CN202282273U - Three-station isolation grounding switch arc ignition device - Google Patents
Three-station isolation grounding switch arc ignition device Download PDFInfo
- Publication number
- CN202282273U CN202282273U CN2011204438498U CN201120443849U CN202282273U CN 202282273 U CN202282273 U CN 202282273U CN 2011204438498 U CN2011204438498 U CN 2011204438498U CN 201120443849 U CN201120443849 U CN 201120443849U CN 202282273 U CN202282273 U CN 202282273U
- Authority
- CN
- China
- Prior art keywords
- contact
- switch
- self
- isolation
- moving 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present utility model relates to a three-station isolation grounding switch arc ignition device. The device is mainly composed of a three-phase common tank shell body, a movable contact, an isolation switch static contact and a grounding switch static contact, and a self-elastic contact is arranged on the middle part inside the isolation switch static contact. A copper-tungsten alloy part is arranged on the head part of the self-elastic contact, and the head part of the self-elastic contact is spherical. The top end face of the self-elastic contact is in the same level with the outer end face of the isolation switch static contact. The device can be used for preventing arc from burning and damaging electric appliances, and the device has advantages of simple and compact structure, small volume, safety and reliability, good stability, low cost and long service life, etc.
Description
Technical field
The utility model belongs to a kind of three station isolation earthing switch arc-initiating devices.
Background technology
The fracture return voltage is very little when keeping apart circulation deeply concerned; Contact at a slow speed just can arc extinguishing; But electric current is bigger, and the arcing time is longer, for guaranteeing the good contact of high power switch two contacts; Usually in fixed contact, establish the watchband fingertip of several ring-types, but the electric arc that two contacts of high power switch produce when separating often burns the watchband fingertip.The general bigger more anti-burning of moving contact size, overtravel is bigger in addition again, and some do not have obvious influence to its operating characteristic the end scaling loss.But (an out of gear mesh end contact) is if adopt the strong watchband fingertip of through-current capability between isolation fracture; Must avoid electric arc directly to burn on the watchband fingertip; Because the very strong watchband fingertip of processing with fine copper of through-current capability is thin but also little non-refractory not only; The change that it provides the stainless steel substrates keel of contact pressure under action of high temperature, can cause material property for the watchband fingertip behind causes its flexible part or all of forfeiture, and then influences the contact and the useful life of watchband fingertip.
Summary of the invention
The purpose of the utility model is a kind of three station isolation earthing switch arc-initiating devices of design, but arc protection burns infringement electrical equipment, also has simple in structurely, and compact volume is little, and is safe and reliable, good stability, the low advantage with long service life of cost.
For this reason, the utility model mainly is made up of three-phase combined type housing, moving contact, static contact isolation switch and earthed switch fixed contact, and the middle part is provided with the self-reliance contact in static contact isolation switch.The head of described self-reliance contact is provided with copper-tungsten portion, and the head of self-reliance contact is spheroidal.Described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place.The limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in the three-phase combined type housing; Moving contact is positioned at the centre position of static contact isolation switch and earthed switch fixed contact, and operating mechanism control moving contact moves and independent respectively static contact isolation switch or the earthed switch fixed contact of contacting in control moving contact two ends between static contact isolation switch and earthed switch fixed contact.Described operating mechanism is positioned at the lower conductor upper end, is made up of guide groove, gear and tooth bar, and the moving contact cunning fits in the guide groove; Guide groove is fixed on the lower conductor upper end, and the moving contact lower end is provided with the tooth bar with the gear toe joint, and gear shaft is located in the guide groove; Gear is through the rack drives moving contact; The gear middle part is provided with the dwang that driven gear rotates, and dwang is driven by manual insulating bar, or is driven by control machinery.Described moving contact is provided with copper-tungsten portion with a corresponding end of static contact isolation switch, and the moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road of the head insertion that supplies the self-reliance contact.The said structure design has realized the purpose of the utility model.
But the utility model arc protection burns infringement electrical equipment, also has simple in structurely, and compact volume is little, and is safe and reliable, good stability, the low advantage with long service life of cost.
Description of drawings
Structural representation when Fig. 1 separates with static contact isolation switch for the moving contact of the utility model.
Structural representation when Fig. 2 joins for the moving contact of the utility model and static contact isolation switch.
Fig. 3 is the partial structurtes sketch map of the utility model.
Fig. 4 is the moving contact structure sketch map of the utility model.
Fig. 5 is the self-reliance structure of contact terminal sketch map of the utility model.
Embodiment
To shown in Figure 5, a kind of three station isolation earthing switch arc-initiating devices mainly are made up of three-phase combined type housing 6, moving contact 4, static contact isolation switch 7 and 9 of earthed switch fixed contacts like Fig. 1.The middle part is provided with self-reliance contact 3 in static contact isolation switch.The head of described self-reliance contact is provided with copper-tungsten portion 10, and the head of self-reliance contact is spheroidal.Described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place.The bottom face of self-reliance contact is fixed on diapire middle part in the static contact isolation switch.
The limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in the three-phase combined type housing.Moving contact is positioned at the centre position of static contact isolation switch and earthed switch fixed contact, and operating mechanism control moving contact moves and independent respectively static contact isolation switch or the earthed switch fixed contact of contacting in control moving contact two ends between static contact isolation switch and earthed switch fixed contact.Described operating mechanism is positioned at lower conductor 5 upper ends, is made up of guide groove 8, gear 13 and tooth bar 12.The moving contact cunning fits in the guide groove, and guide groove is fixed on the lower conductor upper end, and the moving contact lower end is provided with the tooth bar with the gear toe joint; Gear shaft is located in the guide groove; Gear is through the rack drives moving contact, and the gear middle part is provided with the dwang 14 that driven gear rotates, and dwang is driven by manual insulating bar; Or by the drive of control machinery, control machinery can be for receiving the motor of remote control control.Described moving contact is provided with copper-tungsten portion with a corresponding end of static contact isolation switch.The moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road 11 of the head insertion that supplies the self-reliance contact.
Upper conductor 1 upper end is fixed on the three-phase combined type housing on top, and the upper conductor lower end is static contact isolation switch fixedly.Lower conductor 5 lower ends are fixed on the three-phase combined type housing on top, and the lower conductor upper end is guide groove fixedly.
As shown in Figure 2, Fig. 2 is moving contact and static contact isolation switch the utility model normal operating conditions when joining, and is the switch closing position.Moving contact and earthed switch fixed contact break off, and moving contact and static contact isolation switch are connected.Electric current flows to lower conductor by upper conductor through static contact isolation switch.Moving contact can move to the centre position through gear drive at this moment.Position shown in Figure 1 is the moving contact centre position, and moving contact and static contact isolation switch break off, and moving contact and earthed switch fixed contact also break off simultaneously.This moment, moving contact can move to any any end to static contact isolation switch or earthed switch fixed contact.If moving contact and static contact isolation switch break off, moving contact and earthed switch fixed contact are connected, and are the disconnected gate positions of switch.Effectively protect maintainer's safety.This moment, moving contact can move to the centre position.
Obviously, when moving contact separated with static contact isolation switch, it is lonely that two separated part can produce electricity, and the electric arc of generation often burns the watchband fingertip, causes the switch infringement to scrap.The arc-striking structure of the utility model can effectively overcome above-mentioned defective.
During separation; Moving contact separates earlier with watchband fingertip 2 in the static contact isolation switch port; The self-reliance contact separates with moving contact at last, and the electric arc that produces like this will can be avoided the electric lonely ablation watchband fingertip and the moving contact that produce in the burning of the copper-tungsten position of self-reliance contact and moving contact.
In a word, but the utility model arc protection burns infringement electrical equipment, also has simple in structurely, and compact volume is little, and is safe and reliable, good stability, the low advantage with long service life of cost.
Claims (6)
1. a station isolation earthing switch arc-initiating device mainly is made up of three-phase combined type housing, moving contact, static contact isolation switch and earthed switch fixed contact, it is characterized in that: the middle part is provided with the self-reliance contact in static contact isolation switch.
2. by the described three station isolation earthing switch arc-initiating devices of claim 1, it is characterized in that: the head of described self-reliance contact is provided with copper-tungsten portion, and the head of self-reliance contact is spheroidal.
3. by the described three station isolation earthing switch arc-initiating devices of claim 1, it is characterized in that: described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place.
4. by the described three station isolation earthing switch arc-initiating devices of claim 1; It is characterized in that: the limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in the three-phase combined type housing; Moving contact is positioned at the centre position of static contact isolation switch and earthed switch fixed contact, and operating mechanism control moving contact moves and independent respectively static contact isolation switch or the earthed switch fixed contact of contacting in control moving contact two ends between static contact isolation switch and earthed switch fixed contact.
5. by the described three station isolation earthing switch arc-initiating devices of claim 4, it is characterized in that: described operating mechanism is positioned at the lower conductor upper end, is made up of guide groove, gear and tooth bar; The moving contact cunning fits in the guide groove, and guide groove is fixed on the lower conductor upper end, and the moving contact lower end is provided with the tooth bar with the gear toe joint; Gear shaft is located in the guide groove, and gear is through the rack drives moving contact, and the gear middle part is provided with the dwang that driven gear rotates; Dwang is driven by manual insulating bar, or is driven by control machinery.
6. by the described three station isolation earthing switch arc-initiating devices of claim 1; It is characterized in that: described moving contact is provided with copper-tungsten portion with a corresponding end of static contact isolation switch; The moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road of the head insertion that supplies the self-reliance contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204438498U CN202282273U (en) | 2011-11-11 | 2011-11-11 | Three-station isolation grounding switch arc ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204438498U CN202282273U (en) | 2011-11-11 | 2011-11-11 | Three-station isolation grounding switch arc ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282273U true CN202282273U (en) | 2012-06-20 |
Family
ID=46228430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204438498U Expired - Fee Related CN202282273U (en) | 2011-11-11 | 2011-11-11 | Three-station isolation grounding switch arc ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124095A (en) * | 2014-08-12 | 2014-10-29 | 深圳市森源电力技术有限公司 | Straight-moving type three-station isolation switch |
-
2011
- 2011-11-11 CN CN2011204438498U patent/CN202282273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124095A (en) * | 2014-08-12 | 2014-10-29 | 深圳市森源电力技术有限公司 | Straight-moving type three-station isolation switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102368445B (en) | Three-working-position isolation switch | |
| CN107622905B (en) | A kind of breaker structure | |
| CN101527220B (en) | Isolating switch with quick break function | |
| CN104022002B (en) | One cuts arc circuit breaker fast | |
| CN101923973B (en) | Auto transfer switch including cover | |
| CN109494132B (en) | Double-contact molded case circuit breaker | |
| CN201498869U (en) | Vacuum ring main unit | |
| CN201378523Y (en) | Novel flexible static arc contact | |
| CN211208317U (en) | Isolated vacuum circuit breaker | |
| CN202282273U (en) | Three-station isolation grounding switch arc ignition device | |
| CN201185139Y (en) | AC contactor | |
| CN203491177U (en) | Built-in isolating device of load switch on outdoor column | |
| CN204189695U (en) | Isolating switch fuse group | |
| CN202977287U (en) | Insulation pull bar structure | |
| CN201490070U (en) | Novel HK1 knife switch | |
| CN201378537Y (en) | Isolating switch with fast separating function | |
| CN202183332U (en) | Outdoor alternating current (AC) high-voltage switch | |
| CN103199453A (en) | Nitrogen insulation ring main unit | |
| CN220439479U (en) | Three-phase isolating switch | |
| CN101645375B (en) | Mechanical short circuit protection breaker | |
| CN219553546U (en) | Circuit breaker | |
| CN201780900U (en) | Rotary make-and-break mechanism with arc extinguishing function | |
| CN220400484U (en) | High-voltage electric switch | |
| CN202513110U (en) | Breaker capable of improving breaking capacity | |
| CN203013602U (en) | Directly-operated type earthing switch |
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: 20120620 Termination date: 20131111 |