CN2896493Y - Double-armtype high-pressure isolation switch probe - Google Patents
Double-armtype high-pressure isolation switch probe Download PDFInfo
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- CN2896493Y CN2896493Y CN 200620071516 CN200620071516U CN2896493Y CN 2896493 Y CN2896493 Y CN 2896493Y CN 200620071516 CN200620071516 CN 200620071516 CN 200620071516 U CN200620071516 U CN 200620071516U CN 2896493 Y CN2896493 Y CN 2896493Y
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- contact
- lobe
- yoke
- spring
- negative
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Abstract
The utility model relates to a contact terminal for two-arm high-voltage isolating switches, pertaining to a high-voltage electric element, comprising a cathode contact terminal and an anode contact terminal, characterized in that the anode contact terms consists of an electric arm and a camber contact terminal linked to the electric arm; the cathode contact terminal consists of a contact tube, a contact terminal base, a copper yoke linked to the contact terminal base, and a spring yoke in the copper yoke, and the copper yoke has cathode contact clappers. The utility model is simple in construction, and realizes full contact with the surrounding areas in parallel connection between the cathode and the anode contact terminals; it has a large carrying capacity, stable electric performance and a long service life; it does not overheat easily and is easy to maintain or regulate.
Description
Technical field: the utility model relates to a kind of double-arm high voltage isolation switch contact, and it belongs to the divided contact part of the high voltage isolator of outdoor electric power system, especially for the divided contact of double-arm high voltage isolator.
Technical background: high voltage isolator be used for branch, close the no load condition circuit, reach the purpose that safety is isolated repair apparatus and change-over circuit, its contact should be able to pass through rated current reliably in "on" position.Existing high voltage isolator is made of contact base, fingertip, spring and cylindrical contact.Disclosed the structure of this contact in 1992 the 4th phases of " High-Voltage Electrical Appliances " magazine the 33rd page of " GWS Series Switch-disconnector overheat Analysis and solution " literary composition, its structure is shown in Figure 1.Its operation principle of above-mentioned contact system is to provide contact pressure by spring, has the contact characteristics of adjustment automatically, but out of doors after the long-time running, because dust and greasy dirt effect, the resistance of getting an electric shock indirectly of contact base and fingertip is increased, and causes that contact generates heat; Constitute bridge circuit because of the contact, front and back of both sides fingertip and spring on the other hand, as shown in Figure 3,, will make the electric bridge imbalance cause the spring shunting, make spring heating annealing, quicken the contact heating, and cause finally that contact is overheated to be burnt if the fingertip resistance unbalance increases.Its contact electric property instability, system reliability reduces.
Summary of the invention: order of the present utility model is to provide a kind of contact that is applicable to double-arm isolating switch, realizes the full way of contact of contact periphery in parallel, and it is big to have an ampacity, and can not produce the heating burnout phenomenon, long service life, thus improve the reliability of system.
The utility model is achieved in that a kind of double-arm high voltage isolation switch contact, and it is made up of negative contact and positive contact two parts, it is characterized in that:
A. described positive contact is made up of a contact 9 that is fixed on the conductive arm 11, and described contact 9 is one and touches the cambered shell that lobe 12 is formed by four curved surfaces, touches to be provided with between the lobe 12 at described curved surface and touches lobe engagement seam 13;
B. described negative contact is made up of copper yoke 2 and spring yokes 3 that are enclosed within the copper yoke 2 that a conductive arm 1,1 ' one of contact base that connects with conductive arm 1 are anchored on the contact base 1 '. and described spring yoke 3 is formed by frame-saw type body with by the 15 spring lobes of being located on the described frame-saw body 8 that constituted that crack, and has hole clipping 10 on spring lobe 8; Described spring lobe 8 is connected with negative touch flap 6 through hole clipping 10 by steel plate card 5; Described copper yoke 2 is the recessed people of a bottom integrated, and body portion touches the barrel shaped structure that lobe constitutes by four sheets, has at the afterbody of described barrel shaped structure and cracks 4, constitutes negative touch flap 6, and have hole clipping 5 ' on negative touch flap 6; Described spring yoke 3 is formed by frame-saw type body with by the 15 spring lobes of being located on the described frame-saw type body 8 that constituted that crack, and has hole clipping 10 on the spring lobe 8; Described spring lobe 8 is connected with negative touch flap 6 through hole clipping 10 by steel plate card 5.
C. the inner space shape of the barrel-like structure that is made of negative touch flap 6 on the exterior contour of the curved surface contact 9 of described positive contact and the negative contact is complementary.
The afterbody of the frame-saw type body of described spring yoke 3 also is provided with tail and sticks up 14.The afterbody of described negative touch flap 6 is little arc valgoid.
The utility model compare with existing double-arm high voltage isolation switch contact have that current-carrying capacity is big, electric property (contact resistance } less and stable advantage, the contact also has certain automatic adjustment performance.That the utility model also has is simple in structure, repair examination adjusts easily, is difficult for burning the characteristics of long service life because of heating.
Description of drawings: Fig. 1 is the structural representation of the double-arm high voltage isolation switch contact of prior art
Fig. 2 is contact and the formed bridge circuit figure of spring in the prior art
Fig. 3 is the structural representation of the double-arm high voltage isolation switch contact of the utility model
Fig. 4 is the structural representation of the utility model sun contact
Fig. 5 is the structural representation of the utility model negative contact
Fig. 6 is the structural representation of the utility model spring yoke
Fig. 7 is a user mode schematic diagram of the present utility model
Embodiment: as can be seen, double-arm isolating switch has two conductive arms from Fig. 1 to Fig. 7, and promptly a conductive arm combines with negative contact, and a conductive arm and positive contact are one.When isolating switch closes a floodgate, by transmission device both sides supporting insulator 16 is rotated in opposite directions, drive conductive arm 1 and conductive arm 11 and make horizontal hunting around insulator, negative contact 18 and positive contact 17 are drawn close mutually according to illustrated direction of rotation thereupon gradually, and it is crossing at certain point, this moment, the curved surface contact 9 of positive contact closed along with rotation in the negative touch flap 6 of people's negative contact, should make the curved surface of positive contact touch the interior cross section that lobe 12 axial outer cross sections are a bit larger tham the space that negative touch flap 6 constituted during making; It is the outer sectional area that the interior area of section of barrel shaped structure should be slightly less than the curved surface contact 9 of positive contact.Owing to there is the difference of two sectional areas, therefore when making positive contact precession negative contact, make the negative contact generation dilatating and deformable that is squeezed, but the metal non-deformability that has owing to the copper yoke 2 and the spring yoke 3 of negative contact has produced inside elastic force, and this elastic force will touch on the lobe 12 outer wall contacts wire by the curved surface that negative touch flap 6 is applied to positive contact.Touch lobe engagement seam 13 between the lobe 12 because the curved surface of positive contact touches, the curved surface of positive contact touches lobe 12 and also produces small distortion, in order to remedy the deficiency that negative touch flap 6 elasticity become, can increase the automatic adjustment performance that negative and positive are touched the lobe contact by trace simultaneously.
Negative contact forms a plurality of galvanic circles in parallel by the contact point a plurality of in parallel of each negative touch flap 6 with positive contact, and converges at contact base 1 ' by copper yoke 2 and locate. and in person who lives in exile's conductive arm 1, realize the monolithic conductive loop.Because contact point lines up the circular periphery contact wire, be surrounded on the outer contour of curved surface contact 9 of positive contact, therefore, the adverse effect that the utility model can avoid kelvin effect that load is transmitted.Good for negative contact and positive contact are partly coincide at the contact wheel profile, the cross sectional shape in the space that negative touch flap 6 is surrounded is necessary identical with the shape of the outline of the curved surface contact 9 of positive contact.This is shaped as square in the present embodiment.It can also be regular polygon or circle.When the yin, yang contact is incorporated into moment bite, the afterbody of its negative touch flap is little arc valgoid.
For copper yoke 2 and the negative touch flap 6 that guarantees negative contact has better elasticity and curable grip, in copper yoke 2, be with spring yoke 3; Spring lobe 8 on the spring rumble 3 gives strong support for the negative touch flap 6 of negative contact.For the strength of spring lobe 8 and negative touch flap 6 is concentrated, also for the position of relative fixed copper yoke 2 and spring yoke 3, the spy has hole clipping 10 on spring lobe 8 and negative touch flap 6, by steel plate card 5 and bayonet lock 7 spring lobe 8 and negative touch flap 6 are fixedly connected.It is elastic force for reinforcement spring yoke 3 that the tail of being located at the frame-saw type body afterbody of spring yoke 3 lifts up 14.Positive contact as shown in Figure 4, its curved surface touch the hollow conduction cavity that lobe surrounds, and have suitable elasticity for making positive contact, touch and leave Elastic Meshing seam 13 between the lobe, and contact closely links to each other with conductive arm.The sun contact also can be designed to seal hollow conducting cavity body structure.
Claims (3)
1. double-arm high voltage isolation switch contact, it is made up of negative contact and positive contact two parts, it is characterized in that:
A. described positive contact is made up of a conductive arm (11) and a contact (9) that is fixed on the conductive arm (11), described contact (9) is one and touches the cambered shell that lobe (12) is formed by four curved surfaces, touches to be provided with between the lobe (12) at described curved surface and touches lobe engagement seam (13);
B. described negative contact is made up of a conductive arm (1), a contact base (1 ') that connects with conductive arm (1), a copper yoke (2) and a spring yoke (3) that is enclosed within the copper yoke (2) that is anchored on the contact base (1 '), and described copper yoke (2) is recessed into for bottom integrated and body portion touches the barrel shaped structure that lobe constitutes by four sheets; The afterbody that touches lobe in described barrel shaped structure has crack (4), constitutes negative touch flap (6), and have hole clipping (5 ') on negative touch flap (6); Described spring yoke (3) is formed by frame-saw type body with by the spring lobe (8) that crack (15) be located on the described frame-saw type body are constituted, and has hole clipping (10) on spring lobe (8); Described spring lobe (8) is connected with negative touch flap (6) through hole clipping (10) by steel plate card (5);
C. the inner space shape of the barrel-like structure that is made of negative touch flap (6) on vertical exterior contour of the cambered shell of described positive contact and the contact is complementary.
2. double-arm high voltage isolation switch contact as claimed in claim 1 is characterized in that: the afterbody of the frame-saw type body of described spring yoke (3) also is provided with tail and sticks up (14).
3. double-arm high voltage isolation switch contact as claimed in claim 1 is characterized in that: the contact of described positive contact (9) can be the hollow cambered shell of a sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071516 CN2896493Y (en) | 2006-05-22 | 2006-05-22 | Double-armtype high-pressure isolation switch probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620071516 CN2896493Y (en) | 2006-05-22 | 2006-05-22 | Double-armtype high-pressure isolation switch probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896493Y true CN2896493Y (en) | 2007-05-02 |
Family
ID=38066066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620071516 Expired - Fee Related CN2896493Y (en) | 2006-05-22 | 2006-05-22 | Double-armtype high-pressure isolation switch probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896493Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231335A (en) * | 2011-06-03 | 2011-11-02 | 闫淼江 | Positive contactor of disconnecting switch and fracture component |
-
2006
- 2006-05-22 CN CN 200620071516 patent/CN2896493Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231335A (en) * | 2011-06-03 | 2011-11-02 | 闫淼江 | Positive contactor of disconnecting switch and fracture component |
| WO2012163272A1 (en) * | 2011-06-03 | 2012-12-06 | Yan Miaojiang | Male contact and break component for isolator 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 |
Granted publication date: 20070502 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |