CN202977311U - Electromagnetic relay and switching device - Google Patents
Electromagnetic relay and switching device Download PDFInfo
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- CN202977311U CN202977311U CN 201220160437 CN201220160437U CN202977311U CN 202977311 U CN202977311 U CN 202977311U CN 201220160437 CN201220160437 CN 201220160437 CN 201220160437 U CN201220160437 U CN 201220160437U CN 202977311 U CN202977311 U CN 202977311U
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- static load
- movable contact
- armature
- contact spring
- stream plate
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Abstract
The utility model discloses an electromagnetic relay, comprising a fixedly arranged static load flow plate and a movable contact spring with at least one end movably arranged. The static load flow plate is provided with a first terminal and a second terminal; the first terminal of the static load flow plate is provided with a static contact; the movable contact spring is provided with a moving contact; and the end of the movable contact spring provided with the moving contact is movable, which enables the moving contact and the static contact to be detachably arranged. The electromagnetic relay is characterized in that a magnetic conductive plate is provided between the static load flow plate and the movable contact spring, the magnetic conductive plate is arranged on the static load flow plate, on the movable contact spring or between the static load flow plate and the movable contact spring without contact to the static load flow plate and the movable contact spring, and when the moving contact is contacted to the static contact to turn on the current, the ampere force between the static load flow plate and the movable contact spring is reduced by the magnetic conductive plate. According to the electromagnetic relay and the switching device, the influence of the ampere force is reduced, and the safety of the electromagnetic relay and the switching device is guaranteed.
Description
Technical field
The utility model relates to a kind of electromagnetic relay and switching device.
Background technology
It is a kind of electric control device that magnetic keeps electromagnetic relay, and it has control system (claim not only input circuit) and by the interactive relationship between control system (but also claiming output loop).Magnetic keeps electromagnetic relay generally to be comprised of iron core, coil, yoke, armature, permanent magnet, contact reed etc.Its operation principle is: add certain voltage at coil two ends, the electric current that coil midstream is excessively certain, thus galvanomagnetic effect produced, and armature will move under the interaction force of electromagnetic force and permanent magnet, contact with fixed contact thereby drive moving contact, connect controlled circuit.After coil blackout, the suction of electromagnetism also disappears thereupon, thereby armature is adsorbed on the contacting state that remains on yoke under the effect of permanent magnet.Coil midstream is crossed reverse current, and armature will counter motion under the interaction force of electromagnetic force and permanent magnet, disconnects with fixed contact thereby drive moving contact, disconnects by the control circuit.Cut off the power supply in coil, armature remains on the state that moving contact is separated with fixed contact under the effect of permanent magnet.Relay generally has two circuit, is low-voltage control circuit and high-pressure work circuit.The low-voltage that solenoid passes through or little electric current, being controlled what pass through in circuit is high voltage or large electric current.
It is to be applied in intelligent electric meter that magnetic keeps a kind of typical use of electromagnetic relay.Intelligent electric meter keeps electromagnetic relay with magnetic, and requirement can be born 30 times of rated current in short-term.Wherein a kind of structure is, logical forward current in solenoid makes the moving contact on movable contact spring contact and connect by the control circuit with the fixed contact that static load flows on plate.Solenoid leads to reverse current, makes the moving contact on movable contact spring separate and disconnect by the control circuit with the fixed contact that static load flows on plate.And static load flows when passing through electric current in plate and movable contact spring, and static load stream plate and movable contact spring all can generate an electromagnetic field.The electromagnetic field that static load stream plate and movable contact spring produce separately can produce the active force that acts on the other side, i.e. Ampere force.Ampere force is caused by Lorentz force.Can judge according to the right-hand rule electromagnetic field direction that the electric current separately in static load stream plate and movable contact spring produces.Can judge the direction of the Ampere force that static load stream plate and movable contact spring are subject to separately according to left hand rule.If static load stream plate is identical with the sense of current of movable contact spring, that moving contact is contacted with fixed contact is tightr for both Ampere forces of being subject to.If the current opposite in direction of static load stream plate and movable contact spring, both Ampere forces of being subject to have the trend that moving contact and fixed contact are separated.
For fear of the control of Ampere force obstruction to circuit, or adopt the static load stream plate structure identical with the movable contact spring sense of current; Adopt static load stream plate and movable contact spring current opposite in direction but only be applied to be controlled the less field of electric current in circuit.And some intelligent electric meters, rated current reaches 80A, and when it uses, short time current reaches 30 times of rated current.If rated current is large, when 30 times of rated current, the Ampere force that the static load of current opposite in direction stream plate and movable contact spring are subject to is enough to make moving contact to separate with fixed contact greater than the pressure between movable contact spring and static load stream plate so, cause relay contact to damage, relay function is lost.Therefore, the structure of static load stream plate and movable contact spring current opposite in direction, its application is restricted.Yet the electromagnetic relay of the structure of static load stream plate and movable contact spring current opposite in direction has been applied in the field such as intelligent electric meter, and other parts have the design that adapts with it.In the situation that improve rated current, as the redesign electromagnetic relay, its repacking is difficult, cost is high, implements trouble.
The utility model content
One of the purpose of this utility model is in order to overcome deficiency of the prior art, a kind of electromagnetic relay that reduces the Ampere force impact to be provided.
For realizing above purpose, the utility model is achieved through the following technical solutions:
Electromagnetic relay comprises: the static load stream plate that is fixedly installed, and described static load stream plate has first end and the second end, and static load stream plate first end is provided with fixed contact; The movable movable contact spring that arranges of at least one end is provided with moving contact on described movable contact spring; Described movable contact spring arranges at least the removable so that described moving contact of an end of moving contact and contacts with described fixed contact and can arrange dividually; It is characterized in that, be provided with magnetic conductive board between described static load stream plate and described movable contact spring, described magnetic conductive board be arranged on static load stream plate, on movable contact spring or static load stream plate and movable contact spring between and do not flow with static load the position that plate contacts with movable contact spring; When described moving contact contacted making current with described fixed contact, described magnetic conductive board can reduce the Ampere force between described static load stream plate and described movable contact spring.
Preferably, described movable contact spring has first end and the second end, and described moving contact is arranged on first end; The distance of described first end and described static load stream plate is less than the distance of described the second end and described static load stream plate.
Preferably, to light the direction of direction extension with the movable contact spring automated contact of extension identical from stationary contact is set for described static load stream plate, when described moving contact contacted making current with described fixed contact, described static load stream plate and described movable contact spring were connected with the electric current of opposite direction.
Preferably, the width of described magnetic conductive board is 1/2nd to 1.5 times that described static load flows the plate width.
Preferably, the width of described magnetic conductive board is identical with the width of described static load stream plate.
Preferably, the width of described magnetic conductive board is greater than the width of described static load stream plate, less than 1.5 times of static load stream plate width.
Preferably, described movable contact spring has the first paragraph relative with described static load stream plate and the second segment relative with described static load stream plate; First paragraph is connected by the 3rd section with second segment; The distance of described first paragraph and described static load stream plate is less than the distance of described second segment and described static load stream plate; Described moving contact is arranged on first paragraph; Described magnetic conductive board is arranged between fixed contact and the second end; Described magnetic conductive board is lighted extension from stationary contact length is more than or equal to the distance between moving contact and the 3rd section.
Preferably, described magnetic conductive board length is less than or equal to the distance between moving contact and second segment.
Preferably, described electromagnetic relay also comprises the end tab that is fixedly installed, and the second segment of described movable contact spring is fixedly connected on end tab; The first paragraph that described movable contact spring arranges moving contact can and can flow plate ground setting away from static load near static load stream plate; Described end tab and static load stream plate form two leading-out terminals of switch.
Preferably, on the Width of described static load stream plate, the length of described magnetic conductive board is constant.
Preferably, described electromagnetic relay also comprises housing, and described housing is provided with cavity volume; Described static load stream plate is arranged on described housing and first end is positioned at cavity volume, the second end is positioned at outside cavity volume; Described movable contact spring is arranged in cavity volume, and end tab is arranged on housing, and end tab two ends lay respectively in cavity volume and outside cavity volume; The end that movable contact spring does not arrange moving contact is connected with end tab; Be provided with electromagnetic assembly in cavity volume; Electromagnetic assembly driving movable contact spring moves so that moving contact contacts and separates with fixed contact.
Preferably, described magnetic conductive board is the soft magnetic material plate.More preferably that described magnetic conductive board is iron plate.
Two of the purpose of this utility model is in order to overcome deficiency of the prior art, a kind of switching device that reduces the Ampere force impact to be provided.
For realizing above purpose, the utility model is achieved through the following technical solutions:
Switching device is characterized in that, comprising: housing, and described housing is provided with cavity volume; The static load stream plate that is fixedly installed, described static load stream plate has first end and the second end, and static load stream plate first end is provided with fixed contact; The first end that fixed contact is set is positioned at cavity volume, and the second end that fixed contact is not set is positioned at outside cavity volume; The movable movable contact spring that arranges of at least one end, the movable end of described movable contact spring is arranged in cavity volume; The movable end of movable contact spring is provided with moving contact; The movable end of described movable contact spring moves and described moving contact is contacted with described fixed contact and can separate; Magnetic conductive board, described magnetic conductive board between described static load stream plate and described movable contact spring, described magnetic conductive board be arranged on described static load stream plate, on described movable contact spring or described static load stream plate and described movable contact spring between and do not flow with described static load the position that plate contacts with described movable contact spring; Driver part, described driver part and described movable contact spring are in transmission connection, and described driver part drives the movable end of described movable contact spring and moves so that described moving contact contacts and separates with described fixed contact.
Preferably, described driver part is electromagnetic drive.
Preferably, described electromagnetic drive comprises coil, iron core, yoke and armature; The described iron core setting of described coil encircling, described yoke is connected with described iron core, and described armature has magnetic; When described coil electricity, described iron core, described yoke produce magnetic; Described armature is subjected to the magnetic drive of described yoke and moves after described yoke produces magnetic; The end that the described movable contact spring of armature driving of described motion arranges moving contact moves.
