Electromagnetic shielding cabinet

Abstract

The invention provides an electromagnetic shielding cabinet which comprises stand columns, cross beams, longitudinal beams and connecting pieces, a cabinet frame beam and connecting bosses of eight three-way connecting pieces are installed in a matched mode, and a cabinet frame is constructed through welding; wherein the cabinet frame beam is composed of a connecting plate and first to seventh side plates which are symmetrically arranged on two sides of the connecting plate; the front door plate is connected with the frame beam through the door plate fixing connecting piece, and the first conductive foam front door plate and the second conductive foam front door plate are arranged on the inner side of the front door plate and the inner side of the side door plate. The cabinet frame beam and the three-way connecting piece serve as the basis to form the cabinet frame, the size of the cabinet is adjustable due to the fact that the size of the cabinet frame beam and the size of the cabinet frame are variable, the mounting holes are integrated in the three-way connecting piece of the frame beam, and the problems that in the related technology, the design and production efficiency of the cabinet is low, and the manufacturing cost is high are solved. The effects of improving the production efficiency and reducing the manufacturing cost are achieved.

Description

Technical Field

[0001] The present invention relates to the field of cabinets or drawers, and in particular to an electromagnetic shielding cabinet. Background Art

[0002] With the rapid development of the medical industry, the requirements for equipment integration are becoming increasingly higher, and the requirements for the structural reliability, device layout, and operating space of the cabinets that serve as the carriers of communication equipment are also becoming increasingly higher. In signal control, cabinets are generally made of cold-rolled steel plates or aluminum alloys to store signal and communication control equipment. They can provide protection for the stored equipment and electromagnetic interference shielding. Arranging equipment in an orderly and neat manner facilitates future equipment maintenance. With the innovative development of sheet metal processing technology, closed-section profiles have gradually become the mainstream form due to their advantages such as good rigidity and high strength. However, closed-section profiles still have some problems. Closed-section profiles occupy a large space, affecting the utilization rate of the cabinet's internal space.

[0003] An electromagnetic shielding cabinet is an electromagnetic shielding device that effectively suppresses the leakage of computer electromagnetic information and prevents strong external electromagnetic interference from affecting the normal operation of the computer. Shielded cabinets are usually required in some laboratories, vehicles, airborne or shipborne environments. Shielded cabinets can be used to place computers, which can prevent electromagnetic waves from causing personal injury and prevent the leakage of confidential information generated by computers, network servers and communication electronic equipment during operation.

[0004] The above factors all lead to low cabinet design and production efficiency, long production cycle and high manufacturing cost. Existing technology can no longer meet the needs of current communication development. Summary of the Invention

[0005] The purpose of the present invention is to provide an electromagnetic shielding cabinet, aiming to overcome the defects of the prior art, solve the technical defects of the current profiles taking up large space, affecting internal wiring, scattered layout, low integration and complex structure, To this end, the present invention proposes an electromagnetic shielding cabinet, comprising: The frame beam is a component of the cabinet frame including columns, crossbeams, and longitudinal beams. The frame beam is an open profile formed by bending steel plates, and includes a connecting plate and a first side plate, a second side plate, a third side plate, a fourth side plate, a shielding plate, a fifth side plate, a sixth side plate, and a seventh side plate symmetrically arranged on both sides of the connecting plate and connected in sequence. The free ends of the first side plate and the seventh side plate form an opening, and the seventh side plate forms an obtuse angle with the connecting plate. The three-way connector has a connecting body and three connecting bosses, which are used to plug and cooperate with the cavity of the frame beam to form a three-dimensional cabinet frame; The top cover plate, bottom cover plate and base are respectively connected to the cabinet frame; The door panel fixing connector comprises a 20th side panel and a 21st side panel which are perpendicular to each other and have perforations, and The front door panel and side door panel are connected to the frame beam through door panel fixing connectors, and the conductive foam 1 and conductive foam 2 arranged on the inner sides of the front door panel and side door panel cooperate with the fourth side panel, shielding panel and fifth side panel of the frame beam to form an electromagnetic shielding effect.

[0006] As a preferred technical solution of the present application, the connection between each side panel of the frame beam is provided with a chamfered structure, the first side panel is perpendicular to the second side panel, the second side panel is perpendicular to the third side panel, the third side panel is perpendicular to the fourth side panel, the fifth side panel is perpendicular to the sixth side panel, and the sixth side panel is perpendicular to the seventh side panel, forming two rectangular structures symmetrically arranged on both sides of the connecting plate.

[0007] As a preferred technical solution of the present application, it also includes an accessory installation vertical beam connected between a pair of longitudinal beams, the accessory installation vertical beam is formed by bending a steel plate, and includes a tenth side panel, an eleventh side panel, a twelfth side panel, a thirteenth side panel, a fourteenth side panel, and a fifteenth side panel connected in sequence, wherein the twelfth side panel is perpendicular to the thirteenth side panel, the thirteenth side panel is perpendicular to the fourteenth side panel, and the angles between the tenth side panel and the eleventh side panel, and between the eleventh side panel and the twelfth side panel are both obtuse angles.

[0008] As a preferred technical solution of the present application, a plurality of tenth mounting holes are arranged on the tenth side panel, the thirteenth side panel and the fifteenth side panel of the accessory mounting vertical beam 107 in the longitudinal direction, and a plurality of tenth through-holes are arranged on the thirteenth side panel in the longitudinal direction of the side panel.

[0009] As an optimal technical solution of the present application, the connection between each side panel of the frame beam is provided with a chamfered corner structure, the chamfered corner radius of each side panel of the frame beam is 0.5-2mm, and the chamfered corner radius of each side panel connection of the accessory installation vertical beam is 0.5-2mm.

[0010] As a preferred technical solution of the present application, the connecting bosses of the three-way connector are specifically connecting boss 2, connecting boss 3, and connecting boss 1, which are connected to the frame beam cavity by welding to form a three-dimensional cabinet frame structure.

[0011] As a preferred technical solution of the present application, a plurality of twenty-first through-holes are provided on the twentieth side panel for connecting with the tenth mounting hole on the column via quick-lock fasteners.

[0012] As a preferred technical solution of the present application, a twenty-second through-hole is provided on the twenty-first side panel for connecting with the front door panel or the side door panel.

[0013] As a preferred technical solution of the present application, it also includes a special fastening structure, which includes: a special fastening screw for the door handle that can achieve quick fastening by rotating the angle, and a quick-lock fastener used in conjunction with the door panel fixing connector.

[0014] As a preferred technical solution of the present application, the first side plate and the second side plate of the frame beam are respectively provided with a plurality of first through-holes, second through-holes, first mounting holes and second mounting holes, and hinge and latch mounting holes are provided on the connecting plate.

[0015] As a preferred technical solution of the present application, the first side panel front door panel and the second side panel front door panel of the frame beam are respectively provided with a plurality of first perforated front door panels, second perforated front door panels, first mounting hole front door panels, and second mounting hole front door panels, and hinge and latch mounting holes are set on the connecting plate front door panel.

[0016] The electromagnetic shielding cabinet of the present invention uses bent open profiles as cabinet frame beams. For cabinets with different frame sizes, it is only necessary to cut profiles of corresponding lengths and splice them together to meet the design requirements; it solves the technical defects of current profiles that occupy a large space, affect internal wiring, have a scattered layout, low integration, and a complex structure.

[0017] The cabinet frame beam's side panels are equipped with mounting holes and perforations, allowing for flexible installation of trays, beams, and other structural components to meet diverse installation requirements and increase the space utilization of the cabinet. The frame beam features a connecting plate and two symmetrically positioned rectangular structures on either side of the connecting plate, further stabilizing the profile. The rounded corners of the frame beam's side panels reduce sharp corners and effectively reduce stress concentration, enhancing structural strength. Conductive foam is incorporated into the front and side door panels to enhance electromagnetic shielding between the door and the cabinet body.

