Shielding case with folded edge buckling structure

Abstract

The utility model discloses a shielding case with a folded edge buckling structure, which comprises a case body and a cover plate, a window is arranged on the top surface of the case body, the cover plate covers the window, a plurality of buckling holes are circumferentially distributed on the outer side of the window on the top surface of the case body, and a plurality of outwards inclined spring pieces are circumferentially arranged on the side edge of the cover plate. The spring piece is buckled in the buckling hole; according to the design, the cover plate and the cover body are buckled and disassembled through the cooperation between the spring piece and the buckling hole, the requirement for the position precision between the spring piece and the buckling hole is not high in the mode, and the requirement for the precision of a mold for producing the shielding cover is correspondingly reduced; therefore, the device is simple in structure, convenient to disassemble and assemble and low in production and manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of shielding covers, and particularly to a shielding cover with a flanging and buckling structure. Background Art

[0002] Shielding is a device method in electrical engineering. To prevent external electric fields, magnetic fields, or electromagnetic fields from interfering with internal devices or to avoid the electromagnetic fields of devices from affecting the outside world, the device is placed in a closed or approximately closed metal shell or metal mesh cover, and this metal shell or mesh cover is called a shielding cover.

[0003] To facilitate the repair of the devices inside the shielding cover, a window is usually opened on the cover body of the shielding cover. To ensure the normal use of the shielding cover, a cover plate also needs to be covered at this window.

[0004] In the prior art, the cover plate and the cover body are usually buckled and connected by convex bumps and holes. This connection method requires each convex bump to be just buckled in the corresponding hole. Therefore, when manufacturing the cover plate and the cover body, there are certain dimensional accuracy requirements for the position and size of each convex bump and hole, resulting in a relatively high production cost of the cover plate and the cover body. Utility Model Content

[0005] The main purpose of this application is to propose a shielding cover with a flanging and buckling structure, aiming to solve the problem of relatively high production cost of the shielding cover.

[0006] To achieve the above object, the shielding cover with a flanging and buckling structure proposed by this application includes: a cover body and a cover plate. A window is opened on the top surface of the cover body, the cover plate covers the window, a plurality of buckling holes are circumferentially distributed on the top surface of the cover body outside the window, and a plurality of spring pieces inclined outward are circumferentially arranged on the side edge of the cover plate, and the spring pieces are buckled in the buckling holes.

[0007] Optionally, the angle between the spring piece and the cover plate is 90° - 95°.

[0008] Optionally, the lower end of each spring piece is provided with a flanging in the outer direction of the window, and each flanging is turned 180° and overlaps with the corresponding spring piece, so that the lower end of each spring piece forms a circular arc-shaped curled edge.

[0009] Optionally, the end surface of the flanging of each spring piece is chamfered, so that the end surface of the flanging of each spring piece forms an outward inclined surface.

[0010] Optionally, the angle of the inclined surface is 45°.

[0011] Optionally, the window and the cover plate are both rectangular.

[0012] Optionally, the number of the fastening holes is four, and the four fastening holes are respectively distributed on the four sides of the window; each of the spring pieces is divided into four groups, and the four groups of spring pieces are respectively distributed on the four sides of the cover plate, and the four groups of spring pieces respectively correspond to the four fastening holes.

[0013] Optionally, the lengths of the four fastening holes are all equal to the side length corresponding to the window, and the widths of the four fastening holes are all greater than or equal to twice the thickness of the spring piece.

[0014] Optionally, both the cover body and the cover plate are made of metal plates with magnetic shielding effects.

[0015] Optionally, each of the spring pieces is integrally formed with the cover plate.

[0016] In the technical solution of the present application, by providing fastening holes on the cover body and spring pieces on the cover plate, when the cover plate is pressed, the spring pieces will snap into the fastening holes, and the folded edges on the spring pieces will hook the inner edges of the fastening holes, so that the cover plate can be fastened to the cover body; when disassembling, by adsorbing the suction cup on the surface of the cover plate and pulling the cover plate outwards, the reaction force of the inner edge of the fastening hole will push the spring piece, causing the spring piece to elastically deform inwards and pulling the spring piece out of the fastening hole, then the cover plate can be disassembled. At this time, the components inside the shielding case can be repaired and replaced through the window. This design realizes the fastening and disassembly between the cover plate and the cover body through the cooperation between the spring piece and the fastening hole. This method has low requirements for the position accuracy between the spring piece and the fastening hole, and correspondingly reduces the requirements for the mold accuracy of producing this shielding case; therefore, this device has a simple structure, is convenient for assembly and disassembly, and has a low production and manufacturing cost. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0018] Figure 1 It is a schematic structural diagram of a shielding case with a folded-edge fastening structure according to the present application;

[0019] Figure 2 It is a schematic diagram of the separated structure of the cover body and the cover plate of a shielding case with a folded-edge fastening structure;

[0020] Figure 3 It is a schematic front view structural diagram of a shielding case with a folded-edge fastening structure;

[0021] Figure 4 For the shielding case with a folded-edge fastening structureFigure 2 Schematic enlarged view of the structure at A in the [specific context].

[0022] Explanation of the reference numerals in the attached drawings:

[0023] 1. Cover body; 101. Window; 102. Latching hole; 2. Cover plate; 201. Spring piece; 202. Inclined surface.

[0024] The realization of the purpose of this application, functional features and advantages will be further described in combination with embodiments with reference to the accompanying drawings. Specific embodiments

[0025] Next, the technical solutions in the embodiments of this application will be clearly and completely described in combination with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] It should be noted that when an element is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0027] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to this application.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application.

[0030] In the prior art, the cover plate and the cover body are usually connected by snap-fitting of convex bumps and holes. This connection method requires each convex bump to be exactly snap-fitted into the corresponding hole. Therefore, when manufacturing the cover plate and the cover body, there are certain dimensional accuracy requirements for the position and size of each convex bump and hole, resulting in a relatively high production cost of the cover plate and the cover body.

[0031] In view of this, this application proposes a shielding cover with a flanging snap-fitting structure, including: a cover body 1 and a cover plate 2. A window 101 is opened on the top surface of the cover body 1, the cover plate 2 covers the window 101, and a plurality of snap-fitting holes 102 are circumferentially distributed on the top surface of the cover body 1 outside the window 101. A plurality of outwardly inclined spring pieces 201 are circumferentially arranged on the side edge of the cover plate 2, and the spring pieces 201 are snap-fitted into the snap-fitting holes 102.

[0032] In the embodiment of this application, referring to Figures 1 to 4 , the above-mentioned shielding cover with a flanging snap-fitting structure includes: a cover body 1 and a cover plate 2. The cover body 1 is a square cover-like structure with an open bottom surface. A rectangular window 101 is opened on the top surface of the cover body 1 for maintaining the internal components of the cover body 1.

[0033] Referring to Figure 2 , four snap-fitting holes 102 are circumferentially distributed on the top surface of the cover body 1 outside the window 101. The four snap-fitting holes 102 are respectively distributed on the four sides of the window 101, and the four snap-fitting holes 102 are all elongated through holes.

[0034] Referring to Figure 2 , the cover plate 2 is arranged on the top surface of the cover body 1 corresponding to the window 101. The shape of the cover plate 2 is the same as the shape of the window 101 and is used to cover the window 101. A plurality of outwardly inclined spring pieces 201 are circumferentially arranged on the side surface of the cover plate 2. The angle between each spring piece 201 and the cover plate 2 is 90° - 95°. Each spring piece 201 has elasticity, and each spring piece 201 is integrally formed with the cover plate 2. Each spring piece 201 is divided into four groups, and each spring piece 201 in each group is evenly distributed. The four groups of spring pieces 201 are respectively distributed on the four sides of the cover plate 2, and the four groups of spring pieces 201 respectively correspond to the four snap-fitting holes 102, so that the four groups of spring pieces 201 can be respectively snapped into the corresponding snap-fitting holes 102.

[0035] Reference Figure 2 and Figure 4 , at the lower ends (outer ends, i.e., the ends away from the cover plate) of each spring piece 201, flanges are provided in the outer direction of the window 101. Each flange is turned over by 180° and overlaps with the corresponding spring piece 201, so that the lower ends of each spring piece 201 form arc-shaped curled edges, making it smoother for each spring piece 201 to enter the corresponding fastening hole 102. At the same time, each flange will hook the inner edge of the fastening hole 102.

[0036] Reference Figure 2 , the lengths of the four fastening holes 102 are all equal to the corresponding side lengths of the window 101, and the widths of the four fastening holes 102 are all greater than or equal to twice the thickness of the spring piece 201, so that the spring piece 201 with a flange can enter the corresponding fastening hole 102.

[0037] Reference Figure 3 , since the cover plate 2 and the housing 1 are fastened by the spring piece 201 being snapped into the fastening hole 102, after the cover plate 2 and the housing 1 are fastened, the space occupied by the shielding cover is smaller.

[0038] Reference Figure 4 , the end faces of the flanges of each spring piece 201 are chamfered, so that the end faces of the flanges of each spring piece 201 form outward inclined surfaces 202, and the angles of the inclined surfaces 202 are all 45°. When the cover plate 2 is disassembled, the inner edge of the fastening hole 102 will slide along the inclined surface 202, pushing the corresponding spring pieces 201 to deform, so that each spring piece 201 can more smoothly withdraw from the fastening hole 102, thereby making the disassembly of the cover plate 2 more convenient and labor-saving.

[0039] The housing 1 and the cover plate 2 are both made of metal plates with magnetic shielding effects. The metal plates can be made of materials such as stainless steel, aluminum alloy, and cupronickel. By transmitting the metal plate into the mold for stamping, the metal plate is bent into the housing 1 and the cover plate 2.

[0040] When the device is in use, the housing 1 covers the outside of the device to be shielded, and the cover plate 2 covers the outside of the window 101. By snapping the spring piece 201 into the corresponding fastening hole 102 and making the flange of the spring piece 201 hook the inner edge of the fastening hole 102, the cover plate 2 and the housing 1 are fastened together. With this design, as long as the spring piece 201 can enter the fastening hole 102 and the flange hooks the inner edge of the fastening hole 102, the fastening of the cover plate 2 and the housing 1 can be achieved. Compared with the prior art, when manufacturing the housing 1 and the cover plate 2, the dimensional accuracy requirements for the cover plate 2, the housing 1, the window 101, the fastening hole 102, and the spring piece 201 do not need to be too high. Similarly, the mold accuracy requirements for manufacturing the housing 1 and the cover plate 2 are not high, so that the manufacturing cost of the shielding cover can be reduced.

[0041] In the technical solution of this application, by providing a fastening hole on the cover body and a spring piece on the cover plate, when the cover plate is pressed, the spring piece will snap into the fastening hole, and the folded edge on the spring piece will hook the inner edge of the fastening hole, enabling the cover plate to be fastened to the cover body; during disassembly, by adsorbing a suction cup on the surface of the cover plate and pulling the cover plate outwards, the reaction force of the inner edge of the fastening hole will push the spring piece, causing the spring piece to elastically deform inwards and pulling the spring piece out of the fastening hole, then the cover plate can be disassembled. At this time, the components inside the shielding cover can be repaired and replaced through the window. This design realizes the fastening and disassembly between the cover plate and the cover body through the cooperation between the spring piece and the fastening hole. This method has low requirements for the positional accuracy between the spring piece and the fastening hole, and correspondingly reduces the requirements for the mold accuracy of producing this shielding cover; therefore, this device has a simple structure, is convenient for disassembly and assembly, and has a low production cost.

[0042] The above are only optional embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of this application under the inventive concept of this application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of this application.

Claims

1. A shielding cover with a folding edge snap-fit ​​structure, characterized in that: include: A cover body and a cover plate, wherein a window is provided on the top surface of the cover body, the cover plate covers the window, a plurality of snap-fit ​​holes are distributed circumferentially on the outer side of the window on the top surface of the cover body, a plurality of outwardly inclined spring sheets are circumferentially arranged on the side edges of the cover plate, and the spring sheets are snapped into the snap-fit ​​holes.

2. The shielding cover with a folded edge buckling structure as claimed in claim 1, characterized in that: The angle between the spring sheet and the cover plate is 90° to 95°.

3. The shielding cover with a folding and buckling structure as claimed in claim 1, characterized in that: The outer end of each spring sheet is provided with a folded edge toward the outside of the window, each folded edge is turned 180 degrees and overlaps with the corresponding spring sheet, and the folded edge forms an arc-shaped curled edge at the lower end of each spring sheet.

4. The shielding cover with a folded edge buckling structure as claimed in claim 3, characterized in that: The folded edge end faces of each of the spring sheets are chamfered, and the chamfering makes the folded edge end faces of each of the spring sheets form outward inclined surfaces.

5. The shielding cover with a folding and buckling structure as claimed in claim 4, characterized in that: The angles of the inclined surfaces are all 45°.

6. The shielding cover with a folding and buckling structure as claimed in claim 1, characterized in that: The window and the cover plate are both rectangular.

7. The shielding cover with a folding and buckling structure as claimed in claim 6, characterized in that: The number of the buckling holes is four, and the four buckling holes are respectively distributed on the four sides of the window; each of the spring sheets is divided into four groups, and the four groups of spring sheets are respectively distributed on the four sides of the cover plate, and the four groups of spring sheets correspond to the four buckling holes respectively.

8. The shielding cover with a folding and buckling structure as claimed in claim 7, characterized in that: The lengths of the four buckling holes are all equal to the lengths of the sides corresponding to the windows, and the widths of the four buckling holes are all greater than or equal to twice the thickness of the spring sheet.

9. The shielding cover with a folding and buckling structure as claimed in claim 1, characterized in that: The cover body and the cover plate are both structures made of metal plates with magnetic shielding function.

10. The shielding cover with a folding and buckling structure according to any one of claims 1 to 9, characterized in that: Each of the spring sheets is integrally formed with the cover plate.

Images