CN105590787A - Voltage-withstand low-voltage vacuum contactor - Google Patents
Voltage-withstand low-voltage vacuum contactor Download PDFInfo
- Publication number
- CN105590787A CN105590787A CN201410656979.8A CN201410656979A CN105590787A CN 105590787 A CN105590787 A CN 105590787A CN 201410656979 A CN201410656979 A CN 201410656979A CN 105590787 A CN105590787 A CN 105590787A
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- contact
- headpin
- baffle plate
- voltage
- copper bar
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a voltage-withstand low-voltage vacuum contactor comprising a hollow and sealed housing, a switcher, a contact member, and an insulated board. The switcher and the contact member are arranged in the housing. The switcher is connected with the contact member. The low-voltage vacuum contactor is large in creep distance, high in mechanical strength, and resistant to heat and impact, decreases overvoltage due to cutoff in a switching process, prolongs the service life of a vacuum switch tube, and is good in arc-extinguishing capability, good in voltage-withstand performance, high in operating frequency, long in service life, free of sprayed arc, small in size, light in weight, and long in maintenance period.
Description
Technical field
The present invention relates to contactor in power transmission technology field, be specifically related to a kind of pressure resistant type low-voltage vacuum contactor.
Background technology
The height of transmission voltage is the outstanding feature of technology of transmission of electricity development level. To the nineties in 20th century, the conventional transmission voltage in countries in the world has the EHV transmission of 330～765 kilovolts of 220 kilovolts and above high voltage power transmissions, 1000 kilovolts and above UHV transmission. In power system, natural primary energy is transformed into electric energy by power plant, to the power consumer power transmission in a distant place, in order to reduce electric energy loss and the line impedance pressure drop on transmission line of electricity, voltage need to be raise; In order to meet power consumer security needs, again by lower voltage, and distribute to each user, this just needs to raise and to reduce voltage, and can distribute the electric substation of electric energy. So electric substation is by the electrical device of its voltage of transformation, acceptance and distribution electric energy in power system, it is the intermediate link of contact power plant and power consumer, by electric substation, the grid contact of each electric pressure is got up, the effect of electric substation is voltage of transformation simultaneously, transmission and distribution electric energy. Electric substation is made up of power transformer, power distribution equipment, electrical secondary system and necessary auxiliary device. Transformer is the central apparatus of electric substation, transformer utilization be electromagnetic induction principle. Power distribution equipment is device for switching all in electric substation, the device that current－carrying conductor auxiliary equipment links together. Its effect is to accept and distribution electric energy. Power distribution equipment is mainly made up of bus, primary cut-out switch, reactor winding, transformer, power capacitor, arrester, high-tension fuse, secondary device and other necessary auxiliary equipment.
Carrying out in electric power conveying, a little less than traditional contactor puts out lonely ability, withstand voltage properties is low, and operating frequency is lower, and the life-span is short, often has electric arc to spray outward, and volume is large, Heavy Weight, maintenance cycle are shorter.
Summary of the invention
For above-mentioned prior art, the object of the present invention is to provide a kind of pressure resistant type low-voltage vacuum contactor, it is intended to solve existing contactor and puts out that lonely ability is weak, withstand voltage properties is low, operating frequency is lower, the life-span is short, often has that electric arc sprays outward, volume is large, Heavy Weight, the shorter technical problem of maintenance cycle.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of pressure resistant type low-voltage vacuum contactor, comprises and it is characterized in that the housing of inner hollow and sealing, also comprise clutch, contact component and insulation board, described clutch and contact component are arranged in housing, and described clutch connects this contact component; Described clutch comprises the baffle plate, tripping spring and the switching magnet that are J type, described tripping spring and switching magnet are set between described baffle plate and housing, tripping spring is arranged on switching magnet top, and tripping spring one end is connected with baffle plate, and the other end is connected with inner walls; Be provided with the rotating shaft that baffle plate is rotated around it away from the corner location of tripping spring at baffle plate; Described contact component comprises insulating part, touch spring and center line movable contact headpin and the stationary contact headpin on same straight line, described movable contact headpin is arranged on the below of stationary contact headpin, movable contact headpin and stationary contact headpin one end close to each other are respectively arranged with corresponding moving contact and static contact, and movable contact headpin connects insulating part away from one end of moving contact through described touch spring; Described baffle plate is fixedly connected with insulating part.
Further, described baffle plate is connected through a steady pin with insulating part, and steady pin is screw, as long as baffle plate and insulating part are fixed.
Further, described stationary contact headpin is connected with and draws copper bar away from one end of static contact, and on draw one end that copper bar connects described insulation board, the other end of insulation board is connected with down draws copper bar, and on draw copper bar and be arranged on down the top of drawing copper bar.
Further, described movable contact headpin is also provided with installing plate away from one end of moving contact, and described installing plate is arranged on touch spring top, this installing plate through a flexible circuit conductor with under draw steel and arrange and be connected.
Further, the described movable contact headpin containing moving contact one end is all arranged on a glass shell inside with the stationary contact headpin that contains static contact one end, and glass shell inside is provided with bellows and radome; This bellows is arranged on the outer wall of movable contact headpin, and this radome is arranged on the outer wall of stationary contact headpin, and glass shell, just as optimum selection mode, can also select other material part as the effect of Isolated Shield.
Operation principle of the present invention is:
In the time switching on control, switching magnet 3 closes up under the effect of electromagnetism, drive baffle plate to tripping spring 2 compression stresses, the termination of baffle plate 4 is by the rotation of rotating shaft 5, by upwards jack-up of insulating part 9, band moving contact spring 10 upwards compresses, by upwards jack-up of movable contact headpin 13, moving contact 14 is contacted with static contact 15, realize the work of contactor; Tripping spring 2 is compressed to behind certain position, in the time that the elastic force of tripping spring 2 is greater than electromagnetic force, tripping spring 2 returns to the process of origin-location, switching magnet 3 is disengaged, the termination of baffle plate 4 is by the rotation of rotating shaft 5, through a series of actions, moving contact 14 and static contact 15 are disengaged, contactor completes one action. Reduce the overvoltage causing owing to damming in interrupting process, improved the use electric life of vacuum switch tube, put out lonely ability strong, good pressure-resistant performance.
Compared with prior art, the present invention has following beneficial effect:
This low-voltage vacuum contactor creep age distance is large, mechanical strength is high, heat-resisting and shock-resistant, reduce the overvoltage causing owing to damming in interrupting process, improve the use electric life of vacuum switch tube, put out lonely ability strong, good pressure-resistant performance, operating frequency is higher, and the life-span is long, spray outward without electric arc, volume is little, lightweight, maintenance cycle is longer.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Reference numeral: 1 for housing, 2 for tripping spring, 3 for switching magnet, 4 for baffle plate, 5 for rotating shaft, 6 draw under being copper bar, 7 for flexible circuit conductor, 8 for steady pin, 9 for insulating part, 10 for touch spring, 11 for installing plate, 12 for bellows, 13 for movable contact headpin, 14 for moving contact, 15 for static contact, 16 for radome, 17 for stationary contact headpin, 18 for glass shell, 19 on to draw copper bar, 20 be insulation board.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the invention will be further described.
Embodiment:
As shown in Figure 1, pressure resistant type low-voltage vacuum contactor, comprise the housing of inner hollow and sealing, in described housing, be provided with clutch and contact component, clutch connects contact component, and the moving contact of contact component and the outer setting of static contact have radome, housing seal, realize vacuum state, completely cut off the possibility of airborne medium generation electric arc, ensured use safety.
Described clutch comprises the baffle plate, tripping spring and the switching magnet that are J type, described tripping spring and switching magnet are set between described baffle plate and housing, tripping spring is arranged on switching magnet top, and tripping spring one end is connected with baffle plate, and the other end is connected with inner walls; Be provided with the rotating shaft that baffle plate is rotated around it away from the corner location of tripping spring at baffle plate; And baffle plate can rotate around rotating shaft. Described contact component comprises insulating part, touch spring and center line movable contact headpin and the stationary contact headpin on same straight line, described movable contact headpin is arranged on the below of stationary contact headpin, movable contact headpin and stationary contact headpin one end close to each other are respectively arranged with corresponding moving contact and static contact, and movable contact headpin connects insulating part away from one end of moving contact through described touch spring; Described baffle plate is fixedly connected with insulating part. Described baffle plate is connected by steady pin with insulating part, and steady pin is fixed baffle plate and insulating part, in the time of action contact, keeps consistency.
Described stationary contact headpin is connected with and draws copper bar away from one end of static contact, and on draw one end that copper bar connects described insulation board, the other end of insulation board is connected with down draws copper bar, and on draw copper bar and be arranged on down the top of drawing copper bar. Under draw copper bar and on draw copper bar and all electric current can be drawn, being connected of convenient and miscellaneous part simultaneously. Under described, draw copper bar and be connected with flexible circuit conductor, flexible circuit conductor is connected with installing plate, and installing plate is connected with movable contact headpin, and described installing plate is arranged on touch spring top. By flexible circuit conductor, installing plate and contact component are formed to an entirety, structurally compacter.
The outside of the outside of described movable contact headpin and stationary contact headpin is provided with glass shell simultaneously, moving contact and static contact are all arranged on glass shell inside, glass shell inside is provided with bellows, and bellows is arranged on the outer wall of movable contact headpin, radome is arranged on the outer wall of stationary contact headpin, and radome is arranged on glass shell 18 inside. Bellows absorbs the heat that movable contact headpin produces at work, and compensate for displacement, can remain on same straight line with stationary contact headpin movable contact headpin, there will not be skew. Glass shell and radome can prevent the outer spray of electric arc simultaneously, ensure user's safety, have improved the use electric life of vacuum switch tube.
Claims (1)
1. a pressure resistant type low-voltage vacuum contactor, is characterized in that, comprises housing (1), clutch, contact component and the insulation board (20) of inner hollow and sealing, and described clutch and contact component are arranged in housing, and described clutch connects this contact component; Described clutch comprises the baffle plate (4), tripping spring (2) and the switching magnet (3) that are J type, described tripping spring and switching magnet are set between described baffle plate and housing, tripping spring is arranged on switching magnet top, and tripping spring one end is connected with baffle plate, and the other end is connected with inner walls; Be provided with the rotating shaft (5) that baffle plate is rotated around it away from the corner location of tripping spring at baffle plate; Described contact component comprises insulating part (9), touch spring (10) and center line movable contact headpin (13) and the stationary contact headpin (17) on same straight line, described movable contact headpin is arranged on the below of stationary contact headpin, movable contact headpin and stationary contact headpin one end close to each other are respectively arranged with corresponding moving contact (14) and static contact (15), and movable contact headpin connects insulating part away from one end of moving contact through described touch spring; Described baffle plate is fixedly connected with insulating part, described baffle plate is connected through a steady pin (8) with insulating part, steady pin is screw, described stationary contact headpin is connected with and draws copper bar (19) away from one end of static contact, and on draw one end that copper bar connects described insulation board, the other end of insulation board is connected with down draws copper bar (6), and on draw copper bar and be arranged on down the top of drawing copper bar; Described movable contact headpin is also provided with installing plate (11) away from one end of moving contact, and described installing plate is arranged on touch spring top, this installing plate through a flexible circuit conductor (7) with under draw steel and arrange and be connected; The described movable contact headpin containing moving contact one end is all arranged on a glass shell inside with the stationary contact headpin that contains static contact one end, and glass shell inside is provided with bellows (12) and radome (16); This bellows is arranged on the outer wall of movable contact headpin, and this radome is arranged on the outer wall of stationary contact headpin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656979.8A CN105590787A (en) | 2014-11-18 | 2014-11-18 | Voltage-withstand low-voltage vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656979.8A CN105590787A (en) | 2014-11-18 | 2014-11-18 | Voltage-withstand low-voltage vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105590787A true CN105590787A (en) | 2016-05-18 |
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ID=55930282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410656979.8A Pending CN105590787A (en) | 2014-11-18 | 2014-11-18 | Voltage-withstand low-voltage vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105590787A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516830A (en) * | 2017-08-25 | 2017-12-26 | 合肥智鼎电控自动化科技有限公司 | A kind of automatic fusing switching device of high and low voltage electric distribution equipment |
| CN111492453A (en) * | 2017-12-21 | 2020-08-04 | 西门子股份公司 | Drive rod with compensation element |
| CN111933477A (en) * | 2020-06-22 | 2020-11-13 | 华翔翔能科技股份有限公司 | Zero-flashover molded case circuit breaker |
| CN112768285A (en) * | 2019-03-06 | 2021-05-07 | 张亚西 | Anti-breakdown device for high-voltage vacuum switch |
-
2014
- 2014-11-18 CN CN201410656979.8A patent/CN105590787A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516830A (en) * | 2017-08-25 | 2017-12-26 | 合肥智鼎电控自动化科技有限公司 | A kind of automatic fusing switching device of high and low voltage electric distribution equipment |
| CN111492453A (en) * | 2017-12-21 | 2020-08-04 | 西门子股份公司 | Drive rod with compensation element |
| US11276991B2 (en) | 2017-12-21 | 2022-03-15 | Siemens Aktiengesellschaft | Control rod with compensation element |
| CN112768285A (en) * | 2019-03-06 | 2021-05-07 | 张亚西 | Anti-breakdown device for high-voltage vacuum switch |
| CN111933477A (en) * | 2020-06-22 | 2020-11-13 | 华翔翔能科技股份有限公司 | Zero-flashover molded case circuit breaker |
| CN111933477B (en) * | 2020-06-22 | 2022-08-26 | 华翔翔能科技股份有限公司 | Zero-flashover molded case circuit breaker |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160518 |