Highly integrated tri-proof projection panel

Abstract

This application provides a highly integrated rugged projection tablet. A ventilation channel is formed on the bottom plate, an air outlet is located on the upper side of the frame, and an air inlet is located on the left or right side. The touchscreen is sealed to the bottom shell and forms a mounting cavity. A battery and the mainboard are built into the mounting cavity. The projection optical engine assembly includes a projection optical engine and a small optical engine board located below the projection optical engine, both built into the mounting cavity. The projection optical engine is adjacent to the upper side of the frame, and projection light is emitted from a projection hole on the upper side of the frame. A cooling fan is built into the ventilation channel and adjacent to the air outlet. The projection optical engine assembly and the mainboard are located on the left and right sides of the cooling fan, respectively. The air outlet is located between the projection optical engine and the mainboard. The battery is located below the cooling fan and the mainboard. The projection optical engine and the small optical engine board are located above and below the air inlet, respectively, with the small optical engine board located beside the battery. This highly integrated rugged projection tablet has comprehensive advantages such as high integration, complete functions, good heat dissipation, and convenient portability.

Description

Technical Field

[0001] This application belongs to the field of projection tablet technology, and more specifically, relates to a highly integrated rugged projection tablet. Background Technology

[0002] As an electronic device that combines the functions of a tablet and a projector, projection tablets offer advantages such as multifunctionality. However, most projection tablets on the market today require more electrical components and have a more complex internal structure than ordinary tablets because they need to simultaneously perform multiple functions such as tablet touch control, optical engine projection, and communication. Furthermore, since the projection optical engine is a high-heat component, the design of projection tablets must meet certain heat dissipation requirements to ensure normal operation. This results in projection tablets being larger, thicker, and more complex than ordinary tablets, with higher requirements for heat dissipation performance and less portability. Especially in certain special application scenarios, such as outdoor and industrial production, projection tablets also need to meet special requirements such as waterproofing, dustproofing, and shock / drop resistance—these are known as rugged projection tablets. This further complicates the structural and functional design, making them larger, thicker, and less convenient to carry. Therefore, designing a rugged projection tablet that meets functional requirements while being more integrated internally, has better heat dissipation performance, and is more portable has become a pressing issue. Summary of the Invention

[0003] The purpose of this application is to provide a highly integrated rugged projection tablet to solve the above-mentioned technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a highly integrated rugged projection panel, comprising:

[0005] The bottom shell includes a bottom plate and a frame that protrudes forward from the outer edge of the bottom plate. A hollow ventilation channel is formed on the bottom plate. An air outlet is provided on the upper side of the frame, and an air inlet is provided on the left or right side of the frame. The openings at both ends of the ventilation channel are respectively connected to the air outlet and the air inlet.

[0006] A touch screen assembly, including a touch screen, wherein the touch screen is sealed to and encloses a base housing to form a mounting cavity;

[0007] Power supply assembly, including a battery built into the mounting cavity;

[0008] The control system includes the mainboard built into the mounting cavity;

[0009] The projection optical engine assembly includes a projection optical engine and a small optical engine board located below the projection optical engine, both built into a mounting cavity. The projection optical engine is positioned near the upper side of a frame, and a projection aperture for projecting light to exit is also provided on the upper side of the frame; and...

[0010] The heat dissipation structure includes a cooling fan built into the ventilation channel;

[0011] The cooling fan is located near the air outlet, the projection optical engine assembly and the mainboard are located on the left and right sides of the cooling fan, the air outlet is located between the projection optical engine and the mainboard, the battery is located below the cooling fan and the mainboard, the projection optical engine and the optical engine board are located on the upper and lower sides of the air inlet, and the optical engine board is located next to the battery.

[0012] Optionally, the projection optical engine assembly also includes a power cable for the optical engine board, a main cable for the optical engine board, and an optical engine signal cable. The lower end of the mainboard is provided with a first interface and a second interface on the side near the ventilation channel. The optical engine board is provided with a third interface and a fourth interface on the side near the battery. The optical engine board is provided with a fifth interface on the side away from the battery. One end of the optical engine signal cable is electrically connected to the fifth interface, and the other end of the optical engine signal cable is electrically connected to the projection optical engine located on the upper side. The power cable for the optical engine board and the main cable for the optical engine board run side by side across the outer surface of the battery. The two ends of the main cable for the optical engine board are electrically connected to the first interface and the third interface, respectively. The two ends of the power cable for the optical engine board are electrically connected to the second interface and the fourth interface, respectively.

[0013] The touchscreen assembly also includes a screen adapter cable. The bottom of the mainboard of the device is also provided with a sixth interface. The sixth interface and the first interface are located on both sides of the second interface. The touchscreen assembly is provided with a seventh interface. One end of the screen adapter cable is electrically connected to the sixth interface and crosses the front and rear sides of the battery to be electrically connected to the seventh interface.

[0014] Optionally, the ventilation channel is L-shaped, including an integrally connected first channel and a second channel. The outlet of the first channel is connected to the air outlet, the cooling fan is built into the first channel, and the outlet of the second channel is connected to the air inlet.

[0015] The heat dissipation structure also includes a main heat sink, which includes a main heat dissipation area and an extended heat dissipation area. The main heat dissipation area covers the cooling fan, and the extended heat dissipation area is located on the side of the main heat dissipation area away from the motherboard and below the projection optical engine. The extended heat dissipation area has a U-shaped design facing the air inlet opening. The first leg of the extended heat dissipation area covers the second channel, and the second leg of the extended heat dissipation area extends to the optical engine board and is attached and fixed to the outer surface of the optical engine board.

[0016] The main heat sink plate is also provided with outward protrusions for heat dissipation, which are located in the main heat dissipation area and extend to the extended heat dissipation area.

[0017] Optionally, the heat dissipation structure may also include an air inlet heat dissipation component and an air outlet heat dissipation component;

[0018] The air inlet heat dissipation assembly includes an air inlet heat dissipation plate, an air inlet heat dissipation pipe, and air inlet heat dissipation fins. One side of the air inlet heat dissipation plate is spliced ​​with the first leg of the extended heat dissipation area to jointly cover the second channel. The upper end of the air inlet heat dissipation plate extends to the projection optical engine for bonding and fixing, and the lower end of the air inlet heat dissipation plate extends to the optical engine board for bonding and fixing. The air inlet heat dissipation pipe is integrally protruding from the air inlet heat dissipation plate, and the length extension direction of the air inlet heat dissipation pipe is vertical. The air inlet heat dissipation fins protrude from the inner side of the air inlet heat dissipation plate and are built into the adjacent air inlet of the second channel.

[0019] The air outlet heat dissipation assembly includes an air outlet heat dissipation plate and air outlet heat dissipation fins. The air outlet heat dissipation plate is an irregularly shaped long strip extending in the left and right direction. The lower end of the air outlet heat dissipation plate is spliced ​​with the upper end of the main heat dissipation plate. The air outlet heat dissipation fins protrude from the inner side of the air outlet heat dissipation plate and are built into the first channel near the air outlet.

[0020] Optionally, the heat dissipation structure also includes a motherboard heat dissipation assembly, which includes a first motherboard heat pipe and a second motherboard heat pipe. The first motherboard heat pipe is L-shaped and fixed to the outer surface of the motherboard. One end of the first motherboard heat pipe extends upward, and the other end of the first motherboard heat pipe extends in the left-right direction toward the side away from the projector. The second motherboard heat pipe extends in the left-right direction and is fixed to the lower side of the outer surface of the motherboard.

[0021] The projection optical engine assembly also includes an RGB light group located next to the projection optical engine. The RGB light group includes a first light source, a second light source, and a third light source. The first light source is located near the upper side of the frame, and the second and third light sources are located near the first channel. The air outlet heat dissipation assembly also includes a first heat pipe, a second heat pipe, a first thermally conductive patch, and a second thermally conductive patch. The first thermally conductive patch is attached to the first light source. The first heat pipe is integrally protruding from the air outlet heat dissipation plate, and the end of the first heat pipe extending from the air outlet heat dissipation plate is bent downward and fixedly connected to the first thermally conductive patch. The second thermally conductive patch is attached to the second and third light sources. The second heat pipe is integrally protruding from the air outlet heat dissipation plate and is spaced below the first heat pipe. The end of the second heat pipe extending from the air outlet heat dissipation plate is bent downward and fixedly connected to the second thermally conductive patch.

[0022] Optionally, the heat dissipation structure also includes a heat dissipation bracket for the whole machine, which is set in the shape of a concave-convex plate; the outer edge of the heat dissipation bracket is provided with multiple protrusions at intervals, and the protrusions are adapted to engage with the concave holes set at corresponding positions on the inner wall of the frame.

[0023] Optionally, the highly integrated rugged projection tablet also includes a communication component, which includes an NFC antenna, a SIM card slot, and multiple radio frequency antennas. The SIM card slot includes a sub-board and a sub-board cable. The sub-board is built into the mounting cavity and is located below the mainboard and on the side of the optical engine board away from the battery. The sub-board cable is located between the side of the frame away from the optical engine board and the mainboard. The two ends of the sub-board cable are electrically connected to the mainboard and the sub-board, respectively.

[0024] Multiple radio frequency antennas are built into the mounting cavity and are spaced apart in the gap between the lower side of the frame and the battery, as well as in the gap on the upper side of the frame.

[0025] The NFC antenna is built into the mounting cavity and is located near the upper side of the frame and the ventilation channel.

[0026] Optionally, the highly integrated rugged projector also includes a front camera assembly, a rear camera assembly, and an optical engine calibration camera assembly; the front camera assembly includes a front camera and a front mounting bracket for fixing the front camera; a front camera hole is provided on the upper side of the edge area of ​​the touch screen near the frame, the front camera and the front camera hole are positioned correspondingly, and the front mounting bracket is located in the gap space between the air vent, the motherboard and the bottom shell;

[0027] The rear camera assembly includes a rear camera built into the mounting cavity, and a rear camera hole is provided on the base plate near the upper corner, with the rear camera and the rear camera hole being positioned correspondingly.

[0028] The upper side of the frame is also equipped with an optical engine calibration camera hole. The optical engine calibration camera hole and the projection hole are located on both sides of the air outlet. The optical engine calibration camera component is built into the gap space between the air outlet of the ventilation channel and the motherboard of the whole machine, and corresponds to the position of the optical engine calibration camera hole.

[0029] Optionally, the highly integrated rugged projection tablet also includes a waterproof structure, which includes a screen sealant layer, a waterproof adhesive backing for the lens, waterproof rubber rings for the buttons, a waterproof adhesive backing for the speaker, a waterproof curing adhesive layer, and waterproof rubber plugs for the interfaces; several camping lights are also provided on the back of the base plate.

[0030] The edge area on the back of the screen is sealed and waterproofed to the frame through a screen sealant layer; the optical engine calibration camera hole, projection hole, rear camera hole and camping lamp are all sealed and bonded with waterproof lenses through lens waterproof adhesive.

[0031] The highly integrated rugged projection panel also includes speakers and microphones built into the mounting cavity. The frame has speaker holes corresponding to the speaker positions and microphone holes corresponding to the microphone positions. The speaker is sealed and bonded to the inner wall of the frame with waterproof adhesive. The microphone is sealed and bonded to the inner wall of the frame with a waterproof cured adhesive layer formed after the waterproof liquid adhesive has been cured.

[0032] The frame also features multiple spaced button holes and multiple spaced interface holes. Waterproof rubber rings for the buttons are fitted inside the button holes; waterproof rubber plugs for the interfaces are fitted inside the interface holes.

[0033] Optionally, the highly integrated rugged projection panel also includes a support assembly, which includes a U-shaped support and two connectors. The U-shaped support includes a base support rod and two connecting rods. The two connectors are detachably fixed to the left and right sides of the back of the base plate. The upper end of the connecting rod is rotatably connected to the corresponding connector, and the two ends of the base support rod are connected to the lower end of the corresponding connecting rod. The U-shaped support can rotate relative to the connectors to open relative to the base plate.

[0034] The advantages of the highly integrated rugged projector tablet provided in this application are as follows: Because it integrates a touchscreen component, power supply component, control system, projection optical engine component, and heat dissipation structure, this highly integrated rugged projector tablet can simultaneously achieve touchscreen control and projection functions. Its compact structure and size are closer to that of a regular tablet, making it convenient to carry and use. Furthermore, due to the ventilation channel and the cooling fan's placement between the motherboard and the projection optical engine component, the heat dissipation structure can simultaneously cool both components, resulting in enhanced heat dissipation while maintaining a more compact structure and higher component integration. Moreover, the integrated layout of the aforementioned components saves significant space, allowing for a higher proportion of the battery within the mounting cavity. This enables the configuration of a larger, higher-capacity battery, providing better energy security for the highly integrated rugged projector tablet, resulting in smoother operation and longer battery life. In summary, this highly integrated rugged projector tablet possesses numerous comprehensive advantages, including a compact structure with high integration, high heat dissipation efficiency, diverse functions, long service life, waterproof, dustproof, and drop-proof properties, and ease of portability and use. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of a highly integrated rugged projection panel at one angle provided in an embodiment of this application;

[0037] Figure 2 An exploded view of the highly integrated rugged projection panel provided in the embodiments of this application;

[0038] Figure 3A partial structural diagram of a highly integrated rugged projection panel provided in an embodiment of this application;

[0039] Figure 4 A schematic diagram of some components of the heat dissipation structure of the highly integrated rugged projection tablet provided in the embodiments of this application;

[0040] Figure 5 An exploded view of a portion of the structure of the highly integrated rugged projection panel provided in an embodiment of this application from another angle;

[0041] Figure 6 Rear view of a highly integrated rugged projection panel provided in an embodiment of this application.

