CN201570456U - Novel magnetic latching relay for two sets of contact sets - Google Patents
Novel magnetic latching relay for two sets of contact sets Download PDFInfo
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- CN201570456U CN201570456U CN200920165117XU CN200920165117U CN201570456U CN 201570456 U CN201570456 U CN 201570456U CN 200920165117X U CN200920165117X U CN 200920165117XU CN 200920165117 U CN200920165117 U CN 200920165117U CN 201570456 U CN201570456 U CN 201570456U
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Abstract
The utility model discloses a novel magnetic latching relay for two sets of contact sets, which comprises a contact part, a magnetic circuit part, a base and a push block, wherein the contact part comprises two sets of normally closed static spring assemblies, two sets of normally opened static spring assemblies and two sets of normally movable spring assemblies; the magnetic circuit part adopts a balanced magnetic circuit structure; two arms are arranged at one end of the push block; one clamping groove is formed on each of the opposite inner side edges of the two arms; a projection is arranged in the middle of each clamping groove; one notch is formed on each of the opposite outer side edges of the two movable springs; the outer side edges of the two movable springs are respectively clamped in the corresponding clamping grooves of the two arms of the push block; and notches of the outer side edges of the two movable springs are respectively buckled with the projections of the two clamping grooves. The magnetic latching relay adopts the structure of balanced magnetic circuit, so that the disadvantages caused by the original unbalanced structure are avoided; and meanwhile the push block can exert pressure onto the two pairs of contact sets so as to enable the contacts in on-state. In addition, the magnetic latching relay is characterized by simple structure, low manufacture cost and suitability for mass production.
Description
Technical field
The utility model relates to a kind of magnetic latching relay, particularly relates to a kind of magnetic latching relay of novel two groups of contact sets.
Background technology
Magnetic latching relay can reduce the energy consumption of relay coil effectively because coil does not need long-term power supply, meets the development main trend of current environmental protection and energy saving, thereby also is a main direction of relay development.
Existing magnetic latching relay with two groups of contact sets is the unbalanced magnetic latching relay, and it generally includes contact portion, magnetic circuit part, pushing block and base.Contact portion has generally included two groups of normally closed static contact spring piece assemblies, two groups and has often opened static contact spring piece assembly and two groups of movable contact spring assemblies, and these assemblies are packed in the plug-in mounting mode in the base, forms stable, contact portion reliably.Magnetic circuit partly generally includes U-shaped yoke, magnet steel, yoke, armature, making leaf spring, bobbin and coil windings; One end of U-shaped yoke carries out flattening of large deformation and forms flattening structure, fit on magnet steel and yoke then, and the other end is not flattened, in the bobbin hole of can packing into.The magnetic circuit part is assembled into whole of relay along the folk prescription of base in opening is packed base into, pushing block one end is through clamping, form hinge joint with the armature head, can in certain angle, rotate, make that can drive pushing block when armature movement moves, the other end of pushing block adopts projection cube structure to snap in the breach of movable contact spring and forms folk prescription to connection with overlapping mode, the moving displacement that armature in the magnetic circuit produces can be passed to movable contact spring.Under relay is in reset mode, when coil is applied pulse voltage, produce the pulse magnetic flux in the magnetic circuit loop, it makes armature move to the yoke direction, and promotion moving contact motion, two groups of reset contact groups (i.e. two groups of normally-closed contact groups) are disconnected, and two groups of set contact sets (i.e. two groups of normally opened contact groups) are connected.After the pulse voltage, form the local flux loop, under the magneticaction of magnet steel, armature is remained on SM set mode, and keep two groups of set contact sets (i.e. two groups of normally opened contact groups) in conducting state by the part of magnet steel, yoke, armature, the part of yoke; When coil is applied reverse impulse voltage, produce the pulse magnetic flux opposite in the magnetic circuit loop with the magnet steel flow direction, when this pulse magnetic flux equals the magnet steel magnetic flux, pulse magnetic flux and magnet steel magnetic flux interact, reach and offset, make armature not be subjected to the external force effect, under the counter-force effect of movable contact spring, armature is to leaving the motion of yoke direction, moving contact also moves under the effect of movable contact spring self counter-force, make two groups of reset contact groups (i.e. two groups of normally-closed contact groups) closure, two groups of set contact sets (i.e. two groups of normally opened contact groups) disconnect.After the pulse voltage, armature is in free state, and movable contact spring and is kept two groups of reset contact groups (i.e. two groups of normally-closed contact groups) in conducting state under self mechanical counter-force effect.
Fig. 1 is the overall structural representation of the magnetic latching relay of existing two groups of contact sets; Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the magnetic latching relay of existing two groups of contact sets, after as can be seen from the figure magnetic circuit is partly assembled and is finished, be folk prescription along the base of laterally packing in open-ended cavity, thereby improve the creepage distance of input and output; Fig. 3 is the decomposing schematic representation of the magnetic circuit part-structure of the magnetic latching relay of existing two groups of contact sets; Fig. 4 is the schematic diagram that the magnetic circuit of the magnetic latching relay of existing two groups of contact sets partly is in reset mode; Fig. 5 is the schematic diagram that the magnetic circuit of the magnetic latching relay of existing two groups of contact sets partly is in SM set mode.The magnetic latching relay of these two groups of contact sets comprise contact portion, magnetic circuit part, base 1 ' and pushing block 2 '.Contact portion generally include two groups of normally closed static contact spring piece assemblies 7 ', two groups often open static contact spring piece assembly 8 ' and two groups of movable contact spring assemblies 9 ', these assemblies with the plug-in mounting mode pack into base 1 ' in, form stable, contact portion reliably.Magnetic circuit partly generally include U-shaped yoke 32 ', magnet steel 35 ', yoke 36 ', armature 33 ', making leaf spring 37 ', bobbin 31 ' and coil windings 34 '; U-shaped yoke in the magnetic circuit part at one end 321 ' carry out large deformation to flatten, form thin magnetic pole, magnet steel 35 ' pack into and flatten the position, the yoke 36 of packing into then '.At reset mode, magnet steel 35 ' the place place that flattens of yoke 32 ' one ends, yoke 36 ' with the yoke place of flattening with magnet steel 35 ' be clipped in the middle, this moment armature 33 ' under the effect of root making leaf spring 37 ' recuperability, remain on reset position.
When apply in the magnetic loop pulse magnetic flux 51 ' after, armature one end 331 ' will move to yoke drives pushing block 2 ' move simultaneously.When armature 33 ' under the pulse magnetic effect with yoke 32 ' after contacting, magnet steel 35 ' magnetic flux 52 ' process yoke 36 ', armature one end 331 ', yoke one end 321 ' formation loop, with armature 33 ' maintain.This moment, armature 33 ' to pushing block 2 ' exert pressure and being passed on the movable contact spring maintained movable contact spring, made two groups of set contact sets (i.e. two groups of normally opened contact groups) connection.When magnetic circuit being applied a 53 ' time of reverse impulse magnetic field, when 52 ' time of pulse magnetic flux 53 ' be equal to or greater than magnet steel magnetic flux, armature 33 ' under the double action of movable contact spring counter-force, reset reed 37 ' recuperability, be returned to reset mode.Under this state, two groups of reset contact groups (i.e. two groups of normally-closed contact groups) keep on-state, magnet steel 35 ' cut little ice under the effect of movable contact spring self counter-force.
Pushing block 2 ' front end be provided with two arms 21 ', two arms 21 ' front end respectively be provided with a projection 211 ', two groups of movable contact springs 9 ' on then respectively be provided with a breach 91 ', the breach 91 of two projections 211 of pushing block 2 ' front end ' snap in respectively correspondence of two groups of movable contact springs ' in, make and form overlap joint between pushing block and the movable contact spring, when pushing block 2 ' when moving forward, the projection 211 of pushing block 2 ' front end ' meeting is two groups of movable contact springs 9 of ejection ' travel forward respectively, make two groups of movable contact springs 9 ' on moving contact with often open static contact spring piece assembly 8 ' fixed contact contact, and when pushing block 2 ' mobile backward, pushing block 2 ' not to movable contact spring 9 ' application of force, movable contact spring 9 ' dependence self elastic reset.
The advantage of this structure is that the output (being contact sets) of relay and creepage distance, electrical distance between the input (being coil) can reach the reinforced insulation level in the VDE standard.But this existing magnetic latching relay structure is the unbalanced electromagnetic mechanism, and the set end adopts magnet steel to keep, thereby the bouncing time of its two groups of set contact sets is short, the pressure between the contact is big, and electric life is long; And reset terminal is not owing to there is the magnet steel effect, two groups of reset contact groups (i.e. two groups of normally-closed contact groups) only rely on the mechanical elasticity counter-force of movable contact spring to reset naturally, thereby the bouncing time of two groups of reset contact groups (i.e. two groups of normally-closed contact groups) is long, the pressure between the contact is little, electric life is short, and bonding failure easily takes place.Under equal loading condition, the life-span of two groups of reset contact groups (i.e. two groups of normally-closed contact groups) is shorter, and the electric life of two groups of set contact sets (i.e. two groups of normally opened contact groups) is very long.
On the other hand, because pushing block and movable contact spring are bridging arrangement, can only realize the unidirectional delivery of armature displacement, promptly when armature travels forward, its moving displacement amount can pass to movable contact spring by pushing block, and armature resets when moving backward, armature can only drag pushing block and move backward, movable contact spring then relies on self elastic force to restore therefore fully, in reseting procedure, because pushing block is not exerted pressure to movable contact spring, thereby two groups of back contact groups when closed the bouncing time of contact long, cause arc time long, bonding failure easily take place, because of the life-span of back contact group then very short.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of magnetic latching relay of novel two groups of contact sets is provided, be to adopt a kind of novel balanced type magnetic structure on the one hand, make two groups of set contact sets (promptly two groups of normally opened contact windings are logical), two groups of reset contact groups (promptly two groups of normally-closed contact windings are logical) all are to keep by the magnetic force that magnet steel forms, thereby the contact sets pressure of set contact sets and reset contact group, mechanical parameters such as bouncing time are the same substantially, with the switching capability under the even load, the electric life level is also the same substantially, has avoided original inconsistent drawback of bringing; On the other hand, after can making that two groups of normally opened contact groups of relay, two groups of normally-closed contact windings are led to, pushing block all can be exerted pressure with the holding contact on-state, thereby the bouncing time of two pairs of contact sets is all very little, thereby has promoted the ability and the electric life level of contact switch load.The characteristics that have simple in structure, low cost of manufacture, can suit to produce in enormous quantities.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of magnetic latching relay of novel two groups of contact sets comprises contact portion, magnetic circuit part, base and pushing block; This contact portion includes two groups of normally closed static contact spring piece assemblies, two groups and often opens static contact spring piece assembly and two groups of movable contact spring assemblies, and each assembly is respectively charged in the base in the plug-in mounting mode; This magnetic circuit partly is the balanced type magnetic structure; This pushing block one end is provided with two arms along its direction of motion, and two arm institute opposed inside are respectively equipped with a draw-in groove, and the middle part of each draw-in groove is respectively equipped with a projection; Two movable contact spring institute opposite external side limits are respectively equipped with a breach; The outer side edges of two movable contact springs is clipped in respectively in the draw-in groove of correspondence of two arms of pushing block, the breach of the outer side edges of two movable contact springs respectively with the projection holding mutually of two draw-in grooves.
Described balanced type magnetic structure comprises U-shaped yoke, magnet steel, armature, bobbin and coil windings; One arm of U-shaped yoke passes the hole of bobbin, and another arm of U-shaped yoke is arranged on the outside of coil windings; Described armature is contained in outside the oral area of yoke, the centre of armature is provided with the rotating shaft that can make its two ends carry out the seesaw-type motion, this rotating shaft is located at corresponding to the medium position between the yoke two arm terminations, to carry out seesaw-type when motion at armature, the two ends of armature can alternately rely on correspondence one end in the yoke two ends; Described magnet steel is mounted in the armature one side towards yoke, and contains between the two arm terminations of yoke oral area and do not contact with two arm terminations of yoke; The magnetizing direction of this magnet steel is parallel with two arms of U-shaped yoke, in the time of can alternately relying on yoke at the two ends of armature, alternately forms the magnetic loop of different directions accordingly in armature and yoke.
One side towards yoke in the described armature is provided with groove, and described magnet steel is mounted in the groove of armature.
Described armature is contained on the bobbin, and the rotating shaft of armature is a projection shape structure, and bobbin is provided with the first recessed mortar of the projection shape structure that can support armature.
Described armature is contained on the bobbin, and the rotating shaft of armature is the draw-in groove structure, and bobbin is provided with the first protruding arm of the draw-in groove structure that can support armature.
Described armature is contained on the base, and the rotating shaft of armature is projection shape structure or draw-in groove structure, and base is provided with the second recessed mortar or the second protruding arm that can match with described projection shape structure or draw-in groove structure with supporting armature.
The top of the draw-in groove of described pushing block is v-shaped structure, and the bottom of draw-in groove is the inverted V-shaped structure.
The groove width at the middle part of the draw-in groove of described pushing block and the thickness of movable contact spring are suitable.
The height of the height of the projection of the draw-in groove of described pushing block and the breach of movable contact spring is suitable.
In the described armature dorsad the middle part of the one side of yoke outwards be provided with a projection.
The magnetic latching relay of a kind of novel two groups of contact sets of the present utility model, the two ends of U-shaped yoke all do not need to carry out complicated flattening, the hole of bobbin is passed in the termination of one arm of U-shaped yoke, and promptly this arm places coil windings, and the termination of this arm constitutes the reset terminal of U-shaped yoke; Another arm of U-shaped yoke places the outside of bobbin, promptly places the outside of coil windings, and the termination of this arm constitutes the set end of U-shaped yoke; A side plate of bobbin places the openend of U-shaped yoke; Armature then is made of the working of plastics of armature body and fixed armature body, is processed with the groove that is used to mount magnet steel on the armature body, and the armature body embeds in the plastics by injection molded and obtains armature, and the rotating shaft of armature is made by working of plastics.Utilize the magnet steel on the armature, rely on the set end of U-shaped yoke at armature after, can produce magnetic force remains on the U-shaped yoke by armature set end by the magnetic loop that a part constituted of magnet steel, yoke set end, armature; And rely on the reset terminal of U-shaped yoke at armature after, can produce magnetic force remains on the U-shaped yoke by armature reset terminal by the magnetic loop that a part constituted of magnet steel, yoke reset terminal, armature.
The magnetic latching relay of a kind of novel two groups of contact sets of the present utility model, pushing block one end is provided with two arms along its direction of motion, and two arm institute opposed inside are respectively equipped with a draw-in groove, and the middle part of each draw-in groove is respectively equipped with a projection; The outer side edges of two movable contact springs is clipped in respectively in the draw-in groove of correspondence of two arms of pushing block, the breach of the outer side edges of two movable contact springs respectively with the projection holding mutually of two draw-in grooves, and the cooperating of the projection of the breach by movable contact spring and draw-in groove, make two movable contact springs on thickness direction, clamp structure with pushing block formation.When the armature of relay travels forward, armature drives pushing block and moves forward, pushing block utilizes its draw-in groove that the clamping of movable contact spring is driven two movable contact springs respectively and travels forward, and realizes that moving contact connects with often opening fixed contact, and pushing block is pushed down two movable contact spring holding contact on-states; When the armature of relay moves backward, armature pulling pushing block moves backward, pushing block utilizes its draw-in groove that the clamping of movable contact spring is driven two movable contact springs respectively again and moves backward, realizes that moving contact and normally closed fixed contact connect pushing block pulling movable contact spring holding contact on-state.
The magnetic latching relay of a kind of novel two groups of contact sets of the present utility model, its magnetic structure is a balance type structure, when relay is in reset mode (two groups of normally-closed contact group closures), the magnetic flux of magnet steel forms the flux circuit of a direction through reset terminal, armature, the air loop of U-shaped yoke, armature is remained on the reset terminal of U-shaped yoke, and pushing block remains on reset mode (two groups of normally-closed contact group closures, two groups of normally opened contact group off-states) with movable contact spring simultaneously; After relay coil is applied pulse voltage, produce a pulse magnetic flux opposite in the relay magnetic conductive loop with the magnet steel flow direction, when the pulse magnetic flux is suitable with magnet steel maintenance magnetic flux, armature reaches balance in the power that reset terminal is subjected to, and stimulated the menstrual flow another air gap of armature and yoke of pulsed magnetic forms loop, produce electromagnetic attraction, make the other end of armature rotate to U-shaped yoke set end, simultaneously pushing block drives the movable contact spring motion, makes two groups of set contact sets (i.e. two groups of normally opened contact groups) closure, two groups of reset contact groups (i.e. two groups of normally-closed contact groups) disconnect; After pulse voltage disappears, the magnetic flux of the field structure of magnet steel forms the flux circuit of another direction through set end, armature, the air loop of U-shaped yoke, armature is remained on the set end of U-shaped yoke, and pushing block remains on SM set mode (two groups of normally opened contact group closures, two groups of normally-closed contact group off-states) with movable contact spring simultaneously.
When relay resets if desired, when promptly needing relay to become reset mode (two groups of normally-closed contact group group closures) by SM set mode (two groups of normally opened contact group closures), only need apply an opposite direction pulse voltage to the coil of relay gets final product, after applying the opposite direction pulse voltage, produce in the relay magnetic conductive loop one with the opposite magnetic flux of magnet steel flow direction that is in the set end, when the pulse magnetic flux is suitable with the maintenance magnetic flux that is in set end magnet steel, armature reaches balance in the power that the set end is subjected to, and stimulated the menstrual flow another air gap of armature and yoke of pulsed magnetic forms loop, produce electromagnetic attraction, armature rotates to the reset terminal of U-shaped yoke, simultaneously pushing block drives the movable contact spring motion, makes two groups of reset contact groups (i.e. two groups of normally-closed contact groups) closure, two groups of set contact sets (i.e. two groups of normally opened contact groups) disconnect; After pulse voltage disappears, the magnetic flux of magnet steel forms flux circuit through reset terminal, armature, the air loop of U-shaped yoke, armature is remained on the reset terminal of U-shaped yoke, and pushing block remains on reset mode (two groups normally opened contact group disconnect, two groups of normally-closed contact group closure states) with movable contact spring simultaneously.
