CN101533737A - Startup relay with arc-extinguishing mechanism - Google Patents
Startup relay with arc-extinguishing mechanism Download PDFInfo
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- CN101533737A CN101533737A CN200910000622A CN200910000622A CN101533737A CN 101533737 A CN101533737 A CN 101533737A CN 200910000622 A CN200910000622 A CN 200910000622A CN 200910000622 A CN200910000622 A CN 200910000622A CN 101533737 A CN101533737 A CN 101533737A
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Abstract
The invention discloses a startup relay with an arc-extinguishing mechanism. The startup relay is provided with a shell, wherein the inside of the shell is provided with the arc-extinguishing mechanism; the arc-extinguishing mechanism comprises an arc-extinguishing element, two arc-initiating elements used for attracting electric arc and an earthed conducting wire used for connecting an earth wire; the arc-extinguishing element is a diode, a resister or a RC circuit; and the arc-initiating elements are electric conductors electrically connected with a power cord of the arc-extinguishing element. The startup relay has better arc-extinguishing effect and effectively ensures the service life of both moving contact and fixed contact of the relay.
Description
Technical field
The invention belongs to the relay construction design field, be specifically related to a kind of moving contact component and starting relay.
Background technology
The control circuit of diesel locomotive starter motor is often used starting relay (also being called auxiliary relay), is used to adopt little electric current to control the break-make of high-current circuit.
Patent documentation CN201126795Y discloses a kind of automobile starting motor auxiliary relay, the actuator that comprise in the enclosure coil magnetic circuit mechanism of setting, is driven by coil magnetic circuit mechanism and be fixed on a pair of connecting bolt on the switch cover; Contact pillar in the actuator, one end are fixed on the in-house iron core of coil magnetic circuit, and the other end passes the in-house yoke plate of coil magnetic circuit and installs moving contact, and is connected on the switch cover through a reseting pressuring spring; Be respectively equipped with a fixed contact on each connecting bolt, but and nationality conducting with moving contact contact; Its design feature is that described moving contact is a kind of floating type contact.Described floating type contact comprises and touches ring, insulating case, stage clip, insulation spacer and grip gasket; Insulating case is set in the upper end of contact pillar movably, and and iron core between have stage clip, touch ring and be supported on the convex shoulder of this insulating case and be insulated pad and grip gasket grips, and the end of grip gasket and reseting pressuring spring against.
There is following weak point in this kind starting relay: (1) lacks arc-extinguishing mechanism, and in long-term the use, electric arc is easily ablated and damaged dynamic and static contact, reduces its useful life, influences functional reliability and stability.(2) movable contact spring is in long-term the use, and the collision during easily because of the dynamic/static contact closure influences useful life.(3) used floating type structure of contact terminal is comparatively complicated, and parts are more, and manufacturing technology steps is loaded down with trivial details, and cost is higher.
Summary of the invention
The starting relay that the purpose of this invention is to provide a kind of better arc quenching effect with arc-extinguishing mechanism.
The technical scheme that realizes a kind of moving contact component of the object of the invention is: a kind of starting relay with arc-extinguishing mechanism has housing; Be provided with arc-extinguishing mechanism in the described housing, described arc-extinguishing mechanism comprises that striking element that blowout unit, two be used to attract electric arc is used for the earth lead that is connected with earth connection with one; Described blowout unit is diode, resistance or RC circuit; Described striking element is the electric conductor that is electrically connected with the power supply wiring of blowout unit.
In the technique scheme, also comprise coil block, moving contact component, fixed contact assembly and the back-moving spring of reseting elasticity is provided for moving contact component; Described fixed contact assembly comprises two binding posts being arranged on the housing, is fixed on two static contacts in the housing, and described binding post is electrically connected with described static contact; Described coil block comprises bobbin and the coil that is provided with slide opening; Described moving contact component comprises movable contact spring.
In the technique scheme, in described two striking elements, first striking element is electrically connected with the electric static contact that goes out in two static contacts; Second striking element is electrically connected with an end of earth lead, and near another static contact promptly advance electric static contact setting, also promptly and this advance between the electric static contact to leave the gap, make described second static contact and movable contact spring can attracted on described second striking element because of cut-offfing the electric arc that produces.
In the technique scheme, described housing comprises base and loam cake; Binding post in the described fixed contact assembly is to be fixed on the connection bolt that covers, and an end of described connection bolt exposes loam cake as wire connecting portion, and the other end stretches into loam cake and encloses in the cavity as the fixing location division of static contact; Described bobbin and coil all are fixedly installed in the described base; Moving iron core in the described moving contact component is arranged in the slide opening of described bobbin; Described movable contact spring and buffering spring expose the slide opening of described bobbin and are arranged in cavity that loam cake encloses; Described arc-extinguishing mechanism is fixedly installed on loam cake and encloses in the cavity.
In the technique scheme, described coil block comprises that also is fixed on a binding post that covers; Described base adopts electric conducting material to make, and described loam cake adopts insulating material to make; Described coil has two power supply wirings, and wherein one is electrically connected with described binding post, and another is electrically connected with described base; The other end of described earth lead is electrically connected with described base.
In the technique scheme, described moving contact component also comprises moving iron core, the backstay of fixedlying connected with moving iron core, is set in insulating sleeve and buffering spring on the backstay; Described movable contact spring is set on the described insulating sleeve; Described movable contact spring and described buffer spring set gradually along the direction away from described moving iron core; Described insulating sleeve is provided with a sliding area, and described movable contact spring can move back and forth in described sliding area under the effect of external force and under the reseting elasticity effect of described buffer spring; Described moving iron core is arranged in the slide opening of bobbin, described back-moving spring be arranged on described moving iron core the side away from described movable contact spring, an end of described back-moving spring is against on the housing, the other end is against on the described moving iron core; Can reciprocatingly move along the axis direction of described bobbin slide opening under the attraction force acts of described moving iron core when coil electricity and under the reseting elasticity effect of back-moving spring, reciprocatingly move along the axis direction of described bobbin slide opening thereby drive described movable contact spring; Described static contact and movable contact spring set gradually according to the direction away from described back-moving spring, described movable contact spring along with moving iron core in the process that moves near described back-moving spring direction, can with two static contact closures.
In the technique scheme, the middle part of described insulating sleeve is provided with a chute as sliding area; One end of described buffer spring props up described movable contact spring and movable contact spring is resisted against on the cell wall of the nearer end of the described moving iron core of distance of described chute, and the other end of described buffer spring is against on the end of the described moving iron core of a distance end far away of described insulating sleeve; Described movable contact spring can move back and forth in described chute under the effect of external force and under the reseting elasticity effect of described buffer spring.
In the technique scheme, described insulating sleeve is made up of locating part and block piece amalgamation, and described locating part and block piece are set on the described backstay successively according to the direction away from described moving iron core; Described locating part comprises base portion and the less extension of diameter that diameter is bigger, and described base portion and extension set gradually along the direction away from described moving iron core, thereby forms the basic configuration of stepped ramp type tubulose; Described base portion and extension junction form a step surface, and this step surface is promptly as the cell wall of the nearer end of the described moving iron core of the distance of described chute; Described block piece comprises limiting section and the bigger stop part of diameter that diameter is less, and described limiting section and stop part set gradually along the direction away from described moving iron core, thereby forms the basic configuration of stepped ramp type tubulose; Described movable contact spring is set on the described extension; Described buffer spring is enclosed within on the limiting section of the extension of described locating part and described block piece.
In the technique scheme, an end of described buffer spring is against on the described movable contact spring, and described movable contact spring is resisted against on the step surface of described locating part, and the other end of described buffer spring is against on the stop part of described block piece.
In the technique scheme, the side away from described movable contact spring of described moving iron core is provided with the groove that is used for spacing back-moving spring; One end of described back-moving spring is against on the diapire of described base, and the other end is against in this groove.
In the technique scheme, the impulsive force that is subjected to because of collision when the described external force of present embodiment is meant described movable contact spring and static contact closure.
The present invention has positive effect:
(1) in the starting relay of the present invention, be provided with arc-extinguishing mechanism in the described housing, described arc-extinguishing mechanism comprises blowout unit and two striking elements that are used to attract electric arc; Described blowout unit is diode, resistance or RC circuit; Described striking element is the electric conductor that is electrically connected with described blowout unit wiring.The electric arc that this structure produced in the time of can extinguishing dynamic/static contact fast and separate, the damage of having avoided dynamic/static contact to cause because of arc erosion has effectively guaranteed useful life of active and static contact.When especially selecting diode or resistance for use,, can be set directly in the housing, need not to increase the relay volume because diode or resistance volume are less as blowout unit.
(2) moving contact component among the present invention, its design feature is: comprise the insulating sleeve that is set on the backstay, be set in movable contact spring and buffering spring on the described insulating sleeve; Described movable contact spring and described buffer spring set gradually along the direction away from described moving iron core; Described insulating sleeve is provided with a sliding area, and described movable contact spring can move back and forth in described sliding area under the effect of external force and under the reseting elasticity effect of described buffer spring.The advantage of this structure is that movable contact spring is set directly on the moving iron core, and overall structure is integrated, and installation, maintenance is comparatively convenient, can also make its service behaviour comparatively stable; Also on moving iron core, be provided with buffer spring simultaneously, effectively reduce movable contact spring, guaranteed the useful life of movable contact spring because of the mechanical wear that the collision of active and static contact when closed causes.
(3) in the starting relay of the present invention, its moving contact component is owing to adopted the integral structure with buffer spring, make whole starting relay have that structure is comparatively simplified and buffering effect preferably, the mechanical wear that collision when effectively reducing movable contact spring because of the active and static contact closure causes has guaranteed whole useful life.
(4) in the starting relay of the present invention, described coil block comprises that is fixed on a binding post that covers; Described base adopts electric conducting material to make, and described loam cake adopts insulating material to make; Described coil has two power supply wirings, and wherein one is electrically connected with described binding post, and another is electrically connected with described base.This kind structure is compared with traditional relay, and a binding post only need be set on housing, adds base in the housing as another covert binding post, for coil provides power supply.
Description of drawings
Fig. 1 is a kind of perspective view of moving contact component of the present invention;
Fig. 2 be moving contact component shown in Figure 1 partly cut open structural representation;
Fig. 3 be shown in Figure 1 shown in the decomposition texture schematic diagram of moving contact component;
Fig. 4 is a kind of perspective view of starting relay of the present invention;
The perspective view that Fig. 5 is a starting relay shown in Figure 4 when another angle is observed;
The planar structure schematic diagram that Fig. 6 is a starting relay shown in Figure 4 when depression angle is observed;
Fig. 7 is the dissection schematic diagram of Fig. 6 along the A-A line;
Fig. 8 is the dissection schematic diagram of Fig. 6 along the B-B line;
Fig. 9 is a kind of structural representation that partly cuts open of starting relay shown in Figure 4 state of living in when coil blackout;
Figure 10 is starting relay shown in Figure 4 a kind of perspective view after removing loam cake;
Figure 11 is a kind of perspective view of arc-extinguishing mechanism in the starting relay shown in Figure 4.
Reference numeral is: moving iron core 1, backstay 2, insulating sleeve 3, sliding area 31, cell wall 311, end 32, locating part 33, base portion 331, extension 332, step surface 333, block piece 34, limiting section 341, stop part 342, movable contact spring 4, buffer spring 5, housing 6, base 61, loam cake 62, coil block 7, bobbin 71, coil 72, binding post 73, moving contact component 8, fixed contact assembly 9, binding post 91, wire connecting portion 911, location division 912, static contact 92, advance electric static contact 92A, go out electric static contact 92B, back-moving spring 10, arc-extinguishing mechanism 11, blowout unit 111, striking element 112, first striking element 112A, 113, the second striking elements of earth lead 112B, groove 20.
Embodiment
(embodiment 1, moving contact component)
Fig. 1 to Figure 10 has shown a kind of embodiment of moving contact component of the present invention, and wherein Fig. 1 is a kind of perspective view of first kind of structure of the present invention; The perspective view that Fig. 2 is the starting relay with arc-extinguishing mechanism shown in Figure 1 when another angle is observed; The structural representation that Fig. 3 is the starting relay with arc-extinguishing mechanism shown in Figure 1 when depression angle is observed; Fig. 4 is the dissection schematic diagram of Fig. 3 along the A-A line; Fig. 5 is the dissection schematic diagram of Fig. 3 along the B-B line; Fig. 6 is a kind of structural representation that partly cuts open with starting relay state of living in when coil blackout of arc-extinguishing mechanism shown in Figure 1; Fig. 7 is the starting relay a kind of perspective view after removing loam cake with arc-extinguishing mechanism shown in Figure 1; Fig. 8 is a kind of perspective view of arc-extinguishing mechanism in the starting relay with arc-extinguishing mechanism shown in Figure 7; Fig. 9 is a kind of perspective view of moving contact component in the starting relay with arc-extinguishing mechanism shown in Figure 1; Figure 10 be moving contact component shown in Figure 9 partly cut open structural representation; Figure 11 is the decomposition texture schematic diagram of moving contact component shown in Figure 9.
Present embodiment is a kind of starting relay with arc-extinguishing mechanism, sees Fig. 1 to Figure 11, comprises housing 6, coil block 7, moving contact component 8, fixed contact assembly 9 and the back-moving spring 10 of reseting elasticity is provided for moving contact component 8; Described fixed contact assembly 9 comprises two binding posts 91 being arranged on the housing 6, is fixed on two static contacts 92 in the housing 6, and described binding post 91 is electrically connected with described static contact 92; Described coil block 7 comprises bobbin 71 and the coil 72 that is provided with slide opening; Described moving contact component 8 comprises moving iron core 1, the backstay 2 of fixedlying connected with moving iron core 1, be set in insulating sleeve 3 on the backstay 2, be set in the movable contact spring 4 on the described insulating sleeve 3 and cushion spring 5; Described movable contact spring 4 and described buffer spring 5 set gradually along the direction away from described moving iron core 1; Described insulating sleeve 3 is provided with a sliding area 31, and described movable contact spring 4 can move back and forth in described sliding area 31 under the effect of external force and under the reseting elasticity effect of described buffer spring 5; Described moving iron core 1 is arranged in the slide opening of bobbin 71, described back-moving spring 10 be arranged on described moving iron core 1 the side away from described movable contact spring 4, an end of described back-moving spring 10 is against on the housing 6, the other end is against on the described moving iron core 1; Can reciprocatingly move along the axis direction of described bobbin 71 slide openings under the attraction force acts of described moving iron core 1 when coil 72 energising and under the reseting elasticity effect of back-moving spring 10, reciprocatingly move along the axis direction of described bobbin 71 slide openings thereby drive described movable contact spring 4; Described static contact 92 and movable contact spring 4 set gradually according to the direction away from described back-moving spring 10, described movable contact spring 4 along with moving iron core 1 in the process that moves near described back-moving spring 10 directions, can with two static contact 92 closures.
For the housing 6 of present embodiment, specifically, described housing 6 comprises base 61 that the employing electric conducting material is made and the loam cake 62 that adopts insulating material to make; Binding post 91 in the described fixed contact assembly 9 is the connection bolts that are fixed on the loam cake 62, and an end of described connection bolt exposes loam cake 62 as wire connecting portion 911, and the other end stretches into loam cake 62 and encloses in the cavity as the fixing location division 912 of static contact 92; Described bobbin 71 and coil 72 all are fixedly installed in the described base 61; Moving iron core 1 in the described moving contact component 8 is arranged in the slide opening of described bobbin 71, and the side away from described movable contact spring 4 of described moving iron core 1 is provided with the groove 20 that is used for spacing back-moving spring 10; One end of described back-moving spring 10 is against on the diapire of described base 61, and the other end is against in this groove 20; Described movable contact spring 4 and buffering spring 5 stretch out the slide opening of described bobbin 71 and are arranged in cavity that loam cake 62 encloses; Described arc-extinguishing mechanism 11 is fixedly installed on loam cake 62 and encloses in the cavity.
In order to avoid the arc erosion active and static contact as far as possible, be provided with arc-extinguishing mechanism 11 in the described housing 6, described arc-extinguishing mechanism comprises that striking element 112 that blowout unit 111, two be used to attract electric arc is used for the earth lead 113 that is connected with earth connection with one; Described blowout unit 111 is diode, resistance or RC circuit; Described striking element 112 is the electric conductors that are electrically connected with the power supply wiring of blowout unit 111.In described two striking elements 112, first striking element 112A is electrically connected with the electric static contact 92A that advances in two static contacts 92; Second striking element 112B is electrically connected with an end of earth lead 113, and be provided with near going out electric static contact 92B, also promptly and this go out between the electric static contact 92B to leave the gap, make described second static contact 92B and movable contact spring 4 can attracted on described second striking element 112B because of cut-offfing the electric arc that produces; The other end of described earth lead 113 is electrically connected with described base 61.
Described coil block 7 also comprises a binding post 73 that is fixed on the loam cake 62; Described coil 72 has two power supply wirings, and wherein one is electrically connected with described binding post 73, and another directly is electrically connected with described base 61, also is that described base 61 can be directly uses as a binding post of coil 72.
Side away from described movable contact spring 4 of described moving iron core 1 is provided with the groove 20 that is used for spacing back-moving spring 10.
Described insulating sleeve 3 is made up of locating part 33 and block piece 34 amalgamations, and described locating part 33 and block piece 34 are set on the described backstay 2 successively according to the direction away from described moving iron core 1.
Described locating part 33 comprises diameter bigger base portion 331 and the less extension 332 of diameter, and described base portion 331 and extension 332 set gradually along the direction away from described moving iron core 1, thereby forms the basic configuration of stepped ramp type tubulose.Described block piece 34 comprises diameter less limiting section 341 and the bigger stop part 342 of diameter, and described limiting section 341 and stop part 342 set gradually along the direction away from described moving iron core 1, thereby forms the basic configuration of stepped ramp type tubulose.Described stop part 342 is as the end 32 of described moving iron core 1 end far away of the distance of described insulating sleeve 3.
Described insulating sleeve 3 forms a chute at extension 332 places of locating part 33, as above-mentioned sliding area 31; Described base portion 331 and extension 332 junctions form a step surface 333, and this step surface 333 is promptly as the cell wall 311 of the described moving iron core 1 nearer end of the distance of described chute.Described movable contact spring 4 is set on the described extension 332.One end of described buffer spring 5 props up described movable contact spring 4 and movable contact spring 4 is resisted against on the cell wall 311 of the described moving iron core 1 nearer end of distance of described chute, and the other end of described buffer spring 5 is against on the end 32 of described moving iron core 1 end far away of distance of described insulating sleeve 3; Described movable contact spring 4 can move back and forth in described chute under the effect of external force and under the reseting elasticity effect of described buffer spring 5.
For present embodiment, specifically: described buffer spring 5 is enclosed within on the limiting section 341 of the extension 332 of described locating part 33 and described block piece 34; One end of described buffer spring 5 is against on the described movable contact spring 4, and described movable contact spring 4 is resisted against on the step surface 333 of described locating part 33, and the other end of described buffer spring 5 is against on the stop part 342 of described block piece 34.
The impulsive force that is subjected to because of collision when the described external force of present embodiment is meant described movable contact spring and static contact closure.
Present embodiment has the following advantages:
(1) in the present embodiment, described moving contact component is owing to adopted the integral structure with buffer spring, make whole starting relay have that structure is comparatively simplified and buffering effect preferably, the mechanical wear that collision when effectively reducing movable contact spring because of the active and static contact closure causes has guaranteed whole useful life.
(2) in the present embodiment, be provided with arc-extinguishing mechanism in the described housing, described arc-extinguishing mechanism comprises blowout unit and two striking elements that are used to attract electric arc; Described blowout unit is diode, resistance or RC circuit; Described striking element is the electric conductor that is electrically connected with described blowout unit wiring.The electric arc that this structure produced in the time of can extinguishing dynamic/static contact fast and separate, the damage of having avoided dynamic/static contact to cause because of arc erosion has effectively guaranteed useful life of active and static contact.When especially selecting diode or resistance for use,, can be set directly in the housing, need not to increase the relay volume because diode or resistance volume are less as blowout unit.
(4) in the present embodiment, described coil block comprises that is fixed on a binding post that covers; Described base adopts electric conducting material to make, and described loam cake adopts insulating material to make; Described coil has two power supply wirings, and wherein one is electrically connected with described binding post, and another is electrically connected with described base.This kind structure is compared with traditional relay, only a binding post need be set on housing, adds base in the housing as another covert binding post, for coil provides power supply.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (10)
1, a kind of starting relay with arc-extinguishing mechanism has housing (6); It is characterized in that:
Be provided with arc-extinguishing mechanism (11) in the described housing (6), described arc-extinguishing mechanism comprises that striking element (112) that blowout unit (111), two be used to attract electric arc is used for the earth lead (113) that is connected with earth connection with one; Described blowout unit (111) is diode, resistance or RC circuit; Described striking element (112) is the electric conductor that is electrically connected with the power supply wiring of blowout unit (111).
2, the starting relay with arc-extinguishing mechanism according to claim 1 is characterized in that: also comprise coil block (7), moving contact component (8), fixed contact assembly (9) and the back-moving spring (10) of reseting elasticity is provided for moving contact component (8); Described fixed contact assembly (9) comprises two binding posts (91) of being arranged on the housing (6), is fixed on two static contacts (92) in the housing (6), and described binding post (91) is electrically connected with described static contact (92); Described coil block (7) comprises bobbin (71) and the coil (72) that is provided with slide opening; Described moving contact component (8) comprises movable contact spring (4).
3, the starting relay with arc-extinguishing mechanism according to claim 2 is characterized in that: in described two striking elements (112), first striking element (112A) is electrically connected with the electric static contact (92A) that goes out in two static contacts (92); Second striking element (112B) is electrically connected with an end of earth lead (113), and near another static contact promptly advance electric static contact (92B) be provided with, also promptly and this advance between the electric static contact (92B) to leave the gap, make described second static contact (92B) and movable contact spring (4) can attracted on described second striking element (112B) because of cut-offfing the electric arc that produces.
4, the starting relay with arc-extinguishing mechanism according to claim 3 is characterized in that: described housing (6) comprises base (61) and loam cake (62); Binding post (91) in the described fixed contact assembly (9) is the connection bolt that is fixed on the loam cake (62), one end of described connection bolt exposes loam cake (62) as wire connecting portion (911), and the other end stretches into loam cake (62) and encloses in the cavity as the fixing location division (912) of static contact (92); Described bobbin (71) and coil (72) all are fixedly installed in the described base (61); Moving iron core (1) in the described moving contact component (8) is arranged in the slide opening of described bobbin (71); Described movable contact spring (4) and buffering spring (5) expose the slide opening of described bobbin (71) and are arranged in loam cake (62) and enclose cavity; Described arc-extinguishing mechanism (11) is fixedly installed on loam cake (62) and encloses in the cavity.
5, the starting relay with arc-extinguishing mechanism according to claim 4 is characterized in that: described coil block (7) also comprises a binding post (73) that is fixed on the loam cake (62); Described base (61) adopts electric conducting material to make, and described loam cake (62) adopts insulating material to make; Described coil (72) has two power supply wirings, and wherein one is electrically connected with described binding post (73), and another is electrically connected with described base (61); The other end of described earth lead (113) is electrically connected with described base (61).
6, the starting relay with arc-extinguishing mechanism according to claim 4 is characterized in that: described moving contact component (8) also comprises moving iron core (1), the backstay (2) of fixedlying connected with moving iron core (1), is set in insulating sleeve (3) and buffering spring (5) on the backstay (2); Described movable contact spring (4) is set on the described insulating sleeve (3); Described movable contact spring (4) and described buffer spring (5) set gradually along the direction away from described moving iron core (1); Described insulating sleeve (3) is provided with a sliding area (31), and described movable contact spring (4) can move back and forth in described sliding area (31) under the effect of external force and under the reseting elasticity effect of described buffer spring (5);
Described moving iron core (1) is arranged in the slide opening of bobbin (71), described back-moving spring (10) be arranged on described moving iron core (1) the side away from described movable contact spring (4), one end of described back-moving spring (10) is against on the housing (6), and the other end is against on the described moving iron core (1); Can reciprocatingly move along the axis direction of described bobbin (71) slide opening under the attraction force acts of described moving iron core (1) when coil (72) is switched on and under the reseting elasticity effect of back-moving spring (10), reciprocatingly move along the axis direction of described bobbin (71) slide opening thereby drive described movable contact spring (4);
Described static contact (92) and movable contact spring (4) set gradually according to the direction away from described back-moving spring (10), described movable contact spring (4) along with moving iron core (1) in the process that moves near described back-moving spring (10) direction, can with two static contacts (92) closure.
7, the starting relay with arc-extinguishing mechanism according to claim 6 is characterized in that: the middle part of described insulating sleeve (3) is provided with a chute as sliding area (31); One end of described buffer spring (5) props up described movable contact spring (4) and movable contact spring (4) is resisted against on the cell wall (311) of the nearer end of the described moving iron core of distance (1) of described chute, and the other end of described buffer spring (5) is against on the end (32) of the described moving iron core of distance (a 1) end far away of described insulating sleeve (3); Described movable contact spring (4) can move back and forth in described chute under the effect of external force and under the reseting elasticity effect of described buffer spring (5).
8, the starting relay with arc-extinguishing mechanism according to claim 7, it is characterized in that: described insulating sleeve (3) is made up of locating part (33) and block piece (34) amalgamation, and described locating part (33) and block piece (34) are set on the described backstay (2) successively according to the direction away from described moving iron core (1); Described locating part (33) comprises bigger base portion of diameter (331) and the less extension (332) of diameter, and described base portion (331) and extension (332) set gradually along the direction away from described moving iron core (1), thereby forms the basic configuration of stepped ramp type tubulose; Described base portion (331) and extension (332) junction form a step surface (333), and this step surface (333) is promptly as the cell wall (311) of the nearer end of the described moving iron core of the distance of described chute (1); Described block piece (34) comprises less limiting section of diameter (341) and the bigger stop part (342) of diameter, described limiting section (341) and stop part (342) set gradually along the direction away from described moving iron core (1), thereby form the basic configuration of stepped ramp type tubulose; Described movable contact spring (4) is set on the described extension (332); Described buffer spring (5) is enclosed within on the limiting section (341) of the extension (332) of described locating part (33) and described block piece (34).
9, the starting relay with arc-extinguishing mechanism according to claim 8, it is characterized in that: an end of described buffer spring (5) is against on the described movable contact spring (4), and described movable contact spring (4) is resisted against on the step surface (333) of described locating part (33), the other end of described buffer spring (5) is against on the stop part (342) of described block piece (34).
10, the starting relay with arc-extinguishing mechanism according to claim 9 is characterized in that: the side away from described movable contact spring (4) of described moving iron core (1) is provided with the groove (20) that is used for spacing back-moving spring (10); One end of described back-moving spring (10) is against on the diapire of described base (61), and the other end is against in this groove (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100006223A CN101533737B (en) | 2009-01-09 | 2009-01-09 | Startup relay with arc-extinguishing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100006223A CN101533737B (en) | 2009-01-09 | 2009-01-09 | Startup relay with arc-extinguishing mechanism |
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| Publication Number | Publication Date |
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| CN101533737A true CN101533737A (en) | 2009-09-16 |
| CN101533737B CN101533737B (en) | 2011-07-27 |
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| CN2009100006223A Expired - Fee Related CN101533737B (en) | 2009-01-09 | 2009-01-09 | Startup relay with arc-extinguishing mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023806A (en) * | 2014-04-17 | 2015-11-04 | 三菱电机株式会社 | Electromagnetic switch apparatus for starter |
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2009
- 2009-01-09 CN CN2009100006223A patent/CN101533737B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023806A (en) * | 2014-04-17 | 2015-11-04 | 三菱电机株式会社 | Electromagnetic switch apparatus for starter |
| CN105023806B (en) * | 2014-04-17 | 2017-05-31 | 三菱电机株式会社 | Electromagnetic starter switch device |
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| Publication number | Publication date |
|---|---|
| CN101533737B (en) | 2011-07-27 |
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