成一体。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (15)

  1. 一种头戴式显示装置，其特征在于，包括壳体、发热元件以及风扇，所述壳体内部形成收容腔，所述壳体包括相对设置的顶板和底板，所述顶板开设第一进风口，所述底板开设出风口，所述收容腔内具有连接所述第一进风口和所述出风口的第一风道，所述发热元件收容于所述收容腔且接触所述第一风道，所述风扇收容于所述收容腔且正对所述出风口，所述风扇将所述第一风道的空气经所述出风口抽出至所述壳体外部。
  2. 如权利要求1所述的头戴式显示装置，其特征在于，所述发热元件与所述顶板之间形成第一流通道，所述第一流通道为所述第一风道的一部分。
  3. 如权利要求2所述的头戴式显示装置，其特征在于，所述壳体还包括两个挡风板，所述两个挡风板正对地设置在所述顶板上，所述发热元件放置所述两挡风板之间，所述顶板、所述发热元件以及所述两个挡风板共同围设出所述第一流通道。
  4. 如权利要求1～3任一项所述的头戴式显示装置，其特征在于，所述壳体还包括连接于所述顶板和所述底板之间的前板，所述前板开设第二进风口，所述收容腔具有连接所述第二进风口和所述出风口的第二风道，所述风扇将所述第二风道的空气经所述出风口抽出至所述壳体外部。
  5. 如权利要求4所述的头戴式显示装置，其特征在于，所述发热元件接触所述第二风道。
  6. 如权利要求4所述的头戴式显示装置，其特征在于，所述前板开设两个间隔设置的第一视窗，所述头戴式显示装置还包括两个显示模组，所述两个显示模组均收容于所述收容腔且分别正对所述两个第一视窗设置。
  7. 如权利要求6所述的头戴式显示装置，其特征在于，所述第二进风口的数量为两个，两个所述第二进风口间隔设置，且分别设于所述两个第一视窗与所述顶板之间。
  8. 如权利要求4所述的头戴式显示装置，其特征在于，所述头戴式显示装置还包括眼罩，所述眼罩包括安装部和围设在所述安装部周边的抵接部，所述安装部固定至所述前板，所述抵接部远离所述安装部的一端抵接用户面部，以在所述眼罩与所述用户面部之间形成封闭的观影环境。
  9. 如权利要求8所述的头戴式显示装置，其特征在于，所述抵接部开设有第三进风口，所述安装部开设有正对所述第二进风口的过渡口，所述眼罩内部具有连接所述第三进风口和所述过渡口的第三风道，所述第三风道连接所述第二风道，所述风扇通过所述第二风道将所述第三风道的空气经所述出风口抽出至所述壳体外部。
  10. 如权利要求9所述的头戴式显示装置，其特征在于，所述抵接部包括正对设置的两个侧板，每个所述侧板上设置有至少一个所述第三进风口。
  11. 如权利要求10所述的头戴式显示装置，其特征在于，所述眼罩还包括设置在所述抵接部内的导风板，所述导风板正对所述第三进风口，所述导风板与所述侧板之间形成第二流通道，所述第二流通道为所述第三风道的一部分。
  12. 如权利要求8所述的头戴式显示装置，其特征在于，所述安装部设有朝远离所述抵接部方向凸出的凸起，所述前板设有安装孔，所述凸起与所述安装孔相配合将所述安装部固定在所述前板上。
  13. 如权利要求1所述的头戴式显示装置，其特征在于，所述头戴式显示装置还包括固定于所述底板的均风板，所述均风板设有多个通气孔，所述均风板正对所述出风口。
  14. 如权利要求1或13所述的头戴式显示装置，其特征在于，所述壳体还包括收容于所述收容腔内的支撑壁，所述支撑壁围设在所述出风口的周缘，所述支撑壁远离所述出风口的端面用于承载所述风扇，所述支撑壁围设出连接所述风扇和所述出风口的第三流通道。
  15. 如权利要求14所述的头戴式显示装置，其特征在于，所述底板还包括加强筋，所述加强筋设于所述第三流通道内且连接所述支撑壁。
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