Ventilation system for aircraft common computing resources

Abstract

The utility model relates to a ventilation system for aircraft public computing resources, which comprises a public processing case which comprises a first ventilation hole arranged at the bottom of the case, a second ventilation hole arranged at the top of the case and a board card accommodating part arranged between the bottom of the case and the top of the case; the public processing board card comprises a shell and a circuit board arranged inside the shell, the shell comprises a third ventilation hole formed in the bottom of the shell and a fourth ventilation hole formed in the top of the shell, the circuit board extends in the direction from the third ventilation hole to the fourth ventilation hole, and the third ventilation hole is communicated with the fourth ventilation hole. The board card accommodating part accommodates the common processing board card and enables the first ventilation hole to be aligned with the third ventilation hole and the second ventilation hole to be aligned with the fourth ventilation hole, so that an airflow channel which sequentially flows through the first ventilation hole, the third ventilation hole, the circuit board, the fourth ventilation hole and the second ventilation hole is formed. The ventilation system can prevent high temperature from being generated to affect use.

Description

Technical Field

[0001] The utility model relates to a ventilation system for aircraft public computing resources, in particular to a ventilation system for aircraft public computing resources. Background Art

[0002] Civil avionics systems are key components of modern civil aircraft, providing essential functions such as communication, navigation, maintenance, and human-machine interface. With the increasing requirements for safety, efficiency, economy, and comfort of civil aircraft, the importance of avionics systems has become increasingly prominent. In addition, with the development of microelectronics technology and software technology, the structure of avionics systems has evolved from traditional discrete and joint structures to integrated and highly integrated structures. Aircraft usually use public processing resources to integrate the functions of multiple avionics subsystems, and also integrate many non-traditional avionics functions. This public processing resource can also be called integrated modular avionics, or IMA. This setting places higher requirements on the computing power of public processing resources, as well as on the ventilation and heat dissipation performance of public processing resources.

[0003] Existing technical solutions and domestic and foreign published patents and papers mainly focus on the systems and equipment of the aircraft's public processing resources, but do not focus on the processing boards of the public processing resources. There is no special ventilation and heat dissipation design for the chips and processing boards that generate the highest heat, which causes the temperatures of the processing boards and chips to be too high, affecting the use of avionics public computing resources.

[0004] In the invention patent with publication number CN 115529810A and titled "A New IMA Architecture Air-Cooling and Heat Dissipation System" published on December 27, 2022, a new IMA architecture air-cooling and heat dissipation system is disclosed. This air-cooling and heat dissipation system mainly focuses on cabinet heat dissipation, in which each layer of modules has independent heat dissipation ducts and fan assemblies, and is connected in parallel with each other, avoiding the problems of heat accumulation, large wind resistance and low reliability caused by series heat dissipation of each layer of modules in the conventional IMA architecture air-cooling system. The heat dissipation system mainly achieves heat dissipation through fan assemblies under each layer of modules. However, adding fan assemblies will increase the weight of the cabinet. In addition, the heat dissipation system also lacks corresponding dustproof modules.

[0005] In the utility model patent with publication number CN 217985812 U and titled "Rack cooling system based on IMA architecture" published on December 6, 2022, a rack cooling system is disclosed. The rack cooling system mainly focuses on rack cooling, and the rack is cooled by the built-in fan of the chassis. The cooling system achieves heat dissipation through each fan assembly, so adding fan assemblies will increase the weight of the cabinet. In addition, the cooling system also lacks a corresponding dustproof module.

[0006] It can be seen that when designing ventilation and heat dissipation systems, the existing technology mainly considers the ventilation and heat dissipation requirements of the corresponding systems and equipment on the aircraft, and does not focus on the processing boards of public processing resources, nor does it perform special ventilation and heat dissipation designs for the chips and processing boards that generate the highest heat. As a result, the temperatures of the processing boards and chips are too high, affecting the use of avionics public computing resources.

[0007] Therefore, there is still a need to provide an improved ventilation system for aircraft common computing resources, which can overcome one or more shortcomings of the heat dissipation systems for aircraft common computing resources in the prior art. Utility Model Content

[0008] The utility model aims to meet the ventilation and heat dissipation requirements of a public processing chassis and a public processing board of an aircraft system by designing ventilation and heat dissipation for the public processing chassis and the public processing board and forming a ventilation and heat dissipation component.

[0009] According to one aspect of the utility model, a ventilation system for common computing resources of an aircraft is proposed, and the ventilation system may include: a common processing chassis, the common processing chassis including a first ventilation hole arranged at the bottom of the chassis, a second ventilation hole arranged at the top of the chassis, and a board accommodating portion arranged between the bottom of the chassis and the top of the chassis; and a common processing board, the common processing board including a shell and a circuit board arranged inside the shell, the shell including a third ventilation hole arranged at the bottom of the shell and a fourth ventilation hole arranged at the top of the shell, wherein the circuit board extends in a direction from the third ventilation hole to the fourth ventilation hole, wherein the board accommodating portion receives the common processing board, and aligns the first ventilation hole with the third ventilation hole, and the second ventilation hole with the fourth ventilation hole, so as to form an airflow channel that flows through the first ventilation hole, the third ventilation hole, the circuit board, the fourth ventilation hole, and the second ventilation hole in sequence.

[0010] This ventilation system forms a continuous airflow channel or ventilation channel through the ventilation holes on the common processing chassis and the common processing board. In this way, cold air can flow from the bottom to the top of the common processing chassis (or IMA chassis), cool the common processing board (especially the circuit board therein, including chips, processors, etc.), and cool the common processing chassis, so as to avoid the common processing chassis, common processing board, chips, etc. from generating high temperatures and affecting use.

[0011] According to the above aspects of the present invention, preferably, the ventilation system may further include a dustproof device, which is arranged at the first ventilation hole and the second ventilation hole so that the first ventilation hole and the second ventilation hole can be transformed between an open state and a closed state respectively.

[0012] Through this arrangement, when ventilation is not required, the first ventilation hole and the second ventilation hole can be selectively closed to prevent dust from entering the public processing chassis, thereby improving the reliability and safety of the aircraft's public computing resources.

[0013] According to the above aspects of the utility model, preferably, when the common processing board is inserted into the board accommodating portion, the dustproof device can make the first ventilation hole and the second ventilation hole in an open state, and when the common processing board is not inserted into the board accommodating portion, the dustproof device can allow the first ventilation hole and the second ventilation hole to be in a closed state.

[0014] In this way, when the public processing board is inserted, the ventilation holes are opened to better cool the public processing board and the public processing chassis, and when the public processing board is not inserted or removed, the ventilation holes are closed to prevent dust from entering the public processing chassis.

[0015] According to the above aspects of the utility model, preferably, the dustproof device may include a slot and a plug-in card, the slot may be positioned at the bottom and the top of the chassis and have an accommodating space, the plug-in card may be accommodated in the accommodating space, and a fifth ventilation hole may be provided on the plug-in card, wherein the plug-in card can be moved along the length direction of the slot to selectively align the fifth ventilation hole with the first ventilation hole or the second ventilation hole.

[0016] In this way, the opening or closing of the first ventilation hole or the second ventilation hole can be efficiently achieved, and the structure is reliable and the sealing performance is good.

[0017] According to the above aspects of the utility model, preferably, the first ventilation hole, the second ventilation hole, the third ventilation hole, the fourth ventilation hole and the fifth ventilation hole may each include a plurality of ventilation holes, and the plurality of ventilation holes are arranged along the length direction (and the width direction) of the slot, wherein the plurality of ventilation holes are arranged in the length direction to include at least one of the following patterns: two ventilation holes are alternately arranged with one ventilation hole, and the centers of the two ventilation holes alternate with the center of an adjacent ventilation hole at an integer multiple of the unit hole spacing; two ventilation holes are alternately arranged, and the centers of the two ventilation holes alternate with the centers of two adjacent ventilation holes at an integer multiple of twice or more of the unit hole spacing; or a single ventilation hole alternating at an integer multiple of the unit hole spacing, and wherein the unit hole spacing is not less than the diameter of a single ventilation hole.

[0018] With this arrangement, all ventilation holes can be opened or closed by moving only a short distance, which improves operating efficiency and dust prevention.

[0019] According to the above aspects of the utility model, in order to better guide the card to move in the accommodating space, preferably, the accommodating space can be in the form of a guide groove, and guide rails are provided on both sides of the card, and the guide rails are engaged in the guide groove to enable the card to slide along the length direction of the slot.

[0020] According to the above aspects of the utility model, preferably, the dustproof device may also include a biasing member, which is arranged between the slot and the plug-in card (for example, arranged between the end of the slot and the end of the plug-in card), and biases the plug-in card so that the fifth ventilation hole is not aligned with the first ventilation hole or the second ventilation hole, so that the first ventilation hole and the second ventilation hole are in a closed state.

[0021] In this way, in the default state, the dustproof device can keep the first ventilation hole and the second ventilation hole in a closed state, and only when the common processing board is inserted into the board accommodating portion by overcoming the biasing force of the biasing component, the first ventilation hole and the second ventilation hole are opened for ventilation and heat dissipation, thereby improving the dustproof effect.

[0022] According to the above aspects of the present invention, preferably, the common processing board may also include a front panel, which extends between the bottom and top of the shell and is provided with a tab, wherein the tab extends beyond the bottom and top of the shell in the upward and downward directions respectively.

[0023] Through this arrangement, when the common processing board is inserted into the common processing chassis, the insert can be moved relative to the slot (this movement is achieved by the tab abutting against the insert) to transform the first ventilation hole and the second ventilation hole from a closed state to an open state, and always maintain the open state until the common processing board is unplugged or removed from the common processing chassis.

[0024] According to the above aspects of the utility model, preferably, the common processing chassis may further include: a first mounting portion arranged at the bottom of the chassis and a second mounting portion arranged at the top of the chassis, and the common processing board may further include: a third mounting portion arranged at the bottom of the shell and a fourth mounting portion arranged at the top of the shell, wherein the first mounting portion and the second mounting portion have the form of guide rails, and the third mounting portion and the fourth mounting portion have the form of guide grooves, so that the common processing board can be slidably installed into the common processing chassis.

[0025] Through this arrangement, the common processing board can be quickly and accurately installed in the common processing chassis, thereby improving the installation efficiency and ensuring the accurate positioning and alignment between the various ventilation holes.

[0026] According to the above aspects of the utility model, preferably, the first ventilation hole can pass through the bottom of the chassis and the first mounting portion, and the second ventilation hole can pass through the top of the chassis and the second mounting portion. Through this arrangement, the ventilation path is further optimized, the ventilation and heat dissipation efficiency is improved, and the processing of the ventilation holes is convenient.

[0027] Therefore, the ventilation system of the utility model can meet the use requirements, overcome the shortcomings of the prior art and achieve the predetermined purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to further clearly describe the ventilation system according to the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. In the accompanying drawings:

[0029] Figure 1 A schematic perspective view of a ventilation system for aircraft public computing resources according to a non-limiting embodiment of the present invention is shown;

[0030] Figure 2 A schematic top view of a common processing chassis according to a non-limiting embodiment of the present invention is shown;

[0031] Figure 3 Shows Figure 2 A schematic side view of a common processing chassis is shown;

[0032] Figure 4 Shown by Figure 3 A schematic cross-sectional view of a common processing chassis cut along line AA;

[0033] Figure 5 Shown by Figure 3 A schematic cross-sectional view of a common processing chassis cut along line BB shown;

[0034] Figure 6 A schematic side view of a common processing board according to a non-limiting embodiment of the present invention is shown;

[0035] Figure 7 Shows Figure 6 A schematic top view of a common processing board is shown;

[0036] Figure 8 Shows Figure 6 A schematic front view of a common processing board is shown;

[0037] Fig. 9 Shown by Figure 6 A schematic cross-sectional view of a common processing board cut along line AA shown;

[0038] Fig.10 Shown by Figure 6 A schematic cross-sectional view of a common processing board cut along line BB shown;

[0039] Fig.11 A schematic side view of an insertion card according to a non-limiting embodiment of the present invention is shown;

[0040] Fig.12 Shows Fig.11 A schematic top view of the plug-in card is shown;

[0041] Fig.13 Shows Fig.11 A schematic front view of the plug-in card is shown;

[0042] Fig.14 Shown by Fig.11 A schematic cross-sectional view of the plug-in card taken along line AA;

[0043] Fig.15 Shown by Fig.11 A schematic cross-sectional view of the plug-in card taken along line BB;

[0044] Fig.16 A schematic top view showing a common processing chassis according to an alternative embodiment of the present invention; and

[0045] Fig.17 A schematic side view of a plug-in card according to an alternative embodiment of the present invention is shown.

[0046] The above drawings are merely schematic and are not drawn strictly to scale.

