A conformal chassis structure

Abstract

The present application relates to a kind of conformal chassis structures, including cabin section shell, the inner wall of the cabin section shell is circumferentially distributed with several guide rails for installing board card, the guide rail extends along the axial direction of cabin section shell, several board cards are annular array distribution in cabin section shell.By the above technical scheme, the cabin section shell replaces existing chassis shell in the present application, utilizes the shape structure of existing cabin section shell, directly in cabin section shell Paving is used for installing the guide rail of positioning board card, board card can be directly conducted to cabin section shell by guide rail Heat quickly, shorten the heat transfer path when board card heats, improve the board card heat dissipation efficiency and heat dissipation effect, improve the heat dissipation reliability and service life;In addition, the distribution setting form of guide rail makes board card be annular array distribution in cabin section shell, guarantee good heat dissipation while improving board card capacity.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cabin section equipment heat dissipation structure, and particularly relates to a conformal case structure. BACKGROUND

[0002] The equipment cabin applied to high altitude or water has a relatively low environment temperature outside the cabin section, which can be considered as a constant temperature wall surface, so that the cabin section has good heat dissipation capacity and is widely applied to the heat dissipation of equipment in the cabin section. Figure 1 As shown in the figure, the existing cabin section equipment structure includes a case 01, a support plate 02, a cabin section shell 03 and the like; the case 01 is fixedly installed on the support plate 02 through case mounting ears 011, and the support plate is fixed in the cabin section shell. Figure 2 As shown in the figure, the case is fixed on the cabin section shell through the support plate. The structure of the case is shown in the figure. Figure 3 As shown in the figure, the case includes a case shell 04, a board card 05, a puller, a locking strip 06 and a front panel 07; the board card 05 is inserted into the guide rail groove (board card mounting groove) in the case shell, and is positioned through the locking strip 06 after being inserted into place. The PCB device inside the board card generates heat during equipment operation, and the heat consumption of the PCB device is conducted to the cold plate shell of the board card and the case shell, at which time the case is naturally cooled (radiation, convection) and heat conduction cooling. The heat of natural cooling is finally conducted to the cabin section shell through the air around the case to realize heat exchange with the outside. The heat conduction cooling is conducted to the cabin section shell through the support plate. As can be seen, the existing cabin section equipment structure mainly has the following problems: 1. The heat transfer path is long, and the PCB device has a large temperature rise. In a high temperature state, the service life and reliability of the PCB device are reduced, and when there are multiple cases, the PCB device is worse in heat dissipation. 2. Without increasing the size of the support plate and the cabin section shell, more than three cases cannot be installed. Figure 4 As shown in the figure, assuming that the width of the support plate is 440 mm and the width of a single case is 150 mm, at most three cases can be installed, and the distance between the cases is too close to achieve good heat dissipation effect; it can be seen that the existing case structure cannot fully utilize the internal space of the cabin section shell to set more equipment and achieve good heat dissipation. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the present application provides a conformal case structure which can improve the heat dissipation effect of the board card and also improve the capacity of the board card.

[0004] The technical scheme of the present application is as follows: the present application provides a conformal case structure, which comprises a cabin shell, the inner wall of the cabin shell is provided with a plurality of guide rails for inserting a board card in a circumferential direction, and the guide rails extend along the axial direction of the cabin shell.

[0005] Further, the cabin shell is in a circular tube shape, and the plurality of board cards are arranged in a ring array in the cabin shell.

[0006] Further, two circumferentially adjacent guide rails are used for fixing one board card, one side of the guide rail is provided with a guide rail groove for guiding the insertion and extraction of the board card, and the guide rail grooves on the two guide rails for fixing the same board card are oppositely arranged.

[0007] Further, the guide rails are arranged on the inner wall of the cabin shell in a circumferential direction, at least one board card is arranged between two circumferentially adjacent guide rails, guide rail grooves are arranged on both sides of the guide rail for guiding the insertion and extraction of the board card, and the guide rail grooves on different sides of the guide rail are used for fixing different board cards.

[0008] Further, when the number of board cards arranged between two circumferentially adjacent guide rails is more than two, the board cards arranged between the two circumferentially adjacent guide rails are arranged in a radial direction of the cabin shell.

[0009] Further, the wide surface of the board card faces the inner wall of the cabin shell, and there is a gap between the wide surface of the board card and the inner wall of the cabin shell; since the wide surface of the board card is the heat dissipation surface of the board card, when the wide surface of the board card is directly opposite the inner wall of the cabin shell between the two guide rails where the board card is arranged, it is also beneficial for the heat of the board card to be conducted to the inner wall of the cabin shell through air, thereby sharing part of the heat dissipation pressure.

[0010] Further, the present application further comprises a cabin cover, the cabin cover is in a circular shape, and the cabin cover is used for covering the two end openings of the cabin shell.

[0011] Further, the inner cabin shell is in a circular tube shape, the guide rail comprises a lower fixed guide rail, the lower end of the lower fixed guide rail is fixed on the inner wall of the cabin section shell, and the upper end of the lower fixed guide rail is fixedly connected with the outer wall of the inner cabin shell; the outer wall of the inner cabin shell is provided with a plurality of upper fixed guide rails in a circumferential direction, and one upper fixed guide rail is arranged on both sides of the upper end of each lower fixed guide rail, and the upper fixed guide rail extends along the axial direction of the cabin section shell; the lower end of each lower fixed guide rail is provided with two first guide rail grooves, and the opening direction of the first guide rail groove is towards the central axis of the cabin section shell; the upper end of the lower fixed guide rail and the upper fixed guide rail on the corresponding side form a second guide rail groove, and the first guide rail groove and the second guide rail groove on the same side in the circumferential direction of the lower fixed guide rail are oppositely arranged and used for fixing a board card; and the inner cabin shell is coaxially arranged in the cabin section shell through the lower fixed guide rail.

[0012] Further, the narrow surface of the board card faces the outer wall of the inner cabin shell.

[0013] Further, the cabin cover is annular, and is used for covering the two end openings of the cabin section shell; and the cabin cover can cover the annular space formed between the cabin section shell and the inner cabin shell for accommodating all the board cards.

[0014] Further, the cabin section shell is further provided with an annular back plate, and the back plate is used for plug-in cooperation with the plurality of board cards to realize interconnection between the board cards.

[0015] Further, the two sides of the board card are provided with locking strips, the locking strips are used for locking cooperation with the corresponding guide rail grooves formed on the guide rail to realize fixation of the board card after plug-in installation; and the board card is further provided with a puller for facilitating pulling out of the board card from the guide rail.

[0016] By the above technical scheme, the cabin section shell is used to replace the existing case shell, the shape structure of the existing cabin section shell is directly utilized, the support plate and the case shell and other related structures are omitted, cost is saved, the guide rail for mounting and positioning the board card is directly laid in the cabin section shell, the board card can directly conduct heat to the cabin section shell through the guide rail, the heat transfer path when the board card generates heat is shortened, the board card heat dissipation efficiency and effect are improved, and the heat dissipation reliability and service life are improved; in addition, the distribution and arrangement form of the guide rail enables the board cards to be arranged in an annular array in the cabin section shell, good heat dissipation is ensured, and the board card capacity is improved.

[0017] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1is a structural schematic diagram of a cabin section device structure in the prior art.

[0019] Figure 2 is a cooperation schematic diagram of a cabinet and a support plate in the prior art.

[0020] Figure 3 is an exploded structural schematic diagram of a cabinet in the prior art.

[0021] Figure 4 is a size schematic diagram of a support plate and a cabinet in the prior art.

[0022] Figure 5 is a three-dimensional structural schematic diagram of one embodiment of a conformal cabinet structure of the present application.

[0023] Figure 6 is a front view schematic diagram of Figure 5

[0024] Figure 7 is a schematic diagram when no board card is installed in one embodiment of a conformal cabinet structure of the present application.

[0025] Figure 8 is a front view schematic diagram of Figure 7

[0026] Figure 9 is a three-dimensional structural schematic diagram of one embodiment of a conformal cabinet structure of the present application.

[0027] Figure 10 is a front view schematic diagram of Figure 9

[0028] Figure 11 is a three-dimensional schematic diagram when no board card is installed in one embodiment of a conformal cabinet structure of the present application.

[0029] Figure 12 is a front view schematic diagram of Figure 11

[0030] Figure 13 is an assembly exploded schematic diagram of a board card in one embodiment of a conformal cabinet structure of the present application.

[0031] Figure 14 is a cooperation schematic diagram of a board card and a guide rail in one embodiment of a conformal cabinet structure of the present application.

[0032] Figure 15 is a front view schematic diagram of Figure 14

[0033] Figure 16 is an exploded schematic diagram of a board card and a guide rail in one embodiment of a conformal cabinet structure of the present application.

[0034] Figure 17 ​​​​​is the rail perspective view in the second embodiment of the conformal case structure of the present application.

[0035] Figure 18 is the rail perspective view in the second embodiment of the conformal case structure of the present application.

[0036] Figure 19 is the explosion view of the hatch and the cabin section shell in the second embodiment of the conformal case structure of the present application.

[0037] Figure 20 is the three-dimensional structure schematic view of the third embodiment of the conformal case structure of the present application.

[0038] Figure 21 is the perspective view schematic view of Figure 20 .

[0039] Figure 22 is the three-dimensional schematic view of the third embodiment of the conformal case structure of the present application when the board card is not installed.

[0040] Figure 23 is the perspective view schematic view of Figure 22 .

[0041] Figure 24 is the assembly schematic view of the board card in the third embodiment of the conformal case structure of the present application.

[0042] Figure 25 is the assembly schematic view of the single board card and the corresponding lower fixed rail and upper fixed rail in the third embodiment of the conformal case structure of the present application.

[0043] Figure 26 is the perspective view schematic view of Figure 25 .

[0044] Figure 27 is the explosion schematic view of the single board card and the rail in the third embodiment of the conformal case structure of the present application.

[0045] Figure 28 is the position schematic view of each lower fixed rail and the two upper fixed rails matched in the third embodiment of the conformal case structure of the present application.

[0046] Figure 29 is the explosion view of the hatch and the cabin section shell in the third embodiment of the conformal case structure of the present application. DETAILED DESCRIPTION

[0047] The technical solutions of the present application are further described in detail below in combination with the drawings and the preferred embodiments.

[0048] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0049] As Figures 5 to 29 A conformal chassis structure, comprising a cabin shell 1, the cabin shell 1 is a circular pipe, the inner wall of the cabin shell 1 is provided with a plurality of guide rails 2 for mounting board card 3 in the circumferential direction, so that a plurality of board cards 3 are distributed in a ring array in the cabin shell 1. The guide rail 2 extends along the axial direction of the cabin shell 1, so that the plug-in direction of the board card 3 is the axial direction of the cabin shell. Since the guide rail is directly laid on the inner wall of the cabin shell 1, after the board card 3 is installed on the corresponding guide rail 2, the heat generated by the board card can be directly transmitted to the cabin shell through the corresponding guide rail, without using the existing chassis and support plate structure, at this time the cabin shell as a new chassis shell, can shorten the heat transfer path, can effectively reduce the board card working temperature; and, since a plurality of board cards are arranged in a ring array in the circumferential direction in the cabin shell, more number of board cards can be arranged in the cabin shell, improve the heat dissipation capacity while improving the board card capacity.

[0050] The present application proposes the following three distribution forms of guide rails, and will be described in detail in combination with the following three embodiments of the conformal chassis structure:

[0051] Embodiment one of a conformal chassis structure: the first distribution form of guide rail is combined Figures 5 to 8 As shown, two circumferentially distributed guide rails 2 are used to fix and assemble one board card, one guide rail slot 21 is arranged on each guide rail 2, and the guide rail slots 21 on the two guide rails for fixing one board card are oppositely distributed, at this time the ratio of the number of guide rails 2 to the number of board cards 3 in the cabin shell is 2 to 1. Adjacent two board cards are spaced apart in the circumferential direction, and each board card is supported and heat-conducted by two independent guide rails, so that the circumferentially adjacent board cards hardly interfere with each other when dissipating heat. It is known that the front end face and the rear end face of the board card are larger in size, the front end face / rear end face of the board card is defined as a wide face, and the remaining four peripheral faces of the board card (i.e. the thickness face of the board card) are narrow faces, the size of the wide face is obviously larger than that of the narrow face, so in this embodiment, the posture of the board card after being installed into the guide rail is that the wide face of the board card faces the inner wall of the cabin shell, or the wide face of the board card faces the central axis of the cabin shell. At this time, there is a small gap 30 between the wide face of the board card and the inner wall of the cabin shell, that is, the cold plate 31 of the board card (the heat dissipation face of the board card) faces the inner wall of the cabin shell, and the two have a certain heat conduction capacity through air.

[0052] Assuming that each board card heat consumption is 25W, if the existing technology in the chassis structure, can install 4 block board card, chassis total heat consumption is 100W, when the support plate installs 3 chassis, the support plate bears the heat dissipation heat consumption is the original 3 times, and the chassis between the distance is too close, the heat dissipation of the chassis will influence each other. And in the first kind of guide rail distribution setting embodiment, the cabin section shell as a new chassis carrier, plays the role of the chassis shell, through reasonable optimization can be installed in the end of the cabin section shell equivalent to three chassis inside the board card quantity, if in the other end of the cabin section shell processing the same guide rail, equivalent to contain the original 6 chassis board card capacity, also directly through the guide rail and the cabin section shell realizes the short path contact, improves the reliability of heat dissipation. Combined with Figure 6 Also can be set in the cabin section shell is annular structure backboard 4, after each board card is inserted into place, the interface of each board card and the backboard 4 are inserted into each other to realize contact conduction, which can realize the electrical interconnection between the circumferentially distributed multiple board cards.

[0053] As an extension, this embodiment only shows one board card between two guide rails, but in other embodiments, more than two board cards can be arranged between two guide rails. When two or more board cards are inserted between two adjacent guide rails, the board cards arranged between the two adjacent guide rails should be stacked along the radial direction of the cabin section shell, i.e. stacked along the thickness direction of the board cards. Correspondingly, the guide rail grooves arranged on one side of the guide rail are spaced apart in the thickness direction of the board cards to accommodate the insertion and positioning of multiple layers of board cards. For example, when two layers of board cards are inserted between two guide rails, the ratio of the number of guide rails to the number of board cards is 1:1.

[0054] Embodiment two of a conformal chassis structure: embodiment of the second kind of guide rail distribution setting form combined Figures 9 to 18 As shown, the guide rails 2 are evenly distributed and fixed on the inner wall of the cabin section shell, and one board card 3 is arranged between two circumferentially adjacent guide rails 2. At this time, each guide rail has one guide rail groove 21 on each side, and the two guide rail grooves 21 on each guide rail are used to position different board cards. The ratio of the number of guide rails to the number of board cards is 1:1. Since two board cards share one guide rail, more board cards can be arranged in the circumferential direction compared to the above-mentioned embodiment one, making the circumferential distribution of the board cards more compact, and the number of guide rails is less than that of embodiment one as a whole. The guide rails are evenly distributed in the circumferential direction, which is convenient for installation and fixation. In this embodiment, the wide surface of the board card also faces the inner wall of the cabin section shell (i.e. the wide surface of the board card faces the central axis of the cabin section shell), which is also beneficial to the heat conduction between the heat dissipation surface of the board card and the inner wall of the cabin section shell through air. In addition, an annular backboard is also arranged in the cabin section shell, which is used to realize the interconnection between the board cards.

[0055] Assuming that each board card heat consumption is 25W, if the existing technology in the chassis structure, can install 4 pieces of board card, chassis total heat consumption is 100W, when the support plate installation 3 chassis, support plate bear the heat dissipation heat consumption is the original 3 times, and the distance between the chassis is too close, the heat dissipation of chassis will influence each other. In the embodiment, the cabin section shell as a new chassis carrier, plays the role of chassis shell, not only can accommodate 12 pieces of the same size board card, but also directly through the guide rail and cabin section shell to realize the short path contact, improve the reliability of heat dissipation, effectively reduce the mutual influence of the board card between the heat dissipation, help the board card cooling efficiently.

[0056] As an extension, the embodiment only shows that one board card is arranged between two circumferentially adjacent guide rails, but in other embodiments, more than two board cards can be arranged between adjacent guide rails. When more than two board cards are inserted between two adjacent guide rails, the board cards arranged between the two adjacent guide rails should be stacked along the radial direction of the cabin section shell, that is, the board cards are stacked along the thickness direction of the board cards. Correspondingly, the guide rail grooves arranged on both sides of the guide rail should be spaced apart in the thickness direction of the board cards to adapt to the insertion and positioning of multiple layers of board cards. For example, when two layers of board cards are inserted between two guide rails, the ratio of the number of guide rails to the number of board cards is 1:2.

[0057] As shown in Figure 19 In the first and second embodiments of the conformal chassis structure, the hatch covers 8 for sealing the two ends of the cabin section shell are circular, and the hatch covers are closed on the two end openings of the cabin section shell to protect the internal board cards.

[0058] A third embodiment of a conformal chassis structure: as shown in Figures 20 to 28In this embodiment, the guide rail includes a lower fixed guide rail 22, and the conformal chassis structure also includes an inner cabin shell 5 in the shape of a circular tube, which is coaxially fitted inside the cabin section shell 1. The lower end 222 of the lower fixed guide rail 22 is fixed to the inner wall of the cabin section shell, and the upper end 221 of the lower fixed guide rail 22 is fixed to the outer wall of the inner cabin shell 5. The outer wall of the inner cabin shell is provided with a plurality of circumferentially distributed upper fixed guide rails 23, and each lower fixed guide rail 22 has an upper fixed guide rail 23 spaced apart on both sides of its upper end. The upper fixed guide rails extend along the axial direction of the cabin shell. The lower end 222 of each lower fixed guide rail 22 is provided with two first guide rail grooves 24, the opening direction of the first guide rail grooves 24 facing the central axis of the cabin shell. The upper end 221 of each lower fixed guide rail forms a second guide rail groove 25 between the upper end 221 of each lower fixed guide rail and the corresponding upper fixed guide rail 23. The first guide rail groove and the second guide rail groove on the same side of the lower fixed guide rail in the circumferential direction cooperate to fix a plate. The narrow side (thick side of the plate) of the plate faces the central axis of the cabin shell. In this embodiment, one lower fixed guide rail and two matching upper fixed guide rails cooperate to fix two plates. The inner cabin shell 5 is coaxially fixed inside the cabin shell 1 by being fixed to the upper ends of the plurality of lower fixed guide rails.

[0059] In this embodiment, the installed board is perpendicular to the board in Embodiments 1 / 2 above, and the width extension direction of the board is perpendicular to the circumferential extension direction of the compartment shell. This board arrangement makes fuller use of the internal space of the compartment shell (the space near the central axis), thus allowing for the arrangement of a larger number of boards within the compartment shell. Furthermore, due to the presence of an inner compartment shell 5, the inner wall of the inner compartment shell 5 is also a cooling surface 51 in contact with the external environment. The heat from the board can also be transferred to the inner compartment shell 5 through the upper end 221 of the lower fixed guide rail and the upper fixed guide rail 23, and heat exchange is achieved between the inner compartment shell and the external environment. Figure 29 As shown, the hatch in this embodiment is annular, and the annular hatch is compatible with the concentrically arranged compartment shell and inner shell. The hatch covers the annular space formed between the compartment shell and the inner shell to accommodate all the circuit boards, protecting the internal circuit boards without affecting the heat dissipation of the compartment shell and the inner shell. In addition, an annular backplate is also provided inside the compartment shell, which is used to realize electrical interconnection between the circuit boards.

[0060] In the third embodiment of the conformal chassis structure, because the thickness of the board occupies the circumferentially extending space in the cabin shell, more board cards, such as 16 board cards, can be arranged in the circumferential direction of the inner wall of the cabin shell. Although this way accommodates more board cards in the same space, which may cause the total heat consumption to increase, because the inner wall of the cabin shell is increased as an additional cooling surface, the heat dissipation area of the present application contacting the low-temperature environment is increased, and the embodiment still has good heat dissipation capacity in actual use, and the internal space of the cabin shell is more fully and efficiently utilized.

[0061] In the present application, locking strips 6 and pullers 7 are arranged on the board cards. The locking strips are used to interfere fit with the inner wall of the corresponding guide rail groove after the board card is inserted into place to realize the insertion positioning of the board card. In the present embodiment, two locking strips are arranged on each board card. The puller is used to provide a force point when the board card needs to be pulled out, which is beneficial to disassemble the board card. Because the structure and working principle of the locking strip and the puller are prior art, they will not be described again.

[0062] In summary, the cabin shell is used to replace the existing chassis shell in the present application, and the support plate and the related structure of the chassis shell are omitted. The guide rail for installing the board card is directly laid in the cabin shell, the heat transfer path is shortened, the heat dissipation efficiency and effect are improved, the heat dissipation reliability and life of the board card are improved, and more board cards can be accommodated in the cabin shell, and the equipment capacity is improved.

[0063] In the above embodiments of the conformal chassis structure, the cabin shell is in the form of a circular pipe, which is the preferred embodiment. However, in other embodiments, the cabin shell can be in the form of a regular polygonal pipe, such as a regular hexagon or a regular dodecagon, or a non-standard polygonal pipe, such as a trapezoidal pipe or an L-shaped pipe. In summary, the cabin shell can be directly used as an outer shell of the equipment, or as an inner shell of the equipment. When used as an inner shell of the equipment, the shape of the cabin shell corresponds to the shape of the outer shell of the equipment, and the cabin shell is arranged in the outer shell of the equipment, that is, the shape and size of the cabin shell are scaled down from the shape and size of the outer shell of the equipment.

[0064] The above is only a preferred embodiment of the present application, and the details are not described. Any skilled person in the art can make any simple modification, equivalent change and modification to the above embodiment according to the technical essence of the present application without departing from the scope of the technical solution of the present application.

Claims

1. A conformal chassis structure comprising a bay housing, characterised in that: The inner wall of the compartment shell is provided with a number of guide rails for inserting circuit boards along the circumferential direction. The guide rails extend along the axial direction of the compartment shell, and the circuit boards are arranged in a ring array inside the compartment shell. It also includes an inner cabin shell. The guide rails include a lower fixed guide rail, the lower end of which is fixed to the inner wall of the cabin shell, and the upper end of which is fixed to the outer wall of the inner cabin shell. Several upper fixed guide rails are distributed circumferentially on the outer wall of the inner cabin shell, and each lower fixed guide rail has an upper fixed guide rail spaced apart on both sides of its upper end. The upper fixed guide rails extend axially along the cabin shell. Each lower fixed guide rail has two first guide rail grooves at its lower end, with the opening direction of the first guide rail grooves facing the central axis of the cabin shell. A second guide rail groove is formed between the upper end of the lower fixed guide rail and the corresponding upper fixed guide rail. The first and second guide rail grooves on the same side of the lower fixed guide rail are distributed opposite each other and used to fix a plate. The inner cabin shell is coaxially fitted inside the cabin shell through the lower fixed guide rails. The cabin shell also has a ring-shaped back plate, which is used to insert and cooperate with several plates to realize the interconnection between the plates.

2. A conformal chassis structure according to claim 1, wherein: The hull of the compartment is cylindrical.

3. The conformal chassis structure of claim 1, wherein: The narrow side of the board faces the outer wall of the inner hull.

4. The conformal chassis structure of claim 1, wherein: It also includes a hatch, which is ring-shaped and used to cover the openings at both ends of the compartment shell. The hatch covers the annular space formed between the compartment shell and the inner shell to accommodate all the plates.

5. The conformal chassis structure of claim 1, wherein: The board has locking strips on both sides, which are used to lock and engage with the corresponding guide rail grooves to fix the board in place after it is inserted; the board also has a puller to help pull the board out of the guide rail.

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