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A ground connection component

A technology for connecting components and components, which is applied in the direction of connecting components, connections, thin plate connections, etc., can solve the problems of poor connection performance, poor conductivity, poor conductivity, etc., and achieve high connection reliability, prevent reverse loosening, Effect of improving electrical conductivity

Active Publication Date: 2020-11-24
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned existing ground connection components all have the following defects: 1. The overall conductivity of this type of structure also depends on the conductivity of the nut and the second part after welding. If the nut and the second part are welded or poorly welded, then The overall conductivity will be worse; 2. The scraping groove on the head of the bolt has a strong ability to scrape the welding slag and dirt in the nut, and has a weak ability to scrape the anti-rust coating attached to the thread surface, which will lead to poor overall conductivity. Poor; 3. The existence of scraping grooves on the head causes the strength of the bolted connection to be poorer than that of ordinary bolts, and the connection performance is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as Figure 1-4 As shown, the first part 4 and the second part 5 of the ground connection assembly are used for overlapping, the first part 4 and the second part 5 are coated with a coating, and the second part 5 is fixed with a lock nut 3 by welding. The ground connection assembly includes a bolt 1 and a conductive intermediate capable of conducting electricity. In this embodiment, the conductive intermediate is a conductive sleeve 2, and both the bolt 1 and the conductive sleeve 2 are made of conductive metal materials.

[0031] Such as image 3 As shown, specifically, the bolt 1 includes a screw part 1a and a head 1b, the head 1b is arranged on the end face of one end of the screw part 1a, and the end face of the head 1b close to the screw part 1a has a scraping part-1b1 . The screw part 1a has a gear part 1a1, and the inner wall of the conductive sleeve 2 is correspondingly provided with tooth grooves 2b. The conductive sleeve 2 is sleeved on the screw part 1a...

Embodiment 2

[0036] The structural features of this embodiment are basically the same as those of Embodiment 1, the difference is that the inner hole of the conductive sleeve 2 is polygonal, and the screw part 1a has a protruding and polygonal plug-in part correspondingly, and the plug-in part can be It is plugged into the inner hole of the conductive sleeve 2 and leans against the hole wall of the inner hole. Through the cooperation of the polygonal inner hole and the corresponding polygonal plug-in part, the circumference between the conductive sleeve 2 and the bolt 1 can be realized. direction, so as to realize the synchronous rotation of the bolt 1 and the conductive sleeve 2.

[0037] The socket part protrudes radially from the surface of the screw part 1a, and an annular concave shoulder 1c is formed between the socket part and the head 1b of the bolt 1, so that there is a certain accommodation space between the socket part and the head 1b of the bolt 1, Scraping part-1b 1 In the pro...

Embodiment 3

[0039] The structural features of this embodiment are basically the same as those of Embodiment 1, the difference is that: there are several protruding connecting protrusions on the screw part 1a, and several slots are correspondingly opened on the inner wall of the conductive sleeve 2, and the conductive sleeve 2 Sleeved on the screw part 1a and the connecting protrusion can be embedded in the corresponding slot, so as to realize the circumferential fixation between the conductive sleeve 2 and the bolt 1, so that the bolt 1 and the conductive sleeve 2 can rotate synchronously. The screw part 1a is in close contact with the inner wall of the conductive sleeve 2 and the connecting protrusion and the inner wall of the slot, which can ensure a larger contact area between the conductive sleeve 2 and the bolt 1 and ensure better electrical conductivity.

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Abstract

The invention provides a ground connection assembly, which belongs to the technical field of machinery. It solves the problem of poor electrical conductivity of the existing ground connection components. The ground connection assembly includes a bolt and a conductive sleeve capable of conducting electricity. The bolt includes a screw part and a head, and the head has a scraping part 1 for scraping off the coating. A conductive intermediate body, the conductive intermediate body can be connected to the bolt in a torsion-resistant manner, and a scraping part 2 for scraping off the coating is protrudingly provided on the conductive intermediate body. When this ground connection assembly is used, relying on the pressure when the bolt is fastened, the scraping part 1 on the bolt head and the scraping part 2 on the conductive intermediate can simultaneously scrape the coatings on part 1 and part 2 respectively, The scraping effect is good, which can effectively ensure the direct and full contact between the bolt and the base metal of part one, and the conductive sleeve and the base metal of part two, which improves the electrical conductivity after lapping.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a ground connection assembly. Background technique [0002] At present, the electronic and electrical system on the car adopts a single-wire system, and the negative electrode is usually grounded, that is, the negative electrode of the battery is connected to the vehicle body, and the negative electrode of the electronic appliance is connected to the vehicle body to form a circuit, which can save the cost of the wire and minimize the wiring. possibility of failure. The existing connection components for grounding all include grounding bolts and nuts. When in use, the grounding bolts pass through the first part and the second part and then locked and fixed by the nuts to achieve lap joints, or the nuts and part two are welded and fixed. The lap joint is realized by locking and fixing the ground bolt through part one and the nut. After the existing parts 1 and 2 are painted, the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B35/04F16B35/06F16B5/02F16B39/282H01R4/30H01R4/2408
CPCH01R4/2408H01R4/302H01R4/304F16B5/02F16B35/041F16B35/06F16B39/282H01R2201/26F16B2200/93
Inventor 孙晓哲孙冠哲
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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