CN201219070Y - Connection device for moving and fixed contacts - Google Patents
Connection device for moving and fixed contacts Download PDFInfo
- Publication number
- CN201219070Y CN201219070Y CNU2008201029331U CN200820102933U CN201219070Y CN 201219070 Y CN201219070 Y CN 201219070Y CN U2008201029331 U CNU2008201029331 U CN U2008201029331U CN 200820102933 U CN200820102933 U CN 200820102933U CN 201219070 Y CN201219070 Y CN 201219070Y
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- contact
- box
- dynamic
- static
- moving
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Abstract
The utility relates to a dynamic and static contact connection device, especially a connection assembly of large current medium-voltage switchgear. The utility comprises contact box, a dynamic contact and a static contact; one end of contact box is open to accommodate dynamic contact; the static contact is fixedly mounted on bottom of contact box; the dynamic contact can detachablely fastens static contact to form electric connection; the dynamic contact is composed of two contact arms and two groups of duckbill contact; the static contact is composed of two group T shaped static contact; two electrodes of the static contact separately passes corresponding via hole at bottom of contact box to extend in the contact box; the static contact is positioned outside of contact box for fixedly mounting heat radiator; two groups of duckbill contact of dynamic contact separately and detachablely fastens corresponding electrode of static contact. The utility solves problem of big size and poor contact performance of plum contact operating under large current.
Description
Technical field
The utility model relates to the coupling assembling in a kind of switchgear, particularly relates to the coupling assembling in a kind of big electric current medium voltage switchgear equipment.
Background technology
The version shown in Figure 1 of the many employings of dynamic/static contact jockey in the 12kV medium voltage switchgear equipment in the past, it comprises contact arm 1, contact box 2, Mume flower contact 3, fixed contact 4 and copper bar 5.One end of contact box 2 opens wide, with the moving contact of admitting contact arm 1 and Mume flower contact 3 to form; An opening is left in the bottom of contact box 2, stretches in the contact box 2 for copper bar 5.Fixed contact 4 is installed on the copper bar 5 at contact box 2 internal fixation.In the time of in moving contact is pushed into contact box 2, the leading section that the Mume flower contact 3 of annular is fastened in fixed contact 4 forms electrical connection.When moving contact was pulled outwardly out, Mume flower contact 3 broke away from fixed contact 4, and formation is opened circuit.This dynamic/static contact jockey is when operating current is 4000A, and the external diameter of Mume flower contact 3 must reach 149 millimeters.And if operating current continues to increase, then the external diameter of Mume flower contact 3 also needs significantly to increase; Huge overall dimension has limited its application in big electric current medium voltage switchgear equipment.In addition, after the external diameter of Mume flower contact 3 increases, can not guarantee behind the perseveration to contact entirely with the anchor ring of fixed contact 4, can cause that passage section reduces, contact resistance increases, heating is big.The temperature rise meeting that is produced thus causes copper bar 5 accelerated oxidations, and makes insulating part and secondary component in the switch cubicle take place to wear out, and makes the insulation property of equipment suffer brokenly to change the secondary component cisco unity malfunction.
The utility model content
The utility model aims to provide a kind of dynamic/static contact jockey, and its volume is little, and contact performance is good, can be applied to safely in the big electric current medium voltage switchgear equipment of 12kV 6300A.
The technical solution of the utility model is: a kind of dynamic/static contact jockey comprises contact box, fixed contact and moving contact; One end of contact box opens wide, and admits moving contact; Fixed contact is fixedly mounted on the bottom of contact box; Moving contact is the clamping fixed contact separably, forms to be electrically connected; Moving contact is two contact arms and two groups of two group duckbilled moving contacts that the duckbilled contact is formed, and fixed contact is two group T shape fixed contacts; Two electrodes of fixed contact pass the corresponding via hole in contact box bottom respectively, stretch in the contact box; Fixed contact is positioned on the outer body of contact box and fixedly mounts fin; Two groups of duckbilled contacts difference of moving contact are clamping fixed contact corresponding electrode separably.
In the enforcement structure of recommending: the bottom of described contact box has louvre, leaves the space between the bottom of contact box and the body of fixed contact.
Particularly: the contact of two electrode surfaces of described fixed contact and two groups of duckbilled contacts of moving contact is provided with the silver coating of 20 micron thickness respectively.
Best: the height of an electrode is greater than the height of another electrode on the described fixed contact.When making moving contact be advanced to fixed contact, avoid contacting simultaneously, advance strength thereby reduce half.
The utility model dynamic/static contact jockey adopts two group duckbilled moving contacts to cooperate the contact area when having increased clamping with two group T shape fixed contacts; Occasion at big current work can reduce overall dimension effectively.And fin increase cooling surface area is set on fixed contact, reduce temperature rise; Can reduce the oxidation of the copper bar that is connected with fixed contact, thereby reduce loop resistance; And can prevent switch cubicle generation open circuit fault.The utility model dynamic/static contact jockey adopts the overall dimensions of the dynamic/static contact jockey of Mume flower contact, compact conformation in the overall dimensions of the user mode of 12kV6300A is slightly less than the medium voltage switchgear equipment of prior art 12kV 4000A.After two groups of T shape fixed contacts are fixed with the contact box of band louvre, certain space is arranged, heat can be taken away from the space, thereby reduce temperature rise for circulation of air.Dynamic and static contact respectively plates 20 microns silver layer at contact-making surface, makes not only that contact resistance is little, heating is little, and durability is good.The temperature rise of the utility model dynamic/static contact jockey is low, and the insulating part that can reduce in the switch cubicle takes place to wear out, and the insulation property of equipment can not destroyed, and can also protect the secondary component operate as normal simultaneously and take place aging.The height of an electrode is greater than the height of another electrode on the fixed contact, and the resistance that moving contact pushes in the clamping process is little, good operability.
Description of drawings
Fig. 1 is the cross-sectional view of existing dynamic/static contact jockey.
Fig. 2 is the deployed configuration schematic diagram of an embodiment of the utility model dynamic/static contact jockey.
Fig. 3 is the perspective view of Fig. 2 embodiment moving contact.
Fig. 4 is the perspective view of Fig. 2 embodiment contact box.
Fig. 5 is the perspective view of Fig. 2 embodiment fixed contact.
Fig. 6 is the perspective view of Fig. 2 embodiment fin.
Fig. 7 is the cross-sectional view of Fig. 2 embodiment.
Embodiment
Embodiment of the utility model dynamic/static contact jockey can be applied in the big electric current medium voltage switchgear equipment of 12kV 6300A safely.Its deployed configuration, as shown in Figure 2.It comprises two contact arms 10 and two groups of two group duckbilled moving contacts, contact box 20, fixed contact 40 and fin 50 that duckbilled contact 30 is formed.
Please referring to Fig. 3: the front portion of two contact arms 10 of two groups of duckbilled moving contacts is fixedly connected with the rear portion of corresponding duckbilled contact 30 respectively; The rear portion of two contact arms 10 is provided with installing hole.The contact 31 of two groups of duckbilled contacts 30 is provided with the silver coating of 20 micron thickness respectively, black color on the remainder.
Please referring to Fig. 4: the rear end open of contact box 20, the diapire 22 of four sidewalls 21 and front end crosses the space of a rectangle up and down.Diapire 22 has via hole 23 and a plurality of louvre 24 of two strips.
Please referring to Fig. 5: fixed contact 40 is two group T shape fixed contacts.Its body 41 tops are provided with a plurality of installing holes 411, are connected so that fix with copper bar; Body 41 bottoms are provided with two electrodes 42 of projection forward.The height of an electrode 42-1 is greater than the height of electrode 42-2 in two electrodes 42.Also be provided with a plurality of screwed holes 413 on the lower flat of body 41, be used for installing fin 50; The bottom of body 41 also is provided with a plurality of via holes 412, is used for installing contact box 20.Two electrode 42 surfaces of fixed contact 40 are provided with the silver coating of 20 micron thickness respectively, and body 41 is deceived color on all the other except that the installing hole conducting position of top.
On the base plate 51 of fin 50 on corresponding fixed contact 40 bodies 41 lower flat each screwed hole 413 offer corresponding via hole 511, the base plate 51 of fin also be provided with multi-disc forward the projection fin 52, please referring to Fig. 6.The base plate 51 of fin 50 and fin 52 are surperficial through after the anodic oxidations, darkly color; Make radiating effect better.
Present embodiment is in the structure of user mode, please referring to Fig. 7: two electrodes 42 of fixed contact 40 pass via hole 23 corresponding on contact box 20 diapires 22 respectively, stretch in the contact box 20; The body 41 of fixed contact 40 is positioned at outside the contact box 20, and and the bottom of contact box 20 between leave the space.Each louvre 24 on the diapire 22 of this space and contact box 20 cooperates, and forms the passage of heat radiation.The via hole 511 that passes fin 50 base plates 51 with screw is locked in the screwed hole 413 on fixed contact 40 bodies 41, fin 50 is fixedly mounted on the bottom of fixed contact 40 front surfaces.And the via hole 412 that passes on fixed contact 40 bodies 41 with screw is locked on contact box 20 diapires 22, fixed contact 40 is fixedly mounted on the bottom of contact box 20.
Remove two electrodes 42 that held fixed contact 40 in the inner space of contact box 20, also admit the procephalic two groups of duckbilled contacts 30 of movable contact.
When the front portion of two contact arms 10 of moving contact was pushed in the contact box 20, two groups of duckbilled contacts 30 of moving contact are clamping fixed contact 40 corresponding electrode 421,422 respectively, formed to be electrically connected.When the front portion of two contact arms 10 of moving contact was pulled outwardly out contact box 20, two groups of duckbilled contacts 30 of moving contact separated with fixed contact 40 corresponding electrode 421,422 respectively, and formation is opened circuit.
Present embodiment adopts the overall dimensions of the dynamic/static contact jockey of Mume flower contact in the overall dimensions of user mode is slightly less than the medium voltage switchgear equipment of prior art 12kV 4000A.Present embodiment is installed in the big electric current medium voltage switchgear equipment of 12kV 6300A, can reduce the additional requirement of cabinet size and adopts less cabinet.
The above only is the utility model preferred embodiment.Yet, do not limit the scope that the utility model is implemented with this; The equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that the utility model is contained.
Claims (4)
1. a dynamic/static contact jockey comprises contact box, fixed contact and moving contact; One end of contact box opens wide, and admits moving contact; Fixed contact is fixedly mounted on the bottom of contact box; Moving contact is the clamping fixed contact separably, forms to be electrically connected; It is characterized in that: moving contact is two contact arms and two groups of two group duckbilled moving contacts that the duckbilled contact is formed, and fixed contact is two group T shape fixed contacts; Two electrodes of fixed contact pass the corresponding via hole in contact box bottom respectively, stretch in the contact box; Fixed contact is positioned on the outer body of contact box and fixedly mounts fin; Two groups of duckbilled contacts difference of moving contact are clamping fixed contact corresponding electrode separably.
2. a kind of dynamic/static contact jockey according to claim 1, it is characterized in that: the bottom of described contact box has louvre, leaves the space between the bottom of contact box and the body of fixed contact.
3. a kind of dynamic/static contact jockey according to claim 1 and 2 is characterized in that: the contact of two electrode surfaces of described fixed contact and two groups of duckbilled contacts of moving contact is provided with the silver coating of 20 micron thickness respectively.
4. a kind of dynamic/static contact jockey according to claim 1 and 2, it is characterized in that: the height of an electrode is greater than the height of another electrode on the described fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029331U CN201219070Y (en) | 2008-07-02 | 2008-07-02 | Connection device for moving and fixed contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029331U CN201219070Y (en) | 2008-07-02 | 2008-07-02 | Connection device for moving and fixed contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219070Y true CN201219070Y (en) | 2009-04-08 |
Family
ID=40541905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201029331U Expired - Lifetime CN201219070Y (en) | 2008-07-02 | 2008-07-02 | Connection device for moving and fixed contacts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219070Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931586A (en) * | 2012-10-23 | 2013-02-13 | 淮北万里龙波电气有限公司 | Visual contact box |
| CN102945762A (en) * | 2012-10-31 | 2013-02-27 | 伊顿公司 | Heat radiating device used on switching device of uninterruptible power supply (UPS) |
| CN103681021A (en) * | 2012-08-31 | 2014-03-26 | 施耐德电器工业公司 | Air cooling structure for circuit breaker |
| CN104242084A (en) * | 2013-06-13 | 2014-12-24 | 通用电气公司 | Pipe orifice used for switching device, switching device with pipe orifice and method thereof |
-
2008
- 2008-07-02 CN CNU2008201029331U patent/CN201219070Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681021A (en) * | 2012-08-31 | 2014-03-26 | 施耐德电器工业公司 | Air cooling structure for circuit breaker |
| CN103681021B (en) * | 2012-08-31 | 2016-03-02 | 施耐德电器工业公司 | For the air-cooled structure of circuit breaker |
| CN102931586A (en) * | 2012-10-23 | 2013-02-13 | 淮北万里龙波电气有限公司 | Visual contact box |
| CN102945762A (en) * | 2012-10-31 | 2013-02-27 | 伊顿公司 | Heat radiating device used on switching device of uninterruptible power supply (UPS) |
| CN104242084A (en) * | 2013-06-13 | 2014-12-24 | 通用电气公司 | Pipe orifice used for switching device, switching device with pipe orifice and method thereof |
| US9685768B2 (en) | 2013-06-13 | 2017-06-20 | General Electric Company | Spout for switchgear, switchgear having spout, and method thereof |
| CN104242084B (en) * | 2013-06-13 | 2018-08-14 | 通用电气公司 | Nozzle for switching device, the switching device with nozzle and its method |
| US10230221B2 (en) | 2013-06-13 | 2019-03-12 | Abb Schweiz Ag | Spout for switchgear, switchgear having spout, and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |