CN105118729A - Vacuum relay - Google Patents
Vacuum relay Download PDFInfo
- Publication number
- CN105118729A CN105118729A CN201510510914.7A CN201510510914A CN105118729A CN 105118729 A CN105118729 A CN 105118729A CN 201510510914 A CN201510510914 A CN 201510510914A CN 105118729 A CN105118729 A CN 105118729A
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- Prior art keywords
- arc
- vacuum
- iron core
- driving shaft
- magnet
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides a vacuum relay comprising a top cover and pedestal. A vacuum chamber containing a ceramic housing is disposed in the top cover. A movable contact, a static contact, and a driving shaft are arranged in the vacuum chamber. One end of the static contact is located in the vacuum chamber. The other end of the static contact passes through the vacuum chamber and the top cover to reach exterior. An arc-extinguishing mechanism is arranged around the movable contact and the static contact. A magnet is disposed on the outer side of the ceramic housing and magnetizes the arc-extinguishing mechanism through the ceramic housing in order that arc generated when the static contact and the movable contact are separated is released by the arc-extinguishing mechanism. Each of two arc-extinguishing grids of the arc-extinguishing mechanism includes more than one arc-extinguishing sheet. When one arc-extinguishing sheet is included, the arc can be elongated under the effect of magnetic field force in order to be easy to extinguish. When the arc-extinguishing grid include multiple arc-extinguishing sheets, long arc can be cut into a string of short arc so as to be easy to extinguish. An air exhaust bar is provided in order to further guarantee vacuum degree in the vacuum chamber, thereby enabling the arc to fast disappear and improving the continuous disconnected performance of a circuit.
Description
Technical field
The present invention relates to vacuum relay correlative technology field, particularly a kind of vacuum relay.
Background technology
Along with the development of automatic technology, each association area is for ensureing Electrical Safety and power output, all more and more higher to the requirement of relay switched voltage and switch current.Traditional relay is by the restriction of self manufacturing technology, and its relay contact easily occurs that adhesive failure or continuous arcing burn contact system and make it to lose efficacy.For solving the problem, generally adopt vacuum relay at present.But existing vacuum relay generally takes magnet and magnetic conductive board to be placed on outside ceramic package, and arc-chute structure can not be installed additional in vacuum cavity because of the reason of material, the magnetic blowout function of magnetic fields outside ceramic package between dynamic/static contact is reduced, arc extinguishing effect can not be produced well.
Summary of the invention
The object of the present invention is to provide a kind of vacuum relay, to solve the problem that existing vacuum relay can not produce arc extinguishing effect well.
For achieving the above object, the invention provides a kind of vacuum relay, comprise ceramic package, top yoke and iron core sleeve pipe, described ceramic package, top yoke and iron core sleeve pipe are fixedly connected with and form airtight vacuum cavity, the top of described vacuum cavity is provided with fixed contact, described fixed contact one end is positioned at vacuum cavity inside, the other end extends to relay outside through the top of vacuum cavity, moving contact is provided with in described vacuum cavity, and be arranged in described iron core sleeve pipe for driving the driving shaft of described moving contact, arc-extinguishing mechanism is provided with around moving contact in described vacuum cavity and fixed contact, described moving contact connects to touching with fixed contact and is separated under the driving of driving shaft, described arc-extinguishing mechanism comprises two arc-chutes, each arc-chute comprises at least one arc quenching plate, two arc-chutes are positioned on two relative sides of vacuum cavity, described vacuum cavity two other relative side outside is respectively equipped with the first magnet and the second magnet, described first magnet and the second magnet act on described arc-extinguishing mechanism through vacuum cavity, arc quenching plate magnetization is distributed in vacuum cavity with making field homogeneity, the electric arc produced when being separated with fixed contact to make moving contact is discharged by described arc-extinguishing mechanism.
Preferably, when each arc-chute comprises an arc quenching plate, the sheet metal of described arc quenching plate to be cross section be п shape, two п shape arc quenching plates form arc-extinguishing mechanism relatively.
Preferably, when each arc-chute comprises the arc quenching plate of more than 2, described arc-chute comprises sheet metal and the connector of some п shapes, and described connector is insulation, and it is an arc-chute that described some arc quenching plates are connected by connector.
Preferably, described connector comprises and is connected and fixed bar and packing ring, described arc quenching plate is provided with connecting hole, the described bar that is connected and fixed is fixed on connector through described connecting hole to make arc quenching plate, being connected and fixed on bar between adjacent arc quenching plate is arranged with packing ring, and described packing ring is for preventing adjacent arc quenching plate contact.
Preferably, described connector is make through the metal material of insulation processing.
Preferably, described arc-chute is fixedly connected with fixed head, and described fixed head is fixed on the yoke of described top.
Preferably, it is characterized in that, described arc quenching plate is provided with air-breathing bar, and the material of described air-breathing bar is the material that can absorb gas.
Preferably, described ceramic package outside is provided with upper cover, outside two the relative sides of described ceramic package are provided with the screens of accommodating described first magnet and the second magnet, correspondingly, two sides that described upper cover is relative are provided with positioning strip, the holddown groove of described positioning strip for coordinating described screens to form accommodating and fixing described first magnet and the second magnet;
Wherein, described first magnet, be provided with shockproof sheet between the second magnet and described ceramic package, described shockproof sheet is sheet rubber or is made up of adhesive glue.
Preferably, described holddown groove is of a size of the full-size of accommodating described first magnet piece and the second magnet piece.
Preferably, the below of described top yoke is provided with base, described iron core sleeve pipe is positioned at described base, the bottom of described driving shaft is positioned at iron core sleeve pipe, the driving mechanism be connected with driving shaft is also comprised in base, described driving mechanism comprises dynamic iron core, static iron core and coil, described static iron core is fixed on the below of described top yoke, described dynamic iron core is positioned at the below of static iron core, described propeller shaft sleeve has a back-moving spring, the two ends of described back-moving spring respectively with described dynamic iron core, static iron core contacts, the top of described driving shaft is positioned at described ceramic arc suppressing cover, described moving contact is located at the top end of driving shaft, when the coil is energized, described dynamic iron core moves upward under the effect of magnetic force, drive moving contact to fixed contact touching position, when the coil is de-energized, described dynamic iron core resets under the effect of back-moving spring.
Preferably, the top of described driving shaft is positioned at described ceramic arc suppressing cover, this part driving shaft is arranged with upper spring seat, lower spring cup and stage clip, described upper spring seat has the first socket part, first end, described lower spring cup has the second socket part, the second end, first socket part and the second socket part nested against one another, described compression spring sleeve is outside described first socket part and the second socket part, and the two ends of stage clip offset with described first end and the second end respectively, described moving contact is sheathed on the driving shaft between described stage clip and described first end, described driving shaft drives described lower spring cup, stage clip, moving contact and upper spring seat move upward, when moving contact contacts with fixed contact, described stage clip compression is with the overtravel providing described moving contact, when moving contact and fixed contact are separated, described stage clip recovers shape to support described moving contact and upper spring seat, and provide initial kinetic energy to improve the separating rate of moving contact and fixed contact.
Preferably, described first end is provided with jump ring, and correspondingly, the top of described driving shaft is provided with draw-in groove, and described driving shaft is connected on described jump ring by draw-in groove.
Preferably, described first end is provided with pad, and described jump ring is positioned on described pad, by described pad and driving shaft clamping to be fixed on described driving shaft by described pad.
Preferably, the middle part of driving shaft is provided with a circle flange, and top contacts with lower spring cup, and during energising, the top of flange to be fastened on lower spring cup and to drive lower spring cup to move upward, thus drives spring, moving contact, upper spring seat to move upward.
Preferably, the below of described ceramic package is provided with connecting elements, correspondingly, described upper ceramic package is connected with upper yoke ferropexy by described connecting elements, described top yoke has a through hole, and described iron core sleeve pipe is connected with the upper yoke ferropexy around described through hole to make described ceramic package, top yoke and iron core sleeve pipe form vacuum cavity.
Vacuum relay provided by the invention, comprise upper cover and base, the vacuum cavity comprising ceramic package is provided with in upper cover, be provided with moving contact, fixed contact in vacuum cavity and drive the driving shaft of moving contact action, fixed contact one end is positioned at vacuum cavity inside, the other end extends to relay outside through after vacuum cavity and upper cover, arc-extinguishing mechanism is provided with around dynamic and static contact, ceramic package outside is provided with magnet piece, magnet piece acts on arc-extinguishing mechanism through ceramic package, and the electric arc produced when fixed contact and moving contact are separated is discharged by arc-extinguishing mechanism.And two of arc-extinguishing mechanism groups of arc-chutes comprise more than one arc quenching plate, arc-chute magnetizes through ceramic package by the magnet of ceramic package outside, and vacuum cavity internal magnetic field is evenly distributed in around dynamic and static contact more.When comprising an arc quenching plate, can under magnetic field force effect, electric arc be elongated thus be convenient to arc extinguishing, and when arc-chute comprises multiple arc quenching plate, long arc can be cut into a succession of short electric arc thus more be conducive to arc extinguishing by multiple mutually insulated and tool arc quenching plate at regular intervals.And the air-breathing bar that arc-chute is arranged, under the effect of the electric arc produced when dynamic and static contact is separated, to getter metals surface activation, make it have gettering ability, this can ensure the vacuum pure degree in vacuum cavity further, be convenient to electric arc rapidly disappear, the continuous disconnection performance of circuit is improved.
In addition, this magnet is arranged on ceramic outer, arc-extinguishing mechanism is arranged on the inner mode of pottery, and the magnetic on magnet can be made to be more evenly distributed in ceramic arcing chamber through ceramic shield, simultaneously magnet size can relative to ceramic shield arrange large as far as possible, improve magnetic field intensity.
Accompanying drawing explanation
The vacuum relay structural blast figure that Figure 1A provides for the preferred embodiment of the present invention one;
The vacuum relay arcing chamber structural representation that Figure 1B provides for the preferred embodiment of the present invention one;
The vacuum relay arc-extinguishing mechanism structural representation that Fig. 1 C provides for the preferred embodiment of the present invention one;
The integrally-built phantom of vacuum relay that Fig. 2 provides for the preferred embodiment of the present invention one;
The vacuum relay overall structure cutaway view that Fig. 3 provides for the preferred embodiment of the present invention one;
The vacuum relay upper cover part structure cutaway view that Fig. 4 provides for the preferred embodiment of the present invention one;
Fig. 5 A is the iron acting major part ideograph of magnetic of the preferred embodiment of the present invention one;
Fig. 5 B is the operate condition schematic diagram of electric arc under the magnet effect of the preferred embodiment of the present invention one;
The vacuum relay structural blast figure that Fig. 6 A provides for the preferred embodiment of the present invention two;
The arc-extinguishing mechanism structural representation of the vacuum relay that Fig. 6 B provides for the preferred embodiment of the present invention two;
Fig. 7 is the operate condition schematic diagram of electric arc under the magnet effect of the preferred embodiment of the present invention two.
Embodiment
For better the present invention being described, hereby with a preferred embodiment, and accompanying drawing is coordinated to elaborate to the present invention, specific as follows:
Embodiment one:
As shown in Figure 1 and Figure 2, the vacuum relay that the present embodiment provides, comprise upper cover 100, fixed contact 101a, 101b, ceramic package 103, arc-extinguishing mechanism 131, magnet 105, base 200, input/output connector 108, moving contact 109, base 200 is provided with top yoke 114.Wherein, ceramic package 103 is provided with connecting elements 106, and top yoke 114 is provided with a through hole, and the top yoke around this through hole is fixedly connected with an iron core sleeve pipe 205, iron core sleeve pipe 205 is positioned at the below of top yoke 114, and ceramic package 103 is positioned at the top of top yoke 114.Ceramic package 103 is fixedly connected with by connecting elements 106 with top yoke 114, thus makes ceramic package 103, top yoke 114 and iron core sleeve pipe 205 form an airtight vacuum cavity.Ceramic package 103 and top yoke 114 form ceramic chamber 107, are provided with arc-extinguishing mechanism 131, fixed contact 101a, 101b, moving contact 109 and driving shaft 116 top in ceramic chamber 107.Wherein, be also provided with outside link plate 102 above upper cover 100, outside link plate 102 is the rebound that fixed contact is connected with external power supply, in other preferred embodiments, also can not arrange this outside link plate.
Fixed contact 101a, 101b are arranged at the top of ceramic package 103, one end of fixed contact 101a, 101b is positioned at the inside of ceramic package 103 as fixed contact, the other end is successively through the outside extending to relay after two circular holes that the top of ceramic package 103 and upper cover 100 are arranged.As shown in Figure 3, moving contact 109 is positioned at ceramic package 103, arc-extinguishing mechanism 131 comprises two sizes and identical arc quenching plate 104a, the 104b of structure, wherein, arc quenching plate 104a, 104b are positioned on two relative sides of ceramic package 103, and arc quenching plate 104a, 104b are around moving contact 109 and be positioned at ceramic package 103.Arc quenching plate 104a, 104b are fixed on fixed head 110a, 110b respectively by rivet 119a, 119b and L-type connecting plate 118a, 118b, and fixed head 110a, 110b are fixed on top yoke 114.Certainly, in other preferred embodiments, arc quenching plate also can in other way as screw connection etc. be fixed on top yoke 114.
As shown in Figure 1A, 1C, in the present embodiment, the sheet metal of arc quenching plate 104a, 104b to be cross section be п shape, namely each arc quenching plate forms an arc-chute, and the arc-chute of two п shape sheet metals can form rectangular arc-extinguishing mechanism 131 relatively.Wherein, arc quenching plate 104a, 104b are provided with air-breathing bar 120, and the material of air-breathing bar 120 is the material that can absorb gas.With reference to figure 1, two other relative side, the outside of ceramic package 103 is respectively equipped with the first magnet 105a and the second magnet 105b, also namely, the first magnet 105a and the second magnet 105b is positioned at arc quenching plate 104a, 104b side, place, two gaps around the arc-extinguishing mechanism 104 formed.Moving contact 109 is connected with driving shaft 116, and driving shaft 116 moves up and down for driving moving contact 109.First magnet 105a and the second magnet 105b acts on arc-extinguishing mechanism 104 through ceramic package 103, and the electric arc produced when moving contact 109 is separated with fixed contact 101a, 101b is discharged by arc-extinguishing mechanism 104.
As shown in Figure 1A, 1B, relative two sides, the outside of ceramic package 103 are provided with the screens of accommodating first magnet 105a and the second magnet 105b, correspondingly, as shown in Figure 4, two sides that upper cover 100 is relative are provided with positioning strip 129, positioning strip 129 coordinates screens to form holddown groove, and the first magnet 105a and the second magnet 105b is placed in holddown groove and is fixed on ceramic package 103 by this holddown groove.And the first magnet 105a, between the second magnet 105b and ceramic package 103, being provided with shockproof sheet 121a, 121b, shockproof sheet 121a, 121b are sheet rubber or are made up of adhesive glue.Wherein, the size of holddown groove can be set to can the full-size of accommodating first magnet 105a and the second magnet 105b, and namely it can be arranged in the full-size that the holddown groove on ceramic package 103 can reach, to improve corresponding magnet piece size.
Refer again to Fig. 1, Fig. 2, Fig. 3, the below of top yoke 114 is provided with base 200, and iron core sleeve pipe 205 is positioned at base 200, and driving shaft 116 top is positioned at ceramic package 103 and its top is connected with moving contact 109, and bottom is positioned at iron core sleeve pipe 205.Be provided with driving mechanism in base 200, driving mechanism is connected with the bottom of driving shaft 116 for driving this driving shaft 116.Driving mechanism comprises dynamic iron core 203, static iron core 206 and coil 201, and static iron core 206 is fixed on the below of top yoke 114.Dynamic iron core 203 and static iron core 206 comprise centre bore 203a, the 206a of the bottom for accommodating driving shaft 116 respectively, and the part cover that driving shaft 116 is positioned at base 200 has a back-moving spring 202, centre bore 206a, 203a are stepped hole, the two ends of back-moving spring 202 are just positioned at the step place of two stepped holes, and the two ends of back-moving spring 202 are contacted with dynamic iron core 203, static iron core 206 respectively.Dynamic iron core 203, static iron core 206 are arranged in Sealed casing pipe 205, and Sealed casing pipe 205 and top yoke 114 are connected and fixed, and coordinate ceramic package 103 to form the vacuum cavity of a sealing.Sealed casing pipe 205 peripheral hardware has coil 201, and coil 201 is arranged in the space that bottom yoke 204 and top yoke 114 form.When coil 201 is energized, dynamic iron core 203 moves upward and compression reseting spring 202 under the effect of magnetic force, drive moving contact 109 to fixed contact 101a, 101b touching position, when coil 201 power-off, dynamic iron core 203 resets under the effect of back-moving spring, and moving contact 109 and fixed contact 101a, 101b are separated.
As Fig. 1,3, in ceramic chamber 107, driving shaft 116 is arranged with upper spring seat 115, lower spring cup 113 and stage clip 111, upper spring seat 115 has the first socket part 115a, first end 115b, and lower spring cup 113 has the second socket part 113a, the second end 113b.First socket part 115a and the second socket part 113a is nested against one another and be all enclosed within the top of driving shaft 116.Stage clip 111 is enclosed within the top of driving shaft 116, and the first socket part 115a and the second socket part 113a is enclosed within stage clip 111, and the two ends of stage clip 111 offset with first end 115b and the second end 113b respectively.Moving contact 109 has a through hole, and this through hole is sheathed on the driving shaft 116 between spring 11 and first end 115b.First end 115b is provided with pad 127, jump ring 117 on pad 127, and correspondingly, the top of driving shaft 116 is provided with the draw-in groove matched with jump ring, and driving shaft 116 is connected on jump ring 117 by draw-in groove to be fixed on driving shaft 116 by pad 127.
Wherein, the middle part of driving shaft 116 is provided with a circle flange 116a, under non-power status, flange 116a bottom contacts with static iron core 206, the top of flange 116a contacts with lower spring cup 113, during energising, the top of flange 116a to be fastened on lower spring cup 112 and to drive lower spring cup 113 to move upward, thus drive the moving contact 109 above stage clip 111, stage clip 111, upper spring seat 115 above moving contact 109 moves upward.When moving contact 109 contacts with fixed contact 101a, 101b, stage clip 111 is subject to lower spring cup 113 and upper spring seat 115 directly extruding force and compressing, the moving contact 109 that the compression of stage clip 111 can provide driving shaft 116 to drive has the overtravel meeting design, moving contact 109 can be made and compress between fixed contact 101a, 101b avoid contact separated and reduce to bounce simultaneously, thus ensure that switch contact is good.And when the coil is de-energized, the elastic force effect that driving shaft 116 is subject to back-moving spring 202 has certain initial kinetic energy and moves downward, moving contact 109 and fixed contact 101a, 101b are separated, and now, stage clip 111 reinstatement state also supports moving contact 109 and upper spring seat 115.In this process, pad 127 can effectively block upper spring seat 115, make upper spring seat 115 with driving shaft 116 move downward and together downward, thus leave fixed contact 101a, 101b with moving contact 109.
As shown in Fig. 5 A, 5B, first magnet 105a and the second magnet 105b sandwich moving contact 109 and fixed contact 101a (101b), the face that two magnet are relative while for N pole, another side be S pole, when fixed contact and moving contact contact, on contact, the direction of electric current I is fixed-direction.When moving contact 109 leaves fixed contact 101a (101b), the electric arc 301 of high pressure can be produced.Because the magnetic force of the first magnet 105a and the second magnet 105b acts on arc-extinguishing mechanism 104 through ceramic package 103, arc-extinguishing mechanism 104 is made to be magnetized and to produce stronger magnetic field, be distributed in around dynamic and static contact this field homogeneity, magnetic field force F acts on electric arc 301, is elongated and guides two sides, arc quenching plate place into.Simultaneously, electric arc 301a, 301b carry out activation to the surface of air-breathing bar 120 makes it have gettering ability, starts to absorb gas under the high temperature action of electric arc, ensures the vacuum degree in vacuum cavity, electric arc is discharged rapidly by arc-extinguishing mechanism 104, and the continuous disconnection performance of circuit is improved.
See Fig. 5 B, in the present embodiment, can arrange moving contact contact 302, fixed contact arranges fixed contact contact 303 on moving contact, being contacting and separating between moving contact and fixed contact is undertaken by this moving contact contact and fixed contact contact.In other preferred embodiments, also can not arrange moving contact contact and fixed contact contact, those skilled in the art can select according to actual needs.
Embodiment two:
Outside the vacuum relay that the present embodiment provides is distinguished to some extent divided by lower part and embodiment one, the execution mode of remainder is identical with embodiment one, and the present embodiment is specific as follows:
As shown in Fig. 6 A, 6B, in the present embodiment, arc-extinguishing mechanism 130 comprises two arc-chute structures, and each arc-chute structure includes the arc quenching plate 123 of one group of п shape, and those п shape arc quenching plates 123 are metallic material.Be connected and fixed by connector and become an arc-chute structure.Wherein, connector is made through the metal material of insulation processing.Particularly, connector comprises and is connected and fixed bar 124, packing ring 125 and hold-down nut 126, and it is the metal material that insulation processing is crossed.Be connected and fixed bar 124 as a whole through connecting into after the connecting hole that multiple arc quenching plate 123 is arranged successively.And being connected and fixed on bar 124 between every two adjacent arc quenching plates 123 is arranged with packing ring 125, packing ring 125 can prevent adjacent arc quenching plate from contacting.The end being connected and fixed bar 124 is tightened by hold-down nut 126 and is made one group of arc quenching plate 123 be connected fixed lever 124 to be connected and fixed.The arc-chute structure of its overall composition, insulate between each arc quenching plate (sheet metal).In the present embodiment, often organize arc quenching plate and be connected and fixed bar 124 by two and be fixed, it is as a whole to make it be firmly fixed into by arc quenching plate that those skilled in the art can arrange the quantity being connected and fixed bar 124 as required flexibly.And arc-chute is fixed on fixed head 110 by being connected and fixed bar 124, fixed head 110 is fixed on top yoke 114.Certainly, in other preferred embodiments, connector can also be set to other forms, as long as it meets and arc quenching plate can be connected into as a whole, tool is at regular intervals and insulate each other.
As shown in Figure 7, when the long arc 301 produced when this arc-extinguishing mechanism 130 makes dynamic and static contact be separated moves to rapidly arc-chute place under the effect of electric power and magnetic field force F, a series of short electric arc can be cut into by multiple arc quenching plates of arc-chute, thus accelerate the release of electric arc.
Those skilled in the art can select suitable mode to be fixed on the yoke of top by arc quenching plate as required, and choose other forms multiple arc quenching plate and connector are connected and composed an arc-chute entirety, and the present embodiment is not particularly limited to this.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art is in the technical scope that the present invention discloses; the distortion do the present invention or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (15)
1. a vacuum relay, it is characterized in that, comprise ceramic package, top yoke and iron core sleeve pipe, described ceramic package, top yoke and iron core sleeve pipe are fixedly connected with and form airtight vacuum cavity, the top of described vacuum cavity is provided with fixed contact, described fixed contact one end is positioned at vacuum cavity inside, the other end extends to relay outside through the top of vacuum cavity, moving contact is provided with in described vacuum cavity, and be arranged in described iron core sleeve pipe for driving the driving shaft of described moving contact, arc-extinguishing mechanism is provided with around moving contact in described vacuum cavity and fixed contact, described moving contact connects to touching with fixed contact and is separated under the driving of driving shaft, described arc-extinguishing mechanism comprises two arc-chutes, each arc-chute comprises at least one arc quenching plate, two arc-chutes are positioned on two relative sides of vacuum cavity, described vacuum cavity two other relative side outside is respectively equipped with the first magnet and the second magnet, described first magnet and the second magnet act on described arc-extinguishing mechanism through vacuum cavity, arc quenching plate magnetization is distributed in vacuum cavity with making field homogeneity, the electric arc produced when being separated with fixed contact to make moving contact is discharged by described arc-extinguishing mechanism.
2. vacuum relay according to claim 1, is characterized in that, when each arc-chute comprises an arc quenching plate, the sheet metal of described arc quenching plate to be cross section be п shape, two п shape arc quenching plates form arc-extinguishing mechanism relatively.
3. vacuum relay according to claim 1, it is characterized in that, when each arc-chute comprises the arc quenching plate of more than 2, described arc-chute comprises sheet metal and the connector of some п shapes, described connector is insulation, and it is an arc-chute that described some arc quenching plates are connected by connector.
4. vacuum relay according to claim 3, it is characterized in that, described connector comprises and is connected and fixed bar and packing ring, described arc quenching plate is provided with connecting hole, the described bar that is connected and fixed is fixed on connector through described connecting hole to make arc quenching plate, being connected and fixed on bar between adjacent arc quenching plate is arranged with packing ring, and described packing ring is for preventing adjacent arc quenching plate contact.
5. the vacuum relay according to claim 3 or 4, is characterized in that, described connector is make through the metal material of insulation processing.
6. the vacuum relay according to claim 1 or 2 or 3, it is characterized in that, described arc-chute is fixedly connected with fixed head, and described fixed head is fixed on the yoke of described top.
7. the vacuum relay according to claim 1 or 2 or 3 or 4, it is characterized in that, described arc quenching plate is provided with air-breathing bar, and the material of described air-breathing bar is the material that can absorb gas.
