Photoelectric pod heat dissipation air duct

Abstract

The utility model relates to a photoelectric pod heat dissipation air channel, which belongs to the technical field of photoelectric pod heat dissipation, and specifically comprises a shell, an air inlet and an air outlet are arranged at the bottom of the shell, an air inlet fan and an air outlet fan are correspondingly arranged at the air inlet and the air outlet, a flow channel is arranged in the shell, and the flow channel is communicated with the shell. A plurality of pairs of oppositely-arranged flow channel blade sets are arranged in the flow channel, each flow channel blade set comprises a first flow channel blade and a second flow channel blade, the first flow channel blades and the second flow channel blades are obliquely arranged on the inner walls of the two sides of the flow channel, and the length of the second flow channel blades is smaller than that of the first flow channel blades. The upper surface and the lower surface of the shell are connected with the upper cover plate and the bottom cover plate respectively, and the heat source is located in the middle of the space in the cabin and tightly attached to the wall face where the space in the cabin intersects with the outer surface of the shell. And the temperature of the heat source can be effectively reduced for normal use.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of a photoelectric pod, in particular to a heat dissipation air duct of a photoelectric pod. Background Art

[0002] The optoelectronic pod is a complex system that integrates a variety of optoelectronic devices and is widely used in military, aviation, security and other fields. These devices generate a lot of heat during operation, especially in a closed airtight environment, where the heat dissipation problem is particularly prominent. If the heat cannot be dissipated in a timely and effective manner, it will affect the performance and life of the equipment and may even cause failure of the entire system.

[0003] Under the airtight conditions of the optoelectronic pod, traditional heat dissipation methods such as fans and heat sinks face the dual challenges of low efficiency and damage to airtightness. Therefore, developing a new type of heat dissipation mechanism that can effectively dissipate heat and ensure the stability of the airtight environment has become a technical problem that needs to be solved urgently in this field.

[0004] In order to solve this problem, a new type of heat dissipation mechanism under airtight conditions in the optoelectronic pod is proposed. The design of this heat dissipation mechanism fully considers the special environment in the airtight cabin and achieves the goal of effectively dissipating the main heat source in the cabin without destroying the airtightness. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects existing in the prior art, thereby providing a photoelectric pod heat dissipation duct.

[0006] A heat dissipation duct for an optoelectronic pod, comprising:

[0007] A shell, wherein an air inlet and an air outlet are arranged at the bottom of the shell, an air inlet fan and an air outlet fan are arranged at the air inlet and the air outlet respectively, a flow channel is arranged in the shell, and a plurality of pairs of relatively arranged flow channel blade groups are arranged inside the flow channel, the flow channel blade group includes a first flow channel blade and a second flow channel blade, the first flow channel blade and the second flow channel blade are both obliquely arranged on the inner walls on both sides of the flow channel, the length of the second flow channel blade is smaller than the first flow channel blade, the upper and lower surfaces of the shell are respectively connected to the upper cover plate and the bottom cover plate, and the heat source is located in the middle of the cabin space and is close to the wall where the cabin space and the outer surface of the shell intersect.

[0008] Furthermore, the second flow channel blades are parallel to the first flow channel blades.

[0009] Furthermore, the inclination angles of the first flow channel blade and the second flow channel blade in the flow channel are 30° to 60°.

[0010] Furthermore, the shell is a fan-shaped shell, and the flow channel is n-shaped.

[0011] Furthermore, the radius of the shell is 75-300 mm.

[0012] Furthermore, a plurality of notches are provided on the upper surface of the shell, and the notches correspond to the positions of the flow channel blade groups.

[0013] Furthermore, the number of the flow channel blade groups is 28 to 56.

[0014] Furthermore, thermal conductive silicone grease is provided between the wall surface where the heat source intersects the space inside the cabin and the outer surface of the shell.

[0015] The technical solution of the utility model uses a simple structural design to make the air duct as a whole similar to the Tesla valve structure, thereby improving the heat dissipation efficiency in a limited space, being able to effectively reduce the temperature of the heat source itself and enable the heat source to be used normally. At the same time, the technical solution can achieve airtight conditions in the photoelectric pod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model when the upper cover plate is hidden;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure after being cut open from the middle of the flow channel and straightened;

[0019] Figure 3 is a stereoscopic diagram of a pair of flow channel blade groups;

[0020] Figure 4 Schematic diagram of air flow direction.

[0021] Description of reference numerals:

[0022] 1-inlet fan; 2-flow channel; 3-flow channel blade group;

[0023] 3-1-first flow channel blade; 3-2-second flow channel blade;

[0024] 4-cabin space; 5-heat source; 6-air outlet fan. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] See also Figures 1 to 4 , a heat dissipation duct of an optoelectronic pod, comprising:

[0030] The shell body is provided with an air inlet and an air outlet at the bottom of the shell body, and an air inlet fan 1 and an air outlet fan 6 are correspondingly provided at the air inlet and the air outlet, a flow channel 2 is provided in the shell body, and a plurality of pairs of relatively arranged flow channel blade groups 3 are provided inside the flow channel 2, and the flow channel blade group 3 includes a first flow channel blade 3-1 and a second flow channel blade 3-2, and the first flow channel blade 3-1 and the second flow channel blade 3-2 are both inclinedly arranged in the flow channel 2, and the left and right ends of the first flow channel blade 3-1 and the second flow channel blade 3-2 are connected to the inner wall of the flow channel 2, and the second flow channel blade 3- 2 is shorter than the first flow channel blade 3-1, and the upper and lower surfaces of the shell are connected to the upper cover plate and the bottom cover plate respectively. The heat source 5 is located in the middle of the cabin space 4 and is close to the wall where the cabin space 4 and the outer surface of the shell intersect. Due to the suction of the air inlet fan 1, the air enters the flow channel 2 from the air inlet, and is guided by multiple pairs of relatively arranged flow channel blade groups 3, so that the air can fully cover the entire heat dissipation surface, thereby improving the heat transfer efficiency. Finally, under the action of the air outlet fan 6, the air that has undergone heat exchange is discharged from the air outlet. Please refer to the air flow direction. Figure 4 .

[0031] The second flow channel blade 3 - 2 is parallel to the first flow channel blade 3 - 1 , and the first flow channel blade 3 - 1 and the second flow channel blade 3 - 2 are inclined at an angle of 30° to 60° in the flow channel 2 .

[0032] The shell is a fan-shaped shell, and the flow channel 2 is n-shaped, which makes the entire inner wall of the flow channel 2 a smooth curved surface, ensuring the continuity and uniformity of air flow and further improving the heat dissipation performance of the device.

[0033] The radius of the shell is 75-300 mm. In this embodiment, the radius of the shell is 200 mm, which can be adjusted according to actual usage requirements.

[0034] The upper surface of the shell is provided with a plurality of notches, and the notches correspond to the positions of the flow channel blades 3. The flow channel blades 3 can be quickly installed and removed by providing the notches. When a flow channel blade 3 is damaged, it can be replaced in real time.

[0035] The number of the flow channel blade group 3 is 28 to 56, and 36 are selected in this embodiment.

[0036] Thermal conductive silicone grease is arranged between the heat source 5 and the wall surface where the inner space 4 and the outer surface of the shell intersect. Thermal conductive silicone grease has good thermal conductivity and can effectively conduct heat, help the device dissipate heat, reduce temperature, and improve device performance and stability; at the same time, thermal conductive silicone grease can also fill the small gap between the heat source 5 and the inner space 4 and the outer surface of the shell, improve the efficiency of heat transfer, and avoid heat accumulation in local areas.

[0037] After the air enters the flow channel 2, most of it flows along the middle flow channel and will not flow back between the first flow channel blade 3-1 and the second flow channel blade 3-2, which conforms to the Tesla valve principle. The overall structure of the heat dissipation duct is similar to the design of the Tesla valve.

[0038] Comparison of finite element simulation results: A is a traditional smooth air duct, and B is the heat dissipation air duct of the photovoltaic pod in the utility model. The ambient temperature is 25°C, the heat source 5 has a heating power of 20W, and the air inlet fan 1 and the air outlet fan 6 are turned on. In case A, the maximum temperature of the heat source is 306K (32.85°C). In case B, the maximum temperature of the heat source is 303K (29.85°C).

[0039] The test results are as follows: the ambient temperature is 25°C, the heat source 5 has a heating power of 20W, the air inlet fan 1 and the air outlet fan 6 are not turned on, and the heat source 5 heats up for 2 hours and stabilizes at a temperature of 70°C. After the air inlet fan 1 and the air outlet fan 6 are turned on, the heat source 5 heats up for 2 hours and stabilizes at a temperature of 31°C. Through the experiment, it can be seen that the device can improve the heat dissipation efficiency, effectively reduce the temperature of the heat source 5 itself, and enable it to be used normally.

[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A heat dissipation duct for a photovoltaic pod, characterized in that: include: A shell, wherein an air inlet and an air outlet are arranged at the bottom of the shell, an air inlet fan (1) and an air outlet fan (6) are arranged at the air inlet and the air outlet respectively, a flow channel (2) is arranged inside the shell, a plurality of pairs of oppositely arranged flow channel blade groups (3) are arranged inside the flow channel (2), the flow channel blade group (3) comprises a first flow channel blade (3-1) and a second flow channel blade (3-2), the first flow channel blade (3-1) and the second flow channel blade (3-2) are both obliquely arranged on the inner walls on both sides of the flow channel (2), the second flow channel blade (3-2) is shorter than the first flow channel blade (3-1), the upper and lower surfaces of the shell are respectively connected to the upper cover plate and the bottom cover plate, and the heat source (5) is located in the middle of the cabin space (4) and is close to the wall where the cabin space (4) and the outer surface of the shell intersect.

2. The heat dissipation duct of the optoelectronic pod according to claim 1 is characterized in that: The second flow channel blade (3-2) is parallel to the first flow channel blade (3-1).

3. The heat dissipation duct of the optoelectronic pod according to claim 1 is characterized in that: The inclination angles of the first flow channel blade (3-1) and the second flow channel blade (3-2) in the flow channel (2) are 30° to 60°.

4. The heat dissipation duct of the optoelectronic pod according to claim 1 is characterized in that: The shell is a fan-shaped shell, and the flow channel (2) is n-shaped.

5. The heat dissipation duct of the optoelectronic pod according to claim 4 is characterized in that: The radius of the shell is 75-300 mm.

6. The heat dissipation duct of the optoelectronic pod according to claim 1 is characterized in that: The upper surface of the shell is provided with a plurality of notches, and the notches correspond to the positions of the flow channel blade groups (3).

7. The heat dissipation duct of the optoelectronic pod according to claim 1 is characterized in that: The number of the flow channel blade groups (3) is 28 to 56.

8. The heat dissipation duct of the optoelectronic pod according to claim 1, characterized in that: Thermally conductive silicone grease is provided between the heat source (5) and the wall surface where the space inside the cabin (4) and the outer surface of the shell intersect.

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