Wing wallboard assembly and wing

Abstract

The utility model provides a wing wallboard assembly and a wing, and relates to the technical field of aircraft wing structures. The wing wall plate assembly comprises an upper wall plate and a lower wall plate, the upper wall plate comprises an upper wall plate skin, and the upper wall plate skin is provided with a cable through hole; the lower wall plate comprises a lower wall plate skin; the upper wall plate and the lower wall plate are fixedly connected, and an installation space is formed between the upper wall plate and the lower wall plate and used for installing electric drive equipment. The lower wall plate skin is provided with a heat dissipation opening and an inlet / outlet which are communicated with the installation space and used for facilitating heat dissipation and maintenance of electric drive equipment in the wing.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft wing structure technical field especially relates to a wing wallboard subassembly and wing. BACKGROUND

[0002] The wing wallboard subassembly is an important component of the aircraft wing and is generally composed of an upper wallboard and a lower wallboard. Currently, some models of aircraft need to carry a duct fan on the upper wallboard structure of the wing and set an electric drive device corresponding to the duct fan between the upper wallboard and the lower wallboard.

[0003] However, since the duct fan and the corresponding electric drive device are added to the original wing wallboard subassembly, and the electric drive device generates high temperature when operating, the high temperature will reduce the strength of the wing wallboard subassembly, so it is necessary to cool the electric drive device while ensuring the strength of the wallboard structure, and it is also necessary to facilitate the maintenance of the electric drive device by the staff between the upper wallboard and the lower wallboard. SUMMARY

[0004] The utility model discloses a wing wallboard subassembly and wing for conveniently cooling and maintaining the electric drive device in the wing.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] On the one hand, the utility model provides a kind of wing wallboard subassembly, the wing wallboard subassembly includes upper wallboard, the upper wallboard includes upper wallboard skin, the upper wallboard skin is set with cable through hole;Lower wallboard, the lower wallboard includes lower wallboard skin, the upper wallboard and the lower wallboard are fixedly connected, and installation space is formed between the two, and the installation space is used to install electric drive device;The lower wallboard skin is set with heat dissipation port and inlet and outlet communicated with the installation space, the heat dissipation port is used for the electric drive device heat dissipation, and the inlet and outlet are used for personnel to pass through.

[0007] In some embodiments, the outer shape surface of the upper wallboard skin includes a positive curved surface structure and a reverse curved surface structure arranged in the direction from the wing leading edge to the wing trailing edge, the bending directions of the positive curved surface structure and the positive curved surface structure are opposite, and the positive curved surface structure is bent towards the lower wallboard.

[0008] In some embodiments, the thickness of the upper wallboard skin and the thickness of the lower wallboard skin decrease in a first direction; the first direction is parallel to the wing span direction of the wing and points from the wing root to the wing tip.

[0009] In some embodiments, a reinforcing ring is provided on the upper wallboard skin; the reinforcing ring is arranged at the edge of the cable through hole, and the inner hole of the reinforcing ring is arranged opposite to the cable through hole.

[0010] In some embodiments, the number of cable through holes is multiple; the multiple cable through holes are arranged along the span direction.

[0011] In some embodiments, the number of heat dissipation openings is multiple; the multiple heat dissipation openings are arranged along the span direction.

[0012] In some embodiments, the upper wall skin is provided with a longeron structure; and / or, the lower wall skin is provided with a longeron structure.

[0013] In some embodiments, in the chord direction, the end size of the longeron structure is greater than the middle part size of the longeron structure.

[0014] In some embodiments, the inlet and outlet include a maintenance opening and a maintenance gap; a maintenance opening cover is detachably connected at the maintenance opening, and the maintenance opening cover is used for plugging the maintenance opening; a maintenance cover plate is detachably connected at the maintenance gap, and the maintenance cover plate is used for plugging the maintenance gap.

[0015] In another aspect, the utility model provides a kind of wing, which includes duct fan, electric drive equipment and wing wallboard assembly described in any of the above embodiments;The duct fan is arranged at the outside of the upper wall;The electric drive equipment is arranged in the mounting space between the upper wall and the lower wall;The duct fan and the electric drive equipment are electrically connected by cable;The cable is arranged in the cable through hole.

[0016] The utility model has the advantages of:

[0017] The wing wallboard assembly provided by the utility model has the advantages that: the upper wall with upper wall skin and the lower wall with lower wall skin are arranged, so that a mounting space can be formed between the upper wall and the lower wall, and the electric drive equipment is arranged in the mounting space; meanwhile, a cable through hole is formed in the upper wall skin, which facilitates the arrangement of the cable; a heat dissipation opening and an inlet and outlet are formed in the lower wall skin and communicate with the mounting space, the heat dissipation opening can communicate the mounting space with the external environment, so that the internal space of the mounting space and the external environment can exchange gas, thereby the electric drive equipment can be cooled, and the high-temperature accumulation phenomenon between the upper wall and the lower wall is avoided, so as to affect the strength of the wallboard; the inlet and outlet can provide an access channel for the staff, so that the staff can enter the internal space of the mounting space to maintain and repair the electric drive equipment; in addition, the wallboard can be lightened by the cable through hole and the heat dissipation opening.

[0018] The wing provided by the utility model has all the characteristics of the wing wallboard assembly, and has the same advantages as the wing wallboard assembly, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure diagram of the upper wallboard provided by the embodiment of the utility model;

[0020] Figure 2 is Figure 1 is a sectional view of A-A direction in figure;

[0021] Figure 3 is Figure 2 is an enlarged view of B in figure;

[0022] Figure 4 is a structure diagram of the lower wallboard provided by the embodiment of the utility model.

[0023] In the figure:

[0024] 1, upper wallboard; 11, upper wallboard skin; 111, positive curved surface structure; 112, reverse curved surface structure; 12, cable through hole; 13, reinforcing ring;

[0025] 2, lower wallboard; 21, lower wallboard skin; 22, heat dissipation port; 23, inlet and outlet; 231, maintenance opening; 232, maintenance gap; 24, maintenance opening cover; 25, maintenance cover plate; 26, connecting piece; 27, main landing gear cabin door cutout;

[0026] 3, longeron structure; 31, connecting part; 32, supporting part;

[0027] X1, first direction; C1, first area; C2, second area; C3, third area; C4, fourth area. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0029] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them.

[0031] In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0032] As shown in Figures 1-4 The utility model provides a wing wallboard assembly. As shown in Figure 1 The upper wallboard 1 includes an upper wallboard skin 11. The upper wallboard skin 11 is in a plate structure, and the shape of the upper wallboard skin 11 is, for example, trapezoidal. Of course, the shape and size of the upper wallboard skin 11 need to be adaptively designed according to the actual load requirements and assembly requirements of the wing, which is not limited here.

[0033] As shown in Figure 4 The wing wallboard assembly further includes a lower wallboard 2, and the lower wallboard 2 includes a lower wallboard skin 21. The lower wallboard skin 21 is in a plate structure, and the shape of the lower wallboard skin 21 is the same as that of the upper wallboard skin 11, for example, trapezoidal.

[0034] It can be understood that the upper wallboard 1 and the lower wallboard 2 are fixedly connected and are both part of the wing structure. In the actual wing assembly process, the upper wallboard 1 and the lower wallboard 2 are arranged opposite to each other, and an installation space can be formed between the upper wallboard 1 and the lower wallboard 2.

[0035] The installation space is used to set an electric drive device for providing power for the duct fan. Meanwhile, the lower wallboard skin 21 is provided with a heat dissipation opening 22 and an entrance and exit 23 in communication with the installation space. The heat dissipation opening 22 is used for heat dissipation of the electric drive device, and the entrance and exit 23 is used for personnel to pass through. The opening direction of the heat dissipation opening 22 is perpendicular to the lower wallboard skin 21, and the edge of the heat dissipation opening 22 is smooth, that is, the shape of the heat dissipation opening 22 is a smooth-edged figure, for example, circular or elliptical or other figures with rounded corners (for example, a rectangle with rounded corners). When the shape of the heat dissipation opening 22 is a rectangle with rounded corners, the size of the heat dissipation opening 22 in the chord direction is 1:2 of the size of the heat dissipation opening 22 in the wingspan direction. By setting the heat dissipation opening 22 as a smooth-edged figure, stress concentration at the edge of the heat dissipation opening 22 can be avoided, thereby reducing the possibility of damage to the edge of the heat dissipation opening 22 and improving the structural strength of the lower wallboard 2. It can be understood that the inside of the installation space can be in communication with the external environment through the heat dissipation opening 22 and the entrance and exit 23.

[0036] This utility model provides a wing panel assembly. By setting an upper panel 1 with an upper panel skin 11 and a lower panel 2 with a lower panel skin 21, an installation space is formed between the upper panel 1 and the lower panel 2. This installation space is used to install electric drive equipment. Simultaneously, this application also provides cable through holes 12 on the upper panel skin 11 to facilitate cable arrangement. A heat dissipation vent 22 communicating with the installation space is provided on the lower panel skin 21. This heat dissipation vent 22 connects the installation space with the external environment, allowing gas exchange between the interior of the installation space and the external environment, thereby dissipating heat from the electric drive equipment and preventing high temperature accumulation between the upper and lower panels 2, which could affect the strength of the panel. An entrance / exit 23 provides access for personnel, facilitating maintenance and repair of the electric drive equipment within the installation space. Furthermore, the cable through holes 12 and heat dissipation vent 22 also reduce the weight of the panel.

[0037] Next, combine Figure 1 , Figure 2 The structure of the upper wall panel 1 of the wing is described in detail.

[0038] like Figure 2 As shown, the outer surface of the upper wall panel skin 11 includes a positively curved surface structure 111 and a negatively curved surface structure 112 arranged from the leading edge of the wing to the trailing edge of the wing. The positively curved surface structure 111 and the negatively curved surface structure 112 have opposite bending directions, and the positively curved surface structure bends toward the lower wall panel. A ducted fan can be installed at the negatively curved surface structure 112.

[0039] Specifically, along the chordal direction of the wing, the outer surface of the upper skin panel 11 is composed of a positively curved surface structure 111 and a negatively curved surface structure 112. The positively curved surface structure 111 is positioned near the leading edge of the wing, and the negatively curved surface structure 112 is positioned near the trailing edge. The positively curved surface structure 111 and the negatively curved surface structure 112 are connected between the leading and trailing edges of the wing. The cross-sectional shape of the positively curved surface structure 111 is a positively curved arc, with its center located on the side of the upper skin panel 11 closest to the lower skin panel 21. The cross-sectional shape of the negatively curved surface structure 112 is a negatively curved arc, with its center located on the side of the upper skin panel 11 away from the lower skin panel 21. The cross-sectional direction is perpendicular to the first direction X1 and parallel to the chordal direction of the wing. The ducted fan is located on the outer side of the upper skin panel 11 and at the location of the negatively curved surface structure 112 of the upper skin panel 11. Understandably, the location of the ducted fan on the upper panel can be adapted to the actual installation requirements. For example, the ducted fan can be installed between the anti-curvature structure 112 and the trailing edge of the wing, but it should be avoided to install it at the positive curvature structure 111 (i.e., between the anti-curvature structure 112 and the leading edge of the wing).

[0040] In the wing panel assembly, by setting the outer shape surface of the upper panel skin 11 as a positive curved surface structure 111 and a reverse curved surface structure 112, the positive curved surface structure 111 of the outer shape surface of the upper panel skin 11 can meet the aerodynamic requirements of the wing, and the reverse curved surface structure 112 can provide a mounting position for the ducted fan, so that the ducted fan is closer to the electric drive device in the wing, meets the requirement of integrated installation of the ducted fan, and avoids the influence of the ducted fan on the aerodynamic performance at the leading edge of the wing after the ducted fan is installed at the positive curved surface structure 111.

[0041] In some embodiments, the thickness of the upper panel skin 11 and the thickness of the lower panel skin 21 decrease in the first direction X1, which is parallel to the wing span direction of the wing and points from the wing root to the wing tip. Specifically, for the upper panel skin 11, two cross sections (the cross section direction is parallel to the chord direction of the wing) of the upper panel skin 11 are taken in the first direction X1, and the thickness (i.e., the size in the direction perpendicular to the upper panel skin 11) of the upper panel skin 11 at the cross section closer to the wing root is greater than the thickness of the upper panel skin 11 at the cross section farther from the wing root, with the wing root as the reference. With the wing tip as the reference, the thickness of the upper panel skin 11 at the cross section closer to the wing tip is less than the thickness of the upper panel skin 11 at the cross section farther from the wing tip. The thickness of the lower panel skin 21 is set in the same way as the thickness of the upper panel skin 11, which will not be repeated here.

[0042] In addition, the specific thickness values of the upper panel skin 11 and the lower panel skin 21 and the change rate of the thickness when the thickness decreases can be adaptively set according to the actual size and actual load of the wing panel assembly, and excessive limitations are not made here. For example, the upper panel skin 11 and the lower panel skin 21 are composed of multiple material layers, and the thickness of a single layer of material is 0.187 mm. The layer ratio and layer proportion of each angle are set according to the overall thickness and strength requirements. The layer ratio here refers to the proportion of material layers with angles of 0°, ±45°, and 90° within a certain thickness range. The layer sequence refers to the laying sequence of material layers with angles of 0°, ±45°, and 90° within a certain thickness range.

[0043] The wing panel assembly has the upper panel skin 11 and the lower panel skin 21 with thicknesses gradually decreasing in the first direction X1, so that the thickness of the wing panel at the wing root portion is greater than that at the wing tip portion, which can ensure the structural strength of the wing root portion (the shear force, torque and bending moment of the wing root portion are greater than those of the wing tip portion), and can reduce the weight of the wing panel assembly, save materials, and improve energy utilization.

[0044] In some embodiments, as shown in Figure 1 The upper panel skin 11 is provided with a cable through hole 12, which has a smooth-edged opening shape, such as a circular shape. The opening direction of the cable through hole 12 is perpendicular to the upper panel skin 11. The electric drive device and the ducted fan are connected by a cable, which passes through the cable through hole 12. Through the above arrangement, the cable connecting the electric drive device and the ducted fan can pass through the cable through hole 12, facilitating the integrated installation of the electric drive device and the ducted fan. Meanwhile, the cable through hole 12 can further reduce the weight of the upper panel 1. The circular cable through hole 12 can adapt to the outer surface of the cable, avoiding cable wear and tear and stress concentration at the cable through hole 12, which can damage the upper panel skin 11.

[0045] The number of the ducted fans and the number of the electric drive devices for providing power to the ducted fans are both multiple, and the number of the two is the same. The multiple ducted fans are respectively and correspondingly arranged with the multiple electric drive devices.

[0046] The number of the cable through holes 12 can be one or multiple. When the number of the cable through holes 12 is one, the cable for connecting the ducted fan and the electric drive device passes through the one cable through hole 12, realizing the electrical connection between the ducted fan and the electric drive device. When the number of the cable through holes is multiple, for example, 2, 3 or 5, the number of the cable through holes 12 can be adaptively arranged according to the number of the ducted fans actually installed on the outer side of the wing upper panel 1. It can be understood that when the wing upper panel 1 is actually installed with multiple ducted fans (for example, 5), the number of the cable through holes 12 provided on the upper panel 1 is the same as the number of the ducted fans (5), and the number of the electric drive devices arranged in the installation space between the upper panel 1 and the lower panel 2 is also the same as the number of the ducted fans (5). The multiple cable through holes 12 need to be respectively and correspondingly arranged with the multiple ducted fans, and the multiple electric drive devices need to be respectively and correspondingly arranged with the multiple cable through holes 12, so that the cables connected with the ducted fans can pass through the corresponding cable through holes 12 and be electrically connected with the corresponding electric drive devices. As Figure 1As shown, when there are multiple cable through holes 12, the multiple cable through holes 12 are spaced apart along the wingspan direction of the wing. That is, the multiple cable through holes 12 are spaced apart along the arrangement direction of the multiple ducted fans arranged on the outer side of the upper wall panel 1. The opening size of the cable through holes 12 and the spacing between every two adjacent cable through holes 12 can be adaptively set according to the actual structural requirements of the wing, and are not limited in detail here. Through the above arrangement, the upper wall panel 1 can meet the integrated installation requirements of multiple ducted fans, while further reducing the weight of the upper wall panel 1.

[0047] It is easy to understand that the aforementioned heat dissipation vent 22 connects the installation space between the upper wall panel 1 and the lower wall panel 2 with the external environment, enabling gas exchange between the interior and exterior of the installation space. Thus, the heat generated by the multiple electric drive devices positioned between the upper wall panel 1 and the lower wall panel 2 during operation can be exhausted to the external environment through the heat dissipation vent 22 on the lower wall panel skin 21, achieving heat dissipation for the multiple electric drive devices. The number of heat dissipation vents 22 can be one; however, to improve heat dissipation efficiency, the number of heat dissipation vents 22 can also be multiple. The following description will use "multiple heat dissipation vents 22" as an example.

[0048] In some embodiments, such as Figure 4 As shown, the lower panel skin 21 has multiple heat dissipation vents 22. The specific number of heat dissipation vents 22 can be adapted to the number of electric drive devices installed in the mounting space between the upper panel 1 and the lower panel 2. The number of heat dissipation vents 22 is set to be the same as the number of cable through holes 12 opened on the upper panel skin 11, but the sum of the lengths of all heat dissipation vents 22 in the wingspan direction is not greater than the total length of the lower panel skin 21. When there are multiple heat dissipation vents 22, the multiple heat dissipation vents 22 are spaced apart along the wingspan direction of the wing, that is, the multiple heat dissipation vents 22 are spaced apart along the arrangement direction of the multiple ducted fans installed on the outer side of the upper panel. The opening size of the heat dissipation vents 22 and the spacing between every two adjacent heat dissipation vents 22 can be adapted to the actual structural requirements of the wing, and are not limited here. Through the above settings, the lower panel 2 can meet the heat dissipation requirements of multiple electric drive devices, improve heat dissipation efficiency, and further reduce the weight of the lower panel 2.

[0049] The quantity relationship among the above-mentioned ducted fan, cable through hole 12, electric drive device and heat dissipation port 22 is not limited to the embodiment described in the utility model, and the quantity of the above-mentioned components can be adaptively set according to the actual use requirement of the wing. For example, a plurality of ducted fans are arranged on the outer side of the upper wall plate, one electric drive device is arranged between the upper wall plate 1 and the lower wall plate 2, one electric drive device is used to provide power for the plurality of ducted fans, and only one cable through hole 12 is arranged on the upper wall plate skin 11, which is used to realize that the plurality of cables electrically connected with the plurality of ducted fans and the electric drive device are arranged in the cable through hole 12, and a plurality of heat dissipation ports 22 are arranged on the lower wall plate skin 21, and the plurality of heat dissipation ports 22 simultaneously dissipate heat for the electric drive device.

[0050] In some embodiments, as shown in Figure 1 The reinforcing ring 13 is arranged on the upper wall plate skin 11 and is arranged at the edge of the cable through hole 12, and the inner hole of the reinforcing ring 13 is arranged opposite to the cable through hole 12. Specifically, the inner contour shape and the outer contour shape of the orthogonal projection of the reinforcing ring 13 on the upper wall plate skin 11 are the same as the opening shape of the cable through hole 12, for example, the reinforcing ring 13 is in a circular ring structure or a semi-circular ring structure. The reinforcing ring 13 is arranged around the cable through hole 12, and in the direction perpendicular to the upper wall plate skin 11, the center of the reinforcing ring 13 is arranged in line with the center of the opening of the cable through hole 12. In addition, the inner contour of the orthogonal projection of the reinforcing ring 13 on the upper wall plate skin 11 can at least cover the opening of the cable through hole 12. It can be understood that when the number of the cable through hole 12 is multiple, the number of the reinforcing ring 13 can also be multiple, and the plurality of reinforcing rings 13 are arranged in one-to-one correspondence with the plurality of cable through holes 12, that is, one reinforcing ring 13 is arranged at each cable through hole 12.

[0051] In the above-mentioned wing wall plate assembly, the reinforcing ring 13 arranged opposite to the cable through hole 12 on the upper wall plate skin 11 reinforces the opening of the cable through hole 12, further avoids the rupture and damage of the upper wall plate skin 11 at the opening of the cable through hole 12, and further improves the structural strength of the upper wall plate 1.

[0052] In some embodiments, the upper wall plate skin 11 is provided with a stringer structure 3, and / or the lower wall plate skin 21 is provided with a stringer structure 3. It is not difficult to understand that the arrangement of the stringer structure 3 includes the following cases: only the upper wall plate skin 11 is provided with the stringer structure 3, or only the lower wall plate skin 21 is provided with the stringer structure 3, or the upper wall plate skin 11 and the lower wall plate skin 21 are both provided with the stringer structure 3. By arranging the stringer structure 3, the wall plate can be supported and strengthened, and the structural strength of the wing wall plate assembly is further improved.

[0053] Next, combine Figure 1 , Figure 3 , Figure 4 The above-mentioned stringer structure 3 will be described in detail.

[0054] Combination Figure 1 , Figure 3 , Figure 4 As shown, the aforementioned stringer structure 3 extends along the wingspan direction of the wing. The stringer structure 3 is elongated and has a T-shaped cross-section, with the cross-section direction perpendicular to the wingspan direction. The stringer structure 3 includes a connecting portion 31 that connects to the wall panel and a supporting portion 32 that provides support, as shown... Figure 3 As shown, the support portion 32 of the stringer structure 3 is arranged perpendicular to the connecting portion 31. Simultaneously, along the chordal direction of the wing, the support portion 32 connects to the middle position of the connecting portion 31, thus forming a "T"-shaped structure. The dimensions of the connecting portion 31, the support portion 32, and the radius of the R-angle between the connecting portion 31 and the support portion 32 after their connection can be adaptively set according to the actual wing load requirements; no excessive restrictions are imposed here.

[0055] Combination Figure 1 , Figure 3 As shown, when the upper skin panel 11 is provided with a stringer structure 3, the connecting part 31 of the stringer structure 3 is connected to the side wall of the upper skin panel 11 near the lower skin panel 21. The number of stringers 3 provided on the upper skin panel 11 can vary in the wingspan direction. Specifically, as shown... Figure 1 As shown, along the wingspan direction, the upper skin panel 11 is divided into a first region C1 near the wing root and a second region C2 near the wingtip. The number of stringers 3 in the first region C1 is greater than the number of stringers 3 in the second region C2. For example, two stringers 3 are set in the first region C1, and one stringer 3 is set in the second region C2. Dividing the upper skin panel 11 into different regions and setting different numbers of stringers 3 in different regions can both strengthen the structural strength of the upper skin panel 1 and reduce the weight of the stringers 3, thereby reducing the overall weight of the panel.

[0056] Of course, depending on the specific dimensions of the upper panel 1, it can be adaptively divided into multiple regions. In the direction from the wing root to the wing tip, the number of stringer structures 3 in each region is different and decreases progressively. For example, the upper panel 1 can be divided into 3 regions: 3 stringer structures 3 are provided in the region near the wing root, 2 stringer structures 3 are provided in the region between the wing root and the wing tip, and 1 stringer structure 3 is provided in the region near the wing tip.

[0057] As can be understood, when the stringer structure 3 is arranged on the lower wall panel skin 21, the connecting portion 31 of the stringer structure 3 is connected to the side wall of the lower wall panel skin 21 close to the upper wall panel skin 11. In the wingspan direction of the wing, the number of the stringer structures 3 arranged on the lower wall panel skin 21 can be different. Specifically, as shown in Figure 4 , the lower wall panel skin 21 is divided into a third region C3 close to the wing root and a fourth region C4 close to the wing tip in the wingspan direction of the wing, the number of the stringer structures 3 arranged in the third region C3 is greater than the number of the stringer structures 3 arranged in the fourth region C4, for example, two stringer structures 3 are arranged in the third region C3, and one stringer structure 3 is arranged in the fourth region C4. By dividing the lower wall panel skin 21 into different regions and arranging different numbers of stringer structures 3 in different regions, the structural strength of the lower wall panel 2 can be improved, and the weight of the stringer structure 3 can be reduced, thereby reducing the weight of the entire wall panel.

[0058] As shown in Figure 4 , when the heat dissipation opening 22 arranged on the lower wall panel skin 21 is arranged in the third region C3, in the wingspan direction of the wing, the stringer structure 3 arranged in the third region C3 is arranged at the edge of the heat dissipation opening 22, which can further improve the strength of the opening of the heat dissipation opening 22.

[0059] As described above, the upper wall panel 1 can also be adaptively divided into multiple regions according to the specific size of the upper wall panel 1, and the number of the stringer structures 3 in each region is different and arranged in a decreasing manner in the direction from the wing root to the wing tip. For example, the upper wall panel 1 is divided into three regions, three stringer structures 3 are arranged in the region close to the wing root, two stringer structures 3 are arranged in the region between the wing root and the wing tip, and one stringer structure 3 is arranged in the region close to the wing tip.

[0060] When the stringer structure 3 is arranged on both the upper wall panel skin 11 and the lower wall panel skin 21, only the arrangement of the stringer structure 3 on the upper wall panel skin 11 and the arrangement of the stringer structure 3 on the lower wall panel skin 21 described above need to be combined, which will not be repeated here.

[0061] It can be understood that the length and number of the stringer structures 3 arranged in each region of the upper wall panel skin 11 and the lower wall panel skin 21 can be arranged according to the wingspan size and chord length size of the wing wall panel assembly, and is not limited to the arrangement described above and shown in Figure 1 Figure 4 . The larger the wingspan size of the wing wall panel assembly, the longer the length of the stringer structure 3 in a single region, and the larger the chord length size of the wing, the greater the number of stringer structures 3 arranged in a single region.

[0062] In some embodiments, as shown in​Figure 1 、 Figure 4 As shown in FIG. 1, in the chord direction, the end portion of the longeron structure 3 has a larger size than the middle portion of the longeron structure 3. Specifically, in the chord direction of the wing, the size of the connecting portion 31 at the two ends of the longeron structure 3 is larger than the size of the connecting portion 31 at the middle portion of the longeron structure 3. Through the above arrangement, the contact area between the end portion of the longeron structure 3 and the wall plate is increased, so that the end portion of the longeron structure 3 is connected more firmly with the wall plate, and the longeron structure 3 is prevented from being warped or falling off.

[0063] In some embodiments, as shown in FIG. 1, the access opening 23 formed in the lower wall plate skin 21 includes a maintenance opening 231 and a maintenance gap 232. The maintenance opening 231 is detachably connected with a maintenance opening cover 24, and the maintenance gap 232 is detachably connected with a maintenance cover plate 25. Figure 4

[0064] Specifically, the edge of the maintenance opening 231 is smooth, and the opening shape of the maintenance opening 231 is circular or elliptical. The maintenance opening cover 24 is detachably connected with the maintenance opening 231 through a connecting member 26 (for example, a row of nails), and the shape of the maintenance opening cover 24 is the same as the opening shape of the maintenance opening 231, for example. The maintenance opening cover 24 can at least completely cover the opening of the maintenance opening 231. The shape of the maintenance gap 232 is, for example, trapezoidal or rectangular, and can be adaptively arranged according to actual needs. The shape of the maintenance cover plate 25 is the same as the shape of the maintenance gap 232, and the maintenance cover plate 25 can at least completely cover the maintenance gap 232.

[0065] In the wing wall plate assembly, the maintenance opening 231 and the maintenance gap 232 are arranged on the lower wall plate skin 21, so that the worker can enter the installation space between the upper wall plate 1 and the lower wall plate 2 through the maintenance opening 231 or the maintenance gap 232 to perform inspection and maintenance on the electric drive device or other equipment in the installation space. Meanwhile, the maintenance opening cover 24 and the maintenance cover plate 25 are arranged on the maintenance opening 231 and the maintenance gap 232, respectively, and the maintenance opening 231 and the maintenance gap 232 can be closed by the maintenance opening cover 24 and the maintenance cover plate 25, respectively, when maintenance is not needed, so as to prevent sundries from entering the inside of the wing.

[0066] ​The main landing gear door cutout 27 is arranged at the area close to the wing root of the lower wall panel skin 21. The main landing gear door cutout 27 is used to provide space for the opening or stowing of the main landing gear, so as to avoid interference with the lower wall panel 2 during the opening or stowing of the main landing gear. The specific arrangement position, size and shape of the main landing gear door cutout 27 can be adaptively arranged according to the actual installation position, size and shape of the main landing gear, and no more limitation is made herein.

[0067] In addition, the wing wall panel assembly is made of carbon fiber cloth composite material and high-temperature toughened resin system, which can withstand the high-temperature environment requirement of the heat generated by the electric drive equipment inside the wing. In combination with the liquid forming process, the quality of the parts is improved. The design of the cable through hole 12 of the upper wall panel 1, the heat dissipation port 22 and the inlet and outlet 23 of the lower wall panel 2 and the corresponding strengthening form realize the nearby disassembly, heat dissipation and maintenance of the electric drive equipment under the premise of meeting the strength. The problem of integrated installation and arrangement of high-temperature electric drive equipment on the electric aircraft is solved, and the overall strength and various requirements of the system are met.

[0068] When the wing wall panel assembly needs to be assembled, the upper wall panel 1 and the lower wall panel 2 are assembled together, other wing parts (such as rib panels, supporting members of electric drive equipment, etc.) are installed between the upper wall panel 1 and the lower wall panel 2 to form an installation space, then the duct fan is installed on the upper wall panel 1 of the wing, then the worker enters the installation space through the inlet and outlet to install the electric drive equipment, and finally the electric drive equipment is connected with the duct fan by using the cable to realize the assembly of the whole wing wall panel assembly.

[0069] When the electric drive equipment in the installation space of the wing wall panel assembly needs to be maintained and repaired, the worker can first disassemble the maintenance port cover 24 or the maintenance cover plate 25 at the maintenance port 231 or the maintenance gap 232 of the lower wall panel skin 21, then the worker enters the installation space through the maintenance port 231 or the maintenance gap 232 (i.e. the inlet and outlet 23), and then the electric drive equipment can be maintained and repaired; after the maintenance and repair are completed, the worker exits from the maintenance port 231 or the maintenance gap 232, and re-installs the maintenance port cover 24 or the maintenance cover plate 25, and the whole maintenance and repair work is completed.

[0070] The utility model also provides a wing, the wing includes a duct fan, an electric drive setting and the above-mentioned wing wall panel assembly.

[0071] The ducted fan is arranged on the outer side of the upper wall plate 1 of the wing panel assembly, that is, the ducted fan is arranged on the side of the upper wall plate 1 away from the lower wall plate 2. After the ducted fan is arranged on the outer side of the upper wall plate 1, rotation of the fan blades of the ducted fan can provide power for the aircraft, and the shape structure of the ducted cover of the ducted fan can improve the aerodynamic performance of the wing and provide auxiliary lift for the wing.

[0072] The electric drive device is arranged in the mounting space between the upper wall plate 1 and the lower wall plate 2; the ducted fan is electrically connected with the electric drive device through a cable; and the cable is arranged in the cable through hole 12. After the electric drive device is electrically connected with the ducted fan, the electric drive device can provide power for the ducted fan.

[0073] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A wing panel assembly, characterized in that, The wing panel assembly includes: Upper wall panel (1), the upper wall panel (1) includes an upper wall panel skin (11); the upper wall panel skin (11) has a cable through hole (12); The lower wall panel (2) includes a lower wall panel skin (21). The upper wall panel (1) and the lower wall panel (2) are fixedly connected, and an installation space is formed between them. The installation space is used to install electric drive equipment. The lower wall panel skin (21) has a heat dissipation vent (22) and an inlet / outlet (23) communicating with the installation space. The heat dissipation vent (22) is used for heat dissipation of the electric drive equipment, and the inlet / outlet (23) is used for personnel passage.

2. The wing panel assembly according to claim 1, characterized in that, The outer surface of the upper panel skin (11) includes a positively curved surface structure (111) and a negatively curved surface structure (112) arranged in the direction from the leading edge of the wing to the trailing edge of the wing. The positively curved surface structure (111) and the negatively curved surface structure (112) have opposite bending directions, and the positively curved surface structure (111) bends toward the lower panel (2).

3. The wing panel assembly according to claim 1, characterized in that, The thickness of the upper panel skin (11) and the thickness of the lower panel skin (21) decrease in a first direction (X1); the first direction (X1) is parallel to the wingspan direction of the wing and extends from the wing root to the wingtip of the wing.

4. The wing panel assembly according to claim 1, characterized in that, A reinforcing ring (13) is provided on the upper wall panel skin (11); the reinforcing ring (13) is located at the edge of the cable through hole (12) and the inner hole of the reinforcing ring (13) is directly opposite to the cable through hole (12).

5. The wing panel assembly according to claim 1, characterized in that, The number of cable through holes (12) is multiple; the multiple cable through holes (12) are spaced apart along the wingspan direction.

6. The wing panel assembly according to claim 1, characterized in that, The number of heat dissipation vents (22) is multiple; the multiple heat dissipation vents (22) are spaced apart along the wingspan direction.

7. The wing panel assembly according to any one of claims 1-6, characterized in that, The upper wall panel skin (11) is provided with a long stringer structure (3); And / or, A long stringer structure (3) is provided on the lower wall panel skin (21).

8. The wing panel assembly according to claim 7, characterized in that, In the chord length direction, the end dimension of the long stringer (3) is larger than the middle dimension of the long stringer (3).

9. The wing panel assembly according to any one of claims 1-6, characterized in that, The inlet / outlet (23) includes a maintenance port (231) and a maintenance notch (232); a maintenance port cover (24) is detachably connected to the maintenance port (231) and is used to block the maintenance port (231); a maintenance cover plate (25) is detachably connected to the maintenance notch (232) and is used to block the maintenance notch (232).

10. A wing, characterized in that, The wing includes a ducted fan, an electric drive system, and a wing panel assembly as described in any one of claims 1-9; The ducted fan is located on the outside of the upper wall panel (1); the electric drive device is located in the installation space between the upper wall panel (1) and the lower wall panel (2); the ducted fan and the electric drive device are electrically connected by a cable; the cable passes through the cable through hole (12).

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