CN219740897U

CN219740897U - Airborne display

Info

Publication number: CN219740897U
Application number: CN202321148941.0U
Authority: CN
Inventors: 陆爱春; 胡亮; 杨信田
Original assignee: Suzhou Changfeng Aviation Electronics Co Ltd
Current assignee: Suzhou Changfeng Aviation Electronics Co Ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-09-22
Anticipated expiration: 2033-05-12

Abstract

The utility model belongs to the technical field of airborne display equipment, and particularly relates to an airborne display, which adopts a base frame as an intermediate structural member, a liquid crystal display module and a light guide plate are arranged as head components, a middle cover plate and a rear cover plate are arranged as tail components, and two groups of video processing modules and two groups of ARINC818 modules are installed based on a simple and efficient structure, so that the data processing capacity of the airborne display is improved on the basis of not increasing the whole volume. The utility model can improve the working efficiency of the onboard display and simultaneously can meet the heat dissipation requirement based on the structural change.

Description

Airborne display

Technical Field

The utility model belongs to the technical field of airborne display equipment, and particularly relates to an airborne display.

Background

The on-board display is applied to an on-board cabin and a mission cabin as man-machine interaction interfaces for displaying and controlling on-board equipment.

The existing airborne display has limited working efficiency because the number of functional elements participating in data operation is limited due to the limitation of size and heat dissipation.

Disclosure of Invention

In view of this, the present utility model provides an airborne display, which uses a frame as an intermediate structural member, sets a liquid crystal display module and a light guide plate as a head assembly, sets a middle cover plate and a rear cover plate as a tail assembly, and installs two sets of video processing modules and two sets of ARINC818 modules based on a compact and efficient structure, thereby increasing the data processing capability of the airborne display without increasing the overall volume. The utility model can improve the working efficiency of the onboard display and simultaneously can meet the heat dissipation requirement based on the structural change.

In order to achieve the technical purpose, the utility model adopts the following specific technical scheme:

an on-board display, comprising:

a base frame provided as a frame structure;

the liquid crystal display module is buckled and installed at one end face of the frame space of the base frame;

the light guide plate is fixedly arranged at the edge of the display surface of the liquid crystal display module;

the display control module is in a plate shape and is arranged on one side of the base frame far away from the liquid crystal display module and is parallel to the liquid crystal display module;

the middle cover plate is in a plate shape, is buckled and installed at one end face of the base frame far away from the liquid crystal display module, is arranged in parallel with the display control module, and is provided with two groups of video processing modules and two groups of ARINC818 modules at one end close to the display control module;

the rear cover plate is arranged in a shell shape with one end open, is buckled at one end of the middle cover plate far away from the display control module, and is provided with a heat dissipation device;

wherein: each video processing module and each ARINC818 module are respectively installed on the middle cover plate based on one heat dissipation cover plate; the video processing module, the ARINC818 module and the display control module are connected in a plug-in mode based on a connector.

Further, a hollowed-out area is formed in the middle cover plate, and each heat dissipation cover plate is installed at the hollowed-out area.

Further, the heat dissipation cover plate for installing the ARINC818 module includes a cover plate main body, a heat conduction column and a heat dissipation air duct; the cover plate main body and the rear cover plate are fixedly arranged; the heat conduction column is arranged at one end of the cover plate main body, which is close to the display control module, and is positioned between the ARINC818 module and the cover plate main body; the heat dissipation air duct is arranged at one end of the cover plate main body, which is far away from the display control module.

Further, the area of the rear cover plate, which is buckled at the middle cover plate, is smaller than the area of the middle cover plate; the back cover plate is snapped onto the heat sink cover plate for mounting the ARINC818 module.

Further, the video processing module and the ARINC818 module are both configured in a plate shape.

Further, the area of the cover plate main body is larger than that of the installed hollowed-out area; the area of the cover plate main body is larger than that of the installed video processing module or ARINC818 module; the cover plate main body is arranged on one side of the middle cover plate, which is close to the rear cover plate.

Further, the heat dissipation device is a heat dissipation fan; the heat dissipation fan is close to or attached to the heat dissipation air duct.

By adopting the technical scheme, the utility model can also bring the following beneficial effects:

the video processing module and the ARINC818 module are connected with the display control module in an opposite-plug mode based on the connector, so that the video processing module is compact in structure and convenient to assemble and disassemble;

the video processing module and the ARINC818 module are installed on the hollow middle cover plate, and can be directly installed and detached from the back surface of the middle cover plate, so that the maintainability design of a product is improved, and meanwhile, heat is directly transferred to the middle cover plate through conduction, and then the heat is transferred to the outer surface of the shell, so that a good heat dissipation effect is achieved.

The utility model separately sets the air duct and the back cover plate for the ARINC818 module with serious heat generation, thereby ensuring the heat dissipation efficiency and ensuring the more compact structure of the airborne display.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is an exploded view of an on-board display in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating the installation of a video processing module, ARINC818 module, and a heat sink cover plate according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a heat dissipating cover plate with an air duct according to an embodiment of the present utility model;

wherein: 1. a base frame; 2. a light guide plate; 3. a liquid crystal display module; 4. a display control module; 5. a middle cover plate; 6. a video processing module; 7. an ARINC818 module; 8. a connector; 9. a back cover plate; 10. a heat-dissipating cover plate; 11. a heat dissipation air duct; 12. and a power supply conversion module.

Detailed Description

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

In one embodiment of the present utility model, an on-board display is presented, as shown in FIGS. 1-3, comprising:

a base frame 1 provided in a frame structure;

the liquid crystal display module 3 is buckled and installed at one end face of the frame space of the base frame 1;

a light guide plate 2 fixedly installed at an edge of a display surface of the liquid crystal display module 3;

the display control module 4 is plate-shaped and is arranged on one side of the base frame 1 far away from the liquid crystal display module 3 and is parallel to the liquid crystal display module 3;

the middle cover plate 5 is in a plate shape, is buckled and installed at one end face of the base frame 1 far away from the liquid crystal display module 3, is arranged in parallel with the display control module 4, and is provided with two groups of video processing modules 6 and two groups of ARINC818 modules 7 at one end close to the display control module 4;

the rear cover plate 9 is provided with a shell with an opening at one end, is buckled at one end of the middle cover plate 5 far away from the display control module 4, and is provided with a heat dissipation device;

wherein: each video processing module 6 and each ARINC818 module 7 are respectively installed on the middle cover plate 5 based on one heat dissipation cover plate 10; the video processing module 6 and the ARINC818 module 7 are connected with the display control module 4 in a plug-in way based on the connector 8.

In this embodiment, the middle cover plate 5 is provided with a hollow area, and each heat dissipating cover plate 10 is installed at the hollow area.

In the present embodiment, the heat dissipation cover 10 for mounting the ARINC818 module 7 includes a cover main body, a heat conduction post, and a heat dissipation air duct 11; the cover plate main body is fixedly arranged with the rear cover plate 9; the heat conduction column is arranged at one end of the cover plate main body, which is close to the display control module 4, and is positioned between the ARINC818 module 7 and the cover plate main body; the heat dissipation air duct 11 is disposed at one end of the cover plate body away from the display control module 4.

In the present embodiment, the area of the back cover plate 9 where the middle cover plate 5 is fastened is smaller than the area of the middle cover plate 5; the back cover plate 9 is snapped onto the heat sink cover plate 10 for mounting the ARINC818 module 7.

In the present embodiment, the video processing module 6 and the ARINC818 module 7 are both provided in a plate shape.

In this embodiment, the area of the cover plate main body is larger than the area of the installed hollowed-out area; the area of the cover plate main body is larger than that of the installed video processing module 6 or ARINC818 module 7; the cover body is arranged on the side of the middle cover 5 close to the rear cover 9.

In this embodiment, the heat dissipating device is a heat dissipating fan; the heat radiation fan is disposed close to or in contact with the heat radiation air duct 11.

The liquid crystal display module 3 of the embodiment realizes a display function by a 24×9 inch liquid crystal screen, and combines a capacitive screen at the front end of the liquid crystal screen to realize a touch control function. Meanwhile, multifunctional keys and knobs are arranged on a panel of the airborne display, so that an input control function is realized.

The structural member of the base frame 1 in this embodiment is made of a metal aluminum plate, and the outer surface is painted and blackened, so that the emissivity of the radiating surface is increased, and the radiation radiating capability is improved. The main structural member base frame 1 and the liquid crystal screen are reinforced by adopting an integrated design, so that the liquid crystal screen reinforcement design meeting the airborne environment adaptability is completed, and the main structural member base frame is used as a main shell structural part of a product.

The light guide plate 2 of the airborne display is fixed on the structure of the base frame 1 through screws, and the light guide plate 2 and the liquid crystal display module 3 form a head assembly after being fixed.

The display control module 4 (DCM) is fixed on the structural member of the middle cover plate 5 through screws, and the power conversion module 12 is fixed on the middle cover plate 5 after being connected with the display control module 4 in an opposite-plug manner through the bent CRM series connector 8. The video processing module 6 and the ARINC818 sub-card are respectively provided with two blocks, are respectively attached to the heat dissipation cover plate 10, are respectively connected with the 4 modules in a plugging manner with the connectors 8 on the display control module 4 through the 4 mounting openings at the rear part of the middle cover plate 5, are fixed on the middle cover plate 5 through mounting screws, and form a rear assembly after the rear cover plate 9 is fixed with the middle cover plate 5. The single board of the ARINC818 daughter card has higher power consumption, heat is concentrated on an FPGA chip for realizing a core function, a heat dissipation air duct 11 is designed on a heat dissipation cover plate 10 for realizing good heat design, and 2 heat dissipation fans are arranged in structural parts of a rear cover plate 9.

After the head component and the rear component of the embodiment are inserted by the connector 8, the rear component is fixed on the base frame 1 by screws, and the structural installation of the whole machine of the airborne display is completed.

The video processing module 6 and the ARINC818 daughter card are directly installed and fixed on the middle cover plate 5, and the video processing module 6 and the ARINC818 daughter card on the middle cover plate 5 can be directly installed and detached from the back surface of the middle cover plate 5, so that the maintainability design of a product is improved, and meanwhile, heat is directly transferred to the middle cover plate 5 through conduction, and then is transferred to the outer surface of the shell, and a good heat dissipation effect is achieved.

In order to further optimize the grounding performance of the product on the aircraft, a grounding column is additionally arranged on the back of the product, so that the anti-interference performance of the product is enhanced.

The on-board display realizes a display function by a 24X 9 inch liquid crystal screen, and combines a capacitive screen at the front end of the liquid crystal screen to realize a touch function. Meanwhile, multifunctional keys and knobs are arranged on a panel of the airborne display, so that an input control function is realized.

The light guide plate 2 is provided with a multifunctional key, a knob, a brightness key, a power switch and a power state indicator lamp; the key and character illumination of the light guide plate 2 are realized through the illumination power supply of the light guide plate 2.

In this embodiment, the liquid crystal display module 3 includes a liquid crystal display component and a capacitive touch-sensitive component, where the liquid crystal display component receives LVDS video signals of the video communication module to display a picture, and communicates with the video communication module through RS 232; the front end of the liquid crystal screen is combined with the capacitive touch component to realize touch control.

The display control module 4 realizes the on-off control and the state memory storage, and realizes the state control of the indicator lamp and the power output control required by the functional module. The photoelectric conversion circuit on the display control module 4 realizes the conversion between the video optical signal and the video electric signal, and completes the switching of the video signal transmission link; the display control module 4 collects the states of peripheral keys and knobs, and reports the information of the multifunctional keys, the control states of the knobs and the like through an RS422 bus crosslinked with a display control processor (DPU); the display control module 4 realizes display screen brightness adjustment, working mode switching of the liquid crystal display module 3, state information acquisition and the like through an RS232 serial port.

The video processing module 6 receives the input 2 paths of DVI video signals, selects one path of DVI video signals according to the selection instruction, transmits the DVI video signals to the liquid crystal display for display after conversion, and simultaneously transmits the DVI video signals to the video recording equipment for recording. A VPM drives the half liquid crystal display, and the left and right sides are independent.

The ARINC818 daughter card converts the photoelectric converted ARINC818 electrical signal into a DVI signal to be transmitted to the VPM, and simultaneously converts the DVI recording video signal transmitted from the VPM into an ARINC818 signal to be transmitted to the video recording device.

The power conversion module 12 is used for converting 28VDC into 5V processor power, and providing independent work for the processors on the DCM to complete the on-off control of the product. The switching function of 28VDC to 28VDC backlight power, 5V main power and 5V fan power, and the power starting output is realized by a starting signal.

In use, the airborne display has the advantages of convenience and quickness in operation and good accessibility for the capacitive screen, and realizes single-point and multi-point control functions; the man-machine interaction input control function is realized through the self-defined multifunctional keys. The left-hand or right-hand function of the rotary encoder knob is mainly used for realizing effective area circulation selection, defined display picture switching, display interface enlargement/reduction, data input increase/reduction and the like.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the disclosure are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. An on-board display, comprising:

a base frame provided as a frame structure;

2. The on-board display of claim 1, wherein the middle cover plate is provided with a hollowed-out area, and each heat dissipation cover plate is installed at the hollowed-out area.

3. The on-board display of claim 2, wherein the heat sink cover for mounting the ARINC818 module comprises a cover body, a heat conductive post, and a heat sink air duct; the cover plate main body and the rear cover plate are fixedly arranged; the heat conduction column is arranged at one end of the cover plate main body, which is close to the display control module, and is positioned between the ARINC818 module and the cover plate main body; the heat dissipation air duct is arranged at one end of the cover plate main body, which is far away from the display control module.

4. The on-board display of claim 3, wherein an area of the back cover plate that is fastened at the middle cover plate is smaller than an area of the middle cover plate; the back cover plate is snapped onto the heat sink cover plate for mounting the ARINC818 module.

5. The on-board display of claim 1, wherein the video processing module and the ARINC818 module are each configured as a board.

6. The on-board display of claim 3, wherein the cover body has an area greater than an area of the hollowed-out area mounted; the area of the cover plate main body is larger than that of the installed video processing module or ARINC818 module; the cover plate main body is arranged on one side of the middle cover plate, which is close to the rear cover plate.

7. The on-board display of claim 3, wherein the heat sink is a heat sink fan; the heat dissipation fan is close to or attached to the heat dissipation air duct.