[0018] Therefore, the electromagnetic shielding cabinet has the advantages of simple structural design, compact structure, high load-bearing capacity, lightweight, high production efficiency and low manufacturing cost, which improves the safety of the shielding cabinet, improves the overall load-bearing strength and torsional strength; and solves the current problems of low cabinet design efficiency and high cost.

[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1A schematic diagram of the structure of a shielding cabinet according to an embodiment; Figure 2 A schematic diagram of the shielding cabinet frame structure of an embodiment; Figure 3 for Figure 2 A partial enlarged view of point A in the middle; Figure 4 for Figure 2 A partial enlarged view of point B in the middle; Figure 5 The cross-sectional view of the profile of the column; Figure 6 Schematic diagram of the external structure of the crossbeam profile; Figure 7 is a structural diagram of the connecting piece; Figure 8 This is a schematic diagram of the matching structure between the door panel and the profile; Figure 9 Schematic diagram of the three-dimensional structure of the door panel fixing member; Figure 10 Schematic diagram of the front view and left view of the vertical beam for the accessories; Figure 11 Schematic diagram of top view of installing vertical beams for accessories; Figure 12 is a schematic front view of a frame connector; Figure 13 It is a left side view schematic diagram of the frame connector; Figure 14 is a schematic top view of a frame connector; Figure 15 It is a schematic diagram of the three-dimensional structure of a special quick-lock fastener; Figure 16 It is a schematic diagram of the three-dimensional structure of the fastening bolt; Reference numerals: 1. First side panel; 2. Second side panel; 3. Third side panel; 4. Fourth side panel; 5. Shielding plate; 6. Fifth side panel; 7. Sixth side panel; 8. Seventh side panel; 9. Connecting plate; 31. First through-hole; 32. Second through-hole; 33. First mounting hole; 34. Second mounting hole; 35. Third through-hole; 50. Front door panel; 51. Conductive foam 1; 60. Side door panel; 61. Conductive foam 2 101. Upright column; 102. Horizontal beam; 103. Longitudinal beam; 104. Door panel fixing connector; 105. Quick-lock fastener; 106. Three-way connector; 107. Accessory mounting vertical beam; 201. Main body; 202. Connecting boss 2; 203. Connecting boss 3; 204. Connecting boss 1; 205. Threaded mounting hole; 301, tenth side panel; 302, eleventh side panel; 303, twelfth side panel; 304, thirteenth side panel; 305, fourteenth side panel; 306, fifteenth side panel; 310, tenth mounting hole; 320, tenth through-hole; 401, twentieth side panel; 402, twenty-first side panel; 403, twenty-first through-hole; 404, twenty-second through-hole. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] like Figures 1 to 16 As shown, the electromagnetic shielding cabinet of the present invention includes a cabinet frame, a front door panel, a side door panel, a top cover panel, a bottom cover panel and a base; the cabinet frame includes a frame beam and a plurality of three-way connectors 106. The frame beam has three components: a column 101, a cross beam 102, and a longitudinal beam 103. At the same time, the front door panel, the side door panel, the top cover panel, the bottom cover panel, the base, the three-way connector 106, and the door panel fixing connector 104 are assembled on the frame beam. In the present invention, Since the cabinet frame is formed based on the cabinet frame beam and the three-way connector, and then the cabinet is formed, and since the sizes of the cabinet frame beam and the cabinet frame are variable, the size of the cabinet can be adjusted, and multiple mounting holes are integrated on the three-way connector of the frame beam, the problems of low cabinet design and production efficiency and high manufacturing cost in the related technology are solved, and the effect of improving production efficiency and reducing manufacturing cost is achieved.

[0023] Specifically, the cabinet frame beam is an open profile, which is formed by bending a steel plate and includes a connecting plate 9 and a first side panel 1, a second side panel 2, a third side panel 3, a fourth side panel 4, a shielding plate 5, a fifth side panel 6, a sixth side panel 7, and a seventh side panel 8 symmetrically arranged on both sides of the connecting plate. The first side panel 1, the second side panel 2, the third side panel 3, the fourth side panel 4, the shielding plate 5, the fifth side panel 6, the sixth side panel 7, and the seventh side panel 8 are connected in sequence, and the first side panel 1 is perpendicular to the second side panel 2, the second side panel 2 is perpendicular to the third side panel 3, the third side panel 3 is perpendicular to the fourth side panel 4, the fifth side panel 6 is perpendicular to the sixth side panel 7, and the sixth side panel 7 is perpendicular to the seventh side panel 8, forming two rectangular structures symmetrically arranged on both sides of the connecting plate 9, making the structure of the profile more stable.

[0024] An opening is formed between the free end of the first side panel 1 and the free end of the seventh side panel 8, the free end of the seventh side panel 8 is connected to the connecting panel 9, and the angle between the seventh side panel 8 and the connecting panel 9 is an obtuse angle, which is greater than 90° and less than 180°.

[0025] In a further optimization of the above structure, the connections between the first side panel 1, the second side panel 2, the third side panel 3, the fourth side panel 4, the shielding panel 5, the fifth side panel 6, the sixth side panel 7, the seventh side panel 8, and the connecting panel 9 are all rounded. The radius of the rounded corners of each side panel of the frame beam is 0.5-2mm. This rounded corner structure can reduce sharp corners of the profile, effectively reduce stress concentration in the profile, and improve structural strength.

[0026] Further optimization is made in the above structure. Figure 5 、 Figure 6 3D structural diagram of the cabinet frame beam according to an embodiment of the invention, as shown in FIG. Figure 6 As shown, the first side panel 1 and the second side panel 2 of the frame beam are provided with installation and fixing holes for installing the sheet metal inside the cabinet, and the first side panel 1 and the second side panel 2 are respectively provided with a plurality of interfaces for installing the sheet metal inside the cabinet, namely the first through-hole 31, the second through-hole 32, the first installation hole 33, the second installation hole 34 and the third through-hole 35; through these interfaces, the door panel fixing connector 104, trays, beams and other structural parts can be installed conveniently and flexibly to meet the requirements of different installation positions.

[0027] In addition, the connecting plate 9 is provided with mounting holes for fixing hinges and latches for mounting the cabinet door panel.

[0028] like Figure 8 The present invention also provides a shielding structure, which specifically includes a front door panel 50 and a side door panel 60. The inner surfaces of the front door panel 50 and the side door panel 60 are adhered with conductive foam 1 51 and conductive foam 2 61. When the cabinet door is closed, the conductive foam and the fourth side panel 4, the shielding panel 5, and the fifth side panel 6 in the profile are squeezed against each other, thereby improving the electromagnetic shielding effect between the cabinet door and the cabinet body.

[0029] like Figure 12-14 The present invention also provides a frame beam connector, which is a three-way connector 106 and includes a connecting body 201, a second connecting boss 202, a third connecting boss 203, and a first connecting boss 204. The first connecting boss 204 is connected to the connecting body 201 along with the second connecting boss 202 and the third connecting boss 203. The connecting body 201 is provided with a lifting ring mounting hole or a threaded anchor mounting hole 205 for lifting a cabinet.

[0030] Furthermore, the columns 101, cross beams 102 and longitudinal beams 103 of the cabinet frame beam are installed in cooperation with the connecting bosses 202, 203 and 104 of the eight three-way connectors 106. The connecting bosses 202, 203 and 104 are inserted into the cavities of the columns 101, cross beams 102 and longitudinal beams 103 of the frame beam and are assembled by welding to form a cabinet frame.

[0031] like Figure 2 、 Figure 10 、 Figure 11 The cabinet frame beams are equipped with accessory mounting vertical beams 107 for mounting additional accessories. The upper and lower ends of the vertical beams 107 are connected to the longitudinal beams 103. These accessory mounting vertical beams are formed by bending steel plates and sequentially connecting the tenth side panel 301, the eleventh side panel 302, the twelfth side panel 303, the thirteenth side panel 304, the fourteenth side panel 305, and the fifteenth side panel 306. Furthermore, the twelfth side panel 303 is perpendicular to the thirteenth side panel 304, the thirteenth side panel 304 is perpendicular to the fourteenth side panel 305, and the fourteenth side panel 305 is perpendicular to the fifteenth side panel 306.

[0032] The included angles between the tenth side panel 301 and the eleventh side panel 302 , and between the eleventh side panel 302 and the twelfth side panel 303 are obtuse angles, which are greater than 90° and less than 180°.

[0033] Further optimizing the above structure, the connections between the tenth side panel 301, the eleventh side panel 302, the twelfth side panel 303, the thirteenth side panel 304, the fourteenth side panel 305, and the fifteenth side panel 306 are all rounded. The radius of the rounded corners at the connection points of the accessory mounting vertical beam 107 is 0.5-2mm; this rounded corner structure reduces sharp corners in the profile, effectively reduces stress concentration in the profile, and improves structural strength.

[0034] Further optimization is made in the above structure. A plurality of tenth mounting holes 310 are provided on the tenth side panel 301, the thirteenth side panel 304 and the fifteenth side panel 306. All the tenth mounting holes 310 are arranged along the length direction of the side panels, so that the cabinet made of the profile can be installed with more accessories, thereby increasing the space utilization rate of the cabinet composed of the profile.

[0035] In the above structure, further optimization is made, a plurality of tenth through-holes 320 are provided on the thirteenth side panel 304, and all the tenth through-holes 320 are arranged along the length direction of the side panel, so that the cabinet made of the profile can be installed with more accessories.

[0036] like Figure 9The present invention also provides a door panel fixing connector 104, which is formed by bending a steel plate and connecting a twentieth side panel 401 and a twenty-first side panel 402, and the twentieth side panel 401 and the twenty-first side panel 402 are perpendicular to each other.

[0037] Further optimization is made in the above structure. The twentieth side panel 401 is provided with a plurality of twenty-first through-holes 403 so that the profile can be installed on the column 101; the twenty-first side panel 402 is provided with a twenty-second through-hole 404 for connecting with the front door panel 50 or the side door panel 60.

[0038] like Figure 15 、 Figure 16 The present invention also provides a special fastening structure, which includes a quick-lock fastener 105 and a fastening screw. By using a tool to rotate the fastening screw to a certain angle, the door handle can be quickly fastened.

[0039] The electromagnetic shielding cabinet of the present invention uses bent open profiles as cabinet frame beams. For cabinets with different frame sizes, it is only necessary to cut profiles of corresponding lengths and splice them together to meet the design requirements; it solves the technical defects of current profiles that occupy a large space, affect internal wiring, have a scattered layout, low integration, and a complex structure.

[0040] Therefore, the electromagnetic shielding cabinet has the advantages of simple structural design, compact structure, high load-bearing capacity, lightweight, high production efficiency and low manufacturing cost, which improves the safety of the shielding cabinet, improves the overall load-bearing strength and torsional strength; and solves the current problems of low cabinet design efficiency and high cost.

[0041] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electromagnetic shielding cabinet, characterized in that: include: The frame beam is a component of the cabinet frame including the columns (101), the cross beam (102), and the longitudinal beam (103). The frame beam is an open profile formed by bending a steel plate, comprising a connecting plate (9) and a first side plate (1), a second side plate (2), a third side plate (3), a fourth side plate (4), a shielding plate (5), a fifth side plate (6), a sixth side plate (7), and a seventh side plate (8) symmetrically arranged on both sides of the connecting plate (9) and connected in sequence, wherein the free ends of the first side plate (1) and the seventh side plate (8) form an opening, and the seventh side plate (8) forms an obtuse angle with the connecting plate (9); A three-way connector (106) having a connecting body (201) and three connecting bosses, used for plugging and cooperating with the cavity of the frame beam to form a three-dimensional cabinet frame; The top cover plate, bottom cover plate and base are respectively connected to the cabinet frame; The door panel fixing connector (104) comprises a twentieth side panel (401) and a twenty-first side panel (402) which are perpendicular to each other and have perforations, and The front door panel (50) and the side door panel (60) are connected to the frame beam via the door panel fixing connector (104), and the conductive foam 1 (51) and the conductive foam 2 (61) provided on the inner sides of the front door panel (50) and the side door panel (60) cooperate with the fourth side panel (4), the shielding panel (5), and the fifth side panel (6) of the frame beam to form an electromagnetic shielding effect.

2. The electromagnetic shielding cabinet according to claim 1, characterized in that: The connection between the side panels of the frame beam is provided with a rounded corner structure, wherein the first side panel (1) is perpendicular to the second side panel (2), the second side panel (2) is perpendicular to the third side panel (3), the third side panel (3) is perpendicular to the fourth side panel (4), the fifth side panel (6) is perpendicular to the sixth side panel (7), and the sixth side panel (7) is perpendicular to the seventh side panel (8), forming two rectangular structures symmetrically arranged on both sides of the connecting plate (9).

3. The electromagnetic shielding cabinet according to claim 1, characterized in that: The invention also includes an accessory installation vertical beam (107) connected between a pair of longitudinal beams (103), wherein the accessory installation vertical beam (107) is formed by bending a steel plate and includes a tenth side plate (301), an eleventh side plate (302), a twelfth side plate (303), a thirteenth side plate (304), a fourteenth side plate (305), and a fifteenth side plate (306) connected in sequence, wherein the twelfth side plate (303) is perpendicular to the thirteenth side plate (304), the thirteenth side plate (304) is perpendicular to the fourteenth side plate (305), and the angles between the tenth side plate (301) and the eleventh side plate (302), and between the eleventh side plate (302) and the twelfth side plate (303) are all obtuse angles.

4. The electromagnetic shielding cabinet according to claim 3, characterized in that: A plurality of tenth mounting holes (310) are provided on the tenth side plate (301), the thirteenth side plate (304), and the fifteenth side plate (306) of the accessory mounting vertical beam 107 along the length direction, and a plurality of tenth through holes (320) are arranged along the length direction of the side plate on the thirteenth side plate (304).

5. The electromagnetic shielding cabinet according to claim 3, characterized in that: The connection points of the side panels of the frame beam are provided with rounded corner structures, the rounded corner radius of the side panels of the frame beam is 0.5-2 mm, and the rounded corner radius of the connection points of the side panels of the accessory mounting vertical beam (107) is 0.5-2 mm.

6. The electromagnetic shielding cabinet according to claim 1, characterized in that: The connecting bosses of the three-way connector (106) are specifically connecting boss 2 (202), connecting boss 3 (203), and connecting boss 1 (204), which are connected to the frame beam cavity by welding to form a three-dimensional cabinet frame structure.

7. The electromagnetic shielding cabinet according to claim 1, characterized in that: The twentieth side plate (401) is provided with a plurality of twenty-first through-holes (403) for connecting with the tenth mounting hole (310) on the column (101) via quick-lock fasteners.

8. The electromagnetic shielding cabinet according to claim 1, characterized in that: The twenty-first side panel (402) is provided with a twenty-second through-hole (404) for connection with the front door panel (50) or the side door panel (60).

9. The electromagnetic shielding cabinet according to claim 1, characterized in that: It also includes a special fastening structure, which includes: a special fastening screw for the door handle that can achieve rapid fastening through a rotation angle, and a quick-lock fastener (105) used in conjunction with the door panel fixing connector (104).

10. The electromagnetic shielding cabinet according to claim 1, characterized in that: The first side plate (1) and the second side plate (2) of the frame beam are respectively provided with a plurality of first through-holes (31), second through-holes (32), first mounting holes (33), and second mounting holes (34); and the connecting plate (9) is provided with hinge and latch mounting holes.

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