A projector with air path cooling

Abstract

The application provides a wind path heat dissipation projector, which comprises a shell, a wind path assembly and an optical assembly. The shell is provided with an air inlet and an air outlet. The wind path assembly is located in the shell, and a main wind path is formed between the wind path assembly and the shell. The wind path assembly generates an inclined air direction in the main wind path. The two ends of the main wind path are communicated with the air inlet and the air outlet respectively. The optical assembly is connected with the shell, and is located in the main wind path. The inclined air direction flows through the optical assembly. A compensation wind path is communicated with the main wind path, and is located at the end of the inclined air direction away from the optical assembly. The above structure can fully dissipate heat.

Description

Technical Field

[0001] This application relates to the field of projectors, and more particularly to a projector with airflow cooling. Background Technology

[0002] In some air-cooled heat dissipation components, centrifugal fans are used as air intake components. Because centrifugal fans rely on centrifugal force to throw air out of the impeller, the airflow direction of a centrifugal fan is perpendicular to the fan inlet axis, and the airflow and air pressure distribution across the entire outlet is not uniform. This creates a tilting or swirling effect.

[0003] When the sloping main airflow encounters these obstacles and bends, it generates enormous wind resistance. The airflow naturally chooses the path of least resistance, causing the wind speed to drop sharply or even form vortices in the latter half of the airflow path, corners, or behind obstacles. These low-speed zones are heat dissipation blind spots, where heat cannot be carried away in time.

[0004] Therefore, a projector with adequate heat dissipation and airflow cooling is needed. Utility Model Content

[0005] In view of this, it is necessary to provide a projector with adequate heat dissipation and airflow cooling to solve the above problems.

[0006] Embodiments of this application provide a projector with airflow-based heat dissipation, comprising:

[0007] The casing has an air inlet and an air outlet;

[0008] A wind tunnel assembly is located inside the housing and forms a main wind tunnel with the housing. The wind tunnel assembly generates an inclined wind direction in the main wind tunnel. The two ends of the main wind tunnel are respectively connected to the air inlet and the air outlet.

[0009] An optical component is connected to the housing and located within the main airflow path, with the wind flowing through it at an angle.

[0010] The compensation air path is connected to the main air path and is located at the end of the inclined air path away from the optical components.

[0011] In at least one embodiment of this application, the compensation wind path is located at an end where both the flow direction and the tilt direction of the tilted wind are far away from the optical component.

[0012] In at least one embodiment of this application, the housing is provided with a compensation air inlet, the compensation air inlet is connected to the main air passage, and the compensation air inlet is directly facing the optical component;

[0013] The compensation air inlet is located at the end of the inclined airflow direction away from the optical component, and the compensation air inlet is located at the end of the main airflow path near the air outlet.

[0014] In at least one embodiment of this application, the plurality of the compensation air inlets are configured as matrix compensation air inlets.

[0015] In at least one embodiment of this application, the airflow assembly includes:

[0016] An air inlet component is positioned directly opposite the air inlet.

[0017] The air outlet component is positioned directly opposite the air outlet.

[0018] The air duct is connected to the housing and separates the main air duct.

[0019] In at least one embodiment of this application, the air duct is respectively arranged perpendicularly to the air inlet and the air outlet, forming a first bend and a second bend of the corresponding main air duct;

[0020] The compensation air inlet is located at the second bend of the main air path.

[0021] In at least one embodiment of this application, the optical components are spaced apart in the main airflow path.

[0022] In at least one embodiment of this application, the air inlet is configured as a centrifugal fan.

[0023] In at least one embodiment of this application, the air outlet is provided with an axial fan.

[0024] In at least one embodiment of this application, the airflow-cooled projector further includes:

[0025] A filter screen is located between the air inlet and the air inlet component.

[0026] The aforementioned airflow cooling projector uses an inclined airflow component in the main airflow path to direct airflow through the optical component for direct heat dissipation. At the same time, a compensation airflow path is connected at the end of the inclined airflow path away from the optical component. To address the problem of uneven airflow distribution caused by the centrifugal fan, airflow is actively supplemented in low-pressure areas that are prone to heat dissipation blind spots, such as the latter half of the airflow path or corners. This breaks up eddies and increases the wind speed in low-speed areas, thereby eliminating heat dissipation blind spots and ensuring that heat is carried away evenly and efficiently. Attached Figure Description

[0027] Figure 1 This is a perspective view of the airflow cooling projector described in this application;

[0028] Figure 2 This is a top view of the airflow cooling projector described in this application;

[0029] Figure 3 for Figure 2 Sectional view of AA;

[0030] Figure 4 This is a front view of the airflow cooling projector described in this application;

[0031] Figure 5 for Figure 4 Sectional view of BB;

[0032] Explanation of main component symbols

[0033] 100. Projector with airflow cooling; 10. Housing; 11. Air inlet; 12. Air outlet; 20. Airflow assembly; 21. Main airflow; 22. Air inlet component; 23. Air outlet component; 24. Airflow channel; 30. Optical assembly; 40. Compensating airflow; 41. Compensating air inlet; 50. Filter; Detailed Implementation

[0034] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0035] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0036] This application provides an embodiment of a projector with airflow cooling, including a housing, an airflow assembly, and an optical assembly. The housing has an air inlet and an air outlet. The airflow assembly is located within the housing, forming a main airflow path with the housing. The airflow assembly generates an inclined airflow within the main airflow path, and the two ends of the main airflow path are respectively connected to the air inlet and the air outlet. The optical assembly is connected to the housing and located within the main airflow path, through which the inclined airflow flows. A compensation airflow path is connected to the main airflow path and is located at the end of the inclined airflow path away from the optical assembly.

[0037] The aforementioned airflow cooling projector uses an inclined airflow component in the main airflow path to direct airflow through the optical component for direct heat dissipation. At the same time, a compensation airflow path is connected at the end of the inclined airflow path away from the optical component. To address the problem of uneven airflow distribution caused by the centrifugal fan, airflow is actively supplemented in low-pressure areas that are prone to heat dissipation blind spots, such as the latter half of the airflow path or corners. This breaks up eddies and increases the wind speed in low-speed areas, thereby eliminating heat dissipation blind spots and ensuring that heat is carried away evenly and efficiently.

[0038] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] Please see Figures 1-5 This application provides an embodiment of a projector 100 with airflow cooling, including a housing 10, an airflow assembly 20, and an optical assembly 30. The housing 10 has an air inlet 11 and an air outlet 12. The airflow assembly 20 is located within the housing 10, forming a main airflow path 21 with the housing 10. The airflow assembly 20 generates an inclined airflow within the main airflow path 21, and the two ends of the main airflow path 21 are respectively connected to the air inlet 11 and the air outlet 12. The optical assembly 30 is connected to the housing 10 and located within the main airflow path 21, through which the inclined airflow flows. A compensation airflow path 40 is connected to the main airflow path 21 and is located at the end of the inclined airflow path away from the optical assembly 30.

[0040] In this embodiment, it should be noted that the projector improves heat dissipation by optimizing the airflow structure, ensuring that the projector's optical components 30 achieve better heat dissipation efficiency during use. Specifically, a specific airflow structure is designed within the housing 10. By controlling the airflow direction, compensating for the setting of the airflow path 40, and arranging the airflow components 20, the airflow structure effectively solves the problem of potential heat dissipation blind spots and low-speed airflow areas within the airflow path, thereby significantly improving the heat dissipation effect.

[0041] First, an air inlet 11 and an air outlet 12 are provided inside the housing 10, through which air can enter and exit the interior of the projector. The airflow assembly 20 is located inside the housing 10 and, together with the housing 10, forms the main airflow path 21. This main airflow path 21 runs through the entire interior of the projector and connects to the air inlet 11 and the air outlet 12. Notably, the airflow generated by the airflow assembly 20 has an angled direction, allowing the airflow to effectively pass through the optical component 30 within the main airflow path 21, ensuring sufficient heat dissipation for the optical component 30.

[0042] In this embodiment, the optical component 30 is connected to the housing 10 and arranged within the main airflow path 21. When the airflow flows through the optical component 30 at an angle, it can directly carry away the heat generated by the optical component 30, thereby improving the heat dissipation effect. On the other hand, the other end of the main airflow path 21 is connected to the main airflow path 21 through a compensation airflow path 40. The compensation airflow path 40 is designed to actively supplement the airflow when the airflow distribution is uneven, preventing the airflow from forming low-speed zones or vortices in the latter half or corners of the main airflow path 21, which would create heat dissipation blind spots and affect the heat dissipation efficiency of the projector.

[0043] The compensation air path 40 can effectively avoid the problem of uneven airflow distribution caused by centrifugal fans, and ensure that sufficient airflow can still be provided in the latter half of the air path and corner areas, eliminating eddies and increasing the wind speed in low-speed areas, thereby ensuring that the heat during the heat dissipation process can be carried away evenly and effectively, and avoiding the decline in heat dissipation performance.

[0044] Furthermore, the connection between the compensating airflow path 40 and the main airflow path 21 allows the structure to dynamically adjust according to the airflow state inside the projector during practical applications, further improving heat dissipation. In summary, the design of the airflow path assembly 20 and the compensating airflow path 40 ensures uniform airflow throughout the projector, eliminates heat dissipation blind spots, and ensures that the projector's optical components 30 can operate stably for extended periods at lower temperatures, thereby improving the projector's lifespan and stability. This not only solves the problem of uneven heat dissipation in traditional projectors but also significantly improves airflow efficiency and stability through innovative airflow design, resulting in enhanced heat dissipation performance.

[0045] In this embodiment, it should be noted that a portion of the airflow channel 24 can be formed by heat-absorbing optical elements in the optical assembly 30 that absorb opaque light and convert it into heat energy. Specifically, these heat-absorbing optical elements absorb opaque light emitted by the light source and convert it into heat energy, thereby heating the surrounding air and providing the necessary heat drive for the heat dissipation process. Furthermore, both the main airflow channel 21 and the compensation airflow channel 40 dissipate heat from the heat-absorbing optical elements.

[0046] To maximize heat dissipation efficiency, both the main airflow path 21 and the compensation airflow path 40 flow close to the surface of the heat-absorbing optical component. This allows the airflow to make close contact with the surface of the heat-absorbing optical component, carrying away the heat generated by the optical component more efficiently. The cooperation between the main airflow path 21 and the compensation airflow path 40 also prevents heat from accumulating or forming local hot spots during the heat dissipation process.

[0047] In addition, the inclined airflow direction of the main airflow path 21 ensures that the airflow can effectively remove the heat from the optical components when it flows over them, while the compensation airflow path 40 further enhances the heat dissipation effect by actively supplementing the airflow, avoiding the formation of heat dissipation blind spots in low-pressure areas and corners.

[0048] In summary, by closely integrating the main airflow path 21 and the compensation airflow path 40 with the surface of the heat-absorbing optical component, it is ensured that the airflow can fully contact the surface of the optical component and efficiently remove heat, thereby improving the overall heat dissipation effect of the projector and ensuring the stable operating temperature of the optical component 30.

[0049] In one specific embodiment, the compensation wind path 40 is located at the end where both the flow direction and the tilt direction of the tilted wind are far away from the optical component 30.

[0050] In this embodiment, it should be noted that the design of the compensating airflow path 40 plays a crucial role in airflow distribution. Especially after the airflow encounters the optical component 30 and tilts, the proper arrangement of the compensating airflow path 40 effectively solves the heat dissipation blind spot problem caused by uneven airflow. The compensating airflow path 40 is located at the end where both the flow direction and tilt direction of the tilted airflow are far from the optical component 30, ensuring that the compensating airflow path 40 can actively replenish airflow to the low-pressure area after the airflow passes through the optical component 30, thus solving the problem of uneven airflow distribution.

[0051] The location of the compensating airflow path 40 is specifically optimized for the airflow direction in the main airflow path 21. Specifically, the compensating airflow path 40 is located at the end where both the flow direction and the tilt direction of the inclined airflow are far from the optical component 30. This design effectively solves the problem of uneven airflow distribution after passing through the optical component 30, especially addressing the low-speed zones that may form in the latter half or corner areas of the main airflow path 21. By placing the compensating airflow path 40 at this location, the airflow in these areas is supplemented, the formation of low-speed airflow is avoided, and eddies are eliminated, thereby improving the efficiency of the entire heat dissipation process.

[0052] The compensated airflow path 40 effectively guides airflow to areas that might otherwise have heat dissipation blind spots, ensuring uniform airflow and preventing airflow stagnation or uneven distribution around the optical components 30. This structural design not only improves airflow efficiency but also enhances heat dissipation uniformity, thereby ensuring that the optical components 30 operate at their optimal temperature and improving the projector's heat dissipation performance and operational stability.

[0053] In summary, this embodiment, by precisely arranging the position of the compensating air path 40, ensures that the airflow remains uniform under the influence of the inclined wind direction, avoids the occurrence of heat dissipation blind spots, thereby maximizing the heat dissipation effect and improving the overall performance and reliability of the projector.

[0054] In one specific embodiment, the housing 10 has a compensation air inlet 41, which is connected to the main air passage 21 and faces the optical component 30. The compensation air inlet 41 is located at the end of the inclined airflow direction away from the optical component 30, and at the end of the main air passage 21 near the air outlet 12.

[0055] In this embodiment, it should be noted that the compensating air inlet 41 addresses the problem of uneven airflow within the main airflow path 21, particularly the potential heat dissipation blind spots encountered by the airflow near the optical component 30. By providing the compensating air inlet 41 and connecting it to the main airflow path 21, additional air supply can be provided after the airflow passes through the optical component 30, effectively improving the uniformity and velocity of the airflow, thereby further optimizing the heat dissipation effect.

[0056] A compensating air inlet 41 is provided in the housing 10. The compensating air inlet 41 is connected to the main air passage 21 and is directly opposite the optical component 30. The position and arrangement of the compensating air inlet 41 are carefully designed to ensure that after the airflow passes through the optical component 30, the compensating air inlet 41 can replenish the airflow into the main air passage 21 in a timely manner, reduce the stagnation or eddy current phenomenon of airflow, and ensure that the heat dissipation around the optical component 30 is not obstructed.

[0057] Specifically, the compensating air inlet 41 is located at the end of the inclined airflow direction away from the optical component 30, and at the end of the main airflow path 21 near the air outlet 12. This ensures that the airflow is replenished in a timely manner after leaving the optical component 30, and the arrangement of the compensating air inlet 41 helps to break the airflow stagnation in the low-pressure area and prevent the formation of heat dissipation blind spots. In this way, not only can the low-speed area of ​​airflow in the rear section of the main airflow path 21 be eliminated, but the formation of eddies can also be effectively prevented, thereby ensuring that the airflow remains uniform throughout the entire heat dissipation system.

[0058] By setting up the compensation air inlet 41, an active supplementary airflow can be generated to ensure that the airflow in the main air path 21 can flow continuously and effectively, thereby improving the heat dissipation efficiency, avoiding the occurrence of low-speed zones, ensuring that the heat of the optical components 30 can be carried away in time, and reducing the impact of heat accumulation on the projector performance.

[0059] In summary, by opening a compensating air inlet 41 inside the housing 10, combined with the optimized design of the main air path 21 and the airflow direction, the uniformity of airflow is effectively improved, the heat dissipation effect is enhanced, and the stable operating temperature of the optical components 30 is ensured, thereby improving the overall heat dissipation performance and service life of the projector.

[0060] In one specific embodiment, the plurality of the compensation air inlets 41 are configured as matrix compensation air inlets 41.

[0061] In this embodiment, it should be noted that the multiple compensating air inlets 41 are designed in a matrix arrangement, which further enhances the uniform distribution of airflow and heat dissipation efficiency. By arranging the compensating air inlets 41 in a matrix, the supplementary airflow can be more effectively distributed within the main airflow path 21, thereby avoiding the problem of uneven local airflow and ensuring the high efficiency and stability of the entire heat dissipation process.

[0062] Multiple compensating air inlets 41 are arranged in a matrix, ensuring that the compensating airflow enters the main air passage 21 evenly from multiple points, especially in the low-speed region after the airflow passes through the optical component 30. The matrix arrangement of the compensating air inlets 41 provides multiple air intake points, avoiding the airflow concentration and unevenness that might occur when airflow enters the main air passage 21 through only a single air inlet 11. This design allows for a wider distribution of airflow throughout the main air passage 21, effectively improving heat dissipation.

[0063] The matrix-type compensating air inlets 41 are positioned at the end of the main air path 21 near the outlet 12, directly facing the airflow direction of the optical component 30. This arrangement ensures that after the airflow passes through the optical component 30, it can be promptly replenished through multiple compensating air inlets 41, thus avoiding airflow stagnation or uneven distribution. The matrix-type compensating air inlets 41 not only effectively replenish airflow at multiple locations but also provide flexible airflow compensation in different flow areas, further improving airflow velocity and uniformity.

[0064] In addition, the design of the matrix-type compensated air inlet 41 allows the supplementary airflow to cover a larger area, further reducing the formation of low-speed areas or vortices, and ensuring that the entire airflow system maintains efficient operation during heat dissipation.

[0065] In summary, by designing the compensating air inlet 41 in a matrix arrangement, this embodiment can achieve uniform airflow distribution, effectively improve heat dissipation efficiency, reduce airflow stagnation, eliminate heat dissipation blind spots, and ensure that the optical components 30 can work for a long time at a stable temperature, thereby improving the overall heat dissipation performance and service life of the projector.

[0066] It should be noted that this embodiment does not limit the shape of the compensating air inlet 41, as long as it can be connected to the main air passage 21.

[0067] In one specific embodiment, the airflow assembly 20 includes an air inlet 22, an air outlet 23, and an airflow channel 24.

[0068] The air inlet 22 is positioned directly opposite the air inlet 11. The air outlet 23 is positioned directly opposite the air outlet 12. The air passage 24 is connected to the housing 10 and separates the main air passage 21.

[0069] In this embodiment, it should be noted that the airflow assembly 20, through the arrangement of the air inlet 22, the air outlet 23, and the airflow channel 24, ensures that air can flow smoothly and efficiently through the interior of the projector, achieving a good heat dissipation effect. The airflow assembly 20, through its connection with the housing 10 and the isolation configuration of the main airflow 21, effectively guides and controls the airflow path, thereby optimizing the heat dissipation performance of the projector.

[0070] The airflow assembly 20 mainly consists of three parts: an air inlet 22, an air outlet 23, and an airflow channel 24. The air inlet 22 is positioned directly opposite the air inlet 11 to ensure that air can enter the projector from the outside and be guided into the airflow system. The air outlet 23 is positioned directly opposite the air outlet 12 to ensure that air is smoothly discharged from the projector after passing through the entire airflow path, thereby avoiding airflow stagnation and further improving the heat dissipation effect.

[0071] The airflow channel 24 is connected to the housing 10 and separates the main airflow channel 21, ensuring that the airflow flows along the designed path and avoiding irregular airflow or deviation from the main airflow channel 21. By setting the airflow channel 24, the airflow within the main airflow channel 21 can be made more uniform, maximizing coverage of all parts of the projector, especially the optical components 30 and other areas with high heat dissipation requirements.

[0072] Specifically, the airflow assembly 20 can effectively prevent the airflow from being severely bent or affected by other resistance in the main airflow path 21, thereby reducing airflow stagnation or increased resistance, ensuring smooth airflow and fully carrying away heat, and improving the heat dissipation efficiency of the projector.

[0073] In summary, the configuration of the air inlet 22, air outlet 23, and air duct 24 enables the airflow to flow orderly through the projector's interior, avoiding uneven airflow in the air duct, improving the heat dissipation efficiency of the entire air duct system, ensuring stable temperature control of the optical components 30 and other important components, thereby improving the projector's performance and heat dissipation capabilities.

[0074] In one specific embodiment, the air duct 24 is perpendicularly arranged to both the air inlet 22 and the air outlet 23. The perpendicular arrangement of the air duct 24 to the air inlet 22 forms a first bend in the corresponding main air duct 21. The perpendicular arrangement of the air duct 24 to the air outlet 23 forms a second bend in the corresponding main air duct 21.

[0075] In this embodiment, it should be noted that the vertical arrangement of the air duct 24 with the air inlet 22 and the air outlet 23 makes the airflow in the air duct more orderly and smooth. In particular, the arrangement of airflow guidance through two bends in the main air duct 21 effectively improves the airflow efficiency, thereby enhancing the effect of the entire heat dissipation system.

[0076] The airflow duct 24, perpendicular to the air inlet 22 and the air outlet 23, forms a first bend and a second bend at different locations in the main airflow duct 21. Specifically, the first bend is formed by the perpendicular alignment of the airflow duct 24 with the air inlet 22. After entering through the air inlet 22 at this bend, the airflow flows along the direction of the first bend in the main airflow duct 21. Subsequently, the airflow continues to flow and passes through the second bend in the main airflow duct 21, which is also formed by the perpendicular alignment of the airflow duct 24 with the air outlet 23. Through the design of these two bends, the airflow path is effectively guided, and due to the change in airflow at the bends, heat removal is accelerated, avoiding uneven airflow distribution.

[0077] Furthermore, the compensating air inlet 41 is designed to be located at the second bend of the main airflow path 21. This ensures that the airflow distribution remains uniform after passing through the two bends of the main airflow path 21, avoiding localized low-speed areas caused by the airflow passing through bends. The placement of the compensating air inlet 41 ensures airflow replenishment, further breaking up any potential eddies and stagnant airflow, thereby improving the airflow velocity and uniformity within the main airflow path 21 and enhancing the heat dissipation effect.

[0078] In summary, by forming two bends in the vertical arrangement of the air duct 24 with the air inlet 22 and the air outlet 23, and by placing the compensating air inlet 41 at the second bend, the airflow direction is effectively guided and the uniformity of airflow distribution is ensured. This optimizes the airflow path within the air duct, effectively eliminating heat dissipation blind spots and low-speed airflow areas, significantly improving heat dissipation performance and efficiency, and ensuring that the optical components 30 and other components inside the projector can operate stably within a suitable temperature range.

[0079] In one specific embodiment, the optical components 30 are spaced apart on the main air path 21.

[0080] In this embodiment, it should be noted that the spacing of the optical components 30 within the main airflow path 21 allows airflow to flow between the optical components 30, ensuring that each optical component 30 receives sufficient heat dissipation. Through this reasonable spacing arrangement, the airflow can effectively cover the surface of the optical components 30, carrying away the heat they generate, thereby improving the overall heat dissipation effect and ensuring stable temperature control of the optical components 30.

[0081] Optical components 30 are spaced apart within the main airflow path 21, allowing airflow to be evenly distributed around each component as it flows through the path. Specifically, the optical components 30 are not densely packed, but arranged with appropriate spacing. This ensures sufficient space for heat exchange as the airflow passes over each component, carrying away the heat generated by it. Simultaneously, this spacing avoids airflow resistance caused by overly dense optical components, further improving airflow velocity and heat dissipation efficiency.

[0082] Furthermore, the spaced arrangement of the optical components 30 effectively prevents airflow stagnation or the formation of eddies. The spacing between each optical component 30 allows airflow to pass through evenly, avoiding heat dissipation blind spots caused by poor airflow in some optical components 30.

[0083] In summary, by spaced the optical components 30 within the main airflow path 21, airflow is ensured to effectively pass through each optical component 30, carrying away the generated heat and thus improving heat dissipation. This design optimizes the airflow path within the main airflow path 21, reduces airflow resistance, ensures the optical components 30 can operate stably at lower temperatures, and improves the overall heat dissipation performance and lifespan of the projector.

[0084] In one specific embodiment, the air inlet 22 is configured as a centrifugal fan.

[0085] Specifically, in this embodiment, the air inlet 22 is configured as a centrifugal fan. The centrifugal fan utilizes centrifugal force to eject air from the fan impeller, generating high air pressure, and its outlet direction is perpendicular to the fan axis. Due to the characteristics of the centrifugal fan, it can provide a strong airflow, propelling air into the main airflow path 21 and flowing to the optical components 30 and other areas requiring heat dissipation. The centrifugal fan design effectively improves airflow capacity, helping to solve the problem of uneven airflow and ensuring the efficient operation of the projector's internal cooling system. However, this results in an inclined main airflow path 21 within the airflow channel 24. This application addresses this issue by using a compensating airflow path 40.

[0086] In one specific embodiment, the air outlet 23 is equipped with an axial flow fan.

[0087] The exhaust fan 23 is configured as an axial fan. Unlike centrifugal fans, axial fans have airflow parallel to their axis, providing greater airflow and lower air pressure. By arranging an axial fan at the exhaust port 12, smooth airflow is ensured to exit the projector's interior, preventing air stagnation or the formation of localized high-temperature areas. The axial fan design plays a crucial role in ensuring smooth airflow and reducing heat dissipation blind spots, further enhancing heat dissipation performance.

[0088] In one specific embodiment, the airflow-cooled projector 100 further includes a filter 50, which is located between the air inlet 11 and the air inlet component 22.

[0089] To prevent dust and impurities from entering the projector and affecting its heat dissipation, a filter 50 is installed between the air inlet 11 and the air intake component 22. The filter 50 effectively filters impurities from the air, ensuring clean air entering the projector and preventing impurities from accumulating in the airflow system or adhering to the optical components 30, thus affecting heat dissipation efficiency. Simultaneously, the use of the filter 50 reduces the entry of airborne contaminants into the optical components 30 or other sensitive components, thereby protecting the projector's internal environment and extending its lifespan.

[0090] Therefore, the aforementioned airflow cooling projector 100 provides a method to achieve direct heat dissipation by setting an airflow component 20 with an inclined airflow direction in the main airflow 21, so that the airflow flows directionally through the optical component 30. At the same time, a compensation airflow 40 is connected at the end of the inclined airflow direction away from the optical component 30. In response to the problem of uneven airflow distribution caused by the centrifugal fan, the airflow is actively supplemented in low-pressure areas that are prone to heat dissipation blind spots, such as the rear half of the airflow or corners, to break the vortex and increase the wind speed in the low-speed area, thereby eliminating heat dissipation blind spots and ensuring that heat is carried away evenly and efficiently.

[0091] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A projector with airflow cooling, characterized in that, include: The casing has an air inlet and an air outlet; A wind tunnel assembly is located inside the housing and forms a main wind tunnel with the housing. The wind tunnel assembly generates an inclined wind direction in the main wind tunnel. The two ends of the main wind tunnel are respectively connected to the air inlet and the air outlet. An optical component is connected to the housing and located within the main airflow path, with the wind flowing through it at an angle. The compensation air path is connected to the main air path and is located at the end of the inclined air path away from the optical components.

2. The projector with airflow cooling as described in claim 1, characterized in that, The compensation air path is located at the end where both the flow direction and the tilt direction of the tilted wind are far away from the optical component.

3. The projector with airflow cooling as described in claim 1, characterized in that, The housing has a compensation air inlet, which is connected to the main air path and faces the optical component. The compensation air inlet is located at the end of the inclined airflow direction away from the optical component, and the compensation air inlet is located at the end of the main airflow path near the air outlet.

4. The projector with airflow cooling according to claim 3, characterized in that, The multiple compensation air inlets are configured as a matrix-type compensation air inlet.

5. The projector with airflow cooling according to claim 3, characterized in that, The airflow assembly includes: An air inlet component is positioned directly opposite the air inlet. The air outlet component is positioned directly opposite the air outlet. The air duct is connected to the housing and separates the main air duct.

6. The projector with airflow cooling according to claim 5, characterized in that, The air duct is perpendicular to the air inlet and the air outlet respectively, forming a first bend and a second bend in the main air duct. The compensation air inlet is located at the second bend of the main air path.

7. The projector with airflow cooling according to claim 1, characterized in that, The optical components are spaced apart in the main airflow path.

8. The projector with airflow cooling according to claim 5, characterized in that, The air inlet component is a centrifugal fan.

9. The projector with airflow cooling according to claim 5, characterized in that, The air outlet is equipped with an axial flow fan.

10. The projector with airflow cooling according to claim 5, characterized in that, The projector with airflow cooling also includes: A filter screen is located between the air inlet and the air inlet component.

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