[0047] List of reference numerals in the figures and embodiments:

[0048] 100- Ventilation system, including:

[0049] 10- Public processing chassis, including:

[0050] 11- Chassis bottom, including:

[0051] 11A-first ventilation hole;

[0052] 11B-first mounting portion;

[0053] 12-Chassis top, including:

[0054] 12A-second ventilation hole;

[0055] 12B-second mounting portion;

[0056] 13-board card accommodating portion;

[0057] 14- Chassis back;

[0058] 15- a first side portion;

[0059] 16 - second side portion;

[0060] 20- Public processing board, including:

[0061] 20A-housing;

[0062] 21- Shell bottom, including:

[0063] 21A-third vent;

[0064] 21B-third mounting portion;

[0065] 22- Shell top, including:

[0066] 22A-Fourth vent;

[0067] 22B- fourth mounting portion;

[0068] 23-Front panel, including:

[0069] 23A-tab;

[0070] 30- Dust protection device, including:

[0071] 31-slots, including:

[0072] 31A-Accommodation space;

[0073] 32-card, including:

[0074] 32A-fifth vent;

[0075] 32B-guide rail;

[0076] 32C-free end;

[0077] Y-length direction;

[0078] X-width direction;

[0079] Z-height direction;

[0080] S - unit hole spacing. DETAILED DESCRIPTION

[0081] It should be understood that, unless explicitly stated otherwise, the present invention may adopt various alternative orientations and step sequences. It should also be understood that the specific devices shown in the drawings and described in the specification are merely exemplary embodiments of the utility model concepts disclosed and defined herein. Therefore, unless otherwise explicitly stated, the specific orientations, directions or other physical features involved in the various embodiments disclosed should not be considered as limitations.

[0082] Figure 1 A schematic perspective view of a ventilation system 100 for a common computing resource of an aircraft according to a non-limiting embodiment of the present invention is shown.

[0083] As shown in the figure and as a non-limiting example, the ventilation system 100 may mainly include a common processing chassis 10 and a common processing board 20 and the like.

[0084] The common processing chassis 10 may be a frame-type structure and may include a chassis bottom 11, a chassis top 12, and a card receiving portion 13 between the chassis bottom 11 and the chassis top 12. In addition, the common processing chassis 10 may further include a chassis back 14, a first side 15, and a second side 16 opposite to the first side 15.

[0085] In this way, the chassis bottom 11 , chassis top 12 , chassis back 14 , first side 15 and second side 16 enclose a substantially rectangular frame structure, and are only open at the front opposite to the chassis back 14 to receive the common processing board 20 .

[0086] exist Figure 1 A coordinate system is provided for reference, wherein the X direction may refer to the width direction or lateral direction of the common processing chassis 10 or the common processing board 20, the Y direction may refer to the length direction, depth direction or longitudinal direction, and the Z direction may refer to the height direction or vertical direction.

[0087] Figure 2 A schematic top view of a common processing chassis 10 according to a non-limiting embodiment of the present invention is shown; Figure 3 Shows Figure 2 A schematic side view of a common processing chassis 10 is shown; and Figure 4 and 5 They are shown respectively through Figure 3 Schematic cross-sectional views of a common processing chassis cut along lines AA and BB are shown.

[0088] like Figure 1-5 As shown and as a non-limiting example, a first ventilation hole 11A and a first mounting portion 11B may be provided at the chassis bottom 11. Preferably, the first ventilation hole 11A may penetrate the chassis bottom 11 and the first mounting portion 11B.

[0089] Likewise, a second ventilation hole 12A and a second mounting portion 12B may be provided at the chassis top 12. Preferably, the second ventilation hole 12A penetrates the chassis top 12 and the second mounting portion 12B.

[0090] like Figure 1 and Figure 4-5As more clearly shown in the figure, the first mounting portion 11B and the second mounting portion 12B can each have the form of a guide rail. Specifically, the first mounting portion 11B and the second mounting portion 12B can each extend from the chassis bottom 11 and the chassis top 12 toward the board card accommodating portion 13 (i.e., extend toward each other) to form a guide rail having a substantially rectangular cross-section. The guide rail extends from the open side of the common processing chassis 10 toward the chassis back 14, for example, extending substantially parallel to the first side 15 and the second side 16. In this way, corresponding recessed portions can be formed on both sides of the first mounting portion 11B and the second mounting portion 12B, and an undulating guide structure of alternating protrusions and recesses is formed along the width direction or the lateral direction X.

[0091] In the embodiment shown in the accompanying drawings, eight first mounting portions 11B and second mounting portions 12B parallel to each other are schematically shown, and from the first side portion 15 and the second side portion 16, each corresponding first mounting portion 11B and the corresponding second mounting portion 12B can be aligned along the height direction Z, thereby allowing the common processing board 20 to be fitted and installed (for example, inserted) into the board accommodating portion 13 of the common processing chassis 10.

[0092] Figure 6 A schematic side view of a common processing board 20 according to a non-limiting embodiment of the present invention is shown; Figure 7 Shows Figure 6 A schematic top view of the common processing board 20 shown; Figure 8 Shows Figure 6 A schematic front view of the common processing board 20 shown; and Fig. 9 and Fig.10 They are shown respectively through Figure 6 Schematic cross-sectional views of the common processing board 20 taken along lines AA and BB are shown.

[0093] like Figure 6-10 As shown and as a non-limiting example, the common processing board 20 may mainly include a housing 20A and a circuit board (not shown) disposed inside the housing 20A.

[0094] The housing 20A may be substantially in the shape of a parallelepiped, and may include a housing bottom 21 and an opposing housing top 22 , and a front panel 23 extending between the housing bottom 21 and the housing top 22 .

[0095] As shown in the figure, a third ventilation hole 21A and a third mounting portion 21B may be provided at the bottom 21 of the housing. Similarly, a fourth ventilation hole 22A and a fourth mounting portion 22B may be provided at the top 22 of the housing.

[0096] A circuit board not shown may extend in a direction from the bottom 21 of the shell to the top 22 of the shell or in a direction from the third ventilation hole 21A to the fourth ventilation hole 22A, i.e., a surface of the circuit board on which various chips or processors are arranged, etc., extends along a height direction Z to allow airflow to flow through these chips or processors.

[0097] like Figure 6-8 As shown in detail in FIG. 2 , the front panel 23 may be provided with tabs 23A, for example, tabs at the upper and lower portions. The tabs 23A may extend beyond the housing bottom 21 and the housing top 22 in the downward and upward directions, respectively.

[0098] exist Figure 6 In the illustrated embodiment, the tab 23A may have a generally trapezoidal shape and taper toward the front from the front panel 23. When the common processing board 20 has been fitted into the common processing chassis 10, the wider bottom of the tab 23A may abut against the surface of the common processing chassis 10 and fit to the narrower top of the tab 23A by means of a corresponding snap or lock (not shown in the drawings), thereby locking the common processing board 20 into the common processing chassis 10. In addition, it can be seen that as the common processing board 20 is inserted (e.g., inserted along the corresponding mounting portion) into the common processing chassis 10, the tab 23A will be pushed against the protruding end of the plug-in card 32, as described in more detail below.

[0099] like Figure 1 and Figure 7 As shown in detail in FIG. 1 , the third mounting portion 21B and the fourth mounting portion 22B may have a guide groove form so that the common processing board 20 can be slidably mounted in the common processing chassis 10. For example, the third mounting portion 21B and the fourth mounting portion 22B of the common processing board 20 may be matched to the first mounting portion 11B and the second mounting portion 12B to slide along the first mounting portion 11B and the second mounting portion 12B.

[0100] After the common processing board 20 has been fitted and installed into the common processing chassis 10, the first ventilation hole 11A is aligned with the third ventilation hole 21A, and the second ventilation hole 12A is aligned with the fourth ventilation hole 22A to form an air flow channel that flows sequentially through the first ventilation hole 11A, the third ventilation hole 21A, the circuit board, the fourth ventilation hole 22A and the second ventilation hole 12A.

[0101] The description "aligned" as used herein is a broad expression used to mean that one or more vents are in communication, ie, airflow is allowed to flow through these aligned vents, but does not necessarily mean that the center of each vent is perfectly aligned.

[0102] As a non-limiting embodiment of the present invention, the ventilation system 100 according to the present invention may further include a dustproof device 30. For example, the dustproof device 30 may be respectively disposed at the first ventilation hole 11A and the second ventilation hole 12A, so that the first ventilation hole 11A and the second ventilation hole 12A can be respectively transformed between an open state and a closed state.

[0103] Preferably, when the common processing board 20 is inserted into the board accommodating portion 13, the dustproof device 30 can keep the first ventilation hole 11A and the second ventilation hole 12A in an open state, and when the common processing board 20 is not inserted into the board accommodating portion 13, the dustproof device 30 can allow the first ventilation hole 11A and the second ventilation hole 12A to be in a closed state.

[0104] As a non-limiting example, the dustproof device 30 may include a slot 31 and a plug-in card 32. Figure 1 and Figure 2 As shown in detail in FIG. 1 , the slot 31 may be positioned on the chassis bottom 11 and the chassis top 12 and have a receiving space 31A, and the plug-in card 32 is received in the receiving space 31A. As an example, the receiving space 31A may have a guide groove.

[0105] Fig.11 A schematic side view of a plug-in card 32 according to a non-limiting embodiment of the present invention is shown; Fig.12 and Fig.13 They are shown respectively Fig.11 Schematic top view and front view of the plug-in card 32 shown; and Fig.14 and Fig.15 They are shown respectively through Fig.11 Schematic cross-sectional views of the plug-in card 32 are shown along lines AA and BB.

[0106] As shown, the card 32 may have a substantially flat strip shape. The card 32 may be provided with a fifth vent 32A, and guide rails 32B are provided on both sides of the card 32, and the guide rails are engaged in the guide grooves to slide the card 32 along the slot 31 in the length direction Y.

[0107] In this way, the card 32 can move along the slot 31 in the length direction Y so that the fifth ventilation hole 32A is selectively aligned with the first ventilation hole 11A or the second ventilation hole 12A. In other words, as the card 32 moves along the slot 31 in the length direction Y, the fifth ventilation hole 32A can move from a position aligned with the first ventilation hole 11A or the second ventilation hole 12A to a position where they are not aligned, or alternatively, the fifth ventilation hole 32A can move from a position where they are not aligned with the first ventilation hole 11A or the second ventilation hole 12A to a position where they are aligned.

[0108] When the common processing board 20 is inserted into the common processing chassis 10 and locked in the common processing chassis 10 by means of the tab 23A and the matching latch / locking member, the plug-in card 32 is pushed into the slot 31 by the tab 23A, so that the fifth ventilation hole 32A is aligned with the first ventilation hole 11A or the second ventilation hole 12A, and remains in the aligned state until the common processing board 20 is pulled out or removed from the common processing chassis 10 again.

[0109] In order to return the fifth vent 32A to the misaligned state with the first vent 11A or the second vent 12A after the common processing board 20 is pulled out or removed from the common processing chassis 10, so that the first vent 11A and the second vent 12A are closed, the dust prevention device 30 may further include a biasing member. For example, the biasing member is disposed between the slot 31 and the plug-in card 32, and biases the plug-in card 32 to make the fifth vent 32A misaligned with the first vent 11A or the second vent 12A, so that the first vent 11A and the second vent 12A are in a closed state, that is, remain closed in the default state.

[0110] As an example, the biasing member may be in the form of a compression spring and disposed between the insertion end of the card 32 and the innermost end of the slot 31 (ie, the closed end proximate the chassis back 14 ).

[0111] exist Figure 1-15 In the illustrated embodiment, the first ventilation hole 11A, the second ventilation hole 12A, the third ventilation hole 21A, the fourth ventilation hole 22A, and the fifth ventilation hole 32A may include a plurality of ventilation holes extending along the length direction Y, and the pattern of these ventilation holes is formed as a single row of spaced ventilation holes, each ventilation hole is aligned in a straight line in the length direction Y, and there is a predetermined interval therebetween, which may not be less than the diameter of the ventilation hole. As a preferred embodiment, adjacent ventilation holes are alternated by an integer multiple of the unit hole spacing S.

[0112] In this arrangement, when the common processing board 20 is pulled out or removed from the common processing chassis 10, or before the common processing board 20 is inserted into the common processing chassis 10, the free end 32C of the plug-in card 32 can protrude from the slot 31, and the protruding distance can be set, for example, to: on the one hand, the fifth ventilation hole 32A is not aligned with the first ventilation hole 11A or the second ventilation hole 12A, that is, the first ventilation hole 11A and the second ventilation hole 12A are completely closed, and on the other hand, the fifth ventilation hole 32A is aligned with the first ventilation hole 11A or the second ventilation hole 12A after the common processing board 20 is inserted and locked into the common processing chassis 10. Preferably, the centers of the ventilation holes are aligned with each other.

[0113] In an alternative embodiment, the first ventilation hole 11A, the second ventilation hole 12A, the third ventilation hole 21A, the fourth ventilation hole 22A, and the fifth ventilation hole 32A may each include a plurality of ventilation holes.

[0114] Fig.16 A schematic top view of a common processing chassis 10 according to an alternative embodiment of the present utility model is shown; and Fig.17 A schematic side view of a plug-in card 32 according to an alternative embodiment of the present invention is shown.

[0115] As shown in the figure, in this alternative embodiment, a plurality of ventilation holes are arranged along the length direction Y (and the width direction X), wherein the plurality of ventilation holes may be arranged in the length direction Y to have at least one of the following patterns or any combination thereof: two ventilation holes are arranged alternately with one ventilation hole, and the centers of the two ventilation holes alternate with the centers of an adjacent ventilation hole at an integer multiple of the unit hole spacing S; or two ventilation holes are arranged alternately, and the centers of the two ventilation holes alternate with the centers of the adjacent two ventilation holes at an integer multiple of two or more times the unit hole spacing S. Similarly, the unit hole spacing S is not less than the diameter of a single ventilation hole.

[0116] As a preferred embodiment, the free end 32C of the plug-in card 32 can protrude from the slot 31 by a length equal to the spacing S, and move by a distance equal to the spacing S or an integer multiple thereof.

[0117] In addition, Fig.16 and 17 In the example arrangement pattern shown in , the alternation of two ventilation holes and one ventilation hole is also arranged such that: the spacing between the two ventilation holes in the width direction X is also not less than the unit hole spacing S, and a ventilation hole adjacent to the two ventilation holes can be centrally positioned in the width direction X at approximately the center of the two ventilation holes.

[0118] In this way, when the free end 32C of the plug-in card 32 protrudes from the slot 31, that is, when the common processing board 20 is not inserted into the common processing chassis 10, a fifth ventilation hole 32A can be located between the two first ventilation holes 11A, so that the three ventilation holes are aligned in the width direction X (for example, arranged in a straight line), and when the common processing board 20 is inserted into the common processing chassis 10, the plug-in card 32 moves relative to the slot 31, and the free end 32C is completely pushed into the slot 31 by the complete protrusion 23A, and a fifth ventilation hole 32A can be spaced apart from the two first ventilation holes 11A by a unit hole spacing S, and aligned with a first ventilation hole 11A, which is positioned adjacent to the aforementioned two first ventilation holes 11A.

[0119] It should be understood that although the above description takes the first ventilation hole 11A and the fifth ventilation hole 32A as an example to describe the opening and closing process thereof, the description is also applicable to the second ventilation hole 12A and the fifth ventilation hole 32A.

[0120] As used herein, the terms "height direction", "length direction", "bottom" or "bottom" indicating the position or orientation, and the terms "first", "second", etc. used to indicate the order are only for the purpose of enabling those of ordinary skill in the art to better understand the concept of the present invention shown in the form of a preferred embodiment, and are not used to limit the present invention. Unless otherwise specified, all orders, positions or orientations are only used for the purpose of distinguishing one element / component / structure from another element / component / structure, and unless otherwise specified, do not represent any specific order, order of operation, direction or orientation. For example, in an alternative embodiment, the "first side" may be the "second side", and the "chassis top" may alternatively refer to the "chassis bottom".

[0121] In summary, the ventilation system 100 according to the embodiment of the utility model overcomes the shortcomings of the prior art and achieves the intended purpose of the utility model.

[0122] Although the ventilation system of the utility model is described above in combination with the preferred embodiments, those skilled in the art should recognize that the above examples are only for illustration and cannot be used as limitations on the utility model. Therefore, various modifications and variations can be made to the utility model within the spirit of the claims, and these modifications and variations will fall within the scope required by the claims of the utility model.

Claims

1. A ventilation system (100) for aircraft public computing resources, characterized in that: The ventilation system (100) for aircraft common computing resources comprises: A common processing chassis (10), comprising a first ventilation hole (11A) arranged at a chassis bottom (11), a second ventilation hole (12A) arranged at a chassis top (12), and a board accommodating portion (13) arranged between the chassis bottom (11) and the chassis top (12); and A common processing board (20), comprising a housing (20A) and a circuit board arranged inside the housing (20A), the housing (20A) comprising a third ventilation hole (21A) arranged at the bottom (21) of the housing and a fourth ventilation hole (22A) arranged at the top (22) of the housing, wherein the circuit board extends in a direction from the third ventilation hole (21A) to the fourth ventilation hole (22A), The board accommodating portion (13) receives the common processing board (20), and aligns the first ventilation hole (11A) with the third ventilation hole (21A), and aligns the second ventilation hole (12A) with the fourth ventilation hole (22A), so as to form an air flow channel that sequentially flows through the first ventilation hole (11A), the third ventilation hole (21A), the circuit board, the fourth ventilation hole (22A) and the second ventilation hole (12A).

2. The ventilation system (100) for aircraft public computing resources according to claim 1, characterized in that: The ventilation system (100) further comprises a dustproof device (30) which is arranged at the first ventilation hole (11A) and the second ventilation hole (12A) so that the first ventilation hole (11A) and the second ventilation hole (12A) can be switched between an open state and a closed state respectively.

3. The ventilation system (100) for aircraft public computing resources according to claim 2, characterized in that: When the common processing board (20) is inserted into the board accommodating portion (13), the dustproof device (30) enables the first ventilation hole (11A) and the second ventilation hole (12A) to be in an open state; and when the common processing board (20) is not inserted into the board accommodating portion (13), the dustproof device (30) allows the first ventilation hole (11A) and the second ventilation hole (12A) to be in a closed state.

4. The ventilation system (100) for aircraft public computing resources according to claim 2, characterized in that: The dustproof device (30) comprises a slot (31) and an insertion card (32), wherein the slot (31) is positioned on the bottom (11) and the top (12) of the chassis and has a receiving space (31A), the insertion card (32) is received in the receiving space (31A), and a fifth ventilation hole (32A) is provided on the insertion card (32). The insertion card (32) is movable along the length direction (Y) of the slot (31) so that the fifth ventilation hole (32A) is selectively aligned with the first ventilation hole (11A) or the second ventilation hole (12A).

5. The ventilation system (100) for aircraft public computing resources according to claim 4, characterized in that: The first ventilation hole (11A), the second ventilation hole (12A), the third ventilation hole (21A), the fourth ventilation hole (22A), and the fifth ventilation hole (32A) each include a plurality of ventilation holes, and the plurality of ventilation holes are arranged along the length direction (Y) of the slot (31), wherein the plurality of ventilation holes are arranged in the length direction (Y) to include at least one of the following patterns: Two ventilation holes are arranged alternately with one ventilation hole, and the centers of the two ventilation holes and the center of an adjacent ventilation hole are alternated with an integer multiple of the unit hole spacing (S); Two ventilation holes are arranged alternately, and the centers of the two ventilation holes alternate with the centers of two adjacent ventilation holes by an integer multiple of twice or more than twice the unit hole spacing (S); or Individual ventilation holes alternate with integer multiples of the unit hole spacing (S), And wherein, the unit hole spacing (S) is not less than the diameter of a single ventilation hole.

6. The ventilation system (100) for aircraft public computing resources according to claim 4, characterized in that: The accommodating space (31A) is in the form of a guide groove, and guide rails (32B) are provided on both sides of the insertion card (32), and the guide rails (32B) are engaged in the guide groove to enable the insertion card (32) to slide along the length direction (Y) of the slot (31).

7. The ventilation system (100) for aircraft public computing resources according to claim 4, characterized in that: The dustproof device (30) further includes a biasing member, which is disposed between the slot (31) and the plug-in card (32) and biases the plug-in card (32) so that the fifth ventilation hole (32A) is not aligned with the first ventilation hole (11A) or the second ventilation hole (12A), so that the first ventilation hole (11A) and the second ventilation hole (12A) are in a closed state.

8. The ventilation system (100) for aircraft public computing resources according to claim 7, characterized in that: The common processing board (20) also includes a front panel (23), which extends between the bottom (21) and the top (22) of the shell and is provided with a tab (23A), wherein the tab (23A) extends beyond the bottom (21) and the top (22) of the shell in the downward and upward directions respectively.

9. A ventilation system (100) for aircraft public computing resources according to any one of claims 1 to 8, characterized in that: The public processing chassis (10) further comprises: a first mounting portion (11B) arranged at the bottom (11) of the chassis and a second mounting portion (12B) arranged at the top (12) of the chassis, and the public processing board (20) further comprises: a third mounting portion (21B) arranged at the bottom (21) of the housing and a fourth mounting portion (22B) arranged at the top (22) of the housing. The first mounting portion (11B) and the second mounting portion (12B) are in the form of guide rails, and the third mounting portion (21B) and the fourth mounting portion (22B) are in the form of guide grooves, so that the common processing board (20) can be slidably installed in the common processing chassis (10).

10. The ventilation system (100) for aircraft common computing resources according to claim 9, characterized in that: The first ventilation hole (11A) passes through the chassis bottom (11) and the first mounting portion (11B), while the second ventilation hole (12A) passes through the chassis top (12) and the second mounting portion (12B).

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