CN2899059Y - Bar non-excited distribution switch - Google Patents
Bar non-excited distribution switch Download PDFInfo
- Publication number
- CN2899059Y CN2899059Y CN 200620024432 CN200620024432U CN2899059Y CN 2899059 Y CN2899059 Y CN 2899059Y CN 200620024432 CN200620024432 CN 200620024432 CN 200620024432 U CN200620024432 U CN 200620024432U CN 2899059 Y CN2899059 Y CN 2899059Y
- Authority
- CN
- China
- Prior art keywords
- contact
- tap changer
- stripe shape
- circuit tap
- fixed
- 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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Abstract
The utility model belongs to the technical field of the switch distribution, in particular to a bar non-excited distribution switch. The main technical characteristics comprise an insulating trestle, a plurality of fix contacts fixed on the trestle, a transmission mechanism, a sliding trestle and a movable contact fixed on the trestle and composed of plate sheet metals which are provided with an arc convex bump in the middle and which are threaded by a pole and fixed by a press spring. The electrical contact of the upper and lower contact pieces on the bar non-excited distribution switch falls on the fix contact under the influence of the press spring in press regulation because of the movable contact fixed with an arc convex bump in the middle applied in the bar non-excited distribution switch. Therefore, the utility model is provided with fine contact between the fix and movable contacts, less contact resistance, more intensive feel and a simpler work structure.
Description
Technical field
The utility model belongs to the shunting switch technical field, relates in particular to a kind of stripe shape off circuit tap changer that the transformer pressure regulation is used that is used for.
Background technology
At present, the structure that is used in the stripe shape off circuit tap changer in the transformer comprises: insulating frame, be fixed in and decide contact, transmission mechanism and moving contact that some groups of being driven by this transmission mechanism are made of contact up and down on the insulating frame.During use, start transmission mechanism and drive moving contact and slide on the contact decide, change the pressure regulation purpose of annexation with the realization transformer.But because the contact of deciding of this stripe shape off circuit tap changer is the metal bar that is fixed on the insulating frame, moving contact be sandwiched in decide the contact both sides closely contact realize being electrically connected plane sheet metal.Such moving contact can with decide smoothly to contact between contact, pressure regulation is very convenient, but because moving contact is average with the frictional force of decide between the contact, therefore in the pressure regulation process, exist the operator be difficult for feeling moving contact and decide between the contact displacement, to realize that pressure regulation accurately then must adjust the defective of moving contact back and forth by controlling transmission mechanism.
The patent No. is that the utility model patent of ZL200420016613.6 discloses a kind of off circuit tap changer.In this off circuit tap changer, moving contact constitutes through sliding bar serial connection and the arc metal plate that is provided with helical spring arc shape in its both sides by two.Include the off circuit tap changer of this moving contact, although make moving contact when the one group of moving contact displacement that is communicated with slides into another group moving contact by transmission mechanism, the operator has certain feel, and realizes pressure regulation accurately; But when deciding the spacing broad of contact, then the arc metal plate of arc shape is done moving contact and just is restricted.In addition, arc metal plate by arc shape is done moving contact, because its arc is more level and smooth, the feel when therefore mobile moving contact is realized pressure regulation is also not obvious, exists equally to realize that pressure regulation accurately then must adjust the defective of moving contact back and forth by the control transmission mechanism.
The utility model content
The purpose of this utility model provides a kind of obvious perception moving contact of operator and decide displacement, pressure regulation stripe shape off circuit tap changer easily between the contact of can making.
The technical scheme of the utility model above-mentioned purpose is:
A kind of stripe shape off circuit tap changer, include insulating support, be fixed in several sliding supports that are fixed with some groups of moving contacts deciding contact, transmission mechanism and drive on this insulating support by this transmission mechanism, described moving contact comprises is close to the described upper and lower contact that is made of plate shape sheet metal of deciding the contact both sides, the middle part of this upper and lower contact is provided with arc bump, both sides be respectively with decide contact and realize the electric contact be electrically connected; One bar passes upper and lower contact and by the holddown spring of being worn it is pressed.
Its additional technical feature is: the height of the projection of two contacts is higher than the height of described electric contact about described being arranged at; The projection that described two contacts middle part is provided with is that the groove at contact middle part constitutes; Described holddown spring presses in last contact or following contact through described bar; Described holddown spring presses in last contact and following contact through described bar.
A kind of stripe shape off circuit tap changer provided by the utility model compared with prior art has the following advantages: one, because the moving contact of this stripe shape off circuit tap changer adopts plate shape sheet metal, and be provided with an arc bump at the middle part of this plate shape sheet metal, when contact is decided in the translation disengaging under the drive of moving contact at transmission mechanism, two contacts that are made of plate shape sheet metal will be by jack-up up and down, continue mobile moving contact, the electric contact of contact drops on rapidly under the effect of holddown spring and decides on the contact then, and clashes into; Therefore, can so that moving, decide can better contact between contact and reduce contact resistance, feel is obvious, and can accurately determine, electrically contacting between moving contact; Its two since constitute moving contact up and down two contacts be plate shape sheet metal, therefore can be used in the various stripe shape off circuit tap changers of deciding contact pitch; Its three since constitute moving contact up and down the projection of two contacts be that groove on the contact forms, so stripe shape off circuit tap changer Workpiece structure is simpler.
Description of drawings
Fig. 1 is the structural representation of stripe shape off circuit tap changer;
Fig. 2 is moving contact and the structural representation of deciding contact;
Fig. 3 is flat moving contact and the structural representation of deciding contact for electrical contact;
Fig. 4 is another kind of moving contact and the cross section structure schematic diagram of deciding contact.
Embodiment
Be described further below in conjunction with the structure and the embodiment of accompanying drawing a kind of stripe shape off circuit tap changer that the utility model proposed.
Be illustrated in figure 1 as the structural representation of a kind of stripe shape off circuit tap changer provided by the utility model.Its structure includes insulating support 1, be fixed on this insulating support several decides contact 2, transmission mechanism 3 and the sliding support that is fixed with some groups of moving contacts 45 that is driven by this transmission mechanism.The structure that constitutes above-mentioned stripe shape off circuit tap changer moving contact 4 as shown in Figure 2, comprise and be close to the upper and lower contact 6,7 that constitutes by plate shape sheet metal of deciding contact 2 both sides, the arc bump 8 of the middle part of this upper and lower contact for being provided with, both sides be respectively with decide that contact 2 realizes that the electric contact 9 (also can be plate shaped electric contact 12 shown in Figure 3) that is electrically connected, bar 10 pass upper and lower contact and it pressed to make and decide good being electrically connected of realization between contact and moving contact by the holddown spring of being worn 11.In said structure, holddown spring promptly can only press in last contact 6 or following contact 7, also can press simultaneously as shown in the figure in last contact and following contact.
During the transformer pressure regulation, the moving contact that drives on the slide mechanism by transmission mechanism moves horizontally, break away from when deciding contact, because the arc bump that is provided with in the middle will be by deciding contact, two contacts that are made of plate shape sheet metal will be by jack-up up and down, continue mobile contact, then the electric contact of contact drops on rapidly under the effect of holddown spring and decides on the contact up and down, and clashes into; Therefore, can be so that moving contact better effects if, the contact resistance of deciding between contact be littler, feel is stronger, and can accurately determine, electrically contacting between moving contact; Thereby realize the moving connection conversion of deciding contact, reach the purpose of pressure regulation.
In order to make when the mobile moving contact, the electric contact of contact clashes under the effect of holddown spring that to decide the vibrations feel that contact produces more obvious up and down, and then the height of moving contact middle part arc bump 8 is higher than the height of its both sides electric contact 9.
Be illustrated in figure 4 as another kind of moving contact and the structural representation of deciding contact, promptly in order to make the convenience on the disc type off circuit tap changer workpiece, the formation moving contact arc bump 8 (also comprising electrical contact 9) of two contacts up and down forms for the groove on the contact 13.
Claims (5)
1, a kind of stripe shape off circuit tap changer, include insulating support (1), be fixed in several sliding supports that are fixed with some groups of moving contacts (4) (5) deciding contact (2), transmission mechanism (3) and drive on this insulating support by this transmission mechanism, it is characterized in that: described moving contact comprises is close to the described upper and lower contact (6), (7) that are made of plate shape sheet metal of deciding contact (2) both sides, the middle part of this upper and lower contact is provided with arc bump (8), both sides be respectively with decide contact (2) and realize the electric contact (9) be electrically connected; One bar (10) passes upper and lower contact and by the holddown spring of being worn (11) it is pressed.
2, a kind of stripe shape off circuit tap changer according to claim 1 is characterized in that: the height of the projection of two contacts is higher than the height of described electric contact about described being arranged at.
3, a kind of stripe shape off circuit tap changer according to claim 1 and 2 is characterized in that: the projection that described two contacts middle part is provided with is that the groove at contact middle part constitutes.
4, a kind of stripe shape off circuit tap changer according to claim 1 is characterized in that: described holddown spring presses in last contact or following contact through described bar.
5, a kind of stripe shape off circuit tap changer according to claim 1 is characterized in that: described holddown spring presses in last contact and following contact through described bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024432 CN2899059Y (en) | 2006-05-16 | 2006-05-16 | Bar non-excited distribution switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024432 CN2899059Y (en) | 2006-05-16 | 2006-05-16 | Bar non-excited distribution switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899059Y true CN2899059Y (en) | 2007-05-09 |
Family
ID=38074393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620024432 Expired - Fee Related CN2899059Y (en) | 2006-05-16 | 2006-05-16 | Bar non-excited distribution switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899059Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009105931A1 (en) * | 2008-02-26 | 2009-09-03 | 上海华明电力设备制造有限公司 | Movable contact of tap changer |
| DE102014107722B3 (en) * | 2014-06-02 | 2015-09-03 | Maschinenfabrik Reinhausen Gmbh | Switch for a switching device, diverter switch of an on-load tap-changer and permanent main switch and disconnector for this purpose |
| GB2524502A (en) * | 2014-03-24 | 2015-09-30 | Eaton Ind Netherlands Bv | Plug contact |
-
2006
- 2006-05-16 CN CN 200620024432 patent/CN2899059Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009105931A1 (en) * | 2008-02-26 | 2009-09-03 | 上海华明电力设备制造有限公司 | Movable contact of tap changer |
| GB2524502A (en) * | 2014-03-24 | 2015-09-30 | Eaton Ind Netherlands Bv | Plug contact |
| DE102014107722B3 (en) * | 2014-06-02 | 2015-09-03 | Maschinenfabrik Reinhausen Gmbh | Switch for a switching device, diverter switch of an on-load tap-changer and permanent main switch and disconnector for this purpose |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 |