Shielding frame corner bending structure

Abstract

The utility model discloses a shielding rack corner bending structure, which comprises a shielding rack body, the shielding rack body is arranged in a rectangular plate-shaped structure, each edge of the shielding rack body is provided with a bending part which extends outwards, and each end corner of the shielding rack body is provided with a corner part which extends outwards; the corner part comprises a first splicing part and a second splicing part which surround the end corners of the shielding frame body, the first splicing part and the second splicing part form an L-shaped structure, and the end parts of the first splicing part and the second splicing part are spliced with the end parts of the opposite bending parts respectively. According to the utility model, the problems of high manufacturing requirement and high cost of the existing shielding frame structure are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding, in particular to a corner bending structure of a shielding frame. Background Art

[0002] In electronic devices, some electronic components on a circuit board will emit high-frequency electromagnetic waves during operation, and the high-frequency electromagnetic waves will cause certain interference to the normal operation of other electronic components on the circuit board. In order to avoid or reduce the interference and radiation of high-frequency electromagnetic waves on electronic components, in the prior art, an electromagnetic shielding frame is usually used to cover the devices to be shielded on the circuit board to achieve the purpose of electromagnetic shielding.

[0003] The existing shielding frames are usually rectangular frame structures. During the processing, the initial state is a plate-like structure, and it needs to be processed into a frame structure with flanges on all sides through a mold. The existing processing methods usually directly perform stretching and mold processing on the plate-like structure. Especially at its corners, due to the complex structure, the requirements for the mold for stretching and forming the bracket are relatively high, which will lead to an increase in cost. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a corner bending structure of a shielding frame, aiming to solve the problems of high manufacturing requirements and high cost of the existing shielding frame structure.

[0005] To achieve the above purpose, the utility model provides a corner bending structure of a shielding frame, including a shielding frame body. The shielding frame body is arranged in a rectangular plate-like structure. Each side of the shielding frame body is provided with a bending part extending outward, and each end angle of the shielding frame body is provided with a corner part extending outward; the corner part includes a first splicing part and a second splicing part surrounding the end angle of the shielding frame body. The first splicing part and the second splicing part form an L-shaped structure, and the ends of the first splicing part and the second splicing part are respectively spliced with the ends of the opposite bending parts.

[0006] Optionally, at least one protrusion is provided at the end of the bending part, and grooves adapted to be spliced with the protrusion are respectively provided at the ends of the first splicing part and the second splicing part.

[0007] Optionally, the protrusion and the groove are arranged in a gourd shape.

[0008] Optionally, the shielding frame body, the bending part and the corner part are set as an integrally formed structure.

[0009] Optionally, the shielding frame body, the bending part and the corner part have the same thickness, and are set to be 0.1 mm to 0.3 mm.

[0010] Optionally, the bending part, the first splicing part and the second splicing part have the same width, and are all set to be 1 mm to 7 mm.

[0011] Optionally, the lengths of the first splicing part and the second splicing part are equal, and are both set to be 4 mm to 7 mm.

[0012] Optionally, the shielding frame body, the bending part and the corner part are integrally formed structures made of cupronickel or stainless steel or aluminum.

[0013] The beneficial effects of the present utility model are as follows: The structure of the existing shielding frame is improved. The bending parts of each side of the shielding frame body are set as independent bending structures, and independent corner parts are respectively arranged at the four end corners of the shielding frame body. After the respective bending parts and corner parts are independently bent, the adjacent corner parts and bending parts are correspondingly spliced to form a complete and continuous frame structure, with simple processing technology, convenient bending and low cost. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the bending structure of the shielding frame of the present utility model;

[0016] Figure 2 It is a schematic diagram of the unfolded structure of the shielding frame of the present utility model;

[0017] Figure 3 For the present utility model Figure 2 Partial enlarged view at A;

[0018] The realization, functional features and advantages of the object of the present utility model will be further described in conjunction with the embodiments and with reference to the drawings. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0020] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0021] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "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 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 the present utility model.

[0022] An embodiment of the present utility model provides a shielding frame corner bending structure, which includes a shielding frame body 1. The shielding frame body 1 is arranged in a rectangular plate-like structure. Each side of the shielding frame body 1 is provided with a bending portion 2 extending outward, and each end corner of the shielding frame body 1 is provided with a corner portion extending outward; the corner portion includes a first splicing portion 31 and a second splicing portion 32 surrounding the end corner of the shielding frame body 1. The first splicing portion 31 and the second splicing portion 32 form an L-shaped structure, and the end parts of the first splicing portion 31 and the second splicing portion 32 are respectively spliced with the end parts of the opposite bending portions 2.

[0023] It should be noted that the structure of the existing shielding frame is improved. The bending portions 2 on each side of the shielding frame body 1 are set as independent bending structures, and independent corner portions are respectively arranged at the four end corner positions of the shielding frame body 1. After the respective bending portions 2 and corner portions are independently bent, the adjacent corner portions and the bending portions 2 are correspondingly spliced to form a complete and continuous frame structure, with simple processing technology, convenient bending, and low cost.

[0024] Specifically, in this embodiment, when bending, the corner parts at the four end corners of the shielding frame body 1 are respectively bent 90° in the same direction, so as to complete the bending of the four end corners. The two ends of the corner part respectively extend to two adjacent sides of the straight shielding frame body 1; then the bending parts 2 extending from the four sides of the shielding frame body 1 are respectively bent 90° in the same direction. After the bending parts 2 are bent, the end parts of the bending parts 2 are correspondingly spliced with the end parts of the aforementioned bent corner parts, so as to splice the bending parts 2 and the corner parts into a complete continuous frame structure, thus completing the overall bending operation of the shielding frame. It should be noted that in this embodiment, the first connecting part and the second connecting part of the corner part are respectively located on two adjacent sides of the shielding frame body 1. Among them, the lengths of the first connecting part and the second connecting part are too short, and the structural rigidity is insufficient, which is not conducive to the mutual splicing of the corner part and the bending part 2. When the length is too long, the stress of the corner part during bending is large, which is likely to cause the shielding frame body 1 to deform and affect the flatness of the structure. Therefore, in this embodiment, the lengths of the first splicing part 31 and the second splicing part 32 are equal, and are both set to be 4 mm to 7 mm.

[0025] Further, at least one protrusion 21 is provided at the end of the bending part 2, and grooves 33 adapted for splicing with the protrusion 21 are respectively provided at the end parts of the first splicing part 31 and the second splicing part 32. In this embodiment, the first splicing part 31, the second splicing part 32 and the corner part are spliced through the structure of the protrusion 21 and the groove 33. When the bending part 2 is bent in place, the protrusion 21 at its end is correspondingly inserted into the corresponding groove 33 to complete the splicing of the structure, so that a complete continuous frame structure is formed at the edge of the shielding frame body 1, ensuring the normal use of the shielding function.

[0026] It should be noted that the structures of the protrusion 21 and the groove 33 can be selected and designed according to actual production requirements. In this embodiment, the protrusion 21 and the groove 33 are arranged in a gourd shape. The edge of the gourd-shaped structure is curved, which can improve the fitting degree of the protrusion 21 and the groove 33, so that the two can be closely fitted, and the stability of the structure is improved.

[0027] Further, the shielding frame body 1, the bending part 2 and the corner part are set as an integrally formed structure. In this embodiment, the shielding frame body 1, the bending part 2 and the corner part can be integrally formed by stamping. The process is simple, the cost is low, and the efficiency is higher. Specifically, the shielding frame body 1, the bending part 2 and the corner part are set as an integrally formed structure made of cupronickel or stainless steel or aluminum. Preferably, cupronickel material is used. Cupronickel is also called copper-nickel-zinc alloy and is usually used for the manufacture of electromagnetic shielding frames. This alloy is composed of copper, nickel and zinc, has good electrical conductivity and magnetic conductivity, and is suitable for various applications requiring electromagnetic shielding.

[0028] Further, the shielding frame body 1, the bending part 2 and the corner part have the same thickness, which is set to be 0.1 mm to 0.3 mm. It should be noted that if the thicknesses of the shielding frame body 1, the bending part 2 and the corner part are too thin, the rigidity of the overall structure will be affected, resulting in low structural stability. If they are too thick, the cost will be high. Therefore, in this embodiment, a thickness of 0.1 mm to 0.3 mm is adopted to save costs and improve the stability of the product.

[0029] Further, the bending part 2, the first splicing part 31 and the second splicing part 32 have the same width, which is set to be 1 mm to 7 mm. The widths of the bending part 2, the first splicing part 31 and the second splicing part 32 will affect the overall height of the shielding cover, and its specific height can be designed according to the height of the actual electronic product. In this embodiment, its width is 1 mm to 7 mm, which is suitable for most electronic products in the prior art.

[0030] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields shall be included in the patent protection scope of the present invention.

Claims

1. A shielding frame corner bending structure, characterized in that: It includes a shielding frame body, which is arranged in a rectangular plate-like structure, each side of the shielding frame body is respectively provided with a bending portion extending outward, and each end corner of the shielding frame body is respectively provided with a corner portion extending outward; the corner portion includes a first splicing portion and a second splicing portion surrounding the end corner of the shielding frame body, the first splicing portion and the second splicing portion form an L-shaped structure, and the ends of the first splicing portion and the second splicing portion are respectively spliced ​​with the ends of the bending portions opposite thereto.

2. The shielding frame corner bending structure according to claim 1, characterized in that: At least one protrusion is provided at the end of the bending portion, and grooves adapted to be spliced ​​with the protrusion are respectively provided at the ends of the first splicing portion and the second splicing portion.

3. The shielding frame corner bending structure according to claim 2, characterized in that: The protrusions and the grooves are arranged in a gourd shape.

4. The shielding frame corner bending structure according to claim 1, characterized in that: The shielding frame body, the bending portion and the corner portion are arranged as an integrally formed structure.

5. The shielding frame corner bending structure according to claim 4, characterized in that: The thickness of the shielding frame body, the bending portion and the corner portion are equal and are set to 0.1 mm to 0.3 mm.

6. The shielding frame corner bending structure according to claim 5, characterized in that: The widths of the bending portion, the first splicing portion and the second splicing portion are equal and are all set to be 1 mm to 7 mm.

7. The shielding frame corner bending structure according to claim 6, characterized in that: The lengths of the first joint portion and the second joint portion are equal, and are both set to 4 mm to 7 mm.

8. The shielding frame corner bending structure according to claim 4, characterized in that: The shielding frame body, the bending portion and the corner portion are configured as an integrally formed structure made of nickel silver, stainless steel or aluminum.

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