CN218788505U - Antenna heat shield - Google Patents
Antenna heat shield Download PDFInfo
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- CN218788505U CN218788505U CN202223330535.4U CN202223330535U CN218788505U CN 218788505 U CN218788505 U CN 218788505U CN 202223330535 U CN202223330535 U CN 202223330535U CN 218788505 U CN218788505 U CN 218788505U
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Abstract
The utility model provides an antenna separates heat exchanger relates to and separates heat exchanger technical field, including hot protecting sheathing, wave-transparent inner shell and upper end cover, in wave-transparent inner shell located hot protecting sheathing, be equipped with first insulating layer between wave-transparent inner shell and the hot protecting sheathing, the upper end cover was connected with wave-transparent inner shell, and the upper end cover is equipped with the second insulating layer towards wave-transparent inner shell one side, and a lateral surface that lies in projectile window department on the hot protecting sheathing at least is equipped with high temperature resistant impact surface course. The side surface at the position of the window of the projectile body is provided with the high-temperature impact resistant surface layer, so that the projectile body has good high-temperature resistance, wave transmission performance, thermal impact resistance and structural strength; other sides can satisfy temperature operation requirement and wave-transparent performance requirement, need not to bear high temperature impact, therefore other sides can selectively set up high temperature impact resistant surface course, as long as can satisfy service environment requirement can, this antenna separates heat exchanger can satisfy intensity, thermal-insulated and wave-transparent's requirement, can reduce cover body weight again, reduction in production and use cost.
Description
Technical Field
The utility model belongs to the technical field of separate the heat exchanger, specifically provide an antenna separates heat exchanger.
Background
With the development of the technology, tactical missiles develop in the directions of high speed, high precision, high maneuverability and the like, the speed is faster and faster, the flight speed of various advanced tactical missiles reaches more than 4Ma, and the reentry speed of a new-generation missile can reach dozens of Mach. When the hypersonic missile flies in the atmosphere, severe aerodynamic force and aerodynamic heating phenomena exist, and particularly the surface temperature of the missile body can reach over 1000 ℃ when the hypersonic missile enters a section again. The antenna heat shield is an important component of a hypersonic missile and is a barrier for protecting an antenna body from being influenced by a severe environment and working normally.
As a protective component of an antenna, an antenna heat shield needs to have comprehensive properties in many aspects, and the key and difficult point of structural design is usually heat insulation and light weight design on the premise of ensuring strength and electrical performance, however, the existing antenna cover usually cannot achieve light weight design under the condition of meeting the requirements of strength, electrical performance and heat insulation; when the lightweight design is achieved, the strength and the heat insulation performance are relatively poor.
Accordingly, there is a need in the art for an antenna heat shield that addresses the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an antenna separates heat exchanger can effectively reduce cover body weight, satisfies thermal-insulated and wave-transparent requirement simultaneously.
The technical scheme of the utility model is realized like this: the utility model provides an antenna separates heat exchanger, includes hot protective housing, wave-transparent inner shell and upper end cover, wave-transparent inner shell set up in the hot protective housing, just wave-transparent inner shell with be provided with first insulating layer between the hot protective housing, the upper end cover with wave-transparent inner shell is connected, just one side that the upper end cover orientation wave-transparent inner shell or kept away from wave-transparent inner shell is provided with the second insulating layer, a lateral surface that is located projectile window department on the hot protective housing at least is provided with high temperature resistant impact surface course.
Has the advantages that: the antenna heat insulation cover is arranged on the missile body window, in a high-temperature working stage, the surface of the antenna heat insulation cover, which is close to the missile body window, can bear high-speed aerodynamic force and heating action lasting for about 60s, and the pneumatic heating can enable the temperature of the outer surface to reach more than 700 ℃ in a short time, so that a high-temperature impact resistant surface layer is arranged at least on the side surface at the missile body window, and the side surface at the position has good high-temperature resistance, wave transmission performance, thermal impact resistance and structural strength; other sides that the antenna separates the heat exchanger satisfy the temperature operation requirement and pass through the ripples performance requirement can, need not to bear the high temperature and strike, but consequently other sides selectively set up high temperature resistant impact surface course, as long as can satisfy the service environment requirement can, on this basis, the utility model discloses an antenna separates heat exchanger can satisfy intensity, thermal-insulated and pass through the requirement of ripples, can reduce cover body weight again, reduction in production and use cost.
In the above-mentioned antenna separates the preferred technical scheme of heat exchanger, high temperature resistant impact surface course includes ceramic surface course and thermal-insulated surface course, thermal-insulated surface course sets up between ceramic surface course and hot protective housing.
Has the advantages that: the ceramic surface layer can bear a high-temperature environment, resist a thermal shock effect above 700 ℃, and together with the heat insulation surface layer, the ceramic surface layer can separate the influence of external high temperature on the inside of the antenna, and has good wave-transmitting performance and structural strength.
In the preferable technical scheme of the antenna heat shield, the high-temperature impact resistant surface layer is connected with the heat protection shell through a connecting piece.
Has the beneficial effects that: the connection is realized by using the connecting piece, so that the influence of a bonding mode on the heat insulation and wave permeability of the high-temperature impact resistant surface layer is avoided; the connecting piece is connected with the thermal protection shell, is located the wave-transparent inner shell outside, is not in the work area of electromagnetic wave, can not influence the wave-transparent rate of components and parts.
In the above preferred technical scheme of the antenna heat shield, the heat protection housing includes a housing bottom plate and a housing side plate, the housing bottom plate extends to an installation surface outside the housing side plate, the installation surface is provided with an installation hole, and the housing bottom plate and the housing side plate are integrally formed.
In the above preferred technical scheme of the antenna heat shield, the wave-transparent inner shell comprises an inner shell bottom plate and an inner shell side plate, the inner shell bottom plate and the inner shell side plate are integrally formed, and the inner shell side plate and the upper end cover are connected through a connecting piece.
Has the advantages that: the integral forming ensures that the structure is integrated, reduces the necessary fixed connection between the side plate and the bottom plate, and is convenient for the connection between the wave-transparent inner shell and other structures.
In the preferable technical scheme of the antenna heat shield, the first heat insulation layer is a fiber reinforced aerogel felt layer, and a packaging layer is wrapped outside the first heat insulation layer.
Has the beneficial effects that: the fiber reinforced aerogel felt layer has good heat insulation performance and certain wave-transmitting performance, the influence of external high temperature on the interior of the antenna is isolated, and the internal temperature is ensured to be lower than the temperature requirement; the encapsulation layer prevents that the phenomenon of dusting from appearing in the fiber reinforcement aerogel carpet course, avoids the dust to cause the influence to inside antenna.
In the preferred technical scheme of the antenna heat shield, the second heat insulation layer is a fiber reinforced aerogel felt layer or a thermal buffer coating, and the thermal buffer coating is an aerogel coating layer or a two-component silicone rubber layer.
In the above-mentioned antenna separates preferred technical scheme of heat exchanger, the ceramic surface course is quartz ceramic matrix composite layer, it is quartz fiber reinforcing aerogel felt layer to separate the heat surface course.
Has the beneficial effects that: the high-temperature impact resistant surface layer needs to bear the temperature of more than 700 ℃, and the quartz ceramic matrix composite layer can bear the high-temperature environment; the quartz fiber reinforced aerogel felt layer can bear a high-temperature environment and has certain wave-transmitting performance, and the internal antenna is guaranteed not to be affected by external high temperature and to normally operate.
In a preferred technical solution of the above antenna heat shield, the thermal protection outer shell, the wave-transparent inner shell, and the upper end cap are made of fiber-reinforced resin material.
Has the advantages that: the fiber reinforced resin material can meet certain temperature requirements and wave-transmitting performance requirements, and is relatively low in cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of an overall structure of an antenna heat shield according to the present invention;
fig. 2 is a schematic view of a thermal protective housing of an antenna heat shield according to the present invention;
fig. 3 is a schematic view of a wave-transparent inner shell of an antenna heat shield according to the present invention;
fig. 4 is a schematic view of a ceramic surface layer of an antenna heat shield according to the present invention;
fig. 5 is a schematic view of an upper cover of an antenna heat shield according to the present invention.
List of reference numbers: 1. a thermally protective enclosure; 11. a housing floor; 111. a mounting surface; 112. mounting holes; 12. a housing side panel; 2. A wave-transparent inner shell; 21. an inner shell bottom plate; 22. an inner shell side plate; 3. an upper end cover; 4. a first insulating layer; 5. a second insulating layer; 6. a high temperature impact resistant surface layer; 61. a ceramic facing; 62. a thermally insulating facing; 63. a titanium alloy bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model relates to an antenna separates specific embodiment of heat exchanger:
as shown in fig. 1 to 5, the antenna heat shield is mounted on the bullet window, and during the high temperature operation, the surface of the antenna heat shield close to the bullet window will be subjected to high-speed aerodynamic force and heating action lasting about 60s, and the aerodynamic heating will make the outer surface temperature reach above 700 ℃ in a short time. Therefore, the utility model discloses an antenna separates heat exchanger, including hot protective housing 1, wave-transparent inner shell 2 and upper end cover 3, wave-transparent inner shell 2 sets up in hot protective housing 1, and hot protective housing 1 and wave-transparent inner shell 2 are provided with first insulating layer 4 between, and first insulating layer 4 passes through the adhesive and bonds fixedly with hot protective housing 1 and wave-transparent inner shell 2, and the adhesive is any one in modified epoxy, two ingredient inorganic copper oxide, two ingredient pottery and the two ingredient aluminum silicates. The upper end cover 3 is connected with the wave-transparent inner shell 2, and a second heat insulation layer 5 is arranged on one side, facing the wave-transparent inner shell 2, of the upper end cover 3. And a high-temperature impact resistant surface layer 6 is arranged on one outer side surface of the thermal protection shell 1 at the position of the projectile body window.
Referring to fig. 2, the thermal protective housing 1 includes a housing bottom plate 11 and a housing side plate 12, a mounting surface 111 extends from the housing bottom plate 11 to the outside of the housing side plate 12, a mounting hole 112 is formed on the mounting surface 111, and the housing bottom plate 11 and the housing side plate 12 are integrally formed. Referring to fig. 1 and 3, the wave-transparent inner shell 2 includes an inner shell bottom plate 21 and an inner shell side plate 22, the inner shell bottom plate 21 and the inner shell side plate 22 are integrally formed, and the inner shell side plate 22 and the upper end cover 3 are connected by a connecting member.
Referring to fig. 1 and 4, the high temperature impact resistant facing 6 includes a ceramic facing 61 and a thermal insulation facing 62, the thermal insulation facing 62 being disposed between the ceramic facing 61 and the shell side plate 12 of the thermal protective shell 1. The high temperature impact resistant surface layer 6 is connected with the shell side plate 12 of the heat protection shell 1 through a titanium alloy bolt 63.
In this embodiment, the thermal protection outer shell 1, the wave-transparent inner shell 2 and the upper end cap 3 are all fiber-reinforced resin material shells, in the fiber-reinforced resin material, the fiber material is quartz fiber, and the resin is cyanate ester resin. First insulating layer 4 and second insulating layer 5 are glass fiber reinforcement aerogel felt layer, and first insulating layer 4 and 5 outer parcel of second insulating layer have the encapsulation layer, and the encapsulation layer is the quartz fiber cloth layer. The ceramic surface layer 61 is a quartz ceramic matrix composite layer, and the heat insulation surface layer 62 is a quartz fiber reinforced aerogel felt layer.
It is understood that, although in the above embodiments, an outer side surface of the thermal protection shell at the projectile body window is provided with the high temperature impact resistant surface layer, this is not a limitation on the location of the high temperature impact resistant surface layer, for example, in other embodiments, four side surfaces of the outer periphery of the thermal protection shell are provided with the high temperature impact resistant surface layers, as long as the outer side surface of the thermal protection shell at the projectile body window is provided with the high temperature impact resistant surface layers.
It will also be appreciated that although in the above embodiments the second insulating layer is provided on the side of the upper end cap facing the wave-transparent inner shell, this is not a limitation on the location where the second insulating layer is provided, for example, in other embodiments the second insulating layer is provided on the side of the upper end cap facing away from the wave-transparent inner shell. It should be noted that: when the temperature of the use environment of the upper end cover reaches above 260 ℃, the second heat insulation layer is required to be arranged on one side face, far away from the wave-transparent inner shell, of the upper end cover; when the temperature of the use environment of the upper end cover is below 260 ℃, the second heat insulation layer can be arranged on one side surface, facing the wave-transparent inner shell, of the upper end cover, and can also be arranged on one side surface, far away from the wave-transparent inner shell, of the upper end cover.
It will also be appreciated that although the second insulating layer is disposed on the side of the upper end cover facing the wave-transparent inner shell in the above embodiment, this is not a limitation on the location of the second insulating layer, and in other embodiments, the upper end cover, the second insulating layer, and the second wave-transparent inner shell may be sequentially disposed, and the second wave-transparent inner shell is made of fiber-reinforced resin material.
It will also be appreciated that although in the above embodiments the outer skin base panel and the outer skin side panel of the thermal protective outer skin are integrally formed and the inner skin base panel and the inner skin side panel of the wave-transparent inner skin are integrally formed, this is not the only way of forming the outer skin base panel and the outer skin side panel, and the inner skin base panel and the inner skin side panel, for example, in other embodiments the outer skin base panel and the outer skin side panel are formed separately and then fixedly connected together and the inner skin base panel and the inner skin side panel are formed separately and then fixedly connected together.
It will also be appreciated that although in the above embodiments the thermal protective casing is a shell of fibre reinforced resin material, in the fibre reinforced resin material the fibre material is quartz fibre and the resin is cyanate ester resin. However, this is not a limitation on the thermal protective shell, and in other embodiments, the thermal protective shell is a ceramic material; or the thermal protection shell is a fiber reinforced resin material shell, wherein in the fiber reinforced resin material, the fiber material is glass fiber, and the resin is any one of cyanate ester resin, phenolic resin, polyimide resin and epoxy resin; or the thermal protection shell is a fiber reinforced resin material shell, wherein in the fiber reinforced resin material, the fiber material is quartz fiber, and the resin is any one of phenolic resin, polyimide resin and epoxy resin.
It will also be appreciated that although in the above embodiments, the wave-transmitting inner shell and the upper end cap are both made of fiber-reinforced resin material, in which the fiber material is quartz fiber and the resin is cyanate ester resin, this is not a limitation to the wave-transmitting inner shell and the upper end cap, in other embodiments, the wave-transmitting inner shell and the upper end cap are both made of fiber-reinforced resin material, in which the fiber material is glass fiber and the resin is any one of cyanate ester resin, phenolic resin, polyimide resin and epoxy resin; or the wave-transparent inner shell and the upper end cover are both fiber reinforced resin material shells, in the fiber reinforced resin material, the fiber material is quartz fiber, and the resin is any one of phenolic resin, polyimide resin and epoxy resin.
It will also be appreciated that although in the above embodiments the second insulating layer is a glass fibre reinforced aerogel blanket layer, this is not a limitation of the second insulating layer, for example, in other embodiments the second insulating layer is a thermal buffer coating which is an aerogel coating layer or a two-component silicone rubber layer.
It is also to be understood that, although in the above-described embodiments, the first and second thermal insulation layers are glass fiber reinforced aerogel felt layers, this is not a limitation of the first and second thermal insulation layers, for example, in other embodiments, the first and second thermal insulation layers are any one of quartz fiber reinforced aerogel felt layers, aluminum silicate fiber reinforced aerogel felt layers, high silica reinforced aerogel layers, alumina fiber reinforced aerogel felt layers, boron nitride fiber reinforced aerogel felt layers, silicon nitride fiber reinforced aerogel felt layers, and boron silicon nitride fiber reinforced aerogel felt layers.
It will also be appreciated that although in the above embodiments the ceramic facing is a quartz ceramic matrix composite layer, this is not a limitation of the ceramic facing, for example, in other embodiments the ceramic facing is an alumina-based composite layer or a reinforced nitride ceramic composite layer.
It will also be appreciated that although in the above embodiments the insulating facing is a silica fiber reinforced aerogel blanket, this is not a limitation of the insulating facing, for example, in other embodiments the insulating facing is any one of a high silica fiber reinforced aerogel blanket, an alumina silicate fiber reinforced aerogel blanket, an alumina fiber reinforced aerogel blanket, a boron nitride fiber reinforced aerogel blanket, a silicon nitride fiber reinforced aerogel blanket, and a silicon boron nitride fiber reinforced aerogel blanket.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an antenna separates heat exchanger, its characterized in that, includes hot protective housing, wave-transparent inner shell and upper end cover, wave-transparent inner shell set up in the hot protective housing, just wave-transparent inner shell with be provided with first insulating layer between the hot protective housing, the upper end cover with wave-transparent inner shell is connected, just one side that the upper end cover orientation wave-transparent inner shell or kept away from wave-transparent inner shell is provided with the second insulating layer, a lateral surface that is located projectile window department on the hot protective housing at least is provided with high temperature resistant impact surface course.
2. The antenna heat shield of claim 1, wherein the high temperature impact resistant facing comprises a ceramic facing and a thermal insulation facing, the thermal insulation facing disposed between the ceramic facing and the thermal protective enclosure.
3. The antenna heat shield of claim 2, wherein the high temperature impact resistant facing is coupled to the thermal shield shell by a coupling.
4. The antenna heat shield of claim 3, wherein the thermal protection enclosure comprises an enclosure bottom plate and enclosure side plates, the enclosure bottom plate extends outside the enclosure side plates to form mounting surfaces, the mounting surfaces are provided with mounting holes, and the enclosure bottom plate and the enclosure side plates are integrally formed.
5. The antenna heat shield of claim 4, wherein the wave-transparent inner shell comprises an inner shell bottom plate and an inner shell side plate, the inner shell bottom plate and the inner shell side plate are integrally formed, and the inner shell side plate and the upper end cover are connected through a connecting piece.
6. The antenna heat shield of claim 5, wherein said first insulating layer is a fiber reinforced aerogel blanket layer, said first insulating layer being surrounded by an encapsulation layer.
7. The antenna heat shield of claim 6, wherein the second thermal insulation layer is a fiber reinforced aerogel blanket or thermal buffer coating, and the thermal buffer coating is an aerogel coating layer or a two-component silicone rubber layer.
8. The antenna heat shield of any of claims 2-7, wherein the ceramic facing is a quartz ceramic matrix composite layer and the thermal insulating facing is a quartz fiber reinforced aerogel blanket layer.
9. The antenna heat shield of any of claims 1-7, wherein the outer thermal shield shell, the wave-transparent inner shell, and the upper end cap are fiber reinforced resin materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330535.4U CN218788505U (en) | 2022-12-13 | 2022-12-13 | Antenna heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330535.4U CN218788505U (en) | 2022-12-13 | 2022-12-13 | Antenna heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218788505U true CN218788505U (en) | 2023-04-04 |
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ID=86503363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223330535.4U Active CN218788505U (en) | 2022-12-13 | 2022-12-13 | Antenna heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218788505U (en) |
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2022
- 2022-12-13 CN CN202223330535.4U patent/CN218788505U/en active Active
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