Shielding cable special for output end of EMI power supply filter

Abstract

The utility model provides a special shielding cable for an output end of an EMI (Electro-Magnetic Interference) power supply filter, which comprises an input shielding end connecting part, and a shielding cable main body is arranged on the input shielding end connecting part; the right end of the input shielding end connecting part is in threaded connection with an output shielding end connecting part, a filter circuit is arranged in the output shielding end connecting part, and the output shielding end connecting part is also provided with a shielding cable main body; the shielding cable main body is respectively and electrically connected with the filter circuit, and the shielding cable is characterized in that the outer wall of the input shielding end connecting part is fixedly connected with an anti-loose limiting assembly, and the anti-loose limiting assembly is also fixedly connected with the outer wall of the output shielding end connecting part. According to the utility model, the arrangement of the first annular fixing block, the limiting groove, the second annular fixing block and the bending limiting sheet is beneficial for realizing the effect of fixing the filter shell in an anti-loose manner, so that the problem that a shielding cable cannot work normally due to the separation of the shell is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of shielded cables, and in particular relates to a special shielded cable for an output end of an EMI power filter. Background Art

[0002] The shielded cable dedicated to the output end of the EMI power filter is a transmission line that uses a metal mesh braided layer to wrap the signal line, such as a shielded cable filter with publication number CN204498077U, the shielded cable filter includes a shielding cavity and a first filter circuit and a second filter circuit arranged inside the shielding cavity, the shielding cavity is formed by fastening an input shielding end connecting component and an output shielding end connecting component. There are still some problems in the actual use of the shielded cable, such as: the filter housing on the shielded cable is connected by threads, so after long-term use, the filter housing will become loose, which may lead to the problem of housing separation, and then may affect the normal operation of the shielded cable. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a shielded cable dedicated to the output end of an EMI power filter, which can achieve the effect of preventing the filter housing from loosening, thereby avoiding the problem of the shielded cable not being able to work normally due to separation of the housing.

[0004] The technical solution is as follows: a shielded cable dedicated to the output end of an EMI power filter comprises an input shielding end connecting component, on which a shielded cable body is mounted; the right end of the input shielding end connecting component is threadedly connected to an output shielding end connecting component, and a filtering circuit is arranged inside the output shielding end connecting component, wherein a shielded cable body is also mounted on the output shielding end connecting component; the shielded cable body is electrically connected to the filtering circuit respectively, and is characterized in that an anti-loosening limit assembly is fixedly connected to the outer wall of the input shielding end connecting component, and the anti-loosening limit assembly is also fixedly connected to the outer wall of the output shielding end connecting component.

[0005] Preferably, the anti-loosening and limiting assembly includes a first annular fixing block, and limiting grooves are respectively provided on the four inner parts of the first annular fixing block; a second annular fixing block is arranged on the right side of the first annular fixing block, and the four outer parts of the second annular fixing block are respectively integrated with bending limiting plates, wherein the bending limiting plates are respectively located on the inner sides of the limiting grooves.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] In the utility model, the provision of the first annular fixing block, the limiting groove, the second annular fixing block and the bent limiting piece is conducive to achieving the effect of preventing the filter housing from loosening, thereby avoiding the problem of the shielded cable not being able to work normally due to separation of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 It is a schematic diagram of the local structure of the utility model after being disassembled.

[0010] Figure 3 It is a structural schematic diagram of the anti-loosening and limiting component of the utility model.

[0011] In the figure:

[0012] 1. Input shielding end connecting component; 2. Shielded cable body; 3. Output shielding end connecting component; 4. Filter circuit; 5. Anti-loosening limit assembly; 51. First annular fixing block; 52. Limiting groove; 53. Second annular fixing block; 54. Bending limit piece. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a shielded cable dedicated to the output end of the EMI power filter includes an input shielding end connecting component 1, on which a shielded cable body 2 is installed; the right end of the input shielding end connecting component 1 is threadedly connected to an output shielding end connecting component 3, and a filtering circuit 4 is arranged inside the output shielding end connecting component 3, wherein a shielded cable body 2 is also installed on the output shielding end connecting component 3; the shielded cable body 2 is electrically connected to the filtering circuit 4 respectively.

[0014] The special shielded cable at the output end of the EMI power filter also includes an anti-loosening limit component 5, and the anti-loosening limit component 5 is fixedly connected to the outer wall of the input shielding end connecting component 1; the anti-loosening limit component 5 is also fixedly connected to the outer wall of the output shielding end connecting component 3, which is conducive to achieving the effect of anti-loosening and fixing the filter housing, thereby avoiding the problem of the shielded cable not being able to work normally due to separation of the housing.

[0015] In this embodiment, combined with the Figure 3 As shown, the anti-loosening and limiting assembly 5 includes a first annular fixing block 51, and limiting grooves 52 are respectively provided on the inner four parts of the first annular fixing block 51; a second annular fixing block 53 is arranged on the right side of the first annular fixing block 51, and the outer wall of the second annular fixing block 53 is respectively integrated with bending limiting plates 54, wherein the bending limiting plates 54 are respectively located on the inner sides of the limiting grooves 52.

[0016] In this embodiment, specifically, the first annular fixing block 51 is fixedly connected to the right side of the outer wall of the input shielding terminal connecting component 1 .

[0017] In this embodiment, specifically, the second annular fixing block 53 is fixedly connected to the left side of the outer wall of the output shielding terminal connecting component 3 .

[0018] In this embodiment, specifically, the first annular fixing block 51 and the second annular fixing block 53 are respectively made of annular stainless steel blocks.

[0019] In this embodiment, specifically, the limiting groove 52 is a rectangular groove.

[0020] In the present embodiment, specifically, the bending limit piece 54 is made of a rectangular stainless steel sheet, and the operator can bend the bending limit piece 54 .

[0021] In the present embodiment, after the input shielding end connecting component 1 and the output shielding end connecting component 3 in the shielded cable are threadedly connected, the limit groove 52 will be arranged opposite to the bending limit plate 54, and then the operator can bend the bending limit plate 54 to make the bending limit plate 54 enter the limit groove 52. At this time, the input shielding end connecting component 1 and the output shielding end connecting component 3 cannot rotate relative to each other, thereby effectively avoiding the problem of the input shielding end connecting component 1 and the output shielding end connecting component 3 separating by themselves, achieving the effect of preventing the filter housing from loosening and fixing, and avoiding the problem of the shielded cable not being able to work normally due to separation of the housing.

[0022] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. EMI power filter output dedicated shielded cable, characterized by: The shielded cable dedicated to the output end of the EMI power filter comprises an input shielded end connecting component (1), on which a shielded cable body (2) is mounted; The right end of the input shielding end connecting component (1) is threadedly connected to the output shielding end connecting component (3), and a filter circuit (4) is arranged inside the output shielding end connecting component (3), wherein a shielded cable body (2) is also installed on the output shielding end connecting component (3); the shielded cable body (2) is electrically connected to the filter circuit (4), and is characterized in that an anti-loosening limit assembly (5) is fixedly connected to the outer wall of the input shielding end connecting component (1), and the anti-loosening limit assembly (5) is also fixedly connected to the outer wall of the output shielding end connecting component (3).

2. The shielded cable dedicated to the output end of the EMI power filter according to claim 1, characterized in that: The anti-loosening and limiting assembly (5) comprises a first annular fixing block (51), and limiting grooves (52) are respectively provided at the four inner parts of the first annular fixing block (51); a second annular fixing block (53) is arranged on the right side of the first annular fixing block (51), and the four outer parts of the second annular fixing block (53) are respectively connected with bending limiting pieces (54) in an integrated manner, wherein the bending limiting pieces (54) are respectively located at the inner sides of the limiting grooves (52).

3. The shielded cable dedicated to the output end of the EMI power filter as claimed in claim 2, characterized in that: The first annular fixing block (51) is fixedly connected to the right side of the outer wall of the input shielding terminal connecting component (1).

4. The shielded cable dedicated to the output end of the EMI power filter as claimed in claim 3, characterized in that: The second annular fixing block (53) is fixedly connected to the left side of the outer wall of the output shielding end connecting component (3).

5. The shielded cable dedicated to the output end of the EMI power filter as claimed in claim 4, characterized in that: The first annular fixing block (51) and the second annular fixing block (53) are respectively made of annular stainless steel blocks.

6. The shielded cable dedicated to the output end of the EMI power filter as claimed in claim 5, characterized in that: The limiting groove (52) is a rectangular groove.

7. The shielded cable dedicated to the output end of the EMI power filter as claimed in claim 6, characterized in that: The bending limit piece (54) is made of a rectangular stainless steel sheet.

Images