CN114901000A - Thermal insulation assembly and assembling method thereof - Google Patents

Abstract

The invention provides a heat insulation component and an assembly method thereof, the heat insulation component is arranged on a stabilizing device of aviation equipment, electronic equipment is fixed in the heat insulation component, and the heat insulation component comprises: the heat preservation cover is detachably and hermetically connected with the heat preservation base to define a heat preservation cavity, and the inner shell component is positioned in the heat preservation cavity and fixedly connected with the heat preservation base; the inner shell assembly comprises an inner shell with a polygonal cross section, and the inner shell is a metal piece. According to the heat insulation assembly, the sealed heat insulation cavity is defined by the heat insulation cover and the heat insulation base, a stable working temperature environment is provided for electronic equipment fixed in the heat insulation cavity, the situation that the normal work of the electronic equipment is influenced by overhigh or overlow temperature in the heat insulation cavity is avoided, and the running stability of the electronic equipment is improved. And, be equipped with the metal inner casing in the heat preservation cavity, have good structural strength and support performance to the structural stability of heat preservation subassembly has been improved.

Description

Thermal insulation assembly and assembling method thereof

Technical Field

The invention relates to the technical field of heat preservation of electronic equipment in a stabilizing device of aviation equipment, in particular to a heat preservation assembly and an assembling method thereof.

Background

According to actual use requirements, the aviation equipment is provided with a stabilizing device at the tail end of an external cable so as to prevent the aviation equipment from rotating and jolting too severely to influence the normal work of the aviation equipment. The electronic equipment is installed inside the stabilizing device. When the aviation equipment is in a high-altitude flight state, the electronic equipment in the stabilizing device is also in the same working environment. The temperature of the working environment is extremely low, so that a shell with good heat preservation effect and structural strength needs to be designed for the electronic equipment in the stabilizing device.

Disclosure of Invention

The invention provides a heat insulation assembly and an assembly method thereof, and aims to solve the technical problem of how to improve the structural strength and the heat insulation performance of a heat insulation shell.

According to the heat preservation assembly provided by the embodiment of the invention, the heat preservation assembly is arranged on a stabilizing device of aviation equipment, electronic equipment is fixed in the heat preservation assembly, and the heat preservation assembly comprises:

a heat-insulating base;

the heat preservation cover is detachably and hermetically connected with the heat preservation base to limit a heat preservation chamber;

the inner shell assembly is positioned in the heat insulation cavity and is fixedly connected with the heat insulation base;

wherein, the inner shell subassembly includes that the cross section is the interior casing of polygon, interior casing is the metalwork.

According to the heat insulation assembly provided by the embodiment of the invention, the sealed heat insulation chamber is defined by the heat insulation cover and the heat insulation base, so that a stable working temperature environment is provided for electronic equipment fixed in the heat insulation chamber, the phenomenon that the normal work of the electronic equipment is influenced by overhigh or overlow temperature in the heat insulation chamber is avoided, and the running stability of the electronic equipment is improved. And, be equipped with the metal inner casing that the cross section is polygon in the heat preservation cavity, have good structural strength and support performance to the structural stability of heat preservation subassembly has been improved.

According to some embodiments of the invention, one of the mating surfaces of the heat-insulating base and the heat-insulating cover is provided with a heat-insulating groove, and the other mating surface is provided with a heat-insulating protrusion.

In some embodiments of the invention, the insulation assembly further comprises:

the fixing flange is positioned on the bottom surface of the heat-insulating base, and the inner shell assembly, the fixing flange and the heat-insulating base are connected through a fixing clamping pin assembly.

According to some embodiments of the invention, the insulation assembly further comprises:

the positioning rod fixing frame is connected to the outer surface of the inner shell and is provided with a hollow cavity;

and the positioning rod penetrates through the hollow cavity to be matched with the positioning hole in the fixed flange.

In some embodiments of the invention, the inner shell assembly comprises: the inner shell pillar is arranged on the inner side of the connecting corner of the two adjacent faces of the inner shell, and the inner shell pillar is matched with the fixing hole in the fixing flange.

According to some embodiments of the invention, the insulating cover is provided with a bolt assembly comprising:

the stud penetrates through the heat-insulating cover along the thickness direction of the heat-insulating cover;

the bolt is in threaded fit with the stud;

and the rubber gasket is sleeved on the stud and is stopped against between the matching surface of the bolt and the heat-insulating cover.

In some embodiments of the invention, the insulation assembly further comprises:

the cover fixing bent plate is fixedly connected with the inner shell;

the cover support frame is connected with the cover fixing bent plate, a connecting hole is formed in the cover support frame, and the heat preservation cover is fixedly connected with the inner shell through the bolt assembly and the connecting hole.

According to some embodiments of the invention, the heat-insulating base is a truncated cone-shaped shell, and the outer peripheral wall of the heat-insulating base part is inwards recessed to form a first handle position;

the heat preservation lid with heat preservation base looks adaptation, the partial periphery wall of heat preservation lid inwards caves in and forms the second handle position.

In some embodiments of the present invention, the heat-insulating base and the heat-insulating cover are made of polyurethane material through a foaming process.

According to the assembling method of the heat preservation assembly provided by the embodiment of the invention, the assembling method is used for assembling the heat preservation assembly, and comprises the following steps:

the inner shell is provided with a fixed dowel pin assembly, an inner shell strut, a cover fixing bent plate, a positioning rod fixing frame and a cover supporting frame, and is assembled with an inner shell bottom plate;

after the fixing clamping pin assembly is positioned and adjusted through the fixing flange, the positioning rod is inserted into the positioning rod fixing frame, and after the positioning and adjustment are carried out through the fixing flange, the inner shell support is screwed down;

the fixing flange, the cover supporting frame, the positioning rod and the positioning rod fixing frame are detached and then placed in the heat preservation base preset piece, the positioning rod fixing frame is installed, and positioning adjustment is carried out through the fixing flange;

after wrapping a plurality of layers of high-density polyethylene films at the end part of the positioning rod, inserting the positioning rod into a positioning rod hole of the fixed flange;

and after filling treatment of each hole cavity, removing the heat preservation base, the heat preservation cover and the inner shell assembly to perform surface paint spraying treatment.

Drawings

FIG. 1 is a front view of an insulation assembly according to an embodiment of the present invention;

FIG. 2 is a top view of an insulation assembly according to an embodiment of the present invention;

FIG. 3 is a partial structural cross-sectional view of an insulation assembly according to an embodiment of the present invention;

FIG. 4 is a front view of a thermal cover of a thermal assembly according to an embodiment of the present invention;

FIG. 5 is a top view of an insulating cover of an insulating assembly according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an insulating cover of an insulating assembly according to an embodiment of the invention;

FIG. 7 is a front view of a thermal base of a thermal assembly according to an embodiment of the present invention;

FIG. 8 is a top view of an insulating base of an insulating assembly according to an embodiment of the invention;

FIG. 9 is a cross-sectional view of an insulating base of an insulating assembly according to an embodiment of the invention;

FIG. 10 is a perspective view of an inner housing of an insulation assembly according to an embodiment of the present invention;

FIG. 11 is a top view of an insulating base of an insulating assembly according to an embodiment of the invention;

FIG. 12 is a cross-sectional view of an insulating base of an insulating assembly according to an embodiment of the invention;

FIG. 13 is a top view of a mounting flange of an insulation assembly according to an embodiment of the present invention;

FIG. 14 is a side view of a mounting flange of an insulation assembly according to an embodiment of the present invention;

FIG. 15 is a partial flow diagram illustrating a method of assembling a thermal insulation assembly according to an embodiment of the present invention;

FIG. 16 is a partial flow diagram illustrating a method of assembling a thermal insulation assembly according to an embodiment of the present invention;

FIG. 17 is a partial flow diagram illustrating a method of assembling a thermal insulation assembly according to an embodiment of the present invention;

FIG. 18 is a partial flow diagram illustrating a method of assembling a thermal insulation assembly according to an embodiment of the present invention;

FIG. 19 is a flow chart of a method of assembling a thermal assembly according to an embodiment of the present invention.

Reference numerals:

the heat-insulating assembly (100) is provided with a heat-insulating component,

the heat-insulation cover comprises a heat-insulation base 10, a heat-insulation groove 110, a first handle position 120, a heat-insulation cover 20, a heat-insulation bulge 210, a bolt assembly 220, a stud 221, a bolt 222, a rubber washer 223, a second handle position 230, an inner shell assembly 30, an inner shell 310, an inner shell bottom plate 320, an inner shell support 330, a lightening hole 340, a fixing flange 40, a positioning hole 410, a fixing hole 420, a positioning rod fixing frame 50, a positioning rod 60, a cover fixing bent plate 70 and a cover supporting frame 80.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

The electronic equipment arranged in the stabilizing device is provided with a heat-insulating shell according to the working requirement. The thermal insulation shell can firmly fix the installed equipment in the thermal insulation shell, and the material and the structural style of the thermal insulation shell are firm and durable so as to ensure that the equipment is not damaged when being impacted by external force. The heat-insulating shell has good heat-insulating property, so that the equipment can still normally work at extremely low ambient temperature. The heat preservation shell needs to have the functions of quick disassembly and quick assembly so as to be convenient for installation on a working site and be convenient for manual operation. The heat preservation shell should also possess locking device, prevents it to become flexible after the dress. The total weight of the thermal shell should be within the specified range.

The heat preservation shell, the heat preservation box and the like manufactured by the prior art are simple in structure, are basically of single-layer heat preservation shell structures, are not divided into an inner shell and an outer shell, and objects or equipment needing heat preservation can only be placed in the heat preservation shell but cannot be firmly installed and fixed in the heat preservation shell. The heat preservation shell is basically divided into an upper cover and a box body which are connected through locking mechanisms such as hinges and hasps or are directly pasted with adhesive tapes, and a gap is reserved between the upper cover and the shell after the upper cover and the shell are locked, so that heat leakage can be generated in the using process. In addition, the external connector is not arranged outside the heat preservation shell, and the heat preservation shell can only be placed in one place and cannot be fixed in one place, so that the heat preservation shell cannot be fixed. The incubator has no special requirements in terms of weight, and no weight reduction measures are taken if the incubator is overweight.

In addition, the existing heat preservation shell comprises an inner shell and an outer shell, and the manufacturing materials are all plastic foams such as polyurethane and the like, so that the purpose of firmly fixing the equipment in the shell cannot be achieved. The box body is made of only plastic foam and does not have reinforced structures such as supporting rods and fixing frames, and the whole insulation can is not firm. The box cover and the box body are connected or bonded through screws, and sealing strips or elastic gaskets are not designed, so that unstable connection or gaps exist easily, and internal heat leakage is caused. The entire incubator has no external connector, and the incubator cannot be fixed elsewhere.

Aiming at the problems, the invention designs the heat insulation assembly with high strength and the locking device, which has a double-layer structure of an inner shell assembly and a heat insulation shell. The inner shell is a fixing frame made of metal materials, and can firmly fix equipment to be installed on the fixing frame.

As shown in fig. 1 to 3, according to an embodiment of the present invention, an insulation assembly 100 is provided in a stabilizing device of an aircraft device, an electronic device is fixed in the insulation assembly 100, and the insulation assembly 100 includes: heat-insulating base 10, heat-insulating cover 20 and inner shell assembly 30.

Wherein, the heat preservation cover 20 is detachably and hermetically connected with the heat preservation base 10 to define a heat preservation chamber. That is, the thermal cover 20 and the thermal base 10 may be assembled together, and when the thermal cover 20 and the thermal base 10 are assembled together, the thermal cover 20 and the thermal base 10 define a thermal chamber with an inner portion sealed. Thereby, a stable working temperature environment can be provided for the electronic equipment in the thermal insulation component 100.

The inner shell assembly 30 is located in the heat preservation chamber and is fixedly connected with the heat preservation base 10. As shown in fig. 10, the inner shell assembly 30 includes an inner shell 310 with a polygonal cross section, and the inner shell 310 is a metal member.

It should be noted that, by arranging the metal inner housing 310 with a polygonal cross section in the heat-insulating chamber, a good supporting function can be achieved, and moreover, the heat-insulating assembly 100 has good structural strength, so that the structural stability of the heat-insulating assembly 100 can be improved.

According to the heat insulation assembly 100 provided by the embodiment of the invention, the heat insulation cover 20 and the heat insulation base 10 define the sealed heat insulation chamber, so that a stable working temperature environment is provided for the electronic equipment fixed in the heat insulation chamber, the phenomenon that the normal work of the electronic equipment is influenced by overhigh or overlow internal temperature of the heat insulation chamber is avoided, and the running stability of the electronic equipment is improved. Moreover, the metal inner shell 310 with a polygonal cross section is arranged in the heat preservation chamber, so that the heat preservation assembly 100 has good structural strength and support performance, and the structural stability is improved.

According to some embodiments of the present invention, one of the mating surfaces of the thermal base 10 and the thermal cover 20 is provided with a thermal insulation groove, and the other is provided with a matching thermal insulation protrusion. As shown in fig. 3, a ring-shaped heat insulation groove 110 may be provided on the upper end surface of the heat insulation base 10, and correspondingly, a ring-shaped heat insulation protrusion 210 is provided on the lower end surface of the heat insulation cover 20. Therefore, heat exchange between the inside of the heat insulation cavity and the outside can be effectively avoided, and the heat insulation performance of the heat insulation assembly 100 is improved. Of course, the heat insulating protrusion may be provided on the upper end surface of the heat insulating base 10, and the heat insulating groove may be provided on the lower end surface of the heat insulating cover 20.

In order to further improve the heat insulation performance of the heat insulation assembly 100, a sealing ring may be disposed in the heat insulation groove 110 to improve the sealing performance and the heat insulation performance of the heat insulation assembly 100.

In some embodiments of the present invention, as shown in fig. 1-3, the insulation assembly 100 further comprises: the fixing flange 40, the fixing flange 40 is located the bottom surface of heat preservation base 10, and inner shell, fixing flange 40 and heat preservation base 10 pass through the connection of fixed bayonet component. By fixedly attaching the fixing flange 40 below the heat insulating base 10, the heat insulating assembly 100 can be firmly and reliably fixed to the stabilizing device by the fixing flange 40.

According to some embodiments of the present invention, as shown in fig. 15, the insulation assembly 100 further comprises: a positioning rod holder 50 and a positioning rod 60.

The positioning rod fixing frame 50 is connected to the outer surface of the inner housing 310, the positioning rod fixing frame 50 has a hollow cavity, and the positioning rod 60 passes through the hollow cavity to be matched with the positioning hole 410 on the fixing flange 40. It should be noted that, by assembling the positioning rod fixing frame 50 and the positioning rod 60 on the outer surface of the inner housing 310, the positioning rod 60 can be aligned and matched with the positioning hole 410 on the fixing flange 40, so as to facilitate the alignment assembly of the heat preservation assembly 100.

In some embodiments of the present invention, as shown in FIG. 15, inner shell assembly 30 comprises: the inner shell pillars 330 are provided at the inner sides of the connecting corners of the two adjacent faces of the inner shell, and the inner shell pillars 330 are engaged with the fixing holes 420 of the fixing flange 40. It should be noted that the structural strength and stability of the inner shell assembly 30 can be further improved by providing the inner shell struts 330.

According to some embodiments of the present invention, as shown in fig. 5 and 6, the thermal cover 20 is provided with a bolt assembly 220, the bolt assembly 220 including: stud 221, bolt 222, and rubber washer 223.

The stud 221 penetrates through the heat insulation cover 20 along the thickness direction of the heat insulation cover 20, the bolt 222 is in threaded fit with the stud 221, and the rubber washer 223 is sleeved on the stud 221 and is stopped between matching surfaces of the bolt 222 and the heat insulation cover 20. As shown in fig. 5 and 6, the bolt assembly 220 may be disposed at a center of the insulation cover 20, and the bolt assembly 220 is disposed to facilitate the fixed assembly of the insulation cover 20 and the inner shell assembly 30.

In some embodiments of the present invention, as shown in fig. 15, the insulation assembly 100 further comprises: a cover fixing bent plate 70 and a cover supporting bracket 80.

Wherein the cover fixing bent plate 70 is fixedly coupled with the inner case 310. As shown in fig. 15, a cover fixing bent plate 70 is fixedly coupled to an upper end of an outer surface of the inner case 310. The cover support frame 80 is connected with the cover fixing bent plate 70, a connection hole is formed on the cover support frame 80, and the heat preservation cover 20 is fixedly connected with the inner housing 310 through the bolt assembly 220 and the connection hole. As shown in fig. 15, the coupling hole may be provided at a central position of the cover support bracket 80.

According to some embodiments of the present invention, as shown in fig. 5 and 7, the thermal base 10 is a truncated cone-shaped housing, and a portion of the outer peripheral wall of the thermal base 10 is recessed inwardly to form the first handle portion 120. The heat preservation cover 20 is matched with the heat preservation base 10, and part of the peripheral wall of the heat preservation cover 20 is inwards sunken to form a second handle position 230.

It should be noted that, because the outer surfaces of the heat-insulating base 10 and the heat-insulating cover 20 are arc surfaces, which is not beneficial for the operator to hold the heat-insulating base, the first handle position 120 is arranged on the outer peripheral wall of the heat-insulating base 10, and the second handle position 230 is arranged on the outer peripheral wall of the heat-insulating cover 20, which is convenient for the operator to hold the heat-insulating base.

In some embodiments of the present invention, the thermal base 10 and the thermal cover 20 are made of polyurethane material through a foaming process. Experiments prove that the polyurethane has good performance and structural strength, and the heat-insulating base 10 and the heat-insulating cover 20 are prepared by foaming the polyurethane material, so that the heat-insulating performance and the structural stability of the heat-insulating assembly 100 can be improved.

According to the assembling method of the heat preservation assembly 100 of the embodiment of the invention, the assembling method is used for assembling the heat preservation assembly 100, as shown in fig. 15-19, and the assembling method comprises the following steps:

s100, mounting a fixing clamp pin assembly, an inner shell support column, a cover fixing bent plate, a positioning rod fixing frame and a cover supporting frame on the inner shell, and assembling an inner shell bottom plate;

s200, after the fixing clamp pin assembly is positioned and adjusted through the fixing flange, the positioning rod is inserted into the positioning rod fixing frame, and after the positioning adjustment is carried out through the fixing flange, the inner shell support is screwed down;

s300, removing the fixing flange, the cover supporting frame, the positioning rod and the positioning rod fixing frame, placing the positioning rod and the positioning rod fixing frame in a preset part of a heat preservation base, installing the positioning rod fixing frame, and performing positioning adjustment through the fixing flange;

s400, winding a plurality of layers of high-density polyethylene films at the end part of the positioning rod, and inserting the positioning rod into a positioning rod hole of the fixed flange;

s500, after filling treatment is carried out on each hole cavity, the heat preservation base, the heat preservation cover and the inner shell assembly are removed to carry out surface paint spraying treatment.

The heat insulating assembly 100 and the assembling method thereof according to the present invention will be described in detail in one specific embodiment with reference to the accompanying drawings. It is to be understood that the following description is only exemplary in nature and should not be taken as a specific limitation on the invention.

The heat insulation assembly 100 is provided with reinforcing parts such as a support frame and a fixing frame, and the heat insulation shell is ensured to be firm and durable through secondary filling. The heat preservation subassembly 100 divides into two parts of heat preservation lid 20 and heat preservation base 10, and the butt joint department adopts heat-insulating groove 110 structural design, places a sealing washer in heat-insulating groove 110, and heat preservation lid 20 and heat preservation base 10 are fixed through the mode of bolt 222 with silicon rubber packing ring 223, have guaranteed its leakproofness, and under the correct dismouting state, equipment dismouting and use many times can not reduce thermal insulation performance, have guaranteed holistic heat preservation effect.

The outside of the heat preservation shell is provided with a fixed bayonet lock, the inside of the heat preservation shell is provided with a positioning rod fixing frame 50 and a positioning rod 60, and a matching part fixing flange 40 is designed. During installation, the fixing flange 40 is installed in advance, then the fixing bayonet is placed in a corresponding hole in the fixing flange 40, the installation shell is rotated by about 6 degrees, and the heat preservation base 10 can be installed on the fixing flange 40. The whole installation process does not need any tool, and quick installation and quick disassembly can be realized. After installation, the positioning rod 60 is placed into the positioning rod fixing frame 50 and screwed down, and locking can be achieved. The positioning rod 60 is designed to be heightened, so that the hand can operate above the heat insulation assembly 100, and the operation is very convenient. By reducing the weight reasonably, the weight of the present insulation assembly 100 is within a specified range.

According to the size requirement of the installation space, the heat insulation assembly 100 is designed into a shape of a cone with the top end of the cone removed, and three arc-shaped handle positions are arranged on the heat insulation cover 20 and the heat insulation base 10 so as to be convenient for installation operation by hands. The outer shape is shown in fig. 1-3.

The heat insulation assembly 100 mainly comprises an inner shell assembly 30, a positioning rod 60, a heat insulation outer shell, a fixing flange 40 and other parts. The heat preservation shell is divided into two parts, including heat preservation lid 20 and heat preservation base 10, at heat preservation lid 20 and heat preservation base 10 butt joint department, adopts heat-insulating groove 110 structural design, and heat preservation lid 20 and heat preservation base 10 fixing bolt install the silicon rubber packing ring additional, and electronic equipment is the encapsulated situation in the work, has guaranteed the holistic heat preservation effect of heat preservation subassembly 100. The main structure of the thermal cover 20 is shown in fig. 4-6.

Because the working environment temperature of the electronic equipment is extremely low and is lower than the lowest working temperature of each module in the electronic equipment, the heat preservation assembly 100 is additionally arranged outside the electronic equipment to keep the heat emitted by the battery in the electronic equipment in the heat preservation cavity. After comparing various materials, the polyurethane material is finally selected and used to apply the foaming method to manufacture the heat preservation base 10 and the heat preservation cover 20. The heat-insulating layer made of the material has good heat-insulating effect, is convenient to form, is not fatigue and not easy to deform, ensures that the temperature in the heat-insulating layer is always above the lowest working temperature of the electronic equipment module when the external environment is extremely low, ensures the normal work of the internal module, and ensures that the electronic equipment meets the working temperature requirement.

The structure and the manufacturing process of each component part are as follows:

a. a heat preservation cover 20;

as shown in fig. 4 to 6, the thermal cover 20 is composed of an upper cover bolt assembly 220, a thermal cover work, and the like. When the heat-insulating cover 20 is manufactured, the embedded studs 221 are placed in corresponding holes of a workpiece of the heat-insulating cover 20, the heat-insulating cover 20 is fixed by the M8 bolts 222, the polyurethane A, B material is quickly stirred and blended according to the proportion of 1:1, the mixture is poured into the reserved groove, the surface of the mixture is flattened after drying and shaping, the whole inner surface and the whole outer surface of the mixture are painted, and the bolts 220 and the silicone rubber gaskets 223 are installed after painting, so that the heat-insulating cover 20 is manufactured.

b. A heat-insulating base 10;

the heat-insulating base 10 is composed of fixing pins, a positioning rod fixing frame 50, a heat-insulating layer seat workpiece, a positioning rod 60 and the like, as shown in fig. 7 to 9. When the piece is manufactured, the fixing bayonet, the positioning rod fixing frame 50, the positioning rod 60 and the inner shell 310 are installed together, after the fixing is carried out by the inner shell strut 330 and the screws, the polyurethane A, B material is rapidly stirred and blended according to the proportion of 1:1, poured into a reserved groove, dried and shaped, and then the surface is flattened. After the polyurethane is dried and shaped, the inner shell assembly 30 is detached, the inner surface and the outer surface of the whole body are painted, and the positioning rod 60 and the silicon rubber gasket 223 are installed after the paint is painted, so that the heat preservation base 10 is manufactured.

c. An inner shell assembly 30;

the structure of the inner shell assembly 30 is designed into a hexagonal structure according to the position requirement of the equipment installed in the inner shell assembly, and comprises an inner shell 310, an inner shell bottom plate 320 and other parts, and a plurality of lightening holes 340 are formed due to the weight requirement. The inner shell is simple in construction and easy to manufacture, as shown in fig. 10-12.

d. A fixing flange 40;

the mounting flange 40 is shown in fig. 13-14 below.

The method of installation of the insulation assembly 100 is as follows:

a. mounting a base structural member;

the fixing bayonet, the inner shell pillar 330 and the cover fixing bent plate 70 are installed on the outer side of the inner shell 310, and the positioning rod fixing bracket 50 and the cover supporting frame 80 are installed. After the fixing bayonet is inserted into the fixing flange 40, the fixing bayonet is adjusted, after the fixing flange 40 is required to be inserted and rotated in place for a plurality of times continuously and smoothly, after the 6 fixing bayonet components are confirmed to be in a screwing state, the positioning rod 60 is screwed, and after the positioning rod 60 is required to be smoothly clamped into the corresponding positioning hole 410 of the fixing flange 40, the inner shell support 330 is screwed. After the assembly adjustment is completed, the fixing flange 40, the cover support frame 80, and the positioning rod fixing frame 50 are removed. A schematic diagram of the installation process is shown in fig. 15.

The heat preservation base 10 is sleeved with a workpiece, and the positioning rod fixing frame 50 is installed after the inner shell bottom plate 320 is tightly pressed with the bottom surface of the heat preservation base 10. Confirming that the mounting of the fixing flange 40 is smooth, the fixing flange 40 is smoothly inserted and smoothly rotated in place, the three positioning rods 60 can be easily screwed into the flange positioning holes 410, otherwise, the fixing snap pin assembly is readjusted and mounted. After the inner shell struts 330 are tightened one by one, the mounting flange 40 is removed. A schematic diagram of the installation process is shown in fig. 16.

b. The insulating layer is filled for protection;

after wrapping a plurality of layers of high-density polyethylene films at the tail part of the positioning rod 60, inserting the positioning rod 60 into a hole, wrapping or thinly coating a layer of mechanical lubricating oil by using the high-density polyethylene films by using a bayonet lock, simply fixing the embedded stud 221 on the bottom surface by using an M8 bolt 222, and plugging the polyethylene films into the hole on the top surface of the embedded stud 221 to be protruded from the surface. The guarding process is shown in fig. 17.

c. Filling and surface treatment of the heat-insulating layer;

filling the cavities 1-10 according to the direction in multiple times according to the control requirement of a key process, naturally drying, cutting off the foaming body exceeding the cavity part by using a knife, and smoothing and excessively polishing the joint by using a file. And removing the crack part and refilling when the crack is found to be in. After the drying is completed, the positioning rod 60 is pulled out, and the inner shell assembly 30 and the polyethylene film protection are removed. And after the upper cover screw assembly, the heat insulation layer seat and the heat insulation cover structural member are filled and fully dried, the materials are sent to a processing factory for surface painting. The filling process is shown in fig. 18.

It is emphasized that the insulating assembly 100 of the present invention is divided into two parts, an inner shell assembly 30 and an insulating outer shell, and the inner shell 310 is made of metal. The heat preservation shell is designed for reinforcing the structural strength, and secondary filling is carried out. A heat insulation groove 110 is designed between the heat insulation cover 20 and the heat insulation base 10, a sealing ring is installed, and the heat insulation cover and the heat insulation base are connected in a mode of screws and silicon rubber gaskets 223. The heat insulating unit 100 is fixed by a fixing pin and includes a locking device. The installation and the disassembly of the heat insulation assembly 100 do not need tools, and the quick installation and the quick disassembly can be realized.

In summary, the heat preservation assembly 100 of the present invention has a double-layer structure of the inner shell assembly 30 and the heat preservation outer shell. The inner shell 310 is a fixing frame made of metal, and can firmly fix electronic equipment to be installed in the inner shell, tools are not needed in the whole installation and disassembly processes, quick installation and disassembly can be achieved, and manual operation is convenient. The heat insulation assembly 100 is designed with a support frame, a fixing frame and other reinforcing structures, so that the heat insulation assembly 100 is firm and durable. The heat preservation shell is divided into two parts of a heat preservation cover 20 and a heat preservation base 10, the butt joint part adopts the structural design of the heat insulation groove 110, the heat preservation cover 20 and the heat preservation base 10 are mutually fixed in a mode of adding a silicon rubber gasket through a bolt, the heat preservation performance cannot be reduced when the electronic equipment is repeatedly disassembled and assembled and used in a correct disassembling and assembling state, and the overall heat preservation effect is guaranteed. The heat preservation assembly 100 is fixed through a fixing bayonet and is provided with a locking device, and the heat preservation assembly cannot be loosened in a bumpy and rotating state in the using process.

In addition, the onboard environment has extremely strict weight requirements on equipment, and the heat preservation assembly 100 is designed in a light weight mode, so that the total weight is ensured to be within a specified range, and the normal work of the electronic equipment is not affected.

While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention.

Claims (10)

1. The utility model provides a heat preservation subassembly, its characterized in that, the stabilising arrangement of aviation equipment is located to the heat preservation subassembly, heat preservation subassembly internal fixation has electronic equipment, the heat preservation subassembly includes:

a heat-insulating base;

the heat preservation cover is detachably and hermetically connected with the heat preservation base to limit a heat preservation chamber;

the inner shell assembly is positioned in the heat insulation cavity and is fixedly connected with the heat insulation base;

wherein, the inner shell subassembly includes that the cross section is the interior casing of polygon, interior casing is the metalwork.

2. The insulating assembly of claim 1, wherein one of the mating surfaces of the insulating base and the insulating cover is provided with an insulating groove and the other mating surface is provided with an insulating protrusion.

3. The insulating assembly of claim 1, further comprising:

the fixing flange is positioned on the bottom surface of the heat-insulating base, and the inner shell assembly, the fixing flange and the heat-insulating base are connected through a fixing clamping pin assembly.

4. The insulating assembly of claim 3, further comprising:

the positioning rod fixing frame is connected to the outer surface of the inner shell and is provided with a hollow cavity;

and the positioning rod penetrates through the hollow cavity to be matched with the positioning hole in the fixed flange.

5. The insulating assembly of claim 3, wherein the inner shell assembly comprises: the inner shell pillar is arranged on the inner side of the connecting corner of the two adjacent faces of the inner shell, and the inner shell pillar is matched with the fixing hole in the fixing flange.

6. The insulating assembly of claim 1, wherein the insulating cover is provided with a bolt assembly comprising:

the stud penetrates through the heat-insulating cover along the thickness direction of the heat-insulating cover;

the bolt is in threaded fit with the stud;

and the rubber gasket is sleeved on the stud and is stopped against between the matching surface of the bolt and the heat-insulating cover.

7. The insulating assembly of claim 6, further comprising:

the cover fixing bent plate is fixedly connected with the inner shell;

the cover support frame is connected with the cover fixing bent plate, a connecting hole is formed in the cover support frame, and the heat preservation cover is fixedly connected with the inner shell through the bolt assembly and the connecting hole.

8. The insulating assembly of claim 1, wherein the insulating base is a truncated cone shaped housing, and the outer peripheral wall of the insulating base portion is recessed inwardly to form a first handle position;

the heat preservation lid with heat preservation base looks adaptation, the partial periphery wall of heat preservation lid inwards caves in and forms the second handle position.

9. The insulating assembly according to any of claims 1 to 8, characterized in that the insulating base and the insulating cover are made of polyurethane material by a foaming process.

10. A method of assembling an insulation assembly, the method being for assembling an insulation assembly according to any one of claims 1 to 9, the method comprising:

the inner shell is provided with a fixed dowel pin assembly, an inner shell strut, a cover fixing bent plate, a positioning rod fixing frame and a cover supporting frame, and is assembled with an inner shell bottom plate;

after the fixing clamping pin assembly is positioned and adjusted through the fixing flange, the positioning rod is inserted into the positioning rod fixing frame, and after the positioning and adjustment are carried out through the fixing flange, the inner shell support is screwed down;

the fixing flange, the cover supporting frame, the positioning rod and the positioning rod fixing frame are detached and then placed in the heat preservation base preset piece, the positioning rod fixing frame is installed, and positioning adjustment is carried out through the fixing flange;

after wrapping a plurality of layers of high-density polyethylene films at the end part of the positioning rod, inserting the positioning rod into a positioning rod hole of the fixed flange;

and after filling treatment of each hole cavity, removing the heat preservation base, the heat preservation cover and the inner shell assembly to perform surface paint spraying treatment.

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