Heat dissipation structure and projector

Abstract

The utility model belongs to the technical field of projection equipment, and discloses a heat dissipation structure and a projector. The heat dissipation structure comprises a shell, a heat dissipation piece and a flow guide piece, the shell is provided with a mounting groove for placing a heating device, a heat dissipation channel is formed in the mounting groove, and the heating device is arranged on a heat dissipation path of the heat dissipation channel; the heat dissipation piece comprises an air supply structure and heat dissipation fins, the air supply structure is arranged on the shell and communicates with the air inlet of the heat dissipation channel, and the heat dissipation fins are arranged on the shell and communicate with the air outlet of the heat dissipation channel; the flow guide part is arranged on the heat dissipation path and located on the downstream of the heating device, and the flow guide part is used for dividing air into multiple streams and controlling the multiple streams to flow towards the heat dissipation fins. Through the above arrangement, air can be dispersed into multiple streams from a single stream, the contact area with the surfaces of the heat radiation fins is increased, the phenomena of turbulent flow and accumulation of the air in the heat radiation channel are reduced, the heat radiation effect is effectively improved, and the service life of the projector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of projection equipment technology, and in particular to a heat dissipation structure and a projector. Background Technology

[0002] As people's living standards improve, they are using projectors more and more. A projector contains multiple heat-generating components and corresponding cooling fans. These fans dissipate heat from the projector's heat sink. To further improve heat dissipation, existing projectors also incorporate cooling fins at the end of the cooling airflow. These fins increase the contact area with hot air, thereby accelerating cooling efficiency.

[0003] However, in existing projectors, the heat dissipation channel structure between the heat-generating components and the heat sink fins is not designed reasonably, resulting in poor heat dissipation. When the internal temperature of the projector is high, it is impossible to quickly and effectively dissipate the heat inside the projector, thus failing to meet the user's demand for a better user experience.

[0004] Therefore, it is necessary to design a heat dissipation structure and a projector to solve the problems existing in the current technology. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation structure and a projector to improve the heat dissipation effect of the projector, meet the comfort requirements of use in various situations, extend the service life of the projector, and ensure the safe and reliable use of the projector.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A heat dissipation structure is disposed inside the projector, the heat dissipation structure comprising:

[0008] The housing has a mounting slot for placing a heating element, and a heat dissipation channel is formed in the mounting slot. The heating element is disposed on the heat dissipation path of the heat dissipation channel.

[0009] A heat dissipation component includes an air supply structure and heat dissipation fins. The air supply structure is disposed on the housing and connected to the air inlet of the heat dissipation channel. The heat dissipation fins are disposed on the housing and connected to the air outlet of the heat dissipation channel.

[0010] A flow guide is disposed on the heat dissipation path and located downstream of the heat-generating device. The flow guide is used to divide the air flowing through the heat-generating device into multiple streams and control the multiple streams to flow towards the heat dissipation fins.

[0011] Preferably, the airflow guide includes at least one airflow guide plate, one end of which extends toward the heat dissipation fins.

[0012] Preferably, two guide plates are arranged side by side and spaced apart within the heat dissipation channel.

[0013] Preferably, the two guide plates are offset from one end of the heat-generating device, so that the distance between one end of the two guide plates and the heat-generating device is not equal.

[0014] Preferably, the flow guide includes a plurality of flow guide columns arranged and spaced apart, wherein the plurality of flow guide columns are connected on the wall of the same side and define a flow guide surface that can contact the flow stream.

[0015] Preferably, two flow guide columns are arranged side-by-side between the heat-generating device and the heat dissipation fins in a direction perpendicular to the flow guide surface.

[0016] Preferably, the guiding surface of the guide member is arc-shaped.

[0017] Preferably, the outer surface of the flow guide is also provided with a matte layer.

[0018] Preferably, the matte layer includes an OPP matte film or a matte foil film.

[0019] The projector includes the aforementioned heat dissipation structure.

[0020] The beneficial effects of this utility model are:

[0021] This embodiment provides a heat dissipation structure. The housing of the heat dissipation structure has a mounting groove for placing a heat-generating device, and a heat dissipation channel is formed within the mounting groove. The heat-generating device is positioned along the heat dissipation path of the heat dissipation channel. The heat dissipation component includes an air supply structure and heat dissipation fins. The air supply structure is mounted on the housing and connected to the air inlet of the heat dissipation channel. The heat dissipation fins are mounted on the housing and connected to the air outlet of the heat dissipation channel. A flow guide is positioned along the heat dissipation path and downstream of the heat-generating device. The flow guide is used to divide the air flowing through the heat-generating device into multiple streams and can control the flow of these multiple streams towards the heat dissipation fins. By configuring the flow guide, the air can be dispersed from a single stream into multiple streams, which not only increases the contact area with the surface of the heat dissipation fins but also reduces turbulence and accumulation of air in the heat dissipation channel. This allows the air to achieve stable thermal contact with the heat dissipation fins along the flow guide, thereby effectively improving the heat dissipation effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the heat dissipation structure provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is an exploded view of the heat dissipation structure provided in Embodiment 1 of this utility model;

[0024] Figure 3 This is a top view of the housing provided in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the heat dissipation structure provided in Embodiment 2 of this utility model.

[0026] In the picture:

[0027] 100. Heating element; 200. Light source assembly;

[0028] 1. Housing; 11. Mounting slot; 121. Air inlet section; 122. Transition section; 123. Exhaust section;

[0029] 21. Air supply structure; 211. Mounting components; 212. Fan; 22. Heat dissipation fins;

[0030] 3. Flow guide; 31. Flow guide plate; 32. Flow guide column. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] The technical solution provided by this utility model will be described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] Combination Figures 1 to 3 As shown, this embodiment provides a heat dissipation structure, which is installed inside the projector and can dissipate the heat generated when the projector is working to the outside, reduce the accumulation of heat inside the projector, thereby reducing the temperature of the projector during operation and keeping the projector within a suitable operating temperature range.

[0038] Specifically, the heat dissipation structure includes a housing 1, a heat sink, and a flow guide 3. The housing 1 has a mounting groove 11 for placing a heat-generating device 100, and a heat dissipation channel is formed within the mounting groove 11. The heat-generating device 100 is positioned on the heat dissipation path of the heat dissipation channel. The heat sink includes an air supply structure 21 and heat dissipation fins 22. The air supply structure 21 is mounted on the housing 1 and connected to the air inlet of the heat dissipation channel. The heat dissipation fins 22 are mounted on the housing 1 and connected to the air outlet of the heat dissipation channel. The flow guide 3 is positioned on the heat dissipation path and downstream of the heat-generating device 100. The flow guide 3 is used to divide the air flowing through the heat-generating device 100 into multiple streams and can control the flow of these multiple streams towards the heat dissipation fins 22. By setting the above-mentioned air guide 3, the air can be dispersed from a single stream into multiple streams, which not only increases the contact area with the surface of the heat dissipation fins 22, but also reduces the phenomenon of air turbulence and accumulation in the heat dissipation channel, so that the air can achieve stable thermal contact with the heat dissipation fins 22 along the air guide 3, thereby effectively improving the heat dissipation effect.

[0039] Optionally, in this embodiment, the heat-generating device 100 mainly includes a display screen, which is vertically disposed within the housing 1. The heat dissipation channel includes an air inlet section 121, a transition section 122, and an exhaust section 123. An opening is provided at the bottom of the housing 1, forming the transition section 122. The horizontal cross-sectional shape of the opening is the same as that of the display screen and is elongated. An air supply structure 21 is provided at the bottom left side of the transition section 122. The air supply structure 21 includes a mounting member 211 and a fan 212. The mounting member 211 is suspended and fixed to the bottom of the housing 1, and the fan 212 is located inside the mounting member 211. The aforementioned heat dissipation function is formed on the mounting member 211. The air intake section 121 inside the fan 212; the area on the housing 1 located to the right of the transition section 122 forms a light source mounting area and the aforementioned exhaust section 123 through a baffle. The light source mounting area is used to install the light source assembly 200, which can emit a light beam and direct the emitted light beam onto the display screen. The exhaust section 123 is located on one side of the light source mounting area. The air inlet of the exhaust section 123 is connected to the transition section 122, and the air outlet of the exhaust section 123 is equipped with heat dissipation fins 22. The air guide 3 is installed inside the exhaust section 123.

[0040] With the above configuration, outside air can enter the heat dissipation channel from the bottom of the projector. Driven by the air supply structure 21, it passes through the air inlet section 121 and enters the housing 1 through the transition section 122. It makes thermal contact with the display screen located in the housing 1, fully absorbing the heat generated by the display screen. Then, the flow angle is changed, and it flows horizontally through the exhaust section 123 to the heat dissipation fins 22. This realizes the circulation of air in the projector, ensuring that the heat generated by the main heat dissipation components (such as the display screen) can be stably discharged, thereby improving the safety and reliability of the projector.

[0041] Specifically, refer to Figure 3 As shown, in this embodiment, the airflow guide 3 includes at least one airflow guide plate 31. One end of the airflow guide plate 31 extends towards the heat dissipation fins 22, thereby dividing the exhaust section 123 into at least two flow channels. Thus, when the air that has finished heat transfer with the display screen enters the exhaust section 123, the air can be divided into at least two streams and enter at least two flow channels respectively. Under the guidance of the airflow guide plate 31, at least two streams can flow along the guiding surfaces on both sides of the airflow guide plate 31 through the exhaust section 123, reducing the generation of eddies and other phenomena in the transition area between the transition section 122 and the exhaust section 123, reducing air accumulation, and thereby achieving the technical effect of improving the heat dissipation of the projector.

[0042] In one embodiment, two guide vanes 31 are arranged side-by-side and spaced apart within the heat dissipation channel. This allows air to be divided into three streams that make thermal contact with the heat dissipation fins 22, thereby maximizing the heat dissipation efficiency of the projector with the housing 1 within a limited installation space. Of course, it is understood that in other alternative embodiments, the number of baffles can be appropriately increased or decreased according to actual conditions. As long as the heat dissipation efficiency of the projector meets the requirements, it is within the protection scope of this utility model.

[0043] Furthermore, the two guide vanes 31 are staggered at one end near the heating element 100, so that the distance between one end of the two guide vanes 31 and the heating element 100 is not equal. That is, the horizontal distance between one end of the guide vane 31 and the heating element 100 is greater than the horizontal distance between one end of the other guide vane 31 and the heating element 100. With the above arrangement, the guide vane 31 closer to the heating element 100 can more effectively guide the airflow, making it less likely to flow back into the heating element 100. The guide vane 31 farther from the heating element 100 can allow some airflow to enter at different angles or speeds, which helps to disperse the hot air accumulated in the stagnant area between the transition section 122 and the exhaust section 123. This reduces the risk of hot air circulating and accumulating near the heating element 100 and promotes smoother delivery of hot air into the exhaust section 123, thereby improving the heat exchange efficiency.

[0044] Furthermore, in this embodiment, both guide plates 31 are arc plates, so that the guiding surface of the guide plate 31 is arc-shaped, which can significantly reduce the phenomenon of single stream separation and vortex generation in the flow channel, so that the airflow can change the delivery direction more smoothly along the surface of the guide plate 31, thereby reducing flow resistance and noise.

[0045] Furthermore, since a light source assembly 200 is located near the air guide plate 31, some of the light emitted by the light source assembly 200 is emitted outward through the exhaust section 123. The air guide plate 31 absorbs this light, resulting in a higher temperature, which is detrimental to reducing the projector's temperature during use. To further address this issue, this embodiment also provides a matte layer on the outer surface of the air guide 3. This matte layer isolates the air guide plate 31 from light, reducing light absorption by the air guide plate 31 and thus preventing the air guide plate 31 from overheating. This ensures effective control of the projector's internal temperature during use, providing a superior user experience.

[0046] Preferably, the matte layer includes an OPP matte film or a matte foil film. The specific type selected is adapted to the luminous power of the light source component 200, as long as it can significantly reduce the absorption of light by the guide plate 31 when the projector is used.

[0047] This utility model also provides a projector, including a light source assembly 200, a display screen, and the aforementioned heat dissipation structure. The light source assembly 200 and the display screen are housed within the housing 1 of the heat dissipation structure. Since the light source assembly 200 and the display screen are common components in the projector field, they will not be described in detail here. By incorporating the aforementioned heat dissipation structure within the projector, the heat generated by the display screen during operation can be dissipated from the projector through the heat dissipation channel. Simultaneously, the heat exchange efficiency between the heat and the heat dissipation fins 22 is accelerated under the action of the airflow guide 3, thereby ensuring that the projector meets the requirements for user comfort under different conditions, extending the projector's service life, and providing better safety and reliability in use.

[0048] Example 2

[0049] This embodiment provides a heat dissipation structure, which differs from the heat dissipation structure provided in the following ways:

[0050] refer to Figure 4 As shown, in this embodiment, the flow guide 3 includes a plurality of flow guide columns 32 arranged and spaced apart. The plurality of flow guide columns 32 are connected to the wall on the same side and define a flow guide surface that can contact the flow stream. With the above configuration, the columnar flow guide 3 provided in this embodiment can reduce airflow resistance and turbulence generation more than the plate-shaped flow guide 3 in Embodiment 1, and the airflow stability is better, thereby further improving the flow efficiency of the flow stream.

[0051] Furthermore, along a direction perpendicular to the flow guiding surface, at least two flow guiding columns 32 are arranged side-by-side between the heating device 100 and the heat dissipation fins 22 to divide the exhaust section 123 into three flow channels in a direction perpendicular to the flow guiding surface. It is worth noting that since the distances between one end of the two flow guiding members 3 and the heating device 100 are not equal, the number of flow guiding columns 32 included in each flow guiding member 3 is different. For example, in this embodiment, the flow guiding member 3 near the outer wall of the housing 1 includes four flow guiding columns 32, and the flow guiding member 3 near the light source assembly 200 includes one flow guiding column 32, thus forming flow guiding members 3 with different flow guiding surface lengths.

[0052] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heat dissipating structure provided in a projector, characterized by comprising: The heat dissipation structure includes: The housing (1) has a mounting groove (11) for placing a heating device (100), and a heat dissipation channel is formed in the mounting groove (11), and the heating device (100) is disposed on the heat dissipation path of the heat dissipation channel; The heat dissipation component includes an air supply structure (21) and heat dissipation fins (22). The air supply structure (21) is disposed on the housing (1) and connected to the air inlet of the heat dissipation channel. The heat dissipation fins (22) are disposed on the housing (1) and connected to the air outlet of the heat dissipation channel. The air guide (3) is disposed on the heat dissipation path and located downstream of the heat-generating device (100). The air guide (3) is used to divide the air flowing through the heat-generating device (100) into multiple streams and control the multiple streams to flow towards the heat dissipation fins (22).

2. The heat dissipating structure according to claim 1, wherein The flow guide (3) includes at least one flow guide plate (31), one end of which extends toward the heat dissipation fins (22).

3. The heat dissipating structure according to claim 2, wherein Two guide plates (31) are arranged side by side and spaced apart within the heat dissipation channel.

4. The heat dissipating structure according to claim 3, wherein The two guide plates (31) are offset from one end of the heating device (100) so that the distance between one end of the two guide plates (31) and the heating device (100) is not equal.

5. The heat dissipating structure according to claim 1, wherein The flow guide (3) includes a plurality of flow guide columns (32) arranged and spaced apart. The plurality of flow guide columns (32) are connected on the wall on the same side and define a flow guide surface that can contact the flow stream.

6. The heat dissipating structure according to claim 5, wherein Along a direction perpendicular to the flow guiding surface, two flow guiding columns (32) are arranged side by side between the heat-generating device (100) and the heat dissipation fins (22).

7. The heat dissipation structure according to claim 2 or 5, characterized in that, The flow guiding surface of the flow guiding component (3) is arc-shaped.

8. The heat dissipation structure according to claim 2 or 5, characterized in that, The outer surface of the flow guide (3) is also provided with a matte layer.

9. The heat dissipation structure according to claim 8, characterized in that, The matte layer includes an OPP matte film or a matte foil film.

10. A projector, characterized in that, The heat dissipation structure includes any one of claims 1-9.

Images