Assembly and cabin window assembly positioning method

Abstract

The present invention discloses an assembly, including a positioning base plate and a preformed flap; the positioning base plate has a first end, a middle portion and a second end, the first end is used to connect with the first compartment shell, the second end is used to connect with the second compartment shell, and the middle portion is provided with a first positioning structure; the positioning base plate is used to enclose an inner cavity together with the first compartment shell, the second compartment shell, the first thermal insulation layer and the second thermal insulation layer; the middle portion of the preformed flap is provided with a second positioning structure, the second positioning structure is matched with the first positioning structure, and the shape of the preformed flap matches the shape of the inner cavity; the length of the preformed flap is greater than the distance between the first compartment shell and the second compartment shell. The present invention also discloses a method for assembling and positioning a compartment window, wherein the integral outer thermal protection layer can be directly formed with the assistance of the assembly, and the integrated opening reinforcement frame can be obtained by co-curing and processing, thereby avoiding the problem of position offset.

Description

Technical Field

[0001] The invention relates to the technical field of cabin window assembly, and in particular to an assembly body and a method for assembling and positioning a cabin window. Background Art

[0002] In order to meet the requirements of subsequent assembly and wave transmission, the current aircraft has a large number of windows of various shapes on the cabin, and the reinforcement frame around the opening is integrated with the heat protection layer to improve the strength of the opening. Figure 1 As shown. Therefore, the opening structure and molding process need to be designed; in addition, there is a heat insulation layer between the heat protection layer and the metal shell. The heat insulation layer is bonded to the surface of the metal shell by blocks. The heat insulation layer is a porous material with weak strength and small binding force on the mouth cover. When the heat protection layer is pressurized and cured, the opening part is prone to misalignment, resulting in the position of the mouth cover reinforcement frame offset, making the width of the opening reinforcement frame uneven, and even causing the reinforcement frame to be completely processed. In the worst case, the outer heat protection layer is scrapped.

[0003] Therefore, how to develop a method for cabin window assembly positioning that can avoid the position offset problem during pressurization has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a method for assembling and positioning an assembly and a cabin window, which avoids the problem of position offset during pressurization, improves the dimensional accuracy of the reinforcement frame, and improves the molding qualification rate of the cabin thermal protection layer; at the same time, the method improves the practical operability during the operation and reduces the risk of human control.

[0005] In order to achieve the above-mentioned object, the present invention provides an assembly, comprising: a positioning base plate and a cover preform;

[0006] The positioning base plate has a first end, a middle portion, and a second end, the first end being used for detachable connection with the first compartment shell, the second end being used for detachable connection with the second compartment shell, and the middle portion being provided with a first positioning structure; the positioning base plate is used to enclose an inner cavity together with the first compartment shell, the second compartment shell, the first thermal insulation layer, and the second thermal insulation layer;

[0007] A second positioning structure is provided in the middle of the flap preform, and the second positioning structure is connected with the first positioning structure in a coordinated manner. The shape of the flap preform is coordinated with the shape of the inner cavity. The length of the flap preform in the direction of the first compartment shell and the second compartment shell is greater than the distance between the first compartment shell and the second compartment shell.

[0008] Furthermore, a first card slot is provided at the first end of the positioning base plate, and a second card slot is provided at the second end, wherein the first card slot is used to set the first compartment shell; and the second card slot is used to set the second compartment shell.

[0009] Furthermore, the first positioning structure is a groove or a boss, the second positioning structure is a boss or a groove, and the groove is matched and connected with the boss.

[0010] Furthermore, the first positioning structure and the second positioning structure are both square.

[0011] Furthermore, the first positioning structure is surrounded by a slope having a slope of 1° to 5°.

[0012] The present invention provides a method for assembling and positioning a cabin window, the method comprising:

[0013] A positioning base plate is provided between the first compartment shell and the second compartment shell, the positioning base plate having a first end, a middle portion and a second end, the first end being detachably connected to the first compartment shell, the second end being detachably connected to the second compartment shell, and the middle portion being provided with a first positioning structure; a first thermal insulation layer is provided on the upper portion of the first compartment shell, and a second thermal insulation layer is provided on the upper portion of the second compartment shell, so as to obtain a positioning shell thermal insulation structure, wherein the positioning base plate, the first compartment shell, the first thermal insulation layer and the second thermal insulation layer of the second compartment shell together enclose an inner cavity;

[0014] A flap preform is obtained, wherein a second positioning structure is provided in the middle of the flap preform, the second positioning structure is matched and connected with the first positioning structure, and the shape of the flap preform matches the shape of the inner cavity; and the distance between the first compartment shell and the second compartment shell is less than the length of the flap preform;

[0015] Assembling the positioning housing heat insulation structure with the flap preform, providing an outer heat protection layer on the flap preform, and subjecting the preform to co-curing treatment to obtain a co-cured molded body;

[0016] The positioning base plate of the co-cured molded body is removed, and a cut is made between the first compartment shell and the second compartment shell to obtain an opening and an integrated structure of an outer heat protection layer reinforcement frame surrounding the opening.

[0017] Furthermore, the method of obtaining the preformed body of the mouth cover comprises:

[0018] The preformed body of the mouth cover is obtained by pre-curing and forming at a temperature of ≤80°C by means of tooling-assisted lamination or molding.

[0019] Furthermore, the heat protection layer is obtained by curing and molding a resin, and the curing temperature is ≥150°C.

[0020] Furthermore, the co-curing treatment conditions are: temperature of 150° C. to 170° C., pressure of 0 to 1 MPa, and vacuum degree of -0.08 MPa to -0.1 MPa.

[0021] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0022] The present invention provides an assembly and a method for assembling and positioning a cabin window. The opening between the first cabin shell and the second cabin shell is filled with a preformed cover. A positioning base plate is used to fix the first cabin shell and the second cabin shell. The positioning shell insulation structure is assembled with the preformed cover to obtain an assembly. Finally, the middle opening is machined to form an integrated opening reinforcement frame. The problem of positional offset during pressurization is avoided, the dimensional accuracy of the reinforcement frame is improved, and the qualified rate of cabin heat protection layer molding is improved. At the same time, the method improves the practical operability during the operation and reduces the risk of human control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of the cabin window assembly in the prior art;

[0025] Figure 2 is a structural diagram of an assembly provided by Example 1 of the present invention;

[0026] Figure 3 is a structural diagram of an assembly provided by Example 2 of the present invention;

[0027] Figure 4It is a flow chart of a method for assembling and positioning a compartment window provided by an embodiment of the present invention; wherein (A) is a schematic diagram of the connection between the positioning base plate and the first compartment shell and the second compartment shell; (B) is a positioning shell insulation structure obtained by adding the first insulation layer and the second insulation layer on the basis of (A); (C) is a cover preform structure; (D) is an assembly diagram of the positioning shell insulation structure and the cover preform; (E) is an outer heat protection layer added to the upper part of (D); (F) is the structure of (E) after curing; (G) is the structure after the positioning base plate is removed; (H) is a schematic diagram of cutting between the first compartment shell and the second compartment shell in (G); (I) is an integrated structure of the obtained opening and the outer heat protection layer reinforcement frame surrounding the opening;

[0028] 1. Positioning base plate; 11. First end; 12. Middle part; 13. Second end; 14. First positioning structure; 15. First slot; 16. Second slot; 2. Cover preform; 21. Second positioning structure; 3. External heat protection layer; 4. First compartment shell; 5. Second compartment shell; 6. First insulation layer; 7. Second insulation layer; 8. External heat protection layer reinforcement frame integrated structure; 9. Opening. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with specific implementations and examples, and the advantages and various effects of the present invention will be more clearly presented. It should be understood by those skilled in the art that these specific implementations and examples are used to illustrate the present invention, rather than to limit the present invention.

[0030] Throughout the specification, unless otherwise specifically stated, the terms used herein should be understood as meanings commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art to which the present invention belongs. In the event of a conflict, the present specification takes precedence.

[0031] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods. The "first" and "second" in the embodiments of the present invention do not represent the order and can be understood as nouns.

[0032] The process of discovering the technical problem to be solved by the embodiment of the present invention is as follows:

[0033] Figure 1 It is a structural diagram of cabin window assembly in the prior art. Figure 1 The compartment window comprises a first compartment shell 4, a second compartment shell 5, an outer heat protection layer reinforcement frame integrated structure 8, a first heat insulation layer 6, a second heat insulation layer 7 and an opening 9 between the first compartment shell and the second compartment shell.

[0034] The outer heat protection layer reinforcement frame integrated structure 8 comprises an outer heat protection layer and a reinforcement frame located around the opening, wherein the outer heat protection layer is located at an end of the reinforcement frame away from the first compartment shell;

[0035] The first heat insulation layer 6 is located between the heat protection layer reinforcement frame integrally formed body 8 and the first compartment shell 4;

[0036] The second heat insulation layer 7 is located between the heat protection layer reinforcement frame integrally formed body 8 and the second compartment shell 5 .

[0037] The heat-proof layer reinforcement frame integrally formed body 8 in the prior art is a heat-proof layer solidified on the reinforcement frame. Due to the existence of the opening and the fact that the heat-insulating layer is spliced ​​together from a porous material, its strength is relatively weak and the binding force on the mouth is relatively small. As a result, when the heat-proof layer is solidified, the opening is prone to misalignment, causing the position of the mouth cover reinforcement frame to shift, resulting in uneven width around the opening reinforcement frame, and even the phenomenon that the reinforcement frame is completely processed away. In the most serious cases, the outer heat-proof layer is scrapped.

[0038] The technical solution provided by the embodiment of the present invention is to solve the above technical problems, and the overall idea is as follows:

[0039] In a first aspect, an embodiment of the present invention provides an assembly, comprising: a positioning base plate 1 and a mouth cover preform 2;

[0040] The positioning base plate 1 has a first end 11, a middle portion 12, and a second end 13. The first end 11 is used for detachable connection with the first compartment shell 4, the second end 13 is used for detachable connection with the second compartment shell 5, and the middle portion 12 is provided with a first positioning structure 14; the positioning base plate 1 is used to enclose an inner cavity together with the first compartment shell, the second compartment shell, the first thermal insulation layer, and the second thermal insulation layer;

[0041] A second positioning structure 21 is provided in the middle of the mouth cover preform 2, and the second positioning structure 21 is matched and connected with the first positioning structure 14, and the shape of the mouth cover preform 2 is matched with the shape of the inner cavity; the length of the mouth cover preform 2 in the direction of the first section shell and the second section shell is greater than the distance between the first section shell 4 and the second section shell 5.

[0042] The reasons why the assembly can solve the above technical problems are:

[0043] With the assistance of the assembly, the integral outer heat protection layer can be directly formed on the mouth cover preform 2, and then co-cured to form a whole, and finally the opening and the integrated opening reinforcement frame are obtained through processing.

[0044] Since there is no opening when the heat protection layer is pressurized and cured, but it is a solid structure of the cover preform 2, and the first positioning structure 14 of the positioning base plate 1 and the second positioning structure 21 of the cover preform 2 are matched and connected so that no displacement will occur; and the first end 11 is used for detachable connection with the first compartment shell 4, and the second end 13 is used for detachable connection with the second compartment shell 5, so that the first compartment shell 4 and the second compartment shell 5 will not be displaced.

[0045] At the same time, since the length of the mouth cover preform 2 in the direction of the first compartment shell and the second compartment shell is greater than the distance between the first compartment shell 4 and the second compartment shell 5; when the opening is obtained by cutting and processing between the first compartment shell 4 and the second compartment shell 5, the excess mouth cover preform 2 that is not cut off and the excess outer heat protection layer 3 that is not cut off together form an integrated opening reinforcement frame 8.

[0046] Therefore, with the cooperation of the positioning base plate 1 and the opening cover preform 2, there will be no problem of misalignment of the opening part, and the width of the opening reinforcement frame is uniform around.

[0047] It should also be noted that the assembly is a connection diagram after assembly; before assembly, the positioning base plate 1 and the mouth cover preform 2 are separated.

[0048] Preferably, the first end 11 of the positioning base plate is provided with a first slot 15, and the second end 13 is provided with a second slot 16, wherein the first slot 15 is used to connect the first compartment shell 4; and the second slot is used to connect the second compartment shell 5. Furthermore, the first compartment shell 4 is bolted to the first slot 15, and the second compartment shell 5 is bolted to the second slot 16. Bolted connection is provided on the inner side of the compartment shell to provide a positioning reference for the cover preform.

[0049] The slot may be in a shape corresponding to the side of the first compartment shell 4. If the side of the first compartment shell 4 is a right angle, the first slot 15 is in a right angle shape (eg Figure 2 ); it can also be in the shape of a groove (such as Figure 3 );

[0050] Preferably, the first positioning structure 14 is a groove or a boss, and the second positioning structure 21 is a boss or a groove, and the groove is matched with the boss. The matching connection between the groove and the boss does not cause displacement. The shapes of the groove and the boss can be any desired shapes, as long as the shapes of the groove and the boss match.

[0051] Preferably, the first positioning structure 14 and the second positioning structure 21 are both square. The positioning hole is designed to be square, which can prevent misalignment and rotation.

[0052] More preferably, the first positioning structure 14 is configured with a slope of 1° to 5° around it. This design is to reduce the difficulty of demoulding. Most preferably, the slope around it is designed with a draft angle of 3° and a size of 50mm×50mm. The positioning boss of the preform of the cover corresponds to the positioning hole of the positioning base plate, and the matching size is 0.3mm smaller than the hole single plate.

[0053] In a second aspect, an embodiment of the present invention provides a method for assembling and positioning a cabin window, comprising the following steps:

[0054] S1. A positioning base plate 1 is arranged between the first compartment shell 4 and the second compartment shell 5. The positioning base plate 1 has a first end 11, a middle portion 12 and a second end 13. The middle portion 12 is provided with a first positioning structure;

[0055] The first end 11 is detachably connected to the first compartment shell 4, and the second end 13 is detachably connected to the second compartment shell 5. Figure 4 As shown in Figure (A);

[0056] A first insulation layer 6 is provided on the upper part of the first compartment shell 4, and a second insulation layer 7 is provided on the upper part of the second compartment shell 5. The positioning bottom plate, the first compartment shell, the first insulation layer and the second insulation layer of the second compartment shell together enclose an inner cavity to obtain a positioning shell insulation structure. The positioning shell insulation structure is as follows: Figure 4 As shown in Figure (B);

[0057] S2, obtaining a preformed body 2 of the mouth cover, the structure of which is as follows Figure 4 As shown in FIG. (C); a second positioning structure 21 is provided in the middle of the flap preform 2, the second positioning structure 21 is matched and connected with the first positioning structure 14, and the shape of the flap preform 2 is matched with the shape of the inner cavity; the distance between the first compartment shell 4 and the second compartment shell 5 is less than the length of the flap preform (the length is the length in the direction where the first compartment shell 4 and the second compartment shell 5 are located);

[0058] S3. Figure 4 The positioning shell insulation structure shown in Figure (B) is similar to Figure 4 The lid preform shown in FIG. (C) is assembled as follows Figure 4 As shown in FIG. (D) in FIG. 1 , an outer heat protection layer 3 is provided on the preformed body of the mouth cover. Figure 4 As shown in Figure (E) in the figure; after co-curing treatment, a co-cured molded body is obtained, such as Figure 4 As shown in Figure (F);

[0059] S4, removing the positioning base plate of the co-cured molded body. Figure 4 As shown in FIG. (G) of FIG. 1 , and cut between the first compartment shell and the second compartment shell, as shown in FIG. Figure 4 As shown in FIG. (H) in FIG. 1 , an integrated structure of an opening and an outer heat protection layer reinforcement frame surrounding the opening is obtained, such as Figure 4 As shown in Figure (I).

[0060] From the above content, it can be seen that a method for assembling and positioning a cabin window provided by the present invention is based on the mutual cooperation of a positioning base plate 1 and a cover preform 2, which solves the problem of position offset during the forming process of the reinforcement frame and improves the dimensional accuracy and forming quality of the opening reinforcement frame; at the same time, it reduces the disadvantage that traditional plugging covers are not reusable and reduces costs.

[0061] Preferably, the step of obtaining the preformed flap includes:

[0062] The preformed body of the mouth cover is obtained by pre-curing and forming at a temperature of ≤80°C by means of tooling-assisted lamination or molding.

[0063] Preferably, the heat-proof layer is obtained by curing and molding a resin, and the curing temperature is ≥150° C. The curing temperature is determined according to the selected resin, and the resin is preferably a phenolic resin.

[0064] Preferably, the co-curing treatment conditions are: temperature of 150°C to 170°C, pressure of 0 to 1 MPa, and vacuum of -0.08 MPa to -0.1 MPa. The co-curing treatment conditions are determined according to the selected materials and are obtained through experimental exploration to achieve better co-curing.

[0065] A method for assembling and positioning a cabin window of the present application will be described in detail below in combination with embodiments, comparative examples and experimental data.

[0066] Example 1

[0067] 1. The product is a large cross-shaped special-shaped structure cabin section, which is designed with a window of about 200mm×200mm in the cross-shaped negative curvature structure. The width of the reinforcement frame around the window is 15mm. The opening reinforcement frame adopts the method of co-curing and processing of the cover preform + heat protection layer to realize the molding of the special-shaped structure opening reinforcement frame, ensuring the integration of the reinforcement frame and the external heat protection layer. The width deviation of the reinforcement frame after molding does not exceed 2mm, which meets the design requirements.

[0068] 2. Design a positioning base plate 1, such as Figure 2As shown, it has a first end 11, a middle part 12, and a second end 13, which provide a positioning reference for the preform of the mouth cover. Among them, the first positioning structure 14 is designed as a square positioning hole, which can prevent both misalignment and rotation; at the same time, in order to reduce the difficulty of demoulding, the surrounding inclined surfaces are designed with a 3° draft angle, and the size is 50mm×50mm. Since the side of the first compartment shell 4 is a right angle shape, the first card slot 15 is a right angle shape (such as Figure 2 ); the side of the second compartment shell 5 is a right-angle shape, and the second slot 16 is a right-angle shape; then the side of the first compartment shell 4 is connected to the first slot 15 with screws, and the side of the second compartment shell 5 is connected to the second slot 16 with screws.

[0069] 3. The preformed body 2 of the mouth cover is designed to be formed by prepreg layering, and the outer dimensions and density of the preformed body are ensured by pre-pressing the tooling bolts. A second positioning structure 21 is provided in the middle of the preformed body 2 of the mouth cover, and the second positioning structure 21 is designed to be a square boss matched with the square positioning hole, and the square boss corresponds to the square positioning hole.

[0070] 4. The resin used to obtain the outer heat protection layer 3 is phenolic resin, and its curing temperature is greater than 160° C. Therefore, during the pre-pressing process, the temperature is controlled between 80° C. and 90° C., and the time is 1 h to 2 h.

[0071] 5. During assembly, first install the positioning base plate on the inner side of the shell: that is, screw the first end 11 to the first compartment shell 4, and screw the second end 13 to the second compartment shell 5; then assemble the cover preform, and the two are positioned by the square boss and the square positioning hole. After assembly, the shape of the preform is basically consistent with the shape of the compartment insulation layer, and the step difference is less than 0.5mm.

[0072] 6. After the preform is positioned and assembled, the outer heat protection layer 3 is directly formed by tape laying, and finally co-cured at 160°C and vacuum + 0.2MPa pressure to form a whole.

[0073] 7. First remove the positioning base plate 1, and then process the opening. After processing, the cross section of the opening reinforcement frame is flat, without defects such as delamination, protrusions, depressions, and delamination. The bonding quality between the opening reinforcement frame and the outer heat protection layer is good and there is no obvious interface. At the same time, through ultrasonic and radiographic testing, the width uniformity of the reinforcement frame is good, and the deviation is within 2mm, which meets the design requirements. In addition, the removed metal positioning block can be reused.

[0074] Example 2

[0075] 1. The product is a large cross-shaped special-shaped structure cabin section, which is designed with a window of about 200mm×200mm in the cross-shaped negative curvature structure. The width of the reinforcement frame around the window is 15mm. The opening reinforcement frame adopts the method of co-curing and processing of the cover preform + heat protection layer to realize the molding of the special-shaped structure opening reinforcement frame, ensuring the integration of the reinforcement frame and the external heat protection layer. The width deviation of the reinforcement frame after molding does not exceed 2mm, which meets the design requirements.

[0076] 2. Design a positioning base plate 1, such as Figure 3 As shown, it has a first end 11, a middle part 12, and a second end 13, which provide a positioning reference for the preform of the mouth cover. Among them, the first positioning structure 14 is designed as a square positioning hole, which can prevent both misalignment and rotation; at the same time, in order to reduce the difficulty of demoulding, the surrounding inclined surfaces are designed with a 3° draft angle, and the size is 50mm×50mm. Since the side of the first compartment shell 4 is a right-angle shape, the first card slot 15 is in the shape of a groove with a right-angled side (such as Figure 3 As shown in the figure, the two ends of the first compartment shell 4 are stuck in the grooves of the first slot 15; the side of the second compartment shell 5 is a right-angle shape, and the second slot 16 is in the shape of a groove with a right-angled side, so that the two ends of the first compartment shell 4 are stuck in the grooves of the first slot 15; then the side of the first compartment shell 4 is connected to the first slot 15 by screws, and the side of the second compartment shell 5 is connected to the second slot 16 by screws.

[0077] 3. The preformed body 2 of the mouth cover is designed to be formed by prepreg layering, and the outer dimensions and density of the preformed body are ensured by pre-pressing the tooling bolts. A second positioning structure 21 is provided in the middle of the preformed body 2 of the mouth cover, and the second positioning structure 21 is designed to be a square boss matched with the square positioning hole, and the square boss corresponds to the square positioning hole.

[0078] 4. The resin used to obtain the outer heat protection layer 3 is phenolic resin, and its curing temperature is greater than 160° C. Therefore, during the pre-pressing process, the temperature is controlled between 80° C. and 90° C., and the time is 1 h to 2 h.

[0079] 5. During assembly, first install the positioning base plate on the inner side of the shell: that is, screw the first end 11 to the first compartment shell 4, and screw the second end 13 to the second compartment shell 5; then assemble the cover preform, and the two are positioned by the square boss and the square positioning hole. After assembly, the shape of the preform is basically consistent with the shape of the compartment insulation layer, and the step difference is less than 0.5mm.

[0080] 6. After the preform is positioned and assembled, the outer heat protection layer 3 is directly formed by tape laying, and finally co-cured at 160°C and vacuum + 0.2MPa pressure to form a whole.

[0081] 7. First remove the positioning base plate 1, and then process the opening. After processing, the cross section of the opening reinforcement frame is flat, without defects such as delamination, protrusions, depressions, and delamination. The bonding quality between the opening reinforcement frame and the outer heat protection layer is good and there is no obvious interface. At the same time, through ultrasonic and radiographic testing, the width uniformity of the reinforcement frame is good, and the deviation is within 2mm, which meets the design requirements. In addition, the removed metal positioning block can be reused.

[0082] Comparative Example 1

[0083] The comparative example adopts the traditional cabin window assembly method, that is, the heat protection layer is solidified on the reinforcement frame. The position of the opening reinforcement frame is offset, making the width of the opening reinforcement frame uneven, with a deviation of more than 2 cm.

[0084] Finally, it should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article, or apparatus.

[0085] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An assembly, characterized in that: include: An integrated structure of a positioning bottom plate, a cover preform, an opening and an outer heat protection layer reinforcement frame surrounding the opening; The positioning base plate has a first end, a middle portion, and a second end, the first end being used for detachable connection with the first compartment shell, the second end being used for detachable connection with the second compartment shell, and the middle portion being provided with a first positioning structure; a first thermal insulation layer is provided on the upper portion of the first compartment shell, and a second thermal insulation layer is provided on the upper portion of the second compartment shell, so as to obtain a positioning shell thermal insulation structure; the positioning base plate is used to enclose an inner cavity together with the first compartment shell, the second compartment shell, the first thermal insulation layer, and the second thermal insulation layer; A second positioning structure is provided in the middle of the flap preform, the second positioning structure is connected with the first positioning structure, and the shape of the flap preform matches the shape of the inner cavity; the length of the flap preform in the direction of the first compartment shell and the second compartment shell is greater than the distance between the first compartment shell and the second compartment shell; The positioning shell insulation structure is assembled with the mouth cover preform, an outer heat protection layer is arranged on the mouth cover preform, and after co-curing treatment, a co-cured molded body is obtained, the positioning base plate of the co-cured molded body is removed, and a cut is made between the first compartment shell and the second compartment shell to obtain an opening and an outer heat protection layer reinforcement frame integrated structure surrounding the opening.

2. An assembly according to claim 1, characterized in that: The first end of the positioning base plate is provided with a first card slot, and the second end is provided with a second card slot. The first card slot is used to set the first compartment shell; the second card slot is used to set the second compartment shell.

3. An assembly according to claim 1, characterized in that: The first positioning structure is a groove or a boss, and the second positioning structure is a boss or a groove, and the groove is matched and connected with the boss.

4. An assembly according to claim 1 or 3, characterized in that: The first positioning structure and the second positioning structure are both square.

5. An assembly according to claim 4, characterized in that: The first positioning structure is surrounded by a slope having a slope of 1° to 5°.

6. A method for assembling and positioning a cabin window, characterized in that: The method comprises: A positioning base plate is provided between the first compartment shell and the second compartment shell, the positioning base plate having a first end, a middle portion and a second end, the first end being detachably connected to the first compartment shell, the second end being detachably connected to the second compartment shell, and the middle portion being provided with a first positioning structure; a first thermal insulation layer is provided on the upper portion of the first compartment shell, and a second thermal insulation layer is provided on the upper portion of the second compartment shell, so as to obtain a positioning shell thermal insulation structure, wherein the positioning base plate, the first compartment shell, the first thermal insulation layer and the second thermal insulation layer of the second compartment shell together enclose an inner cavity; A flap preform is obtained, wherein a second positioning structure is provided in the middle of the flap preform, the second positioning structure is matched and connected with the first positioning structure, and the shape of the flap preform matches the shape of the inner cavity; and the distance between the first compartment shell and the second compartment shell is less than the length of the flap preform; Assembling the positioning housing heat insulation structure with the flap preform, providing an outer heat protection layer on the flap preform, and subjecting the preform to co-curing treatment to obtain a co-cured molded body; The positioning base plate of the co-cured molded body is removed, and a cut is made between the first compartment shell and the second compartment shell to obtain an opening and an integrated structure of an outer heat protection layer reinforcement frame surrounding the opening.

7. A method for assembling and positioning a cabin window according to claim 6, characterized in that: The first end is connected to the first compartment shell by bolts, and the second end is connected to the second compartment shell by bolts.

8. A method for assembling and positioning a cabin window according to claim 6, characterized in that: The method of obtaining the preformed body of the mouth cover comprises: The preformed body of the mouth cover is obtained by pre-curing and forming at a temperature of ≤80°C by means of tooling-assisted lamination or molding.

9. A method for assembling and positioning a cabin window according to claim 6, characterized in that: The heat protection layer is obtained by curing and molding a resin, and the curing temperature is ≥150°C.

10. A method for assembling and positioning a cabin window according to claim 6, characterized in that: The co-curing treatment conditions are: temperature of 150° C. to 170° C., pressure of 0 to 1 MPa, and vacuum degree of -0.08 MPa to -0.1 MPa.

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