CN114340369A - Reinforced electromagnetic shielding case - Google Patents
Reinforced electromagnetic shielding case Download PDFInfo
- Publication number
- CN114340369A CN114340369A CN202210028287.3A CN202210028287A CN114340369A CN 114340369 A CN114340369 A CN 114340369A CN 202210028287 A CN202210028287 A CN 202210028287A CN 114340369 A CN114340369 A CN 114340369A
- Authority
- CN
- China
- Prior art keywords
- plate
- guide rail
- rail plate
- cover plate
- electromagnetic shielding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a reinforced electromagnetic shielding case which comprises a case shell, wherein the case shell comprises a left side plate, a right side plate, an upper cover plate, a lower cover plate and a rear cover plate; a left guide rail plate, a middle guide rail plate and a right guide rail plate are arranged in the case shell, and a plurality of different installation areas for installing the plug-in are formed among the case shell, the left guide rail plate, the middle guide rail plate and the right guide rail plate; the invention forms a case which is convenient to produce and assemble, can be flexibly configured and used, has high mechanical strength, light weight, strong impact and vibration resistance, strong corrosion resistance and excellent electromagnetic shielding efficiency, and is particularly suitable for application scenes of complex geographic environment, variable climatic environment, severe electromagnetic environment and the like through a case composition structure with clear levels, a modularized part combination scheme, a reasonable and reliable part connection mode and generalized and refined part design.
Description
Technical Field
The invention relates to the technical field of electronics, communication and national defense military industry, in particular to a reinforced electromagnetic shielding case.
Background
In the fields of electronics, communication, national defense and military industry and the like, electronic components, electromechanical components and mechanical parts are generally assembled into functional modules such as plug-ins, back plates and the like, then the plug-ins and the back plates are installed in a cabinet, and then one or a plurality of the cabinets are installed in the cabinet to form an equipment system in the fields of electronics, communication, national defense and military industry and the like.
The prior similar chassis has more or less problems in design and use, some chassis are not reasonable enough in part combination mode and connection mode, the structural hierarchy division is unclear, the number of parts is numerous, and the detachable connection modes such as screws, washers and nuts are excessively used, so that the requirements on mechanical strength, rigidity, impact resistance and vibration resistance in complex geographic environment, variable climatic environment and various application scenes are difficult to meet; in the aspect of electromagnetic compatibility design, the existing chassis lacks of integral and comprehensive consideration, the processing of various gaps between the chassis and the plug-in units arranged inside the chassis and the use of electromagnetic shielding materials are not sufficient, and particularly, the design consideration of detailed structures at the connection and matching positions of the components of the chassis is not sufficient, so that the chassis cannot achieve effective electromagnetic shielding efficiency, and cannot meet the requirements of equipment on electromagnetic shielding in a complex and severe electromagnetic environment; the machine case is not fine enough in the aspects of functional design and part process scheme selection, lacks reasonable structural layout, lacks optimized part design and lacks reasonable weight reduction design, and the machine case is often not beautiful enough, has heavier weight, is complex in production and assembly, is not flexible enough in application configuration, and is not convenient enough to operate and use.
Therefore, a reinforced electromagnetic shielding case is needed to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and designs a reinforced electromagnetic shielding case.
The invention realizes the purpose through the following technical scheme:
a reinforced electromagnetic shielding case comprises a case shell, wherein the case shell comprises a left side plate, a right side plate, an upper cover plate, a lower cover plate and a rear cover plate; a left guide rail plate, a middle guide rail plate and a right guide rail plate are arranged in the case shell, and a plurality of different installation areas for installing the plug-in are formed among the case shell, the left guide rail plate, the middle guide rail plate and the right guide rail plate; the upper end face and the lower end face of the left side plate and the right side plate are respectively provided with a first electromagnetic shielding strip; a third electromagnetic shielding strip is arranged among the left side plate, the right side plate and the rear cover plate; a second electromagnetic shielding strip is arranged among the upper cover plate, the lower cover plate and the rear cover plate; the front ends of the left guide rail plate, the middle guide rail plate and the right guide rail plate on the front surface of the case are respectively provided with a fourth electromagnetic shielding strip; a fifth electromagnetic shielding strip is vertically arranged on the inner side of the front end of the left side plate of the case; and a sixth electromagnetic shielding strip and a seventh electromagnetic shielding strip which are arranged along the length direction of the chassis lower cover plate are arranged on the top surface of the front end of the chassis lower cover plate.
Specifically, the upper part and the lower part of the left side plate and the right side plate are respectively provided with a first characteristic flange, the two ends of the upper cover plate and the lower cover plate are respectively provided with a second characteristic flange, the first characteristic flanges on the left side plate and the right side plate are respectively matched and connected with the second characteristic flanges on the upper cover plate and the lower cover plate, the matching and connecting parts are all mutually nested matching structures, and the matching surfaces of the matching structures are formed into labyrinth-shaped depth gaps which are bent for multiple times; after the assembly and connection are completed, the first electromagnetic shielding strip is placed in the labyrinth-shaped depth gap and is in a state of compressing and filling the gap.
Specifically, grooves are formed in the rear ends of the left side plate, the right side plate, the upper cover plate and the lower cover plate, two second electromagnetic shielding strips are placed in the grooves corresponding to the upper cover plate and the lower cover plate respectively, and two third electromagnetic shielding strips are placed in the grooves corresponding to the left side plate and the right side plate respectively; and after the rear cover plate is installed, L-shaped gaps are formed among the third characteristic flanges of the rear cover plate and the left side plate, the right side plate, the upper cover plate and the lower cover plate respectively, and meanwhile, in the L-shaped gaps, the second electromagnetic shielding strips and the third electromagnetic shielding strips are in a compressed gap filling state.
Specifically, the left side plate and the right side plate are respectively connected with an upper cover plate and a lower cover plate of the chassis by rivets, and the chassis shell is connected with the left guide rail plate, the middle guide rail plate and the right guide rail plate by rivets; the left side plate, the right side plate, the upper cover plate and the lower cover plate are all connected with the rear cover plate through screws.
Specifically, the left guide rail plate, the middle guide rail plate and the right guide rail plate are arranged in parallel.
Specifically, a left suspension loop is mounted on the outer side of the front end of the left side plate, and a right suspension loop is mounted on the outer side of the front end of the right side plate.
The left guide rail plate is arranged close to the left side plate and comprises a left front upright post, a left rear upright post, a partition plate and a sheet metal forming guide rail plate; the left front upright post, the left rear upright post, the partition plate and the sheet metal forming guide rail plate form a cuboid structure; a plurality of characteristic channels are arranged on one side of the sheet metal forming guide rail plate, which faces the middle guide rail plate.
The middle guide rail plate is arranged between the left guide rail plate and the right guide rail plate and comprises a middle front upright post, a middle rear upright post and two sheet metal forming guide rail plates; the middle front upright post, the middle rear upright post and the two sheet metal forming guide rail plates form a cuboid structure.
Specifically, the structure of the right guide rail plate is the same as that of the left guide rail plate, and the right guide rail plate and the left guide rail plate are symmetrical based on the middle guide rail plate.
Preferably, the outer surface of the chassis housing is provided with an electrostatic plastic-sprayed layer.
The invention has the beneficial effects that:
the case which is convenient to produce and assemble, can be flexibly configured and used, has high mechanical strength, light weight, strong impact and vibration resistance, strong corrosion resistance and excellent electromagnetic shielding efficiency is formed by a clear case composition structure, a modularized part combination scheme, a reasonable and reliable part connection mode and generalized and refined part design, and is particularly suitable for application scenes such as complex geographic environments, variable climatic environments, severe electromagnetic environments and the like.
Drawings
Fig. 1 is an exploded view of an exemplary embodiment of a ruggedized electromagnetic shield enclosure of the present invention.
FIG. 2 is an exploded view of the joint between the left and right side plates and the upper and lower cover plates and an enlarged view of a partial fitting structure.
FIG. 3 is an enlarged view of the joint between the left and right side plates and the upper and lower cover plates and a partial fitting structure.
Fig. 4 is a schematic view of the installation of the left guide rail plate, the middle guide rail plate and the right guide rail plate inside the chassis.
Fig. 5 is an exploded view of the rear cover of the chassis and a partial mating structure.
Fig. 6 is a schematic view of a rear cover plate of a chassis and a partial matching structure.
Fig. 7 is an exploded view and a partial fitting structure view of the rear cover of the chassis.
Fig. 8 is a schematic view of the installation of the left hanger and the right hanger of the case.
Fig. 9 is an exploded view of the left track plate assembly and key parts.
FIG. 10 is a sectional view of the aluminum alloy profile of the front upright of the left and right guide rail plates.
FIG. 11 is a sectional view of the aluminum alloy profile of the rear upright of the left and right guide rail plates.
Fig. 12 is an exploded view of the components of the middle rail plate assembly and a detailed structure of key parts.
FIG. 13 is a sectional view of the aluminum alloy profile of the front upright of the middle guide rail plate.
FIG. 14 is a sectional view of the aluminum alloy profile of the rear upright of the middle guide rail plate.
Fig. 15 is an exploded view of the right track plate assembly and key parts.
Fig. 16 is an exemplary embodiment of a ruggedized electromagnetic shielding chassis mounting insert, backplane forming device system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of the embodiments generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1, the present invention is a reinforced electromagnetic shielding case, which comprises: the left side plate 1, the right side plate 2, the upper cover plate 3, the lower cover plate 4 and the rear cover plate 5 form a chassis shell; a left guide rail plate 6, a middle guide rail plate 7 and a right guide rail plate 8 are arranged in the shell of the case, and a plurality of areas for installing different functional plug-ins are formed in the case; a left hanging lug 9 and a right hanging lug 10 are respectively arranged on the outer sides of the front ends of a left side plate 1 and a right side plate 2 of the machine box (the machine box can be arranged on an installation upright post in the machine box through the left hanging lug 9 and the right hanging lug 10); the upper end face and the lower end face of the left side plate 1 and the right side plate 2 of the case are respectively provided with a first electromagnetic shielding strip 15; a third electromagnetic shielding strip 26 is arranged between the left side plate 1, the right side plate 2 and the rear cover plate; a second electromagnetic shielding strip 25 is arranged between the upper cover plate 3, the lower cover plate 4 and the rear cover plate; the front ends of the left guide rail plate 6, the middle guide rail plate 7 and the right guide rail plate 8 on the front surface of the case are respectively provided with a fourth electromagnetic shielding strip 74; a fifth electromagnetic shielding strip 75 is arranged on the inner side of the front end of the left side plate 1 of the case; a sixth electromagnetic shielding strip 76 and a seventh electromagnetic shielding strip 77 are respectively installed on the inner side of the front end of the lower cover plate 4 of the chassis from left to right.
As shown in fig. 2 and 3, the left side plate 1 and the right side plate 2 of the reinforced electromagnetic shielding chassis are respectively connected with the upper cover plate 3 and the lower cover plate 4 of the chassis by means of rivets 16. At the matching position, the upper part and the lower part of the left side plate 2 and the right side plate 3 are respectively provided with a first characteristic flange 13, the left end and the right end of the upper cover plate 3 and the lower cover plate 4 are respectively provided with a second characteristic flange 14, and during assembly, the end planes of the first characteristic flanges 13 above and below the left side plate 1 and the right side plate 2 are respectively stuck with an electromagnetic shielding foam material 15. Riveting and installing by using a rivet 16 through a first characteristic hole 17 arranged on the second characteristic flange 14 of the upper cover plate 1 and a first characteristic hole 17 arranged on the first characteristic flange 13 of the left side plate 1 or the right side plate 2 in sequence; rivet 16 is used for riveting and mounting through a first characteristic hole 17 arranged on the second characteristic flange 14 of the lower cover plate 4 and a first characteristic hole 17 arranged on the first characteristic flange 13 of the left side plate 1 or the right side plate 2. After the installation is completed, the first electromagnetic shielding strips 15 are compressed and filled in the gaps between the upper cover plate 3 and the left side plate 1, the right side plate 2 or the lower cover plate 4 and the left side plate 1 and the right side plate 2 respectively. The first electromagnetic shielding strip 15 is made of an electromagnetic shielding foam material.
As shown in fig. 4, the reinforced electromagnetic shielding chassis is coupled with the left guide rail plate 6, the middle guide rail plate 7 and the right guide rail plate 8 by rivets 18 passing through second characteristic holes 19 formed in the upper cover plate 3 and the lower cover plate 4.
As shown in fig. 5, 6, and 7, the left side plate 1, the right side plate 2, the upper cover plate 3, and the lower cover plate 4 of the reinforced electromagnetic shielding chassis are provided with third characteristic holes 20 and grooves 22 at the rear portions, and press-riveting nuts 21 are installed in the third characteristic holes 20. And a first screw 23 is used for penetrating through a fourth characteristic hole 24 arranged on the rear cover plate 5 and is in threaded connection with the corresponding press riveting nuts 21 on the left side plate 1, the right side plate 2, the upper cover plate 3 and the lower cover plate 4. Two second electromagnetic shielding strips 25 are respectively placed in the grooves 22 corresponding to the upper cover plate 3 and the lower cover plate 4, and two third electromagnetic shielding strips 26 are respectively placed in the grooves 22 corresponding to the left side plate 1 and the right side plate 2. The third characteristic flange 27 is arranged around the rear cover plate 5, after the rear cover plate 5 is installed, an L-shaped gap is formed between the rear cover plate 5 and a case shell formed by the left side plate 1, the right side plate 2, the upper cover plate 3 and the lower cover plate 4, and meanwhile, in the L-shaped gap, the second electromagnetic shielding strips 25 and the third electromagnetic shielding strips 26 are in a state of compressing and filling the gap.
As shown in fig. 5, 6 and 7, the left side plate 1 and the right side plate 2 are respectively provided with a feature flange 107, the feature flange 107 is provided with a third feature hole 20, a vertical rectangular cross-section groove 109 and a horizontal rectangular cross-section groove 110 (the groove 22 includes the vertical rectangular cross-section groove 109 and the horizontal rectangular cross-section groove 110), and the vertical rectangular cross-section groove 109 and the horizontal rectangular cross-section groove 110 are respectively internally provided with a second electromagnetic shielding strip 25 and a third electromagnetic shielding strip 26; a press riveting nut 21 is arranged in the third characteristic hole 20; the rear cover plate 5 is provided with a plurality of mounting holes 24; after the rear cover plate 5 is installed, the gap formed by the mating surface of the rear cover plate 5 and the main structure of the chassis is a labyrinth-shaped depth gap 106 which is bent many times when viewed from the cross section. When the assembly coupling is completed, the first electromagnetic shielding strips 15 will be respectively in the middle of the labyrinth-like depth gap 105 and in a compressed filled state. The second electromagnetic shielding strip 25 and the third electromagnetic shielding strip 26 are in the middle of the labyrinth-like depth slit 106 and in a state of compression filling.
As shown in fig. 8, the front ends of the left and right sides of the reinforced electromagnetic shielding chassis are respectively provided with a left suspension loop 9 and a right suspension loop 10. A first hanger mounting hole 88 is formed in the left side plate 9, and a second hanger mounting hole 89 is formed in the right side plate; a third hanger mounting hole 28, a first oblong hole 29, a ground threaded hole 30 and a ground mark 84 are arranged on the left hanger 9, and a fourth hanger mounting hole 85 and a second oblong hole 86 are respectively arranged on the right hanger 10; a double-sided countersunk head rivet 87 penetrates through a third hanger mounting hole 28 arranged on a left hanger 9 of the case and a corresponding first hanger mounting hole 88 on a left side plate 1 of the case for riveting; a double-sided countersunk rivet 87 passes through a fourth lug mounting hole 85 formed on the right lug 10 of the case and a second lug mounting hole 89 formed on the right side plate of the case to be riveted. The grounding of the chassis is completed by screwing the bolts into the grounding threaded holes 30 to fix the grounding wire. The reinforced shielding case is installed in the cabinet, and needs to be connected with a screw hole or a floating nut on a mounting column of the cabinet after a mounting screw penetrates through the first oblong hole 29 and the second oblong hole 86.
As shown in fig. 9, 10 and 11, the left guide rail plate 6 is composed of a left front pillar 31, a left rear pillar 32, a partition plate 33, a sheet metal forming guide rail plate 34, a press-riveting stud 35, a countersunk rivet 36 and a threaded strip 37.
The left front upright column 31 is made of aluminum alloy section bar, the section bar structure is provided with an L-shaped flange 45 at the front end, a square body structure 46, a left front upright column U-shaped flange 47 at the rear end, a left front upright column connecting rib 48 of the left front upright column U-shaped flange 47 and the body structure, a first middle-character-shaped groove 49 on the body structure and a first through hole 50 which penetrates through the body structure, and the left front upright column is also provided with a left guide rail plate mounting hole 51;
the left rear upright post 32 is made of aluminum alloy section bar, and the section bar structure is provided with an I-shaped main body structure 53, a front end left rear upright post U-shaped flange 52, a left rear upright post connecting rib 54 of the I-shaped main body structure 53, a second through hole 55, a left rear upright post first mounting hole 56 and a left rear upright post second mounting hole 57 which penetrate through the left rear upright post U-shaped flange 52 and the I-shaped main body structure 53;
the isolation plate 33 is provided with a hole group consisting of a first isolation plate mounting hole 38, a second isolation plate mounting hole 39 and a hexagonal vent hole 40;
a plurality of characteristic channels 41, a first mounting hole 42 of the guide rail plate, a second mounting hole 43 of the guide rail plate and a third mounting hole 44 of the guide rail plate which are formed by rolling are arranged on the sheet metal forming guide rail plate 34; threaded holes 58 are provided in the threaded strips 37.
At the front end, a countersunk rivet 36 is used to penetrate through a second mounting hole 39 of the isolation plate on the isolation plate 33 and a corresponding mounting hole 51 of the left guide rail plate on the left front upright column 31; at the rear end, a countersunk rivet 36 is used to pass through the second mounting hole 39 of the isolation plate 33 and the corresponding second mounting hole 57 of the left rear upright post 32; finally, the partition plate 33 is fixed with the left front upright 31 and the left rear upright 32;
at the front end, a countersunk rivet 36 is used to penetrate through a guide rail plate second mounting hole 43 on the sheet metal forming guide rail plate 34 and a corresponding left guide rail plate mounting hole 51 on the left front upright post 31; at the rear end, a countersunk rivet 36 penetrates through a guide rail plate second mounting hole 43 on the sheet metal forming guide rail plate 34 and a corresponding left rear upright post second mounting hole 57 on the left rear upright post 32; finally, fixing the sheet metal forming guide rail plate 34 with the left front upright 31 and the left rear upright 32;
penetrating the third mounting hole 44 of the guide rail plate on the sheet metal forming guide rail plate 34 and the corresponding first mounting hole 38 of the isolation plate 33 by using the countersunk rivet 36; the partition plate 33 and the sheet metal forming guide rail plate 34 are further connected and fastened.
The threaded bar 37 is inserted into the first, central slot 49 of the left front upright 31. The clinch stud 35 is clinched into the left rear stud first mounting hole 56 of the left rear stud 32.
As shown in fig. 12, 13 and 14, the middle rail plate 7 is composed of a middle front upright 59, a middle rear upright 60, and two sheet metal forming rail plates 34, rivet pressing studs 35, countersunk rivets 36 and a threaded strip 37 which are the same as those used in the left rail plate 6. A plurality of characteristic channels 41, a first mounting hole 42 of the guide rail plate, a second mounting hole 43 of the guide rail plate and a third mounting hole 44 of the guide rail plate which are formed by rolling are arranged on the sheet metal forming guide rail plate 34;
the middle front upright 59 is made of aluminum alloy section, the section structure is provided with a square main body structure 63, a T-shaped flange 61, a middle front upright U-shaped flange 62, a middle front upright connecting rib 64 between the middle front upright U-shaped flange 62 and the square main body structure 63, a second middle-shaped groove 65 and a third through hole 66 which penetrates through the middle front upright 59, and the middle front upright 59 is also provided with a middle front upright mounting hole 67;
the middle and rear upright columns 60 are made of aluminum alloy section bars, and the section bars are provided with an N-shaped main body structure 69, a middle and rear upright column U-shaped flange 68, a middle and rear upright column connecting rib 70 between the middle and rear upright column U-shaped flange and the N-shaped main body structure 69, a fourth through hole 71, a middle and rear upright column first mounting hole 72 and a middle and rear upright column second mounting hole 73; threaded holes 58 are provided in the threaded strips 37.
Penetrating the guide rail plate second mounting hole 43 of the sheet metal forming guide rail plate 34 and the corresponding middle front upright mounting hole 67 on the middle front upright 59 and the corresponding middle rear upright first mounting hole 72 on the middle rear upright 60 respectively by using a countersunk rivet 36; fixing the sheet metal forming guide rail plate 34 with the middle front upright 59 and the middle rear upright 60; two threaded strips 37 are inserted into two second middle-shaped grooves 65 at the front end of the middle front upright 59 respectively. And riveting the riveting upright 35 into the middle rear upright second mounting hole 73 of the middle rear upright 60.
The application of the thread strip is as follows: when the plug-in unit is installed, the threaded holes in the threaded strips are used for being connected with the locking screws in the plug-in unit panel.
The purpose of the press riveting upright column is as follows: when the back plate is installed, the screws penetrate through the installation holes in the back plate and are connected with the threaded holes in the press riveting studs.
As shown in fig. 15, the right rail plate 8 is composed of a right front pillar 78, a right rear pillar 79, the same partition plate 33 as that of the left rail plate 6, the same sheet metal forming rail plate 34, a rivet pressing stud 35, a countersunk rivet 36, and a screw thread strip 37.
The right front upright 78 is made of the same aluminum alloy section as the left front upright 31 and has the same shape and section characteristics;
the right rear upright 79 uses the same aluminum alloy section bar as the left rear upright 32, and has the same shape and section characteristics;
the right guide rail plate 8 has the same structural form as the left guide rail plate 6, except that the structural arrangement is based on the symmetrical distribution of the middle guide rail plates 7.
The assembling method of the left guide rail plate 6 comprises the following steps: the partition plate 33 is fixed with the left front upright post 31 and the left rear upright post 32 through a second mounting hole 39 on the partition plate 33 and a corresponding left guide rail plate mounting hole 51 on the left front upright post 31 and a corresponding left rear upright post second mounting hole 57 on the left rear upright post 32 by using a countersunk rivet 36; the sheet metal forming guide rail plate 34, the left front upright post 31 and the left rear upright post 32 are fixed together by respectively using a countersunk rivet 36 to penetrate through a guide rail plate second mounting hole 43 on the sheet metal forming guide rail plate 34, a corresponding left guide rail plate mounting hole 51 on the left front upright post 31 and a corresponding left rear upright post second mounting hole 57 on the left rear upright post 32; the partition plate 33 and the sheet metal forming guide rail plate 34 are further connected and fastened by using the countersunk rivets 36 to penetrate through the corresponding third mounting holes 44 of the sheet metal forming guide rail plate 34 and the corresponding first mounting holes 38 of the partition plate 33. The threaded bar 37 is inserted into the first, central slot 49 of the left front upright 31. The clinch stud 35 is clinched into the left rear stud first mounting hole 56 of the left rear stud 32.
The installation method of the middle guide rail plate 7 comprises the following steps: the sheet metal forming guide rail plate 34 is fixed with the middle front upright post 59 and the middle rear upright post 60 by respectively using countersunk rivets 36 to penetrate through the guide rail plate second mounting holes 43 of the sheet metal forming guide rail plate 34 and the corresponding mounting holes 67 on the middle front upright post 59 and the corresponding characteristic holes 72 on the middle rear upright post 60; two threaded strips 37 are inserted into two second middle-shaped grooves 65 at the front end of the middle front upright 59 respectively. And riveting the riveting upright 35 into the middle rear upright second mounting hole 73 of the middle rear upright 60.
The installation method of the right guide rail plate 8 is as follows: the partition plate 33 is fixed with the right front upright post 78 and the right rear upright post 79 through the second mounting hole 39 of the partition plate 33 and the corresponding left guide rail plate mounting hole 51 on the right front upright post 78 and the corresponding mounting hole 82 on the right rear upright post 79 respectively by using the countersunk rivets 36; the sheet metal forming guide rail plate 34 is fixed with the right front upright post 78 and the right rear upright post 79 by respectively using countersunk rivets 36 to penetrate through the guide rail plate second mounting holes 43 of the sheet metal forming guide rail plate 34 and the corresponding right guide rail plate mounting holes 51 on the right front upright post 78 and the corresponding right rear upright post second mounting holes 57 on the right rear upright post 79; the partition plate 33 and the sheet metal forming guide rail plate 34 are further connected and fastened by using the countersunk rivets 36 to penetrate through the corresponding third mounting holes 44 of the sheet metal forming guide rail plate 34 and the corresponding first mounting holes 38 of the partition plate 33. The threaded strip 37 is inserted into the center-shaped slot 48 of the right front pillar 78. The clinch pillar 35 is clinched and mounted in the left rear pillar first mounting hole 56 of the right rear pillar 79.
Fig. 16 illustrates an exemplary embodiment of the ruggedized electromagnetic shielding enclosure after installation of the insert and the backplane to form the equipment system. The back plate 101 is mounted at the rear parts of the left guide rail plate 6, the middle guide rail plate 7 and the right guide rail plate 8 by respectively using second screws 103 to penetrate through mounting holes 102 on the back plate 101; the first plug-in unit 90, the second plug-in unit 91, the third plug-in unit 92, the fourth plug-in unit 93, the fifth plug-in unit 94, the sixth plug-in unit 95 and the seventh plug-in unit 96 are respectively inserted into each mounting area of the chassis, and when the plug-in units are inserted or pulled out, the plug-in units are smoothly pushed into or pulled out of the chassis by using the plug-in units 98 on the plug-in units and the flanges 99 on the chassis. Hexagonal hole group arrays 100 are arranged on the left side plate 1 and the right side plate 2 of the case, the plug-in units 96 are dust filter nets, and the plug-in units 96 are arranged between the right side plate 2 and the right guide rail plate 8; the plug-in 95 is a fan unit, and when the device works, the fan unit operates to cool the device, and other plug-ins can be flexibly configured in each installation area according to the requirement.
The left rail plate 6, the middle rail plate 7, and the right rail plate 8 are preferably arranged in parallel with each other.
The invention provides a modularized chassis combination and connection scheme. The left side plate, the right side plate, the upper cover plate and the lower cover plate of the case are connected by rivets, the left guide rail plate, the middle guide rail plate, the right guide rail plate, the upper cover plate and the lower cover plate are connected by rivets, and the purpose of adopting the non-detachable connection mode is to ensure higher strength and better impact resistance and vibration resistance. The rear cover plate of the case is connected with the main structure of the case formed by the parts by screws, and the detachable connection mode is adopted because the rear cover plate needs to be opened to install the bus back plate in practical use. The detachable connection mode and the non-detachable connection mode are matched for use, and the purpose is to ensure the strength, the rigidity, the shock resistance and the vibration resistance, and the convenience and the effectiveness of installation and production to the maximum extent on the premise of ensuring the use function of the case.
The invention provides a detailed matching structure of a left side plate, a right side plate, an upper cover plate and a lower cover plate of a machine case at a joint. The matching structure at the joint of the left and right side plates and the upper and lower cover plates is a mutually nested matching structure. At the matching structure, a gap formed by matching surfaces of the left side plate, the right side plate, the upper cover plate and the lower cover plate is a labyrinth-shaped depth gap bent for multiple times when viewed from the cross section of the gap; the main body structure of the case is formed by the left and right side plates and the upper and lower cover plates, the rear part of the main body structure is provided with a rear cover plate, and a gap formed by the matching surface of the rear cover plate and the main body structure of the case is also a labyrinth-shaped depth gap which is bent for many times.
The invention provides a case with excellent electromagnetic shielding performance. Compressing and filling electromagnetic shielding materials in the middle of a labyrinth-shaped deep gap formed between the left side plate, the right side plate, the upper cover plate and the lower cover plate of the case; the middle part of a labyrinth-shaped depth gap formed between the main structure of the case and the rear cover plate is also compressed and filled with an electromagnetic shielding material; simultaneously, front and rear upright posts contained by the upper and lower cover plates, the left and right side plates, the rear cover plate and the left, middle and right guide rail plates are all made of aluminum alloy materials and are treated by adopting a process of conductive oxidation of the surfaces of parts; and secondary part sheet metal forming guide rail plates and partition plates contained in the left, middle and right guide rail plates are subjected to part surface electro-galvanizing treatment. The measures ensure that the parts forming the chassis keep good conductive continuity at the matching connection part. In practical application, plug-in components with certain functions are installed on the front face of the case, gaps among the plug-in components and the case are designed and installed with corresponding electromagnetic shielding materials for electromagnetic sealing after the plug-in components are installed, and an equipment system formed by the whole reinforced electromagnetic shielding case has good electromagnetic shielding performance.
The invention adopts a protective plastic spraying process, only the outer surface of the case is subjected to electrostatic plastic spraying treatment, and the outer surface of the case shell is provided with an electrostatic plastic spraying layer; the conductive continuity of the connection matching part of the chassis part is ensured, the attractive appearance of the chassis can be kept, and the corrosion resistance of the chassis is ensured.
The invention provides a modularized combined case, which embodies the modularized splicing connection of the components of the case, and each modularized component has clear hierarchy, high universality and simple assembly; meanwhile, a plurality of standardized installation areas are formed in the case through the combined installation of the parts of the case. In practical application, plug-ins can be flexibly configured in each installation area, and a flexibly configured equipment system can be formed by installing the bus back plate at the rear parts of the left, middle and right guide rails.
Claims (10)
1. The utility model provides a reinforcement type electromagnetic shield machine case which characterized in that: the novel multifunctional cabinet comprises a cabinet shell, wherein the cabinet shell comprises a left side plate (1), a right side plate (2), an upper cover plate (3), a lower cover plate (4) and a rear cover plate (5); a left guide rail plate (6), a middle guide rail plate (7) and a right guide rail plate (8) are arranged in the case shell, and a plurality of different installation areas for installing the plug-in units are formed among the case shell, the left guide rail plate (6), the middle guide rail plate (7) and the right guide rail plate (8); the upper end surface and the lower end surface of the left side plate (1) and the right side plate (2) are respectively provided with a first electromagnetic shielding strip (15); a third electromagnetic shielding strip (26) is arranged between the left side plate (1), the right side plate (2) and the rear cover plate; a second electromagnetic shielding strip (25) is arranged between the upper cover plate (3), the lower cover plate (4) and the rear cover plate; a fourth electromagnetic shielding strip (74) is respectively arranged at the front ends of the left guide rail plate (6), the middle guide rail plate (7) and the right guide rail plate (8) on the front surface of the case; a fifth electromagnetic shielding strip (75) is vertically arranged on the inner side of the front end of the left side plate (1) of the case; and a sixth electromagnetic shielding strip (76) and a seventh electromagnetic shielding strip (77) which are arranged along the length direction of the chassis lower cover plate (4) are arranged on the top surface of the front end of the chassis lower cover plate.
2. The reinforced electromagnetic shielding case of claim 1, wherein: the upper parts and the lower parts of the left side plate (1) and the right side plate (2) are respectively provided with a first characteristic flange (13), the two ends of the upper cover plate (3) and the lower cover plate (4) are respectively provided with a second characteristic flange (14), the first characteristic flanges (13) on the left side plate (1) and the right side plate (2) are respectively matched and connected with the second characteristic flanges (14) on the upper cover plate (3) and the lower cover plate (4), the matched and connected parts are mutually nested matched structures, and the matched surfaces at the matched structures are formed into labyrinth-shaped depth gaps (105) which are bent for multiple times; after the assembly coupling is completed, the first electromagnetic shield strip (15) is placed in the labyrinth-like depth gap (105) in a compressed gap-filling state.
3. The reinforced electromagnetic shielding case of claim 1, wherein: grooves (22) are formed in the rear ends of the left side plate (1), the right side plate (2), the upper cover plate (3) and the lower cover plate (4), two second electromagnetic shielding strips (25) are respectively placed in the grooves (22) corresponding to the upper cover plate (3) and the lower cover plate (4), and two third electromagnetic shielding strips (26) are respectively placed in the grooves (22) corresponding to the left side plate (1) and the right side plate (2); all be provided with third characteristic flange (27) around the back shroud 5, after back shroud (5) installation, form the gap of L type between third characteristic flange (27) of back shroud (5) respectively and by left side board (1), right side board (2), upper cover plate (3), lower apron (4), simultaneously in the gap of L shape, second electromagnetic shield strip (25) and third electromagnetic shield strip (26) are in the compression and fill gap state.