Preferably, described yoke comprises L-type the first yoke and L-type the second yoke; The first end of described L-type the first yoke is connected with the first end of described iron core, and the first end of described L-type the second yoke is connected with the second end of described iron core; Described armature comprises the first armature, and described the first armature arranges rotationally; When described coil electricity, the two ends of described the first armature are subjected to respectively attraction and the repulsion of the second end of the second end of described L-type the first yoke and described L-type the second yoke.
preferably, described armature also comprises the second armature, and the interlock of the first armature and the second armature arranges and has the gap between the two, in the gap of the second end of described L-type the first yoke between described the first armature and described the second armature, in the gap of the second end of described L-type the second yoke between described the first armature and described the second armature, when described coil electricity, described first armature of two port its both sides of described L-type the first yoke is identical with the force direction of described the second armature, described first armature of two port its both sides of described L-type the second yoke is identical with the force direction of described the second armature, and the second end of the second end of described L-type the first yoke and described L-type the second yoke is opposite to described the first armature force direction that is positioned at its same side, the second end of the second end of described L-type the first yoke and described L-type the second yoke is opposite to described the second armature force direction that is positioned at its same side.
Preferably, described the first armature is opposite with described the second armature magnetic.
Preferably, described the first armature and described the second armature are arranged on fixed mount; Be provided with pivot on described fixed mount, described pivot is between described the first armature and described the second armature, and between the second end of the second end of described L-type the first yoke and described L-type the second yoke; Described pivot is arranged in described cavity volume rotationally; The end that described fixed mount and described movable contact spring arrange described moving contact is in transmission connection.
Preferably, also comprise a push pedal, be provided with chute in described cavity volume; Described push pedal can move in described chute so that described push pedal only can make described moving contact near and direction away from described fixed contact on move.
Preferably, described armature fixed mount is provided with push rod; The movable end of push pedal one end and described movable contact spring is connected, and the other end is connected with described push rod; Described push rod can drive at least one end of described movable contact spring by described push pedal and move.
Preferably, be provided with permanent magnet on described fixed mount; Described the first armature and described the second armature are iron plate; Described the first armature and described the second armature respectively with two end in contact of described permanent magnet.
Preferably, described movable contact spring has first end and the second end, and described moving contact is arranged on the first end of described movable contact spring; The distance of described movable contact spring first end and described static load stream plate is less than the distance of described movable contact spring the second end and described static load stream plate.
Preferably, described static load stream plate is identical from the direction that direction that described stationary contact lights extension and described movable contact spring light extension from described movable contact is set, when described moving contact contacted making current with described fixed contact, described static load stream plate and described movable contact spring were connected with the electric current of opposite direction.
Preferably, the width of described magnetic conductive board is 1/2nd to 1.5 times that described static load flows the plate width.
Preferably, the width of described magnetic conductive board is identical with the width of described static load stream plate.
Preferably, the width of described magnetic conductive board is greater than the width of described static load stream plate, less than 1.5 times of static load stream plate width.
Preferably, described movable contact spring has the first paragraph relative with described static load stream plate and the second segment relative with described static load stream plate; Described first paragraph is connected by the 3rd section with described second segment; The distance of described first paragraph and described static load stream plate is less than the distance of described second segment and described static load stream plate; Described moving contact is arranged on described first paragraph; Described magnetic conductive board length is more than or equal to the length of the described first paragraph between described moving contact and described second segment.
Preferably, described magnetic conductive board length is less than or equal to the distance between described moving contact and described second segment.
Preferably, described electromagnetic relay also comprises the end tab that is fixedly installed, and the second segment of described movable contact spring is fixedly connected on described end tab; The first paragraph that described movable contact spring arranges described moving contact can and can flow plate ground setting away from described static load near described static load stream plate; Described end tab and described static load stream plate form two leading-out terminals of described switching device.
Preferably, on the Width of described static load stream plate, the width of described magnetic conductive board is constant.
Preferably, described magnetic conductive board is the soft magnetic material plate.More preferably that described magnetic conductive board is iron plate.
Preferably, described switching device is that magnetic keeps electromagnetic relay.
Preferably, described driver part comprises fixed mount, and described fixed mount is arranged in described cavity volume pivotly; Be provided with push rod on described fixed mount, described push rod is in transmission connection by push pedal and the movable end of described movable contact spring; Described housing is provided with through hole; Described push rod passes housing and the one end is positioned at outside cavity volume from described through hole; Described push rod can move in described through hole to drive at least one end of movable contact spring by push pedal and move.
Electromagnetic relay in the utility model and switching device, magnetic conductive board is between static load stream plate and movable contact spring, namely be arranged in the transmission route process in the magnetic field of static load stream plate or movable contact spring generation, when magnetic field transmission during to magnetic conductive board, magnetic field changes transmission direction and transmits along magnetic conductive board, therefore magnetic conductive board can reduce the electromagnetic field intensity of the movable contact spring generation that transfers to static load stream plate, also can reduce the electromagnetic field intensity of the static load stream plate generation that transfers to movable contact spring, thereby has reduced the Ampere force to static load stream plate and movable contact spring.Reduced Ampere force, can guarantee that movable contact spring can remain that moving contact contacts with fixed contact.Even controlled the circuit rated current greatly, 30 times, circuit is to rated current in short-term, movable contact spring still can keep moving contact contact with fixed contact, prevents relay, switching device damage, brings into play the control function of relay, switching device.
Electromagnetic relay in the utility model and switching device, simple in structure, can bear 30 times of short time currents to rated current.The utility model can reduce the impact of Ampere force, keep the safety of electromagnetic relay and switching device, both widened static load stream plate and the relay of the structure of movable contact spring current opposite in direction and the application of switching device, and avoided existing static load is flowed the relay of structure of plate and movable contact spring current opposite in direction and the large-scale redevelopment of switching device.
Description of drawings
Fig. 1 is that the magnetic in the utility model keeps the electromagnetic relay structural representation.
Fig. 2 is that the magnetic in the utility model keeps electromagnetic relay internal structure schematic diagram.
Fig. 3 is that the magnetic in the utility model keeps the electromagnetic relay cutaway view.
Fig. 4 is the structural representation of the magnetic in the utility model when keeping electromagnetic relay that movable member is not set.
Fig. 5 is the electromagnetic assembly cutaway view in the utility model.
Fig. 6 is the movable member structural representation in the utility model.
Fig. 7 is the movable member cutaway view in the utility model.
Fig. 8 is the switch block structural representation in the utility model.
Fig. 9 is the static load stream plate end view in the utility model.
Figure 10 is the movable contact spring structural representation in the utility model.
Figure 11 is that the magnetic in the utility model keeps electromagnetic relay first to use view.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail:
As shown in Figure 1 and Figure 2, electromagnetic relay 100 comprises housing 1 10, and housing 1 10 is provided with cavity volume 120.Be provided with electromagnetic assembly shown in Figure 5 200, Fig. 6 and rotatable components 300 shown in Figure 7 and Fig. 8 in cavity volume 120 to switch block 900 shown in Figure 10.
As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, electromagnetic assembly comprises coil 210, iron core 220, L-type the first yoke 230 and L-type the second yoke 240.Coil 210 arranges around iron core 220, and itself and two contact pins (211,212) are electrically connected to.Two contact pins (211,212) are fixedly installed on housing 110.Two contact pins (211,212) can connect respectively power positive cathode, so that the interior generation current of coil 210.During coil 210 interior generation current, make iron core 220 produce magnetic, the first end 221 of iron core is opposite with the second end 222 magnetic.When being connected with current in opposite in coil 210, first end 221 magnetic of iron core are opposite; The second end 222 magnetic of iron core are also opposite.The first end 231 of L-type the first yoke is connected with the first end 221 of iron core, and the magnetic of the first end 221 of iron core can be passed to the second end 232 of L-type the first yoke.The first end 241 of L-type the second yoke is connected with the second end 222 of iron core, and the magnetic of the second end 222 of iron core can be passed to the second end 242 of L-type the second yoke.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6 and shown in Figure 7, movable member 300 comprises fixed mount 3 10, permanent magnet 320, the first armature 330 and the second armature 340.Permanent magnet 320, the first armature 330 and the second armature 340 are fixed on fixed mount 310.Has the gap between the first armature 330 and the second armature 340.As shown in Figure 7, the first armature 330 and the second armature 340 lay respectively at permanent magnet 320 right sides and left side.The first armature 330 and the second armature 340 are iron plate, both respectively with left and right two end in contact of permanent magnet 320.Therefore the first armature 330 and the second armature 340 have opposite magnetic.The second end 232 of L-type the first yoke is between the first armature 330 and the second armature 340, the second end 242 of L-type the second yoke and has the gap between the second end 242 of the second end 232 of L-type the first yoke and L-type and yoke, lays respectively at the both sides up and down of permanent magnet 320 between the first armature 330 and the second armature 340.Be provided with two pivots 311 (shown in figure one) on fixed mount 310, one of them pivot 311 is inserted in installing hole 12 1 in cavity volume 120 rotationally.Pivot 3 11 is between the first armature 330 and the second armature 340, and in the second end 232 of L-type the first yoke and L-type and between the second end 242 of yoke.Fixed mount 310 can be around two pivot 311 pivotables.Be provided with push rod 312 on fixed mount 310.Be provided with through hole 11 1 on housing 110.Push rod 3 12 passes housing 110 from through hole 11 1, and its end is positioned at outside cavity volume 120, and push rod 312 can be in the interior movement of through hole 111.During around pivot 311 pivotable, push rod 312 is in the interior swing of through hole 111 at fixed mount 310.
Also be provided with drive disk assembly in cavity volume 120, drive disk assembly is push pedal 400.The first end 401 of push pedal is connected with push rod 312.Be provided with chute 122 in cavity volume 120.Push pedal 400 is arranged in chute 122 movably.Chute 122 is used for the direction of motion of restriction push pedal 400.When push rod 312 swings, drive push pedal 400 and move left and right.
As Fig. 2, Fig. 3, Fig. 8, Fig. 9 and shown in Figure 10, switch block 900 comprises static load stream plate 500, end tab 600 and movable contact spring 700.
Static load stream plate 500 is fixedly installed on housing 110.Static load stream plate 500 1 ends are positioned at cavity volume 120, and the other end is positioned at outside cavity volume 120.The end that static load stream plate 500 is positioned at cavity volume 120 is provided with circular fixed contact 510.
Movable contact spring 700 is arranged in cavity volume 120.The first end 70 1 of movable contact spring is connected with push pedal 400.When push pedal 400 moved left and right, the first end 701 that can drive movable contact spring moved left and right.Be divided into three sections between the first end 701 of movable contact spring and the second end 702, first paragraph 710, second segment 720 all are oppositely arranged with static load stream plate 500, and parallel with static load stream plate 500.The first paragraph 710 of movable contact spring flows the distance of plate 500 with the distance of static load stream plate 500 less than second segment 720 and static load.The first paragraph 710 of movable contact spring is connected by the 3rd section 730 with second segment 720.The second end 702 of movable contact spring is connected with end tab 600.Movable contact spring 700 has certain elasticity, so that it is in the situation that the second end 702 is fixing, first end 701 can be driven by push pedal 400 and move.Be provided with circular moving contact 740 on first paragraph 710.Distance between moving contact 740 and the 3rd section 730 is L1.The vertical length of the 3rd section 730 is L3, that is to say that the distance between first paragraph 710 and second segment 720 is L3.Moving contact 740 is oppositely arranged with fixed contact 510 left and right.When the first end 701 of push pedal 400 driving movable contact springs moved, the first end 701 of moving contact 740 servo-actuated reeds moved and moves to fixed contact 510 contacts or separate.
Be provided with magnetic conductive board 800 between static load stream plate 500 and movable contact spring 700.The iron plate of magnetic conductive board 800 for having magnetic conductivity.Magnetic conductive board 800 is fixedly installed on static load stream plate 500.Magnetic conductive board 800 width are identical with static load stream plate 500 width.The length of magnetic conductive board 800 is L2.L2 is greater than L1, but less than L1 and L3 sum.Magnetic conductive board 800 has arc notch 801, and the part of fixed contact 5 10 is positioned at arc notch 801.
Magnetic conductive board 800 in the utility model also can not arrange breach 801, and on the Width of static load stream plate 500, the length of magnetic conductive board 800 is constant.It is tabular that magnetic conductive board 800 in the utility model can adopt soft magnetic material to make.
Upper and lower, left and right in the utility model are relative concept.
Magnetic in the utility model keeps the electromagnetic relay using method as follows:
As shown in figure 11, the first armature 330 all contacts with permanent magnet 320 with the second armature 340 and is with and is magnetic, and both magnetic are opposite.The lower end of the first armature 330 is adjacent to L-type the second yoke 240, the second armature 340 because of magnetic attraction upper end is adjacent to L-type the first yoke 230 because of magnetic attraction.At this moment, push rod 312 is positioned at the low order end of through hole 111.By push pedal 400, push rod 312 makes the first end 701 of movable contact spring remain on the rightest position, makes moving contact 740 and fixed contact 5 10 be in released state and distance farthest.Switch block 900 is in off-state.
Use on the basis of state first, after the first armature coil 210 energisings, L-type the first yoke 230 and L-type the second yoke 240 all produce magnetic.The magnetic of L-type the first yoke 230 is opposite with the first armature 330 magnetic, and is same with the second armature 340 Magnetic Phases.The magnetic of L-type the second yoke 240 and the first armature 330 Magnetic Phases are same, and are opposite with the second armature 340 magnetic.Because of magnetic attraction and repulsive interaction, the upper end of the first armature 330 is subject to the attraction left of L-type the first yoke 230, and the lower end of the first armature is subject to L-type the second yoke 240 repulsive force to the right; The upper end of the second armature is subject to the repulsive force left of L-type the first yoke 230, and the lower end of the second armature is subject to L-type the second yoke 240 attraction to the right.Under the effect of magnetic force, fixed mount 310 is around the counterclockwise pivotable of pivot 311, until the upper end of the first armature 330 and L-type the first yoke 230 are adjacent to, lower end and L-type second yoke 240 of the first armature 330 are adjacent to.When fixed mount 310 was rotated counterclockwise, push rod 312 was moved to the left.By the transmission of push pedal 400, the first end 701 that push rod 312 drives movable contact spring is moved to the left, and moving contact 710 reduces with the distance of fixed contact 510.
Continue the electric current in hold-in winding 2 10, L-type the first yoke 230 and L-type the second yoke 240 continue the force direction of the first armature 330 and the second armature 340 is remained unchanged.Fixed mount 310 continues to be rotated counterclockwise, until as shown in Figure 2, the upper end of the first armature 330 is adjacent to L-type the first yoke 230, the second armature 340 because of magnetic attraction lower end is adjacent to L-type the second yoke 240 because of magnetic attraction.At this moment, push rod 312 moves to the high order end of through hole 111.By the transmission of push pedal 400, the first end 701 that push rod 312 drives movable contact spring is moved to the left moving contact 710 and contacts with fixed contact 510.When moving contact 710 contacted with fixed contact 510, switch block 900 was in closure state, and it can form current path.Utilize the electro permanent magnetic of electromagnetic assembly, can make moving contact 710 and fixed contact 510 remain on contact condition, switch block 900 is in closure state all the time.Even coil 210 cuts off the power supply at this moment, also can utilize the magnetic force of the first armature 330 and the second armature 340, make the first armature 330 and the second armature 340 be adsorbed on L-type the first yoke 230 and L-type the second yoke 240, thereby remain on state shown in Figure 2.
As need cut-off switch parts 900, only need to pass into rightabout electric current in coil 310.The opposite direction when force direction of L-type the first yoke 230 and 240 pairs of the first armature 330 of L-type the second yoke all uses state with second.The force direction of L-type the first yoke 230 and 240 pairs of the second armature 340 of L-type the second yoke is all opposite when second uses state.Therefore fixed mount 310 is clockwise to the first state shown in Figure 11, and moving contact 710 separates with fixed contact 510.This moment, switch block 900 was in off-state, with circuitry cuts.
Because the jack position of socket is determined, the static load stream plate and the end tab distance that are positioned at outside cavity volume 120 are determined.For reduce between moving contact 710 and fixed contact 510 contact angle, contact area when both are contacted is larger, the first paragraph 710 of the movable contact spring 710 in the present invention is nearer apart from static load stream plate 500 with respect to second segment 720.Therefore, the Ampere force between the first paragraph 710 of static load stream plate 500 and movable contact spring 700 is larger.During to rated current, its Ampere force can surpass the thrust of 200 pairs of movable contact springs 700 of electromagnetic assembly 30 times of transient currents, moving contact 710 and fixed contact 510 are separated, thus the cut-out circuit.This situation belongs to the fault that magnetic keeps electromagnetic relay, does not meet instructions for use.Between static load flow 500 and movable contact spring 700, magnetic conductive board 800 is set in the present invention, can play guide function to the electromagnetism of static load flow 500 or movable contact spring 700, reduce the electromagnetism of crossing magnetic conductive board 800, thereby reduce the Ampere force between static load stream plate 500 and movable contact spring 700.Magnetic conductive board 800 width are identical with static load stream plate 500 width, and maximizing reduces the impact of Ampere force.Because the Ampere force between the first paragraph 710 of static load stream plate 500 and movable contact spring is maximum, therefore, the length of magnetic conductive board 800 covers both fully impacts of Ampere force of length of the first paragraph between moving contact 710 and the 3rd section 730, and the while is also saved material.Push rod in the present invention stretches out outside cavity volume, and when electromagnetic assembly broke down, disconnection and closure that can the hand control switch parts be used safer.
Embodiment in the utility model only is used for the utility model is described, and does not consist of the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in the utility model protection range.
Claims (36)
1. electromagnetic relay comprises:
The static load stream plate that is fixedly installed, described static load stream plate has first end and the second end, and static load stream plate first end is provided with fixed contact;
The movable movable contact spring that arranges of at least one end is provided with moving contact on described movable contact spring; Described movable contact spring arranges at least the removable so that described moving contact of an end of moving contact and contacts with described fixed contact and can arrange dividually;
It is characterized in that, be provided with magnetic conductive board between described static load stream plate and described movable contact spring, described magnetic conductive board be arranged on static load stream plate, on movable contact spring or static load stream plate and movable contact spring between and do not flow with static load the position that plate contacts with movable contact spring;
When described moving contact contacted making current with described fixed contact, described magnetic conductive board can reduce the Ampere force between described static load stream plate and described movable contact spring.
2. electromagnetic relay according to claim 1, is characterized in that, described movable contact spring has first end and the second end, and described moving contact is arranged on first end; The distance of described first end and described static load stream plate is less than the distance of described the second end and described static load stream plate.
3. electromagnetic relay according to claim 1, it is characterized in that, to light the direction of direction extension with the movable contact spring automated contact of extension identical from stationary contact is set for described static load stream plate, when described moving contact contacted making current with described fixed contact, described static load stream plate and described movable contact spring were connected with the electric current of opposite direction.
4. electromagnetic relay according to claim 1, is characterized in that, the width of described magnetic conductive board is 1/2nd to 1.5 times of described static load stream plate width.
5. electromagnetic relay according to claim 4, is characterized in that, the width of described magnetic conductive board is identical with the width of described static load stream plate.
6. electromagnetic relay according to claim 4, is characterized in that, the width of described magnetic conductive board is greater than the width of described static load stream plate, less than 1.5 times of static load stream plate width.
7. electromagnetic relay according to claim 1, is characterized in that, described movable contact spring has the first paragraph relative with described static load stream plate and the second segment relative with described static load stream plate; First paragraph is connected by the 3rd section with second segment; The distance of described first paragraph and described static load stream plate is less than the distance of described second segment and described static load stream plate; Described moving contact is arranged on first paragraph; Described magnetic conductive board is arranged between fixed contact and the second end; Described magnetic conductive board is lighted extension from stationary contact length is more than or equal to the distance between moving contact and the 3rd section.
8. electromagnetic relay according to claim 7, is characterized in that, described magnetic conductive board length is less than or equal to the distance between moving contact and second segment.
9. electromagnetic relay according to claim 7, is characterized in that, described electromagnetic relay also comprises the end tab that is fixedly installed, and the second segment of described movable contact spring is fixedly connected on end tab; The first paragraph that described movable contact spring arranges moving contact can and can flow plate ground setting away from static load near static load stream plate; Described end tab and static load stream plate form two leading-out terminals of switch.
10. electromagnetic relay according to claim 1, is characterized in that, on the Width of described static load stream plate, the length of described magnetic conductive board is constant.
11. according to the described electromagnetic relay of any one in the claims 1-10, it is characterized in that, described electromagnetic relay also comprises housing, described housing is provided with cavity volume; Described static load stream plate is arranged on described housing and first end is positioned at cavity volume, the second end is positioned at outside cavity volume; Described movable contact spring is arranged in cavity volume, and end tab is arranged on housing, and end tab two ends lay respectively in cavity volume and outside cavity volume; The end that movable contact spring does not arrange moving contact is connected with end tab; Be provided with electromagnetic assembly in cavity volume; Electromagnetic assembly driving movable contact spring moves so that moving contact contacts and separates with fixed contact.
12. electromagnetic relay according to claim 1 is characterized in that, described magnetic conductive board is the soft magnetic material plate.
13. electromagnetic relay according to claim 12 is characterized in that, described magnetic conductive board is iron plate.
14. switching device is characterized in that, comprising:
Housing, described housing is provided with cavity volume;
The static load stream plate that is fixedly installed, described static load stream plate has first end and the second end, and static load stream plate first end is provided with fixed contact; The first end that fixed contact is set is positioned at cavity volume, and the second end that fixed contact is not set is positioned at outside cavity volume;
The movable movable contact spring that arranges of at least one end, the movable end of described movable contact spring is arranged in cavity volume; The movable end of movable contact spring is provided with moving contact; The movable end of described movable contact spring moves and described moving contact is contacted with described fixed contact and can separate;
Magnetic conductive board, described magnetic conductive board between described static load stream plate and described movable contact spring, described magnetic conductive board be arranged on described static load stream plate, on described movable contact spring or described static load stream plate and described movable contact spring between and do not flow with described static load the position that plate contacts with described movable contact spring;
Driver part, described driver part and described movable contact spring are in transmission connection, and described driver part drives the movable end of described movable contact spring and moves so that described moving contact contacts and separates with described fixed contact.
15. switching device according to claim 14 is characterized in that, described driver part is electromagnetic drive.
16. switching device according to claim 15 is characterized in that, described electromagnetic drive comprises coil, iron core, yoke and armature; The described iron core setting of described coil encircling, described yoke is connected with described iron core, and described armature has magnetic; When described coil electricity, described iron core, described yoke produce magnetic; Described armature is subjected to the magnetic drive of described yoke and moves after described yoke produces magnetic; The end that the described movable contact spring of armature driving of described motion arranges moving contact moves.
17. switching device according to claim 16 is characterized in that, described yoke comprises L-type the first yoke and L-type the second yoke; The first end of described L-type the first yoke is connected with the first end of described iron core, and the first end of described L-type the second yoke is connected with the second end of described iron core; Described armature comprises the first armature, and described the first armature arranges rotationally; When described coil electricity, the two ends of described the first armature are subjected to respectively attraction and the repulsion of the second end of the second end of described L-type the first yoke and described L-type the second yoke.
18. switching device according to claim 17 is characterized in that, described armature also comprises the second armature, and the interlock of the first armature and the second armature arranges and has the gap between the two, in the gap of the second end of described L-type the first yoke between described the first armature and described the second armature, in the gap of the second end of described L-type the second yoke between described the first armature and described the second armature, when described coil electricity, described first armature of two port its both sides of described L-type the first yoke is identical with the force direction of described the second armature, described first armature of two port its both sides of described L-type the second yoke is identical with the force direction of described the second armature, and the second end of the second end of described L-type the first yoke and described L-type the second yoke is opposite to described the first armature force direction that is positioned at its same side, the second end of the second end of described L-type the first yoke and described L-type the second yoke is opposite to described the second armature force direction that is positioned at its same side.
19. switching device according to claim 18 is characterized in that, described the first armature is opposite with described the second armature magnetic.
20. switching device according to claim 18 is characterized in that, described the first armature and described the second armature are arranged on fixed mount; Be provided with pivot on described fixed mount, described pivot is between described the first armature and described the second armature, and between the second end of the second end of described L-type the first yoke and described L-type the second yoke; Described pivot is arranged in described cavity volume rotationally; The end that described fixed mount and described movable contact spring arrange described moving contact is in transmission connection.
21. switching device according to claim 20 is characterized in that, also comprises a push pedal, is provided with chute in described cavity volume; Described push pedal can move in described chute so that described push pedal only can make described moving contact near and direction away from described fixed contact on move.
22. switching device according to claim 21 is characterized in that, described armature fixed mount is provided with push rod; The movable end of push pedal one end and described movable contact spring is connected, and the other end is connected with described push rod; Described push rod can drive at least one end of described movable contact spring by described push pedal and move.
23. switching device according to claim 22 is characterized in that, is provided with permanent magnet on described fixed mount; Described the first armature and described the second armature are iron plate; Described the first armature and described the second armature respectively with two end in contact of described permanent magnet.
24. switching device according to claim 14 is characterized in that, described movable contact spring has first end and the second end, and described moving contact is arranged on the first end of described movable contact spring; The distance of described movable contact spring first end and described static load stream plate is less than the distance of described movable contact spring the second end and described static load stream plate.
25. switching device according to claim 14, it is characterized in that, described static load stream plate is identical from the direction that direction that described stationary contact lights extension and described movable contact spring light extension from described movable contact is set, when described moving contact contacted making current with described fixed contact, described static load stream plate and described movable contact spring were connected with the electric current of opposite direction.
26. switching device according to claim 14 is characterized in that, the width of described magnetic conductive board is 1/2nd to 1.5 times of described static load stream plate width.
27. switching device according to claim 26 is characterized in that, the width of described magnetic conductive board is identical with the width of described static load stream plate.
28. switching device according to claim 26 is characterized in that, the width of described magnetic conductive board is greater than the width of described static load stream plate, less than 1.5 times of static load stream plate width.
29. switching device according to claim 14 is characterized in that, described movable contact spring has the first paragraph relative with described static load stream plate and the second segment relative with described static load stream plate; Described first paragraph is connected by the 3rd section with described second segment; The distance of described first paragraph and described static load stream plate is less than the distance of described second segment and described static load stream plate; Described moving contact is arranged on described first paragraph; Described magnetic conductive board length is more than or equal to the length of the described first paragraph between described moving contact and described second segment.
30. switching device according to claim 29 is characterized in that, described magnetic conductive board length is less than or equal to the distance between described moving contact and described second segment.
31. switching device according to claim 30 is characterized in that, described electromagnetic relay also comprises the end tab that is fixedly installed, and the second segment of described movable contact spring is fixedly connected on described end tab; The first paragraph that described movable contact spring arranges described moving contact can and can flow plate ground setting away from described static load near described static load stream plate; Described end tab and described static load stream plate form two leading-out terminals of described switching device.
32. switching device according to claim 14 is characterized in that, on the Width of described static load stream plate, the width of described magnetic conductive board is constant.
33. switching device according to claim 14 is characterized in that, described magnetic conductive board is the soft magnetic material plate.
34. switching device according to claim 33 is characterized in that, described magnetic conductive board is iron plate.
35. switching device according to claim 14 is characterized in that, described switching device is that magnetic keeps electromagnetic relay.
36. switching device according to claim 14 is characterized in that, described driver part comprises fixed mount, and described fixed mount is arranged in described cavity volume pivotly; Be provided with push rod on described fixed mount, described push rod is in transmission connection by push pedal and the movable end of described movable contact spring; Described housing is provided with through hole; Described push rod passes housing and the one end is positioned at outside cavity volume from described through hole; Described push rod can move in described through hole to drive at least one end of movable contact spring by push pedal and move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220160437 CN202977311U (en) | 2012-04-16 | 2012-04-16 | Electromagnetic relay and switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220160437 CN202977311U (en) | 2012-04-16 | 2012-04-16 | Electromagnetic relay and switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977311U true CN202977311U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220160437 Withdrawn - After Issue CN202977311U (en) | 2012-04-16 | 2012-04-16 | Electromagnetic relay and switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977311U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013155870A1 (en) * | 2012-04-16 | 2013-10-24 | 泰科电子(深圳)有限公司 | Electromagnetic relay and switch device |
| CN103794415A (en) * | 2014-01-23 | 2014-05-14 | 厦门宏发电力电器有限公司 | Electromagnetic relay and movable contact spring thereof |
| CN105940476A (en) * | 2014-01-28 | 2016-09-14 | 泰科电子奥地利有限责任公司 | Switching contact and method of producing latter |
| CN110556269A (en) * | 2018-05-31 | 2019-12-10 | 富士通电子零件有限公司 | Electromagnetic relay |
| CN113078031A (en) * | 2021-04-02 | 2021-07-06 | 浙江安迅电气股份有限公司 | Safe and stable magnetic latching relay and voltage regulating device thereof |
| TWI744161B (en) * | 2021-01-04 | 2021-10-21 | 松川精密股份有限公司 | Electromagnetic relay with external manual control of electrical opening and closing |
-
2012
- 2012-04-16 CN CN 201220160437 patent/CN202977311U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103377857A (en) * | 2012-04-16 | 2013-10-30 | 泰科电子(深圳)有限公司 | Electromagnetic relay and switching device |
| CN103377857B (en) * | 2012-04-16 | 2016-01-13 | 泰科电子(深圳)有限公司 | Electromagnetic relay and switching device |
| WO2013155870A1 (en) * | 2012-04-16 | 2013-10-24 | 泰科电子(深圳)有限公司 | Electromagnetic relay and switch device |
| CN103794415B (en) * | 2014-01-23 | 2017-04-05 | 厦门宏发电力电器有限公司 | electromagnetic relay and its movable contact spring |
| CN103794415A (en) * | 2014-01-23 | 2014-05-14 | 厦门宏发电力电器有限公司 | Electromagnetic relay and movable contact spring thereof |
| CN105940476B (en) * | 2014-01-28 | 2018-09-25 | 泰科电子奥地利有限责任公司 | The method of switching contact and manufacture switching contact |
| CN105940476A (en) * | 2014-01-28 | 2016-09-14 | 泰科电子奥地利有限责任公司 | Switching contact and method of producing latter |
| US10431397B2 (en) | 2014-01-28 | 2019-10-01 | Tyco Electronics Austria Gmbh | Switching contact and a method of producing the latter |
| CN110556269A (en) * | 2018-05-31 | 2019-12-10 | 富士通电子零件有限公司 | Electromagnetic relay |
| CN110556269B (en) * | 2018-05-31 | 2024-04-30 | 富士通电子零件有限公司 | Electromagnetic relay |
| TWI744161B (en) * | 2021-01-04 | 2021-10-21 | 松川精密股份有限公司 | Electromagnetic relay with external manual control of electrical opening and closing |
| CN113078031A (en) * | 2021-04-02 | 2021-07-06 | 浙江安迅电气股份有限公司 | Safe and stable magnetic latching relay and voltage regulating device thereof |
| CN113078031B (en) * | 2021-04-02 | 2021-12-31 | 浙江安迅电气股份有限公司 | Magnetic latching relay and voltage regulating device thereof |
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