Lightweight case structure based on ARINC600 standard

Abstract

The utility model relates to the field of airborne electronic equipment, and relates to a lightweight chassis structure based on an ARINC600 standard. Comprising a case, a printed board plugging device, a first module, a second module, a wedge-shaped locking device, a support column A, a bracket A, an ARIINC600 connector, an adapter plate, a back plate and a support column B, the light-weight case structure is manufactured by milling a high-strength aluminum material, is flexible in structure and high in adaptability, can be processed into structural characteristics of different shapes according to the structural characteristics of installation components and parts to be installed, increases electromagnetic shielding design and three-proofing design of the case, has relatively high environmental adaptability and electromagnetic compatibility, and is suitable for popularization and application. Meanwhile, the structure is simple, appearance is attractive, strength is good, and installation and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of airborne electronic equipment, and specifically to a lightweight chassis structure based on the ARINC600 standard. Background Technology

[0002] The ARINC 600 standard has always been an advanced design standard in the civil aircraft field. Airborne electronic equipment designed in accordance with this standard has been widely installed on advanced civil aircraft such as Boeing's B737, B747, B757, B767 and B777.

[0003] Lightweight design of airborne electronic equipment is of great significance in the civil aviation field, as it can not only improve fuel efficiency, reduce emissions, and enhance performance, but also improve safety. With the increasing complexity of airborne electronic equipment functions, lightweight chassis design that meets the ARINC 600 specification for MCU size series faces significant challenges. Utility Model Content

[0004] Utility Model Purpose

[0005] This invention provides a lightweight chassis structure based on the ARINC600 standard to address the problems mentioned in the background section. The lightweight chassis structure, with an external dimension of 2MCU, is manufactured from high-strength aluminum material through milling. It features a flexible and adaptable structure, allowing for customization to accommodate different component shapes. Furthermore, it incorporates electromagnetic shielding and tri-proof design, resulting in strong environmental adaptability and electromagnetic compatibility. The chassis is also simple in structure, aesthetically pleasing, strong, and easy to install and maintain.

[0006] Technical solution

[0007] A lightweight chassis structure based on the ARINC600 standard includes a chassis (1), a printed circuit board plug-in device (2), a first module (3), a second module (4), a wedge locking device (5), a support A (6), a bracket A (7), an ARINC600 connector (8), an adapter board (10), a backplate (11), and a support B (13).

[0008] The chassis (1) is assembled from a top cover (101), a right side panel (102), a rear panel (103), a bottom panel (104), a left side panel (105), and a front panel (106). One side of the ARIINC600 connector (8) is connected to one side of the adapter plate (10) via bracket A (7). The other side of the adapter plate (10) is connected to the back panel (11) via support column A (6) and support column B (13). The other side of the ARIINC600 connector (8) is connected to the rear panel (103) via screws and nuts. First module (3) Riveted to the printed circuit board plug-in device (2), the first module (3) is pushed into the chassis (1) along the guide grooves on the upper cover plate (101) and the bottom plate (104) respectively, and the plug on the first module (3) needs to be inserted into the socket on the back plate (11) to complete the insertion; the wedge locking device (5) is set on the first module (3), and the first module (3) is fixed to the chassis (1) by rotating the wedge locking device (5); the second module (4) is installed in the same way as the first module (3), and the chassis (1) is provided with a weight reduction groove.

[0009] Furthermore, it also includes a handle (107) which is located on the rear panel (103) for easy installation on the equipment rack of the aircraft and for easy carrying.

[0010] Furthermore, it also includes a locking hook (108), which is disposed on the rear panel (103) for fixing and engaging with a locking device on the aircraft.

[0011] Furthermore, the wedge-shaped locking device (5) consists of two units, symmetrically arranged on the first module (3).

[0012] Furthermore, of the symmetrically arranged wedge-shaped locking devices (5), one wedge-shaped locking device (5) locks with the upper cover plate (101), and the other wedge-shaped locking device (5) locks with the bottom plate (104).

[0013] Furthermore, the number of the first module (3) or the second module (4) is determined according to the usage requirements, and the number of the first module (3) or the second module (4) should correspond one-to-one with the number of guide slots.

[0014] Furthermore, the shape of the support column A (6) and support column B (13) should be adapted to the corresponding mounting holes on the adapter plate (10) and back plate (11).

[0015] Furthermore, the top cover (101), right side panel (102), rear panel (103), bottom panel (104), left side panel (105), and front panel (106) are manufactured by milling from high-strength aluminum material and undergo conductive oxidation treatment according to MIL-DTL-5541 standard.

[0016] Furthermore, the outer surfaces of the top cover (101), right side panel (102), rear panel (103), bottom panel (104), left side panel (105), and front panel (106) are all coated with anti-corrosion epoxy primer and weather-resistant polyurethane matte enamel paint.

[0017] The beneficial effects of this application are as follows:

[0018] With its flexible structure and strong adaptability, it can be processed into different shapes according to the structural characteristics of the components to be installed. The chassis can be milled into thin plates and reinforced with ribs to enhance overall rigidity and reduce weight. It is made of high-strength aluminum material through milling and undergoes conductive oxidation treatment. The outer surface of the chassis is coated with anti-corrosion epoxy primer and weather-resistant polyurethane matte enamel paint to enhance the chassis's three-proof capabilities. It also has strong environmental adaptability and electromagnetic compatibility, and can work in complex environments and harsh conditions, improving the reliability and adaptability of electronic equipment. At the same time, it has a simple structure, beautiful appearance, good strength, and is convenient for installation and maintenance. Attached Figure Description

[0019] Figure 1 This is an exploded view showing the installation of various modules and components in the 2MCU chassis of this utility model;

[0020] Figure 2 This is an exploded view of the chassis itself.

[0021] Figure 3 This is a diagram of the complete chassis assembly. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be described in more detail below with reference to the embodiments of this utility model. In the examples, the same or similar reference numerals denote the same or similar components or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the embodiments are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will be described in detail below with reference to their specific implementation.

[0023] Please see Figure 1-3This utility model provides a technical solution: a lightweight chassis structure based on the ARINC600 standard, including a chassis (1), a printed circuit board plug-in device (2), a module, a wedge locking device (5), a support A (6), a bracket A (7), an ARIINC600 connector (8), a bracket A (7), an adapter plate (10), a back plate (11), a bracket A (7), and a support B (13), etc., wherein the module has a first module (3) and a second module (4). The module is inserted into the chassis frame through a guide groove, connected to the back plate (11), and locked and fixed by the wedge locking device (4) on the module.

[0024] The chassis (1) has a top cover (101), a right side panel (102), a rear panel (103), a bottom panel (104), a left side panel (105), and a front panel (106). The top cover (101), right side panel (102), bottom panel (104), and left side panel (105) are connected by screws to form a chassis frame. The front panel (106) and rear panel (103) are connected to the chassis frame by screws.

[0025] The front panel (106) is provided with a handle (107) and a locking hook (108), which are fixed to the front panel (106) by screws.

[0026] The adapter plate (10) is connected to the ARIINC600 connector (8) via bracket A (7), bracket A (7), bracket A (7).

[0027] The adapter plate (10) and the back plate (11) are connected by support column A (6) and support column B (13).

[0028] The ARIINC600 connector (8) is fixed to the rear panel (103) by screws and nuts.

[0029] The rear panel (103) is connected to the upper cover plate (101), the right side plate (102), the bottom plate (104), and the left side plate (105) by screws.

[0030] The first module (3) and the second module (4) are pushed into the chassis from front to back along the guide grooves of the upper cover plate (101) and the bottom plate (104) until the plug on the module is inserted into the socket on the back plate (9). Tighten the screws of the wedge locking device (4) on the module to fix the module in the guide groove.

[0031] The front panel (106) is connected to the top cover (101), right side panel (102), bottom panel (104), and left side panel (105) by screws.

[0032] It is worth noting that this utility model is based on the ARINC600 natural heat dissipation chassis, which can be expanded into different specifications according to its size. Its dimensions are: length: 318mm, width: 57.2mm, height: 194mm. The chassis structure of this utility model can also be expanded into 3MCU and 4MCU chassis forms, with the chassis width increasing to 90.4mm and 124mm respectively.

[0033] This utility model provides a lightweight chassis structure based on the ARINC600 standard, which consists of a front panel, a rear panel, a left side panel, a right side panel, a top cover, a bottom plate, locking hooks, pillars, and brackets. The top cover, bottom plate, left side panel, and right side panel are connected by screws to form a chassis frame, and the front panel and rear panel are connected to the frame by screws. The front panel, rear panel, left side panel, right side panel, top cover, and bottom plate are all milled from high-strength aluminum material.

[0034] The front panel is provided with a handle and a locking hook, which are connected to the front panel by screws.

[0035] The front panel, rear panel, left side panel, right side panel, top cover, and bottom panel are all subjected to conductive oxidation treatment in accordance with the MIL-DTL-5541 standard. The purpose is to ensure that the overall lap resistance of the chassis is less than 1 milliohm, so that there is a reliable electrical connection with low impedance path between the chassis and the bracket, and between the bracket and the aircraft structure. This prevents electromagnetic interference levels between them, provides a power current return path, and is also a necessary measure for protection against electric shock, electrostatic discharge, and lightning.

[0036] The outer surfaces of the front panel, rear panel, left side panel, right side panel, top cover, and bottom panel are all coated with anti-corrosion epoxy primer and weather-resistant polyurethane matte enamel paint.

[0037] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein. The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this invention. It should be understood that the above descriptions are merely specific embodiments of this invention and are not intended to limit this invention. Within the spirit and principles of this invention, any person skilled in the art may modify or alter the disclosed technical content to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, alterations, modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this invention without departing from the content of the technical solution of this invention should be included within the protection scope of this invention.

Claims

1. A lightweight chassis structure based on the ARINC600 standard, characterized in that, Includes chassis, PCB plug-in connector, first module, second module, wedge locking device, support A, bracket A, ARIINC600 connector, adapter board, backplate, and support B; The chassis is assembled from a top cover, a right side panel, a rear panel, a bottom panel, a left side panel, and a front panel. One side of the ARIINC600 connector is connected to one side of the adapter plate via bracket A. The other side of the adapter plate is connected to the back panel via support pillars A and B. The other side of the ARIINC600 connector is connected to the rear panel via screws and nuts. The first module is riveted to the printed circuit board inserter. The first module is pushed into the chassis along the guide grooves on the top cover and bottom panel, and the plug on the first module needs to be inserted into the socket on the back panel to complete the mating. The wedge locking device is set on the first module. Rotating the wedge locking device fixes the first module to the chassis. The second module is installed in the same way as the first module. The chassis is provided with a weight reduction groove.

2. The chassis structure as described in claim 1, characterized in that, It also includes a handle, which is located on the rear panel for easy installation on the aircraft equipment rack and for easy carrying.

3. The chassis structure as described in claim 1, characterized in that, It also includes a locking hook, which is disposed on the rear panel for securing with a locking device on the aircraft.

4. The chassis structure as described in claim 1, characterized in that, Specifically, there are two wedge-shaped locking devices, symmetrically arranged on the first module.

5. The chassis structure as described in claim 4, characterized in that, The symmetrically arranged wedge-shaped locking devices are configured such that one wedge-shaped locking device locks with the upper cover plate, and the other wedge-shaped locking device locks with the bottom plate.

6. The chassis structure as described in claim 1, characterized in that, The number of the first module or the second module is determined according to the usage requirements, and the number of the first module or the second module should correspond one-to-one with the number of guide slots.

7. The chassis structure as described in claim 1, characterized in that, The shapes of the support columns A and B should be compatible with the corresponding mounting holes on the adapter plate and back plate.

8. The chassis structure as described in claim 1, characterized in that, The top cover, right side panel, rear panel, bottom panel, left side panel, and front panel are made of high-strength aluminum material and are subjected to conductive oxidation treatment in accordance with MIL-DTL-5541 standard.

9. The chassis structure as described in claim 1, characterized in that, The outer surfaces of the top cover, right side panel, rear panel, bottom panel, left side panel, and front panel are all coated with anti-corrosion epoxy primer and weather-resistant polyurethane matte enamel paint.

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