8. vacuum relay according to claim 1, it is characterized in that, described ceramic package outside is provided with upper cover, outside two the relative sides of described ceramic package are provided with the screens of accommodating described first magnet and the second magnet, correspondingly, two sides that described upper cover is relative are provided with positioning strip, the holddown groove of described positioning strip for coordinating described screens to form accommodating and fixing described first magnet and the second magnet;
Wherein, described first magnet, be provided with shockproof sheet between the second magnet and described ceramic package, described shockproof sheet is sheet rubber or is made up of adhesive glue.
9. vacuum relay according to claim 8, is characterized in that, described holddown groove is of a size of the full-size of accommodating described first magnet piece and the second magnet piece.
10. vacuum relay according to claim 1, it is characterized in that, the below of described top yoke is provided with base, described iron core sleeve pipe is positioned at described base, the bottom of described driving shaft is positioned at iron core sleeve pipe, the driving mechanism be connected with driving shaft is also comprised in base, described driving mechanism comprises dynamic iron core, static iron core and coil, described static iron core is fixed on the below of described top yoke, described dynamic iron core is positioned at the below of static iron core, described propeller shaft sleeve has a back-moving spring, the two ends of described back-moving spring respectively with described dynamic iron core, static iron core contacts, the top of described driving shaft is positioned at described ceramic arc suppressing cover, described moving contact is located at the top end of driving shaft, when the coil is energized, described dynamic iron core moves upward under the effect of magnetic force, drive moving contact to fixed contact touching position, when the coil is de-energized, described dynamic iron core resets under the effect of back-moving spring.
11. vacuum relays according to claim 1 or 10, it is characterized in that, the top of described driving shaft is positioned at described ceramic arc suppressing cover, this part driving shaft is arranged with upper spring seat, lower spring cup and stage clip, described upper spring seat has the first socket part, first end, described lower spring cup has the second socket part, the second end, first socket part and the second socket part nested against one another, described compression spring sleeve is outside described first socket part and the second socket part, and the two ends of stage clip offset with described first end and the second end respectively, described moving contact is sheathed on the driving shaft between described stage clip and described first end, described driving shaft drives described lower spring cup, stage clip, moving contact and upper spring seat move upward, when moving contact contacts with fixed contact, described stage clip compression is with the overtravel providing described moving contact, when moving contact and fixed contact are separated, described stage clip recovers shape to support described moving contact and upper spring seat, and provide initial kinetic energy to improve the separating rate of moving contact and fixed contact.
12. vacuum relays according to claim 11, is characterized in that, described first end is provided with jump ring, and correspondingly, the top of described driving shaft is provided with draw-in groove, and described driving shaft is connected on described jump ring by draw-in groove.
13. vacuum relays according to claim 12, is characterized in that, described first end is provided with pad, and described jump ring is positioned on described pad, by described pad and driving shaft clamping to be fixed on described driving shaft by described pad.
14. vacuum relays according to claim 11, it is characterized in that, the middle part of driving shaft is provided with a circle flange, top contacts with lower spring cup, during energising, the top of flange to be fastened on lower spring cup and to drive lower spring cup to move upward, thus drives spring, moving contact, upper spring seat to move upward.
15. vacuum relays according to claim 1, it is characterized in that, the below of described ceramic package is provided with connecting elements, correspondingly, described upper ceramic package is connected with upper yoke ferropexy by described connecting elements, described top yoke has a through hole, and described iron core sleeve pipe is connected with the upper yoke ferropexy around described through hole to make described ceramic package, top yoke and iron core sleeve pipe form vacuum cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510914.7A CN105118729B (en) | 2015-08-19 | 2015-08-19 | A kind of low-vacuum load-tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510914.7A CN105118729B (en) | 2015-08-19 | 2015-08-19 | A kind of low-vacuum load-tripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105118729A true CN105118729A (en) | 2015-12-02 |
| CN105118729B CN105118729B (en) | 2018-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510510914.7A Expired - Fee Related CN105118729B (en) | 2015-08-19 | 2015-08-19 | A kind of low-vacuum load-tripping device |
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| CN (1) | CN105118729B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601524A (en) * | 2017-01-22 | 2017-04-26 | 苏州安来强电子科技有限公司 | DC contactor arc extinguishing device |
| WO2017107455A1 (en) * | 2016-04-29 | 2017-06-29 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay moving core guide mechanism |
| WO2017185526A1 (en) * | 2016-04-29 | 2017-11-02 | 浙江英洛华新能源科技有限公司 | High-pressure direct-current relay |
| WO2018205870A1 (en) * | 2017-05-09 | 2018-11-15 | 浙江英洛华新能源科技有限公司 | Arc-blocking clapper relay |
| CN109216071A (en) * | 2018-11-19 | 2019-01-15 | 尼普顿电器（昆山）有限公司 | A kind of arc-control device |
| CN113410090A (en) * | 2021-06-24 | 2021-09-17 | 北京京东方真空电器有限责任公司 | Vacuum relay |
| CN113572928A (en) * | 2021-06-30 | 2021-10-29 | 新思考电机有限公司 | Drive assembly, camera module and electronic equipment |
| CN113782391A (en) * | 2020-06-09 | 2021-12-10 | 比亚迪股份有限公司 | Relay with a movable contact |
| CN114256029A (en) * | 2020-09-23 | 2022-03-29 | 比亚迪股份有限公司 | Relay with a movable contact |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4312241A1 (en) * | 2022-07-25 | 2024-01-31 | Tyco Electronics Componentes Electromecânicos Lda | High-voltage arc quenching systems and electrical switching devices comprising the same |
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| JPH01206521A (en) * | 1988-02-12 | 1989-08-18 | Matsushita Electric Works Ltd | Arc-extinguishing device |
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| CN103311022A (en) * | 2012-03-15 | 2013-09-18 | 欧姆龙株式会社 | Sealed contact device |
| CN104538255A (en) * | 2014-12-17 | 2015-04-22 | 贵州天义汽车电器有限公司 | High-voltage direct-current relay |
| CN205069499U (en) * | 2015-08-19 | 2016-03-02 | 上海瑞奇汽配有限公司 | Vaccum relay |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01206521A (en) * | 1988-02-12 | 1989-08-18 | Matsushita Electric Works Ltd | Arc-extinguishing device |
| CN2053786U (en) * | 1989-04-22 | 1990-02-28 | 湘潭市电器电瓷厂 | Narrow-gap large capacity plastic arc-suppression cover |
| CN103311022A (en) * | 2012-03-15 | 2013-09-18 | 欧姆龙株式会社 | Sealed contact device |
| CN104538255A (en) * | 2014-12-17 | 2015-04-22 | 贵州天义汽车电器有限公司 | High-voltage direct-current relay |
| CN205069499U (en) * | 2015-08-19 | 2016-03-02 | 上海瑞奇汽配有限公司 | Vaccum relay |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107455A1 (en) * | 2016-04-29 | 2017-06-29 | 浙江英洛华新能源科技有限公司 | High voltage direct current relay moving core guide mechanism |
| WO2017185526A1 (en) * | 2016-04-29 | 2017-11-02 | 浙江英洛华新能源科技有限公司 | High-pressure direct-current relay |
| CN106601524A (en) * | 2017-01-22 | 2017-04-26 | 苏州安来强电子科技有限公司 | DC contactor arc extinguishing device |
| WO2018205870A1 (en) * | 2017-05-09 | 2018-11-15 | 浙江英洛华新能源科技有限公司 | Arc-blocking clapper relay |
| CN109216071A (en) * | 2018-11-19 | 2019-01-15 | 尼普顿电器（昆山）有限公司 | A kind of arc-control device |
| CN113782391A (en) * | 2020-06-09 | 2021-12-10 | 比亚迪股份有限公司 | Relay with a movable contact |
| CN113782391B (en) * | 2020-06-09 | 2024-01-09 | 比亚迪股份有限公司 | Relay device |
| CN114256029A (en) * | 2020-09-23 | 2022-03-29 | 比亚迪股份有限公司 | Relay with a movable contact |
| CN113410090A (en) * | 2021-06-24 | 2021-09-17 | 北京京东方真空电器有限责任公司 | Vacuum relay |
| CN113572928A (en) * | 2021-06-30 | 2021-10-29 | 新思考电机有限公司 | Drive assembly, camera module and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN105118729B (en) | 2018-10-30 |
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Effective date of registration: 20200803 Address after: Room 601, building 4, Lane 839, Chenhua Road, Songjiang District, Shanghai, 201600 Patentee after: Nan Cunzan Address before: 201607 Shanghai Songjiang District City Maogang town Ye Xin Road No. 3215 building first Patentee before: SHANGHAI RUIQI AUTO PARTS Co.,Ltd. |
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