4. The reinforced electromagnetic shielding case of claim 1, wherein: the left side plate (1) and the right side plate (2) are respectively connected with an upper cover plate (3) and a lower cover plate (4) of the case by rivets, and the case shell is connected with the left guide rail plate (6), the middle guide rail plate (7) and the right guide rail plate (8) by rivets (18); the left side plate (1), the right side plate (2), the upper cover plate (3) and the lower cover plate (4) are all connected with the rear cover plate (5) through screws (12).
5. The reinforced electromagnetic shielding case of claim 1, wherein: the left guide rail plate (6), the middle guide rail plate (7) and the right guide rail plate (8) are arranged in parallel.
6. The reinforced electromagnetic shielding case of claim 1, wherein: a left hanging lug (9) is arranged on the outer side of the front end of the left side plate (1), and a right hanging lug (10) is arranged on the outer side of the front end of the right side plate (2).
7. The reinforced electromagnetic shielding case of claim 1, wherein: the left guide rail plate (6) is arranged close to the left side plate (1), and the left guide rail plate (6) comprises a left front upright post (31), a left rear upright post (32), a partition plate (33) and a sheet metal forming guide rail plate (34); the left front upright post (31), the left rear upright post (32), the partition plate (33) and the sheet metal forming guide rail plate (34) form a cuboid structure; a plurality of characteristic channels (41) are arranged on one side of the sheet metal forming guide rail plate (34) facing the middle guide rail plate 7.
8. The reinforced electromagnetic shielding case of claim 7, wherein: the middle guide rail plate (7) is arranged between the left guide rail plate (6) and the right guide rail plate (8), and the middle guide rail plate (7) comprises a middle front upright post (59), a middle rear upright post (60) and two sheet metal forming guide rail plates (34); the middle front upright post (59), the middle rear upright post (60) and the two sheet metal forming guide rail plates (34) form a cuboid structure.
9. The reinforced electromagnetic shielding case of claim 8, wherein: the structure of the right guide rail plate (8) is the same as that of the left guide rail plate (6), and the right guide rail plate (8) and the left guide rail plate (6) are symmetrical based on the middle guide rail plate (7).
10. The reinforced electromagnetic shielding case of claim 1, wherein: and the outer surface of the chassis shell is provided with an electrostatic plastic spraying layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028287.3A CN114340369A (en) | 2022-01-11 | 2022-01-11 | Reinforced electromagnetic shielding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210028287.3A CN114340369A (en) | 2022-01-11 | 2022-01-11 | Reinforced electromagnetic shielding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114340369A true CN114340369A (en) | 2022-04-12 |
Family
ID=81025897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210028287.3A Pending CN114340369A (en) | 2022-01-11 | 2022-01-11 | Reinforced electromagnetic shielding case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114340369A (en) |
-
2022
- 2022-01-11 CN CN202210028287.3A patent/CN114340369A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140229398A1 (en) | Equipment cabinet | |
| US4502097A (en) | Control center having cabinet with improved lateral strength and safety | |
| EP0169598B1 (en) | Ventilation panel for electromagnetic shielding | |
| US6545850B1 (en) | Backplane power landing system | |
| US4752861A (en) | Housing for the accommodation of electrical assembly carriers | |
| CN114340369A (en) | Reinforced electromagnetic shielding case | |
| CN214154948U (en) | Anti-static structure for low-voltage cabinet circuit board | |
| CN201467577U (en) | Explosion-proof electrical appliance control cabinet | |
| CN201298675Y (en) | Low-voltage electrical control cabinet | |
| RU2390081C2 (en) | Body for electric power switchboard | |
| CN210432329U (en) | Connector for EMI-preventing door of cabinet | |
| CN201298676Y (en) | Low-voltage electrical control cabinet provided with ventilating window | |
| CN216437823U (en) | Based on rack for high stability server | |
| CN220857310U (en) | Inside bearing structure of outdoor cabinet | |
| CN218390297U (en) | RFID cabinet | |
| CN218920236U (en) | High-performance special variable frequency power supply anti-seismic structure | |
| CN217545317U (en) | Block terminal convenient to dismantle | |
| CN218568570U (en) | Anti-electromagnetic interference inductor | |
| CN216932304U (en) | Console convenient to transportation and transport | |
| CN216687028U (en) | Terminal piece mounting structure and elevator suitable for knapsack formula home use elevator sedan-chair frame | |
| CN2563886Y (en) | Communication box type machine box | |
| CN219592805U (en) | Network cabinet | |
| CN216775308U (en) | Multifunctional portable case and special profile | |
| CN217241134U (en) | Box inserting cabinet with sheet metal structure | |
| CN217766567U (en) | Novel metal electric-energy metering box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |