A portable projector

Abstract

This invention discloses a portable projector, comprising: an inner shell connected to outer shells on the upper and lower sides; the inner shell having an air inlet, an air outlet, and a sound outlet from top to bottom; a speaker installed inside the lower outer shell; a main control board above the speaker; a heat sink above the main control board; the heat sink having heat dissipation fins and a fan; the heat dissipation fins corresponding to the air outlet; an optical engine above the heat sink; a driver board above the optical engine; an angle adjustment component above the driver board; the position of the air inlet corresponding to the lower side of the driver board or the angle adjustment component; and a gesture detection board above the angle adjustment component. This design achieves a highly efficient heat dissipation structure while making the device compact and small in size.

Description

Technical Field

[0001] This invention relates to the field of projector technology and equipment, and more particularly to a portable projector. Background Technology

[0002] With the technological advancements in projector optical engines, the optical engine itself has become increasingly smaller, enabling projectors to be further miniaturized. At the same time, people are increasingly favoring small projectors, which places higher and higher demands on the integration of these small projectors.

[0003] To meet users' demands for portability and multimedia capabilities in small projectors, the shape of the projector itself needs to be adjusted, changing from the traditional cuboid / cube shape to a vertical column or cup-shaped design. This reduction in size necessitates fewer buttons; complex functions will be controlled via remote control / app, but the projector itself still needs buttons for basic daily control. The placement of these buttons must not interfere with the projector's multimedia, projection, or heat dissipation functions. Furthermore, due to the high degree of integration, the projector's heat dissipation structure and internal assembly need to be redesigned to address the structural and heat dissipation challenges brought about by miniaturization.

[0004] Therefore, there is an urgent need for a portable projector that can solve one or more of the above problems. Summary of the Invention

[0005] To address one or more problems existing in the prior art, the present invention provides a portable projector. The technical solution adopted by the present invention to solve the above problems is: a portable projector comprising: an inner shell, the inner shell being connected to outer shells disposed on the upper and lower sides, the inner shell having an air inlet surface, an air outlet, and a sound outlet surface disposed from top to bottom;

[0006] A speaker is installed inside the lower housing. A main control board is located above the speaker. A heat sink is located above the main control board. The heat sink has heat dissipation fins and a fan. The heat dissipation fins correspond to the air outlet. An optical engine is located above the heat sink. A driver board is located above the optical engine. An angle adjustment component is located above the driver board. The position of the air inlet corresponds to the lower side of the driver board or the angle adjustment component. A gesture detection board is located above the angle adjustment component.

[0007] A first heat sink is provided between the main control board and the heat sink. A second heat sink is connected to the heat sink fins. The second heat sink is located on the upper side of the optical engine and connected to the lower side of the drive board. A third heat sink is connected to the lower side of the optical engine. A heat sink fin is provided on the lower side of the third heat sink. The heat sink fin is opposite to the outer periphery of the air inlet end of the heat sink and forms an air inlet gap. A ventilation hole is formed at the point where the third heat sink is opposite to the air inlet end of the heat sink.

[0008] The angle adjustment component is used to adjust the longitudinal angle of the light source of the optical engine. During adjustment, the optical engine, the drive plate, and the heat sink fins move accordingly.

[0009] In some embodiments, the angle adjustment assembly is provided with an upper plate and a lower plate. One side of the upper plate is rotatably connected to the lower plate, and a drive motor is provided on the other side of the upper plate. The output shaft of the drive motor is rotatably connected to an upper component, and the lower plate is provided with a lower component. The upper component and the lower component are connected and engaged through a guide groove, and the drive motor drives the upper component to move along the guide groove.

[0010] Furthermore, the guide groove has an angle of 10 degrees with the horizontal plane, the guide groove is disposed on the lower part, and the upper part is provided with a protrusion that cooperates with the guide groove.

[0011] In some embodiments, a light panel is provided on the upper side of the angle adjustment component, the lampshade of the light panel and the gesture detection plate are connected to the top housing, and a fourth heat sink is provided on the lower side of the light panel;

[0012] The angle adjustment component is equipped with a cooling fan, which faces the heat sink of the fourth heat sink, and a blowing gap is formed between the cooling fan and the heat sink of the fourth heat sink.

[0013] In some embodiments, the second heat sink is connected to the two sides adjacent to the optical engine, and the heat sink fins are connected to a first heat pipe and a second heat pipe, which are respectively connected to the second heat sink on both sides of the optical engine.

[0014] In some embodiments, an interface board and a button board are disposed inside the housing located on the lower side, and the interface board and the button board are electrically connected to the main control board.

[0015] In some embodiments, a trapezoidal correction module and a camera are disposed around the light source of the optical engine.

[0016] The beneficial value of this invention is as follows: By connecting the aforementioned components and electronic equipment together and setting corresponding heat dissipation and connection structures, a vase-shaped projector is constructed for ease of use and portability; by setting air inlets and outlets on the inner shell, and cooperating with the internal heat sink to form corresponding heat dissipation channels, heat dissipation is achieved for the optical engine, driver board, and main control board; by setting gesture detection board and light board, quick control and control feedback of the projector are achieved, and the light board can also provide lighting atmosphere, wherein the light board and the internal heat sink also form corresponding heat dissipation channels to avoid overheating; the heat dissipation structure formed above makes the device compact and small in size, while also improving the heat dissipation efficiency of the internal heat source; by setting angle adjustment components, the upper and lower projection angles can be adjusted for ease of use. All of the above greatly enhances the practical value of this invention. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the invention with an external dustproof mesh cover;

[0018] Figure 2 This is a schematic diagram of the present invention without an external dustproof mesh cover;

[0019] Figure 3 This is a schematic diagram of the internal connections of the present invention (I).

[0020] Figure 4 This is a schematic diagram of the internal connections of the present invention (II).

[0021] Figure 5 This is a schematic diagram of the internal connections of the present invention (III).

[0022] Figure 6 This is a schematic diagram showing the connection between the heat dissipation fins of the present invention and the optomechanical system, the driver board, and the angle adjustment assembly.

[0023] Figure 7 This is an exploded view of the present invention;

[0024] Figure 8 This is a schematic diagram of the angle adjustment component of the present invention;

[0025] Figure 9 This is a partial enlarged view of point A in the schematic diagram of the angle adjustment component of the present invention.

[0026] [Attached image labels]

[0027] 1···Projector 10···Outer shell 11···Inner shell 12···Air outlet 13···Air inlet

[0028] 14···Sound output surface 20···Speaker 21···First speaker 22···Second speaker

[0029] 23 Interface board 24 Button board 30 Main control board 31 First heat sink

[0030] 40···Radiator 41···Radiator fins 42···First heat pipe 43···Second heat pipe

[0031] 44···Second heat sink 50···Optical engine 51···Light source 52···Camera 53···Keystone correction module 54···Third heat sink 55···Heat sink

[0032] 60···Drive board 70···Angle adjustment assembly 71···Upper plate 711···Drive motor

[0033] 712···Upper part 713···Protrusion 72···Lower plate 721···Lower part 722···Guide groove 73···Cooling fan 80···Light panel 81···Light cover

[0034] 82···Fourth heat sink 90···Gesture detection board. Detailed Implementation

[0035] To make the above-mentioned objects, features, and advantages of the present invention more readily understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figure 1 , Figure 2 As shown, the present invention discloses a portable projector, which includes: an inner shell 11, the inner shell 11 being connected to an outer shell 10 disposed on the upper and lower sides, and the inner shell 11 being provided with an air inlet 13, an air outlet 12 and a sound outlet 14 from top to bottom;

[0037] Combination Figures 3-5 As shown, a speaker 20 is installed inside the housing 10 located on the lower side. A main control board 30 is arranged on the upper side of the speaker 20. A heat sink 40 is arranged on the upper side of the main control board 30. The heat sink 40 is provided with heat dissipation fins 41 and a turbine fan. The heat dissipation fins 41 correspond to the air outlet 12. An optical engine 50 is arranged on the upper side of the heat sink 40. A drive board 60 is arranged on the upper side of the optical engine 50. An angle adjustment component 70 is arranged on the upper side of the drive board 60. The position of the air inlet surface 13 corresponds to the lower side of the drive board 60 or the angle adjustment component 70. A gesture detection board 90 is arranged on the upper side of the angle adjustment component 70.

[0038] A first heat sink 31 is provided between the main control board 30 and the heat sink 40. A second heat sink 44 is connected to the heat sink fin portion 41. The second heat sink 44 is located on the upper side of the optical engine 50 and connected to the lower side of the drive board 60. A third heat sink 54 is connected to the lower side of the optical engine 50. A heat sink 55 is formed on the lower side of the third heat sink 54. The heat sink 55 is opposite to the outer periphery of the air inlet end of the heat sink 40 and forms an air inlet gap. A ventilation hole is formed at the point where the third heat sink 54 is opposite to the air inlet end of the heat sink 40.

[0039] The angle adjustment component 70 is used to adjust the longitudinal angle of the light source 51 of the optical engine 50. During adjustment, the optical engine 50, the drive plate 60, and the heat dissipation fin portion 41 move accordingly.

[0040] It should be noted that the fan of the heat sink 40 draws air in from the top and exhausts air from the side. The heat sink fins 41 and the fan of the heat sink 40 are joined together with a gap between them. The area of ​​the heat sink fins 41 facing the fan is larger than the area of ​​the fan exhaust port. Therefore, it will not affect the heat dissipation effect and facilitates the movement of the heat sink fins 41.

[0041] Specifically, in combination Figure 6 , Figure 7 As shown, the second heat sink 44 is connected to the two sides adjacent to the optical engine 50. The heat sink fin portion 41 is connected to the first heat pipe 42 and the second heat pipe 43. The first heat pipe 42 and the second heat pipe 43 are respectively connected to the second heat sink 44 on both sides of the optical engine 50 to facilitate heat dissipation for the optical engine 50 and the drive board 60.

[0042] It should be noted that, in combination Figure 5 As shown, the speaker 20 is equipped with a first speaker 21 and a second speaker 22, which are symmetrically arranged. A trapezoidal correction module 53 and a camera 52 are arranged around the light source 51 of the optical engine 50 to facilitate focusing and trapezoidal correction. Furthermore, thermally conductive silicone is provided between the internal components to fill gaps and improve heat dissipation efficiency. An interface board 23 and a button board 24 are located inside the lower housing 10, and the interface board 23 and the button board 24 are electrically connected to the main control board 30. Figure 1 , Figure 2 As shown, a dustproof mesh cover may be provided on the outer side of the inner shell 11, and the dustproof mesh cover is snapped into the outer shell 10 / the inner shell 11.

[0043] Specifically, in combination Figures 8-9As shown, the angle adjustment assembly 70 is provided with an upper plate 71 and a lower plate 72. One side of the upper plate 71 is rotatably connected to the lower plate 72, and the other side of the upper plate 71 is provided with a drive motor 711. The output shaft of the drive motor 711 is rotatably connected to an upper component 712. The lower plate 72 is provided with a lower component 721. The upper component 712 and the lower component 721 are connected and engaged through a guide groove 722. The drive motor 711 drives the upper component 712 to move along the guide groove 722. In particular, the output shaft of the drive motor 711 is connected to a reducer.

[0044] Furthermore, the guide groove 722 has an angle of 10 degrees with the horizontal plane, the guide groove 722 is disposed on the lower part 721, and the upper part 712 is provided with a protrusion 713 that cooperates with the guide groove 722.

[0045] The projector 1 is vase-shaped and small in size. When in use, if there is a slight height difference between the projected image and the blank area of ​​the screen / wall, it is often necessary to add an object under it. However, adding an object can easily cause the projector to be unstable. Therefore, the tilt angle of the projection can be adjusted by the angle adjustment component 70 to improve the convenience of use.

[0046] Specifically, in combination Figure 3 , Figure 4 As shown, a light panel 80 is provided on the upper side of the angle adjustment component 70, the lamp cover 81 of the light panel 80 and the gesture detection plate 90 are connected to the outer shell 10 on the top, and a fourth heat dissipation plate 82 is provided on the lower side of the light panel 80.

[0047] The angle adjustment component 70 is equipped with a cooling fan 73, which is located on the upper plate 71. The cooling fan 73 faces the heat sink of the fourth heat sink 82, and a blowing gap is formed between the cooling fan 73 and the heat sink of the fourth heat sink 82.

[0048] The outer casing 10 located on the upper side may have an air outlet gap at the connection point. In use, the external cooling fan 73 and the heat sink 40 draw air in from the air inlet surface 13; the internal heat sink 40 forms an inlet cooling air duct from the outside towards the center through the air inlet gap, the ventilation perforation, and the gaps between components. While drawing air in, it provides initial cooling and noise reduction for the drive board 60 and the optical engine 50. Then, the first and second heat pipes, in conjunction with the second heat sink 44, further cool the drive board 60 and the optical engine 50. During this process, the main control board 30 is connected to the heat sink 40 through the first heat sink 31 for cooling, and hot air is discharged from the heat sink fin portion 41.

[0049] Furthermore, the internal cooling fan 73 forms an upward air intake duct, and the air intake channels on the upper and lower sides accelerate the air intake volume at the air intake surface 13. The lamp panel 80 dissipates heat through the fourth heat sink 82 and the cooling fan 73. The hot air discharged by the fourth heat sink 82 partially rises and flows out through the air outlet gap, creating positive pressure on the upper side to prevent dust accumulation on the inner side of the outer shell panel corresponding to the lamp cover 81 and the gesture detection board 90. Part of the hot air flows downward along the inner wall of the outer shell 10, creating positive pressure at the connection between the upper outer shell 10 and the inner shell 11 to prevent dust from being sucked into the gaps and to dissipate heat. After passing through the air intake surface 13, it will return to the internal air duct for circulation or continue to flow along the inner wall of the outer shell 10, and finally flow out at the sound outlet surface 14.

[0050] When the heat dissipation fins 41 exhaust hot air, they mainly discharge the hot air to the side. Some of the hot air flows along the inner wall of the outer casing 10. The upward-flowing air returns to the internal air duct, and the downward-flowing air flows out of the sound outlet surface 14. This ultimately maintains positive pressure at the sound outlet surface 14, preventing air from entering through the holes in the sound outlet surface 14 and thus affecting the playback effect of the speaker 20.

[0051] In summary, this invention connects the aforementioned components and electronic devices together, and sets up corresponding heat dissipation and connection structures to create a vase-shaped projector for ease of use and portability. By setting air inlets and outlets on the inner shell, and combining them with an internal heat sink to form corresponding heat dissipation channels, heat dissipation is achieved for the optical engine, driver board, and main control board. By setting up a gesture detection board and a light board, quick control and control feedback of the projector are achieved, and the light board also provides ambient lighting. The light board and internal heat sink also form corresponding heat dissipation channels to prevent overheating. The aforementioned heat dissipation structure makes the device compact and small in size, while also improving the heat dissipation efficiency of the internal heat sources. An angle adjustment component allows for adjustment of the vertical projection angle for ease of use.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0054] The embodiments described above are merely illustrative of one or more implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A portable projector, characterized in that, include: The inner shell is connected to the outer shells on the upper and lower sides. The inner shell has an air inlet, an air outlet and a sound outlet from top to bottom. A speaker is installed inside the lower housing. A main control board is located above the speaker. A heat sink is located above the main control board. The heat sink has heat dissipation fins and a fan. The heat dissipation fins correspond to the air outlet. An optical engine is located above the heat sink. A driver board is located above the optical engine. An angle adjustment component is located above the driver board. The position of the air inlet corresponds to the lower side of the driver board or the angle adjustment component. A gesture detection board is located above the angle adjustment component. A first heat sink is provided between the main control board and the heat sink. A second heat sink is connected to the heat sink fins. The second heat sink is located on the upper side of the optical engine and connected to the lower side of the drive board. A third heat sink is connected to the lower side of the optical engine. A heat sink fin is provided on the lower side of the third heat sink. The heat sink fin is opposite to the outer periphery of the air inlet end of the heat sink and forms an air inlet gap. A ventilation hole is formed at the point where the third heat sink is opposite to the air inlet end of the heat sink. The angle adjustment component is used to adjust the longitudinal angle of the light source of the optical engine. During adjustment, the optical engine, the drive plate, and the heat sink fins move accordingly. A trapezoidal correction module is arranged around the light source of the optical engine, and a camera is arranged around the light source of the optical engine.

2. A portable projector according to claim 1, characterized in that, The angle adjustment assembly includes an upper plate and a lower plate. One side of the upper plate is rotatably connected to the lower plate, and the other side of the upper plate is equipped with a drive motor. The output shaft of the drive motor is rotatably connected to an upper component, and the lower plate is equipped with a lower component. The upper component and the lower component are connected and engaged through a guide groove, and the drive motor drives the upper component to move along the guide groove.

3. A portable projector according to claim 2, characterized in that, The guide groove has an angle of 10 degrees with the horizontal plane. The guide groove is provided on the lower part, and the upper part is provided with a protrusion that cooperates with the guide groove.

4. A portable projector according to claim 1, characterized in that, A light panel is provided on the upper side of the angle adjustment component. The lampshade of the light panel, the gesture detection plate, and the outer shell on the top are connected. A fourth heat dissipation plate is provided on the lower side of the light panel. The angle adjustment component is equipped with a cooling fan, which faces the heat sink of the fourth heat sink, and a blowing gap is formed between the cooling fan and the heat sink of the fourth heat sink.

5. A portable projector according to claim 1, characterized in that, The second heat sink is connected to the two sides adjacent to the optical engine. The heat sink fins are connected to a first heat pipe and a second heat pipe. The first heat pipe and the second heat pipe are respectively connected to the second heat sink on both sides of the optical engine.

6. A portable projector according to claim 1, characterized in that, An interface board and a button board are provided inside the housing located on the lower side, and the interface board and the button board are electrically connected to the main control board.

Images