CN203706996U - High voltage AC single-phase isolation switch - Google Patents
High voltage AC single-phase isolation switch Download PDFInfo
- Publication number
- CN203706996U CN203706996U CN201420067980.2U CN201420067980U CN203706996U CN 203706996 U CN203706996 U CN 203706996U CN 201420067980 U CN201420067980 U CN 201420067980U CN 203706996 U CN203706996 U CN 203706996U
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- China
- Prior art keywords
- moving contact
- terminal board
- draw ring
- pivot
- contact
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- Expired - Fee Related
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model provides a high voltage AC single-phase isolation switch. The switch comprises an installation bottom plate. Two insulation pillars are disposed on the installation bottom plate and respectively provided with a tail end binding post plate and a head end binding post plate. The tail end binding post plate is provided with a support. A moving contact is hinged to the support. The switch is characterized in that the moving contact is contacted with a static contact disposed on the tail end binding post plate and a static contact disposed on the head end binding post plate in a switching-on state. Each static contact is made of two tegular springs. The installation bottom plate is provided with a plurality of installation holes. The edges of the installation holes are zigzag. The middle part of a fixing hook is pivoted to the moving contact. The lower end of the fixing hook is hook-like and hooked to a fixing plate. A draw ring is provided. The middle part of the draw ring is pivoted to the moving contact. The lower end of the draw ring is abutted against the upper end of the fixing hook. The high voltage AC single-phase isolation switch is more reliable in switching-off in a frozen state, more convenient to install and maintain and more reliable in switching-on guiding, and prevents high temperature rise points.
Description
Technical field
The utility model belongs to a kind of electric equipment, relates in particular to a kind of high-voltage alternating single-phase isolating switch.
Background technology
High-voltage alternating single-phase isolating switch is the not on-load behaviour type switch of single-phase hook rod for outdoor high-voltage alternating current electrical network, main is used in conjunction with circuit breaker or on-load switch, and for it provides visible fracture, the fail safe of raising equipment operating and maintenance,
High-voltage alternating single-phase isolating switch comprises mounting base, mounting base is provided with two insulation columns, on two insulation columns, be respectively equipped with end terminal board and head end terminal board, end terminal board is provided with support, on support, being hinged with cold-drawn copper knife plate, is also moving contact, after switch on of moving contact, contacts with fixed contact, the hook of end is hooked on the fixed head arranging on the corresponding insulation column of head end terminal board, and fixing moving contact.
The shortcoming of the said structure of prior art structure is: easily occur contact temperature rise; When mounting base need to be installed, not very convenient; Outdoor environment is severe, if occur to freeze, will make hook disengaging fixed head more difficult when separating brake.
Utility model content
The utility model provides a kind of high-voltage alternating single-phase isolating switch, its objective is and solve the shortcoming that prior art exists, make the separating brake under the state of freezing of high-voltage alternating single-phase isolating switch more reliable, installation and maintenance are more convenient, the guiding of closing a floodgate is more reliable, reduces the appearance of high temperature rise point.
The utility model solves the technical scheme that its technical problem adopts:
High-voltage alternating single-phase isolating switch, comprise mounting base, mounting base is provided with two insulation columns, on two insulation columns, be respectively equipped with end terminal board and head end terminal board, end terminal board is provided with support, on support, be hinged with the moving contact of cold-drawn copper knife plate form, it is characterized in that: when "on" position, moving contact contacts with the fixed contact on head end terminal board with the fixed contact being located on end terminal board, described fixed contact is made up of two watts of shape springs, the lower end of each watt of shape spring is stiff end, upper end is free end, the middle part of two watts of shape springs is projection in opposite directions, when "on" position, the middle part contact of two watts of shape springs is on moving contact and clamp moving contact, mounting base is provided with several installing holes, and each installing hole is made up of several square through holes, and each square through hole is communicated with adjacent square through hole, the edge indentation of installing hole, there is a stay hook, the middle part of stay hook is hubbed on moving contact, the lower end of stay hook is hook-shaped and is hooked on fixed head, fixed head be located at the corresponding insulation column of head end terminal board on, the length from its pivot to bottom of stay hook is less than the length from its pivot to upper end, have a draw ring, the middle part of draw ring is hubbed on moving contact, the position of the pivot of draw ring between pivot and the end terminal board of stay hook, and the length from its pivot to bottom of draw ring is less than the length from its pivot to upper end, the lower end contact of draw ring is in the upper end of stay hook.
Usefulness of the present utility model is:
The utility model adopts the design of two fixed contacts, effectively reduces contact resistance and contact temperature rise that switch is bribed, has reduced the appearance of high temperature rise point; The fixed contact that watt shape spring forms forms ligule from guide frame, guarantees that, in the time that switch closes a floodgate, moving contact reliably contacts with fixed contact; The jagged installing hole in the edge being made up of several square holes on mounting base can make on-the-spot installation repairing safeguard more convenient at supporting footpath, standard side hook bolt; Draw ring and stay hook form lever actuated, can promote more effortlessly stay hook than prior art and depart from fixed head, are conducive to separating brake under the state that freezes.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model "on" position structure chart;
Fig. 2 is that the utility model stay hook leaves fixed head structure graph;
Fig. 3 is the utility model mounting base schematic diagram;
Fig. 4 is the utility model fixed contact schematic diagram.
Embodiment
As shown in Figure 1 and Figure 2, high-voltage alternating single-phase isolating switch of the present utility model, comprise stainless steel mounting base 13, as shown in Figure 3, mounting base 13 is provided with several installing holes 131, each installing hole 131 is elongated and be arranged in order and formed by several square through holes, and each square through hole is communicated with adjacent square through hole, like this edge indentation of installing hole 131.
Mounting base 13 is provided with two insulation columns 12, and insulation column 12 is selected outdoor special epoxy resin injection molding, has hydrophobicity good, and insulation automatic recovery ability is strong, the creepage feature of requirement than meeting high gradation for surface pollution.
An insulation column 12 is provided with the end terminal board 1 of electroplate processing, another root insulation column 12 is provided with the head end terminal board 9 of electroplate processing, end terminal board 1 is provided with stainless steel stent 2, and support 2 is hinged with the moving contact 3 of cold-drawn copper knife plate form taking stainless steel rotation axis 30 as hinge.
End terminal board 1 is provided with fixed contact 11, and head end terminal board 9 is provided with fixed contact 91.
When moving contact 3 "on" position, insert fixed contact 11 and fixed contact 91.As shown in Figure 4, described fixed contact 11 is made up of two watts of shape springs 12, so-called watt shape spring is exactly the bending plates that have of being made up of spring steel, the lower end of each watt of shape spring 12 is stiff end, upper end is free end, the middle part of two watts of shape springs 12 is projection in opposite directions, when "on" position, the middle part contact of two watts of shape springs 12 is on moving contact 3 and clamp moving contact 3, position from the similar opening of two watts of shape springs 12 when this structure makes moving contact 3 enter fixed contact 11 enters from guiding, it is accurate that guarantee enters, and the structure of fixed contact 91 is identical with fixed contact 11.Watt shape spring the selection of material is that high-strength corrosion-resisting stainless steel spring plate has certain pressure in order to maintain between fixed contact and moving contact.
As shown in Figure 1 and Figure 2, there is a stay hook 4, the middle part of stay hook 4 is hubbed on moving contact 3 with pivot 40, the lower end of stay hook 4 is hook-shaped 41 and is hooked on fixed head 5, fixed head 5 be located at the corresponding insulation column 12 of head end terminal board 9 on, 42 length of the part from pivot 40 to bottom of stay hook 4 are less than the length of the part 43 from pivot 40 to upper end; There is a draw ring 6, the upper end of draw ring 6 is annulus 61, the middle part of draw ring 6 is hubbed on moving contact 3 with pivot 60, the position of the pivot 60 of draw ring 6 between pivot 40 and the end terminal board 1 of stay hook 4, part 62 length from its pivot 60 to bottom of draw ring 6 are less than the length of the part 63 from its pivot 60 to upper end.
The lower end contact of draw ring 6 is in the upper end of stay hook 4, while use like this, first pull annulus 61 and rotate draw ring 6, the lower end contact of draw ring 6 is in the upper end of stay hook 4 and drive stay hook 4 to rotate, because 42 length of the part from pivot 40 to bottom of stay hook 4 are less than the length of the part 43 from pivot 40 to upper end, and part 62 length from its pivot 60 to bottom of drawing evil idea 6 are less than the length of the part 63 from its pivot 60 to upper end, draw ring 6 forms a lever like this, stay hook 4 also forms a lever, two mutual contacts of lever, pull draw ring 6 just can rotate stay hook 4 by less strength, separating brake is more smooth, even if freeze also separating brake smoothly.
Claims (1)
1. high-voltage alternating single-phase isolating switch, comprise mounting base, mounting base is provided with two insulation columns, on two insulation columns, be respectively equipped with end terminal board and head end terminal board, end terminal board is provided with support, on support, be hinged with the moving contact of cold-drawn copper knife plate form, it is characterized in that: when "on" position, moving contact contacts with the fixed contact on head end terminal board with the fixed contact being located on end terminal board, described fixed contact is made up of two watts of shape springs, the lower end of each watt of shape spring is stiff end, upper end is free end, the middle part of two watts of shape springs is projection in opposite directions, when "on" position, the middle part contact of two watts of shape springs is on moving contact and clamp moving contact, mounting base is provided with several installing holes, and each installing hole is made up of several square through holes, and each square through hole is communicated with adjacent square through hole, the edge indentation of installing hole, there is a stay hook, the middle part of stay hook is hubbed on moving contact, the lower end of stay hook is hook-shaped and is hooked on fixed head, fixed head be located at the corresponding insulation column of head end terminal board on, the length from its pivot to bottom of stay hook is less than the length from its pivot to upper end, have a draw ring, the middle part of draw ring is hubbed on moving contact, the position of the pivot of draw ring between pivot and the end terminal board of stay hook, and the length from its pivot to bottom of draw ring is less than the length from its pivot to upper end, the lower end contact of draw ring is in the upper end of stay hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067980.2U CN203706996U (en) | 2014-02-14 | 2014-02-14 | High voltage AC single-phase isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067980.2U CN203706996U (en) | 2014-02-14 | 2014-02-14 | High voltage AC single-phase isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706996U true CN203706996U (en) | 2014-07-09 |
Family
ID=51057396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067980.2U Expired - Fee Related CN203706996U (en) | 2014-02-14 | 2014-02-14 | High voltage AC single-phase isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053885A (en) * | 2020-10-21 | 2020-12-08 | 国网福建省电力有限公司电力科学研究院 | Improved 10kV isolating switch |
-
2014
- 2014-02-14 CN CN201420067980.2U patent/CN203706996U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053885A (en) * | 2020-10-21 | 2020-12-08 | 国网福建省电力有限公司电力科学研究院 | Improved 10kV isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20190214 |