Glasses leg and augmented reality equipment

Abstract

The invention discloses a glasses leg and augmented reality equipment, and relates to the technical field of intelligent head-mounted device.The glasses leg comprises a shell and a heat dissipation module, the heat dissipation module comprises a circulating pipeline, a first heat dissipation piece and a circulating pump, the first heat dissipation piece is connected with the shell and comprises a heat dissipation face and a connecting face which are oppositely arranged, and the circulating pump is connected with the first heat dissipation piece; the circulating pipeline comprises a heat absorption section, a heat dissipation section and a communication section communicating the heat absorption section with the heat dissipation section, the heat absorption section is used for being connected with the heating element, the heat dissipation section is connected with the connecting surface, and the circulating pump is arranged on the circulating pipeline so that fluid in the circulating pipeline can circularly and sequentially flow through the heat absorption section and the heat dissipation section in a reciprocating mode. After the fluid in the heat absorption section exchanges heat with the heating element, the temperature rises, the circulating pump drives the fluid to flow to the heat dissipation section, the fluid in the heat dissipation section exchanges heat with the first heat dissipation piece, the temperature drops, the fluid is driven by the circulating pump to flow to the heat absorption section, and the circulation is repeated, so that the heat dissipation efficiency of the heating element is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent head-mounted devices, and particularly to a temple and an extended reality device. Background Art

[0002] With the proposal of the concept of the metaverse, AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality), etc., as important interface devices of the metaverse, have also developed rapidly in recent years. Therefore, the miniaturization and functional diversification of projection optical engines have gradually become their key performance parameters. However, while miniaturizing and diversifying the functions of the projection optical engine, it also brings a more compact heat dissipation layout and higher heat generation. With the continuous improvement of XR (Extended Reality) technology, there are more and more high-power Panel (display panel) optical engine products. Currently, the luminous efficiency of the Panel is relatively small, and most of the energy is converted into heat. With the increase in the power density and packaging density of the Panel, this will cause a series of problems such as a decrease in luminous efficiency and a shortening of service life. Therefore, an effective heat dissipation solution must be selected when using high-power Panel products. At the same time, the optical engine body will also absorb this part of the heat and expand and deform, driving the optical lenses in the optical engine body to shift, affecting the deviation of the optical path. When the deviation of the optical lenses is relatively large, the image projected by the optical engine will be blurred and unclear, resulting in a thermal defocus phenomenon, making the display quality of the projection optical engine not as expected. Summary of the Invention

[0003] The main object of the present invention is to propose a temple and an extended reality device, aiming to improve the heat dissipation efficiency of the display panel.

[0004] To achieve the above object, the temple proposed by the present invention includes:

[0005] A housing;

[0006] A heat dissipation module, the heat dissipation module includes a circulation pipeline, a first heat dissipation member, and a circulation pump. The first heat dissipation member is connected to the housing. The first heat dissipation member includes a heat dissipation surface and a connection surface that are oppositely arranged. The circulation pipeline includes a heat absorption section, a heat dissipation section, and a communication section that communicates the heat absorption section and the heat dissipation section. The heat absorption section is used to connect to a heating element. The heat dissipation section is connected to the connection surface. The circulation pump is arranged in the circulation pipeline so that the fluid in the circulation pipeline can circulate reciprocally through the heat absorption section and the heat dissipation section in sequence.

[0007] In one embodiment, the heat dissipation module further includes a flexible heat conductive member. The circulation pipeline is disposed within the flexible heat conductive member. The heat absorption section is connected to the heat generating element through the flexible heat conductive member, and the heat dissipation section is connected to the connection surface through the flexible heat conductive member.

[0008] In one embodiment, the heat dissipation module further includes a heat conductive shell. A plurality of inner heat conductive regions are provided on the inner wall of the heat conductive shell, and each inner heat conductive region is configured to correspond to one heat generating element. An outer heat conductive region is provided on the outer wall of the heat conductive shell, and the outer heat conductive region is connected to an end of the flexible heat conductive member away from the connection surface.

[0009] In one embodiment, the number of the outer heat conductive regions is the same as that of the inner heat conductive regions and they are arranged in one-to-one correspondence. The flexible heat conductive member includes an installation portion, a first heat exchange portion, a connection portion, and a second heat exchange portion that are connected in sequence. The first heat exchange portion is connected to the connection surface, the second heat exchange portion is connected to at least one of the outer heat conductive regions, and the circulation pump is disposed in the installation portion; the heat dissipation section is provided inside the installation portion and the first heat exchange portion, the communication section is provided inside the connection portion, and the heat absorption section is provided inside the second heat exchange portion.

[0010] In one embodiment, at least a part of the pipeline of the heat absorption section is in a zigzag structure;

[0011] And / or, at least a part of the pipeline of the heat dissipation section in the first heat exchange portion is in a zigzag structure;

[0012] And / or, the connection portion is wound around the periphery of the outer shell.

[0013] In one embodiment, the heat conductive shell is a metal heat conductive shell;

[0014] And / or, the heat dissipation module further includes a first heat conductive layer. The number of the first heat conductive layers is the same as that of the heat generating elements and they are arranged in one-to-one correspondence. One side of the first heat conductive layer is attached to the heat generating element, and the other side of the first heat conductive layer is attached to the inner heat conductive region;

[0015] And / or, the heat dissipation module further includes a second heat conductive layer. One side of the second heat conductive layer is attached to the outer heat conductive region, and the other side of the second heat conductive layer is attached to an end of the flexible heat conductive member away from the connection surface;

[0016] And / or, the heat dissipation module further includes a third heat conductive layer. One side of the third heat conductive layer is attached to the connection surface, and the other side of the third heat conductive layer is attached to an end of the flexible heat conductive member away from the heat generating element.

[0017] In one embodiment, the flexible heat conductive part includes a first splicing portion and a second splicing portion, the first splicing portion forms a first circulation groove, the second splicing portion forms a second circulation groove, and the first splicing portion and the second splicing portion are spliced ​​so that the first circulation groove and the second circulation groove form the circulation pipeline.

[0018] In one embodiment, the first heat sink includes a heat sink and a plurality of heat sink fins, the heat sink includes the heat sink surface and the connecting surface, and the plurality of heat sink fins are spaced apart from each other on the heat sink surface.

[0019] In one embodiment, the plurality of heat dissipation fins are sequentially spaced apart along the first direction, a heat dissipation duct is formed between any two adjacent heat dissipation fins, each of the heat dissipation fins extends along the second direction, the housing extends along the first direction, and the first direction is perpendicular to the second direction;

[0020] Alternatively, each of the heat dissipation fins extends along a first direction, the housing extends along the first direction, a plurality of the heat dissipation fins are sequentially spaced apart along a second direction, a heat dissipation duct is formed between any two adjacent heat dissipation fins, and the first direction is perpendicular to the second direction.

[0021] In one embodiment, the heat dissipation module further includes a fan, the fan is connected to the housing, and an air outlet side of the fan faces the heat dissipation fins.

[0022] In one embodiment, a receiving cavity is formed inside the shell, and a mounting hole connected to the receiving cavity is opened on the side wall of the shell; the first heat sink is embedded in the mounting hole, and the heat dissipation surface is exposed through the mounting hole.

[0023] In one embodiment, a heat dissipation hole communicating with the accommodating cavity is formed on the top wall of the housing, and an air inlet hole communicating with the accommodating cavity is formed on the bottom wall of the housing, so that air can enter the accommodating cavity from the air inlet hole and can leave the accommodating cavity through the heat dissipation hole;

[0024] And / or, the mounting hole is arranged on a side of the housing facing away from the human head;

[0025] And / or, the temple further comprises a heat insulation layer, the heat insulation layer is located outside the accommodating cavity, and the heat insulation layer is arranged on a side of the shell facing the human head;

[0026] And / or, the heat dissipation module further includes a second heat dissipation element, the second heat dissipation element is located outside the accommodating cavity, and the housing and the first heat dissipation element are both connected to the second heat dissipation element.

[0027] In one embodiment, the fluid flowing in the circulation pipeline is water, and the circulation pump is a water pump;

[0028] Alternatively, the fluid flowing in the circulation pipeline is liquid metal, and the circulation pump is an electromagnetic pump.

[0029] The present invention further provides an extended reality device, which includes a frame, a heating element, an optical engine body, a lens, and the above-mentioned temple. The frame includes a body part and a hinge part connected to each other. The hinge part is hinged to the housing. The heating element includes a display panel. The hinge part is provided with a receiving groove. The display panel and the optical engine body are both arranged in the receiving groove, and the display panel is connected to the optical engine body; the lens is connected to the body part, and the light-emitting side of the optical engine body is arranged facing the lens.

[0030] The technical solution of the present invention drives the fluid in the circulation pipeline to flow through the heat absorption section by using a circulation pump. The fluid in the heat absorption section exchanges heat with the heating element. After the fluid in the heat absorption section absorbs the heat generated by the heating element, its temperature rises. The circulation pump then drives this part of the fluid to flow to the heat dissipation section. The fluid in the heat dissipation section exchanges heat with the first heat dissipation member. After the fluid in the heat dissipation section transfers the heat to the first heat dissipation member for heat dissipation, its temperature drops, and then it flows to the heat absorption section under the drive of the circulation pump and exchanges heat with the heating element. This cycle is repeated, effectively improving the heat dissipation efficiency and heat dissipation effect of the heating element. The heating element can be a display panel. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0032] Figure 1 It is a schematic structural diagram of an embodiment of the extended reality device provided by the present invention;

[0033] Figure 2 It is an exploded structural diagram of an embodiment of the temple provided by the present invention;

[0034] Figure 3 It is a schematic structural diagram of an embodiment of the flexible heat conducting member provided by the present invention;

[0035] Figure 4 It is a schematic structural diagram of an embodiment of the temple provided by the present invention;

[0036] Figure 5 is Figure 4 A cross-sectional structural diagram at A-A;

[0037] Figure 6 is Figure 5 A partial enlarged schematic view at B;

[0038] Figure 7 A schematic structural view of an embodiment in which a fan and a heat insulation layer are provided in a housing according to the present invention;

[0039] Figure 8 A cross-sectional structural view of an embodiment of a housing provided by the present invention;

[0040] Figure 9 A cross-sectional structural view of an embodiment of a flexible heat conducting member provided by the present invention.

[0041] Explanation of the reference numerals in the drawings:

[0042] 100, temple; 1, housing; 11, accommodation cavity; 12, mounting hole; 13, heat dissipation hole; 14, air inlet hole; 2, heat dissipation module; 21, circulation pipeline; 211, heat absorption section; 212, heat dissipation section; 213, communication section; 22, first heat dissipation member; 221, heat dissipation plate; 2211, heat dissipation surface; 2212, connection surface; 222, heat dissipation fins; 223, heat dissipation air duct; 23, circulation pump; 3, flexible heat conducting member; 31, mounting portion; 32, first heat exchange portion; 33, connection portion; 34, second heat exchange portion; 35, first splicing portion; 351, first circulation groove; 36, second splicing portion; 361, second circulation groove; 4, heat conducting shell; 41, inner heat conducting region; 42, outer heat conducting region; 51, first heat conducting layer; 52, second heat conducting layer; 53, third heat conducting layer; 6, fan; 7, heat insulation layer;

[0043] 200, extended reality device; 201, spectacle frame; 202, heating element; 202A, display panel; 203, optical engine body; 204, lens.

[0044] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] With the proposal of the metaverse concept, AR, VR, MR, etc. as important interface devices of the metaverse have also developed rapidly in recent years. Therefore, the miniaturization and functional diversification of projection optical engines have gradually become their key performance parameters. However, while miniaturizing and diversifying the functions of the projection optical engine, it also brings a more compact heat dissipation layout and higher heat generation. With the continuous improvement of XR technology, there are more and more high-power Panel optical engine products. Currently, the luminous efficiency of the Panel is relatively low, and most of the energy is converted into heat. With the increase in the power density and packaging density of the Panel, this will cause a series of problems such as a decrease in luminous efficiency and a shortening of service life. Therefore, an effective heat dissipation solution must be selected when using high-power Panel products. At the same time, the optical engine body will also absorb this part of the heat and expand and deform, driving the optical lenses inside the optical engine body to shift, affecting the deviation of the optical path. When the deviation degree of the optical lens is relatively large, the image projected by the optical engine will be blurred and unclear, resulting in a thermal defocus phenomenon, making the display quality of the projection optical engine not as expected.

[0049] Through research by the inventors, it is found that the existing display panel generates a relatively high amount of heat. Relying on the traditional heat dissipation method, that is, the heat generated by the display panel directly exchanges heat with the air, it is obviously difficult to meet the heat dissipation requirements of the display panel. The heat generated by the display panel is difficult to dissipate in time, which will lead to a decrease in the light efficiency and a shortened lifespan of the display panel. Moreover, it will also cause the temperature of the optical engine main body connected to the display panel to rise, affecting the normal use of the optical engine main body. In addition, in order to protect the optical engine main body, a protective shell is usually set around the optical engine main body, and the optical engine main body is arranged inside the protective shell. With the development trend of product miniaturization, the size of the protective shell naturally cannot be made very large. This also leads to the fact that the space for accommodating the optical engine main body inside the protective shell cannot be made very large, and it is naturally difficult to accommodate other larger heat dissipation components for heat dissipation in this space. Therefore, the actual method of directly adding larger heat dissipation components in contact with the display panel to increase the contact area with the air and thus improve the heat dissipation efficiency is obviously difficult to implement, because a larger contact area with the air naturally means that a larger volume is required, but the space for accommodating the optical engine main body is already limited, so this solution is naturally difficult to implement.

[0050] The present invention provides a temple, aiming to improve the heat dissipation efficiency of the display panel.

[0051] Please refer to Figure 1 and Figure 2 , in an embodiment of the present invention, the temple 100 includes a housing 1 and a heat dissipation module 2. The heat dissipation module 2 includes a circulation pipeline 21, a first heat dissipation member 22, and a circulation pump 23. The first heat dissipation member 22 is connected to the housing 1. The first heat dissipation member 22 includes a heat dissipation surface 2211 and a connection surface 2212 that are oppositely arranged. The circulation pipeline 21 includes a heat absorption section 211, a heat dissipation section 212, and a communication section 213 that communicates the heat absorption section 211 and the heat dissipation section 212. The heat absorption section 211 is used to be connected to the heating element 202. The heat dissipation section 212 is connected to the connection surface 2212. The circulation pump 23 is arranged in the circulation pipeline 21 so that the fluid in the circulation pipeline 21 can circulate in turn through the heat absorption section 211 and the heat dissipation section 212.

[0052] The technical solution of the present invention is to drive the fluid in the circulation pipeline 21 to flow through the heat absorption section 211 by using the circulation pump 23. The fluid in the heat absorption section 211 exchanges heat with the heating element 202. After the fluid in the heat absorption section 211 absorbs the heat generated by the heating element 202, its temperature rises. Then the circulation pump 23 drives this part of the fluid to flow through the communication section 213 to the heat dissipation section 212. The fluid in the heat dissipation section 212 exchanges heat with the first heat dissipation member 22. After the fluid in the heat dissipation section 212 transfers the heat to the first heat dissipation member 22 for heat dissipation, its temperature will drop. The first heat dissipation member 22 then exchanges heat with the air, thereby transferring the heat to the air. The fluid with the temperature dropped then flows from the heat dissipation section 212 through the communication section 213 to the heat absorption section 211 under the drive of the circulation pump 23. The fluid in the heat absorption section 211 exchanges heat with the heating element 202 again. In this way, most of the heat generated by the heating element 202 can be timely transferred to the first heat dissipation member 22 through the fluid in the circulation pipeline 21 for heat dissipation, thereby effectively improving the heat dissipation efficiency and heat dissipation effect of the heating element 202. Taking the heating element 202 as the display panel 202A as an example, the heat dissipation module 2 effectively improves the heat dissipation efficiency and heat dissipation effect of the display panel 202A, reduces the temperature of the display panel 202A, prolongs the service life of the display panel 202A, and at the same time reduces the temperature of the optical engine main body 203, avoiding the generation of thermal defocus phenomenon, and further improving the display quality of the picture. The entire heat dissipation module 2 is small in volume, low in energy consumption and has high reliability. And in this embodiment, the circulation pump 23 drives the fluid in the circulation pipeline 21 to move to play a heat transfer role, so that the first heat dissipation member 22 can be arranged on the housing 1, without being limited to the size of the space for accommodating the optical engine main body 203. The larger first heat dissipation member 22 realizes a better heat dissipation effect, thereby effectively improving the heat dissipation efficiency of the display panel 202A; and the circulation pump 23 is used to drive the fluid in the circulation pipeline 21 to move for heat transfer, and its heat transfer efficiency can be improved by increasing the power of the pump and replacing the fluid with a higher thermal conductivity coefficient, so as to further improve the heat dissipation efficiency of the display panel 202A. It should be noted that the heating element 202 can be the display panel 202A, and the circulation pump 23 can be realized by using an existing pump.

[0053] Please refer to Figure 2 、 Figure 5 and Figure 6, in one embodiment, the heat dissipation module 2 further includes a flexible heat conducting member 3. The circulation pipeline 21 is disposed within the flexible heat conducting member 3. The heat absorption section 211 is connected to the heating element 202 through the flexible heat conducting member 3, and the heat dissipation section 212 is connected to the connection surface 2212 through the flexible heat conducting member 3. A circulation pipeline 21 is formed inside the flexible heat conducting member 3. On the one hand, it is for the convenience of the production and processing of the circulation pipeline 21; on the other hand, by connecting the flexible heat conducting member 3 to the heating element 202 and the connection surface 2212, the contact area with the heating element 202 and the connection surface 2212 can be effectively increased, thereby improving the heat dissipation efficiency. One end of the flexible heat conducting member 3 is attached to the heating element 202, and at least the heat absorption section 211 is disposed inside this end. The other end of the flexible heat conducting member 3 is attached to the connection surface 2212, and at least the heat dissipation section 212 is disposed inside this end. Compared with directly connecting the outer wall of the circulation pipeline 21 to the heating element 202 and the connection surface 2212, taking the heat absorption section 211 as an example, in this embodiment, not only the part of the flexible heat conducting member 3 where the heat absorption section 211 is provided will be attached to the heating element 202, but also the part without the circulation pipeline 21 will be attached to the heating element 202 for heat exchange, thereby effectively improving the heat dissipation efficiency of the heat dissipation module 2. It should be noted that the use of the flexible heat conducting member 3 is also considered because the temple 100 rotates frequently compared to the frame 201. Therefore, the flexible heat conducting member 3 is selected to adapt to the movement of the temple 100 relative to the frame 201, so that the temple 100 can rotate more easily relative to the frame 201. It should also be noted that the flexible heat conducting member 3 can be a thin plastic sheet or a thin metal sheet, which is not limited herein.

[0054] According to an embodiment of the present invention, the temple 100 further includes a control module (not shown in the figure). The circulation pump 23, the optical engine main body 203, and the display panel 202A are all communicatively connected to the control module. The control module can control the opening and closing of the circulation pump 23 and can also adjust the power of the circulation pump 23, thereby adjusting the flow rate of the fluid in the circulation pipeline 21 to meet different heat dissipation requirements.

[0055] Please refer to Figure 2 、 Figure 4 and Figure 5, in one embodiment, the heat dissipation module 2 further includes a heat conduction shell 4. A plurality of inner heat conduction regions 41 are provided on the inner wall of the heat conduction shell 4, and each inner heat conduction region 41 is used for corresponding to a heat generating element 202. An outer heat conduction region 42 is provided on the outer wall of the heat conduction shell 4, and the outer heat conduction region 42 is connected to one end of the flexible heat conduction member 3 away from the connection surface 2212. By providing the heat conduction shell 4 to be directly connected to the heat generating element 202, the heat generated by the plurality of heat generating elements 202 is transferred to the flexible heat conduction member 3 through the heat conduction shell 4, and then transferred to the fluid in the heat absorption section 211 through the flexible heat conduction member 3, so that the temperatures of the heat generating elements 202 are relatively close, the temperature distribution is more uniform, and large temperature differences between the heat generating elements 202 are avoided, which may lead to a reduction in the service life of the heat generating element 202 with a higher temperature and affect the normal use of the optical engine main body 203 at the same time. It should be noted that if the heat conduction shell 4 is not provided and the fluid in the circulation pipeline 21 exchanges heat with the plurality of heat generating elements 202 in sequence, it will inevitably cause the temperature of the heat generating element 202 that exchanges heat with the fluid first to be much lower than the temperature of the heat generating element 202 that exchanges heat with the fluid last. Because, after the fluid exchanges heat with the first heat generating element 202, the temperature will rise. When the fluid exchanges heat with the second heat generating element 202, since the fluid temperature has risen, the amount of heat absorbed by the fluid from the second heat generating element 202 is less than the amount of heat absorbed by the fluid from the first heat generating element 202, which results in the temperature of the second heat generating element 202 being higher than that of the first heat generating element 202. By analogy, the temperature of the heat generating element 202 that exchanges heat with the fluid last is the highest compared to the other heat generating elements 202, which leads to a significant shortening of the service life of this heat generating element 202, and the high temperature generated by this heat generating element 202 may also cause poor display of the optical engine main body 203. In this embodiment, by adding the heat conduction shell 4, each inner heat conduction region 41 of the heat conduction shell 4 corresponds to a heat generating element 202 respectively, so that the heat generated by the heat generating element 202 is directly transferred to the heat conduction shell 4 through heat conduction, and then the heat is concentrated and exchanged with the fluid in the heat absorption section 211 of the flexible heat conduction member 3 by the heat conduction shell 4. The flexible heat conduction member 3 can basically cool each heat generating element 202 simultaneously through the heat conduction shell 4, so that the temperatures of the heat generating elements 202 are basically the same, and large temperature differences between the heat generating elements 202 are avoided, which may lead to a reduction in the service life of the heat generating element 202 with a higher temperature and affect the normal use of the optical engine main body 203 at the same time. It should also be noted that the heat conduction shell 4 is generally made of a material with a high thermal conductivity, such as copper or aluminum, which is not limited here.

[0056] Please refer to Figure 2 , Figure 3 and Figure 6, in an embodiment, the number of the outer heat conduction regions 42 is the same as that of the inner heat conduction regions 41 and they are arranged in one-to-one correspondence. The flexible heat conduction member 3 includes a mounting portion 31, a first heat exchange portion 32, a connecting portion 33, and a second heat exchange portion 34 that are connected in sequence. The first heat exchange portion 32 is connected to the connection surface 2212, the second heat exchange portion 34 is connected to at least one outer heat conduction region 42, and the circulation pump 23 is arranged on the mounting portion 31. Heat dissipation sections 212 are arranged inside the mounting portion 31 and the first heat exchange portion 32, a communication section 213 is arranged inside the connecting portion 33, and a heat absorption section 211 is arranged inside the second heat exchange portion 34. By arranging the circulation pump 23 on the mounting portion 31 far from the heating element 202, sufficient installation space is provided for the circulation pump 23.

[0057] Please refer to Figure 3 , Figure 5 and Figure 6 , in an embodiment, at least part of the pipeline of the heat absorption section 211 is in a zigzag structure; in this embodiment, by arranging at least part of the pipeline of the heat absorption section 211 in a zigzag manner, the pipeline length of the heat absorption section 211 inside the second heat exchange portion 34 is increased, and then the amount of fluid that exchanges heat with the heating element 202 at the same time is increased, improving the heat dissipation efficiency of the heat dissipation module 2.

[0058] In an embodiment, at least part of the pipeline of the heat dissipation section 212 inside the first heat exchange portion 32 is in a zigzag structure; in this embodiment, by arranging at least part of the pipeline of the heat dissipation section 212 inside the first heat exchange portion 32 in a zigzag manner, the pipeline length of the heat dissipation section 212 inside the first heat exchange portion 32 is increased, and then the amount of fluid that exchanges heat with the first heat dissipation member 22 at the same time is increased, improving the heat dissipation efficiency of the heat dissipation module 2.

[0059] In an embodiment, the connecting portion 33 is wound around the periphery of the housing 1. Compared with the connecting portion 33 directly connecting the first heat exchange portion 32 and the second heat exchange portion 34 along a straight line respectively, in this embodiment, by winding the connecting portion 33 around the periphery of the housing 1, the length of the connecting portion 33 is extended, and then the length of the communication section 213 is extended, so that more fluid in the connecting end can exchange heat with air at the same time, thus improving the heat dissipation efficiency of the heat dissipation module 2.

[0060] In one embodiment, the heat-conducting shell 4 is a metal heat-conducting shell 4. In this embodiment, the metal heat-conducting shell 4 is adopted because the metal heat-conducting shell 4 has a high heat-conductivity coefficient, enabling the heat generated by each heating element 202 to undergo heat exchange with the fluid in the heat-absorbing section 211 more quickly through the metal heat-conducting shell 4, thereby improving the heat dissipation efficiency. Moreover, due to the high heat-conductivity coefficient of the metal heat-conducting shell 4 and the fact that each heating element 202 is arranged in one-to-one correspondence with the inner heat-conducting area 41 of the metal heat-conducting shell 4, the temperatures of each heating element 202 are basically the same, with a smaller temperature difference, avoiding a large temperature difference between the heating elements 202, which may lead to a reduced lifespan of the heating element 202 with a higher temperature and affect the normal use of the optical engine main body 203 at the same time. The material of the metal heat-conducting shell 4 can be high-heat-conductivity metals such as Cu1100 and Al6063, and no specific limitation is made here.

[0061] Please refer to Figure 2 , Figure 5 and Figure 6 , in one embodiment, the heat dissipation module 2 further includes a first heat-conducting layer 51. The number of the first heat-conducting layers 51 is the same as that of the heating elements 202 and they are arranged in one-to-one correspondence. One side of the first heat-conducting layer 51 is attached to the heating element 202, and the other side of the first heat-conducting layer 51 is attached to the inner heat-conducting area 41. By providing the first heat-conducting layer 51, the heating element 202 can exchange heat with the heat-conducting shell 4 more quickly through the first heat-conducting layer 51. The reason is that the heating element 202 is directly connected to the inner heat-conducting area 41. When two solid surfaces are in contact, due to the microscopic structure, the actual contact area is much smaller than the macroscopic surface area, and there are many tiny gaps between the contact surfaces, which are filled with substances with high thermal resistance such as air, affecting the heat transfer efficiency. In this embodiment, by adding the first heat-conducting layer 51, since one side of the first heat-conducting layer 51 is attached to the heating element 202 and the other side of the first heat-conducting layer 51 is attached to the inner heat-conducting area 41, the added first heat-conducting layer 51 fills the gap between the heating element 202 and the inner heat-conducting area 41, and due to the high heat-conductivity coefficient of the first heat-conducting layer 51, the heating element 202 can exchange heat with the heat-conducting shell 4 more quickly through the first heat-conducting layer 51.

[0062] In one embodiment, the heat dissipation module 2 further includes a second heat-conducting layer 52. One side of the second heat-conducting layer 52 is attached to the outer heat-conducting area 42, and the other side of the second heat-conducting layer 52 is attached to one end of the flexible heat-conducting member 3 away from the connection surface 2212. In this embodiment, by adding the second heat-conducting layer 52, the heat-conducting shell 4 can exchange heat with the fluid in the heat-absorbing section 211 more quickly through the second heat-conducting layer 52. It should be noted that the side of the second heat-conducting layer 52 away from the outer heat-conducting area 42 is attached to the second heat exchange part 34.

[0063] In one embodiment, the heat dissipation module 2 further includes a third heat conduction layer 53. One side of the third heat conduction layer 53 is attached to the connection surface 2212, and the other side of the third heat conduction layer 53 is attached to one end of the flexible heat conduction member 3 away from the heat generating element 202. In this embodiment, by adding the third heat conduction layer 53, the first heat dissipation member 22 can exchange heat with the fluid in the heat dissipation section 212 faster through the third heat conduction layer 53. It should be noted that the side of the third heat conduction layer 53 away from the connection surface 2212 is attached to the first heat exchange portion 32.

[0064] It should also be noted that the first heat conduction layer 51, the second heat conduction layer 52, and the third heat conduction layer 53 can be heat conduction materials such as heat conduction gaskets or heat conduction gels, so as to achieve a better heat conduction effect and improve the heat dissipation efficiency of the heat dissipation module 2.

[0065] Please refer to Figure 9 , in one embodiment, the flexible heat conduction member 3 includes a first splicing portion 35 and a second splicing portion 36. The first splicing portion 35 is formed with a first circulation groove 351, and the second splicing portion 36 is formed with a second circulation groove 361. The first splicing portion 35 and the second splicing portion 36 are spliced so that the first circulation groove 351 and the second circulation groove 361 enclose a circulation pipeline 21. Among them, the splicing of the first splicing portion 35 and the second splicing portion 36 enables the first circulation groove 351 and the second circulation groove 361 to jointly enclose the circulation pipeline 21; the first splicing portion 35 and the second splicing portion 36 are adhesively connected so that the first splicing portion 35 and the second splicing portion 36 form the flexible heat conduction member 3; by manufacturing the flexible heat conduction member 3 by dividing it into the first splicing portion 35 and the second splicing portion 36, and then adhesively bonding the manufactured first splicing portion 35 and the second splicing portion 36 to form the flexible heat conduction member 3, the flexible heat conduction member 3 is convenient for production and processing.

[0066] Please refer to Figure 4 and Figure 5 , in one embodiment, the first heat dissipation member 22 includes a heat dissipation plate 221 and a plurality of heat dissipation fins 222. The heat dissipation plate 221 includes a heat dissipation surface 2211 and a connection surface 2212, and the plurality of heat dissipation fins 222 are arranged at intervals on the heat dissipation surface 2211. By arranging a plurality of heat dissipation fins 222 on the heat dissipation surface 2211 of the heat dissipation plate 221, the contact area between the first heat dissipation member 22 and the air is increased, and the heat dissipation efficiency of the first heat dissipation member 22 is improved.

[0067] In one embodiment, the plurality of heat dissipation fins 222 are arranged at intervals in sequence along a first direction, and a heat dissipation air duct 223 is formed between any two adjacent heat dissipation fins 222. Each heat dissipation fin 222 extends along a second direction, and the housing 1 extends along the first direction, and the first direction and the second direction are perpendicular; among them, a heat dissipation air duct 223 is formed between any two adjacent heat dissipation fins 222, and when air flows through the heat dissipation air duct 223, it will exchange heat with the heat dissipation fins 222, ensuring that the first heat dissipation member 22 has a good heat dissipation efficiency.

[0068] In one embodiment, each heat dissipation fin 222 extends along a first direction, the housing 1 extends along the first direction, a plurality of heat dissipation fins 222 are sequentially arranged at intervals along a second direction, and a heat dissipation air duct 223 is formed between any two adjacent heat dissipation fins 222. The first direction and the second direction are perpendicular. Both the heat dissipation fins 222 and the housing 1 extend along the first direction, and the heat dissipation air duct 223 formed between any two adjacent heat dissipation fins 222 also extends along the first direction. The first direction is substantially consistent with the forward direction of the human body. Therefore, when the human body walks, the air in the heat dissipation air duct 223 will flow at an accelerated speed, thereby improving the heat dissipation efficiency of the first heat dissipation member 22.

[0069] Please refer to Figure 7 , in one embodiment, the heat dissipation module 2 further includes a fan 6. The fan 6 is connected to the housing 1, and the air outlet side of the fan 6 faces the heat dissipation fins 222. By adding the fan 6, the air flow rate around the heat dissipation fins 222 is increased, thereby improving the heat dissipation efficiency of the first heat dissipation member 22.

[0070] Please refer to Figure 2 and Figure 4 , in one embodiment, an accommodation cavity 11 is formed inside the housing 1, and an installation hole 12 communicating with the accommodation cavity 11 is formed in the side wall of the housing 1; the first heat dissipation member 22 is embedded in the installation hole 12, and the heat dissipation surface 2211 is exposed through the installation hole 12. By providing the first installation hole 12, the first heat dissipation member 22 is exposed, so that the first heat dissipation member 22 can better exchange heat with the external environment and improve the heat dissipation efficiency of the first heat dissipation member 22.

[0071] Please refer to Figure 8 , in one embodiment, a heat dissipation hole 13 communicating with the accommodation cavity 11 is formed in the top wall of the housing 1, and an air inlet hole 14 communicating with the accommodation cavity 11 is formed in the bottom wall of the housing 1, so that air flow can enter the accommodation cavity 11 from the air inlet hole 14 and can leave the accommodation cavity 11 through the heat dissipation hole 13; by providing the heat dissipation hole 13 in the housing 1, the flexible heat conducting member 3 located in the accommodation cavity 11 can also exchange heat with the air in the accommodation cavity 11 to improve the heat dissipation efficiency; the hot air in the accommodation cavity 11 will float up and be discharged from the heat dissipation hole 13, the air pressure in the accommodation cavity 11 will drop, and the outside air will flow into the accommodation cavity 11 from the air inlet hole 14 and then exchange heat with the flexible heat conducting member 3 located in the accommodation cavity 11, and so on, thereby improving the heat dissipation efficiency of the heat dissipation module 2.

[0072] Please refer to Figure 7 , in one embodiment, the installation hole 12 is provided on the side of the housing 1 facing away from the human head; by providing the installation hole 12 on the side far from the human head, the first heat dissipation member 22 can be arranged away from the human body, avoiding direct contact between the first heat dissipation member 22 and the human body and affecting the user experience.

[0073] Please refer to Figure 7 , in an embodiment, the temple 100 further includes a heat insulation layer 7. The heat insulation layer 7 is located outside the accommodation cavity 11 and is disposed on the side of the housing 1 facing the human head. By providing the heat insulation layer 7, the heat on the housing 1 is not easily conducted to the human head, thereby bringing a better user experience to the user.

[0074] In an embodiment, the heat dissipation module 2 further includes a second heat dissipation member (not shown in the figure). The second heat dissipation member is located outside the accommodation cavity 11, and both the housing 1 and the first heat dissipation member 22 are connected to the second heat dissipation member. By providing the second heat dissipation member connected to the first heat dissipation member 22, the first heat dissipation member 22 is assisted in heat dissipation, thereby improving the heat dissipation efficiency of the first heat dissipation member 22.

[0075] In an embodiment, the fluid flowing in the circulation pipeline 21 is water, and the circulation pump 23 is a water pump; alternatively, the fluid flowing in the circulation pipeline 21 is liquid metal, and the circulation pump 23 is an electromagnetic pump. If the fluid flowing in the circulation pipeline is water, the circulation pump 23 driving the fluid is a water pump, and the fluid can be pure water that does not conduct electricity, which is easy to obtain and has a low cost; the fluid in the circulation pipeline can also be liquid metal, and the pump driving the liquid metal to flow is an electromagnetic pump. The principle of the electromagnetic pump driving the liquid metal to flow is that the liquid metal has an electric current passing through and the liquid metal is located in a magnetic field, and the liquid metal will start to flow in the circulation pipeline 21 under the action of the Ampere force, flowing through the heat absorption section 211 and the heat dissipation section 212 in sequence in a cycle; compared with water, the liquid metal has a higher thermal conductivity. Taking the gallium-based alloy as an example, the melting point of the gallium-based alloy is 8°C, the solidification temperature is -4°C, and the thermal conductivity is 30 w / (m·K). The thermal conductivity of the gallium-based alloy is about 40 times that of water. Therefore, using liquid metal as the fluid can absorb and release heat faster, effectively improving the heat dissipation efficiency of the heat dissipation module 2.

[0076] Please refer to Figure 1, the present invention also provides an extended reality device 200, which includes a frame 201, a heating element 202, an optical engine body 203, a lens 204, and the above-mentioned temple 100. The frame 201 includes a body part and a hinge part that are connected to each other. The hinge part is hinged to the housing 1. The heating element 202 includes a display panel 202A. The hinge part is provided with a receiving groove. The display panel 202A and the optical engine body 203 are both arranged in the receiving groove, and the display panel 202A is connected to the optical engine body 203. The lens 204 is connected to the body part, and the light-emitting side of the optical engine body 203 is arranged towards the lens 204. For the specific structure of the temple 100, refer to the above-mentioned embodiments. Since the extended reality device 200 adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one. Among them, the extended reality device 200 can be in the structure of glasses or in the structure of other head-mounted devices.

[0077] The above is only an exemplary embodiment of the present invention, and it does not limit the protection scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the technical concept of the present invention, or any direct / indirect application in other related technical fields is included in the protection scope of the present invention.

Claims

1. A temple, characterized in that, Comprising: A housing; A heat dissipation module, the heat dissipation module includes a circulation pipeline, a first heat dissipation member, and a circulation pump. The first heat dissipation member is connected to the housing. The first heat dissipation member includes a heat dissipation surface and a connection surface arranged oppositely. The circulation pipeline includes a heat absorption section, a heat dissipation section, and a communication section connecting the heat absorption section and the heat dissipation section. The heat absorption section is used to connect to a heating element, the heat dissipation section is connected to the connection surface, and the circulation pump is arranged in the circulation pipeline so that the fluid in the circulation pipeline can circulate through the heat absorption section and the heat dissipation section in sequence.

