CN2590155Y - Knife switch - Google Patents
Knife switch Download PDFInfo
- Publication number
- CN2590155Y CN2590155Y CN 02251309 CN02251309U CN2590155Y CN 2590155 Y CN2590155 Y CN 2590155Y CN 02251309 CN02251309 CN 02251309 CN 02251309 U CN02251309 U CN 02251309U CN 2590155 Y CN2590155 Y CN 2590155Y
- Authority
- CN
- China
- Prior art keywords
- disconnecting link
- copper coin
- movable
- contact
- hook
- 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 relates to a knife switch which is provided with a socket and a movable knife switch, wherein, two copper plate fixed contacts are arranged on the socket. The lower end of the socket is provided with a hook-shaped lower seat frame, and the movable knife switch is provided with two parallel flashboards made of an entire insulating material plate. The two flashboards are connected by a clamping bolt having a spring, and the inner sides of the two flashboards are respectively connected with two pairs of opposite dihedral-shaped copper plate movable contacts. Gaps are arranged between each pair of the copper plate movable contacts for matching with the copper plate static contacts. One surface of the dihedral-shaped movable contact is connected to the flashboard by a bolt, and the other surface is provided with an electrical contact of a fuse link. The lower end of the movable knife switch is provided with a movable knife switch shaft which is matched with the hook-shaped lower seat frame arranged at the lower end of the socket, and the upper end of the movable knife switch is provided with a picking hook. The two flashboards of the movable knife switch of the utility model are made of the entire insulating material plate, and the movable contact is in a dihedral shape. One surface is fixedly connected to the flashboard by the bolt, and an electric contact of the fuse link is arranged on the other surface. When the switch is movable, the electric contact of the knife switch is not affected by external force, and the good contact of the electrical contact can be ensured.
Description
Technical field
The utility model relates to a kind of secondary disconnecting link switch (hereinafter to be referred as the disconnecting link switch) of 10 KV distribution line transformers, particularly a kind of movable disconnecting link of disconnecting link switch.
Background technology
The disconnecting link switch has base and movable disconnecting link, two fixed contacts are arranged on the base, there is hook-type lower seat frame the lower end of base, movable disconnecting link has two parallel flashboards, link to each other with grip bolt between two flashboards with spring, on the movable disconnecting link two pairs of relative copper coin moving contacts are arranged, have between the every pair of copper coin moving contact with base on two gaps that fixed contact matches, the two pairs of moving contacts can be distinguished two fixed contacts on the Holding seat, can be connected with fuse link between two pairs of moving contacts, there is the movable disconnecting link axle that matches with hook-type lower seat frame on the base movable disconnecting link lower end, and there is the dislodging hook upper end of movable disconnecting link.In the prior art, every flashboard of movable disconnecting link is that three sections by two side copper plate moving contact sections and middle insulating material section are formed by connecting with bolt, and during use, fuse link is to link to each other with connecting bolt between dielectric panel with the copper coin moving contact.This disconnecting link switch is owing to the flashboard of movable disconnecting link is formed by three sections along its length, interlude is a dielectric panel, the both sides section is the copper coin moving contact, link to each other with bolt between dielectric panel and copper coin moving contact, fuse link is to be connected on the copper coin moving contact with the connecting bolt that is connected between copper coin moving contact and dielectric panel, this connecting bolt is the structure connecting bolt of dielectric panel and copper coin moving contact, the electric contact that also is fuse link and copper coin moving contact connects bolt, because movable disconnecting link is longer, when movable disconnecting link switch is movable, above-mentioned tie point can be subjected to external force, tie point is sometimes because of being subjected to external force movable, cause the electric contact contact bad, can strike sparks when serious, burn movable disconnecting link.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, and the electric contact connecting bolt that proposes the structure connecting bolt of a kind of dielectric panel of movable disconnecting link and copper coin moving contact and fuse link and copper coin contact is used the disconnecting link switch of bolt separately respectively.
The utility model is realized with the following method.
This disconnecting link switch has base and movable disconnecting link, two copper coin fixed contacts are arranged on the base, there is hook-type lower seat frame the lower end of base, the parallel flashboard that movable disconnecting link has two integral insulation plate of material to make, link to each other with grip bolt between two flashboards with spring, be connected with two pairs of relative straight dihedral angle shape copper coin moving contacts respectively two flashboard inboards, have between the every pair of relative copper coin moving contact with base on two gaps that the copper coin fixed contact matches, a face of straight dihedral angle shape moving contact is to be connected on the flashboard with bolt, the electric contact that fuse link and copper coin moving contact are arranged on another face, in the lower end of movable disconnecting link the movable disconnecting link axle that matches with base lower end hook-type lower seat frame is arranged, there is the dislodging hook upper end of movable disconnecting link.
During use, between the electric contact of two pairs of relative straight dihedral angle shape copper coin moving contacts, connect fuse link, the movable disconnecting link axle of movable disconnecting link lower end is hung on the hook-type lower seat frame of base lower end, the dislodging hook of promotion activity disconnecting link upper end, allow the relative straight dihedral angle shape moving contact of two couples on the flashboard clamp two fixed contacts on the base respectively, make the conducting of disconnecting link switch combined floodgate, after fuse link fusing, can take movable disconnecting link and change fuse link, close a floodgate again and use.
Two flashboards of the movable disconnecting link of the utility model are to make with the integral insulation plate of material, moving contact is straight dihedral angle shape copper coin, the one side of straight dihedral angle shape copper coin moving contact is connected on the flashboard with the bolt location, the fuse link electric contact is arranged on the another side, the bolt that is electrically connected of the structure connecting bolt of copper coin moving contact and insulating material flashboard and copper coin moving contact and fuse link is used separately bolt respectively, the disconnecting link switch is when switch is movable, electric connection point is not subjected to the influence of movable disconnecting link switch activity, guarantees that the electric contact contact is good.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the schematic perspective view of disconnecting link switch;
Fig. 2 is the schematic perspective view of the fixed contact disconnecting link switch parallel with the length direction of disconnecting link switch;
Fig. 3 is the schematic perspective view that the straight dihedral angle shape copper coin moving contact of crimp is arranged.
Embodiment
Among Fig. 1, this disconnecting link switch has base 1 and movable disconnecting link 2, two copper coin fixed contacts 3 are arranged on the base, there is hook-type lower seat frame 4 lower end of base, the parallel flashboard 5 that movable disconnecting link has two integral insulation plate of material to make, link to each other with grip bolt 6 between two flashboards with spring, be connected with two pairs of relative straight dihedral angle shape copper coin moving contacts 7 respectively two flashboard inboards, have between the every pair of relative copper coin moving contact with base on two gaps that fixed contact matches, a face 8 of straight dihedral angle shape moving contact is to be connected on the flashboard with bolt, the electric contact 9 that copper coin moving contact and fuse link are arranged on another face, in the lower end of movable disconnecting link the movable disconnecting link axle 10 that matches with base lower end hook-type lower seat frame is arranged, there is dislodging hook 11 upper end of movable disconnecting link.
The copper coin plane of above-mentioned copper coin fixed contact is perpendicular with the length direction of disconnecting link switch.Thereby in order to increase the make-break capacity of the contact area assurance disconnecting link switch between copper coin moving contact and copper coin fixed contact, the copper coin plane of copper coin fixed contact also can parallel with the length direction of disconnecting link switch.Among Fig. 2, the copper coin plane of the copper coin fixed contact 12 on the disconnecting link switch pedestal parallels with the length direction of disconnecting link switch.
In order to reduce the influence of the flashboard that heat that fuse link produces in when operation makes dielectric panel, among Fig. 3, straight dihedral angle shape copper coin moving contact has on the outer edge of one side 13 of electric contact the crimp 15 that parallels with the face that the tie point that links to each other with flashboard is arranged 14 of straight dihedral angle shape copper coin moving contact is arranged, and the auxiliary electrical contact 16 of copper coin moving contact and fuse link is arranged on this crimp 15.
The width of the mouth of hook of the hook-type lower seat frame of the base lower end in the prior art is less than the diameter of the movable disconnecting link axle of movable disconnecting link lower end, for being hung from base, plucks movable disconnecting link, the cross section of the movable disconnecting link axle of movable disconnecting link lower end is that circle lacks shape, the height that circle lacks is just in time waited until the width in the mouth of hook, and the very inconvenient movable disconnecting link of such structure is plucked from the extension on the base.For convenience of dislodging activity disconnecting link from base, the width of the mouth of hook of the hook-type lower seat frame of above-mentioned base lower end equals the diameter of the movable disconnecting link axle of movable disconnecting link lower end.
Claims (6)
1. disconnecting link switch, base and movable disconnecting link are arranged, two copper coin fixed contacts are arranged on the base, there is hook-type lower seat frame the lower end of base, there is the movable disconnecting link axle that matches with base lower end hook-type lower seat frame the lower end of movable disconnecting link, there is the dislodging hook upper end of movable disconnecting link, movable disconnecting link has two parallel flashboards, link to each other with grip bolt between two flashboards with spring, it is characterized in that: two parallel flashboards are integral insulation plate of material, be connected with two pairs of relative dihedral angle shape copper coin moving contacts respectively two flashboard inboards, have between the every pair of relative copper coin moving contact with base on two gaps that the copper coin fixed contact matches, a face of dihedral angle shape copper coin moving contact is to be connected on the flashboard with bolt, and the electric contact of copper coin moving contact and fuse link is arranged on another face of dihedral angle shape copper coin moving contact.
2. by the described disconnecting link switch of claim 1, it is characterized in that: the copper coin plane of described copper coin fixed contact and the length direction of disconnecting link switch are perpendicular.
3. by the described disconnecting link switch of claim 1, it is characterized in that: the copper coin plane of described copper coin fixed contact parallels with the length direction of disconnecting link switch.
4. by claim 1,2 or 3 described disconnecting link switches, it is characterized in that: described straight dihedral angle shape copper coin moving contact has on the outer edge of one side of electric contact the crimp that parallels with the face that the tie point that links to each other with flashboard is arranged of straight dihedral angle shape copper coin moving contact is arranged, and the auxiliary electrical contact of copper coin moving contact and fuse link is arranged on this crimp.
5. by claim 1,2 or 3 described disconnecting link switches, it is characterized in that: the width of the mouth of hook of the hook-type lower seat frame of described base lower end equals the diameter of the movable disconnecting link axle of movable disconnecting link lower end.
6. by the described disconnecting link switch of claim 4, it is characterized in that: the width of the mouth of hook of the hook-type lower seat frame of described base lower end equals the diameter of the movable disconnecting link axle of movable disconnecting link lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251309 CN2590155Y (en) | 2002-12-17 | 2002-12-17 | Knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02251309 CN2590155Y (en) | 2002-12-17 | 2002-12-17 | Knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590155Y true CN2590155Y (en) | 2003-12-03 |
Family
ID=33721203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02251309 Expired - Fee Related CN2590155Y (en) | 2002-12-17 | 2002-12-17 | Knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590155Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394195A (en) * | 2011-08-31 | 2012-03-28 | 王漳泉 | High voltage isolation switch |
| CN101763976B (en) * | 2009-12-15 | 2013-07-03 | 河南省电力公司洛阳供电公司 | Method for reducing failure rate of knife switch on 10KV column |
-
2002
- 2002-12-17 CN CN 02251309 patent/CN2590155Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763976B (en) * | 2009-12-15 | 2013-07-03 | 河南省电力公司洛阳供电公司 | Method for reducing failure rate of knife switch on 10KV column |
| CN102394195A (en) * | 2011-08-31 | 2012-03-28 | 王漳泉 | High voltage isolation switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |