A waterproof sealing device for an aircraft power amplifier

Abstract

The application relates to a waterproof sealing device for an aircraft power amplifier and belongs to the technical field of waterproof sealing of aircraft power amplifiers. The device comprises a support plate, a driving mechanism, a cover plate, a limiting mechanism and a detection mechanism. The support plate is provided with a plurality of first through holes. The driving mechanism comprises a driving piece, a screw rod part and an optical shaft part. The optical shaft part penetrates through the support plate and is rotationally connected to the support plate. The other end of the optical shaft part is transmissionally connected to the driving piece. The cover plate is arranged on the side of the support plate away from the cavity and is screwed to the other end of the screw rod part. The driving mechanism drives the cover plate to move, so that the distance between the cover plate and the support plate can be adjusted. The cover plate is provided with a protrusion. The two limiting pieces of the limiting mechanism are arranged on the shell and are used for limiting the circumferential position of the protrusion, so that after the cover plate is rotated by a preset angle, the cover plate moves linearly towards the support plate. The detection mechanism is arranged on the shell and is used for detecting whether water exists. The detection mechanism is electrically connected to the driving mechanism. The application has the effects of considering the waterproofness and heat dissipation of the aircraft power amplifier.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproof sealing of aircraft power amplifier, and particularly relates to a waterproof sealing device for aircraft power amplifier. BACKGROUND

[0002] An unmanned aircraft (referred to as "drone") and other aircraft are usually composed of a fuselage, a wing, a power module, a control module and other parts, and the parts need to work closely together to ensure the stability and safety of flight. With the increasing application of unmanned aircraft and other aircraft in military and civilian fields, especially the increasing demand for operation in complex and variable natural environments, higher requirements are put forward for the waterproofness of power amplifier and other electronic components inside the aircraft.

[0003] At present, the common solutions in the prior art include various methods; one is to use waterproof tape or sealing rubber ring, which is simple and easy to implement and can quickly achieve basic waterproof effect; the other is to design a special overall closed waterproof shell, which usually has a high protection level and can provide reliable protection in a harsh environment.

[0004] However, the waterproof tape or sealing rubber ring is prone to aging and failure after long-term use, resulting in a decline in waterproof effect; the overall waterproof shell has good protection performance, but it affects the heat dissipation effect of the power amplifier and other electronic components.

[0005] In the above related technology, there is a defect that the heat dissipation effect of the power amplifier cannot be guaranteed while achieving the waterproofness of the aircraft power amplifier. SUMMARY

[0006] In order to achieve the waterproofness of the aircraft power amplifier while guaranteeing the heat dissipation effect of the power amplifier, the present application provides a waterproof sealing device for aircraft power amplifier.

[0007] The waterproof sealing device for aircraft power amplifier provided by the present application adopts the following technical solution:

[0008] The utility model provides a waterproof sealing device for aircraft power amplifier, is located in the shell of aircraft, the shell includes upper casing and lower casing, the upper casing is assembled and is connected in the upper of lower casing, makes the cavity in the shell, the cavity is equipped with control module, the control module includes power amplifier, the upper casing is equipped with mounting hole, the waterproof sealing device for aircraft power amplifier includes: support plate, the support plate is used for blocking the mounting hole, the support plate is equipped with a plurality of first through -hole, drive mechanism, drive mechanism includes driving piece and screw rod assembly, screw rod assembly includes the screw rod part and optical axis part of end connection and axis coincidence, the optical axis part passes through the support plate and is rotationally connected with it, the other end of optical axis part is transmission connection driving piece, driving piece is equipped in the cavity, cover plate, the cover plate is equipped with the side away from the cavity of support plate, the other end of screw rod part is screwed with cover plate, driving piece drives the movement of cover plate, and the distance between cover plate and support plate can be adjusted, the cover plate is equipped with lug, limiting mechanism, limiting mechanism includes two limiters, two limiters are all equipped on the shell, two limiters are arranged at intervals, the limiter can abut against the lug, two limiters are used for limiting the circumferential position of lug, so that when the screw rod assembly rotates, the cover plate moves linearly to the direction close to the support plate after rotating the preset angle, detection mechanism, detection mechanism is equipped on the shell, detection mechanism is used for detecting whether there is water, detection mechanism is electrically connected with driving mechanism, when detection mechanism does not detect water, the cover plate and the support plate keep interval arrangement, when detection mechanism detects water, driving mechanism starts, the cover plate moves to the direction close to the support plate, and the cover plate is equipped and is attached to the support plate.

[0009] Through the above technical scheme, when it is not raining, the distance between the cover plate and the support plate is large, which helps the heat in the cavity to be dissipated through the first through -hole, ensuring the heat dissipation effect, when the detection mechanism detects the presence of water, the driving mechanism starts, and the driving piece drives the screw rod assembly to rotate, because the screw rod part and the optical axis part are end -connected and the axes coincide, the optical axis part passes through the support plate and is rotationally connected with it, so the rotation of the screw rod part will drive the cover plate to rotate, which helps to shake off the rainwater on the cover plate and reduces the risk of raindrops on the cover plate directly falling on the support plate, at the same time, the two limiters of the limiting mechanism can limit the circumferential position of the cover plate through the lug, so that the cover plate moves linearly along the axis direction of the screw rod part after rotating a certain angle, thereby moving to the direction close to the support plate, and finally the cover plate is equipped on the support plate, thereby blocking the first through -hole through the cover plate, realizing the sealing of the mounting hole, effectively preventing water from entering, which can ensure the stable performance of the power amplifier in the rainy environment and prolong the service life.

[0010] Optionally, the cover plate is provided with a plurality of second through holes, the second through holes are arranged correspondingly with the first through holes, the second through holes can be arranged in alignment or misalignment with the first through holes, when the distance between the cover plate and the support plate is the maximum distance, the second through holes are arranged in alignment with the first through holes, when the distance between the cover plate and the support plate is the minimum distance, the second through holes are arranged in misalignment with the first through holes, the distance between the cover plate and the support plate ranges between the minimum distance and the maximum distance.

[0011] By adopting the above technical scheme, the second through holes on the cover plate and the first through holes on the support plate can be arranged in alignment or misalignment, so that the state of the through holes can be flexibly adjusted under different conditions; when the distance between the cover plate and the support plate is the maximum distance, the second through holes are arranged in alignment with the first through holes, ensuring air circulation and helping heat dissipation; when the distance between the cover plate and the support plate is the minimum distance, the second through holes are arranged in misalignment with the first through holes, closing the first through holes and preventing moisture from entering, reducing the risk of moisture damage to the power amplifier in the cavity, and improving the adaptability and reliability of the equipment.

[0012] Optionally, the shell is provided with a plurality of first water guide grooves, a second water guide groove is arranged between adjacent two second through holes, the second water guide groove is arranged correspondingly with the first water guide groove, and when the distance between the cover plate and the support plate is the minimum distance, the second water guide groove is arranged in alignment with the first water guide groove.

[0013] By adopting the above technical scheme, when the distance between the cover plate and the support plate is the minimum distance, the second water guide groove is arranged in alignment with the first water guide groove, thereby forming an effective drainage path, so that the moisture on the surface of the shell can be quickly drained, avoiding damage to the power amplifier caused by water accumulation in the shell, and further improving the waterproof performance of the power amplifier; at the same time, this design enables the equipment to quickly recover to a dry state when encountering rain or other liquids, ensuring stable operation of the aircraft in extreme environments.

[0014] Optionally, the cover plate is provided with a rim portion, the rim portion extends from the cover plate to the cavity, and the rim portion is arranged circumferentially on the cover plate; when the distance between the cover plate and the support plate is the minimum distance, the rim portion is arranged around the outer periphery of the support plate.

[0015] By adopting the above technical scheme, when the distance between the cover plate and the support plate is the minimum distance, the rim portion on the cover plate can be closely arranged around the outer periphery of the support plate, thereby forming an effective sealing structure and further improving the waterproof performance; at the same time, this design can also form a stable mechanical connection between the cover plate and the support plate, enhancing the overall structural strength of the equipment and ensuring stability and reliability in extreme environments.

[0016] Optionally, a plurality of heat dissipation channels are arranged on one side of the support plate close to the cavity, the heat dissipation channels are arranged corresponding to the first through holes, one end of the heat dissipation channel communicates with the first through hole, the second end of the heat dissipation channel extends into the cavity and extends towards the power amplifier, a fan is arranged in the cavity, the fan is used for dissipating heat of the control module, the second end of the heat dissipation channel is arranged on one side of the fan, the fan can blow air to the heat dissipation channel, the diameter of the heat dissipation channel gradually changes, and the diameter of the second end of the heat dissipation channel is greater than the diameter of the first end of the heat dissipation channel.

[0017] By adopting the above technical scheme, the second end of the heat dissipation channel is located on one side of the fan, the fan can directly blow air to the heat dissipation channel, the diameter of the heat dissipation channel gradually changes, so that the airflow can accelerate when passing through the heat dissipation channel, thereby improving the heat dissipation efficiency and effectively reducing the temperature of the power amplifier during operation. This design not only solves the problem of poor heat dissipation in traditional protection measures, but also realizes efficient heat management without affecting the waterproof performance, thereby ensuring the stable operation of the power amplifier.

[0018] Optionally, a cutoff plate is further arranged, the cutoff plate is connected to the optical axis part, the cutoff plate is provided with a plurality of third through holes, the third through holes are used for cooperating with the heat dissipation channels, the heat dissipation channels include first segments and second segments arranged at intervals, the third through holes are used for connecting the first segments and the second segments, and the optical axis part drives the cutoff plate to rotate, so that the third through holes can selectively connect or disconnect the heat dissipation channels.

[0019] By adopting the above technical scheme, the optical axis part drives the cutoff plate to rotate, the third through holes can selectively connect or disconnect the heat dissipation channels, thereby realizing accurate control of the heat dissipation process. The cutoff plate can be used to connect the heat dissipation channels when heat dissipation is needed, thereby ensuring reliable realization of the heat dissipation effect. In rainy days, the heat dissipation channels can be quickly cut off to prevent water from entering the cavity, thereby further improving the waterproof effect of the power amplifier and improving the safety of the aircraft in use.

[0020] Optionally, a third water guide groove is arranged between two adjacent third through holes, when the third through holes are arranged in a staggered manner with the heat dissipation channels, the first end of the third water guide groove is arranged at intervals with the heat dissipation channels, and the second end of the third water guide groove extends away from the heat dissipation channels.

[0021] By adopting the above technical scheme, when the third through holes are arranged in a staggered manner with the heat dissipation channels, the first end of the third water guide groove is arranged at intervals with the heat dissipation channels, thereby ensuring effective isolation of the heat dissipation channels. When water in the heat dissipation channels accumulates too much and overflows along the cutoff plate, the third water guide groove can guide the water to move away from the screw assembly along the third water guide groove, thereby reducing the risk of water accumulation and immersion in the heat dissipation channels and further contact with the power amplifier.

[0022] Optionally, the cavity is provided with a containing cavity, the fan and the control module are arranged in the containing cavity, a guide enclosure is arranged on the outer periphery of the containing cavity, the middle part of the guide enclosure is connected to the containing cavity, the two ends of the guide enclosure extend away from the containing cavity, the diameter of the two ends of the guide enclosure is smaller than the diameter of the middle part of the guide enclosure, and the diameter of the cutoff plate is greater than the diameter of the two ends of the guide enclosure.

[0023] By adopting the above technical scheme, the fan and the control module are arranged in the containing cavity, and the special design of the guide enclosure causes vortex effect of air when the air passes through the guide enclosure, promotes rapid heat dissipation, can more effectively guide air flow, and enhances heat dissipation efficiency; the diameter of the cutoff plate is greater than the diameter of the two ends of the guide enclosure, which can reduce the possibility of rain entering the guide enclosure after separating from the cutoff plate, which helps to reduce damage to the power amplifier caused by water and prolong the service life.

[0024] Optionally, the first end of the heat dissipation channel is provided with a water stop strip and a waterproof air permeable film, the waterproof air permeable film is arranged in the end part of the first end of the heat dissipation channel, the water stop strip is arranged between the end part of the first end of the heat dissipation channel and the waterproof air permeable film, the waterproof air permeable film is used to prevent water from flowing to the second end of the heat dissipation channel, the lower end of the water stop strip abuts against the waterproof air permeable film, the water stop strip expands when encountering water, and the water stop strip can block the first end of the heat dissipation channel.

[0025] By adopting the above technical scheme, the waterproof performance of the aircraft power amplifier in an extreme environment is significantly improved, and the specific performance is that the waterproof air permeable film can allow air to flow, guarantee that the heat dissipation effect is not affected, and effectively prevent water from flowing to the second end of the heat dissipation channel after rain accidentally enters the first through hole in rainy days; and the design of the water stop strip causes the water stop strip to rapidly expand and block the first end of the heat dissipation channel when encountering water, thereby preventing water from continuing to enter, further enhancing the waterproof performance, and thereby improving the reliability and safety of the power amplifier in use.

[0026] Optionally, the water stop strip is arranged around the inner peripheral wall of the heat dissipation channel, the water stop strip is arranged into an air hole channel, the diameter of the air hole channel gradually changes, the diameter of one end of the air hole channel close to the waterproof air permeable film is greater than the diameter of the other end of the air hole channel away from the waterproof air permeable film, so as to accelerate the gas flow rate, and the first through hole can blow out water.

[0027] By adopting the technical scheme, the waterstop is arranged on the inner circumferential wall of the heat dissipation channel to form the air passage, the diameter of the air passage is gradually changed, the diameter near one end of the waterproof and breathable membrane is greater than the diameter far from the one end of the waterproof and breathable membrane, the structure can accelerate the gas flow rate, so that the rainwater about to enter the heat dissipation channel is blown out through the first through hole, and the waterproof effect of the power amplifier in rainy days is improved.

[0028] To sum up, the present application has at least one of the following beneficial technical effects:

[0029] 1. When it is not raining, the distance between the cover plate and the support plate is large, which helps the heat in the cavity to be dissipated through the first through hole, ensuring the heat dissipation effect; when the detection mechanism detects the presence of water, the driving mechanism is started, the driving part drives the screw rod assembly to rotate, since the end of the screw rod part and the optical shaft part is connected and the axis lines coincide, the optical shaft part passes through the support plate and is rotationally connected therewith, so the rotation of the screw rod part drives the cover plate to rotate, which helps to shake off the rainwater on the cover plate and reduces the risk of raindrops on the cover plate directly falling on the support plate; at the same time, the two limiting pieces of the limiting mechanism can limit the circumferential position of the cover plate through the protruding blocks, so that after the cover plate rotates by a certain angle, it moves linearly along the axis line of the screw rod part with the rotation of the screw rod part, thereby moving towards the support plate, and finally the cover plate is arranged on the support plate, so that the first through hole is blocked by the cover plate, the mounting hole is sealed, and water intrusion is effectively prevented; this process can ensure the stability of the power amplifier in rainy environment and prolong the service life;

[0030] 2. The second through hole on the cover plate and the first through hole on the support plate can be aligned or misaligned, so that the state of the through hole can be flexibly adjusted under different conditions; when the distance between the cover plate and the support plate is the maximum distance, the second through hole is aligned with the first through hole, ensuring air circulation and helping heat dissipation; when the distance between the cover plate and the support plate is the minimum distance, the second through hole is misaligned with the first through hole, the first through hole is closed, water intrusion is prevented, the risk of moisture damage to the power amplifier in the cavity is reduced, and the adaptability and reliability of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic view of the waterproof sealing device for the power amplifier of the aircraft of the embodiment of the present application cooperating with the aircraft.

[0032] Figure 2 is a top view of the waterproof sealing device for the power amplifier of the aircraft of the embodiment of the present application cooperating with the aircraft.

[0033] Figure 3 is Figure 2 the cross-sectional view at A-A in

[0034] Figure 4 is Figure 3 the enlarged view at B in

[0035] Figure 5 Figure 1 is a schematic view of the cooperation of the cover plate, the support plate and the cutoff plate according to an embodiment of the present application.

[0036] Legend of reference signs:

[0037] 100, aircraft; 110, upper housing; 120, lower housing; 130, control module; 140, mounting hole; 150, first water guide groove; 160, fan; 170, accommodating cavity; 1, support plate; 11, first through hole; 12, heat dissipation channel; 121, first section; 122, second section; 13, water stop; 14, waterproof and breathable membrane; 15, air vent; 2, driving mechanism; 21, driving piece; 22, lead screw assembly; 221, lead screw part; 222, optical axis part; 3, cover plate; 31, protrusion; 32, second through hole; 33, second water guide groove; 34, edge part; 4, limiting mechanism; 41, limiting piece; 5, detection mechanism; 6, cutoff plate; 61, third through hole; 62, third water guide groove; 7, guide fence. DETAILED DESCRIPTION

[0038] The above description is made in conjunction with the accompanying drawings. Figure 1 - the accompanying drawings Figure 5 The present application is described in further detail. In the present embodiment, unless explicitly specified, “connection”, “connection” and “fixing” are understood in a broad sense, including fixed connection, detachable connection, connection forming an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through intermediaries, internal connection and interaction between two elements, which can be understood according to the specific circumstances.

[0039] In the present application, unless explicitly specified and limited, the first feature is “on” or “under” the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, in the description of the present embodiment, the terms “up”, “down”, “left”, “right” and other orientation or position relationships shown in the drawings are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless stated to the contrary, the orientation words used in the present application, such as “inner” and “outer”, refer to the contour of the corresponding parts.

[0040] As Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the present application discloses a waterproof sealing device (hereinafter referred to as "device") for the power amplifier of an aircraft. The device is connected to the shell of the aircraft 100, the shell includes an upper shell 110 and a lower shell 120, the upper shell 110 is assembled and connected above the lower shell 120, so that a cavity is formed in the shell. The cavity is provided with a control module 130, the control module 130 includes a power amplifier, and the upper shell 110 is provided with a mounting hole 140. The device includes a support plate 1, a driving mechanism 2, a cover plate 3, a limiting mechanism 4 and a detection mechanism 5, which is used to reduce the influence of rain and other liquids on the power amplifier in the aircraft 100.

[0041] As shown in Figure 1 , Figure 3 and Figure 4 , the support plate 1 is used to block the mounting hole 140, and a sealing strip can be arranged on the inner periphery of the mounting hole 140 to improve the sealing performance. The support plate 1 is provided with a plurality of first through holes 11 for heat dissipation of the power amplifier in the cavity.

[0042] The driving mechanism 2 includes a driving member 21 and a lead screw assembly 22, and the lead screw assembly 22 includes a lead screw part 221 and an optical axis part 222 which are connected at the ends and have coincident axes. The optical axis part 222 is arranged in the support plate 1, and the optical axis part 222 is rotationally connected to the support plate 1. One end of the optical axis part 222 away from the lead screw part 221 is drivingly connected to the driving member 21, and the driving member 21 is arranged in the cavity and drives the lead screw assembly 22 to rotate. The parameters such as pitch and length of the lead screw part 221 are set as required; the driving member 21 can be a motor, and the type of motor capable of realizing forward and reverse rotation can be selected as required.

[0043] As shown in Figure 1 , Figure 3 and Figure 4 , the cover plate 3 is arranged on the side of the support plate 1 away from the cavity, and the cover plate 3 is screwed to one end of the lead screw part 221 away from the optical axis part 222. The driving mechanism 2 drives the cover plate 3 to move through the lead screw assembly 22, so that the vertical distance between the cover plate 3 and the support plate 1 is adjustable. The limiting mechanism 4 includes two limiting members 41, and the two limiting members 41 can be columnar structures. The two limiting members 41 are arranged on the shell, and the two limiting members 41 are arranged at intervals. The cover plate 3 is provided with a protrusion 31, and the limiting members 41 can abut against the protrusion 31. The two limiting members 41 are used to limit the circumferential position of the protrusion 31, so that when the lead screw assembly 22 rotates, the cover plate 3 stops rotating after rotating by a preset angle under the block of the limiting members 41, thereby enabling the cover plate 3 to move linearly in the direction close to the support plate 1 during the continuous rotation of the lead screw assembly 22, and thereby realizing the distance adjustment between the cover plate 3 and the support plate 1. The distance between the two limiting members 41 can be used to limit the rotation angle of the cover plate 3, and the size of the preset angle of the rotation of the cover plate 3 is set as required.

[0044] As shown in Figure 1 , Figure 3And Figure 4 As shown, the detection mechanism 5 is arranged on the shell, and the detection mechanism 5 is used for detecting whether there is water. The detection mechanism 5 is electrically connected with the driving mechanism 2. When the detection mechanism 5 does not detect water, the cover plate 3 and the support plate 1 are in an initial state of being arranged at a distance. When the detection mechanism 5 detects water, the driving mechanism 2 is started, the cover plate 3 moves towards the support plate 1, and the cover plate 3 is arranged to be attached to the support plate 1, so as to block the first through hole 11 and improve the waterproof sealing performance. The detection mechanism 5 includes a plurality of sensors distributed on the surface of the shell. The sensors are used to detect whether there is water. The existing types can be selected, such as a raindrop sensor.

[0045] When it is not raining, the distance between the cover plate 3 and the support plate 1 is large, which helps to dissipate heat in the cavity through the first through hole 11, and ensures the heat dissipation effect. When the detection mechanism 5 detects the presence of water, the driving mechanism 2 is started, the driving part 21 drives the screw rod assembly 22 to rotate, and the rotation of the screw rod part 221 drives the cover plate 3 to rotate, which helps to shake off the rainwater on the cover plate 3 and reduces the risk of raindrops on the cover plate 3 directly falling on the support plate 1. At the same time, the two limiting parts 41 of the limiting mechanism 4 can limit the circumferential position of the cover plate 3 through the protruding block 31, so that the cover plate 3 cannot continue to rotate after rotating a certain angle. Under the action of the continued rotation of the screw rod part 221, the cover plate 3 moves linearly along the axis direction of the screw rod part 221, so as to move towards the support plate 1, and finally the cover plate 3 is arranged on the support plate 1, so as to block the first through hole 11 through the cover plate 3, realize the sealing of the mounting hole 140, and effectively prevent water from entering. This process can ensure the stability of the aircraft 100 in rainy environment and prolong the service life. The initial state of the device is that the cover plate 3 is arranged at a distance from the support plate 1, which is suitable for sunny days. After it rains, the driving mechanism 2 drives the cover plate 3 to be attached to the support plate 1, realizes the closure of the first through hole 11, and reduces the risk of rainwater entering the cavity through the first through hole 11. At this time, the fan 160 is stopped, and the low temperature of the external environment is relied on to ensure the heat dissipation effect. When the aircraft 100 needs to be used again, the device is reset to the initial state by manual reset, and the driving mechanism 2 is reversed to arrange the cover plate 3 at a distance from the support plate 1.

[0046] As Figure 1 , Figure 3 and Figure 4As shown, the cover plate 3 is optionally provided with a plurality of second through holes 32, which are arranged correspondingly to the first through holes 11, so that the second through holes 32 can be aligned with or misaligned with the first through holes 11. The distance between the cover plate 3 and the support plate 1 is within a range between a minimum distance and a maximum distance. When the distance between the cover plate 3 and the support plate 1 is the maximum distance, i.e. in the initial state, the second through holes 32 are aligned with the first through holes 11. When the distance between the cover plate 3 and the support plate 1 is the minimum distance, i.e. when the cover plate 3 is attached to the upper surface of the support plate 1, the second through holes 32 are misaligned with the first through holes 11. The second through holes 32 on the cover plate 3 and the first through holes 11 on the support plate 1 can be aligned or misaligned, so that the state of the through holes can be adjusted flexibly in different situations. When the distance between the cover plate 3 and the support plate 1 is the maximum distance, the second through holes 32 are aligned with the first through holes 11, ensuring air circulation and helping to dissipate heat. When the distance between the cover plate 3 and the support plate 1 is the minimum distance, the second through holes 32 are misaligned with the first through holes 11, closing the first through holes 11 and preventing moisture from entering, reducing the risk of moisture damage to the power amplifier in the cavity, and improving the adaptability and reliability of the device.

[0047] Optionally, the cover plate 3 is provided with a rim 34 extending in the direction of the cavity from the cover plate 3, and the rim 34 is arranged circumferentially on the cover plate 3. When the distance between the cover plate 3 and the support plate 1 is the minimum distance, the rim 34 on the cover plate 3 can be closely surrounded by the outer periphery of the support plate 1, thereby forming an effective sealing structure and further improving the waterproof performance. At the same time, this design can also form a stable mechanical connection between the cover plate 3 and the support plate 1, enhancing the overall structural strength of the device and ensuring the stability and reliability of the aircraft 100 in rainy weather.

[0048] As shown in Figure 1 , Figure 2 and Figure 3 , the shell is optionally provided with a plurality of first water guide grooves 150, and a second water guide groove 33 is arranged between any two adjacent second through holes 32, and the second water guide groove 33 is arranged correspondingly to the first water guide groove 150. When the distance between the cover plate 3 and the support plate 1 is the minimum distance, the second water guide groove 33 is aligned with the first water guide groove 150, thereby forming an effective drainage path, so that the moisture on the surface of the shell can be quickly drained, avoiding damage to the device caused by water accumulation, and further improving the waterproof performance of the device. At the same time, this design enables the device to quickly recover to a dry state when it encounters rain or other liquids, ensuring stable operation of the aircraft 100 in extreme environments.

[0049] As shown in Figure 1 , Figure 3 and Figure 4As shown, the support plate 1 is provided with a plurality of heat dissipation channels 12 on the side close to the cavity, and the heat dissipation channels 12 are arranged correspondingly to the first through holes 11. One end of the heat dissipation channel 12 is communicated with the first through hole 11, and the second end of the heat dissipation channel 12 extends into the cavity and extends towards the power amplifier. A fan 160 is arranged in the cavity, and the fan 160 is used for heat dissipation of the control module 130. The second end of the heat dissipation channel 12 is arranged on one side of the fan 160, and the fan 160 can blow air to the heat dissipation channel 12. The diameter of the heat dissipation channel 12 is gradually changed, and the diameter of the second end of the heat dissipation channel 12 is larger than the diameter of the first end of the heat dissipation channel 12, so that the airflow can accelerate when passing through the heat dissipation channel 12, thereby improving the heat dissipation efficiency and effectively reducing the temperature of the power amplifier during operation. This design not only solves the problem of poor heat dissipation in traditional protection measures, but also realizes efficient heat management without affecting the waterproof performance, thereby ensuring the stable operation of the power amplifier.

[0050] As shown in Figure 1 , Figure 3 and Figure 4 , optionally, a water stop strip 13 and a waterproof and breathable film 14 are arranged in the first end of the heat dissipation channel 12, the waterproof and breathable film 14 is arranged in the first end of the heat dissipation channel 12, and the water stop strip 13 is arranged between the end of the first end of the heat dissipation channel 12 and the waterproof and breathable film 14. The waterproof and breathable film 14 is used to prevent water from flowing to the second end of the heat dissipation channel 12, the lower end of the water stop strip 13 abuts against the waterproof and breathable film 14, the water stop strip 13 expands when encountering water, and the water stop strip 13 can block the first end of the heat dissipation channel 12. The waterproof and breathable film 14 can allow air to flow, ensuring that the heat dissipation effect is not affected; at the same time, after rainwater accidentally enters the first through hole 11 on a rainy day, the rainwater can be effectively prevented from flowing to the second end of the heat dissipation channel 12; and the design of the water stop strip 13 makes the water stop strip 13 swell rapidly and block the first end of the heat dissipation channel 12 when encountering water, preventing water from continuing to enter, thereby further enhancing the waterproof performance and improving the reliability and safety of the power amplifier. The water stop strip 13 can absorb the water on the waterproof and breathable film 14 to some extent, and help to clean the water on the waterproof and breathable film 14 while blocking the heat dissipation channel 12.

[0051] Optionally, the water stop strip 13 is arranged around the inner circumferential wall of the heat dissipation channel 12, and the water stop strip 13 is arranged as an air hole 15. The diameter of the air hole 15 is gradually changed, and the diameter of one end of the air hole 15 close to the waterproof and breathable film 14 is larger than the diameter of the other end of the air hole 15 away from the waterproof and breathable film 14, so as to improve the heat dissipation effect through the larger-diameter end, and the smaller-diameter end facilitates the flow rate at the air outlet end, so as to reduce the rainwater entering the heat dissipation channel 12. This structure can accelerate the flow rate of the gas, so as to blow the rainwater about to enter the heat dissipation channel 12 out through the first through hole 11, thereby improving the waterproof effect of the power amplifier on a rainy day.

[0052] AsFigure 1 、 Figure 3 and Figure 4 As shown in

[0053] Optionally, the cavity is provided with a containing cavity 170, and the fan 160 and the control module 130 are arranged in the containing cavity 170. The containing cavity 170 is provided with a guide coaming 7, the middle part of the guide coaming 7 is connected with the containing cavity 170 and the shell, so as to realize the supporting effect, and the two ends of the guide coaming 7 extend away from the containing cavity 170 and are matched with the heat dissipation channel 12. The diameter of the two ends of the guide coaming 7 is smaller than the diameter of the middle part of the guide coaming 7, and the diameter of the cutoff plate 6 is greater than the diameter of the two ends of the guide coaming 7. The fan 160 and the control module 130 are arranged in the containing cavity 170, and through the special design of the guide coaming 7, the vortex effect is generated when the air passes through the guide coaming 7, so as to promote the rapid dissipation of heat, and the air flow can be more effectively guided, and the heat dissipation efficiency is enhanced. The diameter of the cutoff plate 6 is greater than the diameter of the two ends of the guide coaming 7, so that the possibility of rainwater entering the guide coaming 7 after separating from the cutoff plate 6 is reduced, which helps to reduce the damage of the power amplifier caused by water and prolong the service life.

[0054] As shown in Figure 3 、 Figure 4 and Figure 5 Optionally, the third water guide groove 62 is arranged between the two adjacent third through holes 61. When the third through hole 61 is arranged in the staggered position with the heat dissipation channel 12, the first end of the third water guide groove 62 is arranged in the spaced position with the heat dissipation channel 12, so as to realize the effective blocking effect on the heat dissipation channel 12, and the second end of the third water guide groove 62 extends away from the heat dissipation channel 12. If the water in the heat dissipation channel 12 accumulates too much and overflows along the cutoff plate 6, the third water guide groove 62 can provide a guide effect for the water, so that the water can move along the third water guide groove 62 away from the lead screw assembly 22, so as to reduce the risk of water accumulation and immersion in the heat dissipation channel 12 and further contact the power amplifier.

[0055] The pitch of the screw rod part 221, the angle or the number of turns of the output end of the driving part 21 in a single rotation, the angle of misalignment of the second through hole 32 and the first through hole 11, the angle of misalignment of the third through hole 61 and the heat dissipation channel 12, and other parameters can be set as needed, so that after a single forward rotation of the driving part 21, the cover plate 3 is attached to the support plate 1, the second through hole 32 is misaligned with the first through hole 11, and the third through hole 61 is misaligned with the heat dissipation channel 12, thereby achieving effective waterproof sealing effect and reducing damage caused by rainwater entering the cavity. When it is necessary to reset to the initial state, the driving part 21 is reversed to separate the cover plate 3 and the support plate 1, align the second through hole 32 and the first through hole 11, and align the third through hole 61 and the heat dissipation channel 12, so as to achieve heat dissipation. In addition to the guide fence 7, the device can be symmetrically provided with two groups, which are respectively arranged on the upper shell 110 and the lower shell 120. Specifically, in rainy days, the devices of the upper shell 110 and the lower shell 120 are both activated for sealing, at this time, the fan 160 is stopped, and relies on rainwater to achieve heat dissipation; in sunny days, only one group of the two groups activates the fan 160 and achieves heat dissipation, and the other group serves as a backup to ensure stable heat dissipation effect; when the aircraft 100 is flying near the water surface, the device on the upper shell 110 can be used for heat dissipation, and the device on the lower shell 120 is activated for sealing. When heat dissipation is achieved through the device on the upper shell 110, after the rainwater accidentally flowing into the heat dissipation channel 12 on the upper shell 110 flows out through the third water guide groove 62 of the cutoff plate 6, the guide fence 7 helps to guide the rainwater flowing out of the cutoff plate 6, so that the rainwater can be discharged from the first through hole 11 of the lower shell 120. Since the control module 130 is centrally arranged in the cavity, and the device is arranged on both the upper shell 110 and the lower shell 120, the stability of the aircraft 100 is thus ensured.

[0056] It can be understood that the aircraft 100 includes necessary structures and modules for realizing control and other functions, which are prior art and will not be described in detail here. The device also includes necessary structures for connection, support, driving, positioning, limiting, sealing, and control, so that the device can operate normally; the shape, size, material, and number of the parts of the device can be determined as needed to achieve the corresponding functions.

[0057] The implementation principle of the waterproof sealing device for the aircraft power amplifier provided in the embodiment of the application is as follows: when it is not raining, the distance between the cover plate 3 and the support plate 1 is large, which helps to dissipate the heat in the cavity through the first through hole 11, and guarantees the heat dissipation effect; when the detection mechanism 5 detects the presence of water, the driving mechanism 2 is started, the driving part 21 drives the screw rod assembly 22 to rotate, the rotation of the screw rod part 221 drives the cover plate 3 to rotate, which helps to shake off the rainwater on the cover plate 3 and reduces the risk of the raindrops on the cover plate 3 directly falling on the support plate 1; at the same time, the two limiting parts 41 of the limiting mechanism 4 can limit the circumferential position of the cover plate 3 through the protruding blocks 31, so that the cover plate 3 moves linearly along the axis direction of the screw rod part 221 after rotating by a certain angle along with the rotation of the screw rod part 221, thereby moving towards the support plate 1, and finally the cover plate 3 is covered on the support plate 1, thereby blocking the first through hole 11 through the cover plate 3, realizing the sealing of the mounting hole 140, effectively preventing the moisture from entering, guaranteeing the stable performance of the power amplifier in the rainy environment, and prolonging the service life.

[0058] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A waterproof sealing apparatus for an aircraft power amplifier, comprising: The utility model is located the shell of aircraft (100), the shell includes upper casing (110) and lower casing (120), upper casing (110) is assembled and is connected on the upper of lower casing (120), makes the cavity in the shell, the control module (130) is equipped in the cavity, the control module (130) includes power amplifier, upper casing (110) is equipped with mounting hole (140), the waterproof sealing equipment for aircraft power amplifier includes: Supporting plate (1) is used for blocking the mounting hole (140), the supporting plate (1) is equipped with a plurality of first through hole (11); Driving mechanism (2), the driving mechanism (2) includes driving piece (21) and screw rod assembly (22), the screw rod assembly (22) includes the screw rod part (221) and the optical axis part (222) of coinciding axis connection, the optical axis part (222) is equipped in the supporting plate (1), the optical axis part (222) rotationally connects the supporting plate (1), the other end of the optical axis part (222) is drivingly connected the driving piece (21), the driving piece (21) is equipped in the cavity, Cover plate (3) is located the side of supporting plate (1) away from the cavity, the cover plate (3) is screwed the other end of screw rod part (221), the driving mechanism (2) drives the cover plate (3) movement, the distance between the cover plate (3) and the supporting plate (1) is adjustable, the cover plate (3) is equipped with lug (31), Limiting mechanism (4), the limiting mechanism (4) includes two limiters (41), two limiters (41) are all equipped on the shell, two limiters (41) are spaced apart, the limiter (41) can abut against the lug (31), two limiters (41) are used for limiting the circumferential position of lug (31), so that the cover plate (3) linearly moves to the direction close to the supporting plate (1) after rotating the preset angle when the screw rod assembly (22) rotates, Detection mechanism (5), the detection mechanism (5) is equipped in the shell, the detection mechanism (5) is used for detecting whether water exists, the detection mechanism (5) is electrically connected with the driving mechanism (2), when the detection mechanism (5) does not detect water, the cover plate (3) and the supporting plate (1) keep spaced apart; when the detection mechanism (5) detects water, the driving mechanism (2) is started, the cover plate (3) moves to the direction close to the supporting plate (1), so that the cover plate (3) is equipped and adheres to the supporting plate (1).

