A shielded box

Abstract

The utility model relates to the field of box, concretely is a shielding box. It includes box, box door and shielding subassembly, the box front end opening has four bending parts of rectangular distribution, the box door is hinged on the box, shielding subassembly is set up four groups in the back of box door rectangularly, shielding subassembly includes the mounting plate of installation in the back of box door and the shielding strip of installation on the mounting plate, the shielding strip includes a plurality of side -by -side distribution's resilient sheet no.

Description

Technical Field

[0001] This utility model relates to the field of boxes, and in particular to a shielded box. Background Technology

[0002] An electromagnetic shielding box is a protective device that suppresses electromagnetic radiation through shielding, isolation, and grounding technologies, primarily used to prevent information leakage from electronic equipment. A common method involves installing a shielding strip between the box body and the door; however, the friction between the shielding strip and the box body is significant, requiring considerable force to open the door, making it inconvenient to use. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the background technology by proposing a shielding box that, when the door is closed, compresses and deforms the spring sheet of the shielding strip to ensure the electromagnetic shielding effect, and when the door is opened, allows the spring sheet of the shielding strip to automatically spring back, making the opening and closing operation labor-saving and convenient to use.

[0004] The technical solution of this utility model is a shielding box, including a box body, a box door, and a shielding assembly; the front opening of the box body has four rectangularly distributed bends; the box door is hinged to the box body; the shielding assembly is arranged in four rectangular groups on the back of the box door, the shielding assembly includes a mounting plate installed on the back of the box door and a shielding strip installed on the mounting plate, the shielding strip includes multiple side-by-side rebound tabs, the rebound tabs are V-shaped, when the box door is closed, the rebound tabs abut against the bends of the box body and deform.

[0005] Preferably, the shielding strip further includes a connecting piece mounted on the mounting plate, the connecting piece having a mounting hole, and one end of the connecting piece being integrally connected to one end of the spring sheet.

[0006] Preferably, the connection point between the connecting piece and the spring piece has a strip-shaped hole.

[0007] Preferably, the shielding strip also includes multiple side-by-side spring tabs II, which are integrally connected to the other end of the connecting piece. The spring tabs II have a V-shaped structure and are elastically tensioned between the mounting plate and the door.

[0008] Preferably, the middle parts of the first and second spring sheets are smoothly transitioned, and the two ends of the connecting piece are smoothly transitioned to the connection points of the first and second spring sheets, respectively.

[0009] Preferably, the shielding strip is made of stainless steel plated with copper.

[0010] Preferably, the door is equipped with a lock.

[0011] Compared with existing technologies, this invention has the following beneficial technical effects: When the door is closed, the door rotates the shielding strips via the mounting plate, causing the spring clip to bend and deform. The four shielding strips form a rectangular shape for electromagnetic shielding, creating a shielding space inside the entire shielding box. Friction between the shielding strips and the box body is minimal but does not affect the shielding effect. When the door is opened, the spring clips automatically spring back to their original position. The entire opening and closing operation is effortless and convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the present invention when the cabinet door is opened;

[0014] Figure 3 This is a partial cross-sectional view of the shielding strip being compressed when the cabinet door is closed in an embodiment of this utility model;

[0015] Figure 4 This is a schematic diagram of the shielding strip.

[0016] Reference numerals in the attached drawings: 1. Box body; 2. Box door; 3. Door lock; 4. Mounting plate; 5. Shielding strip; 50. Connecting piece; 501. Mounting hole; 51. Spring-loaded piece one; 52. Spring-loaded piece two. Detailed Implementation

[0017] like Figures 1-4 As shown in the figure, the shielding box proposed in this embodiment includes a box body 1, a box door 2, and a shielding assembly.

[0018] The front opening of the box 1 has four rectangular bends, and the cross-sectional profile of the bends is U-shaped.

[0019] like Figure 2 As shown, the door 2 is hinged to the box body 1. A lock 3 is installed on the door 2, including a locking plate at the front end. The user inserts a key to rotate the locking plate, turning it to the inside of the bend in the box body 1 or from the inside of the bend outwards, thus locking or unlocking the box. Bevels can be provided at both ends of the locking plate in the width direction to facilitate guiding the locking plate to the inside of the bend in the box body 1 when locking.

[0020] Four sets of shielding components are arranged in a rectangular shape on the back of the door 2, corresponding one-to-one with the four bends on the body 1, and abutting against each other accordingly. The shielding components include a mounting plate 4 installed on the back of the door 2 and shielding strips 5 installed on the mounting plate 4. When the door is closed, the shielding strips 5 abut against the bends of the body 1, and the four shielding strips 5 abut against the four bends in a rectangular shape, thereby effectively achieving the shielding effect.

