Shielding structure for clamping cable

Abstract

The utility model discloses a shielding structure for clamping a cable, which is arranged on a PCB (Printed Circuit Board), the shielding structure comprises at least two shielding covers which are arranged adjacently, opposite side surfaces of the two shielding covers are respectively provided with a plurality of lug bosses, and the cable is clamped between the two shielding covers and is clamped through the lug bosses. According to the utility model, the cable is supported by the protruding parts on the two sides, and the two sides of the cable are clamped and limited by the protruding parts, so that the cable is clamped between the two shielding covers, and the wiring path of the cable on the PCB is limited.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, and particularly relates to a shielding structure for clamping a cable. Background Art

[0002] In electronic devices, when cabling the cable lines (such as coaxial RF cables) on the PCB (Printed Circuit Board), reasonable planning and fixation are required to ensure the stability and reliability of the lines, and at the same time reduce electromagnetic interference. Currently, common cable fixing methods include fixing with tape and fixing with wire clips. Fixing with tape is to paste the cable on the surface of the PCB with tape. Although this method is simple, it is not very firm, and there are many components on the PCB, and the positions where it can be glued are small. Fixing with wire clips is to fix the cable on the surface of the PCB using wire clips. This method occupies the space of the PCB, increases the cost, and the cabling path is not flexible enough.

[0003] Therefore, the existing technology still needs to be improved and enhanced. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present utility model is to provide a shielding structure for clamping a cable, which clamps the cable between two shielding covers and clamps it through each convex part to limit the cabling path of the cable on the PCB.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A shielding structure for clamping a cable is provided on a PCB, and it includes at least two adjacent shielding covers. A plurality of convex parts are respectively provided on the opposite sides of the two shielding covers. The cable is clamped between the two shielding covers and clamped through each convex part.

[0007] In the shielding structure for clamping a cable, the two adjacent shielding covers and the convex parts on the opposite two sides are arranged in a mutually staggered and crossed manner.

[0008] In the shielding structure for clamping a cable, the distance between two adjacent convex parts on the shielding cover is 7 mm.

[0009] In the shielding structure for clamping a cable, the distance between two mutually staggered convex parts on the two adjacent shielding covers is 3 mm.

[0010] In the shielding structure for clamping a cable, the height of the convex part has an interference fit with the cable.

[0011] In the described shielding structure for clamping a cable, there are also several clamping strips, and the clamping strips are abutted against the side of the cable with a space and welded to the PCB board.

[0012] Compared with the prior art, the shielding structure for clamping a cable provided by the present utility model is arranged on the PCB board. The shielding structure includes at least two adjacent shielding covers. On the opposite side surfaces of the two shielding covers, there are respectively provided several protruding parts. The cable is clamped between the two shielding covers and clamped by each protruding part. By the respective protruding parts on both sides to resist the cable, the two sides of the cable are clamped and limited by the protruding parts, so as to clamp the cable between the two shielding covers and limit the wiring path of the cable on the PCB board. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the application of the shielding structure provided by the present utility model on the PCB board.

[0014] Figure 2 It is a schematic structural diagram of the shielding structure provided by the present utility model.

[0015] Figure 3 It is a schematic diagram of the shielding structure provided by the present utility model and the cable. Detailed Embodiments

[0016] The present utility model provides a shielding structure for clamping a cable. To make the purpose, technical solution and advantages of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0017] Please refer to Figure 1 、 Figure 2 and Figure 3 . A shielding structure for clamping a cable provided by the present utility model is arranged on the PCB board 10. The shielding structure includes at least two adjacent shielding covers (21, 22, 23, 24). On the opposite side surfaces of the two shielding covers, there are respectively provided several protruding parts (31, 32, 33, 34). The cable 40 is clamped between the two shielding covers and clamped by each protruding part.

[0018] Among them, the cable 40 mainly refers to cables such as Cable lines, radio frequency cables (such as coaxial radio frequency cables), and twisted pairs that need to be clamped on the PCB board 10. When the cable 40 is placed between the two shielding covers, the respective protruding parts on both sides are used to resist the cable. The two sides of the cable 40 are clamped and limited by the protruding parts, so as to clamp the cable 40 between the two shielding covers and limit the wiring path of the cable 40 on the PCB board 10.

[0019] The shielding cover is welded to the PCB board 10. According to the division of functional modules on the PCB board and the wiring requirements of the cable 40, a shielding cover can be provided on both sides of the line through which the cable 40 passes to cover each component of the same functional module. Then, the shape of the shielding cover is adapted to the distribution area of each component of the same functional module on the PCB board. The shielding cover is made of a material with good electromagnetic shielding performance, which is used to reduce electromagnetic interference between different functional modules.

[0020] Preferably, the raised parts on the opposite side surfaces of adjacent two shielding covers are arranged in a staggered and crossed manner. The distance between each raised part on one shielding cover only needs to be able to cooperate with each raised part on the other shielding cover to achieve mutual staggering. For example, on one shielding cover, the distance L1 between two adjacent raised parts is preferably 7 mm; on two shielding covers, the distance L2 between two mutually staggered raised parts is preferably 3 mm; the two distance values can be appropriately adjusted according to the length of the shielding cover, and the specific distance is not limited here. Since the cable has good mechanical properties, the staggered cooperation of the raised parts causes the cable to bend and deform, which will not affect the use effect of the cable.

[0021] As Figure 2 and Figure 3 shown, one side surface of the first shielding cover A is provided with several (such as 2) first raised parts A1, and one side surface of the second shielding cover B is provided with several (such as 3) second raised parts B1. When the two shielding covers are welded adjacent to each other, one side surface of the first shielding cover A faces one side surface of the second shielding cover B, and several first raised parts A1 and several second raised parts B1 are arranged in a staggered and crossed manner to form a structure that can tightly clamp the cable.

[0022] The shape and size of each raised part are designed according to the diameter of the cable and the wiring requirements. For example, each raised part can be a hemisphere, a cube, a wave body, and there is no limitation here. The raised part can be made of materials such as rubber, plastic, and metal, which can not only increase the friction to prevent the cable from moving, but also avoid wearing out the cable during long-term use.

[0023] The height of the raised part needs to have an interference fit with the cable, that is, the size should be smaller than the diameter size of the cable. For example, the diameter (i.e., wire diameter) of the cable is commonly The height of the raised part (i.e., the length protruding outwards) is less than 0.54 mm, such as it can be set to 0.3 mm; if it is The height of the raised part is less than 0.6 mm to achieve a tightly clamped assembly effect.

[0024] Preferably, the shielding structure further includes a plurality of clamping strips 50. In an area where it is not convenient to arrange adjacent shielding covers on the PCB board 10 (that is, there is a shielding cover on one side of the cable 40 and a shielding cover cannot be arranged on the other side), and there is a vacant position on the other side of the cable 40, the clamping strip 50 is welded on the side of the cable 40 with a vacant position (preferably on the vacant position at the bending of the cable 40), and the cable 40 is clamped between the clamping strip 50 and the shielding cover. The clamping strip 50 is strip-shaped, and the clamping strip 50 can also be deformed into an L shape with an upward bend, and the cable is blocked from falling out of the PCB board through the bent part.

[0025] If there are vacant positions on both sides of the cable and it is not adjacent to the shielding cover, the clamping strips 50 arranged in a staggered manner can be directly welded on both sides of the cable 40 for clamping. The clamping strip can also be set in a groove shape (n shape), buckled on the cable and welded on the PCB board.

[0026] In summary, the shielding structure for clamping the cable of the present invention clamps the cable by the protruding parts on the opposite sides of at least two shielding covers in a staggered and crossed manner, prevents it from loosening or shifting, restricts its wiring path, can effectively fix the cable, and can also flexibly adjust the wiring path of the cable as needed. There is no need to set wire clips, which increases the layout space on the main board and saves costs.

[0027] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all these improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. A shielding structure for clamping a cable, which is arranged on a PCB board, and is characterized in that It includes at least two adjacent shielding covers. A number of protruding parts are respectively provided on the opposite sides of the two shielding covers. The cable is clamped between the two shielding covers and clamped by each protruding part.

2. The shielding structure for clamping a cable according to claim 1, characterized in that, The two adjacent shielding covers and the protruding parts on the opposite two sides are arranged in a staggered and crossed manner.

3. The shielding structure for clamping a cable according to claim 2, wherein On the shielding cover, the distance between two adjacent protruding parts is 7 mm.

4. The shielding structure for clamping a cable according to claim 2, characterized in that, On the two adjacent shielding covers, the distance between two staggered protruding parts is 3 mm.

5. The shielding structure for clamping a cable according to claim 2, wherein, The height of the protruding part has an interference fit with the cable.

6. The shielding structure for clamping a cable according to claim 1, wherein, It further includes a number of card strips. The card strips are abutted against the side of the cable with a space and welded to the PCB board.

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