CN113597250B

CN113597250B - Shielding cabinet

Info

Publication number: CN113597250B
Application number: CN202110941019.6A
Authority: CN
Inventors: 李锦恭; 简建雄; 李建洪
Original assignee: Guangzhou Guub Technology Co ltd
Current assignee: Guangzhou Guub Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2023-03-03
Anticipated expiration: 2041-08-16
Also published as: CN113597250A

Abstract

The application discloses shielding cabinet, it includes: a cabinet body; the cabinet body is internally provided with an accommodating cavity with at least one opening; the cabinet body includes: the thickness of each of the first connecting plate and the second connecting plate is less than or equal to 2 mm, and one side edge of each of the first connecting plate and the second connecting plate is connected in a welding mode; the first connecting plate comprises a first plate body and a first bend which is arranged along the edge of the first plate body and extends towards the inside of the containing cavity, a first bending fillet which protrudes outwards is connected between the first bend and the first plate body, at least part of the first bend and the second plate body are in lap joint, a welding seam is formed between the first bending fillet and the plate surface of the second plate body in a limited mode, the welding seam is located on the outer surface of the cabinet body, and the first connecting plate is connected with the second connecting plate in a welding seam mode. The shielding cabinet in this application adopts the sheet metal welding, but not only reducible materials, and difficult emergence welding deformation not only can guarantee whole outward appearance, and can improve welding quality, guarantees the shielding effect.

Description

Shielding cabinet

Technical Field

The application relates to the technical field of electromagnetic information shielding, in particular to a shielding cabinet.

Background

Along with the development of science and technology, the data collection, processing and communication capabilities of communication equipment are more and more powerful, and great information safety hidden dangers are generated while convenience is brought to people. The shielding cabinet is a device with a signal shielding function designed for a confidential conference or other confidential tasks, and can be used for registering mobile phones or other communication equipment.

The ideal shielding cabinet should be in the shape of a completely closed metal shell without any gap or opening when the communication equipment is in the storage state. The cabinet body of traditional shielding cabinet adopts the corrosion resistant plate material to bend the back usually, welds the formation cabinet body again, in order to guarantee the shielding effect, needs to adopt full weld, and the forming process of the present cabinet body mainly includes following two kinds:

the first method is that a thick stainless steel plate (the thickness is more than 2 mm) is adopted, and a groove is formed at a welding position for welding, and the stainless steel plate is thick, so that the problem that the stainless steel plate is not easy to deform during welding, but the problems of more material and high cost are caused, the weight of a cabinet body is increased, the cabinet body is inconvenient to move, and the process of forming the groove is required to be added before welding, so that the processing is complicated;

the other method is to weld a thin stainless steel plate (the thickness is less than or equal to 2 mm), but thermal deformation is easy to occur during full welding, so that the overall appearance of the cabinet body is influenced, and due to the thermal deformation, pseudo welding is easy to occur, so that the welding quality is poor, and the signal shielding effect of the shielding cabinet is poor; in addition, when the thin plate is adopted for welding in the prior art, in order to ensure the overall appearance, the welding seam needs to be arranged in the cabinet body, so that the welding is inconvenient, the defects of sand holes and the like are easily generated, and the welding quality is further reduced.

Disclosure of Invention

It is an object of the present application to provide a shielding cabinet which can solve at least one problem existing in the prior art.

The purpose of the application is realized by the following technical scheme:

a shielded cabinet, comprising: the cabinet body is internally provided with an accommodating cavity with at least one opening;

the cabinet body includes: the thickness of each of the first connecting plate and the second connecting plate is less than or equal to 2 mm, and one side edge of each of the first connecting plate and the second connecting plate is connected by welding;

the first connecting plate comprises a first plate body and a first bend which is arranged along the edge of the first plate body and extends towards the inside of the containing cavity, a convex first bending fillet is connected between the first bend and the first plate body, at least part of the first bend and the second connecting plate are in lap joint, a welding seam is limited between the first bending fillet and the plate surface of the second connecting plate and is located on the outer surface of the cabinet body, and the first connecting plate and the second connecting plate are in welding connection at the welding seam.

In some embodiments of the present application, the first connection plate has a plate thickness t ₁ The peripheral radius of the first bending fillet is R ₁ Wherein: t is t ₁ ≤R ₁ ≤3t ₁ 。

In some embodiments of the present application, the first bend includes one first plate portion or includes at least two first plate portions that are sequentially connected at an included angle.

In some embodiments of the present application, the cabinet comprises: the vertical panel and the end panels are respectively arranged at the upper end and the lower end of the vertical panel;

the vertical panel is configured as the first connecting plate, the end panel is configured as the second connecting plate, the first bends are respectively arranged along the upper edge and the lower edge of the vertical panel, and the end panel is lapped on the first bends.

In some embodiments of this application, the vertical plate and two the cabinet body panel beating that the end panel formed for bending through a steel sheet.

In some embodiments of the present application, the cabinet comprises: the first enclosing plate and the second enclosing plate are sequentially connected end to form a frame shape;

the first enclosing plate is configured into the first connecting plate, the second enclosing plate is configured into the second connecting plate, one edge of the first enclosing plate is provided with the first bend, and the first bend is overlapped with the second enclosing plate.

In some embodiments of the present application, a side edge of the second enclosing plate opposite to the first bending is provided with a bending connecting portion, and the first bending is lapped on the bending connecting portion.

In some embodiments of the present application, the first enclosing plate and the second enclosing plate are respectively formed by bending a steel plate.

In some embodiments of the present application, the second connecting plate includes a second plate body and a second bend disposed along an edge of the second plate body, the second bend extends toward an inside of the accommodating cavity, and a second bending fillet protruding outward is connected between the second bend and the second plate body;

the first bending part and the second bending part are at least partially overlapped, and the welding seam is formed between the first bending fillet and the second bending fillet.

In some embodiments of the present application, the second connecting plate has a plate thickness t ₂ The peripheral radius of the second bending fillet is R ₂ Wherein: t is t ₂ ≤R ₂ ≤3t ₂ 。

In some embodiments of the present application, the second bend includes a second plate portion or at least two second plate portions sequentially connected with each other at an included angle.

the vertical panel is configured as the first connecting plate, the end panel is configured as the second connecting plate, the first bends are respectively arranged along the upper edge and the lower edge of the vertical panel, and the second bends are arranged along the edges of the end panel corresponding to the first bends.

In some embodiments of the present application, the vertical plates and the end plates are respectively formed by bending a steel plate.

In some embodiments of the present application, the first bend along the rear edge of the riser panel has a spigot portion;

the end panel with the position department that grafting portion corresponds the second is bent and is equipped with the inserting groove, grafting portion from the back to preceding cooperation peg graft in the inserting groove.

the first enclosing plate is constructed into the first connecting plate, the second enclosing plate is constructed into the second connecting plate, one side edge of the first enclosing plate is provided with the first bend, and one side edge of the second enclosing plate, which is opposite to the first bend, is provided with the second bend.

In some embodiments of the present application, the first connecting plate and the second connecting plate are connected at the weld joint by laser welding.

In some embodiments of the application, the cabinet body is made of a cold-rolled steel plate, and the surface of the cabinet body is provided with an anti-rust layer; the shielding cabinet further comprises:

the frame is arranged along the edge of the opening of the accommodating cavity and is welded with the cabinet body, the frame is in a closed ring shape matched with the shape of the opening of the accommodating cavity, and the frame is a stainless steel piece.

In some embodiments of the present application, the frame includes at least two frame strips welded end to end in sequence, and each of the frame strips is formed by bending a stainless steel plate.

In some embodiments of this application, the inboard of frame strip has the spout, follows the opening edge of the cabinet body is equipped with towards the third that the holding intracavity extends is bent, the end cooperation cartridge that the third was bent in the spout, the outside edge of vertical frame strip with the surface welding of the cabinet body.

In some embodiments of the present application, the frame strip has a cross-section of

Form or

And (4) forming.

In some embodiments of the present application, laser welding is used between the outer edge of the frame strip and the outer surface of the cabinet body, and between the frame strips.

In some embodiments of the present application, the shielding cabinet further comprises:

the cabinet door is rotatably connected with the cabinet body at one side edge and used for sealing the opening of the accommodating cavity, and the cabinet door comprises an inner door plate which is a metal plate;

when the cabinet door rotates to cover the opening of the accommodating cavity, the inner side face of the inner door plate is matched and connected with the frame.

In some embodiments of the present application, an elastic shielding strip is disposed at a position corresponding to the frame on the inner side surface of the inner door panel;

when the cabinet door rotates to cover the opening of the accommodating cavity, the elastic shielding strip is in conductive butt joint with the frame strip.

In some embodiments of the present application, the elastic shield strip comprises:

sponge; and

and the conductive cloth is coated on the periphery of the sponge.

In some embodiments of the present application, the cabinet door further comprises:

the outer door plate is a plastic plate and covers the outer side face of the inner door plate.

In some embodiments of the present application, a handle is provided on the cabinet body.

In some embodiments of the present application, an orifice is formed in the bottom of the cabinet body, a blind rivet nut is installed in the orifice, the blind rivet nut has a threaded hole, and the threaded hole is a blind hole with a downward opening; the shielding cabinet further comprises:

the base, the base is located the bottom of the cabinet body, the connecting hole has been seted up on the base, and supreme passing is down followed to a screw spare behind the connecting hole with the screw hole links to each other, will the base with the cabinet body links to each other.

