CN110060904A - A kind of New Type Isolating Switch structure of contact terminal - Google Patents
A kind of New Type Isolating Switch structure of contact terminal Download PDFInfo
- Publication number
- CN110060904A CN110060904A CN201910493334.XA CN201910493334A CN110060904A CN 110060904 A CN110060904 A CN 110060904A CN 201910493334 A CN201910493334 A CN 201910493334A CN 110060904 A CN110060904 A CN 110060904A
- Authority
- CN
- China
- Prior art keywords
- contact
- insulating base
- quiet main
- static arc
- main contact
- 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.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 230000005684 electric field Effects 0.000 claims abstract description 8
- 238000013459 approach Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000010891 electric arc Methods 0.000 abstract description 3
- 238000012876 topography Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of New Type Isolating Switch structure of contact terminal, including insulating base, hollow arc shielding case, quiet main contact and static arc contact, hollow arc shielding case is connected with insulating base outer wall, and banking pin is equipped at the axle center of insulating base, and the right end of the banking pin is arranged with spring, one end of the spring is connected with insulating base, and the other end is connected to the end of static arc contact；The head of the static arc contact is domed, and the tail portion of static arc contact is equipped with the blind hole to match with banking pin；The left end of the insulating base is symmetrically arranged with multiple quiet main contact components.Electric arc can be limited between moving contact and static arc contact by the present invention in separating brake, simultaneously as static arc contact and shielding case topographies electric field approaches uniformity are distributed, the frequency and number of the appearance of repeated breakdown between moving contact and static arc contact can be reduced, VFTO is reduced and generates probability.
Description
Technical field
The present invention relates to the technical field of disconnecting switch, specially a kind of New Type Isolating Switch structure of contact terminal.
Background technique
It (such as is connect with disconnecting switch when the disconnecting switch of Cubicle Gas-Insulated Switchgear opens and closes small capacity current
On-off opens the shunt capacitor of unloaded bus (pipe) section or breaker) when, it may occur that disruptive discharge over the ground.It is close several
Year, by investigation worldwide, and to very quick transient overvoltage phenomenon --- as gas-insulated metal seals
The complexity for closing the phenomenon that generating when the disconnecting switch of switchgear fulfils this intrinsic function of capacitive current switching, there is depth
The understanding at quarter.Can thus be concluded that: correct disconnecting switch design is to avoiding generating disruptive discharge over the ground being vital.
Therefore, it is necessory to design a kind of New Type Isolating Switch structure of contact terminal to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of New Type Isolating Switch structure of contact terminals, have outside excellent anti-seismic performance, are convenient for
Installation and maintenance.
To achieve the goals above, the specific technical solution that the present invention uses is as follows:
A kind of New Type Isolating Switch structure of contact terminal, including insulating base；The upper and lower ends of the insulating base are symmetrically connected with screen
Cover is covered, the shielding case is hollow arc, is equipped with banking pin at the axle center of insulating base, the right end of the banking pin is arranged with bullet
One end of spring, the spring is connected with insulating base, and the other end is connected to the end of static arc contact；The head of the static arc contact
Domed, the tail portion of static arc contact is equipped with the blind hole to match with banking pin；The left end of the insulating base is symmetrically arranged with multiple quiet masters
Contact assembly, the quiet main contact component include limit plate, quiet main contact, V-type elastic slice and fastening screw；The limit plate
It is connected with the left side of insulating base, the tail portion of the quiet main contact is connected with the outer wall of insulating base, and the quiet main contact is set to
On limit plate and insulating base left end outer surface, the head of limit plate is equipped with buckle, and the middle part of quiet main contact is equipped with to match with buckle
Card slot；The head of the fastening screw passes through quiet main contact and is screwed on limit plate, and the tail portion of fastening screw also passes through V-type
Elastic slice is connected with the outer wall of quiet main contact；The moving contact and static arc contact is coaxially disposed.
In order to realize better isolation performance, it is preferable that the shielding case is approximate point of fitting electric field with static arc contact
The shape of cloth.
Preferably, the insulating base left end is equipped with convex buckle, and the quiet main contact upper end is recessed equipped with matching with convex buckle
Slot.
The utility model has the advantages that compared with prior art, when being in closing position, moving contact sufficiently connects the present invention with quiet main contact
Touching ensures rated current long-time through-current capability, while moving contact depresses static arc contact.
When being in open position, moving contact is separated with quiet main contact and static arc contact, and static arc contact and shielding case are same
Ensure electric fields uniform on one side, improves dielectric strength after separating brake.
In rigid separating brake, moving contact is first separated with quiet main contact, is separated after moving contact and static arc contact, it is ensured that in separating brake
Electric arc is limited between moving contact and static arc contact, simultaneously as static arc contact and shielding case topographies electric field approaches uniformity
Distribution, it is possible to reduce the frequency and number of the appearance of repeated breakdown between moving contact and static arc contact reduce VFTO and generate probability.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is rigid gate-dividing state schematic diagram；
Fig. 3 is gate-dividing state schematic diagram.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
The examples are only for explaining the invention, is not intended to limit the scope of the present invention..
Fig. 1-3 is please referred to,
A kind of New Type Isolating Switch structure of contact terminal, including insulating base 1；The upper and lower ends of the insulating base 1 are symmetrically connected with
Shielding case 2, the shielding case 2 are hollow arc, are equipped with banking pin 3 at the axle center of insulating base, the right end of the banking pin is arranged
There is spring 5, one end of the spring is connected with insulating base 1, and the other end is connected to the end of static arc contact 4；The quiet arc touching
First 4 head is domed, and the tail portion of static arc contact is equipped with the blind hole to match with banking pin；The left end of the insulating base 1 is symmetrically set
There are multiple quiet main contact components, the quiet main contact component includes limit plate 6, quiet main contact 7, V-type elastic slice 8 and fastening screw
9；The limit plate 6 is connected with the left side of insulating base 1, and the tail portion of the quiet main contact 7 is connected with the outer wall of insulating base 1,
The quiet main contact 7 is set on 1 left end outer surface of limit plate 6 and insulating base, and the head of limit plate 6 is equipped with buckle, quiet main touching
The middle part of head is equipped with the card slot to match with buckle；The head of the fastening screw 9 passes through quiet main contact and is screwed on limit plate,
The tail portion of fastening screw also passes through V-type elastic slice and is connected with the outer wall of quiet main contact；The moving contact 10 and static arc contact 4 is coaxial
Setting.
In order to realize better isolation performance, it is preferable that the shielding case is approximate point of fitting electric field with static arc contact
The shape of cloth.
Preferably, the insulating base left end is equipped with convex buckle, and the quiet main contact upper end is recessed equipped with matching with convex buckle
Slot.
When being in closing position, moving contact comes into full contact with quiet main contact ensures rated current long-time through-current capability,
Moving contact depresses static arc contact simultaneously.
When being in open position, moving contact is separated with quiet main contact and static arc contact, and static arc contact and shielding case are same
Ensure electric fields uniform on one side, improves dielectric strength after separating brake.
In rigid separating brake, moving contact is first separated with quiet main contact, is separated after moving contact and static arc contact, it is ensured that in separating brake
Electric arc is limited between moving contact and static arc contact, simultaneously as static arc contact and shielding case topographies electric field approaches uniformity
Distribution, it is possible to reduce the frequency and number of the appearance of repeated breakdown between moving contact and static arc contact reduce VFTO and generate probability.
The preferred embodiments of the disclosure and embodiment are explained in detail above in conjunction with attached drawing, but it is of the invention
It is not limited to the above embodiment and embodiment can also not take off within the knowledge of those skilled in the art
Various changes can be made under the premise of from present inventive concept.
Claims (3)
1. a kind of New Type Isolating Switch structure of contact terminal, which is characterized in that including insulating base and moving contact；Above and below the insulating base
Both ends are symmetrically connected with shielding case, and the shielding case is hollow arc, are equipped with banking pin, the banking pin at the axle center of insulating base
Right end be arranged with spring, one end of the spring is connected with insulating base, and the other end is connected to the end of static arc contact；Described
The head of static arc contact is domed, and the tail portion of static arc contact is equipped with the blind hole to match with banking pin；The left end pair of the insulating base
Claim to be equipped with multiple quiet main contact components, the quiet main contact component includes limit plate, quiet main contact, V-type elastic slice and fastening spiral shell
Nail；The limit plate is connected with the left side of insulating base, and the tail portion of the quiet main contact is connected with the outer wall of insulating base, described
Quiet main contact is set on limit plate and insulating base left end outer surface, and the head of limit plate is equipped with buckle, the middle part of quiet main contact
Equipped with the card slot to match with buckle；The head of the fastening screw passes through quiet main contact and is screwed on limit plate, fastening screw
Tail portion also pass through V-type elastic slice and be connected with the outer wall of quiet main contact；The moving contact and static arc contact is coaxially disposed.
2. a kind of New Type Isolating Switch structure of contact terminal according to claim 1, which is characterized in that the shielding case with it is quiet
Arcing contact is the shape for being bonded electric field APPROXIMATE DISTRIBUTION.
3. a kind of New Type Isolating Switch structure of contact terminal according to claim 1, which is characterized in that the insulating base left end
Equipped with convex buckle, the quiet main contact upper end is equipped with the groove to match with convex buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493334.XA CN110060904B (en) | 2019-06-06 | 2019-06-06 | Novel isolating switch contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493334.XA CN110060904B (en) | 2019-06-06 | 2019-06-06 | Novel isolating switch contact structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110060904A true CN110060904A (en) | 2019-07-26 |
| CN110060904B CN110060904B (en) | 2024-04-19 |
Family
ID=67325630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910493334.XA Active CN110060904B (en) | 2019-06-06 | 2019-06-06 | Novel isolating switch contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110060904B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN102403160A (en) * | 2011-11-29 | 2012-04-04 | 浙江开关厂有限公司 | Quick three working position isolation switch |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN104701109A (en) * | 2015-03-23 | 2015-06-10 | 乐清野岛机电有限公司 | Contact system of circuit breaker |
| CN205789759U (en) * | 2016-05-31 | 2016-12-07 | 浙江正泰电器股份有限公司 | The auxiliary contact mounting structure of A.C. contactor |
| CN209804526U (en) * | 2019-06-06 | 2019-12-17 | 现代重工(中国)电气有限公司 | Novel isolating switch contact structure |
-
2019
- 2019-06-06 CN CN201910493334.XA patent/CN110060904B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN102403160A (en) * | 2011-11-29 | 2012-04-04 | 浙江开关厂有限公司 | Quick three working position isolation switch |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN104701109A (en) * | 2015-03-23 | 2015-06-10 | 乐清野岛机电有限公司 | Contact system of circuit breaker |
| CN205789759U (en) * | 2016-05-31 | 2016-12-07 | 浙江正泰电器股份有限公司 | The auxiliary contact mounting structure of A.C. contactor |
| CN209804526U (en) * | 2019-06-06 | 2019-12-17 | 现代重工(中国)电气有限公司 | Novel isolating switch contact structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110060904B (en) | 2024-04-19 |
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