[0021] The shielding strip 5 is 0.1mm thick and made of copper-plated stainless steel. The shielding strip 5 includes multiple side-by-side spring-loaded tabs 51, a connecting piece 50 mounted on the mounting plate 4, and multiple side-by-side spring-loaded tabs 52. The spring-loaded tabs 51 have a V-shaped structure. The connecting piece 50 has mounting holes 501, one end of which is integrally connected to one end of the spring-loaded tab 51. The connection point has strip-shaped holes arranged in a V-shape, facilitating elastic deformation of the spring-loaded tab 51 under compression and elastic reset when not compressed. The spring-loaded tabs 52 are integrally connected to the other end of the connecting piece 50. The spring-loaded tabs 52 have a V-shaped structure and are elastically tensioned between the mounting plate 4 and the door 2. When the door 2 is closed, the spring-loaded tabs 51 abut against the bent portion of the enclosure 1 and deform. When the door is opened, the bent portion of the enclosure 1 releases the compression on the spring-loaded tabs 51, and the spring-loaded tabs 51 automatically rebound and reset. The middle parts of the first spring sheet 51 and the second spring sheet 52 are both smoothly transitioned. The two ends of the connecting piece 50 are also smoothly transitioned to the connection points of the first spring sheet 51 and the second spring sheet 52, respectively, to avoid stress concentration and improve elastic deformation and automatic reset effect.

[0022] In this embodiment, the spring-loaded tab 51 of the shielding strip 5 is deformed by compression when the door is closed to ensure the electromagnetic shielding effect. When the door 2 is closed, the door 2 drives the shielding strip 5 to rotate via the mounting plate 4. The spring-loaded tab 51 of the shielding strip 5 is deformed by the bending part of the box body 1, and the four shielding strips 5 form a rectangular shape for electromagnetic shielding, creating a shielding space inside the entire shielding box. The friction between the shielding strip 5 and the box body 1 is small, but it does not affect the shielding effect. When the door 2 is opened, the spring-loaded tab 51 gradually detaches from the box body 1 and automatically springs back to its original position after detachment. The entire opening and closing operation is effortless and convenient to use.

[0023] This shielding box meets Class C (FGWS-c1) of the national confidentiality standard BMB19-2006 "Technical Requirements and Test Methods for Electromagnetic Leakage Emission Shielding Cabinets", and can be used for electromagnetic protection to prevent the leakage of important information.

[0024] The shielding range of this shielding box is as follows:

[0025] 1. Magnetic field: ≥70dB at 14kHz, ≥95dB at 150kHz;

[0026] 2. Microwave: 1GHz-10GHz ≥95dB;

[0027] 3. Plane wave: 50MHz-1GHz ≥100dB;

[0028] 4. Electric field: ≥100dB for 200kHz-50MHz.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A shielding box, characterized in that, include: The box body (1) has four rectangularly distributed bends at the front opening; Box door (2) is hinged to box body (1); The shielding assembly is arranged in a rectangular shape on the back of the door (2), including a mounting plate (4) installed on the back of the door (2) and a shielding strip (5) installed on the mounting plate (4). The shielding strip (5) includes multiple side-by-side spring clips (51). The spring clips (51) have a V-shaped structure. When the door (2) is closed, the spring clips (51) abut against the bending part of the box body (1) and deform.

2. The shielding box according to claim 1, characterized in that, The shielding strip (5) also includes a connecting piece (50) mounted on the mounting plate (4). The connecting piece (50) has a mounting hole (501). One end of the connecting piece (50) is integrally connected to one end of the spring sheet (51).

3. A shielding box according to claim 2, characterized in that, The connecting piece (50) and the spring piece (51) have a strip-shaped hole at the connection point.

4. A shielding box according to claim 2, characterized in that, The shielding strip (5) also includes multiple side-by-side spring tabs (52), which are integrally connected to the other end of the connecting piece (50). The spring tabs (52) have a V-shaped structure and are elastically tensioned between the mounting plate (4) and the door (2).

5. A shielding box according to claim 4, characterized in that, The middle parts of the first spring sheet (51) and the second spring sheet (52) are smoothly transitioned, and the two ends of the connecting piece (50) are smoothly transitioned to the connection points of the first spring sheet (51) and the second spring sheet (52) respectively.

6. A shielding box according to claim 1, characterized in that, The shielding strip (5) is made of stainless steel plated with copper.

7. A shielding box according to claim 1, characterized in that, A door lock (3) is installed on the box door (2).

Images