CN203536287U - Low-voltage permanent magnetic vacuum contactor - Google Patents
Low-voltage permanent magnetic vacuum contactor Download PDFInfo
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- CN203536287U CN203536287U CN201320743010.5U CN201320743010U CN203536287U CN 203536287 U CN203536287 U CN 203536287U CN 201320743010 U CN201320743010 U CN 201320743010U CN 203536287 U CN203536287 U CN 203536287U
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- permanent magnetic
- connecting lever
- voltage permanent
- low voltage
- vacuum
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Abstract
Provided is a low-voltage permanent magnetic vacuum contactor, comprising a low-voltage permanent magnetic mechanism, a vacuum arc-extinguishing chamber, and an S-shaped connecting lever. A movable contact and a static contact on an upper end and a lower end of the vacuum arc-extinguishing chamber are respectively connected with the vacuum arc-extinguishing chamber through a movable conductive clamp and a static conductive clamp and the movable contact and the static contact are led out. An armature is disposed on an end face of the connecting lever facing a side of the low-voltage permanent magnetic mechanism. A lower end of the connecting lever is connected with a base through a separating spring. An upper end of the connecting lever facing the vacuum arc-extinguishing chamber is provided with a pull rod. The pull rod is connected with the movable contact of the vacuum arc-extinguishing chamber through the contact spring. The low-voltage permanent magnetic mechanism comprises an energy storage control circuit, a yoke iron sheet, and a coil. The energy storage control circuit discharges electric energy on a certain direction of the coil, and adheres and releases the armature, so as to drive the connecting lever to generate switching-on and switching-off actuating forces on a same axial, thereby realizing switching-on or switching-off of the vacuum contactor. Switching-on and switching-off of the contactor are performed in the vacuum arc-extinguishing chamber, no arc light and others are generated when operating, and security is relatively high. The vacuum contactor is suitable for coal mine, chemical industry, textile and other industries. Operation noise is low, and life is long.
Description
Technical field
The utility model relates to the low-voltage circuit breaker technical field of electric power system, specifically a kind of low voltage permanent magnetic vacuum contactor.
Background technology
In existing low-voltage circuit breaker field, prevailing is to adopt air as cut-offfing and dielectric, air type probe of contactor is when closed and disjunction, because deciliter time is long, speed is slow, therefore, easily produces arcing, spray arc phenomenon, such contactor easily produces burn contact and causes accident, poor stability.Therefore the explosion-proof type circuit breaker of using as colliery at special dimension, it is unable to do what one wishes that the circuit breaker of air dielectric seems.In addition, the field of circuit breaker being had relatively high expectations at environment, as industries such as mining, chemical industry, metallurgy and weavings, the circuit breaker of traditional low pressure plastic shell type, arc control device may reduce because entering pollutant the break performance of circuit breaker, even produce arcing etc. and cause the generation of security incident, so low-voltage vacuum contactor causing people's concern and research, at increasing special occasions, in succession using in the future.
Utility model content
Technical problem to be solved in the utility model is to overcome in prior art air type probe of contactor easily to produce arcing, spray arc phenomenon, burn contact and cause accident, and the problems such as poor stability, provide a kind of low voltage permanent magnetic vacuum contactor.
The utility model is to address the above problem adopted technical scheme to be: a kind of low voltage permanent magnetic vacuum contactor, comprise the low voltage permanent magnetic mechanism being fixed on base, vacuum interrupter and control are closed a floodgate, the S-type connecting lever of separating brake action, the moving contact of described vacuum interrupter upper and lower side is pressed from both sides with quiet conductive clip and is connected and draws by moving conductive respectively with fixed contact, described connecting lever is provided with armature towards the end face of low voltage permanent magnetic mechanism one side, and the lower end of connecting lever is connected on base by tripping spring, connecting lever is provided with pull bar towards the upper end of vacuum interrupter, pull bar is connected with the moving contact of vacuum interrupter by touch spring, described low voltage permanent magnetic mechanism comprises energy storage control circuit, yoke plate and be arranged on the coil on yoke plate, coil and armature are oppositely arranged, energy storage control circuit discharges electric energy on the certain orientation of coil, absorption or release armature, and then drive connecting lever to produce combined floodgate or the separating brake action force that is positioned at same axial line, realize combined floodgate or the separating brake of vacuum contactor.
Described low voltage permanent magnetic mechanism also comprises auxiliary switch, and the switch contact of auxiliary switch and the lower end of connecting lever offset.
In described coil, be provided with iron core, permanent magnet and silicon steel sheet.
Described moving conductive folder and quiet conductive clip are all fixed on insulated leg.
The feed motion process of the utility model low voltage permanent magnetic vacuum contactor: energy storage control circuit is by abrupt release electric energy on coil certain orientation, because the effect of electromagnetic induction can be adsorbed armature movement, because the lower end of the connecting lever of armature lower end and S type links together, connecting lever upper end is connected with the touch spring of vacuum interrupter moving contact, the action force that adsorbs so armature drives the connecting lever upper end of S type to produce the downward pressure of vacuum interrupter moving contact simultaneously, vacuum interrupter moving contact, the quick close contact of fixed contact, vacuum contactor is implemented to close a floodgate, after closing a floodgate, energy storage control circuit cuts off the path to releasing winding, by the magnet adsorption armature in coil, keep "on" position.
The separating brake course of action of the utility model low voltage permanent magnetic vacuum contactor: the separating brake of contactor is similar to feed motion principle, energy storage control circuit institute's abrupt release electric energy opposite direction on coil certain orientation during just with feed motion process, therefore the connecting lever upper end of S type can produce vacuum interrupter moving contact release force making progress, while is due to the effect of touch spring and tripping spring, can overcome the confining force of "on" position, implement the separating brake of vacuum contactor.
Beneficial effect: it is indoor that the moving contact of low voltage permanent magnetic vacuum contactor is placed on vacuum extinction, the upper and lower end of vacuum interrupter is connected and is drawn by dynamic and static conductive clip respectively; Low voltage permanent magnetic mechanism relies on electromagnetic induction absorption armature by coil, drive connecting lever to produce and be positioned at same axial line splitting or integrating lock action force, vacuum contactor is implemented splitting or integrating lock, because electric current closes and cut-offs all and to carry out vacuum extinction is indoor in on-load situation, so produce without arc lights such as arcings during action, fail safe is higher; Compare and there is following advantage with traditional low pressure plastic casing type circuit breaker air switch: 1. compact conformation integrated level is high, and volume is little; During drop-out current without arcing phenomena, drop-out current is large, can reach 1000A, is applicable to causing existing due to electric arc light the industries such as colliery, chemical industry, weaving of safety factor; 3. adopt advanced permanent magnet mechanism, after closing a floodgate, by permanent magnet, keep, without power supply, energy-conserving and environment-protective; 4. operation noise is little, is less than 10 decibels, and the life-span is long, and electrical endurance can reach 50,000 times, and can reach 200,000 mechanical endurance, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control principle drawing of the present utility model.
Reference numeral: 1, connecting lever, 2, pull bar, 3, touch spring, 4, moving conductive folder, 5, vacuum interrupter, 6, insulated leg, 7, quiet conductive clip, 8, armature, 9, coil, 10, yoke plate, 11, tripping spring, 12, auxiliary switch, 13, base, U1, power switch, U2, separating brake power supply, N, power supply common port, Q1, closing coil, Q2, switching winding, SA, auxiliary switch contact.
Embodiment
As shown in Figure 1, a kind of low voltage permanent magnetic vacuum contactor, comprise the low voltage permanent magnetic mechanism being fixed on base 13, vacuum interrupter 5 and control are closed a floodgate, the S-type connecting lever 1 of separating brake action, the moving contact of described vacuum interrupter 5 upper and lower sides presss from both sides 4 by moving conductive respectively with fixed contact and is connected and draws with quiet conductive clip 7, moving conductive folder 4 and quiet conductive clip 7 are all fixed on insulated leg 6, described connecting lever 1 is provided with armature 8 towards the end face of low voltage permanent magnetic mechanism one side, and the lower end of connecting lever 1 is connected on base 13 by tripping spring 11, connecting lever 1 is provided with pull bar 2 towards the upper end of vacuum interrupter 5, pull bar 2 is connected with the moving contact of vacuum interrupter 5 by touch spring 3, described low voltage permanent magnetic mechanism comprises energy storage control circuit, yoke plate 10 and be arranged on the coil 9 on yoke plate 10, in coil 9, be provided with iron core, permanent magnet and silicon steel sheet, coil 9 is oppositely arranged with armature 8, energy storage control circuit discharges electric energy on the certain orientation of coil 9, absorption or release armature 8, and then drive connecting lever 1 to produce combined floodgate or the separating brake action force that is positioned at same axial line, realize combined floodgate or the separating brake of vacuum contactor.
Described low voltage permanent magnetic mechanism also comprises auxiliary switch 12, and the lower end of the switch contact of auxiliary switch 12 and connecting lever 1 offsets.As shown in Figure 2, be control principle drawing of the present utility model.
In the utility model, the required energy of the action of low voltage permanent magnetic mechanism is comprised of ac-dc converter circuit and energy storage control circuit; In coil 9, be provided with iron core, permanent magnet and silicon steel sheet, permanent magnet has enough magnetic force and iron core is remained on respectively to the final position of combined floodgate, separating brake, is the electromagnetic mechanism that a kind of permanent magnetism keeps.
Feed motion process of the present utility model: energy storage control circuit is by abrupt release electric energy on coil 9 certain orientations, effect due to electromagnetic induction, magnet in coil 9 and silicon steel sheet can adsorb armature 8 and move and produce a closed magnetic loop, because armature 8 lower ends and connecting lever 1 link together, connecting lever 1 upper end is connected with the touch spring 3 of vacuum interrupter 5 moving contacts, the action force that adsorbs so armature 8 drives connecting lever 1 upper end of S type to produce a downward pressure of the pull bar 2 of vacuum interrupter 5 simultaneously, pull bar 2 lower ends are connected with vacuum interrupter 5 moving contacts, vacuum interrupter 5 moving contacts, the quick close contact of fixed contact, vacuum contactor is implemented to close a floodgate.After closing a floodgate, energy storage control circuit cuts off the path that discharges electric energy to coil 9, by the magnet in coil 9 and silicon steel sheet absorption armature 8, produces closed magnetic circuit, keeps "on" position.
In the utility model, the effect of the touch spring 3 of pull bar 2 outsides: when vacuum contactor is implemented to close a floodgate, make two contacts of vacuum interrupter 5 moving contacts and fixed contact, reduce bounce time, and can increase certain excess of stroke, guarantee associated mechanical characteristic.
In the utility model; the effect of auxiliary switch 12: when vacuum contactor is implemented respectively combined floodgate, separating brake action; left and right action due to connecting lever 1 lower end of S type; thereby the left and right movement of the switch contact that makes auxiliary switch 12; drive two pairs of make and break contact actions of auxiliary switch 12 inside simultaneously; form closure and the disjunction of make and break contact, can, in two pairs of make and break contact access control loops, realize relevant protection or the input of position signalling.
Separating brake course of action of the present utility model: the separating brake action of low voltage permanent magnetic vacuum contactor is similar to feed motion principle, just with feed motion process in energy storage control circuit institute's abrupt release electric energy opposite direction on coil certain orientation, effect due to electromagnetic induction, coil 9 is interior can produce the thrust to armature 8, this thrust adds the release force of tripping spring 11, while closing a floodgate much larger than contactor, the confining force of magnet and silicon steel sheet absorption armature 8 in coil 9, therefore connecting lever 1 lower end separates and moves right with coil 9, connecting lever 1 upper end moves upward, by pull bar 2, produce the pulling force that vacuum interrupter 5 moving contacts are made progress simultaneously, vacuum interrupter 5 moving contacts, fixed contact is separated fast, implement the separating brake of vacuum circuit-breaker.After separating brake, energy storage control circuit cuts off to line, and 9 discharge the path of electric energy, and the outside tension force discharging by tripping spring 11 keeps gate-dividing state.Because the closing and cut-off all and carry out in vacuum interrupter 5 of electric current in on-load situation, so produce without arc lights such as arcings during action, fail safe is higher.
Claims (4)
1. a low voltage permanent magnetic vacuum contactor, comprise the low voltage permanent magnetic mechanism being fixed on base (13), vacuum interrupter (5) and control are closed a floodgate, the S-type connecting lever (1) of separating brake action, the moving contact of described vacuum interrupter (5) upper and lower side presss from both sides (4) by moving conductive respectively with fixed contact and is connected and draws with quiet conductive clip (7), it is characterized in that: described connecting lever (1) is provided with armature (8) towards the end face of low voltage permanent magnetic mechanism one side, and the lower end of connecting lever (1) is connected on base (13) by tripping spring (11), connecting lever (1) is provided with pull bar (2) towards the upper end of vacuum interrupter (5), pull bar (2) is connected with the moving contact of vacuum interrupter (5) by touch spring (3), described low voltage permanent magnetic mechanism comprises energy storage control circuit, yoke plate (10) and be arranged on the coil (9) on yoke plate (10), coil (9) is oppositely arranged with armature (8), energy storage control circuit discharges electric energy on the certain orientation of coil (9), absorption or release armature (8), and then drive connecting lever (1) to produce combined floodgate or the separating brake action force that is positioned at same axial line, realize combined floodgate or the separating brake of vacuum contactor.
2. a kind of low voltage permanent magnetic vacuum contactor according to claim 1, is characterized in that: described low voltage permanent magnetic mechanism also comprises auxiliary switch (12), and the lower end of the switch contact of auxiliary switch (12) and connecting lever (1) offsets.
3. a kind of low voltage permanent magnetic vacuum contactor according to claim 1, is characterized in that: described coil is provided with iron core, permanent magnet and silicon steel sheet in (9).
4. a kind of low voltage permanent magnetic vacuum contactor according to claim 1, is characterized in that: described moving conductive folder (4) and quiet conductive clip (7) are all fixed on insulated leg (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743010.5U CN203536287U (en) | 2013-11-22 | 2013-11-22 | Low-voltage permanent magnetic vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743010.5U CN203536287U (en) | 2013-11-22 | 2013-11-22 | Low-voltage permanent magnetic vacuum contactor |
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| Publication Number | Publication Date |
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| CN203536287U true CN203536287U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743010.5U Expired - Fee Related CN203536287U (en) | 2013-11-22 | 2013-11-22 | Low-voltage permanent magnetic vacuum contactor |
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| CN (1) | CN203536287U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681635A (en) * | 2017-09-29 | 2018-02-09 | 于士程 | Oil-well motor intelligent control protector |
| CN110211839A (en) * | 2019-07-09 | 2019-09-06 | 景德镇永鑫真空电器有限公司 | A kind of three-phase box type vacuum breaker |
| CN113394046A (en) * | 2021-06-25 | 2021-09-14 | 西电宝鸡电气有限公司 | Vacuum contactor for 3.6kV intermediate frequency (500Hz system) |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
-
2013
- 2013-11-22 CN CN201320743010.5U patent/CN203536287U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681635A (en) * | 2017-09-29 | 2018-02-09 | 于士程 | Oil-well motor intelligent control protector |
| CN107681635B (en) * | 2017-09-29 | 2023-07-07 | 大庆冠佳科技有限公司 | Intelligent control and protection device for oil well motor |
| CN110211839A (en) * | 2019-07-09 | 2019-09-06 | 景德镇永鑫真空电器有限公司 | A kind of three-phase box type vacuum breaker |
| CN113394046A (en) * | 2021-06-25 | 2021-09-14 | 西电宝鸡电气有限公司 | Vacuum contactor for 3.6kV intermediate frequency (500Hz system) |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20181122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |