CN105048170B

CN105048170B - Inside and outside staged large area short stroke power terminals

Info

Publication number: CN105048170B
Application number: CN201510528430.5A
Authority: CN
Inventors: 李金仁; 陈明德
Original assignee: CHONGQING MINSHENG TRANSFORMER Co Ltd
Current assignee: CHONGQING MINSHENG TRANSFORMER Co Ltd
Priority date: 2015-08-25
Filing date: 2015-08-25
Publication date: 2017-08-08
Anticipated expiration: 2035-08-25
Also published as: CN105048170A

Abstract

The invention discloses a kind of inside and outside staged large area short stroke power terminals, including male and female, it is characterized in that the male is provided with a conducting ring, conducting ring is connected with by transition body connects outer end, conducting ring inner edge connects the conductive outer barrel of male of the revolution of oriented side extension, male conduction termination fold inward of the outer barrel away from conducting ring extends to form the conductive inner cylinder of a male to conducting ring direction, female is provided with the fixed edge of an annular, the fixed conductive outer barrel of female that oriented side extension is connected along inner edge of annular, female conduction outer barrel forms the conductive inner cylinder of female away from the fixed receipts turnover along along one end of annular, female conduction inner cylinder is provided with the surface of revolution that can be connected with the conductive inner cylinder step inner face interference at different levels of male, connection area is big, electrical connection is more reliable, resistance is smaller, male, female revolving body also saves material relative to solid.

Description

Inside and outside staged large area short stroke power terminals

Technical field

The present invention relates to a kind of power industry equipment transformer accessory, more particularly to a kind of inside and outside staged large area is short Stroke power terminals.

Background technology

China is vast in territory, and power delivery networks gather, and transformer is required in the end of network and is turned to carry out voltage Change, existing transformer is most of to be all mounted on overhead sun deck except cabinet type, is operated in outdoor changeable complexity Under environment, the connection reliability of transformer and the superior and the subordinate's power network is particularly important, different from the tie point in transmission line of electricity, Ke Yitong Cross increase overlap joint contact area to improve reliability, the contact area of the terminal connection of existing transformer is all smaller, all leans on Bolt pressure realizes that Flat-end is connected, and termination is influenceed by its planar smoothness, still has partial gap, in salt fog, acid The natural environment effect of the wind weathering such as rain is descended to cause loose contact, and contact resistance is for a transformer operating efficiency Be also very crucial, can ask that no steady operation is also vital to it, thus this problem this still await technology solution Certainly.

The content of the invention

In order to solve the above problems, the invention provides a kind of inside and outside staged large area short stroke power terminals.

The technical solution adopted by the present invention is：A kind of inside and outside staged large area short stroke power terminals, including public affairs Head and female, it is characterised in that the male is provided with a conducting ring, and conducting ring is connected with by transition body connects outer end, it is conductive Ring inner edge connects the conductive outer barrel of male of the revolution of oriented side extension, and male conduction outer barrel is by conductive ring away from conducting ring side To at least provided with two-stage step, steps at different levels on male conduction outer barrel are to away from conducting ring termination direction undergauge, male step by step Termination fold inward of the conductive outer barrel away from conducting ring extends to form the conductive inner cylinder of a male to conducting ring direction, and male is conductive interior Cylinder from turnover to conducting ring direction at least provided with two-stage step, steps at different levels on male conduction inner cylinder to conducting ring direction by Received in level undergauge, male conduction inner cylinder end and form a male ring-shaped platform；Female is provided with the fixed edge of an annular, the fixed edge of annular Inner edge connects the conductive outer barrel of female of oriented side extension, and the remote annular of female conduction outer barrel is fixed to receive turnover formation along along one end Received in the conductive inner cylinder of female, female conduction inner cylinder end and form a female ring-shaped platform, female conduction outer barrel is provided with can be with male The surface of revolution of interference connection outside conductive outer barrel steps at different levels, female conduction inner cylinder is provided with can be with the conductive inner cylinder of male steps at different levels The surface of revolution of inner face interference connection；Female is provided with a termination is provided with boss and boss is pressed in being conductively connected on female ring-shaped platform Provided with a tabletting identical with outside at turnover at bar, female conduction inner cylinder turnover, tabletting is by coordinating on conducting connecting bar Nut top pressure at the conductive inner cylinder turnover of female, boss is provided with a screw, and male ring-shaped platform is provided with bowl-type conductive pad Piece, a conducting bolt being connected with screw is provided with through bowl-type conductive spacer and male ring-shaped platform mesopore.

Further, it is provided with one end on connecting cylinder, connecting cylinder on the outside of the conductive outer barrel of the female and is provided with annular edge, annular edge Provided with the depression for falling into the fixed edge of annular, it is furnished with stationary annular fixation in depression along gland, gland is provided with O-ring seal, O-ring seal is contacted with conducting ring, and connecting cylinder is connected with a lock-nut, and gap is provided between female conduction outer barrel and connecting cylinder, The flexible insulating cement of embedding in gap.

Further, the revolving body is red copper, 1 to 1.5 millimeter of wall thickness.

Further, the step is three to quadravalence.

Further, the step is provided with 0.05 to 0.2 taper.

Tight conducting bolt is screwed when the present invention is used, male and female are using inside and outside two layers of annular stair-stepping multistage mistake It is full of face and even realizes connection, the stroke of conducting bolt driving insertion is shorter installs that connection is quick, and the wall where each step mating surface exists It is thin-wall construction, interference that the wall that process can be with SeIf-alignment matching surface and where correcting some deformation, mating surface is squeezed into interference Two side can produce certain crimp during cooperation, be easier interference fit, and connection area is big, its each cascade after coincideing Junction does not have gap, and it is firm to connect, and sealing is tight, and rainwater can not invade matching surface, particularly inner stages matching surface, be conductively connected Bar is connected by raised, conductive spacer and female, and conducting connecting bar is connected by conducting bolt, bowl-type conductive spacer with male, Electrical connection is more reliable, and resistance is smaller, and male, female revolving body also save material relative to solid.

Brief description of the drawings

Fig. 1 is overall schematic of the embodiment of the present invention.

Fig. 2 is the overall schematic cross-sectional view of the embodiment of the present invention.

Fig. 3 is that the embodiment of the present invention decomposes schematic cross-sectional view.

Reference:1 male；2 females；3 conducting rings；4 transition bodies；5 connect outer end；6 males conduction outer barrel；7 males Conductive inner cylinder；8 male ring-shaped platforms；The fixed edge of 9 annulars；10 females conduction outer barrel；11 females conduction inner cylinder；12 female annular flats Platform；13 boss；14 conducting connecting bars；15 tablettings；16 nuts；17 screws；18 bowl-type conductive spacers；19 conducting bolts；20 connections Cylinder；21 annular edges；22 glands；23 O-ring seals；24 lock-nuts；25 flexible insulation glue.

Embodiment

The embodiment of the present invention as shown in Figure 1, 2, 3, the inside and outside staged large area short stroke power terminals, including public affairs First 1 and female 2, male is provided with a conducting ring 3, and conducting ring is connected with by transition body 4 connects outer end 5, for connecting dispatch from foreign news agency Net, conducting ring inner edge connects the conductive outer barrel 6 of male of the revolution of oriented side extension, and male conduction outer barrel is remote by conductive ring Conducting ring direction is at least provided with two-stage step, and the present embodiment is level Four, and the steps at different levels on male conduction outer barrel are to away from conductive Ring termination direction undergauge step by step, male conduction termination fold inward of the outer barrel away from conducting ring extends to form one to conducting ring direction Male conduction inner cylinder 7, male conduction inner cylinder from turnover to conducting ring direction at least provided with two-stage step, the present embodiment is four Steps at different levels on level, male conduction inner cylinder are received in male conduction inner cylinder end and form a public affairs to conducting ring direction undergauge step by step Head annular platform 8；Female is fixed along 9 provided with an annular, and the fixed female for connecting oriented side extension along inner edge of annular is conductive outer Cylinder 10, female conduction outer barrel receives turnover along along one end and forms the conductive inner cylinder 11 of female, female conduction inner cylinder end away from annular is fixed Received in holding and form a female ring-shaped platform 12, female conduction outer barrel, which is provided with, to be connected with interference outside the conductive outer barrel steps at different levels of male The surface of revolution connect, female conduction inner cylinder is provided with the surface of revolution that can be connected with the conductive inner cylinder step inner face interference at different levels of male, female It is 1 to 1.5 millimeter of the wall thickness for red copper with male, interference fit is suitable for good ductility；Female is provided with a termination The conducting connecting bar 14 on female ring-shaped platform is pressed in provided with boss 13 and boss, for connecting inside transformer winding, female Provided with a tabletting 15 identical with outside at turnover at conductive inner cylinder turnover, tabletting is by coordinating the nut on conducting connecting bar 16 top pressures are at the conductive inner cylinder turnover of female, and boss is provided with a screw 17, and male ring-shaped platform is provided with bowl-type conductive spacer 18, can be fastened on male ring-shaped platform, improve intensity, through bowl-type conductive spacer and male ring-shaped platform mesopore provided with one with The conducting bolt 19 of screw connection；Connecting cylinder 20, for being connected with transformer case, connecting cylinder are provided with the outside of female conduction outer barrel Upper one end is provided with annular along 21, and annular falls into the depression on the fixed edge of annular, depression along being provided with and fixes edge equipped with stationary annular Gland 22, be connected through a screw thread and fix stationary annular, gland be provided with O-ring seal 23, install connection after ring Shape sealing ring contacts with conducting ring and plays sealing function, prevents rain erosion, and connecting cylinder is connected with a lock-nut 24, will connected Cylinder is fixed on transformer case, and the flexible insulating cement 25 of embedding in gap, gap is provided between female conduction outer barrel and connecting cylinder, The conductive outer barrel of female is connected as a single entity with connecting cylinder, can both be insulated, it is small when can receive female conduction outer barrel interference again Deformation.

The present invention easily can be connected when using with transformer shell insulation, screw tight conducting bolt, male and female Connection is even realized using the stair-stepping multistage interference face of inside and outside two layers annular, the stroke of conducting bolt driving insertion is shorter to be installed Connection is quick, and the wall where each step mating surface squeezes into process in interference with SeIf-alignment matching surface and to correct some deformation, Wall where mating surface is thin-wall construction, and two side can produce certain crimp during interference fit, make interference fit Easily, connection area is big, and its joint face at different levels does not have gap after coincideing, and it is firm to connect, and sealing is tight, and rainwater can not invade identical Face, particularly inner stages matching surface, conducting connecting bar are connected by raised, conductive spacer and female, and conducting connecting bar passes through Conducting bolt, bowl-type conductive spacer are connected with male, be electrically connected it is more reliable, resistance is smaller, male, female revolving body relative to Solid also saves material.

During implementation, step three to quadravalence is optimal；Step can be provided with 0.05 to 0.2 taper, and row is driven during Interference contact Cheng Geng little, it is easier to connect.

It is only present pre-ferred embodiments in summary, all equivalent modification done according to the application and prior art additions are equal It is considered as the technology of the present invention category.

Claims

1. a kind of inside and outside staged large area short stroke power terminals, including male and female, it is characterised in that the public affairs Head is provided with a conducting ring, and conducting ring is connected with by transition body connects outer end, and conducting ring inner edge connects oriented side extension The conductive outer barrel of the male of revolution, male conduction outer barrel is by conductive ring away from conducting ring direction at least provided with two-stage step, male Steps at different levels on conductive outer barrel are to away from conducting ring termination direction undergauge, termination of the male conduction outer barrel away from conducting ring step by step Fold inward extends to form the conductive inner cylinder of a male to conducting ring direction, male conduction inner cylinder from turnover to conducting ring direction extremely Steps at different levels on two-stage step, male conduction inner cylinder are provided with less to conducting ring direction undergauge step by step, male conduction inner cylinder end Interior receive forms a male ring-shaped platform；Female is provided with the fixed edge of an annular, and annular is fixed to connect oriented side extension along inner edge The conductive outer barrel of female, female conduction outer barrel forms the conductive inner cylinder of female away from the fixed receipts turnover along along one end of annular, and female is conductive Received in inner cylinder end and form a female ring-shaped platform, female conduction outer barrel is provided with can be with mistake outside the conductive outer barrel steps at different levels of male It is full of the surface of revolution of connection, female conduction inner cylinder is provided with the surface of revolution that can be connected with the conductive inner cylinder step inner face interference at different levels of male； Female is pressed in provided with a termination provided with boss and boss at the conducting connecting bar on female ring-shaped platform, female conduction inner cylinder turnover Provided with a tabletting identical with outside at turnover, tabletting is by coordinating the nut top pressure on conducting connecting bar in female is conductive At cylinder turnover, boss is provided with a screw, and male ring-shaped platform is provided with bowl-type conductive spacer, through bowl-type conductive spacer and public affairs Head annular platform mesopore is provided with a conducting bolt being connected with screw.

2. inside and outside staged large area short stroke power terminals according to claim 1, it is characterised in that the mother One end on connecting cylinder, connecting cylinder is provided with the outside of the conductive outer barrel of head and is provided with annular edge, annular is along provided with falling into the fixed edge of annular Equipped with stationary annular fixation along gland in depression, depression, gland is provided with O-ring seal, and O-ring seal connects with conducting ring Touch, connecting cylinder is connected with a lock-nut, and the flexible insulation of embedding in gap, gap is provided between female conduction outer barrel and connecting cylinder Glue.

3. inside and outside staged large area short stroke power terminals according to claim 1 or 2, it is characterised in that described Step is three to quadravalence.

4. inside and outside staged large area short stroke power terminals according to claim 1 or 2, it is characterised in that described Step is provided with 0.05 to 0.2 taper.