A high temperature environment aviation chassis

Abstract

The utility model discloses an aviation case for a high-temperature environment, comprising a main case body and an end cover, wherein the bottom of the main case body is an open side, and the end cover is detachably mounted on the open side of the main case body; several layers of connected wall circulation channels are arranged around the main case body; an S-shaped upper circulation channel is provided at the upper part of the main case body; an S-shaped lower circulation channel is provided on the end cover, and a circulating cooling channel with an inlet and an outlet is formed after the lower circulation channel, the wall circulation channel and the upper circulation channel are connected; the utility model has a reasonable design and a reasonable heat dissipation channel, can be used in a high-temperature environment (such as at an ambient temperature of 350°C), can be heat-insulated and dissipate heat for internal components under the injection of a cold source, and ensures that the internal components can maintain good operation under extreme working conditions (such as at an ambient temperature of 350°C).

Description

Technical Field

[0001] The utility model relates to an aviation case, in particular to an aviation case for a high temperature environment. Background Art

[0002] Aviation chassis is a common equipment in aircraft. Due to the harsh working environment, it has high requirements, especially for high temperature environments (such as 350℃ ambient temperature). Traditional chassis have poor heat dissipation capacity and mostly use welded flow channels for multi-sided liquid flow structures, which have poor reliability and maintainability. Utility Model Content

[0003] Therefore, in order to solve the above-mentioned deficiencies, the utility model provides a chassis with a reasonable design and a reasonable heat dissipation channel, which can be used in a high temperature environment (such as an ambient temperature of 350°C). The utility model can insulate and dissipate heat for internal components under the injection of a cold source, thereby ensuring that the internal components can maintain good working conditions under extreme working conditions (such as an ambient temperature of 350°C).

[0004] Specifically, a high temperature environment aviation chassis comprises a main box body and an end cover, wherein the bottom of the main box body is an open side, and the end cover is detachably mounted on the open side of the main box body;

[0005] The main box body is provided with several layers of interconnected wall circulation channels around it;

[0006] An S-shaped upper circulation channel is provided on the upper part of the main box;

[0007] The end cover is provided with an S-shaped lower circulation channel, and the lower circulation channel, the wall circulation channel and the upper circulation channel are connected to form a circulation cooling channel with an inlet and an outlet.

[0008] Optionally, the end cover is installed on the main box body through a quick plug-in, and the quick plug-in connects the upper circulation channel with the lower circulation channel.

[0009] Optionally, the quick-insertion device includes a first insert tube and a second insert tube, and the second insert tube is inserted into the first insert tube;

[0010] The first insert pipe is fixed to the main box and communicates with the upper circulation channel;

[0011] The second insert pipe is fixed to the end cover and communicated with the lower circulation channel of the end cover.

[0012] Optionally, the lower circulation channel and the upper circulation channel are arranged in a staggered manner.

[0013] Optionally, the inlet and outlet of the circulating cooling channel are opened at the upper part of the main box body, a cold source inlet joint is installed at the inlet, and a cold source discharge joint is installed at the outlet.

[0014] Optionally, the main box body includes a chassis body and an upper cover body, the upper cover body is fixedly installed on the chassis body, the upper circulation channel is opened on the upper cover body, and the cold source inlet joint and the cold source exhaust joint are installed on the upper cover body.

[0015] Optionally, the chassis body, end cover and upper cover are made of titanium alloy, wherein the chassis body is formed using 3D printing technology.

[0016] Optionally, a heat insulation component is laid on the upper cover body and / or the end cover.

[0017] The utility model has the following advantages:

[0018] The utility model has a reasonable design and specifically solves the heat insulation of the chassis and the heat dissipation of internal components at an ambient temperature of 350°C, ensuring that the internal components can maintain good operation under extreme working conditions (highest ambient temperature, maximum controller power). The maximum temperature of all module boards does not exceed 115°C, and the materials of all structural parts should be able to work for a long time at the maximum temperature, with a working life of not less than 15 years. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0021] Figure 3 It is a three-dimensional schematic diagram of the main box body of the utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the chassis main body of the utility model;

[0023] Figure 5 It is a front view schematic diagram of the chassis main body of the utility model;

[0024] Figure 6 yes Figure 5 The AA section is a schematic diagram;

[0025] Figure 7 yes Figure 5 Schematic diagram of the middle BB section;

[0026] Figure 8 This is a schematic diagram of the utility model after the chassis main body is disassembled;

[0027] Fig. 9 This is a schematic diagram of another viewing angle of the utility model after the chassis main body is disassembled;

[0028] Fig.10It is a three-dimensional schematic diagram of the upper cover body of the utility model;

[0029] Fig.11 It is a three-dimensional schematic diagram of the end cover of the utility model;

[0030] Fig.12 It is a schematic diagram of the end cover of the utility model showing the lower circulation channel;

[0031] Fig.13 It is a structural schematic diagram of the quick plug-in unit of the utility model;

[0032] In the figure: 100, main box body; 101, chassis body; 1011, wall circulation channel; 102, upper cover body; 1021, upper circulation channel; 200, end cover; 201, lower circulation channel; 300, quick plug; 301, first plug pipe; 302, second plug pipe; 400, cold source discharge joint; 500, cold source inlet joint. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0034] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so 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 inherent to such process, method, article, or apparatus.

[0035] As described in the background technology, aviation chassis is a common equipment in aircraft. Due to the harsh working environment, high requirements are imposed, especially for high temperature environments (such as 350°C ambient temperature). Traditional chassis have poor heat dissipation capabilities and mostly use welded flow channels for multi-sided liquid flow structures, which have poor reliability and maintainability.

[0036] Based on the above reasons, this embodiment provides a high-temperature environment aviation chassis, which specifically solves the problem of an aviation chassis structure that meets various environmental requirements in a 350° high-temperature environment.

[0037] The operating environment conditions of the aviation chassis are as follows:

[0038] a) Long-term working temperature: (-55~+350)℃;

[0039] b) Cooling method: fuel liquid cooling;

[0040] c) Cooling medium: No. 3 aviation kerosene, temperature not exceeding 75°C;

[0041] d) Maximum temperature change rate: 20℃ / s;

[0042] e) Working environment pressure: (2.55~230) kPa;

[0043] f) Working environment pressure change rate: 10kPa / min.

[0044] g) Storage environment temperature: (-55~+71)℃;

[0045] Specifically, a high temperature environment aviation chassis includes a main box body 100 and an end cover 200, wherein the bottom of the main box body 100 is an open side, and the end cover 200 is detachably mounted on the open side of the main box body 100;

[0046] The main box body 100 is provided with several layers of interconnected wall circulation channels 1011;

[0047] An S-shaped upper circulation channel 1021 is provided at the upper portion of the main box body;

[0048] The end cover is provided with an S-shaped lower circulation channel 201 , and the lower circulation channel 201 , the wall circulation channel 1011 and the upper circulation channel 1021 are connected to form a circulation cooling channel with an inlet and an outlet.

[0049] The above technical features can insulate and dissipate heat for internal components under the injection of cold sources. Cooling channels are opened on the six sides, and the heat dissipation effect is good, which can ensure that the internal components can maintain good working conditions under extreme working conditions (such as 350°C ambient temperature).

[0050] In order to facilitate the quick connection between the end cover and the main box body and realize the connectivity of the circulation channel; in one embodiment, the end cover 200 is installed on the main box body 100 through a quick plug-in unit 300, and the quick plug-in unit 300 connects the upper circulation channel with the lower circulation channel.

[0051] The quick-insertion device includes a first insert tube 301 and a second insert tube 302, wherein the second insert tube is inserted into the first insert tube;

[0052] The first insert pipe 301 is fixed to the main box 100 and communicates with the upper circulation channel 1021;

[0053] The second insert pipe 302 is fixed to the end cover 200 and communicates with the lower circulation channel 201 of the end cover 200 .

[0054] In order to improve the heat dissipation effect, Figure 8-Figure 10 and Fig.12 As shown, in one embodiment, the lower circulation channel 201 and the upper circulation channel 1021 are arranged in a staggered manner.

[0055] In order to facilitate the access of the cold source, in one embodiment, the inlet and outlet of the circulating cooling channel are opened at the upper part of the main box body 100, a cold source inlet connector 500 is installed at the inlet, and a cold source outlet connector 400 is installed at the outlet.

[0056] For the processing and installation of the main box body, in one embodiment, the main box body 100 includes a chassis body 101 and an upper cover body 102, the upper cover body 102 is fixedly installed on the chassis body 101, the upper circulation channel 1021 is opened on the upper cover body 102, and the cold source inlet joint 500 and the cold source outlet joint 400 are installed on the upper cover body 102; the chassis body, end cover and upper cover body are high-temperature alloys (such as titanium alloy), and the chassis body is formed by 3D printing technology.

[0057] In order to reduce the influence of the external temperature on the heat dissipation effect, in one embodiment, a heat insulation component is laid on the upper cover body and / or the end cover.

[0058] The high-temperature environment aviation chassis is reasonably designed to specifically solve the problems of chassis insulation and heat dissipation of internal components at an ambient temperature of 350°C, ensuring that internal components can maintain good operation under extreme working conditions (highest ambient temperature, maximum controller power). The maximum temperature of all module boards does not exceed 115°C, and all structural parts should be able to work for a long time at the maximum temperature, with a service life of not less than 15 years.

[0059] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high temperature environment aviation chassis, characterized in that: It comprises a main box body and an end cover, wherein the bottom of the main box body is an open side, and the end cover is detachably mounted on the open side of the main box body; The main box body is provided with several layers of interconnected wall circulation channels around it; An S-shaped upper circulation channel is provided on the upper part of the main box; The end cover is provided with an S-shaped lower circulation channel, and the lower circulation channel, the wall circulation channel and the upper circulation channel are connected to form a circulation cooling channel with an inlet and an outlet.

2. The high temperature environment aviation chassis according to claim 1, characterized in that: The end cover is installed on the main box body through a quick plug-in, and the quick plug-in connects the upper circulation channel with the lower circulation channel.

3. The high temperature environment aviation chassis according to claim 2, characterized in that: The quick-insertion device comprises a first insert tube and a second insert tube, wherein the second insert tube is inserted into the first insert tube; The first insert pipe is fixed to the main box and communicates with the upper circulation channel; The second insert pipe is fixed to the end cover and communicated with the lower circulation channel of the end cover.

4. The high temperature environment aviation chassis according to claim 1, characterized in that: The lower circulation channel and the upper circulation channel are arranged in a staggered manner.

5. The high temperature environment aviation chassis according to claim 1, characterized in that: The inlet and outlet of the circulating cooling channel are opened at the upper part of the main box body, a cold source inlet joint is installed at the inlet, and a cold source discharge joint is installed at the outlet.

6. The high temperature environment aviation chassis according to claim 5, characterized in that: The main box body includes a chassis body and an upper cover body, the upper cover body is fixedly installed on the chassis body, the upper circulation channel is opened on the upper cover body, and the cold source inlet joint and the cold source outlet joint are installed on the upper cover body.

7. The high temperature environment aviation chassis according to claim 6, characterized in that: The chassis body, end cover and upper cover are made of high-temperature alloy, wherein the chassis body is formed by 3D printing technology.

8. The high temperature environment aviation chassis according to claim 6, characterized in that: A heat insulation component is laid on the upper cover body and / or the end cover.

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