CN203659648U - Electric contact device with annular unit formed by contact finger - Google Patents
Electric contact device with annular unit formed by contact finger Download PDFInfo
- Publication number
- CN203659648U CN203659648U CN201190000856.9U CN201190000856U CN203659648U CN 203659648 U CN203659648 U CN 203659648U CN 201190000856 U CN201190000856 U CN 201190000856U CN 203659648 U CN203659648 U CN 203659648U
- Authority
- CN
- China
- Prior art keywords
- contact finger
- contact
- electical
- finger
- electical connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/46—Contacts characterised by the manner in which co-operating contacts engage by sliding self-aligning contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Clamps And Clips (AREA)
- Contacts (AREA)
Abstract
The utility model relates to an electric contact device which is applied in medium voltage to high voltage application. The electric contact device is provided with an annular unit which is formed by a plurality of contact fingers (2), and the contact fingers are arranged in a round shape and are in an axial direction. The contact fingers (2) are attached to a tail end of a contact arm (1), wherein the integrated contact fingers (2) are fixed on an outer side or an inner side (4) of a common support ring (5).
Description
Technical field
The utility model relates to a kind of for being depressed into the Electical connector of high-voltage applications, and this Electical connector has the annular unit being made up of multiple contact fingers of arranging according to circle and axially point to, and described multiple contact fingers attach to the end portion of contact arm.
Background technology
Medium voltage breaker is interruptive current by produce electric arc and extinguish arcs in vacuum tank.Current vacuum circuit-breaker easily has longer life expectancy than air or SF6 circuit breaker.Vacuum circuit-breaker has at least replaced air and SF6 circuit breaker in outdoor utility.But the utility model is depressed into the air circuit in the scope of high-voltage applications in relating to as a rule, particularly for the electric connector in air insulation Medium Voltage Switchgear.This switch cubicle needs such device or contact system: in the time that this device or contact system are inserted into respectively and remove, realize circuit and the bus terminal cable of switch cubicle and being connected and disconnection of terminal cable.Therefore, provide special Electical connector, this Electical connector has the multiple contact fingers that form the crown device of circle, and the crown device of this circle is used for the end portion of contact arm to be electrically connected to the bus terminal etc. of switch cubicle.
Document DE19648633A1 discloses a kind of Electical connector for high-voltage applications, and it comprises the endless means being made up of contact finger axially multiple and that point to abreast, and these contact fingers are separated from each other by intermediate gap.Contact finger is designed to the corresponding part of integral type sleeve part, the end mechanical connection of this sleeve part and contact arm and being electrically connected.
According to the known embodiment of the another kind of Electical connector, these contact fingers are designed to multiple integral type parts.In order to contact with contact arm is dynamo-electric, these integral type contact fingers by around spring coil be pressed on the annular surface of end portion of contact arm.These contact fingers by a support structure to avoid distortion, to guarantee contact finger parallel orientation relative to each other.But the quantity of contact finger is conventionally relatively low, this causes the electric current that quantity is relatively low and each contact need to be carried of electrical pickoff relatively high.In addition, the assembling of each contact finger on contact arm causes a large amount of hand labours.
Therefore, the purpose of this utility model is to provide a kind of Electical connector that uses circular endless means, and this circle endless means is made up of multiple contact fingers axial and parallel sensing, and these contact fingers are easily assembled and provided elasticity to electrically contact.
Utility model content
According to the utility model, multiple integral type contact fingers are fixed to one another on the outside or inner side of common support ring.Therefore, the utility model proposes use and be arranged in advance more, the thinner contact finger on special support ring instead of on contact arm.
The advantage of this special technical scheme is to have reduced Ohmic resistance and reduced contact resistance, because multiple contact finger forms preassembled annular unit.In addition, because the quantity of single contact is many, so be that tool is advantageous under certain conditions.Can after punching press, integral type contact finger be automatically connected to support ring.Special support ring preferably forms by bending metal sheet band, and this metal sheet band is distolateral gluing or weld together at it.
The fixing of multiple integral type contact fingers and support ring or metal band can complete in many ways, preferably by completing in contact finger gluing metal band.This also can by use be poured on a circle correctly the PUR on isolated contact finger complete.Contact finger can have the means that increase its adhesive surface, for example hole, groove, rivet or sand blasted surface.Another kind of mode---second embodiment---is to use support ring, the hole in this engagement connection device and contact finger or other the recess locking with engagement connection device.For the engagement connection device of contact finger preferably by support ring radially molded paired corresponding chuck form.
The metal band that is used to form the support ring of contact finger can be cut to required length and the bending of solderless wrapped connection contact arm.After being shaped, this device can fix by the one or more spring coils around contact finger along circumferential arrangement.At least one spring coil should be helical spring or similar device.
As the replacement scheme---this is the 3rd embodiment---of the distortion protection to contact finger, each contact finger can have one or more projections, and projection can be manufactured in punching course, and projection is controlled distance and the angle with adjacent contact finger.It is in addition, all right that use is through at least one loop wire of each contact finger, and it supports the distance piece for limiting distance between contact finger---in the 4th embodiment---.Should there is at least single line or fiber through hole and each contact finger, round-shaped to realize.Can directly after the punching course of contact finger, automatically produce this Electical connector.In this case, loop wire or fiber represent support ring.
According to the 5th embodiment of the present utility model, form multiple integral type contact fingers by the parallel slit that is bent into the metal sheet that forms annulus.This scheme has been avoided according to the manufacture in advance of multiple integral type contact fingers aforementioned the first embodiment, that need to be mounted to annular unit.
According to the 5th embodiment on the other hand, preferably by means of being threaded etc., annulus is attached to the end of contact lever by multiple holes.Itself preferably manufactures annulus in the following way: stamped metal sheet material, and to form parallel slit between contact finger and hole or other fasteners with contact arm.After punching press, these parts can be wound to form the annular element of Electical connector.
In order to increase contact, preferably, contact finger be arranged on contact finger end spring element around.The power that the width in the gap between width, the contact finger of contact finger and spring coil produce can be selected, to make: if contact finger does not engage with the respective terminal of switch cubicle etc., annular unit is compressed to certain diameter by spring coil.
According to the 6th embodiment of the present utility model, metal sheet is provided with the bottom of bending to form tank shape annular unit.This bottom is preferably provided with the centre bore for screwing element or other Connection Elements, and described screwing element or other Connection Elements are for being attached to tank shape annular unit the front side of contact arm.This special attached scheme provides stable mechanical connection and electrical connection reliably.Suggestion is set up otch in the region that will be bent and reel on edge of centre bore, so that BENDING PROCESS is easier.
Particularly, the utility model discloses a kind of for being pressed onto the Electical connector of high-voltage applications, described Electical connector has the annular unit being made up of multiple contact fingers of arranging according to circle and axially point to, described contact finger attaches to the end of contact arm, wherein, the contact finger of these integral types is fixed to one another on the outside or inner side of public support ring.
In one embodiment, each contact finger is by gluing or attach to described support ring.
In one embodiment, each contact finger comprise for increasing with the contact surface of described support ring or the device of contact structures.
In one embodiment, each contact finger attaches to described support ring by engagement connection device.
In one embodiment, for the described engagement connection device of described contact finger by radial mode on described support ring, for being bonded on the corresponding recess of described contact finger or the paired corresponding chuck in hole forms.
In one embodiment, described support ring forms by being bent into the metal band material that forms annulus.
In one embodiment, described contact finger attaches to described contact arm by least one spring coil of arranging around described contact finger along periphery.
In one embodiment, each contact finger comprises for limiting and at least one protuberance of the distance of adjacent contact finger.
In one embodiment, at least one loop wire extends through each contact finger, and every loop wire supports for limiting distance between adjacent contact finger and the distance piece of angle.
In one embodiment, each contact finger comprises for limiting and at least two protuberances of distance and the angle of adjacent contact finger.
According to another aspect of the present utility model, provide a kind of for being pressed onto the Electical connector of high-voltage applications, described Electical connector has the annular unit being made up of multiple contact fingers of arranging according to circle and axially point to, described contact finger attaches to the end of contact arm, wherein, the contact finger of these integral types is made up of the parallel gap that is bent into the metal sheet that forms annulus.
In one embodiment, described annulus attaches to the end of described contact arm by being threaded by multiple apertures.
In one embodiment, described contact finger be arranged on described contact finger end spring coil around.
In one embodiment, described metal sheet is provided with the bottom of bending, to form tank shape annular unit.
In one embodiment, in the bottom of described tank shape annular unit, be furnished with front side for tank shape annular unit being threaded onto to described contact arm, for the centre bore of screwing element.
In one embodiment, described centre bore is included in the multiple otch that form star recess on described bottom.
When considered in conjunction with the accompanying drawings, above-mentioned and other aspect of the present utility model will become apparent from detailed description of the present utility model.
Brief description of the drawings
Fig. 1 is the perspective cut-away of the first embodiment of Electical connector;
Fig. 2 is according to the perspective view of the pre-installation contact finger unit of the first embodiment;
Fig. 3 is according to the perspective view of the pre-installation contact finger unit of the second embodiment;
Fig. 4 is the perspective view of the 3rd embodiment of Electical connector;
Fig. 5 is the perspective view of the 4th embodiment of Electical connector;
Fig. 6 is the perspective view of the 5th embodiment of Electical connector;
Fig. 7 is for according to the perspective view of contact finger unit of manufacturing in advance of the Electical connector of Fig. 6;
Fig. 8 is the perspective view of the 6th embodiment of Electical connector; And
Fig. 9 is for according to the perspective view of the preferred embodiment of the tangent bend annular unit of the embodiment of Fig. 8.
Embodiment
Electical connector as shown in Figure 1 is mainly made up of contact arm 1, the hollow cylinder piece that contact arm 1 is designed to be made up of copper product.Contact arm 1 is mechanically attached to unshowned medium voltage breaker utmost point parts in its left side.Contact arm 1 is provided with circular endless means on its right side.This special endless means is made up of contact finger 2 axially multiple and that point to abreast.Each contact finger 2 is pressed in by spring coil 5 in the end portion of contact arm 1, and spring coil 5 is circumferentially around the contact finger 2 of these rounded layouts, to form such annular unit.
All contact fingers 2 are fixed to one another on the inner side 4 of public support ring 5.Each contact finger 2 is by attaching to spring coil 5 for gluing mode in this example.
As shown in Figure 2, annular unit is made up of the flat band of assembling in advance, and this flat band need to be bent to annular to realize the circular arrangement of multiple integral type contact fingers 2.During this fabrication stage, support ring 5 is Flat belts.
According to Fig. 3, these integral type contact fingers 2 attach to support ring by engagement connection device.Engagement connection device for contact finger 2 is made up of paired corresponding chuck 6a and the 6b that are directly molded on support ring 5.Described paired corresponding chuck 6a and 6b are bonded in the corresponding recess or hole 7 in each contact finger 2.
With reference to figure 4, each contact finger 2 comprises the multiple protuberances 8 for limiting the distance between adjacent contact finger 2, and protuberance 8 is manufactured in the punching course of contact finger 2, and distance and the angle of control and adjacent contact finger 2.
Figure 5 illustrates another embodiment of annular unit.Two loop wire 9a and 9b are through each contact finger 2 and support the distance piece 10 for limiting distance contact finger 2.
The embodiment of Fig. 6 shows the contact finger 2 that the parallel slit 11 of the metal sheet 12 of the form by bending to annulus 3 forms.Annulus 3 attaches to the end of contact lever 1 via being threaded by multiple holes 13.All contact fingers 2 of annular unit be all arranged on contact finger 2 end spring coil 14 around.
Fig. 7 shows the metal sheet that is cut out gap 12 before bending to annular.
According to Fig. 8, the metal sheet 12 of the bottom 15 by having bending forms the annular unit with multiple contact fingers 2 of arranging according to circle.Tank shape annular unit comprises the centre bore 16 for screwing element 17, for tank shape annular unit is attached on the front side of contact arm 1.
As shown in Figure 9, the bottom 15 of tank shape annular unit comprises multiple otch 18, and these otch 18 form the star recess in the periphery of centre bore 16, to obtain uniform bottom 15.Reference numerals list
1 contact arm
2 contact fingers
3 annulus
The inner side of 4 support rings
5 support rings
6 chucks
7 holes
8 protuberances
9 lines
10 distance pieces
11 gaps
12 metal sheets
13 holes
14 spring coils
15 bottoms
16 centre bores
17 center screwing elements
18 otch
Claims (16)
1. one kind for being pressed onto the Electical connector of high-voltage applications, described Electical connector has the annular unit being made up of multiple contact fingers (2) of arranging according to circle and axially point to, described contact finger attaches to the end of contact arm (1), it is characterized in that, the contact finger (2) of these integral types is fixed to one another on the outside or inner side (4) of public support ring (5).
2. Electical connector according to claim 1, is characterized in that, each contact finger (2) is by gluing or attach to described support ring (5).
3. Electical connector according to claim 2, is characterized in that, each contact finger (2) comprise for increasing with the contact surface of described support ring (5) or the device of contact structures.
4. Electical connector according to claim 1, is characterized in that, each contact finger (2) attaches to described support ring (5) by engagement connection device.
5. Electical connector according to claim 4, it is characterized in that, for the described engagement connection device of described contact finger (2) by radial mode on described support ring (5), form for being bonded on the corresponding recess of described contact finger (2) or the paired corresponding chuck (6a, 6b) of hole (7).
6. Electical connector according to claim 1, is characterized in that, described support ring (5) forms by being bent into the metal band material that forms annulus.
7. Electical connector according to claim 1, is characterized in that, described contact finger (2) attaches to described contact arm (1) by least one spring coil (3) of arranging around described contact finger (2) along periphery.
8. Electical connector according to claim 1, is characterized in that, each contact finger (2) comprises for limiting and at least one protuberance (8) of the distance of adjacent contact finger (2).
9. Electical connector according to claim 1, it is characterized in that, at least one loop wire (9a, 9b) extends through each contact finger (2), and every loop wire (9a, 9b) supports for limiting distance between adjacent contact finger (2) and the distance piece (10) of angle.
10. Electical connector according to claim 1, is characterized in that, each contact finger (2) comprises for limiting and at least two protuberances of distance and the angle of adjacent contact finger (2).
11. 1 kinds for being pressed onto the Electical connector of high-voltage applications, and described Electical connector has the annular unit being made up of multiple contact fingers (2) of arranging according to circle and axially point to, and described contact finger (2) attaches to the end of contact arm (1),
It is characterized in that, the contact finger (2) of these integral types is made up of the parallel gap (11) that is bent into the metal sheet (12) that forms annulus (3).
12. Electical connectors according to claim 11, is characterized in that, described annulus (3) attaches to the end of described contact arm (1) via being threaded by multiple holes (13).
13. Electical connectors according to claim 11, is characterized in that, described contact finger (2) be arranged on described contact finger (2) end spring coil (14) around.
14. Electical connectors according to claim 11, is characterized in that, described metal sheet (12) is provided with the bottom (15) of bending, to form tank shape annular unit.
15. Electical connectors according to claim 14, it is characterized in that, in the bottom (15) of described tank shape annular unit, be furnished with front side for tank shape annular unit being threaded onto to described contact arm (1), for the centre bore (16) of screwing element (17).
16. Electical connectors according to claim 15, is characterized in that, described centre bore (16) is included in the upper multiple otch (18) that form star recess in described bottom (15).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10010461.1A EP2434508B1 (en) | 2010-09-24 | 2010-09-24 | Electrical contact arrangement with annulus unit consisting of contact fingers |
| EP10010461.1 | 2010-09-24 | ||
| PCT/EP2011/004775 WO2012038091A1 (en) | 2010-09-24 | 2011-09-23 | Electrical contact arrangement with annulus unit consisting of contact fingers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659648U true CN203659648U (en) | 2014-06-18 |
Family
ID=43587098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201190000856.9U Expired - Fee Related CN203659648U (en) | 2010-09-24 | 2011-09-23 | Electric contact device with annular unit formed by contact finger |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2434508B1 (en) |
| CN (1) | CN203659648U (en) |
| WO (1) | WO2012038091A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293438A (en) * | 2016-04-12 | 2017-10-24 | 闫淼江 | The contact assembly and its negative contact of a kind of high voltage isolator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158009B (en) * | 2013-07-17 | 2016-12-28 | 国家电网公司 | A kind of conductive contact finger and use the patch panel of this conductive contact finger |
| EP2833385B1 (en) * | 2013-07-30 | 2017-05-03 | ABB Schweiz AG | Connecting device for a switchgear apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7442783U (en) * | 1974-12-21 | 1975-05-07 | Calor Emag Elektrizitaets Ag | |
| FR2492579A1 (en) * | 1980-10-22 | 1982-04-23 | Alsthom Atlantique | CONTACT FOR ELECTRICAL EQUIPMENT, SUCH AS CIRCUIT BREAKER |
| JPS61233915A (en) * | 1985-04-04 | 1986-10-18 | 三菱電機株式会社 | Circuit breaker |
| DE19648633A1 (en) | 1996-11-25 | 1998-05-28 | Asea Brown Boveri | Electrical switching device |
-
2010
- 2010-09-24 EP EP10010461.1A patent/EP2434508B1/en not_active Not-in-force
-
2011
- 2011-09-23 CN CN201190000856.9U patent/CN203659648U/en not_active Expired - Fee Related
- 2011-09-23 WO PCT/EP2011/004775 patent/WO2012038091A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293438A (en) * | 2016-04-12 | 2017-10-24 | 闫淼江 | The contact assembly and its negative contact of a kind of high voltage isolator |
| CN107293438B (en) * | 2016-04-12 | 2019-09-06 | 闫淼江 | A kind of contact assembly and its negative contact of high voltage isolator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012038091A1 (en) | 2012-03-29 |
| EP2434508B1 (en) | 2016-03-30 |
| EP2434508A1 (en) | 2012-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180525 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB Transmit OY |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20200923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |