CN202678234U - A Combination Push Card Duplex Spring Type Magnetic Latching Relay - Google Patents

Abstract

A combined push card duplex spring type magnetic latching relay comprises a permanent magnet assembly, a coil assembly, a lead-out sheet assembly, a movable reed assembly, an armature and a shell, wherein the permanent magnet assembly comprises two permanent magnets and a yoke, the two permanent magnets are positioned at front and back opposite positions on the upper portion of the coil assembly, the yoke is positioned outside the coil assembly, and a yoke end extends out of the upper portion of the coil assembly; the leading-out piece group consists of an upper left leading-out piece, an upper right leading-out piece, a lower left leading-out piece and a lower right leading-out piece which are respectively positioned at four corners of the permanent magnet assembly, wherein the upper left leading-out piece is provided with two left static contacts, and the upper right leading-out piece is provided with two right static contacts; the utility model relates to a novelty, it is rational in infrastructure, it is convenient to assemble, and the action synchronism of left and right movable contact spring is good, and the state of moving, stationary contact or separation is stable, and the operational reliability is high.

Description

A Combination Push Card Duplex Spring Type Magnetic Latching Relay

technical field

The utility model relates to a magnetic holding relay, in particular to a combined pushing card double spring type magnetic holding relay.

Background technique

Magnetic latching relay, the closed or open state is only held by the magnetic force generated by the permanent magnet, and the transition between the closed and open states depends on a certain width of positive DC or reverse DC pulse voltage to excite the coil to trigger the action of the linkage parts And completed an electrical control device. The magnetic latching relay has the characteristics of only pulse excitation, low power consumption, strong load, safety and reliability, etc., and is widely used in automatic control circuits, especially in high-current power systems.

At present, magnetic latching relays are divided into armature direct-acting magnetic latching relays and armature rotating magnetic latching relays according to the different armature action methods. Further improvements are needed to improve work reliability and synchronization.

Contents of the invention

The purpose of the utility model is to provide a combination push card dual spring type magnetic latching relay with reasonable structure, convenient assembly, high reliability and good synchronization.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a combined push card double spring type magnetic latching relay, including a permanent magnet assembly, a coil assembly, a lead-out piece set, a moving reed set, an armature and a housing, The permanent magnet assembly includes two permanent magnets and a yoke. The two permanent magnets are located at the front and back of the upper part of the coil assembly. The yoke is located outside the coil assembly. The upper left lead-out piece, the upper right lead-out piece, the lower left lead-out piece and the lower right lead-out piece are composed of the four corners of the module. The upper left lead-out piece is provided with two left static contacts, and the upper right lead-out piece is provided with two right static contacts; The moving reed group is composed of a left moving reed and a right moving reed. The lower end of the left moving reed is fixedly connected to the lower left lead-out piece, and the upper end is provided with two left moving contacts corresponding to the positions of the left static contacts. The lower end of the reed is fixedly connected to the lower right lead-out piece, and the upper end is provided with two right moving contacts corresponding to the position of the right static contact; the columnar armature is located below the end of the yoke, between the front and rear permanent magnets, and the armature is fixed vertically In the middle of the combination push card, it can drive the combination push card to move up and down; the left moving reed and the right moving reed are in a horizontal Z shape; There are a left push rod and a right push rod that can flip the left and right moving reeds horizontally; corresponding to the position of the left moving contact, there is a left baffle in the distance from the left moving contact, corresponding to the position of the right moving contact, and the right A right baffle is arranged on the inside of the movable contact interval; double springs are arranged between the left baffle and the left movable contact, and between the right baffle and the right movable contact.

The combined push card is assembled from a front panel and a rear panel. The left and right ends of the rear panel are respectively vertically provided with a left push rod and a right push rod. The rear panel is also vertically provided with two card posts, and the front end of the card post has an undercut ; The positions corresponding to the left and right push rods on the front panel are provided with guide holes suitable for the push rods, and the positions corresponding to the posts are provided with bayonets suitable for the undercuts; There is a round hole for clamping the neck of the cylindrical armature.

The outer surface of the rear panel of the combined push card protrudes left and right symmetrically with guide bumps, and the inner surface of the housing is longitudinally provided with guide grooves matching the guide bumps at positions corresponding to the combined push card guide bumps.

The double spring is composed of two helical springs, and the bottoms of the two helical springs are connected by steel wires.

The beneficial effects of the utility model are: due to the adoption of the above-mentioned structure, the left and right push rods can simultaneously bounce off the left and right moving reeds during the downward movement of the combined pushing card through the armature, so that the utility model has a higher Synchronization; the left and right moving reeds are not only relying on their own deformation force to return to the closed position, but also receive the thrust of the double spring, which effectively ensures the contact between the dynamic and static contacts, thereby improving the reliability of the utility model; the double spring The one-piece structure design facilitates the positioning and installation of the spring; the split structure design of the combination push card facilitates the assembly of the armature and the combination push card; Guided by sliding in the guide groove, it can ensure that the combined push card will not tilt left and right during the movement process.

The utility model has the advantages of novel design, reasonable structure, convenient assembly, good synchronization of left and right moving reeds, stable contact or separation of moving and static contacts, and high working reliability.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the utility model;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is a three-dimensional exploded view of the combined push clamp armature in the utility model;

Fig. 4 is the structural representation of duplex spring in the utility model;

Fig. 5 is a structural schematic diagram of the contact state of the dynamic and static contacts of the utility model;

Fig. 6 is a structural schematic diagram of the separation state of the dynamic and static contacts of the utility model.

The labels in the figure are: (1) Permanent magnet assembly, (2) Coil assembly, (3) Leading sheet group, (4) Moving reed group, (5) Armature, (6) Combined push card, (7) Duplex spring, (8) housing, (11) permanent magnet, (12) yoke, (13) yoke end, (31) upper left leading piece, (32) upper right leading piece, (33) lower left Lead-out piece, (34) lower right lead-out piece, (35) left static contact, (36) right static contact, (41) left moving reed, (42) right moving reed, (43) left moving contact , (44) right moving contact, (61) left push rod, (62) right push rod, (63) front panel, (64) rear panel, (65) card post, (66) undercut, (67) Guide hole, (68) Bayonet, (69) Round hole, (71) Left baffle, (72) Right baffle, (73) Coil spring, (74) Steel wire, (81) Guide bump, (82) The guide groove.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Figures 1 and 2, the utility model is a combined push card double-connected spring-type magnetic latching relay, which includes a permanent magnet assembly 1, a coil assembly 2, a lead sheet group 3, a moving reed group 4, an armature 5 and a housing 8, The permanent magnet assembly 1 includes two permanent magnets 11 and a yoke iron 12, the two permanent magnets 11 are located at the front and back relative positions on the upper part of the coil assembly 2, the yoke iron 12 is located outside the coil assembly 2, and a yoke iron end 13 protrudes above the coil assembly 2 The lead-out piece group 3 is made up of the upper left lead-out piece 31, the upper right lead-out piece 32, the lower left lead-out piece 33 and the lower right lead-out piece 34 respectively located at the four corners of the permanent magnet assembly 1, and the upper left lead-out piece 31 is provided with two left static Contact 35, upper right lead-out piece 32 is provided with two right static contacts 36; Moving reed group 4 is made up of left moving reed 41 and right moving reed 42, and the lower end of left moving reed 41 and lower left lead-out piece 33 fixed connection, the upper end is provided with two left moving contacts 43 corresponding to the left static contact 35 positions, the lower end of the right moving reed 42 is fixedly connected with the lower right lead-out piece 34, and the upper end is provided with the right static contact 36 positions The corresponding two right moving contacts 44; the columnar armature 5 is located inside the coil assembly 2, between the permanent magnet 11 and the yoke end 13, and the armature 5 is vertically fixed in the middle of the combination push card 6, which can drive the combination push card 6 Move up and down; the left moving reed 41 and the right moving reed 42 are all horizontal Z-shaped; The left push rod 61 and the right push rod 62 of the right moving reed 41, 42; corresponding to the position of the left moving contact 43, a left baffle plate 71 is arranged in the distance from the left moving contact 43, corresponding to the position of the right moving contact 44, A right baffle 72 is arranged on the inside at a distance from the right movable contact 44 ; double springs 7 are arranged between the left baffle 71 and the left movable contact 43 , and between the right baffle 72 and the right movable contact 44 .

Referring to Fig. 3, the combined pushing card 6 is assembled by a front panel 63 and a rear panel 64, the left and right ends of the rear panel 64 are vertically provided with a left push rod 61 and a right push rod 62 respectively, and the rear panel 64 is also vertically provided with Two clamping columns 65, the front end of the clamping column 65 has an undercut 66; the position corresponding to the left and right push rods 61, 62 on the front panel 63 is provided with a guide hole 67 suitable for the push rods 61, 62, corresponding to the clamping column 65 A bayonet 68 matching the undercut 66 is provided at the position; the middle of the assembled front and rear panels 63, 64 is provided with a circular hole 69 for clamping the neck of the cylindrical armature 5. The outer surface of the rear panel 64 of the combined push card 6 protrudes left and right symmetrically with guide bumps 81, and the inner surface of the housing 8 corresponds to the position of the combined push card 6 guide bumps 81. Matched guide groove 82.

Referring to FIG. 4 , the double spring 7 is composed of two helical springs 73 , and the bottoms of the two helical springs 73 are connected by a steel wire 74 .

Referring to Fig. 5, the armature 5 is subjected to the suction force of the yoke end 13, and drives the combined push card 6 to be positioned at the upper position. At this time, between the left push rod 61 and the left moving reed 41 of the combined push card 6, between the right push rod 62 and the All there is gap between the right movable reed 42, and left and right movable reed 41,42 are subjected to the thrust effect of duplex spring 7, make movable contact 43,44 contact with static contact 35,36.

Referring to Fig. 6, when it is necessary to convert the movable contacts 43, 44 and the static contacts 35, 36 from the contact state to the separated state, input a certain DC pulse voltage to the coil assembly 2 to excite the coil, and weaken the magnetic pole of the yoke end 13. Strengthen the magnetic pole of permanent magnet 11 simultaneously, make armature 5 be subjected to the suction force of permanent magnet 11, drive combined push card 6 to move downwards, now the left push rod 61 of combined push card 6 promotes left moving reed 41 to overcome the double spring 7 The thrust bounces inward, and the right push rod 62 pushes the right moving reed 42 to overcome the thrust of the double spring 7 and bounces inward, so that the movable contacts 43, 44 are separated from the static contacts 35, 36.

Claims (4)

1. one kind is made up push card duplex spring magnetic latching relay, comprise permanent magnet assembly, coil block, lead-out tablet group, movable contact spring group, armature and housing, permanent magnet assembly comprises two permanent magnets and yoke, two permanent magnets are positioned at relative position before and after the coil block top, yoke is positioned at the coil block outside, is extended with a yoke end in the coil block top; The lead-out tablet group is comprised of the upper left lead-out tablet that lays respectively at four jiaos of permanent magnet assemblies, upper right lead-out tablet, bottom left lead-out tablet and bottom right lead-out tablet, and upper left lead-out tablet is provided with two left fixed contacts, and upper right lead-out tablet is provided with two right fixed contacts; The movable contact spring group is comprised of left movable contact spring and right movable contact spring, the lower end of left movable contact spring and bottom left lead-out tablet are affixed, the upper end is provided with two the left moving contacts corresponding with left fixed contact position, and the lower end of right movable contact spring and bottom right lead-out tablet are affixed, and the upper end is provided with two the right moving contacts corresponding with right fixed contact position; It is characterized in that: column armature is in the below of yoke end, and between two permanent magnets of front and back, armature vertically is fixed in the middle part of combination push card, can drive the combination push card and move up and down; Left movable contact spring and right movable contact spring all are Z-type sidewards; Corresponding left movable contact spring turning point and right movable contact spring turning point are provided with left push rod and the right push rod that can laterally flick left and right movable contact spring about the combination push card; Corresponding left moving contact position with the inner right baffle-plate that is provided with in left moving contact interval, corresponding right moving contact position, is provided with right baffle plate with right moving contact interval is inner; Between right baffle-plate and the left moving contact, be equipped with the duplex spring between right baffle plate and the right moving contact.

2. combination push card duplex spring magnetic latching relay according to claim 1, it is characterized in that: described combination push card is assembled by front panel and rear board, the left and right end of rear board vertically is provided with respectively left push rod and right push rod, also vertically be provided with two card columns on the rear board, the card column front end is with back-off; The position of corresponding left and right push rod is provided with the pilot hole suitable with push rod on the front panel, and the position of corresponding card column is provided with the bayonet socket suitable with back-off; Middle part after the front and back panels assembling is provided be used to the circular hole that fixes cylindric armature neck.

3. combination push card duplex spring magnetic latching relay according to claim 2, it is characterized in that: the outer surface left and right symmetrically of described combination push card rear board protrudes and is provided with guiding projection, and the position of the corresponding combination of shell inner surface push card guiding projection vertically is provided with the gathering sill suitable with guiding projection.

4. combination push card duplex spring magnetic latching relay according to claim 1, it is characterized in that: described duplex spring is comprised of two helical springs, and two helical spring bottoms connect by steel wire.

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