Forced air cooling structure of aviation airborne electronic equipment

Abstract

The utility model relates to the technical field of aviation airborne finished product detection, and relates to a forced air cooling structure of aviation airborne electronic equipment. Comprising a case, a power module and a plug-in mounting frame, a first air inlet fan is arranged on the wall face of one side of the machine case, an exhaust fan is arranged on the wall face, symmetrical to the first air inlet fan, of the machine case, a second air inlet fan is arranged on the bottom face of the machine case, the plug-in mounting frame is connected to the bottom face of the machine case in a screwed mode, the electronic module is mounted on the plug-in mounting frame, and the power module is arranged in the machine case. The power module supplies power to the electronic module, the first air inlet fan, the second air inlet fan and the exhaust fan. Inlet air guided into the left installation area from the first air inlet fan can enter the right installation area through the air opening. The rear portion of the air deflector is closer to the exhaust fan, the exhaust resistance is smaller, the design of the air deflector with the low front portion and the high rear portion is more beneficial to uniform air cultivation, and the cooling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation airborne finished product detection technical field relates to aviation airborne electronic equipment's forced air cooling structure. BACKGROUND

[0002] Aviation airborne electronic equipment works in high temperature, high humidity environment for a long time, and the cabinet is often designed to be airtight, which can effectively prevent rainwater and moisture from entering the cabinet, but the heat dissipation problem of the electronic components in the airtight environment in the cabinet follows, and the heat dissipation effect of a single heating device directly affects the performance and service life of the equipment.

[0003] The operating temperature of the electronic equipment is an important factor affecting the service life and performance of the equipment, and the failure rate of the electronic components will increase by an order of magnitude for every 10℃ increase in the operating temperature of the electronic components. Therefore, the electronic component cabinet is designed for targeted heat dissipation, and a forced convection fluid channel is formed, which can effectively improve the reliability of the equipment. UTILITY MODEL CONTENTS

[0004] Therefore, the present application provides a forced air cooling structure of aviation airborne electronic equipment with strong heat dissipation capacity, which can form more reasonable air duct guidance and uniform air field distribution, thereby improving the heat dissipation effect in the cabinet and better ensuring the normal operation of the equipment.

[0005] UTILITY MODEL OBJECTIVE

[0006] The utility model discloses a forced air cooling structure of aviation airborne electronic equipment, which comprises a cabinet body structure, a plurality of electronic components, a switching power supply and an air inlet fan and an air outlet fan.

[0007] TECHNICAL SCHEME

[0008] The forced air cooling structure of aviation airborne electronic equipment comprises a cabinet, a power module and a plug-in rack.

[0009] Further, it further comprises a wind deflector, which is arranged in the cabinet and divides the cabinet into a left mounting area and a right mounting area.

[0010] Further, the air deflector is a stepped sheet, which is divided into a high step area and a bottom step area, and the bottom step area is close to the exhaust fan, so that the air passage of the top of the front part of the air deflector is larger than that of the top of the rear part.

[0011] Further, the plug-in rack is arranged in the left mounting area, and the power module is arranged in the right mounting area.

[0012] Further, the baffle is arranged on both sides of the plug-in rack, and is used for fixing both sides of the electronic module.

[0013] Further, the electronic module is a plurality of modules, which are arranged in parallel on the plug-in rack.

[0014] The application has the following beneficial effects:

[0015] (1) In the cabinet, a plurality of electronic modules generate a large amount of heat, and the heat is discharged to the outside of the cabinet by forced convection formed by the two air inlet fans and the exhaust fan; the top of the air deflector is spaced apart from the top of the cabinet, so that the air inlet of the left mounting area can enter the top of the right mounting area from the top of the air deflector, and then be discharged by the exhaust fan, thereby taking away the heat generated by the switching power module; the combination of the exhaust fan and the two air inlet fans, combined with the reasonable segmentation and layout of the air deflector, realizes more reasonable air duct guidance, and the air field is uniformly distributed, which is beneficial to improve the heat dissipation effect.

[0016] (2) The air inlet introduced into the left mounting area from the air inlet fan can enter the right mounting area through the air inlet; the rear part of the air deflector is closer to the exhaust fan, and the exhaust resistance is smaller; the design that the front part of the air deflector is lower and the rear part is higher is more conducive to uniform air cultivation and improves the cooling efficiency.

[0017] (3) The cabinet body structure of the scheme includes a bottom frame, a top frame, a left side plate, a right side plate and an upper cover plate; the bottom frame and the top frame form a rectangular frame integral structure, and the detachable design is more conducive to the disassembly and assembly of the internal structure of the cabinet body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the utility model;

[0019] Figure 2 is a cabinet frame schematic diagram of the utility model;

[0020] Figure 3 is a cabinet appearance structure schematic diagram of the utility model;

[0021] Figure 4 is a plug-in rack schematic diagram of the utility model;

[0022] Figure 5 is an installation schematic diagram of the electronic module of the utility model.

[0023] Wherein, 1 - case, 2 - plug-in frame, 3 - air deflector, 5 - electronic module, 6 - power module, 7 - baffle; 101 - front panel, 102 - rear panel, 103 - bottom plate, 104 - bottom frame, 105 - top frame;

[0024] 201 - upper frame body, 202 - lower frame body, 203 - cross bar, 204 - cross plate;

[0025] a - air inlet fan one, b - exhaust fan, c - air inlet fan two. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model embodiment will be described in more detail below in combination with the utility model embodiments. In the examples, the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The described embodiments are part of the embodiments of the utility model, not all. The described embodiments below are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. The embodiments of the utility model will be described in detail below.

[0027] The left part of the front panel of the case is provided with an air inlet fan one, the right part of the rear panel is provided with an exhaust fan, and the right part of the bottom plate is provided with an air inlet fan two; the middle part of the bottom plate is vertically provided with an air deflector, and the inside of the case can be divided into a left installation area and a right installation area through the air deflector; the bottom of the air deflector is connected with the bottom plate, and the top of the air deflector is spaced apart from the top of the case, so that the air inlet of the left installation area can enter the right installation area from the top of the air deflector; the switching power supply module is installed in the left installation area, a plurality of electronic modules are vertically installed in the right installation area, and the air inlet fan two is located below the electronic modules.

[0028] In a preferred embodiment of the present scheme, the front part of the air deflector is lower in height than the rear part, so that the air passage at the top of the front part of the air deflector is larger than that at the top of the rear part. The air inlet introduced into the left installation area from the air inlet fan one can enter the right installation area through the air passage.

[0029] In a preferred embodiment of the present scheme, the forced air cooling structure further comprises a plug-in frame, which is detachably fixed in the right installation area; a plurality of electronic modules are plugged into the plug-in frame, and the electronic modules are perpendicular to the air deflector.

[0030] In a preferred embodiment of the present scheme, the air inlet fan two is arranged at the front part of the bottom plate and below the plug-in frame.

[0031] In a preferred embodiment of the present scheme, the plug-in frame comprises an upper frame body, a lower frame body, and two horizontal rods and four vertical rods, the upper frame body and the lower frame body are connected as a whole structure through the four vertical rods; the two horizontal rods are fixed on the vertical rods and correspondingly arranged with the two horizontal edge rods of the upper frame body; the bottom of the horizontal edge rod of the upper frame body and the top of the horizontal rod are correspondingly provided with a plurality of groups of horizontal clamping grooves, and the electronic module can be clamped into a group of horizontal clamping grooves arranged correspondingly above and below.

[0032] In a preferred embodiment of the present scheme, the upper frame body is further provided with a horizontal plate below the left horizontal edge rod, the two ends of the horizontal plate are correspondingly fixed on the vertical rods, and a notch is arranged in the inner side of the horizontal plate corresponding to each group of horizontal clamping grooves, so that the left edge of the electronic module can be clamped into the notch to limit the electronic module.

[0033] In a preferred embodiment of the present scheme, the case further comprises a bottom frame, a top frame, a left side plate, a right side plate, and an upper cover plate; the bottom frame is provided with four vertical columns at the four corners, and the top frame is installed at the top ends of the four vertical columns to form a rectangular frame; the front panel, the rear panel, the left side plate, the right side plate, the upper cover plate, and the bottom plate are respectively connected and assembled on the corresponding surfaces of the rectangular frame by screws to form the case body. The bottom frame and the top frame constitute a rectangular frame whole structure, and the detachable design is more conducive to the installation of the internal structure of the case body.

[0034] In a preferred embodiment of the present scheme, the right side of the plug-in frame is detachably provided with a baffle, and the two ends of the baffle are screwed on the two vertical rods on the right side. It can lock multiple electronic modules.

[0035] As shown in Figure 1 , Figure 2 , Figure 3 The forced air cooling structure of the airborne electronic equipment is used for heat dissipation of the switching power supply module 6 and the electronic module 5, and comprises a case body structure, the inside of the case body structure is divided into a left installation area and a right installation area by a wind guide plate 3; the top of the left installation area is connected with the top of the right installation area, and the front side of the left installation area is provided with an air inlet fan a; the front side bottom of the right installation area is provided with an air inlet fan b, and the rear side is provided with an air outlet fan b; thereby forming a special forced air cooling fluid channel in the case body, and in the case of installing the switching power supply module 6 and multiple electronic modules 5 in the case body, better heat exchange effect can be achieved.

[0036] At the same time, referring to Figure 2 , in the present scheme, the case body structure comprises a bottom frame 104, a top frame 105, a left side plate, a right side plate, and an upper cover plate; the top frame 105 is installed at the top ends of the four vertical columns at the four corners of the bottom frame 104 to form a rectangular frame; the front panel 101, the rear panel 102, the left side plate, the right side plate, the upper cover plate, and the bottom plate 103 are respectively connected and assembled on the corresponding surfaces of the rectangular frame by screws to form the case body.

[0037] Further specifically, in this embodiment, the left part of the front panel 101 of the cabinet 1 is provided with an air inlet fan one a, the right part of the rear panel 102 is provided with an air outlet fan b, and the right part of the bottom plate 103 is provided with an air inlet fan two c; the middle part of the bottom plate 103 is vertically provided with a guide plate 3; as shown in Figure 1 The bottom part of the guide plate 3 is connected with the bottom plate 103, and the top part of the guide plate 3 is spaced apart from the top part of the cabinet 1, so that the air inlet of the left installation area can enter the top part of the right installation area from the top part of the guide plate 3, thereby taking away the heat generated by the switching power supply module 6; the switching power supply module 6 is installed in the left installation area, and a plurality of electronic modules 5 are vertically installed in the right installation area, and the air inlet fan two c is located below the electronic modules 5.

[0038] In this embodiment, the temperature of the plurality of electronic modules 5 inside the cabinet is relatively high, and the heat generated by the plurality of electronic modules 5 is mainly discharged to the outside of the cabinet by forced convection formed by the air inlet fan two c and the air outlet fan b.

[0039] In order to facilitate the installation of the plurality of electronic modules 5, further, as shown in Figure 1 In this scheme, the right installation area is detachably provided with a plug-in rack 2, the plurality of electronic modules 5 are plugged into the plug-in rack 2, and the electronic modules 5 are perpendicular to the guide plate 3. As shown in Figure 1 Figure 2 In this embodiment, the air inlet fan two c is arranged at the front part of the bottom plate 103 and below the plug-in rack 2.

[0040] Preferably, in this embodiment, the front part of the guide plate 3 is lower in height than the rear part, so that the air passage at the top of the front part of the guide plate 3 is larger than the air passage at the top of the rear part; the air inlet introduced into the left installation area from the air inlet fan one a can enter the right installation area through the air passage; the rear part of the guide plate 3 is closer to the air outlet fan and has smaller air outlet resistance, and the design of the lower front and higher rear of the guide plate 3 is more conducive to uniform air development and improves cooling efficiency.

[0041] As shown in Figure 4 Figure 5 Further, in this scheme, the plug-in rack 2 includes an upper frame body 201, a lower frame body 202, and two horizontal rods 203 and four vertical rods, the upper frame body 201 and the lower frame body 202 are connected as a whole structure through the four vertical rods, the two horizontal rods 203 are fixedly arranged on the vertical rods and correspondingly arranged with the two horizontal edge rods of the upper frame body 201, the bottom part of the horizontal edge rod of the upper frame body 201 and the top part of the horizontal rod 203 are correspondingly provided with a plurality of transverse clamping grooves, and the electronic module 5 can be clamped into a corresponding group of transverse clamping grooves.

[0042] In this scheme, the left side of the upper frame body 201 is further provided with a horizontal plate 204, the two ends of the horizontal plate 204 are correspondingly fixed on the vertical rods, the inner side of the horizontal plate 204 is correspondingly provided with a slot for each group of transverse clamping grooves, and the left side edge of the electronic module 5 can be clamped into the slot to limit the electronic module 5. ​​

[0043] In this embodiment, the corner pieces 4 are arranged around the plug-in frame 2, and the plug-in frame 2 is connected with the bottom plate 103 through the corner pieces 4 by means of screws, so as to further fix the plug-in frame 2.

[0044] In this embodiment, the baffle 7 is detachably arranged on the right side of the plug-in frame 2, and the baffle 7 is screwed on the two vertical rods on the right side through the two ends, so as to further fix the plurality of electronic modules 5.

[0045] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that the terms, such as those defined in a general dictionary, should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The above specific embodiments have further explained the purposes, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the present application. Any skilled person in the art can make changes or modifications to the above disclosed technical contents to obtain equivalent embodiments applied to other fields within the spirit and principles of the present application. However, any simple modification, equivalent change and improvement made on the basis of the technical essence of the present application to the above embodiments should be included in the protection scope of the present application.

Claims

1. Forced air cooling structure for airborne electronic equipment, characterized in that, It includes a cabinet, a power module, and a plug-in rack; a wall surface on one side of the cabinet is provided with an air inlet fan, a wall surface on the cabinet symmetric with the air inlet fan is provided with an air outlet fan, a bottom surface of the cabinet is provided with an air inlet fan two, the plug-in rack is screwed to the bottom surface of the cabinet, an electronic module is installed on the plug-in rack, the power module is arranged in the cabinet, and the power module provides power supply for the electronic module, the air inlet fan one, the air inlet fan two, and the air outlet fan.

2. The structure of claim 1, wherein It also includes a wind deflector arranged in the cabinet to divide the cabinet into a left installation area and a right installation area.

3. The structure of claim 2, wherein The wind deflector is a stepped sheet and is divided into a high-step area and a bottom-step area, the bottom-step area is close to the air outlet fan, and the air passage at the top of the front part of the wind deflector is larger than the air passage at the top of the rear part.

4. The structure of claim 3, wherein The plug-in rack is arranged in the left installation area, and the power module is arranged in the right installation area.

5. The structure of claim 4, wherein It also includes a baffle arranged on both sides of the plug-in rack to fix both sides of the electronic module.

6. The structure of claim 5, wherein The electronic module is a plurality of modules arranged in parallel on the plug-in rack.

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