CN105609379A - Contactor capable of adjusting switch-off speed - Google Patents
Contactor capable of adjusting switch-off speed Download PDFInfo
- Publication number
- CN105609379A CN105609379A CN201610059681.8A CN201610059681A CN105609379A CN 105609379 A CN105609379 A CN 105609379A CN 201610059681 A CN201610059681 A CN 201610059681A CN 105609379 A CN105609379 A CN 105609379A
- Authority
- CN
- China
- Prior art keywords
- contactor
- closed housing
- switch
- electromagnet
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
- H01H2050/025—Details concerning sealing, e.g. sealing casing with resin containing inert or dielectric gasses, e.g. SF6, for arc prevention or arc extinction
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a contactor capable of adjusting switch-off speed. The contactor comprises a closed shell, and a splitting-integrating mechanism, a rotating rod, a switch-off spring, a contact spring, an insulating part and a closing electromagnet that are arranged in the closed shell, wherein the contact spring is connected with the bottom of the splitting-integrating mechanism; the bottom of the contact spring is connected with the insulating part; one end of the insulating part is also connected with the rotating rod; the closing electromagnet is also arranged between the rotating rod and the inner wall of the closed shell; and the closing electromagnet comprises multiple electromagnetic coils and iron cores that are distributed adjacently; the multiple electromagnetic coils are all mounted on the inner wall of the closed shell, and each electromagnetic coil is equipped with a switch; the multiple iron cores are mounted on the rotating rod and are opposite to the corresponding electromagnetic coils; the switch-off spring is also arranged between the rotating rod and the inner wall of the closed shell; and the closed shell is full of inert gas. Due to the structure, the quantity of the accessed electromagnetic coils can be adjusted by the closing electromagnet so as to change the magnitude of the magnetic force and to change the on/off speeds of the closing electromagnet; and in addition, the closed shell is filled with the inert gas, so that shut-off overvoltage protection for the contactor is realized.
Description
Technical field
The present invention relates to power contactor field, particularly, relate to the contactor that can regulate opening velocity.
Background technology
Electric power is the energy using electric energy as power, invents in 19 century 70s, and the invention of electric power and application have started industrialization climax for the second time. And the height of transmission voltage is the outstanding feature of technology of transmission of electricity development level, in the time that high-tension electricity is used, could use after conventionally will being converted into low tension to it. Carrying out in electric power conveying, need to use contactor, in use, making electromagnet cannot be according to the size adjustment divide-shut brake speed of drop-out current for traditional contactor, realize and in the time cut-offfing large electric current, adopt high speed separating brake, in the time cut-offfing little electric current, be adjusted to low speed separating brake. In Low current vacuum arc; in the time that alternating current amplitude drops to certain value; electric arc presents wild effect; when damming appears in the further decline of electric current; and the contactor using now can produce overvoltage in the time of cut-off loop; substantially exceed the dielectric level of contactor, damage contactor, need to carry out limiting protecting to overvoltage wherein.
Summary of the invention
Technical problem to be solved by this invention is to provide the contactor that can regulate opening velocity; the making electromagnet of this device can regulate access electromagnet coil number; thereby change magnetic force size; thereby change the speed that making electromagnet cut-offs; and this device is by pass into inert gas in closed housing, and the cut-off overvoltage of the tentaculum that achieves a butt joint is protected.
The present invention addresses the above problem adopted technical scheme: can regulate the contactor of opening velocity, comprise closed housing, be positioned at separating/closing mechanism, dwang, tripping spring, touch spring, insulating part and the making electromagnet of closed housing inside, described separating/closing mechanism bottom connects touch spring, and touch spring bottom connects insulating part, and insulating part one end is connection of rotating bar also, between described dwang and closed housing inwall, switching magnet is also set, switching magnet comprises multiple adjacent electromagnet coils of arranging and iron core, multiple electromagnet coils are installed on the inwall of closed housing and a switch are all installed on each electromagnet coil, and multiple iron cores are installed on dwang and are relative with corresponding electromagnet coil, between described dwang and closed housing inwall, also connect tripping spring, in described closed housing, be full of inert gas. the switch arranging on each electromagnet coil, can control the break-make of this electromagnet coil, thereby change the quantity of electromagnet coil in access contactor, thereby change the size of access making electromagnet magnetic force, when making electromagnet access magnetic force larger, the speed of cut-offfing is faster, when switching magnet access magnetic force less, the speed of cut-offfing is slower, in the time that speed is cut-off in needs change, only need the quantity of manual control switch open, can realize the size adjustment divide-shut brake speed according to drop-out current, in the time cut-offfing large electric current, adopt high speed separating brake, in the time cut-offfing little electric current, be adjusted to low speed separating brake. and in closed housing, be filled with inert gas, in the time carrying out sub-switching operation, can accelerate separating between contact and between making electromagnet, reduce the generation of cut-off overvoltage. holding back phenomenon is exactly that electric current is disconnected suddenly in larger, and at this time after the very high differentiate of the rate of change of electric current, voltage is just very high, and this voltage is exactly overvoltage.
Grounding terminal is also set on described closed housing. The part voltage of enclosure is introduced to ground, and the situation that further reduces cut-off overvoltage occurs.
The switch being arranged on each electromagnet coil is arranged on the outer wall of closed housing, the electromagnet coil that switch control is corresponding. To facilitate by the quantity of switch control access solenoid, thereby change fast magnetic force size.
Described inert gas is sulfur hexafluoride gas. Isolation effect is better.
Described separating/closing mechanism comprises static contact, ceramic case and moving contact, and static contact imports into from the top of ceramic case, and moving contact imports into from the bottom of ceramic case, between static contact and moving contact, has gap.
The top of described static contact also connects draws copper bar, and moving contact bottom also connects flexible conduit, flexible conduit with under draw copper bar and be connected, above draw copper bar with under draw copper bar and be also connected insulation board.
On described static contact, also connect radome, bellows is also set on moving contact. The effect of radome is, in the time of breaking current, the metal vapors diffusing out in the contact gap of condensing, contributes to blow-out, can also prevent from that metal vapors from splashing on insulation crust, to reduce its dielectric strength. Moving contact is connected with bellows with shell lower end, and moving contact can move up and down and can not leak gas.
To sum up, the invention has the beneficial effects as follows:
1, this device is by controlling the quantity that accesses electromagnet coil on making electromagnet, thereby magnetic force size on change making electromagnet, thereby change the speed that making electromagnet cut-offs, realize according to the size adjustment divide-shut brake speed of drop-out current, in the time cut-offfing large electric current, adopt high speed separating brake, in the time cut-offfing little electric current, be adjusted to low speed separating brake.
2, in closed housing, be filled with inert gas, in the time carrying out sub-switching operation, can accelerate separating between contact and between making electromagnet, reduce the generation of cut-off overvoltage.
3, grounding terminal is also set on closed housing, the part voltage of enclosure is introduced to ground, the situation that further reduces cut-off overvoltage occurs.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing: 1, closed housing; 2, tripping spring; 3, electromagnet coil; 4, switch; 5, dwang; 6, grounding terminal; 7, under, draw copper bar; 8, flexible conduit; 9, insulating part; 10, touch spring; 11, moving contact; 12, bellows; 13, radome; 14, static contact; 15, insulation board; 16, on, draw copper bar; 17, iron core; 18, ceramic case.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
As shown in Figure 1, the present invention includes closed housing 1, the separating/closing mechanism that is positioned at closed housing 1 inside, dwang 5, tripping spring 2, touch spring 10, insulating part 15 and making electromagnet; Described separating/closing mechanism bottom connects touch spring 10, and touch spring 10 bottoms connect insulating part 9, also connection of rotating bar 5 of insulating part 9 one end; Between described dwang 5 and closed housing 1 inwall, switching magnet is also set, switching magnet comprises multiple adjacent electromagnet coils of arranging 3 and unshakable in one's determination 17, multiple electromagnet coils are installed on the inwall of closed housing 1 and a switch 4 are all installed on each electromagnet coil 3, and multiple unshakable in one's determination 17 are installed on dwang 5 and relative with corresponding electromagnet coil 3; Between described dwang 5 and closed housing 1 inwall, also connect tripping spring 2; In described closed housing 1, be full of inert gas.
When press the switch of suitable number according to actual conditions, to control the quantity of access electromagnet coil. Static contact is used and is drawn copper bar and draw, and moving contact causes down and draws copper bar and draw with flexible circuit conductor. Moving contact is connected with dwang with insulator by conducting rod, touch spring. Under the effect of tripping spring power, dwang rotates to counter-clockwise direction, and it drives moving contact to move downward, and quiet, moving contact is separated. When combined floodgate, by the energising of combined floodgate solenoid, armature is adhesive to the right, and dwang rotates clockwise, by insulator, touch spring, moving contact is moved upward, with static contact closure.
The switch arranging on each electromagnet coil, can control the break-make of this electromagnet coil, thereby change the quantity of electromagnet coil in access contactor, thereby change the size of access making electromagnet magnetic force, when making electromagnet access magnetic force larger, the speed of cut-offfing is faster, when switching magnet access magnetic force less, the speed of cut-offfing is slower, in the time that speed is cut-off in needs change, only need the quantity of manual control switch open, can realize the size adjustment divide-shut brake speed according to drop-out current, in the time cut-offfing large electric current, adopt high speed separating brake, in the time cut-offfing little electric current, be adjusted to low speed separating brake. and in closed housing, be filled with inert gas, in the time carrying out sub-switching operation, can accelerate separating between contact and between making electromagnet, reduce the generation of cut-off overvoltage. holding back phenomenon is exactly that electric current is disconnected suddenly in larger, and at this time after the very high differentiate of the rate of change of electric current, voltage is just very high, and this voltage is exactly overvoltage.
Embodiment 2:
The present embodiment increases following technical characterictic on the basis of embodiment 1: grounding terminal 6 is also set on closed housing 1. The part voltage of enclosure is introduced to ground, and the situation that further reduces cut-off overvoltage occurs.
The switch 4 being arranged on each electromagnet coil 3 is arranged on the outer wall of closed housing 1, and switch 4 is controlled a corresponding electromagnet coil 3. To facilitate by the quantity of switch control access solenoid, thereby change fast magnetic force size.
Embodiment 3:
Preferably concrete structure is as follows on the basis of above-described embodiment for the present embodiment: inert gas is sulfur hexafluoride gas. Isolation effect is better.
Separating/closing mechanism comprises static contact 14, ceramic case 18 and moving contact 11, and static contact 14 imports into from the top of ceramic case 18, and moving contact 11 imports into from the bottom of ceramic case 18, between static contact 14 and moving contact 11, has gap.
The top of described static contact 14 also connects draws copper bar 16, and moving contact 11 bottoms also connect flexible conduit 8,
Flexible conduit 8 with under draw copper bar 7 and be connected, above draw copper bar 16 with under draw copper bar 7 and be also connected insulation board 15.
On static contact 14, also connect radome 13, bellows 12 is also set on moving contact 11. The effect of radome is, in the time of breaking current, the metal vapors diffusing out in the contact gap of condensing, contributes to blow-out, can also prevent from that metal vapors from splashing on insulation crust, to reduce its dielectric strength. Moving contact is connected with bellows with shell lower end, and moving contact can move up and down and can not leak gas.
As mentioned above, can realize preferably the present invention.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification, equivalent variations that every foundation technical spirit of the present invention is done above embodiment, within all falling into protection scope of the present invention.
Claims (7)
1. the contactor that can regulate opening velocity, is characterized in that, comprises closed housing (1), is positioned at closed housing (1) inner separating/closing mechanism, dwang (5), tripping spring (2), touch spring (10), insulating part (15) and making electromagnet; Described separating/closing mechanism bottom connects touch spring (10), and touch spring (10) bottom connects insulating part (9), also connection of rotating bar (5) of insulating part (9) one end; Between described dwang (5) and closed housing (1) inwall, switching magnet is also set, switching magnet comprises multiple adjacent electromagnet coils of arranging (3) and (17) unshakable in one's determination, multiple electromagnet coils are installed on the inwall of closed housing (1) and on each electromagnet coil (3), a switch (4) are all installed, and it is upper and relative with corresponding electromagnet coil (3) that multiple iron cores (17) are installed in dwang (5); Between described dwang (5) and closed housing (1) inwall, also connect tripping spring (2); Described closed housing is full of inert gas in (1).
2. the contactor that can regulate opening velocity according to claim 1, is characterized in that, grounding terminal (6) is also set on described closed housing (1).
3. the contactor that can regulate opening velocity according to claim 1, it is characterized in that, the switch (4) being arranged on each electromagnet coil (3) is arranged on the outer wall of closed housing (1), and switch (4) is controlled a corresponding electromagnet coil (3).
4. the contactor that can regulate opening velocity according to claim 1, is characterized in that, described inert gas is sulfur hexafluoride gas.
5. the contactor that can regulate opening velocity according to claim 1, it is characterized in that, described separating/closing mechanism comprises static contact (14), ceramic case (18) and moving contact (11), static contact (14) imports into from the top of ceramic case (18), moving contact (11) imports into from the bottom of ceramic case (18), between static contact (14) and moving contact (11), has gap.
6. the contactor that can regulate opening velocity according to claim 5, it is characterized in that, the top of described static contact (14) also connects draws copper bar (16), moving contact (11) bottom also connects flexible conduit (8), flexible conduit (8) with under draw copper bar (7) and be connected, above draw copper bar (16) with under draw copper bar (7) and be also connected insulation board (15).
7. the contactor that can regulate opening velocity according to claim 5, is characterized in that, also connects radome (13) on described static contact (14), and bellows (12) is also set on moving contact (11).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059681.8A CN105609379A (en) | 2016-01-29 | 2016-01-29 | Contactor capable of adjusting switch-off speed |
| CN201610636410.4A CN106252163A (en) | 2016-01-29 | 2016-08-05 | The catalyst of opening velocity can be regulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610059681.8A CN105609379A (en) | 2016-01-29 | 2016-01-29 | Contactor capable of adjusting switch-off speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105609379A true CN105609379A (en) | 2016-05-25 |
Family
ID=55989218
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610059681.8A Pending CN105609379A (en) | 2016-01-29 | 2016-01-29 | Contactor capable of adjusting switch-off speed |
| CN201610636410.4A Pending CN106252163A (en) | 2016-01-29 | 2016-08-05 | The catalyst of opening velocity can be regulated |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636410.4A Pending CN106252163A (en) | 2016-01-29 | 2016-08-05 | The catalyst of opening velocity can be regulated |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105609379A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111025140A (en) * | 2019-12-27 | 2020-04-17 | 国网山西省电力公司电力科学研究院 | Method for improving opening speed of breaker model based on spring assistance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484533A (en) * | 1987-09-26 | 1989-03-29 | Matsushita Electric Works Ltd | Sealing contact device |
| CN2676392Y (en) * | 2003-11-12 | 2005-02-02 | 吉林永大（集团）有限公司 | A permanent magnet low-voltage vacuum contactor |
| CN102184795A (en) * | 2011-04-12 | 2011-09-14 | 浙宝开关(杭州)有限公司 | Fast vacuum circuit breaker used for protecting high-power power electronic converter |
| CN202796755U (en) * | 2012-07-17 | 2013-03-13 | 保定市莱凯电器设备制造有限公司 | Enclosed inflatable contactor |
| CN204407241U (en) * | 2015-02-11 | 2015-06-17 | 相鹏 | New Low Voltage vacuum type contactor |
-
2016
- 2016-01-29 CN CN201610059681.8A patent/CN105609379A/en active Pending
- 2016-08-05 CN CN201610636410.4A patent/CN106252163A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN106252163A (en) | 2016-12-21 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |