Vertical projector cooling system and projector

Abstract

The present invention relates to a vertical heat dissipation system for a projector, comprising: an outer shell, an air guide assembly, an air inlet assembly, and a first heat dissipation assembly. The outer shell is provided with a first air inlet and an air outlet, the air inlet assembly is connected to the air guide assembly, the air guide assembly forms an air guide area with an arc-shaped longitudinal section, the first heat dissipation assembly includes a front lens and a display screen arranged at intervals, and a first heat dissipation area is formed between the front lens and the display screen; when the air inlet assembly is working, air is sucked in by the first air inlet, enters the first heat dissipation area through the air guide area, and is discharged from the air outlet to carry away the heat generated by the first heat dissipation assembly. The vertical heat dissipation system for a projector of the present invention reduces wind resistance and improves heat dissipation efficiency by means of the air guide area with an arc-shaped longitudinal section, and reduces the influence of dust on the display effect of the display screen by reducing the contact area between the display screen and the heat dissipation area, so that the vertical heat dissipation system for a projector of the present invention improves the display effect and service life while ensuring heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of projectors, and in particular to a vertical heat dissipation system for a projector and a projector. Background Art

[0002] With the popularity of projectors in daily life, more and more users have higher requirements for the display effects of projectors. They not only require projectors to have better picture quality, but also require projectors to have higher display brightness. As the resolution and brightness of projectors increase, the heat generated by the display screen and light source inside the projector also increases.

[0003] However, existing projectors, due to size limitations, typically utilize a horizontal cooling system with a 90-degree bend. This cooling system suffers from shortcomings such as a small air duct radius, lack of smoothness, high wind resistance, and low cooling efficiency. Furthermore, the ambient air drawn in by the cooling fan is inevitably mixed with dust and other small debris. As it exchanges heat with the display screen, these dust and small debris adhere to the screen, reducing image brightness and quality over time. After optical amplification, the projected image will exhibit dark shadows or bright spots. Furthermore, dust or small debris adhering to the display screen reduces its cooling performance and increases its temperature, causing optical components such as the display screen and polarizer to operate under high temperatures for extended periods. This ultimately results in serious defects such as yellowing of the projected image and screen burn-in. Summary of the Invention

[0004] Based on this, it is necessary to provide a vertical heat dissipation system for a projector and a projector to solve the problems of low heat dissipation efficiency and poor display effect of existing projectors.

[0005] In one aspect, the present invention provides a vertical heat dissipation system for a projector, comprising:

[0006] The outer shell is provided with a first air inlet and an air outlet;

[0007] An air guide assembly is disposed in the outer shell, the air guide assembly comprising a first shell and a second shell, an air guide area is formed between the first shell and the second shell, the longitudinal cross-section of the air guide area is arc-shaped, and the air guide area comprises a first air outlet and a second air outlet;

[0008] an air inlet assembly disposed in the outer shell and connected to the first air inlet, the air inlet assembly being configured to draw air from outside the outer shell through the first air inlet and deliver the air to the air guide area;

[0009] a first heat dissipation assembly, comprising a front lens and a display screen, wherein the display screen and the front lens are spaced apart from each other, a gap between the display screen and the front lens forming a first heat dissipation area, and the second air outlet is in communication with the first heat dissipation area;

[0010] When the air inlet assembly is working, the air entering from the first air inlet enters the first heat dissipation area through the air guide area and is discharged from the air outlet to take away the heat generated by the first heat dissipation assembly.

[0011] In one embodiment, the projector vertical heat dissipation system also includes a second heat dissipation component, the second heat dissipation component includes a third shell and an LED lamp, one side of the display screen is connected to the side of the first shell close to the second air outlet, and the other side is connected to the third shell, the third shell and the outer shell form a second heat dissipation area, the first heat dissipation area is connected to the air outlet through the second heat dissipation area, and the LED lamp is arranged in the second heat dissipation area.

[0012] In one embodiment, the first shell and the second shell, and the first shell and the third shell are connected in a detachable manner.

[0013] In one embodiment, the second heat dissipation component includes a heat sink, and the heat sink is used to dissipate heat from the LED lamp to a second heat dissipation area.

[0014] In one embodiment, the outer shell includes a second air inlet, and the second air inlet is connected to the second heat dissipation area.

[0015] In one embodiment, the vertical heat dissipation system for a projector further includes a dust filtering device, which is arranged at the first air inlet and / or the second air inlet and is used to filter the air entering the outer shell.

[0016] In one embodiment, the third shell includes an air guide plate, the longitudinal section of the air guide plate is arc-shaped, and the air guide plate is enclosed with the outer shell to form the second heat dissipation area.

[0017] In one embodiment, the area of ​​the first air outlet is larger than the area of ​​the second air outlet.

[0018] In one embodiment, the first heat dissipation component includes insulating glass, which is arranged at intervals between the front lens and the display screen to divide the first heat dissipation area into two sub-heat dissipation ducts, and the two sub-heat dissipation ducts are both connected to the second air outlet.

[0019] In one embodiment, the first shell includes a first latching position, and the third shell includes a second latching position, the first latching position and the second latching position correspond to each other and are used to install at least one of the front lens, the display screen and the insulation glass.

[0020] In another aspect, the present invention provides a projector comprising:

[0021] Such as the above-mentioned vertical cooling system for projectors;

[0022] A lens assembly is provided on the outer shell of the vertical heat dissipation system of the projector, and includes a plurality of lenses arranged coaxially, and is used to project the light inside the projector to the outside of the projection;

[0023] The reflector is arranged in the outer shell and is used for reflecting the light emitted by the display screen to the lens assembly.

[0024] The vertical projector heat dissipation system of the present invention reduces wind resistance within the vertical projector heat dissipation system and improves the heat dissipation efficiency of the heat dissipation system by providing an air guide area with an arc-shaped longitudinal cross-section. At the same time, the gap between the display screen and the front lens forms a first heat dissipation area, so that only one side of the display screen is located in the first heat dissipation area, reducing the contact area between the display screen and the heat dissipation area and reducing the probability of dust and other debris adhering to the display screen. In this way, the vertical projector heat dissipation system of the present invention improves the display effect and service life while ensuring heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of an embodiment of a vertical heat dissipation system for a projector according to the present invention;

[0026] Figure 2 This is an exploded view of an embodiment of a vertical heat dissipation system for a projector according to the present invention, with the outer shell removed;

[0027] Figure 3 An exploded view from another perspective of an embodiment of the vertical heat dissipation system for a projector according to the present invention, with the outer shell removed;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic structural diagram of the first shell, the second shell and the third shell in the vertical heat dissipation system of the projector of the present invention;

[0030] Figure 6 for Figure 5 Exploded view of the structure shown;

[0031] Figure 7 for Figure 6 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] Combine Figures 1 to 3 As shown, Figure 1FIG2 shows a schematic structural diagram of an embodiment of a vertical heat dissipation system for a projector according to the present invention. Figure 2 An exploded view of an embodiment of a vertical heat dissipation system for a projector according to the present invention is shown with the outer shell 100 removed. Figure 3 An exploded view of an embodiment of a vertical projector cooling system according to the present invention, with the outer housing 100 removed, is shown. The vertical projector cooling system includes an outer housing 100, disposed on the outermost side of the other components, an air guide assembly 200, an air inlet assembly 300, and a first heat dissipation assembly 400. The outer housing 100 is provided with a first air inlet 110 and an air outlet 120. The air guide assembly 200 includes a first housing 210 and a second housing 220. The first housing 210 and the second housing 220 are connected to form an air guide area 230. The air guide area 230 has an arc-shaped longitudinal cross-section and includes a first air outlet 231 and a second air outlet 232. Gas flows into the air guide area 230 through the first air outlet 231 and flows out of the air guide area 230 through the second air outlet 232.

[0038] The air inlet assembly 300 is arranged in the outer shell 100 and is connected to the first air inlet 110. The air inlet assembly 300 is inclined relative to the first air inlet 110. The air inlet assembly 300 is used to inhale air from the outside of the outer shell 100 through the first air inlet 110 and deliver it to the wind guide area 230.

[0039] The first heat dissipation component 400 includes a front lens 410 and a display screen 420 . The display screen 420 and the front lens 410 are spaced apart. The gap between the display screen 420 and the front lens 410 forms a first heat dissipation area 430 . The second air outlet 232 of the air guide area 230 is connected to the first heat dissipation area 430 .

[0040] Specifically, the first shell 210 includes an arc-shaped shell cover 211 and an installation frame 212 connected to one side of the arc-shaped shell cover 211. The second shell 220 is covered on the outside of the arc-shaped shell cover 211 and together with the arc-shaped shell cover 211 form the air guide area 230. The space enclosed by the installation frame 212 is connected to the second air outlet 232.

[0041] It should be noted that the longitudinal cross-section of the air guide area 230 is arc-shaped, which can be a standard arc or a non-standard arc with a curvature radius gradually increasing or decreasing along the direction from the first air outlet 231 to the second air outlet 232. With this arrangement, the wind resistance of air flowing through the air guide area 230 is reduced.

[0042] In this embodiment, the air intake assembly 300 draws in cooler air from the exterior of the outer shell 100 through the first air inlet 110, conducts the air through the air guide area 230 to the first heat dissipation area 430, and allows the cooler air to exchange heat with the display screen 420, which is located on one side of the first heat dissipation area 430 and has a higher temperature, thereby cooling the display screen 420. The cooler air is then discharged through the air outlet 120. The cooler air enters the first heat dissipation area 430 through the air guide area 230, which has an arc-shaped longitudinal cross-section. The arc-shaped air guide area 230 is smoother and has less wind resistance, allowing the air to enter the first heat dissipation area 430 at a faster speed, thereby improving heat dissipation efficiency. Accordingly, due to the reduced wind resistance of the air guide area 230, a smaller air intake assembly 300 can be used to achieve the same air intake effect, which helps optimize the noise performance of the projector's vertical heat dissipation system and also helps reduce production costs.

[0043] In addition, the first heat dissipation zone 430 in the vertical heat dissipation system of the projector is formed in the gap between the front lens 410 and the display screen 420. Therefore, only one side of the display screen 420 is in contact with the air in the first heat dissipation zone 430, reducing the chance of the display screen 420 being contaminated by dust. Combined with the air guide zone 230 with an arc-shaped longitudinal cross-section, the vertical heat dissipation system of the projector can greatly improve the display effect and service life of the equipment while ensuring heat dissipation.

[0044] Continue reading Figure 1 As shown, in some embodiments, the projector vertical heat dissipation system also includes a second heat dissipation component 500, the second heat dissipation component 500 includes a third shell 510 and an LED lamp 530, one side of the display screen 420 is connected to the side of the first shell 210 close to the second air outlet 232, and the other side is connected to the third shell 510, the third shell 510 and the outer shell 100 form a second heat dissipation area 520, the first heat dissipation area 430 is connected to the air outlet 120 through the second heat dissipation area 520, and the LED lamp 530 is arranged in the second heat dissipation area 520.

[0045] In this embodiment, the temperature of the LED lamp 530 itself rises when it emits light. The air inlet component 300 transmits the air with a lower temperature outside the outer shell 100 to the first heat dissipation area 430 and the second heat dissipation area 520 in sequence through the air guide area 230. After heat exchange with the display screen 420 and the LED lamp 530, the temperature of the display screen 420 and the LED lamp 530 drops, the air temperature rises, and the air with a higher temperature is discharged through the air outlet 120. The transmission path of the above air is the first heat dissipation path P1 of the vertical heat dissipation system of this projector.

[0046] In some embodiments, the first housing 210 and the second housing 220, and the first housing 210 and the third housing 510, are connected in a detachable manner, for example, by at least one of threads, snaps, or magnets. Specifically, when connecting the first housing 210 and the second housing 220, fixing holes may be provided in the first housing 210, and through holes may be provided in the second housing 220. Screws may pass through the through holes in the second housing 220 and threadedly connect to the fixing holes in the first housing 210. This arrangement facilitates maintenance, cleaning, or repair of the projector. In other embodiments, the first shell 210 and the second shell 220, and the first shell 210 and the third shell 510 can also be connected in a non-detachable manner, for example, they can be connected by adhesive or laser welding. The advantage of such a setting is that it enhances the airtightness between the first shell 210 and the second shell 220, and the first shell 210 and the third shell 510, while improving the heat dissipation efficiency. It can also reduce dust and other debris from entering the first heat dissipation path through the gaps between the first shell 210 and the second shell 220, and the first shell 210 and the third shell 510, affecting the display effect and service life of the projector.

[0047] Combine Figures 3 to 7 As shown, in some embodiments, the first housing 210 includes a first latching position 213, which is disposed on the inner side of the mounting frame 212. The first latching position 213 includes a first latching slot 213a and a second latching slot 213b spaced apart from each other. The width of the first latching slot 213a corresponds to the thickness of the display screen 420, and the width of the second latching slot 213b corresponds to the thickness of the front lens 410, so that the display screen 420 and the front lens 410 are respectively latched to the first latching slot 213a and the second latching slot 213b. The third housing 510 includes a second latching position 512, which corresponds to the first latching position 213. Specifically, the second latching position 512 includes a fourth latching slot 512a and a fifth latching slot 512b spaced apart from each other. The width of the fourth latching slot 512a corresponds to the thickness of the display screen 420, and the width of the fifth latching slot 512b corresponds to the thickness of the front lens 410.

[0048] In this embodiment, when the first housing 210 and the third housing 510 are connected, the first slot 213a and the fourth slot 512a correspond to each other, and the second slot 213b and the fifth slot 512b correspond to each other. At this time, the two ends of the display screen 420 are respectively inserted into the first slot 213a and the fourth slot 512a. The two ends of the front lens 410 are respectively inserted into the second slot 213b and the fifth slot 512b. The advantage of this arrangement is that after the first housing 210 and the third housing 510 are connected, the front lens 410 and the display screen 420 can be fixed. When the front lens 410 and / or the display screen 420 need to be maintained or replaced, the front lens 410 and / or the display screen 420 can be completely removed by simply separating the first housing 210 from the third housing 510.

[0049] In some embodiments, the second heat dissipation assembly 500 further includes a heat sink 540 for dissipating heat generated by the LED lamp 530 to the second heat dissipation area 520. Specifically, the heat sink 540 can be made of a material with good thermal conductivity, for example, an aluminum alloy heat sink or a heat dissipation copper tube.

[0050] In some embodiments, the third shell 510 includes an air guide plate 511, the longitudinal section of the air guide plate 511 is arc-shaped, and the air guide plate 511 and the outer shell 100 together form a second heat dissipation zone 520. The advantage of providing the air guide plate 511 is that when the air enters the second heat dissipation zone 520 from the first heat dissipation zone 430, the air guide plate 511 with an arc-shaped cross-section makes the first heat dissipation path P1 smoother at the air guide plate 511, with smaller wind resistance, and the air can enter the second heat dissipation zone 520 at a faster speed, thereby improving the heat dissipation efficiency.

[0051] It should be noted that the longitudinal cross-section of the air guide plate 511 is arc-shaped, which can be a standard arc or a non-standard arc with a curvature radius that gradually increases or decreases along the air flow direction of the air guide plate 511. With this arrangement, the airflow resistance generated when the air flows through the air guide area 230 is small.

[0052] In the embodiment described above where the third housing 510 includes the air guide plate 511, Figure 2As shown, the heat sink 540 includes a plurality of spaced fins 541 to increase the contact area between the heat sink 540 and the air. The extension surface of the air guide plate 511 from the first heat dissipation zone 430 to the second heat dissipation zone 520 is perpendicular to the surface between the fins 541 of the heat sink 540. This arrangement has the advantage that the direction of the airflow guided by the air guide plate 511 is consistent with the extension direction of the fins 541. Specifically, the airflow guided by the air guide plate 511 flows through the gaps between the fins 541, thereby improving heat dissipation efficiency. The heat sink 540 is arranged around the LED lamp 530. The height of the fins 541 near the LED lamp 530 increases with the distance from the LED lamp 530. That is, the height of the fins 541 closer to the LED lamp 530 is lower, while the height of the fins 541 farther from the LED lamp 530 is higher. This arrangement has the advantage of preventing the heat sink 540 from affecting the projector's optical path.

[0053] In some embodiments, thermal grease or liquid metal thermal conductive agent may be applied between the heat sink 540 and the LED lamp 530 to enhance the heat exchange rate between the LED lamp 530 and the heat sink 540 and further improve the heat dissipation efficiency.

[0054] See again Figure 1 As shown, in some embodiments, the outer shell 100 further includes a second air inlet 130, which is in communication with the second heat dissipation zone 520. Air with a lower external temperature can enter the second heat dissipation zone 520 through the second air inlet 130, thereby lowering the temperature of the second heat dissipation zone 520. The advantage of this arrangement is that the second air inlet 130 connects the second heat dissipation zone 520 with the external air of the outer shell 100, which not only lowers the temperature of the air in the second heat dissipation zone 520 and improves the heat dissipation effect of the LED lamp 530, but also, due to the acceleration of the air by the air intake assembly 300, the air entering the outer shell 100 through the second air inlet 130 in the second heat dissipation zone 520 is less likely to flow to the first heat dissipation zone 430. This also prevents dust and other debris in the air entering the second heat dissipation zone 520 through the second air inlet from affecting the display effect of the display screen 420 in the first heat dissipation zone 430.

[0055] In this embodiment, air with a lower temperature outside the outer shell 100 enters the second heat dissipation zone 520 through the second air inlet 130, exchanges heat with the hot air and LED lamps 530 in the second heat dissipation zone 520, and is then discharged through the air outlet 120. The transmission path of the above air is the second heat dissipation path P2 of the vertical heat dissipation system of this projector.

[0056] In some embodiments, the area of ​​the first air outlet 231 of the air guide area 230 is larger than the area of ​​the second air outlet 232. The advantage of this setting is that the air guide area 230 can speed up the flow of air into the first heat dissipation area 430, thereby improving the heat dissipation efficiency and reducing the chance of dust and other debris adhering to the display screen 420, which helps to improve the display effect and service life.

[0057] In some embodiments, the projector vertical cooling system also includes an air outlet component 600, which is connected to the air outlet 120. The air outlet component 600 can be arranged in the second heat dissipation zone 520 of the projector vertical cooling system. The air outlet component 600 is used to accelerate the discharge speed of the air with higher temperature in the outer shell 100, and improve the speed of air circulation in the first heat dissipation path P1 and the second heat dissipation path P2 of the projector vertical cooling system. At the same time, since the air outlet component 600 accelerates the flow rate of air at the air outlet 120, the air flow rate in the second heat dissipation zone 520 connected to the air outlet 120 is accelerated, and negative pressure is formed at the second air inlet 130, which is conducive to sucking the air with lower temperature outside the outer shell 100 into the second heat dissipation zone 520, further reducing the temperature of the air in the second heat dissipation zone 520, and thereby improving the heat dissipation effect of the second heat dissipation zone 520.

[0058] In some embodiments, the air intake assembly 300 includes an air intake fan, and the air outlet assembly 600 further includes an air outlet fan. The air intake fan and the air outlet fan can be at least one of a DC cooling fan, an axial cooling fan, and a centrifugal cooling fan.

[0059] In some embodiments, combined Figure 1 、 Figure 3 and Figure 4 As shown, the first heat dissipation component 400 also includes an insulating glass 440, which is arranged in the first heat dissipation zone 430, that is, between the front lens 410 and the display screen 420. The insulating glass 440 divides the first heat dissipation zone 430 into two sub-heat dissipation channels. A brightness enhancement film is provided on the side of the insulating glass 440 facing the front lens 410. When the light emitted by the LED lamp 530 passes through the brightness enhancement film, heat is generated due to light loss. Setting the insulating glass 440 in the first heat dissipation zone 430 increases the contact area between the insulating glass 440 and the air in the heat dissipation zone, which helps to cool the insulating glass 440. At the same time, the insulating glass 440 arranged between the LED lamp 530 and the display screen 420 can also reduce the impact of the heat generated by the LED lamp 530 on the display effect of the display screen 420.

[0060] Combine Figures 5 to 7As shown, in some embodiments, the first card position 213 of the first shell 210 includes a third card slot 512a for installing the insulating glass 440, and the second card position 512 of the third shell 510 includes a sixth card slot 512c for installing the insulating glass 440. Part of the structure of the insulating glass 440 is carded in the third card slot 213c, and the other part of the structure is carded in the sixth card slot 512c. The advantage of this arrangement is that when the insulating glass 440 needs to be maintained or replaced, it is only necessary to disassemble the second shell 220 to take out the insulating glass 440, which can greatly reduce the disassembly and assembly steps and improve the efficiency of maintenance or replacement.

[0061] In some embodiments, the projector vertical heat dissipation system further includes a dust filtering device 700, which is arranged at the first air inlet 110 and / or the second air inlet 130, and is used to filter the air entering the outer shell 100, reduce the content of dust and other debris in the air entering the interior of the projector vertical heat dissipation system, and help improve the display effect of the projector and extend the service life of the projector. Specifically, the dust filtering device 700 can use dust-proof cotton fixed by a retaining frame. The dust filtering device 700 and the outer shell 100 are detachable structures. The advantage of such a setting is that the dust filtering device 700 can be replaced regularly to further extend the service life of the projector, and the display effect of the projector can still be maintained at a high level after long-term use. In other embodiments, the dust filtering device 700 and the outer shell 100 can be designed as an integrated structure. The advantage of such a setting is that the outer shell 100 has better integrity and reduces the number of parts, which helps to reduce production costs.

[0062] In some embodiments, the vertical projector cooling system further includes a dust adsorption device, which is disposed within the air guide area 230 (for example, the dust adsorption device can be fitted on the inner side wall of the second housing 220 corresponding to the air guide area 230), or disposed between the air inlet assembly 300 and the air inlet, for adsorbing dust and other debris from the air entering the air guide area 230. By actively adsorbing the dust and other debris in the air before it enters the first cooling area 430, the probability of dust and other debris adhering to the display screen 420 is reduced, thereby improving the display effect and cooling conditions of the display screen 420, and thereby improving the display effect and service life of the projector. The dust adsorption device can be dust removal glue, a filter, etc.

[0063] Specifically, the dust adsorption device can also use electrostatic dust removal. A high-voltage electrostatic field is formed inside the dust adsorption device. When air containing dust and other debris passes through the high-voltage electrostatic field, the air molecules are ionized and decomposed into positive ions and electrons. The electrons move toward the positive pole of the high-voltage electrostatic field. During the movement, the dust and other debris in the air are negatively charged and adsorbed by the positive pole of the electric field.

[0064] In some embodiments, the vertical projector cooling system also includes a cooling device, located within the air guide area 230, for reducing the temperature of air entering the first cooling area 430 and the second cooling area 520. The vertical projector cooling system also includes a temperature sensor and a humidity sensor. The temperature sensor is used to detect the temperature of the air inside the outer shell 100. The temperature sensor can be located within the first cooling area 430 and / or the second cooling area 520. In conjunction with the temperature sensor, the operating state of the cooling device can be adjusted in real time based on the temperature inside the outer shell 100, thereby regulating the temperature of the gas inside the outer shell 100 and improving the cooling effect of the vertical projector cooling system. The humidity sensor is used to detect the humidity of the air inside the outer shell 100 to prevent the liquefaction of water vapor in the air due to a drop in air temperature, which could cause short circuits or corrosion of electronic components within the projector. In other embodiments, the cooling device can also be located on the radiator 540 to cool the LED lamp 530.

[0065] In some embodiments, the cooling device can be a semiconductor refrigeration chip. Compared to other cooling devices, semiconductor refrigeration chips do not require refrigerants or compressors, are compact, and produce no noise during operation. Furthermore, semiconductor refrigeration chips have low thermal inertia, enabling rapid cooling, which better meets the requirements of vertical projector cooling systems. Furthermore, when connected to a reverse current, semiconductor refrigeration chips can also function as heating devices, allowing for internal dehumidification of the projector or for preheating the projector when used in low-temperature environments.

[0066] The present invention also provides a projector, including a lens assembly, a reflector and the above-mentioned projector vertical heat dissipation system. The lens assembly is arranged on the outer shell 100 of the projector vertical heat dissipation system, and includes multiple coaxially arranged lenses for projecting light inside the projector to the outside of the projector. The reflector is arranged in the outer shell 100 for reflecting light emitted by the display screen 420 to the lens assembly.

[0067] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A vertical heat dissipation system for a projector, characterized in that: include: The outer shell is provided with a first air inlet and an air outlet; An air guide assembly is disposed in the outer shell, the air guide assembly comprising a first shell and a second shell, an air guide area is formed between the first shell and the second shell, the longitudinal cross-section of the air guide area is arc-shaped, and the air guide area comprises a first air outlet and a second air outlet; an air inlet assembly disposed in the outer shell and connected to the first air inlet, the air inlet assembly being configured to draw air from outside the outer shell through the first air inlet and deliver the air to the air guide area; a first heat dissipation assembly, comprising a front lens and a display screen, wherein the display screen and the front lens are spaced apart from each other, a gap between the display screen and the front lens forming a first heat dissipation area, and the second air outlet is in communication with the first heat dissipation area; a second heat dissipation assembly, the second heat dissipation assembly comprising a third shell, one side of the display screen being connected to a side of the first shell near the second air outlet, and the other side being connected to the third shell, the third shell and the outer shell forming a second heat dissipation area, the first heat dissipation area being connected to the air outlet via the second heat dissipation area; When the air inlet assembly is working, the air entering from the first air inlet enters the first heat dissipation area through the air guide area and is discharged from the air outlet to take away the heat generated by the first heat dissipation assembly; The first heat dissipation component further includes heat-insulating glass, which is arranged in the first heat dissipation area. The heat-insulating glass divides the first heat dissipation area into two sub-heat dissipation channels. A brightness enhancement film is provided on the side of the heat-insulating glass facing the front lens.

2. The vertical heat dissipation system for a projector according to claim 1, characterized in that: The second heat dissipation component further includes an LED lamp, which is arranged in the second heat dissipation area.

3. The vertical heat dissipation system for a projector according to claim 2, characterized in that: The first shell and the second shell, as well as the first shell and the third shell are connected in a detachable manner.

4. The vertical heat dissipation system for a projector according to claim 2, characterized in that: The second heat dissipation component includes a heat sink, which is used to dissipate heat from the LED lamp to a second heat dissipation area.

5. The vertical heat dissipation system for a projector according to claim 2, characterized in that: The outer shell includes a second air inlet, and the second air inlet is communicated with the second heat dissipation area.

6. The vertical heat dissipation system for a projector according to claim 5, characterized in that: It also includes a dust filtering device, which is arranged at the first air inlet and / or the second air inlet and is used to filter the air entering the outer shell.

7. The vertical heat dissipation system for a projector according to claim 2, characterized in that: The third shell includes an air guide plate, the longitudinal section of which is arc-shaped and encloses the outer shell to form the second heat dissipation area.

8. The vertical heat dissipation system for a projector according to claim 1, characterized in that: The area of ​​the first air outlet is greater than the area of ​​the second air outlet.

9. The vertical heat dissipation system for a projector according to claim 2, characterized in that: The first heat dissipation component includes insulating glass, which is arranged at intervals between the front lens and the display screen to divide the first heat dissipation area into two sub-heat dissipation ducts, and the two sub-heat dissipation ducts are both connected to the second air outlet.

10. A projector, characterized in that: include: The vertical heat dissipation system for a projector according to any one of claims 1 to 9; A lens assembly is provided on the outer shell of the vertical heat dissipation system of the projector, and includes a plurality of lenses arranged coaxially, and is used to project the light inside the projector to the outside of the projection; The reflector is arranged in the outer shell and is used for reflecting the light emitted by the display screen to the lens assembly.

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