Anti-interference magnetic ring capable of fixing wire harness

Abstract

The utility model belongs to the technical field of anti-interference magnetic rings, and particularly relates to an anti-interference magnetic ring capable of fixing a wire harness, which comprises a shell and a magnetic core, an accommodating groove is arranged in the shell, the annular magnetic core is arranged in the accommodating groove, a wire harness through hole is axially arranged in the shell, the wire harness through hole penetrates through an inner ring of the magnetic core, and the wire harness is arranged in the accommodating groove. A wire clamping assembly is arranged at the hole opening of the wire harness through hole, and a plurality of wire clamping grooves distributed in the circumferential direction are formed in the wire clamping assembly. The wire clamping assemblies made of rubber are arranged at the two end openings of the wire harness through hole, the wire harnesses are clamped and inserted into the wire clamping grooves in the two end openings of the wire harness through hole through the elastic wire clamping grooves in the wire clamping assemblies, even multiple wire harnesses can be fixed one by one, and under the elastic clamping and friction effects of the wire clamping assemblies, the wire harnesses can be clamped and inserted into the wire clamping grooves in the two end openings of the wire harness through hole. The magnetic core can be kept at the fixed position of the wire harness, so that the magnetic core can stably play a role after being installed.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-interference magnetic rings, and particularly relates to an anti-interference magnetic ring capable of fixing a wire harness. Background Art

[0002] An anti-interference magnetic ring is a commonly used anti-interference component in electronic circuits, which has a good inhibitory effect on high-frequency noise and is generally made of ferrite materials. The magnetic ring has different impedance characteristics at different frequencies. Generally, the impedance is very small at low frequencies, and when the signal frequency increases, the impedance of the magnetic ring increases sharply. Under the action of the magnetic ring, the normal and useful signals can pass through well, and the high-frequency interference signals can be well inhibited, and the cost is low.

[0003] A filtering magnetic core disclosed in Patent CN221406933U includes a plastic shell and a magnetic core ring disposed inside the plastic shell. The plastic shell includes two sub-shells. One side of the two sub-shells is hinged, and the other side of the two sub-shells is connected by a snap-lock mechanism. The magnetic core ring includes two semi-circular magnetic core blocks. One semi-circular magnetic core block is disposed inside one of the sub-shells, and the other semi-circular magnetic core block is disposed inside the other sub-shell. A directional structure is provided between the semi-circular magnetic core block and the sub-shell, and the directional structure enables the two semi-circular magnetic core blocks to form a circular ring structure.

[0004] In the above solution, the magnetic core ring is tightly fixed by the snap-lock mechanism, and the alignment and fitting of the two magnetic blocks are solved, which can more effectively improve the anti-interference performance of the device and improve the working efficiency. Although anti-abrasion protrusions are provided at the semi-circular grooves to protect the surface of the wire harness from damage, the opening of the semi-circular grooves is much larger than the diameter of the wire harness, and the entire filtering magnetic core will slide along the cable. During the sliding, not only the shielding effect will be affected, but also the entire filtering magnetic core may be knocked during the sliding process, resulting in the loosening of the snap. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above problems and provide an anti-interference magnetic ring capable of fixing a wire harness that can solve the above technical problems.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An anti-interference magnetic ring capable of fixing a wire harness includes a shell and a magnetic core. A receiving groove is formed in the shell, and the annular magnetic core is disposed in the receiving groove. A wire harness through-hole is axially formed in the shell, and the wire harness through-hole passes through the inner ring of the magnetic core. A wire clamping assembly is disposed at the orifice of the wire harness through-hole, and a plurality of circumferentially distributed wire clamping grooves are formed on the wire clamping assembly.

[0008] In the anti-interference magnetic ring for fixing a wire harness, the wire clamping assembly is composed of a plurality of wire clamping columns, and the wire clamping columns are uniformly distributed along the inner wall of the wire harness through hole. A wire clamping groove is formed between adjacent wire clamping columns.

[0009] In the anti-interference magnetic ring for fixing a wire harness, the wire clamping column includes a separating column and a separating contact. The separating columns are uniformly arranged on the inner wall of the wire harness through hole, and the separating contacts are arranged on the separating columns and face the center of the wire harness through hole.

[0010] In the anti-interference magnetic ring for fixing a wire harness, a gap is left between adjacent separating columns, and a concave arc surface is formed on the column body to form the wire clamping groove.

[0011] In the anti-interference magnetic ring for fixing a wire harness, adjacent separating contacts abut against each other near the center of the wire harness through hole, and each separating contact encloses a single wire harness support path.

[0012] In the anti-interference magnetic ring for fixing a wire harness, a wire winding groove is formed on the outer arc surface of the housing along the axial direction, and an anti-detachment protrusion is arranged on the edge of the opening of the wire winding groove.

[0013] In the anti-interference magnetic ring for fixing a wire harness, a wire winding hook is arranged on the wire winding groove, and a reinforcing protrusion corresponding to the wire winding hook is arranged at the bottom of the wire winding groove.

[0014] In the anti-interference magnetic ring for fixing a wire harness, the housing includes two spliced semi-cylinders, and each semi-cylinder contains half of the magnetic core and the wire clamping assembly.

[0015] In the anti-interference magnetic ring for fixing a wire harness, one side of the two semi-cylinders is connected by a hinge, and the other side is provided with a buckle for switchable connection.

[0016] In the anti-interference magnetic ring for fixing a wire harness, an annular limiting protrusion is arranged in the accommodating groove, and the limiting protrusion is arranged along the edge of the wire harness through hole.

[0017] The advantages of the present utility model are as follows:

[0018] At the two end orifice positions of the wire harness through hole, a wire clamping assembly made of rubber is arranged. By using the elastic wire clamping grooves on the wire clamping assembly, the wire harness is clamped and inserted into the wire clamping grooves at the two end orifices of the hole. Even for multiple wire harnesses, they can be fixed one by one. Under the elastic clamping and frictional action of the wire clamping assembly, the magnetic core can be kept at the fixed position of the wire harness, so that the magnetic core can stably play its role after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the shell of the present utility model.

[0021] Figure 3 This is a schematic diagram of the wire winding structure of the present utility model.

[0022] Figure 4 This is a schematic diagram of the wire clamping post structure of the present utility model.

[0023] In the illustration, there are shell 1, accommodation groove 11, wire harness through hole 12, wire winding groove 13, anti - detachment protrusion 14, wire winding hook 15, reinforcement protrusion 16, limit protrusion 17, magnetic core 2, wire clamping assembly 3, wire clamping groove 31, wire clamping post 32, partition post 33, and partition contact 34. Specific embodiments

[0024] The following are specific embodiments of the utility model and in combination with the attached drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0025] As Figures 1 - 4 shown, an anti - interference magnetic ring for fixing a wire harness includes a shell 1 and a magnetic core 2. An accommodation groove 11 is formed inside the shell 1, and an annular magnetic core 2 is arranged in the accommodation groove 11. A wire harness through hole 12 is axially formed in the shell 1, and the wire harness through hole 12 passes through the inner ring of the magnetic core 2. It is characterized in that a wire clamping assembly 3 is arranged at the orifice of the wire harness through hole 12, and a plurality of circumferentially distributed wire clamping grooves 31 are arranged on the wire clamping assembly 3.

[0026] That is, at the wire hole of the traditional snap - on magnetic ring, a wire clamping assembly 3 made of rubber is provided. By using the elastic wire clamping grooves 31 on the wire clamping assembly 3, the wire harness is clamped and inserted into the wire clamping grooves 31 at both ends of the hole. Under the elastic clamping and frictional action of the wire clamping assembly 3, the magnetic core can maintain its fixed position on the wire harness, enabling the magnetic core to play a stable role after installation.

[0027] Among them, considering that users may repeatedly wind the wire harness around the magnetic ring to increase the shielding effect, the multiple wire clamping grooves 31 on the wire clamping assembly 3 can also fix multiple wire harnesses passing through the wire harness through hole 12 respectively on different wire clamping grooves 31, so that multiple wire harnesses passing through together will not cause wire chaos.

[0028] In this embodiment, the wire clamping assembly 3 is composed of a plurality of wire clamping posts 32. The wire clamping posts 32 are circumferentially distributed along the inner wall of the wire harness through hole 12, and wire clamping grooves 31 are formed between adjacent wire clamping posts 32.

[0029] The wire clamping posts 32 are distributed on the inner wall at the orifice of the wire harness through hole 12. One end stands upright on the inner wall and the other end points to the center of the wire harness through hole 12. There is a certain gap between the roots of each wire clamping post 32. Since the tips extend towards the center, the distance between them decreases, and a wire clamping groove for the wire harness is naturally formed.

[0030] The wire clamping posts 32 are made of rubber. The wire harness can be clamped into the roots with a larger spacing from the tips of the wire clamping posts 32 by extrusion, realizing the operation of independently fixing each wire harness.

[0031] In this embodiment, the wire clamping post 32 includes a separating post 33 and a separating contact 34. The separating posts 33 are evenly arranged on the inner wall of the wire harness through hole 12, and the separating contacts 34 are arranged on the separating posts 33 and face the center of the wire harness through hole 12.

[0032] Preferably, there is a gap between adjacent separating posts 33, and a concave arc surface is formed on the column body to form a wire clamping groove 31.

[0033] The area between adjacent separating posts 33 is the wire harness clamping position. The main body of the separating post 33 is set as a concave arc surface, so that the arc surface can better fit the shape of the wire harness, and the clamping pressure can be more evenly distributed on the wire harness to avoid scratching the surface of the wire harness.

[0034] Preferably, adjacent separating contacts 34 abut against each other near the center of the wire harness through hole 12, and each separating contact 34 encloses a single wire harness support path.

[0035] When only one wire harness is selected to pass through the wire harness through hole 12, the wire harness does not need to be clamped into the wire clamping groove 31. Especially when using a relatively thick single wire harness and the wire clamping groove 31 cannot accommodate the thick wire harness, each separating contact 34 can support the wire harness and keep it at the axial position of the wire harness through hole 12. And there is friction between the separating contact 34 and the wire harness, which can also prevent the magnetic ring from sliding on the wire harness.

[0036] In this embodiment, there is a wire winding groove 13 opened along the axial direction on the outer arc surface of the housing 1, and an anti - detachment protrusion 14 is arranged on the edge of the wire winding groove 13.

[0037] In order to enhance the shielding effect of the magnetic ring, the same wire harness is often wound several times through the wire harness through hole 12, and the wound wire harness will be left outside the magnetic ring housing 1. Therefore, a wire winding groove 13 is opened on the housing 1 to allow the external wire harness to neatly wind according to the groove shape.

[0038] An anti - detachment protrusion 14 is arranged at the same time on the edge of the wire winding groove 13, forming an arc - shaped retaining edge at the edge of the wire winding groove 13 to concentrate the wire harness in the wire winding groove 13 and prevent the wire harness from slipping out of the groove and making the winding loose.

[0039] Preferably, a wire winding hook 15 is provided on the wire winding groove 13, and a reinforcing protrusion 16 corresponding to the wire winding hook 15 is provided at the bottom of the wire winding groove 13.

[0040] Adding a wire winding hook 15 to the wire winding groove 13 can shield the wire harness wound in the wire winding groove 13 with the wire winding hook 15, leaving only a small opening for the wire harness to pass through, which can protect the outer wire harness to the greatest extent and prevent the wire harness from being scratched or hooked with other structures.

[0041] A small part of the reinforcing protrusion 16 is provided at the bottom of the wire winding groove 13, so that the wire harness at the reinforcing protrusion 16 can be pressed upward against the wire winding hook 15 to further strengthen the stability of the external wire winding.

[0042] In this embodiment, the housing 1 includes two spliced semi-cylinders, and the semi-cylinders contain half of the magnetic core 2 and the wire clamping assembly 3.

[0043] Dividing the housing 1, the magnetic core 2, and the wire clamping assembly 3 into two halves can avoid the limitation of threading a complete magnetic ring. Especially on an already connected electrical circuit, only need to clamp the magnetic ring at the position where the circuit wants to be installed without performing troublesome power-off operations.

[0044] Preferably, one side of the two semi-cylinders is connected by a hinge, and a buckle is provided on the other side for switchable connection.

[0045] In this embodiment, an annular limiting protrusion 17 is provided in the accommodation groove 11, and the limiting protrusion 17 is arranged along the edge of the wire harness through hole 12.

[0046] The limiting protrusions 17 at the two wire harness through holes 12 in the semi-cylinder form a semi-circular ring-shaped chute. Similarly, the semi-circular ring-shaped magnetic core 2 can be inserted from one end of the chute. When the two semi-cylinders are spliced, the two halves of the magnetic core 2 can be accurately butted together without additional adjustment.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An anti-interference magnetic ring for fixing a wire harness, comprising a housing (1) and a magnetic core (2). A receiving groove (11) is formed in the housing (1). The annular magnetic core (2) is arranged in the receiving groove (11). A wire harness through hole (12) is axially formed in the housing (1), and the wire harness through hole (12) passes through the inner ring of the magnetic core (2). It is characterized in that, A wire clamping assembly (3) is provided at the orifice of the wire harness through hole (12), and a plurality of circumferentially distributed wire clamping grooves (31) are provided on the wire clamping assembly (3).

2. The anti-interference magnetic ring for fixing a wire harness according to claim 1, characterized in that, The wire clamping assembly (3) is composed of a plurality of wire clamping columns (32), the wire clamping columns (32) are evenly distributed along the inner wall of the wire harness through hole (12), and the wire clamping grooves (31) are formed between adjacent wire clamping columns (32).

3. The anti-interference magnetic ring for fixing a wire harness according to claim 2, characterized in that, The wire clamping column (32) includes a separating column (33) and a separating contact (34), the separating column (33) is evenly arranged on the inner wall of the wire harness through hole (12), and the separating contact (34) is arranged on the separating column (33) and faces the center of the circle of the wire harness through hole (12).

4. The anti-interference magnetic ring for fixing a wire harness according to claim 3, characterized in that A gap is left between adjacent separating columns (33), and an inwardly concave arc surface is formed on the column body to form the wire clamping groove (31).

5. The anti-interference magnetic ring for fixing a wire harness according to claim 3, characterized in that, Adjacent separating contacts (34) are abutted against each other near the center of the circle of the wire harness through hole (12), and each separating contact (34) encloses a single wire harness support path.

6. The anti-interference magnetic ring for fixing a wire harness according to claim 1, wherein A wire winding groove (13) is provided on the outer arc surface of the housing (1) along the axial direction, and an anti - detachment protrusion (14) is provided at the edge of the notch of the wire winding groove (13).

7. The anti-interference magnetic ring for fixing a wire harness according to claim 6, wherein A wire winding hook (15) is provided on the wire winding groove (13), and a reinforcing protrusion (16) corresponding to the wire winding hook (15) is provided at the bottom of the wire winding groove (13).

8. The anti-interference magnetic ring for fixing a wire harness according to claim 1, characterized in that, The housing (1) includes two spliced semi - cylinders, and each semi - cylinder contains half of the magnetic core (2) and the wire clamping assembly (3).

9. The anti-interference magnetic ring for fixing a wire harness according to claim 8, wherein, One side of the two semi - cylinders is connected by a hinge, and a lock is provided on the other side for switchable connection.

10. The anti-interference magnetic ring for fixing a wire harness according to claim 1, characterized in that, An annular limiting protrusion (17) is provided in the accommodating groove (11), and the limiting protrusion (17) is arranged along the edge of the wire harness through hole (12).

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