Electrical terminal ground structure and installation method

An electrical terminal and grounding structure technology, applied in the field of electrical terminal grounding structure, can solve the problems of unstable conductivity, inconvenient disassembly and maintenance, and difficult connection between electrical terminals and composite materials, and achieves grounding performance against pull-off force and meets performance requirements. effect of demand
CN103996908AInactive Publication Date: 2014-08-20MEISHAN CRRC FASTENING SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
MEISHAN CRRC FASTENING SYST CO LTD
Publication Date
2014-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an electrical terminal ground structure and an installation method. The electrical terminal ground structure is characterized in that a bolt is provided with a wedge-shaped head and a threaded section, a shrink-ring is provided with a wedge-shaped face sleeve and a flange, and the wedge-shaped head is sleeved with the sleeve; the external round face of the sleeve is in tight fit with an installation hole of a ground plate in the radial direction; a lock nut and a spacer are installed outside the threaded section; an electrical terminal is axially installed between the flange and the spacer, and an axially screwed nut enables the electrical terminal to make tight contact with the flange of the shrink-ring. The bolt is made of stainless steel, and the shrink-ring is made of aluminum alloy or copper alloy. The installation method comprises the steps that after the surfaces of the bolt and the sleeve are processed, the wedge-shaped head is sleeved with the sleeve, the sleeve is inserted into the installation hole, the bolt is screwed in a riveting device for riveting, and then the bolt is sleeved with the electrical terminal and the nut until axial compression is achieved. The test shows that by the adoption of the structure and size optimization, the properties such as pulling-out force, rotational torque, leakage, a resistance value, impact resistance and vibration resistance can meet the requirements. The existing welding defects are overcome, the connection problem caused when an existing ground plate is made of a composite material is solved, and the electrical terminal ground structure is applied to high-speed trains, railway tracks, buildings and the like and meets the property requirement of ground structures under the complex conditions.
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Description

[0001] (1) Technical field: The present invention relates to a structure for grounding electrical terminals, which is mainly used for fastening and connection of electrical terminals in the fields of high-speed trains, railway tracks, buildings and the like. It is a line connector (H01R). (two) background technology:

[0002] At present, the electrical terminals of high-speed motor vehicles, railway tracks, buildings, etc. are mainly grounded by welding. Welding connections have high requirements for welding technology, and the welding process is prone to unstable quality, unstable electrical conductivity after welding, and inconvenient disassembly and maintenance. . At the same time, in some structures, carbon fiber composite materials are used to reduce the weight of the ground wire, and the connection between the electrical terminal and the composite material cannot be connected by welding. (3) Contents of the invention:

[0003] The electrical terminal grounding structu...

Claims

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