[0042] Explanation of icon numbers:

[0043] label name label name 100 bottom shell 110 base plate 120 frame 200 Touch screen components 130 ventilation duct 121 air vent 122 air inlet 310 Battery 410 motherboard 510 Projector 520 Optomechanical small board 123 Projection hole 610 Cooling fan 710 Vibration motor 721 Light-sensitive ribbon cable 730 fingerprint component 722 Light-sensitive sealing sleeve 530 Optical-mechanical small board power supply cable 540 Optical-mechanical small board main cable 896 Side button bracket 210 Screen adapter cable 131 First Channel 132 Second Channel 620 Main heat sink 621 Main heat dissipation area 622 Extended heat dissipation area 623 First foot 624 Second leg 625 Heat dissipation protrusion 630 Air intake heat dissipation components 640 Air outlet heat dissipation components 631 Air inlet heat sink 632 Air inlet heat pipe 633 Air inlet heat dissipation fins 641 Air outlet heat sink 642 Air outlet heat dissipation fins 560 RGB lighting 561 First light source 562 Second light source 563 Third light source 643 First heat pipe 644 Second heat pipe 645 First thermal pad 646 Second thermal pad 650 Motherboard heatsink 651 First motherboard heat pipe 652 Second motherboard heat pipe 660 System cooling bracket 810 NFC antenna 821 Card slot sub-board 822 Sub-board wiring 830 RF antenna 841 Front camera 842 Front mounting bracket 851 Rear camera 852 Rear camera hole 124 Optical-mechanical calibration camera hole 860 Optical-mechanical calibration camera component 871 Waterproof rubber ring for buttons 872 Waterproof adhesive backing for speakers 873 Waterproof rubber plug for interface 880 Camping lights 891 trumpet 892 microphone 125 button hole 126 Interface hole 127 Horn hole 900 bracket assembly 910 U-shaped bracket 920 connector 911 Support base rod 912 support link 111 Outer convex area 112 concave area 113 Central concave area 114 Corner concave area 893 Nameplate 930 hook up 874 Projection optical engine lens 875 Waterproof adhesive on lenses 894 button 876 Camping lamp lens 877 Optical calibration of camera lenses 878 Rear camera lens 895 Side button ribbon cable Detailed Implementation

[0044] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0046] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this application are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0047] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

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

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

[0050] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0051] This application provides a highly integrated rugged projection panel.

[0052] Please see Figures 1 to 6In one embodiment, the highly integrated rugged projection tablet includes a base shell 100, a touchscreen assembly 200, a power supply assembly, a control system, a projection optical engine assembly, and a heat dissipation structure. Specifically, the base shell 100 includes a base plate 110 and a frame 120 protruding forward from the outer edge of the base plate 110. A hollow ventilation channel 130 is formed on the base plate 110. An air outlet 121 is provided on the upper side of the frame 120, and an air inlet 122 is provided on the left or right side of the frame 120. The openings at both ends of the ventilation channel 130 are respectively connected to the air outlet 121 and the air inlet 122. The touchscreen assembly 200 includes a touchscreen, which is sealed to the base shell 100 and encloses it to form a mounting cavity. The power supply assembly includes a battery 310 built into the mounting cavity. The control system includes a mainboard 410 built into the mounting cavity. The projection optical engine assembly includes a projection optical engine 510 and an optical engine board 520 located below the projection optical engine 510, both built into the mounting cavity. The projection optical engine 510 is positioned near the upper side of the frame 120, and the upper side of the frame 120 also has a projection hole 123 for projecting light to escape. The heat dissipation structure includes a cooling fan 610 built into the ventilation channel 130. The cooling fan 610 is positioned near the air outlet 121. The projection optical engine assembly and the mainboard 410 are located on the left and right sides of the cooling fan 610, respectively. The air outlet 121 is located between the projection optical engine 510 and the mainboard 410. The battery 310 is located below the cooling fan 610 and the mainboard 410. The projection optical engine 510 and the optical engine board 520 are located on the upper and lower sides of the air inlet 122, respectively, with the optical engine board 520 located beside the battery 310.

[0053] Based on this design, in this embodiment, since the touch screen component 200, power supply component, control system, projection optical engine component, and heat dissipation structure are integrated, this highly integrated rugged projection tablet can simultaneously realize the tablet function controlled by touch screen and the projection function. Its compact structure and size are closer to that of a regular tablet, making it convenient to carry and use. Simultaneously, due to the ventilation channel 130 and the cooling fan 610 located between the mainboard 410 and the projection optical engine component, the heat dissipation structure can simultaneously dissipate heat from both, thus enhancing heat dissipation while maintaining a more compact structure and higher component integration. Furthermore, in the aforementioned structural layout, the integrated layout of multiple components saves a significant amount of space, allowing for a higher proportion of the battery 310 within the mounting cavity. This enables the configuration of a larger, higher-capacity battery 310, providing better energy security for the highly integrated rugged projection tablet, resulting in smoother tablet operation and longer battery life. In summary, this highly integrated rugged projection tablet boasts numerous advantages, including a compact structure, high integration, efficient heat dissipation, diverse functions, long service life, waterproof, dustproof, drop-proof, and easy portability.

[0054] It should be noted that this highly integrated rugged projection tablet is rectangular in shape. Using conventional usage, the direction from the base plate 110 to the touchscreen is considered the back-to-front direction. The side with the projection hole 123 is the upper side of the frame 120. The components within the mounting cavity have their front sides facing the touchscreen assembly 200 as the front side and their rear sides facing the base plate 110 as the rear side. In the front view after removing the base plate 110, in this embodiment, the air inlet 122 is located on the right side of the frame 120, the air outlet 121 is located in the upper center of the frame 120, the projection optical engine assembly is located on the right side of the cooling fan 610, and the mainboard 410 is located on the right side of the cooling fan 610. Of course, in other embodiments, the components can also be arranged in a mirror-symmetric manner with the vertical axis of symmetry as in this embodiment; that is, the air inlet 122 can be located on the left side of the frame 120, and correspondingly, the projection optical engine assembly can be located on the left side of the cooling fan 610, while the mainboard 410 can be located on the right side of the cooling fan 610. As a rugged projection tablet, the bottom shell 100 is made of rigid materials, such as, but not limited to, rigid plastics and metal sheets, to provide good support strength and protection.

[0055] In addition, this highly integrated rugged projector tablet also includes other components, such as, but not limited to, a vibration motor 710, a light sensor, and a fingerprint sensor 730. The vibration motor 710 is located in the gap between the mainboard 410 and the upper inner wall of the frame 120, and is electrically connected to the mainboard 410, primarily providing tactile feedback. The light sensor is located in the gap adjacent to the mainboard 410, and includes a light sensor, a light sensor cable 721, and a light sensor sealing sleeve 722. The light sensor is sealed by the light sensor sealing sleeve 722 and electrically connected to the mainboard 410 via the light sensor cable 721. Since projector tablets typically use a projection screen / or wall display interface, their brightness is greatly affected by ambient light. The light sensor in the projector tablet primarily undertakes the core tasks of adaptive ambient light adjustment and energy saving and eye protection, making its role more crucial than in ordinary tablets. To better realize fingerprint recognition and conform to natural operating habits, the fingerprint sensor 730 adopts a side-capacitive method and is located near the frame 120.

[0056] Please see Figure 2 and Figure 3In this embodiment, the projection optical engine assembly further includes an optical engine board power cable 530, an optical engine board main cable 540, and an optical engine signal cable. The lower end of the main board 410 is provided with a first interface and a second interface on the side near the ventilation channel 130. The optical engine board 520 is provided with a third interface and a fourth interface on the side near the battery 310. The optical engine board 520 is provided with a fifth interface on the other side away from the battery 310. One end of the optical engine signal cable is electrically connected to the fifth interface, and the other end of the optical engine signal cable is electrically connected to the projection optical engine 510 located on the upper side. The optical engine board power cable 530 and the optical engine board main cable 540 run side by side across the outer surface of the battery 310. The two ends of the optical engine board main cable 540 are electrically connected to the first interface and the third interface, respectively. The two ends of the optical engine board power cable 530 are electrically connected to the second interface and the fourth interface, respectively. It is understandable that the aforementioned cable and interface configurations facilitate the connection between the mainboard 410 and the optical engine board 520, and between the optical engine board 520 and the projection optical engine 510. Moreover, the cables used to transmit signals are not too long, thus minimizing signal interference.

[0057] Furthermore, such as Figure 2 As shown, the touchscreen assembly 200 also includes a screen adapter cable 210. The lower end of the mainboard 410 is provided with a sixth interface, which is located on either side of the second interface, along with the first interface. The touchscreen assembly 200 also has a seventh interface. One end of the screen adapter cable 210 is electrically connected to the sixth interface, and then crosses the front and rear sides of the battery 310 before connecting to the seventh interface. This allows for electrical connection between the touchscreen assembly 200 and the mainboard 410, while keeping them away from heat sources and reducing signal interference. Furthermore, the battery 310 can also be connected to a corresponding interface on the lower side of the mainboard 410 via a power cable, enabling power supply and resulting in a shorter power cable.

[0058] Please see Figures 2 to 5 In this embodiment, the ventilation channel 130 is L-shaped, including a first channel 131 and a second channel 132 that are integrally connected. The outlet of the first channel 131 is connected to the air outlet 121. The cooling fan 610 is built into the first channel 131, and the outlet of the second channel 132 is connected to the air inlet 122. Here, the main heat sources in the highly integrated rugged projection tablet include the projection optical engine assembly and the mainboard 410. The heat dissipation of the projection optical engine assembly is much higher than that of the mainboard 410. The L-shaped ventilation channel 130 not only effectively extends the length of ventilation and heat dissipation within a limited space, but also better meets the greater heat dissipation needs of the projection optical engine assembly, thereby effectively enhancing heat dissipation performance.

[0059] Furthermore, such as Figures 2 to 4As shown, the heat dissipation structure also includes a main heat sink 620, which includes a main heat dissipation area 621 and an extended heat dissipation area 622. The main heat dissipation area 621 covers the cooling fan 610, and the extended heat dissipation area 622 is located on the side of the main heat dissipation area 621 away from the main motherboard 410 and below the projection optical engine 510. The extended heat dissipation area 622 has a U-shaped design that opens towards the air inlet 122. The first leg 623 of the extended heat dissipation area 622 partially covers the second channel 132, and the second leg 624 of the extended heat dissipation area 622 extends to the optical engine board 520 and is fixedly attached to the outer surface of the optical engine board 520. The main heat sink 620 also has an outwardly protruding heat dissipation protrusion 625, which is located within the main heat dissipation area 621 and extends to the extended heat dissipation area 622. In this embodiment, the main heat sink 620 is made of copper plate. Of course, in other embodiments, it can also be made of other materials with excellent heat dissipation. Here, in addition to being dissipated by the cooling fan 610 accelerating the airflow in the ventilation channel 130, heat can also be dissipated through metal heat conduction. That is, the main heat dissipation area 621 covers the cooling fan 610, the first leg 623 of the extended heat dissipation area 622 partially covers the second channel 132, and the second leg 624 of the extended heat dissipation area 622 extends to the optomechanical board 520 and is attached and fixed to the outer surface of the optomechanical board 520. In this way, most of the heat is conducted to the ventilation channel 130 and then dissipated into the interior of the plate through the rapid airflow. A small portion of the heat can also be dissipated through the thermal radiation of the metal itself.

[0060] Further, please refer to Figure 4In this embodiment, the heat dissipation structure further includes an air inlet heat dissipation assembly 630 and an air outlet heat dissipation assembly 640. The air inlet heat dissipation assembly 630 includes an air inlet heat dissipation plate 631, an air inlet heat dissipation pipe 632, and air inlet heat dissipation fins 633. One side of the air inlet heat dissipation plate 631 is spliced ​​with the first leg 623 of the extended heat dissipation area 622 to jointly cover the second channel 132. The upper end of the air inlet heat dissipation plate 631 extends to the projection optical engine 510 and is attached and fixed, and the lower end of the air inlet heat dissipation plate 631 extends to the optical engine board 520 and is attached and fixed. The air inlet heat dissipation pipe 632 is integrally protruding from the air inlet heat dissipation plate 631, and the length extension direction of the air inlet heat dissipation pipe 632 is vertical. The air inlet heat dissipation fins 633 protrude from the inner side of the air inlet heat dissipation plate 631 and are built into the second channel 132 near the air inlet 122. Here, by extending the upper and lower ends of the air inlet heat sink 631 and the air inlet heat sink 632 to the projection optical engine 510 and the optical engine board 520 respectively for bonding and fixing, the large amount of heat generated by the two components can be quickly conducted to the air inlet 122, and then the heat can be quickly dissipated through rapid air convection and thermal radiation. The air outlet heat dissipation assembly 640 includes an air outlet heat sink 641 and an air outlet heat dissipation fin 642; the air outlet heat sink 641 is an irregularly shaped long strip extending in the left and right direction, and the lower end of the air outlet heat sink 641 is spliced ​​with the upper end of the main heat sink 620. The air outlet heat dissipation fin 642 protrudes from the inner side of the air outlet heat sink 641 and is built into the first channel 131 adjacent to the air outlet 121, thus achieving rapid heat dissipation at the air outlet 121.

[0061] Please see Figures 2 to 4In this embodiment, the projection optical engine assembly further includes an RGB lamp group 560 disposed beside the projection optical engine 510. The RGB lamp group 560 includes a first light source 561, a second light source 562, and a third light source 563. The first light source 561 is disposed near the upper side of the frame 120, and the second light source 562 and the third light source 563 are disposed near the first channel 131. The air outlet heat dissipation assembly 640 further includes a first heat pipe 643, a second heat pipe 644, a first thermally conductive patch 645, and a second thermally conductive patch 646. The first thermally conductive patch 645 is attached to the first... At light source 561, a first heat sink 643 is integrally protruding from the air outlet heat sink 641, and the end of the first heat sink 643 extending from the air outlet heat sink 641 is bent downwards and fixedly connected to the first thermally conductive patch 645. A second thermally conductive patch 646 is attached to the second light source 562 and the third light source 563. A second heat sink 644 is integrally protruding from the air outlet heat sink 641 and is spaced below the first heat sink 643. The end of the second heat sink 644 extending from the air outlet heat sink 641 is bent downwards and fixedly connected to the second thermally conductive patch 646. Here, the first light source 561, the second light source 562, and the third light source 563 can be one of a red LED chip, a green LED chip, and a blue LED chip, respectively. It is understandable that the RGB light group 560, which generates a large amount of heat, can achieve rapid heat conduction through the bonding of three thermal pads, and then efficiently transfer the heat to the exhaust heat sink 641 through the corresponding heat pipe, and then dissipate it through the exhaust heat sink component 640.

[0062] Furthermore, such as Figures 2 to 4 The heat dissipation structure also includes a motherboard heat dissipation assembly 650, which includes a first motherboard heat pipe 651 and a second motherboard heat pipe 652. The first motherboard heat pipe 651 is L-shaped and fixed to the outer surface of the motherboard 410. One end of the first motherboard heat pipe 651 extends upward, and the other end extends in the left-right direction toward the side away from the projector 510. The second motherboard heat pipe 652 extends in the left-right direction and is fixed to the lower side of the outer surface of the motherboard 410. It can be understood that the arrangement of the first motherboard heat pipe 651 and the second motherboard heat pipe 652 can quickly conduct and dissipate the heat emitted by the motherboard 410.

[0063] It should be noted that the main heat sink 620, the inlet heat sink 631, and the outlet heat sink 641 primarily function as heat spreaders, i.e., planar heat dissipation plates. Since copper has a much higher thermal conductivity than aluminum, copper heat sinks can be directly attached to the surface of components such as the optomechanical board 520, serving as the primary heat dissipation medium. The inlet heat pipe 632, the first heat pipe 643, the second heat pipe 644, the first mainboard heat pipe 651, and the second mainboard heat pipe 652 enable long-distance, efficient heat transfer, with thermal conductivity far exceeding that of the heat sinks. The heat pipes can be used individually, integrally molded, or welded to the heat sinks. This achieves both efficient heat transfer and rapid heat dissipation from the components, significantly improving overall heat dissipation performance. Furthermore, the arrangement of the inlet heat sink fins 633 and the outlet heat sink fins 642 further increases the heat exchange area, enabling rapid heat dissipation.

[0064] Please see Figure 2 In this embodiment, the heat dissipation structure also includes a heat dissipation bracket 660, which is arranged in a concave-convex plate shape. Multiple protrusions are spaced along the outer edge of the heat dissipation bracket 660, and these protrusions engage with corresponding recesses on the inner wall of the frame 120. Specifically, the heat dissipation bracket 660 is made of aluminum alloy and serves to support and separate the underlying chips, as well as enhance heat dissipation. Of course, in other embodiments, the heat dissipation bracket 660 can also be made of other metal materials with good heat dissipation performance, such as, but not limited to, copper. The connection between the heat dissipation bracket 660 and the bottom shell 100 is not limited to snap-fit ​​connections; it can also be, but not limited to, screw connections. However, the snap-fit ​​method in this embodiment makes the assembly and disassembly of the heat dissipation bracket 660 more convenient.

[0065] Please see Figure 2 In this embodiment, the highly integrated rugged projection tablet also includes a communication component, which includes an NFC antenna 810, a SIM card slot, and multiple radio frequency antennas 830. The SIM card slot includes a sub-board 821 and a sub-board cable 822. The sub-board 821 is built into the mounting cavity and is located below the mainboard 410 and on the side of the optical engine board 520 away from the battery 310. The sub-board cable 822 is located between the side of the frame 120 away from the optical engine board 520 and the mainboard 410. The two ends of the sub-board cable 822 are electrically connected to the mainboard 410 and the sub-board 821, respectively. By placing the SIM card slot in the gap between the side of the frame 120, the mainboard 410, and the battery 310, the integration of the tablet can be further improved, the internal space utilization can be increased, and it is also convenient to connect the sub-board cable 822 to the mainboard 410. The sub-board cable 822 is also shorter, which helps to reduce signal interference.

[0066] Furthermore, multiple radio frequency antennas 830 are all built into the mounting cavity and are spaced apart in the gap between the lower side of the frame 120 and the battery 310, as well as in the gap on the upper side of the frame 120. An NFC antenna 810 is built into the mounting cavity and is positioned near the upper side of the frame 120 and the ventilation channel 130. Specifically, in this embodiment, a total of six radio frequency antennas 830 are spaced apart around the frame 120, which makes full use of the corner space, further improving the integration of the tablet. The multi-point distribution also facilitates better reception of various signals, enabling global frequency band communication. Simultaneously, an NFC antenna 810 is also provided to achieve near-field wireless communication functionality. The position of the NFC antenna 810 is convenient for connecting to the mainboard 410 and is also far from the main heat source, thereby minimizing signal interference.

[0067] Please see Figure 2 In this embodiment, the highly integrated rugged projection tablet also includes a front camera assembly, a rear camera assembly, and an optical engine calibration camera assembly 860. The front camera assembly includes a front camera 841 and a front mounting bracket 842 for fixing the front camera 841. A front camera hole is provided on the upper side of the edge area of ​​the touch screen near the frame 120, with the front camera 841 corresponding to the position of the front camera hole. The front mounting bracket 842 is located in the gap space between the air vent 121, the mainboard 410, and the bottom shell 100. The rear camera assembly includes a rear camera 851 built into the mounting cavity, and a rear camera hole 852 is provided on the bottom plate 110 near the upper corner, with the rear camera 851 corresponding to the position of the rear camera hole 852. It can be understood that the front camera 841 is fixed in the gap next to the air vent 121 by the front camera bracket, which is beneficial for heat dissipation and improving space utilization, while also making it convenient for users to use the front camera function. The rear camera is preferably positioned near the mainboard 410 to facilitate electrical connection and keep it away from the high-heat projection optical engine components. At the same time, the rear camera hole 852 on the base plate 110 will not be blocked by the bracket assembly 900, thus enabling the rear camera function to be successfully implemented.

[0068] Furthermore, an optical engine calibration camera hole 124 is provided on the upper side of the frame 120. The optical engine calibration camera hole 124 and the projection hole 123 are located on both sides of the air outlet 121. The optical engine calibration camera assembly 860 is built into the gap space between the air outlet 121 of the ventilation channel 130 and the mainboard 410, and corresponds to the position of the optical engine calibration camera hole 124. Here, the optical engine calibration camera assembly 860 is electrically connected to the mainboard 410 and the optical engine board 520 to realize the autofocus projection function. The position setting of the optical engine calibration camera assembly 860 makes full use of the gap space in the mounting cavity, and the actual position of the optical engine calibration camera hole 124 is also close to the middle of the upper side of the frame 120, which is more conducive to the realization of the autofocus function. Of course, the ribbon cable connection between the optical engine calibration camera assembly 860 and the mainboard 410 and the optical engine board 520 is also more convenient and is far away from the main heat source projection optical engine assembly.

[0069] Please see Figures 1 to 2 as well as Figures 5 to 6 In this embodiment, the highly integrated rugged projection tablet also includes a waterproof structure, which includes a screen sealing layer, a lens waterproof adhesive 875, a button waterproof rubber ring 871, a speaker waterproof adhesive 872, a waterproof curing layer, and an interface waterproof rubber plug 873. Several camping lights 880 are also provided on the back of the base plate 110. These camping lights 880 are electrically connected to the battery 310 and the mainboard 410 via connecting cables. The battery 310 provides power to the camping lights 880. The camping lights 880 can be turned on and off by clicking the corresponding icon or pressing the corresponding button 894 on the touchscreen, thus achieving the lighting function. This makes the highly integrated rugged projection tablet more multifunctional and more suitable for outdoor environments. The heat generated by the camping lights 880 can be dissipated through the base plate 110 and the mainboard heat dissipation bracket 660.

[0070] Here, the edge area on the back of the screen is sealed and waterproofed to the frame 120 through a screen sealant layer; waterproof lenses are sealed and bonded to the optical engine calibration camera hole 124, projection hole 123, rear camera hole 852, and camping lamp 880 through lens waterproof adhesive 875. Specifically, the touch screen and the bottom shell 100 are sealed and waterproofed by applying adhesive, and the sealant applied to the front end of the frame 120 forms a screen sealant layer after being squeezed. The waterproof lens at the optical engine calibration camera hole 124 is an optical engine calibration camera lens 877, the waterproof lens at the rear camera hole 852 is a rear camera lens 878, the waterproof lens at the camping lamp 880 is a camping lamp lens 876, and the waterproof lens at the projection hole 123 is a projection optical engine lens 874. These waterproof lenses are all bonded to the bottom shell 100 through waterproof adhesive to achieve waterproofing.

[0071] Here, the highly integrated rugged projection panel also includes speakers 891 and microphones 892, both built into the mounting cavity. The frame 120 has speaker holes 127 corresponding to the positions of the speakers 891 and microphone holes 892 corresponding to the positions of the microphones 892. The speakers 891 are sealed and bonded to the inner wall of the frame 120 using waterproof adhesive 872. The microphones 892 are sealed and bonded to the inner wall of the frame 120 using a waterproof cured adhesive layer formed after the waterproof liquid adhesive has cured. Specifically, to achieve better sound effects and make full use of the internal space, a speaker 891 is provided on each of the left and right sides of the battery 310, and the microphones 892 are located near the upper side of the frame 120. The sound outlets of the speakers 891 correspond to the positions of the speaker holes 127, and the speakers 891 are waterproofed by being attached to the inner wall of the frame 120 at the sound outlet using waterproof adhesive 872. The microphone 892 is built into the bottom shell 100 and is located on the upper side of the frame 120. During assembly, the microphone 892 can be fixed in the mounting position first, and then waterproof liquid adhesive can be applied to this mounting position. After the waterproof liquid adhesive has settled and cured, a waterproof cured adhesive layer can be formed, which can achieve the sealing and waterproofing of the microphone 892.

[0072] In addition, the frame 120 is provided with a plurality of spaced-apart button holes 125 and a plurality of spaced-apart interface holes 126. The button waterproof rubber ring 871, which is fitted onto the button 894, is fitted inside the button hole 125; the interface waterproof rubber plug 873 is fitted into the interface hole 126. Here, the button waterproof rubber ring 871 and the interface waterproof rubber plug 873 may be made of, but are not limited to, silicone material. Specifically, to better achieve integrated component distribution, further improve internal space utilization, and facilitate connection with the mainboard 410, multiple button holes 125 and interface holes 126 can be spaced out on the upper and left sides of the frame 120 near the mainboard 410. The button waterproof soft rubber ring 871 is installed in the corresponding button hole 125, and its outer wall surface elastically abuts against the inner wall of the button hole 125 to achieve waterproofing. In use, the button waterproof soft rubber ring 871 can be pressed directly to press the button 894. The button 894 can be fixed by the side button bracket 896 and connected to the mainboard 410 through the side button ribbon cable 895. Similarly, the waterproof soft rubber plug 873 is also installed in the corresponding interface hole 126. When the interface needs to be used, the waterproof soft rubber plug 873 can be opened. Since one end of the waterproof soft rubber plug 873 is fixedly connected to the bottom shell 100, the waterproof soft rubber plug will not fall off. After the interface is used, the waterproof soft rubber plug can be re-inserted. Its outer wall surface elastically abuts against the inner wall of the interface hole 126 to achieve waterproofing.

[0073] Please see Figure 1 and Figure 6In this embodiment, the highly integrated rugged projection tablet also includes a support assembly 900, which includes a U-shaped support 910 and two connectors 920. The U-shaped support 910 includes a supporting base rod 911 and two supporting connecting rods 912. The two connectors 920 are detachably fixed to the left and right sides of the back of the base plate 110. The upper end of the supporting connecting rod 912 is rotatably connected to the corresponding connecting rod 920, and the two ends of the supporting base rod 911 are respectively connected to the lower end of the corresponding supporting connecting rod 912. The U-shaped support 910 can rotate relative to the connectors 920 to open relative to the base plate 110. Here, the base plate 110 features a concave-convex design that enhances overall strength and heat dissipation, including an outwardly convex region 111 and an inwardly concave region 112. The inwardly concave region 112 includes a central concave region 113 located in the middle of the back plate and corner concave regions 114 located at the four corners of the back plate. The four corner concave regions 114 are interconnected with the central concave region 113. This facilitates the assembly of related components. For example, but not limited to, a rear camera hole 852 and a small flash hole are provided in the corner concave region 114 in the upper left corner; a camping light 880 is provided in the lower area of ​​the outwardly convex region 111; and a nameplate 893 is affixed to the central concave region 113. In addition, a hook 930 is provided at the lower end of the connector 920, thereby enabling convenient hanging and making it more convenient to carry. Specifically, the U-shaped bracket 910 has a folded state and an open state. In the folded state, the U-shaped bracket is parallel to the connector 920, and the support base 911 is located below the hook 930, making it easy to store and carry the tablet. In the open state, the support link 912 has an angle with the back plate, the angle being greater than 0 degrees and less than or equal to 180 degrees. That is, when projection is needed, the U-shaped bracket 910 can be opened and freely adjusted to the required support angle to obtain a better projection effect, and it can also achieve stable support. At the same time, since the U-shaped bracket is detachably connected to the base plate 110 through the connector 920, the U-shaped bracket can be repaired or replaced without removing the back plate. This design, which only requires disassembling the bracket assembly 900 without removing the base plate 110, also helps maintain the tablet's ruggedness, making it particularly suitable for outdoor scenarios.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A highly integrated rugged projection panel, characterized in that, include: The bottom shell includes a bottom plate and a frame that protrudes forward from the outer edge of the bottom plate. A hollow ventilation channel is formed on the bottom plate. An air outlet is provided on the upper side of the frame, and an air inlet is provided on the left or right side of the frame. The openings at both ends of the ventilation channel are respectively connected to the air outlet and the air inlet. A touch screen assembly includes a touch screen, the touch screen being sealed to the bottom housing and enclosing a mounting cavity; Power supply assembly, including a battery built into the mounting cavity; The control system includes the mainboard built into the mounting cavity; A projection optical engine assembly includes a projection optical engine and a small optical engine board located below the projection optical engine, both built into the mounting cavity. The projection optical engine is disposed adjacent to the upper side of the frame, and the upper side of the frame is also provided with a projection aperture for projecting light to exit; and... A heat dissipation structure, including a cooling fan built into the ventilation channel; The cooling fan is located near the air outlet, the projection optical engine assembly and the mainboard are located on the left and right sides of the cooling fan, the air outlet is located between the projection optical engine and the mainboard, the battery is located below the cooling fan and the mainboard, the projection optical engine and the optical engine board are located on the upper and lower sides of the air inlet, and the optical engine board is located next to the battery.

2. The high-integration three-protective projection panel according to claim 1, wherein The projection optical engine assembly also includes a power cable for the optical engine board, a main cable for the optical engine board, and an optical engine signal cable. The lower end of the mainboard near the ventilation channel has a first interface and a second interface. The optical engine board near the battery has a third interface and a fourth interface. The optical engine board away from the battery has a fifth interface. One end of the optical engine signal cable is electrically connected to the fifth interface, and the other end is electrically connected to the projection optical engine located on the upper side. The power cable for the optical engine board and the main cable for the optical engine board run parallel across the outer surface of the battery. The two ends of the main cable for the optical engine board are electrically connected to the first interface and the third interface, respectively. The two ends of the power cable for the optical engine board are electrically connected to the second interface and the fourth interface, respectively. The touch screen assembly also includes a screen adapter cable. The lower end of the mainboard of the device is provided with a sixth interface. The sixth interface and the first interface are respectively located on both sides of the second interface. The touch screen assembly is provided with a seventh interface. One end of the screen adapter cable is electrically connected to the sixth interface and crosses the front side of the battery and is electrically connected to the seventh interface.

3. The high-integration three-liquid crystal projection panel according to claim 1, wherein The ventilation channel is L-shaped and includes a first channel and a second channel that are integrally connected. The outlet of the first channel is connected to the air outlet. The cooling fan is built into the first channel. The outlet of the second channel is connected to the air inlet. The heat dissipation structure also includes a main heat dissipation plate, which includes a main heat dissipation area and an extended heat dissipation area. The main heat dissipation area covers the cooling fan, and the extended heat dissipation area is located on the side of the main heat dissipation area away from the motherboard and below the projection optical engine; the extended heat dissipation area has a U-shaped design facing the air inlet opening, the first leg of the extended heat dissipation area covers the second channel, and the second leg of the extended heat dissipation area extends to the optical engine board and is attached and fixed to the outer surface of the optical engine board. The main heat sink plate is also provided with an outwardly protruding heat dissipation protrusion, which is located in the main heat dissipation area and extends to the extended heat dissipation area.

4. The high-integration three-liquid crystal projection panel according to claim 3, wherein The heat dissipation structure also includes an air inlet heat dissipation component and an air outlet heat dissipation component; The air inlet heat dissipation assembly includes an air inlet heat dissipation plate, an air inlet heat dissipation pipe, and air inlet heat dissipation fins. One side of the air inlet heat dissipation plate is spliced ​​with the first leg of the extended heat dissipation area to jointly cover the second channel. The upper end of the air inlet heat dissipation plate extends to the projection optical engine for bonding and fixing, and the lower end of the air inlet heat dissipation plate extends to the optical engine board for bonding and fixing. The air inlet heat dissipation pipe is integrally protruding from the air inlet heat dissipation plate, and the length extension direction of the air inlet heat dissipation pipe is vertical. The air inlet heat dissipation fins protrude from the inner side of the air inlet heat dissipation plate and are built into the second channel near the air inlet. The air outlet heat dissipation assembly includes an air outlet heat dissipation plate and air outlet heat dissipation fins; the air outlet heat dissipation plate is an irregularly shaped long strip extending in the left-right direction, the lower end of the air outlet heat dissipation plate is spliced ​​with the upper end of the main heat dissipation plate, and the air outlet heat dissipation fins protrude from the inner side of the air outlet heat dissipation plate and are built into the first channel near the air outlet.

5. The high-integration three-protective projection panel according to claim 4, wherein The heat dissipation structure also includes a motherboard heat dissipation assembly, which includes a first motherboard heat pipe and a second motherboard heat pipe. The first motherboard heat pipe is L-shaped and fixed to the outer surface of the motherboard. One end of the first motherboard heat pipe extends upward, and the other end of the first motherboard heat pipe extends in the left-right direction toward the side away from the projection optical engine. The second motherboard heat pipe extends in the left-right direction and is fixed to the lower side of the outer surface of the motherboard. The projection optical engine assembly also includes an RGB light group disposed next to the projection optical engine. The RGB light group includes a first light source, a second light source, and a third light source. The first light source is disposed near the upper side of the frame, and the second light source and the third light source are disposed near the first channel. The air outlet heat dissipation assembly also includes a first heat pipe, a second heat pipe, a first thermal conductive pad, and a second thermal conductive pad. The first thermally conductive patch is attached to the first light source, and the first heat dissipation pipe is integrally protruding from the air outlet heat dissipation plate. The end of the first heat dissipation pipe extending from the air outlet heat dissipation plate is bent downward and fixedly connected to the first thermally conductive patch. The second thermally conductive patch is attached to the second light source and the third light source. The second heat dissipation pipe is integrally protruding from the air outlet heat dissipation plate and is spaced below the first heat dissipation pipe. The end of the second heat dissipation pipe extending from the air outlet heat dissipation plate is bent downward and fixedly connected to the second thermally conductive patch.

6. The high-integration three-liquid crystal projection panel according to claim 3, wherein The heat dissipation structure also includes a whole-machine heat dissipation bracket, which is arranged in the shape of a concave-convex plate; the outer edge of the whole-machine heat dissipation bracket is provided with a plurality of protrusions at intervals, and the protrusions are adapted to engage with the concave holes provided at corresponding positions on the inner wall of the frame.

7. The high-integration three-liquid crystal projection panel according to claim 1, wherein The highly integrated rugged projection tablet also includes a communication component, which includes an NFC antenna, a SIM card slot, and multiple radio frequency antennas. The SIM card slot includes a sub-board and a sub-board cable. The sub-board is built into the mounting cavity and is located below the mainboard and on the side of the optical engine board away from the battery. The sub-board cable is located between the side of the frame away from the optical engine board and the mainboard. The two ends of the sub-board cable are electrically connected to the mainboard and the sub-board, respectively. Multiple radio frequency antennas are built into the mounting cavity and are spaced apart at the gap between the lower side of the frame and the battery and at the gap on the upper side of the frame. The NFC antenna is built into the mounting cavity and is located adjacent to the upper side of the frame and the ventilation channel.

8. The high-integration three-liquid crystal projection panel according to claim 1, wherein The highly integrated rugged projection tablet also includes a front camera assembly, a rear camera assembly, and an optical engine calibration camera assembly; the front camera assembly includes a front camera and a front mounting bracket for fixing the front camera; a front camera hole is provided on the upper side of the edge area of ​​the touch screen near the frame, the front camera corresponds to the position of the front camera hole, and the front mounting bracket is located in the gap space between the air vent, the motherboard and the bottom shell; The rear camera assembly includes a rear camera built into the mounting cavity, and a rear camera hole is provided on the base plate near the upper corner, with the rear camera corresponding to the position of the rear camera hole; The upper side of the frame is also provided with an optical engine calibration camera hole. The optical engine calibration camera hole and the projection hole are respectively located on both sides of the air outlet. The optical engine calibration camera component is built into the gap space between the air outlet of the ventilation channel and the motherboard of the whole machine, and corresponds to the position of the optical engine calibration camera hole.

9. The high-integration three-liquid crystal projection panel according to claim 8, wherein The highly integrated rugged projection tablet also includes a waterproof structure, which includes a screen sealing layer, a waterproof lens backing adhesive, a waterproof soft rubber ring for the buttons, a waterproof backing adhesive for the speaker, a waterproof curing adhesive layer, and a waterproof soft rubber plug for the interfaces; the back of the base plate is also equipped with several camping lights. The edge area on the back of the screen is sealed and waterproofed to the frame by the screen sealant layer; the optical engine calibration camera hole, the projection hole, the rear camera hole, and the camping lamp are all sealed and bonded with waterproof lenses by the lens waterproof adhesive. The highly integrated rugged projection tablet also includes a speaker and a microphone, both built into the mounting cavity. The frame is provided with speaker holes corresponding to the speaker positions and microphone holes corresponding to the microphone positions. The speaker is sealed and bonded to the inner wall of the frame by the speaker waterproof adhesive. The microphone is sealed and bonded to the inner wall of the frame by the waterproof cured adhesive layer formed after the waterproof liquid adhesive has been statically cured. The frame is also provided with a plurality of spaced button holes and a plurality of spaced interface holes. The waterproof rubber ring for the button is fitted on the button and is installed in the button hole; the waterproof rubber plug for the interface is installed in the interface hole.

10. The high-integration three-liquid crystal projection panel according to claim 1, wherein The highly integrated rugged projection panel also includes a support assembly, which includes a U-shaped support and two connectors. The U-shaped support includes a base support rod and two connecting rods. The two connectors are detachably fixed to the left and right sides of the back of the base plate. The upper end of the connecting rod is rotatably connected to the corresponding connector, and the two ends of the base support rod are connected to the lower end of the corresponding connecting rod. The U-shaped support can rotate relative to the connectors to open relative to the base plate.

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