CN201112246Y - External pressure type sensing finger structure of outdoor high-voltage electrical apparatus ground switch - Google Patents
External pressure type sensing finger structure of outdoor high-voltage electrical apparatus ground switch Download PDFInfo
- Publication number
- CN201112246Y CN201112246Y CNU2007200280402U CN200720028040U CN201112246Y CN 201112246 Y CN201112246 Y CN 201112246Y CN U2007200280402 U CNU2007200280402 U CN U2007200280402U CN 200720028040 U CN200720028040 U CN 200720028040U CN 201112246 Y CN201112246 Y CN 201112246Y
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- voltage electrical
- switch
- movable contact
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Abstract
The utility model relates to an external style button contact structure used in the earthing switches of high voltage electric equipment such as outdoor three-phase AC high voltage isolation switches, bus earthing switches and open type combination electric equipment, etc. in a 110kv to 40.5kv power supply system, which comprises a movable contact and a static contact of an earthing switch. The movable contact is a contact base (2) that has contact sheets (3) arranged on the two sides of an electro-conductive rod (1); a spring shaft (4) is arranged on the two contact sheets and the two ends of the spring shaft (4) is provided with springs (5); the two ends of the springs (5) are provided with insulative pads (6). The static contact is a contact board (7) that is fixed at the lower end of a wiring base by an installation board (8) and is on the wiring base provided with a post insulator; a cushion (9) is arranged on the installation board (8). When the movable contact swings upwards to switch on with the static contact, the movable contact closely embeds with the contact board (7) by using the elasticity of the material, of which the movable contact (3) is made, and the elasticity of the springs (5), thus the switch being characterized by having a flow passage function, strong ability for sustaining the short circuit current, simple and compact structure, reliable use and being convenient for maintenance.
Description
One, technical field:
The utility model relates to a kind of novel fingertip structure of outdoor high-voltage electrical equipment earthed switch, earthy external-compression type fingertip structure in the high-tension electricity devices such as outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance in specifically a kind of 110kV-40.5kV power supply system.
Two, background technology:
In the last few years, along with China's rapid development of economy, infrastructure construction was advanced by leaps and bounds especially, and the operational reliability of the various high-voltage electrical equipments of electric power system is had higher requirement; And isolating switch is in the various device of electric power system, and its operational environment is worst, is exposed to fully in the atmospheric environment, is bearing the erosion of acid rain, salt fog, dust storm.Since in the existing 110kV-40.5kV power supply system in the high-tension electricity devices such as outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance earthed switch exist deficiency in the design, cause earthed switch reliability, bear the short circuit current ability; Often need to safeguard; Can not reach the isolating switch improvement transformation requirement that State Grid Corporation of China proposes.
Three, summary of the invention:
The purpose of this utility model is that the earthed switch for outdoor three-phase alternating current high voltage isolator, busbar grounding switch, open combined electri cappliance in the 110kV-40.5kV power supply system provides a kind of external-compression type fingertip structure, its through-current capability, bears short circuit current ability height; Simple and compact for structure, use reliably, be convenient to safeguard.
For achieving the above object, the technical scheme that the utility model is taked is: on the basis of the earthed switch of former High-Voltage Electrical Appliances, to first-class improvement of moving contact, stationary contact of earthed switch.Be moving contact, the fixed contact that the fingertip structure of earthed switch includes earthed switch.Described moving contact is that an end that is connected with fixed contact on conducting rod is fixed with touch base, the both sides of touch base are fixed with the contact that is parallel to each other respectively, lean on an end of touch base to be provided with the spring shaft that stretches out two contacts at two contacts, be provided with spring between the two ends of spring shaft and the contact outside, the two ends of spring are provided with insulation cushion; The fixed contact of earthed switch is the touch panel that is provided with in the lower end of post insulator upper end junction block between two contacts that are parallel to each other that can tightly embed moving contact, touch panel is fixed on the lower end of junction block by mounting panel, is provided with cushion pad in a side of terminal block.
Ground cutter operating mechanism in cutter powder operation device operatively, by ground cutter vertical links, space four-links, make on the moving contact of earthed switch and put, make the touch panel of two contacts that are parallel to each other and fixed contact chimeric, realize the connection of moving contact and fixed contact combined floodgate, the bottom then separating brake cut-offs.
In order to improve conductive capability, the contact of moving contact is copper coin cold moudling, curved.The welding that is fixed as of conducting rod and touch base is fixed.
Because the contact of moving contact adopts copper coin cold moudling, curved, have better elastic and electric conductivity, and spring is arranged in the arranged outside of contact, when contact and touch panel combined floodgate, strengthened clamping force, the electric conductivity after having guaranteed to close a floodgate; In addition be provided with cushion pad on the fixed contact, when pendulum closes a floodgate with fixed contact on moving contact, play cushioning effect, to alleviate moving contact to the impulsive force of fixed contact with avoid direct bump.During combined floodgate, outside being clamped in of contact and touch panel clamps by the elastic force of contact self, also set up spring, to strengthen its clamping force, still be referred to as external-compression type.Therefore, the utlity model has through-current capability, bear short circuit current ability height; Simple and compact for structure, use reliably, be convenient to characteristics such as maintenance.
Four, description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is that the M of Fig. 1 is to view.
Five, embodiment
Accompanying drawing is embodiment of the present utility model, and the fingertip structure of described earthed switch includes moving contact, the fixed contact of earthed switch.Moving contact is that an end that is connected with fixed contact on conducting rod 1 is fixed with touch base 2, the both sides of touch base 2 are fixed with the contact 3 that is parallel to each other respectively, lean on an end of touch base 2 to be provided with the spring shaft 4 that stretches out two contacts 3 at two contacts 3, be provided with spring 5 between the two ends of spring shaft 4 and contact 3 outsides, the two ends of spring 5 are provided with insulation cushion 6; Fixed contact is the touch panel 7 that is provided with in the lower end of post insulator upper end junction block between two contacts that are parallel to each other 3 that can tightly embed moving contact, and touch panel 7 is fixed on the lower end of junction block by mounting panel 8, is provided with cushion pad 9 in a side of mounting panel 8.
Ground cutter operating mechanism in cutter powder operation device operatively, by ground cutter vertical links, space four-links, make on the moving contact of earthed switch and put, make two contacts that are parallel to each other 3 chimeric with the touch panel 7 of fixed contact, realize the connection of moving contact and fixed contact combined floodgate, the bottom then separating brake cut-offs.
Because the contact 3 of moving contact adopts copper coin cold moudling, curved, have better elastic and electric conductivity, and spring 5 is arranged in the arranged outside of contact 3, when contact 3 closes a floodgate with touch panel 7, strengthened clamping force, the electric conductivity after having guaranteed to close a floodgate; In addition be provided with cushion pad 9 on the fixed contact, when pendulum closes a floodgate with fixed contact on moving contact, play cushioning effect, to alleviate moving contact to the impulsive force of fixed contact with avoid direct bump.During combined floodgate, spring 5 has also been set up in being clamped in outside elastic force by contact 3 self clamps of contact 3 and touch panel 7, has strengthened its clamping force, still be referred to as external-compression type.Therefore, the utlity model has through-current capability, bear short circuit current ability height; Simple and compact for structure, use reliably, be convenient to characteristics such as maintenance.
Claims (3)
1, a kind of external-compression type fingertip structure of outdoor high-voltage electrical equipment earthed switch, the moving contact, the fixed contact that include earthed switch, it is characterized in that described moving contact is to go up an end that is connected with fixed contact at conducting rod (1) to be fixed with touch base (2), the both sides of touch base (2) are fixed with the contact (3) that is parallel to each other respectively, lean on an end of touch base (2) to be provided with the spring shaft (4) that stretches out two contacts (3) at two contacts (3), be provided with spring (5) between the two ends of spring shaft (4) and contact (3) outside, the two ends of spring (5) are provided with insulation cushion (6); Fixed contact is the touch panel (7) that is provided with in the lower end of post insulator upper end junction block between two contacts that are parallel to each other (3) that can tightly embed moving contact, touch panel (7) is fixed on the lower end of junction block by mounting panel (8), is provided with cushion pad (9) in a side of mounting panel (8).
2, the external-compression type fingertip structure of outdoor high-voltage electrical equipment earthed switch according to claim 1, the contact (3) that it is characterized in that moving contact is copper coin cold moudling, curved.
3, the external-compression type fingertip structure of outdoor high-voltage electrical equipment earthed switch according to claim 1 is characterized in that the welding that is fixed as of conducting rod (1) and touch base (2) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200280402U CN201112246Y (en) | 2007-09-14 | 2007-09-14 | External pressure type sensing finger structure of outdoor high-voltage electrical apparatus ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200280402U CN201112246Y (en) | 2007-09-14 | 2007-09-14 | External pressure type sensing finger structure of outdoor high-voltage electrical apparatus ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112246Y true CN201112246Y (en) | 2008-09-10 |
Family
ID=39963991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200280402U Expired - Fee Related CN201112246Y (en) | 2007-09-14 | 2007-09-14 | External pressure type sensing finger structure of outdoor high-voltage electrical apparatus ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112246Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715958A (en) * | 2013-12-16 | 2015-06-17 | 西门子公司 | Earthing switch and disconnecting switch with earthing switch |
| CN108054047A (en) * | 2018-01-12 | 2018-05-18 | 国家电网公司 | A kind of Intelligent isolation switch |
-
2007
- 2007-09-14 CN CNU2007200280402U patent/CN201112246Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104715958A (en) * | 2013-12-16 | 2015-06-17 | 西门子公司 | Earthing switch and disconnecting switch with earthing switch |
| CN104715958B (en) * | 2013-12-16 | 2017-12-12 | 西门子公司 | A kind of earthed switch and its disconnecting switch |
| CN108054047A (en) * | 2018-01-12 | 2018-05-18 | 国家电网公司 | A kind of Intelligent isolation switch |
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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: 20080910 Termination date: 20091014 |