The beneficial effects of the utility model are, are provided with two arms owing to adopted at pushing block one end along its direction of motion, and two arm institute opposed inside are respectively equipped with a draw-in groove, and the middle part of each draw-in groove is respectively equipped with a projection; The outer side edges of two movable contact springs then is clipped in respectively in the draw-in groove of correspondence of two arms of pushing block, two movable contact springs is formed with pushing block on thickness direction clamp structure; After this structure can make that two groups of normally opened contact groups of relay, two groups of normally-closed contact windings are led to, pushing block all can be exerted pressure with the holding contact on-state, thereby the bouncing time of two pairs of contact sets is all very little, thereby has promoted the ability and the electric life level of contact switch load.Owing to adopted the balanced type magnetic structure, make two groups of set contact sets (promptly two groups of normally opened contact windings are logical), two groups of reset contact groups (promptly two groups of normally-closed contact windings are logical) all are to keep by the magnetic force that magnet steel forms, thereby mechanical parameters such as the contact sets pressure of set contact sets and reset contact group, bouncing time are the same substantially, also the same substantially with the switching capability under the even load, electric life level, avoided original inconsistent drawback of bringing.The characteristics that the utlity model has simple in structure, low cost of manufacture, can suit to produce in enormous quantities.
Below in conjunction with drawings and Examples the utility model is described in further detail; But the magnetic latching relay of a kind of novel two groups of contact sets of the present utility model is not limited to embodiment.
Description of drawings
Fig. 1 is the overall structural representation of the magnetic latching relay of existing two groups of contact sets;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of the magnetic latching relay of existing two groups of contact sets;
Fig. 3 is the decomposing schematic representation of magnetic circuit part-structure of the magnetic latching relay of existing two groups of contact sets;
Fig. 4 is the schematic diagram that the magnetic circuit of the magnetic latching relay of existing two groups of contact sets partly is in reset mode;
Fig. 5 is the schematic diagram that the magnetic circuit of the magnetic latching relay of existing two groups of contact sets partly is in SM set mode;
Fig. 6 is the general structure schematic diagram of the embodiment of the utility model patent;
Fig. 7 is the STRUCTURE DECOMPOSITION schematic diagram of the embodiment of the utility model patent;
Fig. 8 is the magnetic circuit part-structure schematic diagram of the embodiment of the utility model patent;
Fig. 9 is the magnetic circuit part reset mode schematic diagram of the embodiment of the utility model patent;
Figure 10 is the magnetic circuit part SM set mode schematic diagram of the embodiment of the utility model patent;
Figure 11 is the local structure schematic diagram of pushing block of the present utility model.
Embodiment
Embodiment, to shown in Figure 11, the magnetic latching relay of a kind of novel two groups of contact sets of the present utility model comprises contact portion, magnetic circuit part, base 1 and pushing block 2 referring to Fig. 6; Contact portion comprises that two groups of normally closed static contact spring piece assemblies 7, two groups often open static contact spring piece assembly 8 and two groups of movable contact spring assemblies 9, and these assemblies are packed in the plug-in mounting mode in the slot of base 1, forms stable, contact portion reliably; This magnetic circuit partly is the balanced type magnetic structure; These pushing block 2 one ends are provided with 21 opposed inside of 21, two arms of two arms along its direction of motion and are respectively equipped with a draw-in groove 211, and the middle part of each draw-in groove 211 is respectively equipped with a projection 212; 9 opposite external side limits of two movable contact springs are respectively equipped with a breach 91; The outer side edges of two movable contact springs 9 is clipped in respectively in the draw-in groove 211 of correspondence of two arms of pushing block, the breach 91 of the outer side edges of two movable contact springs respectively with projection 212 holding mutually of two draw-in grooves, thereby the both sides of movable contact spring 9 are positioned in the draw-in groove 211 of two arms of pushing block; The draw-in groove 211 of pushing block can drive movable contact spring 9 and move forward or backward; Moving contact (being fixed on the movable contact spring 9) is with after fixed contact (be fixed on normally closed static contact spring piece, often open on the static contact spring piece) contacts, and movable contact spring 9 is a fulcrum with the contact contact point, and twisting forward or backward realizes contact overtravel.
Wherein:
The balanced type magnetic structure comprises U-shaped yoke 32, magnet steel 35, armature 33, bobbin 31 and coil windings 34; One arm of U-shaped yoke 32 passes the hole of bobbin 31, and another arm of U-shaped yoke 32 is arranged on the outside of coil windings 34; Described armature 33 is contained in outside the oral area of yoke 32, the centre of armature 33 is provided with the rotating shaft 331 that can make its two ends carry out the seesaw-type motion, this rotating shaft 331 is located at corresponding to the medium position between 32 liang of arm terminations of yoke, to carry out seesaw-type when motion at armature 33, the two ends of armature 33 can alternately rely on correspondence one end in yoke 32 two ends; Described magnet steel 35 is mounted in the armature 33 one side towards yoke 32, and contains between the two arm terminations of yoke 32 oral areas and do not contact with two arm terminations of yoke 32; The magnetizing direction of this magnet steel 35 is parallel with two arms of U-shaped yoke 32, in the time of can alternately relying on yoke 32 at the two ends of armature 33, alternately forms the magnetic loop of different directions accordingly in armature 33 and yoke 32;
One side towards yoke in the armature 33 is provided with groove, and described magnet steel 35 is mounted in the groove of armature;
Certainly, a kind of structure of distortion is that the rotating shaft of armature is the draw-in groove structure, and bobbin is provided with the first protruding arm of the draw-in groove structure that can support armature;
Certainly, a kind of design in addition also can be that armature is contained on the base, and the rotating shaft of armature is projection shape structure or draw-in groove structure, and base is provided with the second recessed mortar or the second protruding arm that can match with described projection shape structure or draw-in groove structure with supporting armature.
In the armature 33 dorsad the middle part of the one side of yoke outwards be provided with a projection 332, this projection 332 is not influencing under the prerequisite that armature 33 rotates, and can effectively reduce the slit of armature and shell medial surface, the anti-drop impact capacity of raising relay;
The top 2111 of draw-in groove 211 is v-shaped structure, and the bottom 2112 of draw-in groove is the inverted V-shaped structure;
The thickness of the groove width at the middle part of draw-in groove 211 and movable contact spring 9 is suitable;
The height of the height of the projection 212 of draw-in groove and the breach 91 of movable contact spring is suitable.
The two ends of U-shaped yoke 32 all do not need to carry out complicated flattening (in the prior art, a wherein end of U-shaped yoke need be flattened), this just makes the processing of U-shaped yoke become simple, the hole of bobbin is passed in the termination of one arm of U-shaped yoke 32, promptly this arm places coil windings 34, and the termination of this arm constitutes the reset terminal 321 of U-shaped yoke; Another arm of U1 shape yoke 32 places the outside of bobbin 31, promptly places the outside of coil windings 34, and the termination of this arm constitutes the set end 322 of U-shaped yoke; A side plate 311 of bobbin places the openend of U-shaped yoke 32; 33 working of plasticss by armature body and fixed armature body of armature constitute, and are processed with the groove that is used to mount magnet steel on the armature body, and the armature body embeds in the plastics by injection molded and obtains armature, and the rotating shaft of armature 331 is made by working of plastics.Utilize the magnet steel 35 on the armature 33, rely on the set end 322 of U-shaped yoke at armature 33 after, can produce magnetic force remains on the U-shaped yoke by armature set end 322 by the magnetic loop that a part constituted of magnet steel 35, yoke set end 322, armature 33; And rely on the reset terminal 321 of U-shaped yoke at armature 33 after, can produce magnetic force remains on the U-shaped yoke by armature 33 reset terminal 321 by the magnetic loop that a part constituted of magnet steel 35, yoke reset terminal 321, armature 33.
The magnetic latching relay of a kind of novel two groups of contact sets of the present utility model, pushing block 2 one ends are provided with two arms 21 along its direction of motion, two arm institute opposed inside are respectively equipped with a draw-in groove 211, and the middle part of each draw-in groove 211 is respectively equipped with a projection 212; The outer side edges of two movable contact springs 9 is clipped in respectively in the draw-in groove 211 of correspondence of two arms of pushing block, the breach 91 of the outer side edges of two movable contact springs respectively with projection 212 holding mutually of two draw-in grooves, and the cooperating of the projection of the breach by movable contact spring and draw-in groove, make two movable contact springs 9 on thickness direction, clamp structure with pushing block 2 formation.When the armature 33 of relay travels forward, armature 33 drives pushing block 2 and moves forward, pushing block 2 utilizes the clamping of 211 pairs of movable contact springs of its draw-in groove to drive two movable contact springs 9 respectively and travels forward, realize moving contact and often open the fixed contact connection, pushing block 2 is pushed down two movable contact springs, 9 holding contact on-states; When the armature 33 of relay moves backward, armature 33 pulling pushing blocks 2 move backward, pushing block 2 utilizes the clamping of 211 pairs of movable contact springs of its draw-in groove to drive two movable contact springs 9 respectively again and moves backward, realize the connection of moving contact and normally closed fixed contact, pushing block 2 is held movable contact springs 9 holding contact on-states.
The magnetic latching relay of a kind of novel two groups of contact sets of the present utility model, its magnetic structure is a balance type structure, when relay is in reset mode (two groups of normally-closed contact group closures), the magnetic flux 51 of magnet steel 35 is through the reset terminal 321 of U-shaped yoke, armature 33, air loop forms the flux circuit of a direction, armature 33 is remained on the reset terminal 321 of U-shaped yoke, be the reset terminal 321 that an end 333 of armature 33 relies on the U-shaped yoke, pushing block 2 remains on reset mode (two groups of normally-closed contact group closures with two movable contact springs 9 simultaneously, two groups of normally opened contact group off-states); After relay coil is applied pulse voltage, produce a magnetic flux 52 opposite in the relay magnetic conductive loop with magnet steel magnetic flux 51 directions, when pulse magnetic flux 52 and magnet steel keep magnetic flux 51 quite, armature 33 reaches balance in the power that reset terminal 321 is subjected to, and pulse magnetic flux 52 is through armature 33 another air gap 61 formation loops with yoke, produce electromagnetic attraction, make the other end 334 of armature rotate to U-shaped yoke set end 322, simultaneously pushing block 2 drives 9 motions of two movable contact springs, makes two groups of set contact sets (i.e. two groups of normally opened contact groups) closure, two groups of reset contact groups (i.e. two groups of normally-closed contact groups) disconnect; After pulse voltage disappears, the magnetic flux 53 of magnet steel 35 forms the flux circuit of another direction through set end 322, armature 33, the air loop of U-shaped yoke, armature 33 is remained on the set end 322 of U-shaped yoke, be the set end 322 that the other end 334 of armature 33 relies on the U-shaped yoke, pushing block 2 remains on SM set mode (two groups of normally opened contact group closures, two groups of normally-closed contact group off-states) with movable contact spring simultaneously.
When relay resets if desired, when promptly needing relay to become reset mode (two groups of normally-closed contact group group closures) by SM set mode (two groups of normally opened contact group closures), only need apply an opposite direction pulse voltage to the coil of relay gets final product, after applying the opposite direction pulse voltage, produce in the relay magnetic conductive loop one with the opposite magnetic flux 54 of magnet steel magnetic flux 53 directions that is in the set end, when pulse magnetic flux 54 with the maintenance magnetic flux 53 that is in set end magnet steel quite the time, armature 33 reaches balance in the power that the set end is subjected to, and pulse magnetic flux 54 is through another air gap 62 formation loops of armature and yoke, produce electromagnetic attraction, armature 33 rotates to the reset terminal 321 of U-shaped yoke, simultaneously pushing block 2 drives the movable contact springs motion, makes two groups of reset contact groups (i.e. two groups of normally-closed contact groups) closure, two groups of set contact sets (i.e. two groups of normally opened contact groups) disconnect; After pulse voltage disappears, the magnetic flux 51 of magnet steel 35 forms flux circuit through reset terminal 321, armature 33, the air loop of U-shaped yoke, armature 33 is remained on the reset terminal 321 of U-shaped yoke, and pushing block 2 remains on reset mode (i.e. two groups of normally opened contact group disconnections, two groups of normally-closed contact group closure states) with two movable contact springs simultaneously.
The foregoing description only is used for further specifying the magnetic latching relay of a kind of novel two groups of contact sets of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection range of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. the magnetic latching relay of novel two groups of contact sets comprises contact portion, magnetic circuit part, base and pushing block; This contact portion includes two groups of normally closed static contact spring piece assemblies, two groups and often opens static contact spring piece assembly and two groups of movable contact spring assemblies, and each assembly is respectively charged in the base in the plug-in mounting mode; It is characterized in that: this magnetic circuit partly is the balanced type magnetic structure; This pushing block one end is provided with two arms along its direction of motion, and two arm institute opposed inside are respectively equipped with a draw-in groove, and the middle part of each draw-in groove is respectively equipped with a projection; Two movable contact spring institute opposite external side limits are respectively equipped with a breach; The outer side edges of two movable contact springs is clipped in respectively in the draw-in groove of correspondence of two arms of pushing block, the breach of the outer side edges of two movable contact springs respectively with the projection holding mutually of two draw-in grooves.
2. the magnetic latching relay of novel two groups of contact sets according to claim 1 is characterized in that: described balanced type magnetic structure comprises U-shaped yoke, magnet steel, armature, bobbin and coil windings; One arm of U-shaped yoke passes the hole of bobbin, and another arm of U-shaped yoke is arranged on the outside of coil windings; Described armature is contained in outside the oral area of yoke, the centre of armature is provided with the rotating shaft that can make its two ends carry out the seesaw-type motion, this rotating shaft is located at corresponding to the medium position between the yoke two arm terminations, to carry out seesaw-type when motion at armature, the two ends of armature can alternately rely on correspondence one end in the yoke two ends; Described magnet steel is mounted in the armature one side towards yoke, and contains between the two arm terminations of yoke oral area and do not contact with two arm terminations of yoke; The magnetizing direction of this magnet steel is parallel with two arms of U-shaped yoke, in the time of can alternately relying on yoke at the two ends of armature, alternately forms the magnetic loop of different directions accordingly in armature and yoke.
3. the magnetic latching relay of novel two groups of contact sets according to claim 2 is characterized in that: the one side towards yoke in the described armature is provided with groove, and described magnet steel is mounted in the groove of armature.
4. the magnetic latching relay of novel two groups of contact sets according to claim 2 is characterized in that: described armature is contained on the bobbin, and the rotating shaft of armature is a projection shape structure, and bobbin is provided with the first recessed mortar of the projection shape structure that can support armature.
5. the magnetic latching relay of novel two groups of contact sets according to claim 2 is characterized in that: described armature is contained on the bobbin, and the rotating shaft of armature is the draw-in groove structure, and bobbin is provided with the first protruding arm of the draw-in groove structure that can support armature.
6. the magnetic latching relay of novel two groups of contact sets according to claim 2, it is characterized in that: described armature is contained on the base, the rotating shaft of armature is projection shape structure or draw-in groove structure, and base is provided with the second recessed mortar or the second protruding arm that can match with described projection shape structure or draw-in groove structure with supporting armature.
7. the magnetic latching relay of novel two groups of contact sets according to claim 1 is characterized in that: the top of the draw-in groove of described pushing block is v-shaped structure, and the bottom of draw-in groove is the inverted V-shaped structure.
8. the magnetic latching relay of novel two groups of contact sets according to claim 1 is characterized in that: the groove width at the middle part of the draw-in groove of described pushing block and the thickness of movable contact spring are suitable.
9. the magnetic latching relay of novel two groups of contact sets according to claim 1 is characterized in that: the height of the height of the projection of the draw-in groove of described pushing block and the breach of movable contact spring is suitable.
10. the magnetic latching relay of novel two groups of contact sets according to claim 2 is characterized in that: in the described armature dorsad the middle part of the one side of yoke outwards be provided with a projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920165117XU CN201570456U (en) | 2009-12-17 | 2009-12-17 | Novel magnetic latching relay for two sets of contact sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920165117XU CN201570456U (en) | 2009-12-17 | 2009-12-17 | Novel magnetic latching relay for two sets of contact sets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570456U true CN201570456U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920165117XU Expired - Lifetime CN201570456U (en) | 2009-12-17 | 2009-12-17 | Novel magnetic latching relay for two sets of contact sets |
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| Country | Link |
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| CN (1) | CN201570456U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163519A (en) * | 2011-04-23 | 2011-08-24 | 哈斯科继电器和电子元件国际有限公司 | High-power automatic reset magnetic latching relay |
| CN103367046A (en) * | 2013-05-31 | 2013-10-23 | 厦门宏发电声股份有限公司 | Small-size magnetic latching power relay |
| CN104201058A (en) * | 2014-09-12 | 2014-12-10 | 浙江凡华电子有限公司 | Electromagnetic relay |
| CN107706053A (en) * | 2017-10-10 | 2018-02-16 | 三友联众集团股份有限公司 | A kind of reseting shrapnel twisting type relay |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
| CN109859992A (en) * | 2019-02-14 | 2019-06-07 | 江小林 | A kind of relay |
-
2009
- 2009-12-17 CN CN200920165117XU patent/CN201570456U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163519A (en) * | 2011-04-23 | 2011-08-24 | 哈斯科继电器和电子元件国际有限公司 | High-power automatic reset magnetic latching relay |
| CN103367046A (en) * | 2013-05-31 | 2013-10-23 | 厦门宏发电声股份有限公司 | Small-size magnetic latching power relay |
| CN103367046B (en) * | 2013-05-31 | 2016-08-24 | 漳州宏发电声有限公司 | A kind of small size magnetic keeps power relay |
| CN104201058A (en) * | 2014-09-12 | 2014-12-10 | 浙江凡华电子有限公司 | Electromagnetic relay |
| CN107706053A (en) * | 2017-10-10 | 2018-02-16 | 三友联众集团股份有限公司 | A kind of reseting shrapnel twisting type relay |
| CN108682597A (en) * | 2018-05-31 | 2018-10-19 | 厦门宏发汽车电子有限公司 | A kind of miniaturized relays can anti-soft flocks pollution quiet spring plug-in mounting structure |
| CN108682597B (en) * | 2018-05-31 | 2023-11-24 | 厦门宏发汽车电子有限公司 | Static spring plug-in mounting structure capable of resisting filth pollution of miniaturized relay |
| CN109859992A (en) * | 2019-02-14 | 2019-06-07 | 江小林 | A kind of relay |
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