Grounding device for braid shielded cable

Abstract

The invention discloses a grounding device for a braid shielded cable, which comprises a receiving part and a grounding part, wherein the receiving part comprises a first receiving groove used for accommodating a braid shielded cable; the grounding part is rotatably connected with the receiving part, and comprises a grounding component, a second receiving groove and a puncture unit which is arranged on the second receiving groove and is electrically connected with the grounding component; the puncture unit is provided with at least a blade, and the blade is vertical to the axis of the second receiving groove. The grounding device provided by the invention not only can effectively puncture the insulating sheath of the cable and keep good contact with an outer conductor, but also can prevent the outer conductor from being punctured or damaged, thus realizing well grounding of the braid shielded cable.

Description

technical field [0001] The present invention relates to a cable grounding device, more particularly, to a grounding device for a braided shielded cable. Background technique [0002] Due to the shielding effect of the metal braid, braided shielded cables can isolate the internal cable core from external signals and block electromagnetic interference energy radiation. Therefore, they have been widely used in communications, control systems, electrical equipment, automatic devices and other fields. Such as figure 1 As shown, the braided shielded cable is mainly composed of an insulating sheath 1, a metal braiding layer 2, an insulating layer 3 and a plurality of cable cores 5 wrapped with an insulating layer 4. During use, the braided shielded cable needs to be grounded, specifically, the metal braided layer 2 made of copper is grounded, so as to timely leak electromagnetic interference energy to the ground. Such as figure 2 As shown, when performing the grounding operatio...

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Problems solved by technology

[0004] However, the device is only suitable for insulated cables that do not have a metallic shielding braid

Because the braided shielded cable is softer than the insulated cable, and its outer conductor is a metal braided mesh, it is easily deformed when it is squeezed by force. The force applied to the braided shielded cable will easily cause the metal braided mesh and the inner cable core to be deformed by force, and the deformation will vary with the point of entry of the braided shielded cable. Therefore, after the blade cuts in, it will maintain good electrical contact with the metal braided mesh. Difficult to achieve the purpose of good grounding

Therefore, the device is not suitable for grounding metal shielding braided mesh

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