A combined heat seal structure suitable for telescopic wing sliding process

By using a combined heat-sealing structure of flexible quartz felt and brush, the dynamic heat-sealing problem of the telescopic wing during large-amplitude movements is solved, achieving heat sealing of the telescopic wing in both fully extended and retracted states, thus improving thermal adaptability and thermal reliability.

CN116588314BActive Publication Date: 2026-01-02BEIJING LINJIN SPACE AIRCRAFT SYST ENG INST
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Patent Information

Application Number
CN202310441811.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-23
Publication Date
2026-01-02
Estimated Expiration
2043-04-23

AI Technical Summary

Technical Problem

Existing technologies cannot achieve dynamic thermal sealing of telescopic wings during large-scale movements, and thermal sealing solutions are difficult to implement without affecting the movement of moving parts.

Method used

A combined heat-sealing structure using flexible quartz felt and flexible quartz brushes is employed. The flexible quartz felt is used for static heat sealing when the telescopic wing is fully extended and retracted, while the flexible quartz brushes are used for dynamic heat sealing during the movement of the telescopic wing.

Benefits of technology

It achieves dynamic thermal sealing of the telescopic wing during a wide range of movements, improving thermal adaptability and thermal reliability, and ensuring the thermal sealing effect of high-speed aircraft in a large airspace.

✦ Generated by Eureka AI based on patent content.

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Abstract

A combined heat sealing structure suitable for telescopic wing sliding process, the structure comprises telescopic wing, fixed wing, flexible quartz brush, flexible quartz felt; the fixed wing is a cavity structure, the telescopic wing is placed in the fixed wing cavity, the outer surface of the telescopic wing is provided with a boss, the boss on the outer surface of the telescopic wing is provided with a groove, the flexible quartz felt is installed in the groove, and the flexible quartz brush is fixed on the outer surface of the telescopic wing. Through the structural design of the flexible quartz brush, the heat sealing of the telescopic wing in the telescopic dynamic process is realized, through the structural design of the flexible heat insulation felt, the static heat sealing of the telescopic wing in the fully extended and fully retracted state is realized, and the dynamic heat sealing problem of the large amplitude moving part is solved.
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Description

TECHNICAL FIELD

[0001] The application relates to a combined heat sealing structure suitable for the sliding process of a retractable wing and belongs to the technical field of dynamic heat sealing of an aircraft. BACKGROUND

[0002] High-speed flight in the near space belongs to a new field, and under the condition, the switching of a large-span flight height can be realized by changing a lifting area through wing retraction, but the dynamic heat sealing technology of the retractable wing is difficult, and currently, there is no successful case at home and abroad.

[0003] In the prior art, the dynamic heat sealing technology of the retractable wing has the following problems:

[0004] First, the dynamic heat sealing of a large-amplitude moving part cannot be realized.

[0005] Second, the heat sealing scheme cannot realize the movement of the moving part. SUMMARY

[0006] The application solves the technical problem that the prior art has the defects, and provides a combined heat sealing structure suitable for the sliding process of a retractable wing.

[0007] The technical solution of the application is that the combined heat sealing structure suitable for the sliding process of the retractable wing comprises a retractable wing, a fixed wing, a flexible quartz felt and a flexible quartz brush.

[0008] The retractable wing is installed in the inner cavity of the fixed wing.

[0009] A first boss is arranged on the outer surface of the retractable wing.

[0010] The fixed wing is provided with two second bosses.

[0011] A first recess is arranged on the first boss, and the flexible quartz felt is installed in the first recess.

[0012] A second recess is arranged on the first boss.

[0013] A third recess is arranged on the fixed wing.

[0014] The flexible quartz brush comprises two, one of which is installed in the second recess, and the other is installed in the third recess.

[0015] Further, the protruding first groove of the flexible quartz felt has an outer surface with a protruding amount not less than the minimum gap between the second boss and the first boss.

[0016] Further, the material of the flexible quartz felt is a compressible and resilient material with a resilient amount greater than the minimum gap between the second boss and the first boss.

[0017] Further, the flexible quartz felt is fixed in the first groove by an adhesive.

[0018] Further, the flexible quartz brush includes a woven area and a loose hair area; the thickness of the woven area is not less than 5mm, and the thickness of the woven area is not greater than the depth of the third groove.

[0019] Further, the woven area of the flexible quartz brush is fixed in the second groove and the third groove by an adhesive and a metal block.

[0020] Further, the flexible quartz brush has a loose hair length greater than the gap between the fixed wing and the telescopic wing.

[0021] Further, the material of the flexible quartz brush is soft and does not affect the movement of the telescopic wing.

[0022] Further, the telescopic wing slides to the leftmost side, and the left flexible quartz felt and the two flexible quartz brushes have a heat sealing effect; the telescopic wing slides to the rightmost side, and the right flexible quartz felt and the two flexible quartz brushes have a heat sealing effect.

[0023] Further, when the telescopic wing slides to the middle state and the two flexible quartz felts are in a non-compressed state, the two flexible quartz brushes have a heat sealing effect.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] (1) The present application realizes dynamic heat sealing during the large range movement of the telescopic wing by the cooperation of the two flexible quartz brushes, improves the heat adaptation capability of the telescopic wing scheme, and lays a heat sealing foundation for the flight of the high-speed aircraft in a large air range.

[0026] (2) The present application realizes heat sealing in the fully extended and fully retracted states of the telescopic wing by the design scheme of the two flexible quartz felts, and improves the heat reliability under long-time high-speed flight working conditions.

[0027] (3) The present application has a compact overall structure, is suitable for various working environments, has high reliability, can still operate well under complex working conditions, has the characteristics of strong universality and wide application range, and has a very broad market application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings provided herein are for illustrative purposes only and, therefore, should not be considered to be limiting in any way. Like reference characters in the drawings are denoted by like reference characters throughout the various figures. In the drawings:

[0029] Fig. 1 、 Fig. 2 Figure 1 is a schematic view of the structure of the present application; 1 - telescopic wing; 2 - fixed wing; 3 - boss; 4 - groove; 5 - flexible quartz felt; 6 - flexible quartz brush; 7 - boss; 8 - groove; 9 - groove; 10 - woven area; 11 - scattered hair area; 12 - metal pressing block; 13 - screw. DETAILED DESCRIPTION

[0030] In order to better understand the above technical solutions, the technical solutions of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0031] The combination type heat sealing structure suitable for telescopic wing sliding process provided by the embodiments of the present application will be further described in detail below in combination with the drawings of the specification. The specific implementation manner can include (as shown in Figs. 1-2 The telescopic wing 1 is installed in the inner cavity of the fixed wing 2, the outer surface of the telescopic wing 1 is provided with a boss 3, the boss 3 on the outer surface of the telescopic wing 1 is provided with a groove 4, the flexible quartz felt 5 is installed in the groove 4, and the flexible quartz brush 6 is two, one of which is fixed in the groove 8, and the other is fixed in the groove 9.

[0032] In the combination type heat sealing scheme and structure suitable for telescopic wing sliding process, the feature is that the protruding groove 4 of the flexible quartz felt 5 has a protruding amount not less than the minimum gap between the boss 7 and the boss 3.

[0033] In the combination type heat sealing scheme and structure suitable for telescopic wing sliding process, the feature is that the material of the flexible quartz felt 5 is a compressible and resilient material, and the resilience is greater than the minimum gap between the boss 7 and the boss 3.

[0034] In the combination type heat sealing scheme and structure suitable for telescopic wing sliding process, the feature is that the flexible quartz felt 5 is fixed in the groove 4 by adhesive.

[0035] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0036] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0037] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0038] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0039] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0040] In the combined heat sealing scheme and structure suitable for the sliding process of the retractable wing, the flexible quartz brush 6 is composed of a woven area 10 and a loose area 11, the thickness of the woven area 10 is not less than 5 mm, and the thickness of the woven area 10 is not greater than the depth of the groove 9.

[0041] The working principle of the present application is as follows:

[0042] During the movement of the retractable wing 1, the two flexible quartz brushes 6 prevent the hot air flow from entering the gap between the fixed wing 2 and the retractable wing 1; when the retractable wing 1 is fully extended and fully retracted, the two flexible quartz felt 5 are respectively in the compressed state, preventing the hot air flow from entering the gap between the fixed wing 2 and the retractable wing 1. In the scheme provided in the embodiment of the present application,

[0043] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0044] The contents not described in detail in the specification of the present application are the known technology of those skilled in the art.

Claims

1. A combined heat seal structure suitable for use in a telescoping wing sliding process, characterized in that, It comprises telescopic wing (1), fixed wing (2), flexible quartz felt (5) and flexible quartz brush (6); The telescopic wing (1) is installed in the inner cavity of the fixed wing (2); The outer surface of the telescopic wing (1) is provided with a first boss (3); The fixed wing (2) is provided with two second bosses (7); The first boss (3) is provided with a first recess (4), and the flexible quartz felt (5) is installed in the first recess (4); The first boss (3) is provided with a second recess (8); The fixed wing (2) is provided with a third recess (9); The flexible quartz brush (6) is two, one of which is installed in the second recess (8), and the other is installed in the third recess (9); The outer surface of the flexible quartz felt (5) protrudes from the first recess (4), and the protruding amount is not less than the minimum gap between the second boss (7) and the first boss (3); The material of the flexible quartz felt (5) is a compressible and resilient material, and the resilience is greater than the minimum gap between the second boss (7) and the first boss (3); The flexible quartz felt (5) is fixed in the first recess (4) by adhesive; The flexible quartz brush (6) comprises a woven area (10) and a loose hair area (11), the thickness of the woven area (10) is not less than 5mm, and the thickness of the woven area (10) is not greater than the depth of the third recess (9); The woven area (10) of the flexible quartz brush (6) is fixed in the second recess (8) and the third recess (9) by adhesive and metal pressing block (12); The length of the flexible quartz brush (6) is greater than the gap between the fixed wing (2) and the telescopic wing (1); The material of the flexible quartz brush (6) is soft, which does not affect the movement of the telescopic wing (1); When the telescopic wing (1) slides to the leftmost side, the left flexible quartz felt (5) and the two flexible quartz brushes (6) play a heat sealing role, and when the telescopic wing (1) slides to the rightmost side, the right flexible quartz felt (5) and the two flexible quartz brushes (6) play a heat sealing role; When the telescopic wing (1) slides to the middle state and the two flexible quartz felts (5) are in a non-compressed state, the two flexible quartz brushes (6) play a heat sealing role.

Citation Information

Patent Citations

  • Multi-stage brush type sealing structure capable of adjusting last-stage pressure drop

    CN111663963A

  • Dynamic sealing mechanism between telescopic wing and aircraft cabin

    CN112572758A