2. The waterproof sealing apparatus for an aircraft power amplifier of claim 1, wherein, The cover plate (3) is provided with a plurality of second through holes (32), the second through holes (32) are correspondingly arranged with the first through holes (11), the second through holes (32) can be aligned or misaligned with the first through holes (11), when the distance between the cover plate (3) and the support plate (1) is the maximum distance, the second through holes (32) are aligned with the first through holes (11), when the distance between the cover plate (3) and the support plate (1) is the minimum distance, the second through holes (32) are misaligned with the first through holes (11), the distance between the cover plate (3) and the support plate (1) ranges between the minimum distance and the maximum distance.

3. The waterproof sealing apparatus for an aircraft power amplifier of claim 2, wherein, The shell is provided with a plurality of first water guide grooves (150), a second water guide groove (33) is arranged between adjacent two second through holes (32), the second water guide groove (33) is correspondingly arranged with the first water guide groove (150), when the distance between the cover plate (3) and the support plate (1) is the minimum distance, the second water guide groove (33) is aligned with the first water guide groove (150).

4. The waterproof sealing apparatus for an aircraft power amplifier of claim 2, wherein, The cover plate (3) is provided with a rim portion (34), the rim portion (34) extends from the cover plate (3) to the cavity direction, the rim portion (34) is arranged on the circumference of the cover plate (3), when the distance between the cover plate (3) and the support plate (1) is the minimum distance, the rim portion (34) is arranged around the outer circumference of the support plate (1).

5. The water seal apparatus for an aircraft power amplifier of claim 1, wherein, The side of the support plate (1) close to the cavity is provided with a plurality of heat dissipation channels (12), the heat dissipation channels (12) are correspondingly arranged with the first through holes (11), one end of the heat dissipation channels (12) communicates with the first through holes (11), the second end of the heat dissipation channels (12) extends into the cavity and extends towards the power amplifier, a fan (160) is arranged in the cavity, the fan (160) is used for dissipating heat of the control module (130), the second end of the heat dissipation channels (12) is arranged on one side of the fan (160), the fan (160) can blow air to the heat dissipation channels (12), the diameter of the heat dissipation channels (12) is gradually changed, the diameter of the second end of the heat dissipation channels (12) is greater than the diameter of the first end of the heat dissipation channels (12).

6. The water seal apparatus for an aircraft power amplifier of claim 5, wherein, Further comprising a cutoff plate (6), the cutoff plate (6) is connected with the optical axis portion (222), the cutoff plate (6) is provided with a plurality of third through holes (61), the third through holes (61) are used for cooperating with the heat dissipation channels (12), the heat dissipation channels (12) comprise a first section (121) and a second section (122) arranged at intervals, the third through holes (61) are used for communicating the first section (121) and the second section (122), the optical axis portion (222) drives the cutoff plate (6) to rotate, so that the third through holes (61) can selectively communicate or disconnect the heat dissipation channels (12).

7. The water seal apparatus for an aircraft power amplifier of claim 6, wherein, The third water guide groove (62) is provided between two adjacent third through holes (61), and when the third through holes (61) are arranged in a staggered manner with the heat dissipation channel (12), the first end of the third water guide groove (62) is arranged in a spaced manner with the heat dissipation channel (12), and the second end of the third water guide groove (62) extends away from the heat dissipation channel (12).

8. The water seal apparatus for an aircraft power amplifier of claim 6, wherein, The cavity is provided with a containing cavity (170), the fan (160) and the control module (130) are arranged in the containing cavity (170), the containing cavity (170) is provided with a guide coaming (7), the middle part of the guide coaming (7) is connected with the containing cavity (170), the two ends of the guide coaming (7) extend away from the containing cavity (170), the diameters of the two ends of the guide coaming (7) are smaller than the diameter of the middle part of the guide coaming (7), and the diameter of the cutting plate (6) is greater than the diameter of the two ends of the guide coaming (7).

9. The water seal apparatus for an aircraft power amplifier of claim 5, wherein, The first end of the heat dissipation channel (12) is provided with a water stop strip (13) and a waterproof breathable film (14), the waterproof breathable film (14) is arranged in a spaced manner with the end of the first end of the heat dissipation channel (12), the water stop strip (13) is arranged between the end of the first end of the heat dissipation channel (12) and the waterproof breathable film (14), the waterproof breathable film (14) is used for preventing water from flowing to the second end of the heat dissipation channel (12), the lower end of the water stop strip (13) abuts against the waterproof breathable film (14), the water stop strip (13) expands when encountering water, and the water stop strip (13) can block the first end of the heat dissipation channel (12).

10. The water seal apparatus for an aircraft power amplifier of claim 9, wherein, The water stop strip (13) is arranged around the inner circumferential wall of the heat dissipation channel (12), the water stop strip (13) is arranged into an air passage (15), the diameter of the air passage (15) is gradually changed, the diameter of one end of the air passage (15) close to the waterproof breathable film (14) is greater than the diameter of the other end of the air passage (15) away from the waterproof breathable film (14), so as to accelerate the gas flow rate, and the first through hole (11) can blow out water.

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