According to the shielding cabinet, the cabinet body comprises a first connecting plate and a second connecting plate which are connected in a welding mode, the first connecting plate comprises a first connecting plate and a first bend which are connected in a bending mode, a first bending fillet is naturally formed between the first connecting plate and the first bend, the first connecting plate is connected with the second connecting plate in a lap joint mode, therefore, a welding seam located on the outer surface of the cabinet body is limited and formed on the surfaces of the first bending fillet and the second connecting plate, the welding seam is used for containing welding flux, welding can be achieved on the outer side of the cabinet body, an operator can conveniently conduct welding operation, welding defects such as sand holes are reduced, welding quality is improved, and shielding effect is improved; in addition, the first bend is arranged on the first connection, so that the welding position of the first connection plate is effectively strengthened, the deformation caused by heat concentration in the welding process is avoided, the welding quality is further improved, the shielding effect of the cabinet body can be effectively improved during full welding, and the overall appearance of the cabinet body can be improved; moreover, the cabinet body adopts the sheet metal to weld, can save materials to make the cabinet body lightweight, make to remove the convenience.

Drawings

The present application is described in further detail below in connection with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are intended to be conceptual in nature or configuration of the described objects and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of a partial structure of a cabinet according to some embodiments of the present application;

FIG. 2 is a schematic view of a partial structure of a cabinet according to some embodiments of the present application;

fig. 3 is a schematic structural diagram of a shielding cabinet according to a first embodiment of the present application;

fig. 4 is an exploded schematic view of a shielding cabinet according to a first embodiment of the present application;

fig. 5 is a schematic view of a connection structure between a cabinet body and a frame in a shielding cabinet according to a first embodiment of the present application;

FIG. 6 is an enlarged partial view of portion A of FIG. 5;

FIG. 7 is an enlarged view of part B of FIG. 5;

fig. 8 is an exploded view of the cabinet body and the frame of the shielding cabinet according to the first embodiment of the present application;

fig. 9 is a schematic structural diagram of a vertical panel in a shielding cabinet according to a first embodiment of the present application;

fig. 10 is a schematic structural diagram of an end panel in a shielding cabinet according to a first embodiment of the present application;

fig. 11 is a schematic view of a connection structure between frame strips and a cabinet body in a shielding cabinet according to an embodiment of the present application;

fig. 12 is a schematic view of another connection structure between the frame and the cabinet body in the shielding cabinet according to the first embodiment of the present application;

FIG. 13 is a schematic structural diagram of an inner door panel of a shielding cabinet according to a first embodiment of the present application;

fig. 14 is a schematic view of a connection structure between a cabinet body and a frame of a shielding cabinet according to a second embodiment of the present application;

FIG. 15 is a schematic cross-sectional view of FIG. 14;

fig. 16 is an enlarged partial view of part C of fig. 15;

fig. 17 is a schematic view of a connection structure between a cabinet body and a frame in a shielding cabinet according to a third embodiment of the present application;

FIG. 18 is an exploded schematic view of FIG. 17;

FIG. 19 is a cross-sectional schematic view of FIG. 17;

FIG. 20 is an enlarged schematic view of a portion D of FIG. 19;

fig. 21 is a partially enlarged view of portion E of fig. 19.

In the figure:

100. a cabinet body; 1. an accommodating cavity; 2. a first connecting plate; 21. a first plate body; 22. first bending; 221. a first plate portion; 23. a first bending fillet; 3. a second connecting plate; 31. a second plate body; 32. second bending; 321. a second plate portion; 33. a second bending fillet; 4. welding seams; 5. a vertical panel; 51. a plug-in part; 6. an end panel; 61. inserting grooves; 7. a first enclosing plate; 8. a second enclosing plate; 81. bending the connecting part; 9. thirdly, bending; 10. a handle; 110. an orifice; 120. an installation space;

200. a frame; 201. frame strips; 2011. a chute;

300. a cabinet door; 301. an inner door panel; 302. an elastic shielding strip; 303. an outer door panel;

400. a magnet piece.

500. A base.

Detailed Description

Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the descriptions are illustrative only, exemplary, and should not be construed as limiting the scope of the application.

First, it should be noted that the orientations of top, bottom, upper, lower, left, right, front, rear, and the like referred to herein are defined with respect to the directions in the respective drawings, they are relative concepts, and thus can be changed according to the positions thereof and the practical states. These and other orientations, therefore, should not be used in a limiting sense.

It should be noted that the term "comprising" does not exclude other elements or steps and the "a" or "an" does not exclude a plurality.

Furthermore, it should also be noted that any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned herein.

It will be further understood that the terms "first," "second," and the like, are used herein to describe various information and should not be limited to these terms, which are used only to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present application.

It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

The shielding cabinet in the application is mainly used for shielding communication signals of mobile phone equipment, but is also applicable to shielding signals of tablet computers or other communication equipment.

As shown in fig. 1 to 21, the shielding cabinet of the present application includes: a cabinet 100, wherein the cabinet 100 comprises a receiving cavity 1 with at least one opening.

As shown in fig. 1, the cabinet 100 includes: the thickness of each of the first connecting plate 2 and the second connecting plate 3 is less than or equal to 2 mm, and one side edge of each of the first connecting plate 2 and the second connecting plate 3 is connected in a welding mode; specifically, as shown in fig. 1, the first connecting plate 2 includes a first plate 21 and a first bend 22 disposed along an edge of the first plate 21 and extending toward an inside of the accommodating cavity 1, a convex first bend fillet 23 is connected between the first bend 22 and the first plate 21, the first bend 22 and the second connecting plate at least partially overlap, a weld 4 is defined between the first bend fillet 23 and a plate surface of the second connecting plate, the weld 4 is located on an outer surface of the cabinet 100, and the first connecting plate 2 and the second connecting plate 3 are welded together at the weld 4.

Based on the technical scheme, the first connecting plate 2 comprises a first connecting plate 2 and a first bend 22 which are connected in a bending mode, in the bending process, a first bending fillet 23 is naturally formed between the first connecting plate 2 and the first bend 22, the first connecting plate 2 is connected with the second connecting plate 3 in an overlapping mode, so that a welding seam 4 located on the outer surface of the cabinet body 100 is limited and formed on the plate surfaces of the first bending fillet 23 and the second connecting plate 3, the welding seam 4 is used for containing welding flux (such as welding wire), welding can be achieved on the outer side of the cabinet body 100, an operator can conveniently perform welding operation, welding defects such as sand holes are reduced, welding quality is improved, and a shielding effect is improved; moreover, the first bend 22 is arranged on the first connection, so that the welding position of the first connection plate 2 is effectively reinforced, the deformation caused by heat concentration in the welding process is avoided, the welding quality is further improved, the shielding effect of the cabinet body 100 can be effectively improved during full welding, and the overall appearance of the cabinet body 100 can be improved; moreover, the cabinet body 100 is welded by thin plates, so that materials can be saved, and the cabinet body 100 is light and convenient to move.

In the present application, the plate thickness t of the first connection plate 2 is selected ₁ Then, the size of the first bending fillet 23 needs to be determined to obtain a welding seam with a proper width; through a plurality of tests and experience, the peripheral radius R of the first bending fillet 23 ₁ Thickness t of the first connection plate 2 ₁ When the relation t is satisfied ₁ ≤R ₁ ≤3t ₁ During welding, welding seam 4 with proper width can be obtained, welding wires with proper size can be selected according to the width of welding seam 4 during welding, the strength of cabinet body 100 at the welding position can be ensured, welding stability and reliability can be guaranteed, and appearance of welding seam 4 can be guaranteed.

In this application, the first bend 22 may only be provided with one plate portion, or two or more first plate portions 221 sequentially connected at an included angle are provided, specifically, the arrangement is selected according to the actual structural requirement of the cabinet 100 and the length of the first plate 21, and is not limited herein.

Further, in some embodiments of the present application, as shown in fig. 2, the second connecting plate 3 includes a second plate 31 and a second bend 32 disposed along an edge of the second plate 31, the second bend 32 extends toward the inside of the accommodating cavity 1, a second convex bend fillet 33 is connected between the second bend 32 and the second plate 31, and the second bend fillet 22 is formed naturally during the process of bending the second bend 32; the first bend 22 at least partially overlaps the second bend 32 and the weld 4 is formed between the first bend radius 23 and the second bend radius 33.

Through set up first bending 22 and second bending 32 on welding continuous first connecting plate 2 and second connecting plate 3 respectively to can strengthen the welding position department of first connecting plate 2 and second connecting plate 3 respectively, prevent effectively that the production heat altered shape in welding process from, welding quality when guaranteeing the cabinet body 100 full weld, with the improvement shielding effect, and guarantee the whole outward appearance of the cabinet body 100.

Similarly, the second bending portion 32 of the embodiment of the present application may be provided with a second plate portion 321, or the second bending portion 32 may also include at least two second plate portions 321 connected in sequence at an included angle, which may be selected according to the structure and the reinforcement requirement of the particular cabinet 100, and is not limited herein.

In addition, also, in order to ensure the strength of the cabinet 100 at the welding position and at the same time determine the stable connection of the first connecting plate 2 and the second connecting plate 3 and ensure the appearance of the welding seam 4; the thickness of the second connecting plate 3 is set to t ₂ The outer circumference radius of the second bending fillet 33 is R ₂ The following relationships are satisfied: t is t ₂ ≤R ₂ ≤3t ₂ 。

In addition, first connecting plate 2 in this application adopts continuous laser welding to link to each other with second connecting plate 3 in welding seam 4 department, realizes full weld, and laser welding can obtain better welding quality, can remove the step of polishing from to improve whole outward appearance.

Several embodiments of the shielding cabinet are described in detail below.

Example one

The present embodiment provides a shielding cabinet, specifically as shown in fig. 1 to 13, which includes: cabinet 100, cabinet 100 includes: the vertical panel 5 and the end panels 6 are respectively arranged at the upper end and the lower end of the vertical panel 5, and the thicknesses of the vertical panel 5 and the end panels 6 are less than or equal to 2 mm; the vertical panel 5 comprises three panels which are sequentially bent and connected: left side face, posterior lateral plate face and right side face enclose synthetic front side between 5 and two end panels 6 and have open-ended holding chamber 1.

The upper side edge and the lower side edge of the vertical panel 5 are respectively provided with a first bend 22, the positions corresponding to the first bends 22 on the end panel 6 are respectively provided with a second bend 32, the first bends 22 and the second bends 32 are mutually overlapped, so that two welding seams 4 are formed on the outer surface of the cabinet body 100, and the end panel 6 and the vertical panel 5 are welded and connected at the two welding seams 4.

Specifically, the vertical panel 5 and the end panel 6 in this embodiment are each formed by bending a single steel plate.

And the embodiment shows the first bend 22 comprising a first panel portion 221 and the second bend 32 comprising a second panel portion 321.

Referring to fig. 7 to 10, in order to maintain the accurate positioning between the end panel 6 and the vertical panel 5 before the cabinet 100 is welded, the first bend 22 along the rear edge of the vertical panel 5 has an insertion portion 51, the second bend 32 of the end panel 6 at a position corresponding to the insertion portion 51 is provided with an insertion groove 61, and the insertion portion 51 is fittingly inserted into the insertion groove 61 from the rear to the front.

In addition, the cabinet 100 in this embodiment is made of a cold-rolled steel sheet, and the surface of the cabinet 100 is provided with an anti-rust layer, so that the surface can be prevented from rusting; correspondingly, the frame 200 is arranged along the edge of the opening of the accommodating cavity 1 and is welded with the cabinet body 100, the frame 200 is in a closed ring shape matched with the shape of the opening of the accommodating cavity 1, and the frame 200 is a stainless steel piece; in addition, in order to ensure the conductive connection between the frame 200 and the cabinet 100, an anti-rust layer should not be disposed at the position on the surface of the cabinet 100 connected with the frame 200; based on this, because most of the cabinet body 100 is made of cold-rolled steel sheets, only the frame 200 at the opening needs to be made of stainless steel, and the frame 200 and the cabinet door 300 are sealed in a conductive manner, a shielding chamber with good conductivity and sealing performance can be formed, the usage amount of stainless steel can be greatly reduced, and further the production cost is greatly reduced; in addition, the stainless steel frame 200 can also play a certain decorative effect when exposed, and the appearance is fashionable.

Illustratively, a zinc plating layer is used as an anti-rust layer on the surface of the cabinet 100.

In the preparation process, earlier realize welding with the frame 200 between the cabinet body 100 and link to each other, carry out the spraying plating operation of surface antirust layer again, and use the instrument to shield frame 200 when spraying plating for antirust layer can not be gone up by spraying plating to frame 200 of stainless steel, ensures that frame 200 can realize conductive contact with the cabinet door.

Specifically, for manufacturing and installation convenience, the frame 200 includes at least two frame strips 201 connected by welding end to end in sequence, and each frame strip 201 is formed by bending a stainless steel plate.

Illustratively, the opening of the installation cavity in this embodiment is square, and two sides of the vertical panel 5 and the front side of each end panel 6 respectively define one side forming the opening, the frame 200 includes four frame strips 201 corresponding to the sides of the opening one by one, two frame strips 201 are installed on the front side edge of each end panel 6 one by one, and the other two frame strips 201 are installed on the left and right side edges of the vertical panel 5 one by one.

Specifically, in order to ensure that the frame strip 201 and the cabinet 100 are accurately positioned and prevent the frame strip 201 from deforming in the welding process, the inner side of the frame strip 201 is provided with a sliding groove 2011, and a third bent part 9 extending towards the inside of the accommodating cavity 1 is arranged along the edge of the opening of the cabinet 100, as shown in fig. 8-12, the tail end of the third bent part 9 is inserted into the sliding groove 2011 in a matching manner, and the outer side edge of the vertical frame strip 201 is welded with the outer surface of the cabinet 100; before the vertical panel 5 and the end panel 6 are welded, each frame strip 201 is inserted into the third bend 9 of the end panel 6 and the vertical panel 5 from the side direction through the sliding groove 2011 on the frame strip, then the vertical panel 5 is welded with the end panel 6, and finally each frame strip 201 is welded with the cabinet body 100 and two adjacent frame strips 201 together, so that a structure with good conductivity and sealing performance can be prepared; when welding frame strip 201 and cabinet body 100, because the effect of holding down between spout 2011 and the third bend 9, can prevent effectively that frame strip 201 from taking place to warp in welding process, guarantee the full welding quality.

Optionally, the frame strip 201 has a cross-section

As shown in FIG. 11; in addition, it should be noted that the cross section of the frame strip 201 can also be designed as

The above technical effects can be achieved by referring to fig. 12 in particular.

In addition, in order to improve the welding quality, continuous laser welding is adopted between the outer edges of the frame strips 201 and the outer surface of the cabinet body 100 and between the frame strips 201, and polishing is not needed after the laser welding.

The shielding cabinet in this embodiment further includes: the cabinet door 300 is rotatably connected with the cabinet body 100 at one side edge of the cabinet door 300 and is used for sealing the opening of the accommodating cavity 1, the cabinet door 300 comprises an inner door panel 301, and the inner door panel 301 is made of a metal plate; when the cabinet door 300 rotates to cover the opening of the accommodating cavity 1, the inner side surface of the inner door panel 301 is in conductive connection with the frame 200 in a matching manner, so that a closed shielding cavity is defined between the cabinet body 100 and the cabinet door 300, and the communication equipment is accommodated in the shielding cavity, namely, signal shielding can be realized.

Further, in order to improve the sealing performance when the door is closed, an elastic shielding strip 302 is disposed at a position corresponding to the frame 200 on the inner side surface of the inner door panel 301, as shown in fig. 13; when the cabinet door 300 rotates to cover the opening of the accommodating chamber 1, the elastic shielding strip 302 is conductively connected to the frame strip 201, and the elastic deformation of the elastic shielding strip 302 can ensure the reliable abutting function between the elastic shielding strip 302 and the frame 200.

Specifically, the elastic shield strip 302 includes: the sponge and the conductive cloth are coated on the periphery of the sponge; the sponge can elastically deform, and the conductive cloth is in conductive contact with the frame 200.

As shown in fig. 3, the cabinet door 300 further includes: the outer door panel 303, the outer door panel 303 is a plastic plate, the outer door panel 303 covers on the outer side of the inner door panel 301; through setting outer door plant 303 to the plastic slab, can realize product lightweight design to be convenient for remove this shielding cabinet in a flexible way, increase substantially the use occasion of product.

In addition, the shielding cabinet in the application realizes a lightweight design, and the handle 10 is arranged on the cabinet body 100, so that the shielding cabinet can be flexibly carried and conveniently moved, and application occasions are widened; illustratively, the handle may be provided at the top of the cabinet body 100, and the shielding cabinet may be integrally configured as a luggage compartment for easy movement.

Illustratively, the cabinet door 300 is hinged to the cabinet 100 by a hinge (specifically, the inner door panel 301 may be hinged to the cabinet 100 or the outer door panel 303 may be hinged to the cabinet 100), and the hinge is disposed at the outer periphery of the frame 200 and the elastic shielding strip 302.

As shown in fig. 5, 8 and 10, an orifice 110 is formed at the bottom of the cabinet 100, a blind rivet nut (not specifically shown in the drawings) is installed in the orifice 110, and the blind rivet nut has a threaded hole, and the threaded hole is a blind hole with a downward opening; the shielding cabinet still includes: the base 500, the base 500 is located the bottom of the cabinet body 100, the base 500 is provided with a connecting hole, a screw member passes through the connecting hole from bottom to top and then is connected with the threaded hole, and the base 500 is connected with the cabinet body 100. The drainage process of the conventional cabinet 100 in the cleaning process is complex, and needs to be added, but the present application can be used for automatic drainage after cleaning through the orifice 110 arranged at the bottom, and no additional drainage process is needed; after drainage, the rivet nut is installed at the hole 110 of the cabinet 100 for connecting the base 500 with the cabinet 100, and since the threaded hole formed in the rivet nut is a blind hole, the hole 110 can be sealed to prevent a gap from being generated, thereby effectively preventing signal leakage, whereas the base 500 is installed in a manner of screwing the bottom of the cabinet 100 in the prior art, and in order to prevent signal leakage, welding needs to be performed in the peripheral gap of the screw, which makes the operation complicated.

Illustratively, an aperture 110 is opened at each of the four corners of the bottom of the cabinet 100.

In some embodiments of the present application, in order to ensure the sealing effect between the inner door panel 301 and the frame 200 when the door is closed, a magnet 400 is disposed at the outer peripheral position of the frame 200 on the front side of the cabinet 100 and/or a magnet 400 is disposed at the outer peripheral position of the elastic shielding strip 302 on the inner side of the inner door panel 301, as shown in fig. 4 in particular, the magnetic attraction between the magnet 400 and the inner door panel 301 or between the magnet 400 and the cabinet 100 compresses the cabinet door 300 on the front side of the cabinet 100, so as to form a completely sealed shielding cavity therein, thereby improving the shielding effect.

Example two

As shown in fig. 14-16, the present embodiment provides a shielding cabinet, which is different from the first embodiment in one of the following points: the second bend 32 is not provided in the end panel 6 and the weld 4 is defined between the first bend fillet 23 and the panel surface of the end panel 6.

Another difference between this embodiment and the first embodiment is that: the cabinet body 100 panel beating that vertical plate 5 and two end panels 6 in this embodiment formed for bending through a monoblock steel sheet specifically bends the amalgamation earlier and forms the open box structure of forward side, and the rethread is respectively continuous with the left and right sides edge and the vertical plate 5 welding of end plate to form semi-closed form.

Illustratively, the first bend fillet 23 formed at the bend of the first bend 22 in the present embodiment is aligned with the side edge of the end panel 6, and the overall appearance can be ensured.

Other structures of this embodiment are the same as those of the first embodiment, and are not described herein.

EXAMPLE III

As shown in fig. 17 to 21, the present embodiment provides a shielding cabinet, which is different from the first and second embodiments mainly in the structure of the cabinet body 100.

The cabinet body 100 of the shielding cabinet in this embodiment includes: the first enclosing plate 7 and the second enclosing plate 8 are both equal to or less than 2 mm in plate thickness, the first enclosing plate 7 and the second enclosing plate 8 are sequentially connected end to form a grid shape so as to define an accommodating cavity 1 with an opening at the front side and the rear side respectively, a frame 200 is arranged at the edge of each opening, and a cabinet door 300 is correspondingly arranged outside each opening; specifically, the two first bends 22 are respectively disposed at the two end side edges of the first enclosing plate 7, for convenience of description, the two first bends 22 are respectively defined as a head first bend 22 and a tail first bend 22, a second bend 32 is disposed at a side edge of the second enclosing plate 8 opposite to the head first bend 22, the head first bend 22 is connected to one end plate of the second enclosing plate 8, a weld 4 (as shown in fig. 20) is formed between a first bend fillet 23 formed at the bend of the head first bend 22 and a plate of the second enclosing plate 8, the tail first bend 22 is connected to the second bend 32, a weld 4 (as shown in fig. 21) is jointly defined between a first bend fillet 23 formed at the bend of the tail first bend 22 and a second bend fillet 33 formed at the bend of the second bend 32, and the first enclosing plate 7 and the second enclosing plate 8 are connected by welding through the two weld 4.

In addition, for structural requirements and further ensuring welding strength, the side edge of the end part of the second enclosing plate 8, which is connected with the first head part bend 22, is provided with a bend connecting part 81, and as shown in fig. 20 in particular, the first head part bend 22 is overlapped on the plate surface of the bend connecting part 81; this connecting portion 81 department of buckling protrusion in the side surface of second bounding wall 8 to form eaves portion at the side top of second bounding wall 8, thereby be located the lateral surface space of the connecting portion 81 below of buckling with second bounding wall and inject and form installation space 120, as shown in fig. 19, this installation space 120 can be used to the installation drive mechanism, drive mechanism etc. of unblanking or supplementary unblanking, also can be used to the holding other functional module.

Specifically, in this embodiment, the first leading bend 22 and the first trailing bend 22 in the first enclosing plate 7 each include two first plate portions 221 sequentially connected at an included angle, so that the strength at the welding position can be further ensured, and welding deformation can be prevented.

Specifically, the first enclosing plate 7 and the second enclosing plate 8 in the present embodiment are respectively formed by bending a steel plate.

This written description discloses the application with reference to the drawings, and also enables one skilled in the art to practice the application, including making and using any devices or systems, using suitable materials, and using any incorporated methods. The scope of the present application is defined by the claims and includes other examples that occur to those skilled in the art. Such other examples are to be considered within the scope of the claims as long as they include structural elements that do not differ from the literal language of the claims, or that they include equivalent structural elements with insubstantial differences from the literal language of the claims.

Claims

1. A shielded cabinet, comprising: the cabinet body is internally provided with an accommodating cavity with at least one opening;

the first connecting plate comprises a first plate body and a first bend which is arranged along the edge of the first plate body and extends towards the inside of the accommodating cavity, a convex first bending fillet is connected between the first bend and the first plate body, at least part of the first bend and the second connecting plate are in lap joint, a welding seam is limited between the first bending fillet and the plate surface of the second connecting plate and is positioned on the outer surface of the cabinet body, and the first connecting plate and the second connecting plate are connected in a welding manner at the welding seam;

the first connection plate has a plate thickness t ₁ The periphery radius of the first bending fillet is R ₁ Wherein: t is t ₁ ≤R ₁ ≤3t ₁ 。

2. Shielding cabinet according to claim 1, wherein the first bend comprises one first panel section or comprises at least two first panel sections connected in series at an angle.

3. The shielded cabinet of claim 1, wherein the cabinet body comprises: the vertical panel and the end panels are respectively arranged at the upper end and the lower end of the vertical panel;

the upright panel is configured as the first connecting plate, the end panel is configured as the second connecting plate, the first bends are respectively arranged along the upper edge and the lower edge of the upright panel, and the end panel is lapped on the first bends.

4. The shielding cabinet of claim 3, wherein the vertical panel and the two end panels are made of sheet metal bent from a steel plate.

5. The shielded cabinet of claim 1, wherein the cabinet body comprises: the first enclosing plate and the second enclosing plate are sequentially connected end to form a frame shape;

6. The shielding cabinet of claim 5, wherein a side edge of the second enclosing panel opposite to the first bend is provided with a bent connecting portion, and the first bend overlaps the bent connecting portion.

7. The shielding cabinet of claim 5, wherein the first enclosure panel and the second enclosure panel are each formed by bending a steel plate.

8. The shielding cabinet according to claim 1, wherein the second connecting plate includes a second plate body and a second bend disposed along an edge of the second plate body, the second bend extends toward an inside of the accommodating cavity, and a second convex bend fillet is connected between the second bend and the second plate body;

the first bending and the second bending are at least partially overlapped, and the welding seam is formed between the first bending fillet and the second bending fillet.

9. The shielding cabinet of claim 8, wherein the second connecting plate has a plate thickness t ₂ The peripheral radius of the second bending fillet is R ₂ Wherein: t is t ₂ ≤R ₂ ≤3t ₂ 。

10. The shielding cabinet of claim 8, wherein the second bend comprises one second panel portion or at least two second panel portions that are sequentially connected at an angle.

11. The shielded cabinet of claim 8, wherein the cabinet body comprises: the vertical plate and the end plates are respectively arranged at the upper end and the lower end of the vertical plate;

the vertical panel is configured as the first connecting plate, the end panel is configured as the second connecting plate, the first bends are respectively arranged along the upper edge and the lower edge of the vertical panel, and the second bends are arranged along the edge of the end panel corresponding to the first bends.

12. The shielding cabinet of claim 11, wherein said vertical panels and said end panels are each formed by bending a single steel plate.

13. The shielding cabinet of claim 11, wherein the first bend along the rear side edge of the riser panel has a mating portion;

14. The shielded cabinet of claim 8, wherein the cabinet body comprises: the first enclosing plate and the second enclosing plate are sequentially connected end to form a frame shape;

15. The shielding cabinet of claim 14, wherein the first enclosure panel and the second enclosure panel are each formed by bending a steel plate.

16. The shielding cabinet of any one of claims 1-15, wherein the first connecting plate and the second connecting plate are joined at the weld using a laser weld.

17. The shielding cabinet according to any one of claims 1 to 15, wherein the cabinet body is made of a cold-rolled steel plate, and the surface of the cabinet body is provided with an anti-rust layer; the shielding cabinet further comprises:

18. The shielding cabinet of claim 17, wherein the frame comprises at least two frame strips welded end to end, and each frame strip is formed by bending a stainless steel plate.

19. The shielding cabinet of claim 18, wherein the frame strips have sliding grooves on the inner side thereof, a third bend extending toward the accommodating cavity is disposed along the opening edge of the cabinet body, the end of the third bend is inserted into the sliding groove in a matching manner, and the outer edge of the vertical frame strip is welded to the outer surface of the cabinet body.

20. The shielding cabinet of claim 18, wherein the outer edges of the frame strips and the outer surface of the cabinet body and the frame strips are laser welded together.

21. The shielded cabinet of claim 17, further comprising:

the cabinet door is rotatably connected with one side edge of the cabinet body and used for sealing the opening of the accommodating cavity, and the cabinet door comprises an inner door plate which is a metal plate;

22. The shielding cabinet of claim 21, wherein an elastic shielding strip is disposed at a position corresponding to the frame on the inner side of the inner door panel;

23. The shielding cabinet of claim 22, wherein the resilient shielding strip comprises:

sponge; and

and the conductive cloth is coated on the periphery of the sponge.

24. The screen door of claim 21, wherein the cabinet door further comprises:

25. The shielding cabinet of any one of claims 1-15, wherein a handle is provided on the cabinet body.

26. The shielding cabinet according to any one of claims 1 to 15, wherein an orifice is opened at the bottom of the cabinet body, a rivet nut is installed in the orifice, the rivet nut has a threaded hole, and the threaded hole is a blind hole with a downward opening; the shielding cabinet further comprises: