CN106611662A - Outdoor alternating-current high-voltage isolation switch with fixed contact mutual plug structure - Google Patents
Outdoor alternating-current high-voltage isolation switch with fixed contact mutual plug structure Download PDFInfo
- Publication number
- CN106611662A CN106611662A CN201510707926.9A CN201510707926A CN106611662A CN 106611662 A CN106611662 A CN 106611662A CN 201510707926 A CN201510707926 A CN 201510707926A CN 106611662 A CN106611662 A CN 106611662A
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- China
- Prior art keywords
- contact
- fixed
- static contact
- static
- main
- 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.)
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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
- H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
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- Slide Switches (AREA)
Abstract
The invention discloses an outdoor alternating-current high-voltage isolation switch with a fixed contact mutual plug structure. The outdoor alternating-current high-voltage isolation switch comprises an insulator, a movable contact base, a fixed contact base and a guide sleeve, wherein the movable contact base and the fixed contact base are fixed to the insulator; the fixed contacts are fixed to the fixed contact base; a movable contact is fixed to the movable contact base; the fixed contacts are fixed to an inner side of the guide sleeve; two groups of fixed contacts, namely, a main fixed contact and a secondary fixed contact are provided; the main fixed contact is in sliding fit with the secondary fixed contact; the main fixed contact is fixed to the fixed contact base; the fixed contact base is connected with a wiring terminal; the movable contact is coupled to the other end of the guide sleeve; and the movable contact is in surface contact with the fixed contacts. The outdoor alternating-current high-voltage isolation switch has the advantages that surface contact is adopted, so that the contact area is increased and the resistance of contact surfaces is reduced, thereby ensuring smooth flowing of current, and preventing the phenomena of spark discharge and the like. A structure in which the movable contact is in direct contact with the fixed contacts is adopted, so that the defects of excessive contacts and unreliable contact caused by a technology of communicating the movable contact and the fixed contacts through other conductors are overcome.
Description
Technical field
The present invention relates to power equipment, more particularly, to a kind of high voltage isolator.
Background technology
The typical structure of existing outdoor high-voltage isolating switch is binding post leading by activity
Body is connected, such as Chinese Patent Application No. 201020678544.0, and its structure is " a kind of outdoor
Alternating-current high-voltage isolation switch, including upper outlet board and lower outlet board, upper outlet board and lower outlet board
It is separately fixed on two insulators, connects one by connecting shaft on lower outlet board and move tactile
Knife, movable touch knife rotates the upper outlet board of connection centered on connecting shaft；The upper outlet board is provided with
Upper cutter head, the upper cutter head is in be bent upwards setting, the lower outlet board with the upper outlet board
Lower tool rest is provided with, the lower tool rest is in be bent upwards setting with the lower outlet board, its feature
It is that the movable touch knife includes two plug-in strip plates, and described two plug-in strip plates are by the connecting shaft
Link together with pivot pin, the connecting shaft and pivot pin are respectively arranged at two ends with axle platform, described two
Individual plug-in strip plate is close to axle platform phase by being arranged on the spring forces of the connecting shaft and pivot pin outer end
Mutually it be arranged in parallel, operation handle, the upper cutter head and lower knife is provided with described two plug-in strip plates
The width of seat is more than the distance between two plug-in strip plates.", the structure is suffered from the drawback that：1.
Contact of the moving contact with static contact is face-linear contact lay, because contact area is little, easily produce compared with
After big resistance, especially longtime running, due to the impact of spark discharge, produce at contact surface
Raw oxide-film and carbonized film, cause local electrical resistance to increase, it is easier to cause spark when closing a floodgate to put
Electricity, is consequently formed vicious cycle；2. because moving contact faces structure directly using double, it is double face directly two
Side arranges spring to ensure the close contact of moving contact and static contact, and spring is multigroup；Long-term fortune
After row, because double moving contacts faced directly unavoidably produce certain deformation, every group of spring is caused
Pressure is uneven, it is thus impossible to ensure the reliable contacts of moving contact and static contact.
The content of the invention
To solve above-mentioned technical problem, it is an object of the invention to provide a kind of surface-to-surface contact, and
And the reliable disconnecting switch of contact is always ensured that, concrete scheme is as follows：
A kind of face contacts outdoor AC high-voltage disconnecting switch, including insulator, is fixed on insulation
Movable contact block and fixed contact pedestal on son, static contact is fixed on fixed contact pedestal, and moving contact is fixed
On movable contact block, it is characterised in that：Also include fairlead, the static contact is fixed on guiding
The inner side of set；The static contact is two groups, static contact and secondary static contact, main stationary contact based on difference
It is to be slidably matched between head and secondary static contact；Main static contact is fixed on fixed contact pedestal；Static contact
Seat is connected with binding post；Moving contact axle is connected on the other end of fairlead, moving contact and stationary contact
Head is face contact.
The end face of the moving contact include with static contact contact portion and with static contact not contact site
Point, thickness of the thickness with static contact contact portion more than static contact not contact portion.
The side of the main static contact and secondary static contact arranges boss, and the side of the moving contact sets
Put groove, the boss and the groove fit.
The boss is semicircle ball-type, and the groove is strip.
Slot is set on the main static contact, and the secondary static contact is inserted in the slot.
Bolt nut structure is set between the main static contact and secondary static contact, the end of bolt with
Spring is set between secondary static contact.
The diameter of the end of the bolt is equal to the thickness at the axis hole of moving contact.
Moving contact inclined-plane is set at the thickness change of the moving contact, at the thickness change of static contact
Static contact inclined-plane is set.
It is an advantage of the invention that：As a result of face contact, contact area is increased, reduced
The resistance of contact surface, thus it is guaranteed that the smooth flow of electric current, it is therefore prevented that spark discharge etc. is existing
As；Further, since using the structure of moving contact and static contact directly contact, it is to avoid moving contact
It is excessive by the contact that the technology that other conductors are connected is brought with static contact, and contact can not
The shortcoming leaned on.
Description of the drawings
Fig. 1 is the structural representation that moving contact is contacted with static contact；
Fig. 2 is the fixed structure schematic diagram of static contact and insulator；
Fig. 3 is the cross sectional shape schematic diagram of moving contact；
Fig. 4 is the left view of Fig. 3；
The inserting slot construction schematic diagram of static contact and secondary static contact based on Fig. 5；
In figure, 1 is moving contact, static contact based on 2, and 3 are secondary static contact, and 4 is fairlead,
5 is axle connecting bolt, and 6 is hold-down bolt, and 7 is spring, and 8 is static contact inclined-plane, and 9 touch for dynamic
Head inclined-plane, based on 10 static contact bottom, and 11 is insulator, and 12 is boss, and 13 is bolt,
15 is moving contact axis hole, and 16 is groove, and 17 are and static contact not contact portion, 18 be with it is quiet
Contact part, 19 is slot, and 20 is the lower end of secondary static contact.
Specific embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, as shown in figure 1, the present invention includes insulator
11, the movable contact block and fixed contact pedestal being fixed on insulator 11, static contact is fixed on stationary contact
On headstock, moving contact 1 is fixed on movable contact block, also including fairlead 4, the static contact
It is fixed on the inner side of fairlead 4；The fairlead is plate-like structure made by insulant；
The static contact is two groups, respectively based on static contact 2 and secondary static contact 3, main static contact 2 with
It is to be slidably matched between secondary static contact 3；Specific sliding matching mode can have many kinds, for example,
The lower end of main static contact 2 arranges slot 19, and the slot 19 is inserted in the lower end 20 of secondary static contact
In, can also be the structure shown in Fig. 2, bolt is set between main static contact 2 and secondary static contact 3
Nut structure, secondary static contact bottom 20 arranges chute, and in bolt 13 chute is passed through,
Spring 7 is set between the end of bolt 13 and secondary static contact bottom 20, so, in spring force
It is to be slidably matched and keep face to contact between main static contact 2 and secondary static contact 3 under effect；
Main static contact 2 is fixed on fixed contact pedestal；Fixed contact pedestal is connected with binding post；It is dynamic
The axle of contact 2 is connected on the other end of fairlead 4, and at the axle place of connecing axle connecting bolt 5 and spring are arranged
7, hold-down bolt 6 and spring 7 are set in one end of static contact, so, in the work of spring force
With under, two side planes of fairlead 4 are mutually compressed, and then drive moving contact mutual with static contact
Tightly abut together, be face contact.
The end face of the moving contact 2 includes not connect with static contact contact portion 18 and with static contact
Contact portion point 17, the thickness with static contact contact portion 18 is more than static contact not contact portion
17 thickness.Advantage of this is that and the bottom of moving contact is arranged to into an inclined-plane, have
Guide effect.
To ensure the locking of moving contact and static contact, the main static contact 2 and secondary static contact 3
Side arranges boss 12, and the side of the moving contact 1 arranges groove 16, the boss 12 with
The groove 16 coordinates.
The boss 12 is semicircle ball-type, and the groove 16 is strip.
The diameter of the end of 13 bolt is equal to the thickness at the axis hole of moving contact；The size
Setting can ensure moving contact do not contact with static contact when, the distance between static contact can not mistake
It is little, in order to avoid bring moving contact insertion difficult.
It is that proof strength and insertion are smooth, it is oblique that moving contact is set at the thickness change of the moving contact
Face 9, arranges static contact inclined-plane 8 at the thickness change of static contact.
Claims (1)
1. a kind of outdoor AC high-voltage disconnecting switch of the mutual inserting structure of static contact, including insulator,
Fixed movable contact block and fixed contact pedestal on the insulator, static contact is fixed on fixed contact pedestal,
Moving contact is fixed on movable contact block, it is characterised in that：Also include fairlead, the static contact
It is fixed on the inner side of fairlead；The static contact is two groups, static contact and secondary stationary contact based on difference
Head, is to be slidably matched between main static contact and secondary static contact；Main static contact is fixed on fixed contact pedestal
On；Fixed contact pedestal is connected with binding post；Moving contact axle is connected on the other end of fairlead, moves
Contact is contacted with static contact for face；
The end face of the moving contact include with static contact contact portion and with static contact not contact site
Point, thickness of the thickness with static contact contact portion more than static contact not contact portion；
The side of the main static contact and secondary static contact arranges boss, and the side of the moving contact sets
Put groove, the boss and the groove fit；
The sliding matching structure is：Slot, the secondary static contact are set on the main static contact
Insert in the slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707926.9A CN106611662A (en) | 2015-10-26 | 2015-10-26 | Outdoor alternating-current high-voltage isolation switch with fixed contact mutual plug structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707926.9A CN106611662A (en) | 2015-10-26 | 2015-10-26 | Outdoor alternating-current high-voltage isolation switch with fixed contact mutual plug structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106611662A true CN106611662A (en) | 2017-05-03 |
Family
ID=58614365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510707926.9A Pending CN106611662A (en) | 2015-10-26 | 2015-10-26 | Outdoor alternating-current high-voltage isolation switch with fixed contact mutual plug structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106611662A (en) |
-
2015
- 2015-10-26 CN CN201510707926.9A patent/CN106611662A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170503 |