Heat dissipation structure and display equipment

Abstract

The utility model discloses a heat dissipation structure and a display device, and belongs to the technical field of display devices, a shell of the heat dissipation structure is internally provided with a heat dissipation surface, the heat dissipation surface transmits heat to air in contact with the heat dissipation surface, a plurality of cavities in the shell are arranged on the heat dissipation surface and are sequentially communicated along the airflow direction, and the heat dissipation surface is provided with a plurality of heat dissipation holes. The air flow can sequentially flow through the cavities and absorb heat of all positions of the heat dissipation face, the projection of the air flow on the heat dissipation face is in a gradually-expanding shape, the air flow is gradually diffused into the whole shell, efficient heat dissipation is provided for the heat dissipation face, the number of heat dissipation fans can be greatly reduced, heat dissipation efficiency is improved, and meanwhile power consumption and noise of the whole machine are reduced.

Description

Technical Field

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

[0002] Outdoor displays, with their powerful information display capabilities, are widely used in advertising, traffic guidance, public information dissemination, and many other fields. During operation, outdoor displays not only have to withstand the heat generated by their own components but are also affected by ambient temperature fluctuations and solar radiation. Especially in high-temperature environments or under prolonged sunlight, the surface temperature of the display rises sharply. This not only leads to a deterioration in display quality, such as color distortion and reduced brightness, but also accelerates the aging of internal components, significantly shortening its lifespan.

[0003] When natural convection cooling is insufficient, forced cooling by adding fans has become a common industry practice. However, currently, fans are typically only installed between the screen and the wall. This layout forces airflow to move haphazardly over a relatively wide area, making it difficult to effectively concentrate airflow on the display cabinet that needs cooling. This directly results in low heat dissipation efficiency for the display surface, with cooling effects falling far short of expectations. To compensate for this inadequate cooling, the only solution is often to increase the number of fans. However, this measure not only significantly increases equipment costs and energy consumption but also brings a series of negative effects, such as increased fan noise and higher equipment failure rates, seriously impacting the overall operating efficiency and economic benefits of outdoor displays. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a heat dissipation structure and display device to solve the problem of low heat dissipation efficiency of current outdoor displays.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A heat dissipation structure includes a housing;

[0007] The housing has a heat dissipation surface and multiple chambers arranged on the heat dissipation surface and connected sequentially along the airflow direction;

[0008] The projection of the airflow onto the heat dissipation surface is gradually expanding.

[0009] Preferably, the housing is provided with multiple partitions, which divide the interior of the housing into multiple chambers, and the partitions are provided with air guide holes;

[0010] The housing has an air inlet and an air outlet. The airflow enters the housing through the air inlet and exits through the air outlet.

[0011] Preferably, the plurality of air guide holes are parallel to each other and arranged in an axisymmetric manner.

[0012] Preferably, the air guide hole is elongated.

[0013] Preferably, the housing has a front and a back, and the vent is located on the front and / or the back.

[0014] Preferably, the air inlet is located on the front side.

[0015] Preferably, in the airflow direction, the projected length of the latter air guide hole on the heat dissipation surface is 1.1 to 1.2 times the projected length of the former air guide hole on the heat dissipation surface.

[0016] Preferably, in the airflow direction, the projected length of the first air guide hole on the heat dissipation surface is 5% to 15% of the length of the heat dissipation surface.

[0017] Preferably, the number of the partitions satisfies:

[0018] N = H / 2

[0019] Where N is the number of partitions and H is the width of the heat dissipation surface.

[0020] To solve the same technical problem, this utility model also provides a display device, including a display module and a heat dissipation structure as described above, wherein the display module is connected to a housing, and a portion of the display module is located inside the housing and has a heat dissipation surface.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] The housing has a heat dissipation surface that transfers heat to the air in contact with it. Multiple chambers inside the housing are arranged on the heat dissipation surface and are connected sequentially along the airflow direction. This allows the airflow to flow through each chamber in sequence and absorb heat from various parts of the heat dissipation surface. The projection of the airflow on the heat dissipation surface is gradually expanding, and the airflow will gradually diffuse into the entire interior of the housing, providing efficient heat dissipation for the heat dissipation surface. This can significantly reduce the number of cooling fans, improve heat dissipation efficiency, and reduce the power consumption and noise of the entire machine. Attached Figure Description

[0023] Figure 1 A schematic diagram of the front structure of the heat dissipation structure of the utility model.

[0024] Figure 2 A schematic diagram of the back structure of the heat dissipation structure of the utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of the heat dissipation structure of the utility model.

[0026] In the diagram: 10, housing; 11, partition; 111, vent; 12, air inlet; 13, exhaust outlet; 14, front; 15, back; 20, heat dissipation surface; 30, chamber; 40, display module. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1

[0031] Combination Figures 1 to 3 As shown, the heat dissipation structure of this utility model is schematically illustrated, including a housing 10, which can be used to support devices that require heat dissipation.

[0032] like Figure 3 The housing 10 contains a heat dissipation surface 20 and multiple chambers 30. The heat dissipation surface 20 transfers heat to the air it contacts. The multiple chambers 30 are arranged on the heat dissipation surface 20 and are connected sequentially along the airflow direction, allowing the airflow to flow through each chamber 30 in sequence and absorb heat from various points on the heat dissipation surface 20. The multiple chambers 30 help guide the airflow, making it more regular and facilitating efficient heat transfer. The projection of the airflow on the heat dissipation surface 20 is gradually expanding, and the airflow will gradually diffuse into the entire interior of the housing 10, providing efficient heat dissipation for the heat dissipation surface 20 and significantly reducing the number of cooling fans.

[0033] In some alternative embodiments, two adjacent chambers 30 in the airflow direction can be connected by an air guide channel, which can be funnel-shaped to diffuse the airflow.

[0034] In this embodiment, the housing 10 is provided with multiple partitions 11, which divide the interior of the housing 10 into multiple chambers 30. Each partition 11 has an air guide hole 111, which connects the chambers 30 on both sides of the partition 11. The air guide hole 111 is preferably elongated to accommodate the cuboid shape of the housing 10. The multiple partitions 11 are parallel to each other, which also ensures that the multiple air guide holes 111 are arranged parallel to each other. The multiple air guide holes 111 are arranged axially symmetrically, meaning that the center point of each air guide hole 111 lies on the same reference line, and this reference line is perpendicular to the extension direction of the partition 11. This structural design ensures the uniformity and efficiency of airflow when passing through the partitions 11. The main direction of airflow is set along this reference axis. In the airflow direction, the opening area of ​​the preceding air guide hole 111 is smaller than the opening area of ​​the following air guide hole 111, allowing the airflow to gradually diffuse. Moreover, the air vent 111 is located in the middle of the partition 11. The airflow velocity in the middle of the chamber 30 is faster and moves towards the next chamber 30 in the airflow direction. The air on both sides of the chamber 30 flows more slowly under the influence of the main airflow, providing heat exchange for the heat dissipation surfaces 20 on both sides of the chamber 30.

[0035] More specifically, one side of the partition 11 is connected to the heat dissipation surface 20, forming a chamber 30 between the partition 11 and the heat dissipation surface 20. Air vents 111 are provided on the side of the partition 11 connected to the heat dissipation surface 20, which facilitates airflow closer to the heat dissipation surface 20 for rapid heat exchange and cooling of the heat dissipation surface 20.

[0036] The housing 10 has an air inlet 12 and an exhaust 13. Airflow enters the housing 10 through the air inlet 12 and exits through the exhaust 13. The air inlet 12 is located upstream in the airflow direction, and the exhaust 13 is located downstream in the airflow direction. One or both of the air inlet 12 and the exhaust 13 are equipped with a cooling fan, which can drive air movement.

[0037] Furthermore, such as Figure 1 and Figure 2The housing 10 has a front side 14 and a back side 15. An exhaust port 13 is located on either the front side 14 or the back side 15. The opening area of ​​the exhaust port 13 is larger than the opening area of ​​the last air guide hole 111 in the airflow direction, so that the airflow gradually diffuses and is discharged to the outside. The location of the exhaust port 13 is selected according to the position of the device on the housing 10. For example, if the heat-generating device is located on the front side 14 of the housing 10, the exhaust port 13 is located on the back side 15 of the housing 10 to optimize the airflow path and improve heat dissipation efficiency. Of course, if the back side 15 of the housing 10 lacks space for air escape, the exhaust port 13 can also be located on the front side 14 of the housing 10.

[0038] Furthermore, the air inlet 12 is located on the front side 14, and the air inlet 12 and the exhaust port 13 are located on opposite sides of the housing 10. Therefore, the air inlet 12 will not repeatedly draw in the hot air discharged from the housing 10, avoiding short-circuiting of the cooling air. At the same time, the air inlet 12 is connected to the end of the foremost chamber 30 in the airflow direction. Outside cold air enters the end of the foremost chamber 30 in the airflow direction through the air inlet 12 and flows to the air guide hole 111 in the middle of the chamber 30 to enter the next chamber 30.

[0039] Example 2

[0040] The difference between this embodiment and embodiment 1 is that there are two exhaust holes 13, which are located on the front 14 and back 15 of the housing 10, respectively. This can increase the total opening area of ​​the exhaust holes 13 and improve the heat dissipation efficiency.

[0041] Example 3

[0042] The difference between this embodiment and Embodiment 1 is that if the projected length of the elongated air guide hole 111 on the heat dissipation surface 20 is too long, the main airflow cannot be concentrated in the middle of the chamber 30. Conversely, if the projected length of the air guide hole 111 on the heat dissipation surface 20 is too short, the chamber 30 further back in the airflow direction will not receive sufficient airflow, affecting heat dissipation efficiency. In this embodiment, in the airflow direction, the projected length of the subsequent air guide hole 111 on the heat dissipation surface 20 is 1.1 to 1.2 times that of the preceding air guide hole 111, ensuring that the main airflow is concentrated in the middle of the chamber 30 and that each chamber 30 has sufficient airflow velocity.

[0043] The housing 10 has a cuboid structure, and the heat dissipation surface 20 is preferably rectangular. In the airflow direction, the projected length of the first air guide hole 111 on the heat dissipation surface 20 is 5% to 15% of the length of the heat dissipation surface 20. The number of baffles 11 satisfies: N = H / 2, where N is the number of baffles 11 (rounded down), and H is the width of the heat dissipation surface 20. For example, if the width of the heat dissipation surface 20 is 10m, then there are 5 baffles 11. The more baffles 11 there are, the higher the cost and the more difficult the installation; conversely, the fewer baffles 11 there are, the worse the airflow guiding effect. Using the above calculation method, the number of baffles 11 can be flexibly adjusted according to actual heat dissipation needs and cost budget, ensuring a balance between heat dissipation effect and cost control.

[0044] Example 4

[0045] This embodiment discloses a display device, including a display module 40 and a heat dissipation structure as described above. The display module 40 is connected to a housing 10. A portion of the display module 40 is located inside the housing 10 and has a heat dissipation surface 20. One side of the partition 11 of the housing 10 abuts against the heat dissipation surface 20 of the display module 40, dividing the housing 10 into multiple chambers 30. A cooling fan is provided at the exhaust port 13, so that airflow enters the housing 10 through the air inlet 12 and exits through the exhaust port 13.

[0046] In summary, the housing 10 has a heat dissipation surface 20, which transfers heat to the air in contact with it. Multiple chambers 30 inside the housing 10 are arranged on the heat dissipation surface 20 and are connected sequentially along the airflow direction. This allows the airflow to flow through each chamber 30 sequentially and absorb heat from various parts of the heat dissipation surface 20. The projection of the airflow on the heat dissipation surface 20 is gradually expanding, and the airflow will gradually diffuse into the entire interior of the housing 10, providing efficient heat dissipation for the heat dissipation surface 20. This can significantly reduce the number of cooling fans, improve heat dissipation efficiency, and reduce the overall power consumption and noise of the machine.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat dissipating structure, characterized by comprising: The shell comprises: a plurality of chambers arranged on the heat dissipation surface and communicated in sequence along the airflow direction; the projection of the airflow on the heat dissipation surface is gradually expanded.

2. The heat dissipating structure according to claim 1, wherein A plurality of partitions are arranged in the shell, and the plurality of partitions separate the interior of the shell into a plurality of chambers, and a plurality of air guide holes are arranged on the partitions; an air inlet hole and an air outlet hole are arranged on the shell, and the airflow enters the shell through the air inlet hole and is discharged through the air outlet hole.

3. The heat dissipating structure according to claim 2, wherein The plurality of air guide holes are parallel to each other and arranged in axial symmetry.

4. The heat dissipating structure according to claim 2, wherein The air guide holes are long strip-shaped.

5. The heat dissipating structure according to claim 2, wherein The shell has a front surface and a back surface, and the air outlet hole is arranged on the front surface and / or the back surface.

6. The heat dissipating structure according to claim 5, wherein The air inlet hole is arranged on the front surface.

7. The heat dissipating structure according to claim 2, wherein In the airflow direction, the projection length of the projection of the latter air guide hole on the heat dissipation surface is 1.1-1.2 times the projection length of the projection of the former air guide hole on the heat dissipation surface.

8. The heat dissipating structure according to claim 7, wherein In the airflow direction, the projection length of the projection of the first air guide hole on the heat dissipation surface is 5%-15% of the length of the heat dissipation surface.

9. The heat dissipating structure according to claim 2, wherein The number of the partitions satisfies: N=H / 2 wherein N is the number of the partitions, and H is the width of the heat dissipation surface.

10. A display device, characterized by comprising: The display module is connected to the shell, and a part of the display module is arranged in the shell and has a heat dissipation surface.

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