2. The temple according to claim 1, characterized in that, The heat dissipation module further includes a flexible heat conducting member. The circulation pipeline is arranged inside the flexible heat conducting member. The heat absorption section is connected to the heating element through the flexible heat conducting member, and the heat dissipation section is connected to the connection surface through the flexible heat conducting member.

3. The temple according to claim 2, wherein, The heat dissipation module further includes a heat conducting shell. The inner wall of the heat conducting shell is provided with a plurality of inner heat conducting regions, and each inner heat conducting region is used to correspond to one heating element. The outer wall of the heat conducting shell is provided with an outer heat conducting region, and the outer heat conducting region is connected to one end of the flexible heat conducting member away from the connection surface.

4. The temple according to claim 3, characterized in that, The number of the outer heat conducting regions is the same as that of the inner heat conducting regions and they are arranged in one-to-one correspondence. The flexible heat conducting member includes an installation part, a first heat exchange part, a connection part, and a second heat exchange part connected in sequence. The first heat exchange part is connected to the connection surface, the second heat exchange part is connected to at least one outer heat conducting region, and the circulation pump is arranged in the installation part; the heat dissipation section is arranged inside the installation part and the first heat exchange part, the communication section is arranged inside the connection part, and the heat absorption section is arranged inside the second heat exchange part.

5. The temple according to claim 4, characterized in that At least part of the pipeline of the heat absorption section is in a zigzag structure; And / or, at least part of the pipeline of the heat dissipation section in the first heat exchange part is in a zigzag structure; And / or, the connection part is wound around the periphery of the housing.

6. The temple according to claim 3, characterized in that, The heat conducting shell is a metal heat conducting shell; And / or, the heat dissipation module further includes a first heat conducting layer. The number of the first heat conducting layers is the same as that of the heating elements and they are arranged in one-to-one correspondence. One side of the first heat conducting layer is attached to the heating element, and the other side of the first heat conducting layer is attached to the inner heat conducting region; And / or, the heat dissipation module further includes a second heat conducting layer. One side of the second heat conducting layer is attached to the outer heat conducting region, and the other side of the second heat conducting layer is attached to one end of the flexible heat conducting member away from the connection surface; And / or, the heat dissipation module further includes a third heat conducting layer. One side of the third heat conducting layer is attached to the connection surface, and the other side of the third heat conducting layer is attached to one end of the flexible heat conducting member away from the heating element.

7. The temple according to claim 2, wherein The flexible heat conducting member includes a first splicing part and a second splicing part. The first splicing part is formed with a first circulation groove, and the second splicing part is formed with a second circulation groove. The first splicing part and the second splicing part are spliced so that the first circulation groove and the second circulation groove enclose the circulation pipeline.

8. The temple according to claim 1, characterized in that, The first heat sink comprises a heat sink plate and a plurality of heat sink fins. The heat sink plate comprises the heat sink surface and the connection surface. The plurality of heat sink fins are arranged at intervals on the heat sink surface.

9. The temple according to claim 8, wherein, The plurality of heat dissipation fins are sequentially arranged at intervals along the first direction, a heat dissipation duct is formed between any two adjacent heat dissipation fins, each of the heat dissipation fins extends along the second direction, the housing extends along the first direction, and the first direction is perpendicular to the second direction; Alternatively, each of the heat dissipation fins extends along a first direction, the housing extends along the first direction, a plurality of the heat dissipation fins are sequentially spaced apart along a second direction, a heat dissipation duct is formed between any two adjacent heat dissipation fins, and the first direction is perpendicular to the second direction.

10. The temple according to claim 8, characterized in that, The heat dissipation module also includes a fan, which is connected to the housing, and an air outlet side of the fan faces the heat dissipation fins.

11. The temple according to any one of claims 1 to 10, characterized in that, An accommodating cavity is formed inside the shell, and a mounting hole communicating with the accommodating cavity is formed on the side wall of the shell; the first heat sink is embedded in the mounting hole, and the heat dissipation surface is exposed through the mounting hole.

12. The temple according to claim 11, characterized in that, The top wall of the shell is provided with a heat dissipation hole connected with the accommodating cavity, and the bottom wall of the shell is provided with an air inlet hole connected with the accommodating cavity, so that air can enter the accommodating cavity from the air inlet hole and can leave the accommodating cavity through the heat dissipation hole; And / or, the mounting hole is arranged on a side of the housing facing away from the human head; And / or, the temple further comprises a heat insulation layer, the heat insulation layer is located outside the accommodating cavity, and the heat insulation layer is arranged on a side of the shell facing the human head; And / or, the heat dissipation module further includes a second heat dissipation element, the second heat dissipation element is located outside the accommodating cavity, and the housing and the first heat dissipation element are both connected to the second heat dissipation element.

13. The temple according to any one of claims 1 to 10, characterized in that, The fluid flowing in the circulation pipeline is water, and the circulation pump is a water pump; Alternatively, the fluid flowing in the circulation pipeline is liquid metal, and the circulation pump is an electromagnetic pump.

14. An extended reality device, characterized in that, The extended reality device includes a frame, a heating element, an optical machine body, a lens and temples as described in any one of claims 1 to 13, the frame includes a main body and a hinged part that are connected to each other, the hinged part is hinged to the shell, the heating element includes a display panel, the hinged part is provided with a receiving groove, the display panel and the optical machine body are both arranged in the receiving groove, the display panel is connected to the optical machine body; the lens is connected to the main body, and the light emitting side of the optical machine body is arranged toward the lens.

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