CN103996908A - Electrical terminal ground structure and installation method - Google Patents
Electrical terminal ground structure and installation method Download PDFInfo
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- CN103996908A CN103996908A CN201410216517.4A CN201410216517A CN103996908A CN 103996908 A CN103996908 A CN 103996908A CN 201410216517 A CN201410216517 A CN 201410216517A CN 103996908 A CN103996908 A CN 103996908A
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- bolt
- sleeve
- electric terminal
- sphenocephaly
- ground
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- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
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.
Description
(1) technical field: the present invention relates to a kind of structure of electric terminal ground connection, the electric terminal that is mainly used in the fields such as high speed motor car, railroad track, building is fastenedly connected.Belong to line connector (H01R).
(2) background technology:
At present, the electric terminal ground connection of high speed motor car, railroad track, building etc. mainly adopts the mode of welding, the problems such as be welded to connect and solder technology required high, welding process easily occurs that quality is unstable, and after welding the unstable and demolition and maintenance of electric conductivity are inconvenient.Meanwhile, in some structure, adopt carbon fibre composite for reducing weight ground wire, the connected mode that cannot use welding that is connected of electric terminal and composite material.
(3) summary of the invention:
Electric terminal ground structure provided by the invention and installation method, its object solves exactly existing electric terminal and adopts welding ground connection, the following problem of existence: 1. conductivity is unstable; 2. demolition and maintenance inconvenience; 3. the difficult problem being connected between electric terminal and composite material.
Its technical scheme is as follows:
Electric terminal ground structure, is characterized in that
1) establish bolt 1 and be made up of the sphenocephaly of front end, the polished rod section of middle transition and the thread segment of rear end, bolt material is stainless steel.If the collar 2 has sleeve, the flange of rear end and the groove of flange front end face of front end, collar material is aluminium alloy or copper alloy.Jacket casing is outside sphenocephaly, and the endoporus of sleeve is the lozenges that gradient is identical with sphenocephaly.2) sleeve periphery 2b is placed in ground plate 6 installing holes; Radially tight fit of sphenocephaly, sleeve and installing hole.3) electric terminal 5 is enclosed within outside bolt by perforate; At the exterior stop nut engaging with it 3 of thread segment and pad, electric terminal is axially contained between flange and pad, and the stop nut axially screwing makes electric terminal front end face and cover ring flange rear end face close contact.
The each several part size of above-mentioned electric terminal ground structure, can be the numerical value of table 1 sequence number 1-8; Wherein comprise the scheme of following bi-material: 1) ground plate adopts steel plate or corrosion resistant plate, and collar material is copper alloy; 2) ground plate and collar material are aluminium alloy; In table 1, seven place's bracket inside dimensions are 2) scheme size, this seven places bracket outside dimension is 1) scheme size; Except this seven place, all the other one, every place sizes that are not marked with bracket are the size that two schemes are identical.In table 1, sequence number 1 and 3 is extended type bolt.
Table 1 unit millimeter
The installation method of above-mentioned electric terminal ground structure, is characterized in that comprising the steps:
1) Passivation Treatment is carried out on bolt surface; Material is that the collar of copper alloy carries out zinc-plated processing; Material is that the collar of aluminium alloy carries out Nickel Plating Treatment.2) collar is enclosed within outside bolt, sphenocephaly contacts with sleeve inner hole surface, and ground wire bolt W is pre-installed.3) sleeve 2.1 of the ground wire bolt W being pre-installed is inserted in floor installing hole 6.1, the thread segment of the ground wire bolt being pre-installed 1.3 rear ends are screwed in the screwed hole of riveting machine mandrel 7.1; Start riveting machine, move after pulling bolt and move after mandrel, riveting machine rifle head 7.2 withstands cover ring flange rear end face 2a; Under ramp effect between sphenocephaly and sleeve, make radially tight fit of sphenocephaly, sleeve and installing hole.4) rivet completely, mandrel reversion, moves after riveting machine, exits.5) electric terminal 5 is inserted in outside bolt by perforate, then, then enters pad at bolt coat, screw on and screw stop nut 3, until the screw-down torque of stop nut reaches setting.
Beneficial effect of the present invention:
1) due to bolt design sphenocephaly, in riveted joint, extruded sleeve ring inner surface makes sleeve part size become large, thereby and is radially fastenedly connected between ground plate installing hole.Bolt thread section designs for screwing in stop nut, realizes electric terminal and the collar are axially fastened to connection.Cover ring flange rear end face 2b and the size of design can ensure fully to contact with electric terminal front end face.The groove binding of the collar: the one, when collar upsetting moulding, be conducive to the formation of flange face; The 2nd, in installing, can avoid the burr on installing hole limit on the impact of installation quality.Design the size of such electric terminal ground structure and option table 1, make all round properties such as pulling-out force, driving torque, leakage, resistance value, protecting against shock, anti-vibration of ground structure all reach requirement (subitem explanation below).Not only avoid weld defect and solved the difficult problem that is connected between electric terminal and composite material, and this structure can ensure the ground connection performances such as protecting against shock under high speed motor car operation, anti-vibration, anti-leak, anti-slip power, meet the performance requirement of ground structure under complex working condition.
2) through test, the pulling-out force that ground wire bolt is axially deviate from from ground plate reaches the specified value in table 2.
Table 2 ground wire bolt pulling-out force unit is thousand Ns (pausing)
3) through test, the driving torque that ground wire bolt is rotated in ground plate reaches the specified value in table 3.
Table 3 ground wire bolt driving torque unit is ox (pausing) rice
4), through test, electric terminal ground structure continues 2 hours in the air pressure of 0.6MPa, does not produce and leaks.
5) resistance between test electric terminal and ground plate reaches the specified value in table 4.
Resistance value unit between table 4 electric terminal and ground plate is micro-ohm (nurse)
6) through test, electric terminal ground structure is 300g at shock test acceleration, and be 3ms action time, and waveform is half-sine wave, and ground wire bolt is answered non-loosening, obscission.
7) through test, electric terminal ground structure is 10～500Hz in vibration frequency, and vibration displacement is 0.75mm, and ground wire bolt is answered non-loosening, obscission.
(4) brief description of the drawings:
The ground wire bolt W front view that Fig. 1 is pre-installed.
Fig. 2 electric terminal ground structure positive view.
Fig. 3 installation steps 2) ground wire bolt prepackage diagram.
Fig. 4 installation steps 3) the ground wire bolt being pre-installed is riveted on to ground plate installing hole diagram.
Fig. 5 installation steps 4) rivet riveting machine and exited diagram.
Fig. 6 installation steps 5) mounting electrical terminal, packing ring, stop nut, install diagram.
(5) embodiment:
The present embodiment electric terminal ground structure, it is composed as follows:
1) see Fig. 1, establish the bolt 1 being made up of sphenocephaly 1.1, the transition polished rod section 1.2 of centre and the thread segment 1.3 of rear end of front end, material is stainless steel.If the collar 2 has sleeve 2.1, the flange 2.2 of rear end and the groove 2.3 of flange front end face of front end, material is aluminium alloy or copper alloy.Jacket casing is outside sphenocephaly, and the endoporus of sleeve is the lozenges 2.4 that gradient is identical with sphenocephaly.
2) see Fig. 2, sleeve periphery 2b is placed in ground plate 6 installing holes 6.1; Sphenocephaly 1.1, sleeve 2.1 and radially tight fit of installing hole 6.1.
3) see Fig. 2, electric terminal 5 is enclosed within outside bolt 1 by perforate 5.1, at the exterior stop nut engaging with it 3 of thread segment 1.3 and pad 4, and electric terminal is axially contained between flange 2.2 and pad 4, the stop nut 3 axially screwing makes electric terminal 5 front end faces and cover ring flange rear end face 2a close contact.
In table 1, list the optimized dimensions design load (mark is shown in shown in Fig. 1, Fig. 2) of above-mentioned electric terminal ground structure, comprise: in 8 kinds of bolt diameters, the ground plate 6 thickness range b6 of correspondence, cover ring flange 2.2 diameter D, cover ring sleeve 2.1 diameter d, bolt rear end are to overlapping the long L1 of ring flange rear end face, collar flange face width L2, the long L3 of cover ring sleeve, cover ring flange front end face to sphenocephaly front end face length L4, bolt rear end to earth terminal front end face length L5, ground plate rear end face to sphenocephaly front end face length L6.Concrete numerical value is in table 1 sequence number 1-8, here no longer repeat specification.
The installation method of the above-mentioned electric terminal ground structure of the present embodiment, step is as follows:
1) Passivation Treatment is carried out on bolt surface; Material is that the collar of copper alloy carries out zinc-plated processing; Material is that the collar of aluminium alloy carries out Nickel Plating Treatment.
2) see Fig. 1, see Fig. 3, the collar 2 is enclosed within outside bolt 1, sphenocephaly 1.1 contacts with sleeve inner hole surface 2.4, and ground wire bolt W is pre-installed.
3) see Fig. 4, the sleeve 2.1 of the ground wire bolt being pre-installed is inserted in floor installing hole 6.1, the bolt section 1.3 of the ground wire bolt being pre-installed is screwed in the screwed hole of riveting machine 7 mandrels 7.1; Start riveting machine 7, move after pulling bolt and move after mandrel, riveting machine rifle head 7.2 withstands cover ring flange rear end face 2a; Under ramp effect between sphenocephaly and sleeve, make sphenocephaly 1.1, sleeve 2.1 and radially tight fit of installing hole 6.1.
4) see Fig. 5, rivet completely, mandrel 7.1 reverses, and after riveting machine 7, moves, and exits;
5) see Fig. 6, Fig. 2, is inserted in electric terminal 5 outside bolt by perforate 5.1, then, then enters pad 4 at bolt coat, screws on and screw stop nut 3, until the screw-down torque of stop nut reaches setting.
See Fig. 1, ground wire bolt W pre-installed position is according to L4 Numerical Control.See Fig. 2, the relative electric terminal 5 of ground wire bolt W and ground plate 6 are pressed L5 and L6 Numerical Control in table 1 at axial location.
See Fig. 2, this electric terminal ground structure of employing, in the time that electric terminal has earth current to flow through, just pass through cover ring flange rear end face 2a from electric terminal 5, through cover ring sleeve 2.1 outer surface 2b, installing hole 6.1 inner surfaces, electric current flows to ground plate 6, as shown by the arrows in Figure 2 again.Due to riveted joint and wedge effect, sleeve 2.1 peripheries and radially close contact of installing hole, because nut shaft is to tightening, make electric terminal and the axial close contact of cover ring flange rear end face, therefore the conductive loop resistance forming is little, and because collar material is copper alloy or aluminium alloy, ensure the low resistance performance (in table 4) in conducting process.
Claims (3)
1. electric terminal ground structure, is characterized in that
1) establish bolt (1) and be made up of sphenocephaly (1.1), the polished rod section (1.2) of middle transition and the thread segment (1.3) of rear end of front end, bolt material is stainless steel; If the collar (2) has sleeve (2.1), the flange (2.2) of rear end and the groove (2.3) of flange front end face of front end, collar material is aluminium alloy or copper alloy; Jacket casing is outside sphenocephaly, and the endoporus of sleeve is the lozenges that gradient is identical with sphenocephaly (2.4);
2) sleeve periphery (2b) is placed in ground plate (6) installing hole 6.1; Radially tight fit of sphenocephaly, sleeve and installing hole;
3) electric terminal (5) is enclosed within outside bolt by perforate (5.1); At the exterior stop nut engaging with it of thread segment (3) and pad (4), electric terminal is axially contained between flange and pad, and the stop nut axially screwing makes electric terminal front end face and cover ring flange rear end face (2a) close contact.
2. by electric terminal ground structure described in claim 1, it is characterized in that: the each several part size of described electric terminal ground structure is the numerical value of table 1 sequence number 1-8; Wherein comprise the scheme of following bi-material: 1) ground plate material is steel plate or corrosion resistant plate, collar material is copper alloy; 2) ground plate and collar material are aluminium alloy; In table 1, seven place's bracket inside dimensions are 2) scheme size, this seven places bracket outside dimension is 1) scheme size, except this seven place, all the other one, every place sizes that are not marked with bracket are the size that two schemes are identical;
Table 1 unit millimeter
3. by the installation method of electric terminal ground structure described in claim 1, it is characterized in that comprising the steps:
1) Passivation Treatment is carried out on bolt surface; Material is that the collar of copper alloy carries out zinc-plated processing; Material is that the collar of aluminium alloy carries out Nickel Plating Treatment;
2) collar is enclosed within outside bolt, sphenocephaly contacts with sleeve inner hole surface, and ground wire bolt W is pre-installed:
3) sleeve of the ground wire bolt W being pre-installed is inserted in the installing hole of floor, the thread segment rear end of the ground wire bolt being pre-installed is screwed in the screwed hole of riveting machine (7) mandrel (7.1); Start riveting machine, move after pulling bolt and move after mandrel, riveting machine rifle head (7.2) withstands cover ring flange rear end face (2a); Under ramp effect between sphenocephaly and sleeve, make radially tight fit of sphenocephaly, sleeve and installing hole;
4) rivet completely, mandrel reversion, moves after riveting machine, exits;
5) electric terminal is inserted in outside bolt by perforate, then, then enters pad at bolt coat, screw on and screw stop nut, until the screw-down torque of stop nut reaches setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216517.4A CN103996908A (en) | 2014-05-21 | 2014-05-21 | Electrical terminal ground structure and installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410216517.4A CN103996908A (en) | 2014-05-21 | 2014-05-21 | Electrical terminal ground structure and installation method |
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| CN103996908A true CN103996908A (en) | 2014-08-20 |
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| CN201410216517.4A Pending CN103996908A (en) | 2014-05-21 | 2014-05-21 | Electrical terminal ground structure and installation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736550A (en) * | 2016-03-30 | 2016-07-06 | 孙颖 | Double-looseness-preventing fixing bolt for railway contact net dropper assembly |
| DE102016112782A1 (en) * | 2016-07-12 | 2018-01-18 | Fairchild Fasteners Europe - Camloc Gmbh | Use and method for connecting an electrical connection to a wall |
| CN110534996A (en) * | 2019-09-04 | 2019-12-03 | 浙江纽联科技有限公司 | A kind of high-tension connector manufacturing method |
| WO2020015867A1 (en) * | 2018-07-18 | 2020-01-23 | Fairchild Fasteners Europe - Camloc Gmbh | Insert for connecting an electric connection to a wall, disassembly tool, and aligning tool for an insert, and method for repairing an insert |
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| US1748532A (en) * | 1926-05-06 | 1930-02-25 | William B Wardrop | Terminal for rail bonds |
| JPH053403U (en) * | 1991-06-28 | 1993-01-19 | 大和ハウス工業株式会社 | Beam-column connection structure of column head |
| EP0880199A1 (en) * | 1997-05-23 | 1998-11-25 | DUBUIS Société Anonyme | Insert for the connection of an electrical terminal on a thin wall and method for assembly and disassembly |
| US6200080B1 (en) * | 1998-12-12 | 2001-03-13 | Universal Drilling & Cutting Equipment Limited | Sleeve for a fastener for an electrical terminal for a railway rail |
| CN102728768A (en) * | 2012-06-04 | 2012-10-17 | 南车眉山车辆有限公司 | Method for fastening member with high strength and low riveting force and 10.9-level short-tail pulling rivet |
| CN202883617U (en) * | 2012-08-28 | 2013-04-17 | 南车眉山车辆有限公司 | Minisize rotary pulling rivet |
| CN204030003U (en) * | 2014-05-21 | 2014-12-17 | 眉山南车紧固件科技有限公司 | Electric terminal ground structure |
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2014
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US1748532A (en) * | 1926-05-06 | 1930-02-25 | William B Wardrop | Terminal for rail bonds |
| JPH053403U (en) * | 1991-06-28 | 1993-01-19 | 大和ハウス工業株式会社 | Beam-column connection structure of column head |
| EP0880199A1 (en) * | 1997-05-23 | 1998-11-25 | DUBUIS Société Anonyme | Insert for the connection of an electrical terminal on a thin wall and method for assembly and disassembly |
| US6200080B1 (en) * | 1998-12-12 | 2001-03-13 | Universal Drilling & Cutting Equipment Limited | Sleeve for a fastener for an electrical terminal for a railway rail |
| CN102728768A (en) * | 2012-06-04 | 2012-10-17 | 南车眉山车辆有限公司 | Method for fastening member with high strength and low riveting force and 10.9-level short-tail pulling rivet |
| CN202883617U (en) * | 2012-08-28 | 2013-04-17 | 南车眉山车辆有限公司 | Minisize rotary pulling rivet |
| CN204030003U (en) * | 2014-05-21 | 2014-12-17 | 眉山南车紧固件科技有限公司 | Electric terminal ground structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736550A (en) * | 2016-03-30 | 2016-07-06 | 孙颖 | Double-looseness-preventing fixing bolt for railway contact net dropper assembly |
| CN105736550B (en) * | 2016-03-30 | 2017-09-26 | 孙颖 | Dual locking railway contact line dropper fixing bolt |
| DE102016112782A1 (en) * | 2016-07-12 | 2018-01-18 | Fairchild Fasteners Europe - Camloc Gmbh | Use and method for connecting an electrical connection to a wall |
| DE102016112782B4 (en) | 2016-07-12 | 2018-05-30 | Fairchild Fasteners Europe - Camloc Gmbh | Insert for connecting an electrical connection to a wall |
| US11085481B2 (en) | 2016-07-12 | 2021-08-10 | Fairchild Fasteners Europe - Camloc Gmbh | Insert and method for connecting an electrical connection to a wall |
| WO2020015867A1 (en) * | 2018-07-18 | 2020-01-23 | Fairchild Fasteners Europe - Camloc Gmbh | Insert for connecting an electric connection to a wall, disassembly tool, and aligning tool for an insert, and method for repairing an insert |
| DE102018117366A1 (en) * | 2018-07-18 | 2020-01-23 | Fairchild Fasteners Europe - Camloc Gmbh | Insert for connecting an electrical connection to a wall, dismantling tool and alignment tool for an insert, and method for repairing an insert |
| DE102018117366B4 (en) | 2018-07-18 | 2024-03-28 | Fairchild Fasteners Europe - Camloc Gmbh | Insert for connecting an electrical connection to a wall, disassembly tool and alignment tool for an insert, and method for repairing an insert |
| CN110534996A (en) * | 2019-09-04 | 2019-12-03 | 浙江纽联科技有限公司 | A kind of high-tension connector manufacturing method |
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| CB02 | Change of applicant information |
Address after: 620032, No. two, 821, Science Park, Dongpo District, Sichuan, Meishan Applicant after: Meishan Zhongche fastener Technology Co. Ltd. Address before: 620032, No. two, 821, Science Park, Dongpo District, Sichuan, Meishan Applicant before: Meishan CSR Fastener Science&technology Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140820 |