Housing for an airborne device and airborne antenna

Abstract

This application discloses a housing and an airborne antenna for an airborne device. The housing includes a housing body and an air intake assembly. The housing body has an air intake end and an air outlet end arranged opposite each other along a first direction, and a heat dissipation channel connecting the air intake end and the air outlet end. The air intake assembly is connected to the heat dissipation channel and is arranged off-center from the center of the air intake end in a second direction; wherein, the second direction is perpendicular to the first direction. The air intake assembly includes a first air intake grille and a second air intake grille arranged at intervals along the first direction, with the first air intake grille located on the side of the second air intake grille away from the heat dissipation channel. The axial direction of the first air intake hole on the first air intake grille and the axial direction of the second air intake hole on the second air intake grille are both inclined relative to the first direction. Through the above solution, this application can reduce the airflow velocity and flow rate entering the device without significantly reducing the active heat dissipation effect and ensuring structural strength.

Description

Technical Field

[0001] This application relates to the field of airborne equipment technology, and in particular to a housing and airborne antenna for an airborne device. Background Technology

[0002] The heat dissipation and aerodynamic layout of airborne equipment are crucial to its reliability and performance. Therefore, to achieve air exchange and ventilation between the inside and outside of the cabin, air intake grilles and exhaust grilles are usually installed on the equipment casing or radome. Existing heat dissipation and aerodynamic layouts typically introduce external airflow through the holes in the air intake grille, allowing the external airflow to enter the internal flow channel, complete heat exchange, and then exit from the exhaust grille at the other end, thus forming a basic ventilation and heat dissipation loop.

[0003] However, airborne equipment typically operates at high altitudes and high speeds. Under these conditions, the external airflow velocity is high and the dynamic pressure is large. Existing air intake grilles, constrained by structural strength, manufacturing processes, and flow capacity, are often insufficient to adequately reduce the velocity entering the flow channel, resulting in high flow velocity and dynamic pressure peaks in the internal flow channel. On the other hand, to meet the active heat dissipation requirements of ground-based or low-speed operating conditions, most equipment is equipped with fans. When a fan ventilation system is superimposed under the aforementioned high dynamic pressure airflow conditions, it may cause the fan to overspeed or rotate abnormally, further leading to risks such as erosion and wear of internal structural components and heat exchangers, increased noise, and unstable flow, thereby affecting the safety and lifespan of the equipment. Summary of the Invention

[0004] The main technical problem addressed by this application is to provide a housing and airborne antenna for an airborne device that can reduce the airflow velocity and flow rate entering the device without significantly reducing the active heat dissipation effect and ensuring structural strength.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: providing a housing for an airborne device, including a housing body and an air intake assembly. The housing body has an air intake end, an air outlet end, and a heat dissipation channel connecting the air intake end and the air outlet end, which are arranged opposite to each other along a first direction. The air intake assembly is connected to the heat dissipation channel and is disposed off-center from the center of the air intake end in a second direction. The second direction is perpendicular to the first direction. The air intake assembly includes a first air intake grille and a second air intake grille spaced apart along the first direction. The first air intake grille is located on the side of the second air intake grille away from the heat dissipation channel. The axial direction of the first air intake hole on the first air intake grille and the axial direction of the second air intake hole on the second air intake grille are both inclined relative to the first direction.

[0006] The air intake assembly further includes a baffle, which is connected between the end of the first air intake grille away from the edge and the end of the second air intake grille away from the edge. The baffle, the first air intake grille and the second air intake grille together form a turbulence cavity.

[0007] In particular, along the direction from the center of the air intake end to the edge, the width of the turbulence cavity gradually decreases in the first direction.

[0008] Both the first and second air intake grilles are convex arc-shaped plate structures, and along the direction from the center of the air intake end to the edge, the first and second air intake grilles gradually approach the air outlet end.

[0009] Wherein, along the axial direction of the first air intake, the orthographic projections of the plurality of first air intakes on the second air intake grille partially overlap with the orthographic projections of the plurality of second air intakes on the second air intake grille; at least a portion of the orthographic projections of the first air intakes on the second air intake grille are located on the side of the second air intakes closer to the edge, and at least a portion of the orthographic projections of the second air intakes on the first air intake grille are located on the side of the first air intakes farther from the edge.

[0010] In this case, the orthographic projection of a portion of the first air intake hole onto the second air intake grille is located outside the orthographic projection of the heat dissipation channel onto the second air intake grille.

[0011] Wherein, the orthographic projection of the second air intake hole on the second air intake grille is located within the orthographic projection of the heat dissipation channel on the second air intake grille.

[0012] The plurality of first air inlets are arranged in parallel axial directions, and the plurality of second air inlets are arranged in parallel axial directions. The first acute angle formed between the axial direction of the first air inlet and the first direction is greater than or equal to the second acute angle formed between the axial direction of the second air inlet and the first direction.

[0013] In this case, the orthographic projection of a portion of the first air intake hole on the second air intake grille partially overlaps with the orthographic projection of a portion of the second air intake hole on the second air intake grille.

[0014] The housing body includes an air intake skirt disposed at the air intake end. The housing body also includes a first support plate and a second support plate spaced apart in the height direction. The air intake skirt is connected between the first support plate and the second support plate. The air intake skirt is integrally disposed with the first air intake grille. The air intake skirt, the first support plate and the second support plate together form the heat dissipation channel. The heat dissipation channel is provided with a plurality of air guide plates extending in a first direction. The plurality of air guide plates are spaced apart in the second direction.

[0015] Another technical solution adopted in this application is: to provide an airborne antenna, including the housing, antenna module and fan of the airborne equipment described in any of the technical solutions, wherein the antenna module is fixed on the housing body and the fan is arranged in the heat dissipation channel.

[0016] The beneficial effects of this application are as follows: Unlike the prior art, the airborne equipment housing of this application places the air intake assembly at the edge of the air intake end, and forms an angle between the first and second air intake holes and the incoming flow direction, reducing the effective projected area of ​​the air intake holes in the incoming flow direction, thereby limiting the effective airflow into the heat dissipation channel; at the same time, when the airflow enters the inclined first and second air intake holes, the obstruction of the hole walls reduces the flow velocity and the peak dynamic pressure. This application also sets the air intake assembly as a double-layer grille structure, with the first air intake grille located on the outer side and the second air intake grille located on the inner side. The external incoming flow passes through the first and second air intake grilles in sequence and is slowed down a second time by the grilles, which significantly reduces the gas flow velocity entering the heat dissipation channel, thereby reducing the damage to the fan and internal structure caused by the airflow, ensuring reliability, and reducing the noise generated by the airflow. In addition, the arrangement of this application can ensure that the active heat dissipation effect is not significantly reduced, and the overall strength of the housing is not sacrificed. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the housing of the airborne equipment of this application; Figure 2 This application is Figure 1 An explosion diagram; Figure 3 This application is Figure 1 A partial sectional view; Figure 4 This is a schematic diagram of one embodiment of the air intake airflow of this application; Figure 5 This is a schematic diagram of one embodiment of the exhaust airflow of this application; Figure 6 This is a partially enlarged schematic diagram of an embodiment of the air intake assembly of this application; Figure 7 This is a schematic diagram of the structure of an embodiment of the first air inlet and the second air inlet of this application.

[0018] Reference numerals: 10, housing; 11, housing body; 11a, air inlet; 11b, air outlet; 11c, heat dissipation channel; 111, air inlet skirt; 112, first support plate; 113, second support plate; 114, air guide plate; 115, edge baffle; 12, air inlet assembly; 121, first air inlet grille; 121a, first air inlet hole; 122, second air inlet grille; 122a, second air inlet hole; 123, baffle; 123a, turbulence chamber. Detailed Implementation

[0019] To make the objectives, technical solutions, and effects of this application clearer and more explicit, the following detailed description is provided with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] For ease of understanding, the accompanying diagram shows the mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the X-axis is called the X-direction, which is the forward and backward direction of the airborne equipment; the direction along the Y-axis is called the Y-direction, which is the width direction of the airborne equipment; and the direction along the Z-axis is called the Z-direction, which is the height direction of the airborne equipment.

[0021] See Figures 1 to 3 , Figure 1 This is a perspective view of one embodiment of the housing of the airborne equipment of this application. Figure 2 This application is Figure 1 An explosion diagram. Figure 3 This application is Figure 1 A partial cross-sectional view is provided. The airborne equipment can be a pod, external equipment, or semi-exposed equipment, such as an airborne antenna, airborne communication equipment, or airborne electronic equipment. Therefore, the housing 10 of the airborne equipment can be an airborne antenna radome, an airborne equipment enclosure / cover, etc. When the airborne equipment is in flight, it achieves passive heat dissipation by airflow entering the housing 10, while when it is stationary on the ground, it achieves active heat dissipation from the inside out by activating an internal fan.

[0022] The housing 10 includes a housing body 11 and an air intake assembly 12. The housing body 11 has an air intake end 11a, an air outlet end 11b, and a heat dissipation channel 11c connecting the air intake end 11a and the air outlet end 11b, which are arranged opposite each other along a first direction. Specifically, the length direction X of the housing body 11 is the first direction, and the width direction Y is the second direction. The first direction X and the second direction Y are perpendicular. The air intake end 11a is located at the front end of the housing body 11, and the air outlet end 11b is located at the rear end. When the aircraft is flying forward, the airflow direction (as shown in A in the figure) is from front to back. When the aircraft is flying, the airflow enters the housing body 11 from the air intake end 11a and flows inside the housing body 11 along the heat dissipation channel 11c, and finally leaves from the air outlet end 11b.

[0023] The air intake assembly 12 is connected to the heat dissipation channel 11c, and is offset from the center of the air intake end 11a in the second direction Y. Specifically, there are two sets of air intake assemblies 12, which are symmetrically arranged in the width direction Y. The air intake assemblies 12 are located at the edge of the air intake end 11a in the width direction Y, that is, at the corner near the housing body 11. The air intake assembly 12 includes a first air intake grille 121 and a second air intake grille 122 spaced apart along the first direction X. The first air intake grille 121 is a plate-like structure with multiple first air intake holes 121a, and the second air intake grille 122 can be a plate-like structure with multiple second air intake holes 122a. The shapes of the first air intake holes 121a and the second air intake holes 122a can be rectangular or circular, etc., and this application does not make specific limitations. The dimensions of the first air intake holes 121a and the second air intake holes 122a can be adaptively adjusted according to air intake requirements and space constraints, and this application does not make specific limitations. The first air intake grille 121 is located on the side of the second air intake grille 122 away from the heat dissipation channel 11c. In other words, the first air intake grille 121 is located on the outer layer, and the second air intake grille 122 is located on the inner layer. The axial direction of the first air intake hole 121a on the first air intake grille 121 and the axial direction of the second air intake hole 122a on the second air intake grille 122 are both inclined relative to the first direction X. In other words, the extending direction of the first air intake hole 121a and the extending direction of the second air intake hole 122a are both arranged at a certain angle to the incoming flow direction A, rather than being parallel.

[0024] The housing 10 of the airborne equipment in this application has the air intake assembly 12 positioned at the edge of the air intake end 11a, and the first air intake hole 121a and the second air intake hole 122a form an angle with the incoming flow direction A, reducing the effective projected area of ​​the air intake hole in the incoming flow direction A, thereby limiting the effective air intake volume entering the heat dissipation channel 11c. At the same time, when the airflow enters the inclined first air intake hole 121a and the second air intake hole 122a, the obstruction of the airflow by the hole wall can reduce the flow velocity and reduce the peak dynamic pressure. This application also sets the air intake assembly 12 as a double-layer grille structure, with the first air intake grille 121 located on the outer side and the second air intake grille 122 located on the inner side. After the external incoming flow passes through the first air intake grille 121 and the second air intake grille 122 in sequence, it achieves secondary deceleration under the obstruction of the double-layer grille, which significantly reduces the gas flow velocity entering the heat dissipation channel 11c, thereby reducing the damage of the airflow to the fan and internal structure, ensuring reliability, and reducing the noise generated by the airflow. In addition, the design of this application ensures that the effect of active heat dissipation will not be significantly reduced, and there is no need to sacrifice the overall strength of the housing 10 to avoid the connecting parts.

[0025] Specifically, see Figure 1 and combined Figure 2In some embodiments, the housing body 11 includes an air intake skirt 111 located at the air intake end 11a, extending downward along the height direction Z. The air intake skirt 111 extends outward as a whole, and its edge in the second direction Y forms an arc transition, making the curvature change of the outer surface continuous, thereby reducing the separation of the incoming flow at the edge and reducing aerodynamic drag. The housing body 11 also includes a first support plate 112 and a second support plate 113 spaced apart in the height direction Z. The air intake skirt 111 is connected between the front end of the first support plate 112 and the front end of the second support plate 113, and the air intake skirt 111 is integrally formed with the first air intake grille 121. In other words, the edge portion of the air intake skirt 111 is provided with a plurality of first air intake holes 121a to form the first air intake grille 121, and the inner side of the air intake skirt 111 is connected to the second air intake grille 122, which is directly connected to the heat dissipation channel 11c. An edge baffle 115 is provided on one side edge of the second support plate 113 near the first support plate 112. The air intake skirt 111, the first support plate 112, the second support plate 113, and the edge baffle 115 together form a heat dissipation channel 11c. Multiple air guide plates 114 extending along the first direction X are provided within the heat dissipation channel 11c. The multiple air guide plates 114 are spaced apart along the second direction Y. The ends of the edge baffles 115 are inclined to form inclined air intake channels corresponding to the second air intake holes 122a. The air guide plates 114 can be connected to the bottom of the first support plate 112 or the top of the second support plate 113. The multiple air guide plates 114 divide the heat dissipation channel 11c into multiple sub-channels arranged side-by-side along the second direction Y. The air guide plates 114 are used to guide airflow to exit the housing 10 from the outlet end 11b at the other end. In other embodiments, the first air intake grille 121 can also be separately provided from the air intake skirt 111, for example, at other locations on the housing 10.

[0026] See Figure 3In some embodiments, the air intake assembly 12 further includes a baffle 123, which is connected between the end of the first air intake grille 121 away from its edge and the end of the second air intake grille 122 away from its edge. The baffle 123, the first air intake grille 121, and the second air intake grille 122 together form a spoiler cavity 123a. Specifically, the baffle 123 is connected between the air intake skirt 111 and the end of the second air intake grille 122 near its center, and the spoiler cavity 123a formed extends in a strip shape. On the one hand, the baffle 123 can support the first air intake grille 121 and the second air intake grille 122 to ensure structural strength and structural reliability under the impact of high-speed flow. On the other hand, after the external flow passes through the first air intake grille 121 and enters the turbulence cavity 123a, part of the airflow directly passes through the second air intake hole 122a and enters the heat dissipation channel 11c. The other part of the airflow is blocked by the second air intake grille 122 and flows along the turbulence cavity 123a toward the baffle 123. Under the obstruction of the baffle 123, it further consumes energy and becomes uniform in flow rate before returning to the second air intake hole 122a and entering the heat dissipation channel 11c at a lower flow rate.

[0027] Further, see Figure 3 and Figure 4 Along the direction from the center of the air intake end 11a to the edge, the width of the turbulence cavity 123a gradually decreases in the first direction X. Specifically, the width of the turbulence cavity 123a is largest at the end near the baffle 123 and smallest at the end farther from the baffle 123. Figure 4 As shown, after the external flow enters the turbulence cavity 123a, the gas entering this area is squeezed to flow towards the wider end because the width of the turbulence cavity 123a near the edge is the smallest. That is, the turbulence cavity 123a can guide the gas to the baffle 123, ensuring that the gas can be further decelerated under the obstruction of the baffle 123.

[0028] Continue reading Figure 3 In some embodiments, both the first air intake grille 121 and the second air intake grille 122 are convex arc-shaped plate structures, and along the direction from the center of the air intake end 11a to the edge, both the first air intake grille 121 and the second air intake grille 122 gradually approach the air outlet end 11b. Specifically, both the first air intake grille 121 and the second air intake grille 122 extend along the arc-shaped curved surface in the arc transition area on both sides of the housing 10. The grille edge of the first air intake grille 121 continuously transitions with the outer contour of the air intake skirt 111, so that the first air intake grille 121 is integrally formed with the housing 10 and maintains a flush outer surface without any protruding additional structures. The arc-shaped plate structure of the first air intake grille 121 can reduce external wind resistance, and at the same time, the arc-shaped first air intake grille 121 and the second air intake grille 122 form an arc-shaped turbulence cavity 123a, which can guide gas through the air intake hole. In other embodiments, the first air intake grille 121 and / or the second air intake grille 122 can also be an inclined flat plate or a multi-faceted structure.

[0029] Optionally, please continue reading Figure 3 In some embodiments, along the axial direction of the first air intake 121a, the orthographic projections of the plurality of first air intakes 121a on the second air intake grille 122 partially overlap with the orthographic projections of the plurality of second air intakes 122a on the second air intake grille 122; at least a portion of the orthographic projections of the first air intakes 121a on the second air intake grille 122 are located on the side of the second air intakes 122a closer to the edge, and at least a portion of the orthographic projections of the second air intakes 122a on the first air intake grille 121 are located on the side of the first air intakes 121a away from the edge. In other words, the first air intakes 121a and the second air intakes 122a are partially misaligned in the extending direction of the air intake assembly 12, the plurality of first air intakes 121a are generally disposed closer to the edge of the housing 10 relative to the plurality of second air intakes 122a, and one or more first air intakes 121a in the portion near the edge region are exposed outside the edge side of the second air intakes 122a, and one or more second air intakes 122a in the portion far from the edge region are exposed outside the center side of the second air intakes 122a.

[0030] like Figure 3 As shown by the blue arrow, the above structure, on the one hand, causes the first air inlet 121a to deviate from the frontal airflow, which can further reduce the effective windward projection area of ​​the first air inlet 121a, and further reduce the effective airflow volume and peak velocity. At the same time, since the first air inlet 121a only partially overlaps with the second air inlet 122a, only part of the airflow flowing in from the overlapping area can enter the heat dissipation channel 11c with lower resistance; the airflow entering from the first air inlet 121a near the edge area is blocked by the second air intake grille 122, which significantly reduces the flow velocity. Then, this part of the decelerated gas flows towards the center along the turbulence cavity 123a. Part of the gas directly enters the heat dissipation channel 11c at a lower speed from the second air inlet 122a, and the other part of the gas is further decelerated by the baffle 123 and then deflected back by the first air intake grille 121 to enter the heat dissipation channel 11c at an even lower speed.

[0031] On the other hand, such as Figure 4As shown by the red arrow, when the airborne equipment is stationary on the ground, because the second air intake 122a is closer to the center of the housing 10 in the second direction Y, the effective heat dissipation projection area of ​​the second air intake 122a can be guaranteed, ensuring that the heat inside the housing 10 can be smoothly discharged from the second air intake 122a. Part of the airflow flowing out from the overlapping area passes through the second air intake 122a and the first air intake 121a in sequence and is discharged directly, leaving the housing 10 with low resistance. The part of the airflow flowing out from the second air intake 122a near the center of the housing 10 is guided by the baffle 123, the first air intake grille 121, and the second air intake grille 122 and discharged from the first air intake 121a, leaving the housing 10.

[0032] Further reading Figure 3 and Figure 4 The projection of a portion of the first air intake 121a onto the second air intake grille 122 is located outside the projection of the heat dissipation channel 11c onto the second air intake grille 122. For example... Figure 4 As shown, part of the first air intake grille 121 extends beyond the heat dissipation channel 11c to ensure a smaller effective frontal area, so that some airflow entering from the edge area cannot directly enter the heat dissipation channel 11c, but must stay in the turbulence cavity 123a to slow down before entering the heat dissipation channel 11c.

[0033] Further reading Figure 3 and Figure 5 The orthographic projection of the second air intake 122a onto the second air intake grille 122 lies within the orthographic projection of the heat dissipation channel 11c onto the second air intake grille 122. For example... Figure 5 As shown, all the second air inlets 122a are directly connected to the heat dissipation channel 11c, so that all the internal airflow can directly enter the turbulence cavity 123a through the second air inlets 122a, ensuring sufficient heat dissipation airflow.

[0034] Optionally, see Figure 6In some embodiments, the first acute angle β1 formed between the axial direction C1 of the first air inlet 121a and the first direction X is greater than or equal to the second acute angle β2 formed between the axial direction C2 of the second air inlet 122a and the first direction X. Specifically, in this embodiment, the axial directions C1 of the plurality of first air inlets 121a are arranged in parallel, and the axial directions C2 of the plurality of second air inlets 122a are arranged in parallel, which facilitates processing. The arrangement of this application, on the one hand, makes the axial direction C1 of the first air inlet 121a deflected at a larger angle relative to the first direction X, further reducing the effective windward area of ​​the first air inlet 121a, reducing the air intake volume at the inlet, and on the other hand, further increasing the contact area between the incoming flow and the hole wall of the first air inlet 121a, increasing the resistance to the incoming flow, reducing the peak flow velocity, and further weakening the impact of the incoming flow on the internal structure. On the other hand, it makes the axial C2 of the second air inlet 122a deflection angle relative to the first direction X smaller, which further ensures the effective heat dissipation area of ​​the second air inlet 122a, while further reducing the contact area between the internal airflow and the hole wall of the second air inlet 122a, reducing the resistance of the heat dissipation airflow, ensuring sufficient heat dissipation, and achieving a balance between passive and active heat dissipation.

[0035] In other embodiments, the first acute angle β1 may also be the same as the second acute angle β2.

[0036] Optionally, see Figure 7 In some embodiments, the orthographic projection of a portion of the first air intake 121a onto the second air intake grille 122 partially overlaps with the orthographic projection of a portion of the second air intake 122a onto the second air intake grille 122. Taking a single first air intake 121a and a single second air intake 122a as an example... Figure 7 As shown in the shaded area S, only part of the first air inlet 121a and the second air inlet 122a overlap. They can partially overlap in the extension direction of the air intake assembly 12 or in the height direction Z, reducing the effective flow area of ​​the airflow. This causes the airflow to undergo shearing, separation and reattachment in the turbulence cavity 123a between the two layers of grilles, forming a turbulence and homogenization process, thereby further reducing the peak velocity and total pressure entering the internal flow channel.

[0037] In other embodiments, the first air inlet 121a and the second air inlet 122a may also partially or completely overlap.

[0038] Optionally, in some embodiments, a flow-blocking structure (not shown), such as a flow-rectifying mesh, perforated plate, or honeycomb structure, may be provided between the first air intake grille 121 and the second air intake grille 122 to further control the flow rate and suppress abnormal jets.

[0039] This application also provides an airborne antenna, including a housing 10 of the airborne equipment according to any of the above embodiments. The housing 10 is an antenna radome. The airborne antenna also includes an antenna module and a fan (not shown). The antenna module is fixed on the housing body 11, and the fan is disposed in the heat dissipation channel 11c. Specifically, the antenna module can be disposed on the side of the first support plate 112 away from the second support plate 113, and the fan can be disposed on the side of the second support plate 113 facing the first support plate 112.

[0040] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A housing for airborne equipment, characterized in that, include: The housing body has an air inlet end, an air outlet end and a heat dissipation channel connecting the air inlet end and the air outlet end, which are arranged opposite to each other along a first direction. An air intake assembly is connected to the heat dissipation channel, and the air intake assembly is disposed offset from the center of the air intake end in a second direction; wherein, the second direction is perpendicular to the first direction; The air intake assembly includes a first air intake grille and a second air intake grille spaced apart along the first direction. The first air intake grille is located on the side of the second air intake grille away from the heat dissipation channel. The axial direction of the first air intake hole on the first air intake grille and the axial direction of the second air intake hole on the second air intake grille are both inclined relative to the first direction.

2. The housing of the airborne equipment according to claim 1, characterized in that, The air intake assembly also includes a baffle connected between the end of the first air intake grille away from the edge and the end of the second air intake grille away from the edge, and the baffle, the first air intake grille and the second air intake grille together form a turbulence cavity.

3. The housing of the airborne equipment according to claim 2, characterized in that, Along the direction from the center of the air intake end to the edge, the width of the turbulence cavity gradually decreases in the first direction.

4. The housing of the airborne equipment according to claim 1, characterized in that, Both the first and second air intake grilles are convex arc-shaped plate structures, and along the direction from the center of the air intake end to the edge, both the first and second air intake grilles gradually approach the air outlet end.

5. The housing of the airborne equipment according to claim 1, characterized in that, Along the axial direction of the first air intake, the orthographic projections of the plurality of first air intakes on the second air intake grille partially overlap with the orthographic projections of the plurality of second air intakes on the second air intake grille; At least a portion of the first air intake hole's orthographic projection on the second air intake grille is located on the side of the second air intake hole closer to the edge, and at least a portion of the second air intake hole's orthographic projection on the first air intake grille is located on the side of the first air intake hole farther from the edge.

6. The housing of the airborne equipment according to claim 5, characterized in that, The orthogonal projection of a portion of the first air intake hole onto the second air intake grille is located outside the orthogonal projection of the heat dissipation channel onto the second air intake grille; And / or, The orthographic projection of the second air intake on the second air intake grille is located within the orthographic projection of the heat dissipation channel on the second air intake grille.

7. The housing of the airborne equipment according to claim 1, characterized in that, The first air inlets are arranged in parallel axial directions, and the second air inlets are arranged in parallel axial directions. The first acute angle formed between the axial direction of the first air inlets and the first direction is greater than or equal to the second acute angle formed between the axial direction of the second air inlets and the first direction.

8. The housing 10 of the airborne equipment according to claim 1, characterized in that, The orthographic projection of part of the first air intake on the second air intake grille overlaps with the orthographic projection of part of the second air intake on the second air intake grille.

9. The housing 10 of the airborne equipment according to claim 1, characterized in that, The housing body includes an air intake skirt disposed at the air intake end. The housing body also includes a first support plate and a second support plate spaced apart in the height direction. The air intake skirt is connected between the first support plate and the second support plate. The air intake skirt is integrally disposed with the first air intake grille. The air intake skirt, the first support plate and the second support plate together form the heat dissipation channel. The heat dissipation channel is provided with a plurality of air guide plates extending in a first direction. The plurality of air guide plates are spaced apart in the second direction.

10. An airborne antenna, characterized in that, include: The housing of the airborne equipment as described in any one of claims 1-9; Antenna module, the antenna module being fixed to the housing body; A fan is installed inside the heat dissipation channel.

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