CN219658626U - Armature component mounting structure of magnetic latching relay and magnetic latching relay - Google Patents

Abstract

The utility model discloses an armature component mounting structure of a magnetic latching relay and the magnetic latching relay, wherein the mounting structure comprises an armature component and a base, wherein two opposite sides of the armature component are respectively provided with a rotating shaft, the two rotating shafts are positioned on the same axis, the base is provided with two retaining walls which are distributed oppositely, the two retaining walls are respectively provided with an axle hole, and the two rotating shafts can be respectively matched in the two axle holes to rotate; one side of at least one shaft hole is provided with an opening, and the distance between two ends of the opening is larger than or equal to the diameter of the rotating shaft; the corresponding rotating shaft of the armature component enters the shaft hole through the opening, and the opening is stopped by a limiting structure which is relatively fixed with the base, so that the rotating shaft is limited to be separated from the opening. The armature component of the utility model does not need to adopt a metal rotating shaft to be rotationally connected with the base, thereby saving parts, reducing cost, having simple structure and assembly, being easy to realize automatic production, not generating plastic scraps in the assembly process and not affecting the stability of relay parameters.

Description

Armature component mounting structure of magnetic latching relay and magnetic latching relay

Technical Field

The present utility model relates to a relay, and more particularly, to an armature component mounting structure of a magnetic latching relay and a magnetic latching relay.

Background

An electromagnetic relay is an electronic control device which is commonly used in automatic control circuits and is actually an "automatic switch" which uses a smaller current to control a larger current, thus playing roles in automatic regulation, safety protection, switching circuits, etc. in the circuit. The magnetic latching relay is used as one of the relays and is characterized in that the opening and closing states of the contacts completely depend on the action of permanent magnet steel. When the opening and closing states of the contacts need to be converted, the conversion can be completed only by exciting pulse electric signals with a certain width to the coil, and then the states of the contacts are kept by the permanent magnets.

The armature component of the magnetic circuit part of the traditional magnetic latching relay is usually provided with a through hole, two opposite retaining walls on the base are respectively provided with a shaft hole, the two shaft holes are distributed relatively, when the armature component is assembled in place, an elongated metal shaft penetrates into the two shaft holes of the base and the through hole of the armature component respectively, so that the armature component is connected with the base in a rotating way, the installation mode has high requirements on the dimensional accuracy of all parts, the assembly difficulty is high, the metal shaft is needed, and the cost is high. Therefore, one rotating shaft is respectively arranged on two opposite sides of the armature component, one sides of the two shaft holes on the base are respectively provided with an opening, and the size of the opening is smaller than the diameter of the shaft hole, so that the rotating shaft can be extruded into the shaft hole through the opening, and the rotating shaft can be limited to be separated from the opening. However, although this approach is better than the previous one, the following disadvantages also exist: the rotating shaft of the armature component enters the shaft hole in an extrusion mode, and plastic scraps are easy to generate in the assembly process so as to influence the stability of relay parameters.

Disclosure of Invention

The utility model provides an armature component mounting structure of a magnetic latching relay and the magnetic latching relay aiming at the technical problems existing in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the armature component mounting structure of the magnetic latching relay comprises an armature component and a base, wherein two opposite sides of the armature component are respectively provided with a rotating shaft, the two rotating shafts are positioned on the same axis, the base is provided with two retaining walls which are distributed oppositely, the two retaining walls are respectively provided with a shaft hole, the two shaft holes are opposite, and the two rotating shafts can be respectively matched in the two shaft holes to rotate; one side of at least one shaft hole is provided with an opening, and the distance between two ends of the opening is larger than or equal to the diameter of the rotating shaft; the corresponding rotating shaft of the armature component enters the shaft hole through the opening, and the opening is stopped by a limiting structure which is relatively fixed with the base, so that the rotating shaft is limited to be separated from the opening.

Further, one of the shaft holes is provided with the opening, one of the rotating shafts of the armature component enters the one of the shaft holes from the opening, and the other rotating shaft of the armature component penetrates through the other shaft hole from the inner side of the retaining wall where the other shaft hole is located.

Further, the same side of the two shaft holes is respectively provided with the openings, and the two rotating shafts of the armature component respectively enter the two shaft holes through the corresponding openings; the number of the limiting structures is two, and the limiting structures are in one-to-one correspondence with the openings of the two shaft holes.

Further, the retaining wall where one of the shaft holes is located is provided with a first chute which is communicated with the opening and is suitable for sliding of one of the rotating shafts, and the first chute penetrates through the inner side surface and the outer side surface of the retaining wall where the first chute is located; the inner side surface of the retaining wall where the other shaft hole is located is provided with a second chute which is communicated with the other shaft hole and suitable for sliding of the other rotating shaft, and the first chute and the second chute are distributed relatively.

Further, the retaining wall where one shaft hole is located is provided with a first chute which leads to an opening of one shaft hole and is suitable for sliding of one shaft, the retaining wall where the other shaft hole is located is provided with a second chute which leads to an opening of the other shaft hole and is suitable for sliding of the other shaft, the first chute and the second chute penetrate through the inner side face and the outer side face of the retaining wall where the first chute and the second chute are located respectively, and the first chute and the second chute are distributed relatively.

Further, the first chute and the second chute are respectively arranged in an inclined manner towards the same direction.

Further, the magnetic latching relay comprises a shell, and the bottom end of the shell is connected with the base; the limiting structure is arranged on the inner side surface of the shell; the limiting structure is a limiting convex rib extending along the height direction of the shell, the outer side face of the retaining wall corresponding to the limiting convex rib is provided with a containing groove which is suitable for containing the limiting convex rib and leading to the opening, and the bottom of the limiting convex rib is stopped at the opening of the corresponding shaft hole.

Further, the limiting structure is provided with an arc surface facing the rotating shaft at the position of the opening, and the arc surface is matched with the periphery of the rotating shaft.

Further, the armature component comprises two armatures, a permanent magnet and a plastic piece, wherein the permanent magnet is fixed and clung between the opposite surfaces of the two armatures through the plastic piece, and the plastic piece is provided with the two rotating shafts.

The utility model further provides a magnetic latching relay, which comprises the armature component mounting structure of the magnetic latching relay.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the armature component is provided with the two rotating shafts, the base is provided with the two shaft holes, and one side of at least one shaft hole is provided with the opening, the armature component of the utility model does not need to be rotationally connected with the base by adopting the metal rotating shaft, thereby saving parts, reducing cost, simultaneously having simple structure and assembly, being easy to realize automatic production, not producing plastic scraps in the assembly process and not influencing the stability of relay parameters.

2. The arrangement of the first chute and the second chute can provide installation guiding function for the armature component, so that the armature component is more convenient to install, the distance between the two retaining walls of the base can be smaller, and stable assembly of the armature component is ensured.

3. The limiting structure is arranged on the shell, so that the limiting structure is free from additional assembly, and the assembly process is further simplified.

The utility model is described in further detail below with reference to the drawings and examples; however, the armature component mounting structure of the magnetic latching relay and the magnetic latching relay of the present utility model are not limited to the embodiments.

Drawings

FIG. 1 is a schematic perspective view of a base of the present utility model;

FIG. 2 is a schematic diagram showing a perspective view of a base according to the first embodiment of the present utility model;

fig. 3 is a schematic perspective view of an armature component of the utility model according to an embodiment;

FIG. 4 is a schematic perspective view of a housing of the present utility model;

fig. 5 is a schematic perspective view showing a combination of a base and an armature component according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a base and armature assembly of the utility model in a combined state according to the first embodiment;

fig. 7 is a cross-sectional view of a base, housing, armature assembly of the present utility model in combination;

FIG. 8 is an enlarged schematic view of portion A of FIG. 7 according to an embodiment;

FIG. 9 is an exploded schematic view of a magnetic latching relay of the present utility model in accordance with an embodiment;

fig. 10 is a schematic perspective view of a first movable contact spring according to an embodiment of the present utility model;

fig. 11 is a schematic perspective view of a second movable contact spring according to an embodiment of the present utility model;

FIG. 12 is a schematic perspective view of a movable spring portion according to an embodiment of the present utility model;

FIG. 13 is a side view of a moving spring portion of the present utility model according to an embodiment;

FIG. 14 is a schematic perspective view of a pusher card of the present utility model;

FIG. 15 is a top view of a pusher card of the present utility model;

FIG. 16 is a schematic perspective view showing a combination of a movable spring part and a push clip according to an embodiment of the present utility model;

FIG. 17 is a side view of a moving spring portion and a pusher card of the present utility model in a combined state;

fig. 18 is a front view (without the housing) of a magnetic latching relay of the present utility model;

FIG. 19 is a cross-sectional view of a magnetic latching relay of the present utility model in accordance with an embodiment;

FIG. 20 is a schematic diagram showing the relationship between electromagnetic attraction force, the reaction force of the movable reed and the displacement of the push card according to the embodiment;

FIG. 21 is a schematic view showing a perspective construction of a base of the present utility model according to a second embodiment;

wherein 1, base, 11/12, retaining wall, 111, one of them shaft hole, 1111/1211, opening, 112, first spout, 121, another shaft hole, 122, second spout, 113, holding groove, 13, partition wall, 2, moving spring part, 21, first moving spring, 211, straight sheet, 212, hollowed hole, 22, second moving spring, 221, first hook, 212, second hook, 223, arched bending part, 23, moving contact, 24, moving spring leading-out sheet, 3, static spring part, 31, static contact, 4, pushing clip, 41, first slot, 42, second slot, 43, holding groove, 5, armature component, 51, armature, 52, plastic piece, 521, one of them rotating shaft, 522, another rotating shaft, 523, pushing part, 5231, rod body, 6, coil assembly, 61, coil frame, 62, coil, 63, iron core, 64, yoke, 7, housing, 71, spacing rib, 711, cambered surface.

Detailed Description

In the present disclosure, the terms "first," "second," and the like are used merely to distinguish between similar objects and not necessarily to describe a particular sequence or order, nor are they to be construed as indicating or implying a relative importance. In the description, the orientation or positional relationship indicated by "upper", "left", etc. is used based on the orientation or positional relationship shown in the drawings for convenience of describing the present utility model only, and is not intended to indicate or imply that the apparatus referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present utility model. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, in the description of the present utility model, unless otherwise indicated, "at least one" means one or more, and "a plurality" means two or more.

Example 1

Referring to fig. 1-8, an armature installation structure of a magnetic latching relay of the present utility model includes an armature component 5 and a base 1, wherein two opposite sides of the armature component 5 are respectively provided with a rotating shaft, and two rotating shafts 521, 522 are located on the same axis. The base 1 is provided with two retaining walls 11 and 12 which are distributed oppositely, the two retaining walls 11 and 12 are respectively provided with a shaft hole, the two shaft holes 111 and 121 are opposite, and the two rotating shafts 521 and 522 can respectively rotate in the two shaft holes 111 and 121 in a matching way; one side of at least one shaft hole is provided with an opening, and the distance between two ends of the opening is larger than or equal to the diameter of the rotating shaft; the corresponding rotating shaft of the armature component 5 enters the shaft hole through the opening, and the opening is stopped by a limiting structure which is relatively fixed with the base 1 so as to limit the rotating shaft from falling out of the opening.

In this embodiment, one side of one of the shaft holes 111 is provided with the opening 1111, and thus, one of the shaft holes 111 is substantially a half hole. One of the rotating shafts 521 of the armature member 5 enters the one of the shaft holes 111 from the opening 1111, and the other rotating shaft 522 of the armature member penetrates the other shaft hole 121 from the inner side of the retaining wall 12 where the other shaft hole 121 is located.

In this embodiment, the retaining wall 11 where one of the shaft holes 111 is located is provided with a first chute 112 that opens into the opening 1111 and is adapted to slide on the one of the rotating shafts 111, and the first chute 112 penetrates through the inner and outer sides of the retaining wall 11 where the first chute 112 is located; the inner side surface of the retaining wall 12 where the other shaft hole 121 is located is provided with a second chute 122 which is open to the other shaft hole 121 and is suitable for the other rotating shaft 522 to slide; the first chute 112 and the second chute 122 are distributed opposite to each other. The second chute 122 is disposed such that the other shaft hole 121 is substantially half-hole as seen from the inner side of the retaining wall 12 as shown in fig. 1, and is full-hole as seen from the outer side of the retaining wall 12 as shown in fig. 2. The arrangement of the first chute 112 and the second chute 122 provides a mounting guiding function for the armature component 5, so that the armature component 5 is more convenient to mount, the distance between the first retaining wall 11 and the second retaining wall 12 can be smaller, and stable assembly of the armature component 5 is ensured. The first chute 112 and the second chute 122 are respectively disposed to be inclined in the same direction, so that, on the one hand, the two yokes 64 can be avoided, and on the other hand, the mounting pre-positioning function can be performed on the armature member 5, so that one of the rotating shafts 521 of the armature member 5 is not easy to slide out of one of the shaft holes 111.

In this embodiment, the present utility model further includes a housing 7 of the magnetic latching relay, the bottom end of the housing 7 is connected to the base 1, and the limiting structure is disposed on the inner side surface of the housing 7. Specifically, as shown in fig. 4, the limiting structure is a limiting rib 71 extending along the height direction of the housing, an outer side surface of the retaining wall 11 corresponding to the limiting rib 71 is provided with an accommodating groove 113 adapted to accommodate the limiting rib 71 and open to the opening, and the bottom of the limiting rib 71 is stopped at the opening 1111 of one of the shaft holes 111. The position of the limiting structure (i.e. the limiting rib 71) at the opening 1111 is provided with a cambered surface 711 facing the rotating shaft 521, and the cambered surface 711 is matched with the periphery of the rotating shaft 521, so that the movement jam of the rotating shaft 521 caused by the position of the limiting structure at the opening 1111 can be avoided. In other embodiments, the limiting structure is a limiting member mounted on the base, and the limiting member has two states of stopping the opening and releasing the opening, and is relatively fixed with the base in the stopping state.

In this embodiment, the armature component 5 includes two armatures 51, a permanent magnet (not shown in the drawings) and a plastic member 52, the permanent magnet is fixed by the plastic member 52 and is tightly attached between the opposite surfaces of the two armatures 51, and the plastic member 52 is provided with the two rotating shafts 521, 522.

The utility model relates to an armature installation structure of a magnetic latching relay, which comprises the following assembly methods of an armature component 5 and a base 1: one of the rotation shafts 521 of the armature member 5 is slid toward one of the shaft holes 111 along the first slide groove 112, and the other rotation shaft 522 is slid toward the other shaft hole 121 along the second slide groove 122, and when one of the rotation shafts 521 is slid into one of the shaft holes 111, the other rotation shaft 522 enters a half hole portion of the other shaft hole 121, the whole armature member 5 is pushed toward the extending direction of the other rotation shaft 522 so that the other rotation shaft 522 penetrates the full hole portion of the other shaft hole 121, as shown in fig. 14 and 15. When the housing 7 is connected with the base 1, the limit rib 71 on the inner side surface of the housing 7 is inserted into the accommodating groove 113 on the outer side surface of the retaining wall 11 from top to bottom, and the arc surface 711 at the bottom of the limit rib 71 stops at the opening 1111 of one of the shaft holes 111, as shown in fig. 18 and 19, so as to limit one of the rotating shafts 521 from sliding out of the opening 1111 of the shaft hole 111. Therefore, the armature component 5 of the utility model does not need to adopt a metal rotating shaft to be rotationally connected with the base 1, thereby saving parts, reducing cost, having simple structure and assembly, being easy to realize automatic production, not generating plastic scraps in the assembly process and not influencing the stability of relay parameters.

Referring to fig. 1 to 20, a magnetic latching relay of the present utility model includes an armature mounting structure of a magnetic latching relay according to the present utility model as described above.

In this embodiment, the present utility model further includes a push card 4, a magnetic circuit portion, a movable spring portion 2 and a static spring portion 3 on the base 1, where the movable spring portion 2 includes at least one first movable spring 21, at least one second movable spring 22 and a movable contact 23, the first movable spring 21 and the second movable spring 22 are stacked, the second movable spring 22 is located at a side of the first movable spring 21 opposite to the static spring portion 3, and the movable contact 23 is fixed on the first movable spring 21 and the second movable spring 22. The magnetic circuit part is matched with the movable spring part 2 through the pushing card 4; the free end of the first movable spring 21 is separated from the free end of the second movable spring 22, the free end of the first movable spring 21 and the free end of the second movable spring 22 are respectively connected to the push card 4, a movement gap is formed between the free end of the second movable spring 22 and the push card 4, so that the push card 4 can move along the contact closing direction relative to the second movable spring 22 after the movable contact 23 contacts with the fixed contact 31 of the fixed spring part 3, and the size of the movement gap is smaller than the distance that the push card 4 continues to move along the contact closing direction after the movable contact 23 contacts with the fixed contact 31. The number of the first movable springs 21 and the second movable springs 22 is one, respectively, but is not limited thereto. The root portions of the first movable spring 21 and the second movable spring 22 are electrically connected to the movable spring lead-out piece 24, and the electric connection is a rivet, but not limited thereto, and the movable contact 23 is fixed to the first movable spring 21 and the second movable spring 22 by a rivet.

In this embodiment, as shown in fig. 14-17, one end of the push card 4 is provided with a first slot 41 and a second slot 42 sequentially arranged from one end of the push card 4 to the other end, the free end of the first movable spring 21 is inserted into the first slot 41, and the width of the first slot 41 is adapted to the width of the free end of the first movable spring 21, so that when the push card 4 moves in the contact closing direction, the free end of the first movable spring 21 can be synchronously driven to move. Therefore, the first slot 4 is substantially in clearance fit with the free end of the first movable spring 21, but not limited thereto, and in other embodiments, the first slot 4 is in clearance fit with the free end of the first movable spring, where the clearance fit is smaller than the movement clearance. The free end of the second movable spring 22 is disposed through the second slot 42, and the movement gap is formed between the free end of the second movable spring 22 and the second slot, that is, the width of the second slot 42 is greater than the width of the free end of the second movable spring 22, and in the contact-off state, the distance between the free end of the second movable spring 22 and the first inner side surface of the second slot 42, which is closest to the first slot 41, is smaller than the distance between the free end of the second movable spring 22 and the second inner side surface of the second slot 42, which is closest to the first slot 41, and the second inner side surface is the inner side surface of the second slot 42, which is farthest from the first slot 41.

In this embodiment, as shown in fig. 10, the first movable spring 21 is a flat plate, the middle of the free end thereof is a straight plate 211, two sides of the free end thereof are provided with step structures, and the straight plate 211 is inserted into the first slot 41. As shown in fig. 11, the free end of the second movable contact spring 22 is provided with a first hook 221 and a second hook 222, and the first hook 221 and the second hook 222 are respectively fitted on both sides in the thickness direction of the push card 4 to restrict the relative displacement of the push card 4 in the thickness direction of the push card 4. The first hook 221 passes through the second slot 42 of the push card 4 and faces the first movable contact spring 21, the second hook 222 does not pass through the push card 4, and the second hook 222 faces the first hook 221 in the opposite direction. The number of the second hooks 222 is plural, and the first hooks 221 are located between the plurality of second hooks 222, and specifically, the number of the second hooks 222 is two, but not limited thereto. The tail end of the first hook 221 contacts with or is adjacent to the free end of the first movable spring 21, so that an annular body is enclosed between the two, and the push card 4 is partially inserted into the annular body, thereby realizing complete connection between the push card 4 and the movable spring 2 and avoiding the push card 4 from separating from the movable spring 2. Specifically, one end of the push card 4 is inserted into the annular body at a position between the first slot 41 and the second slot 42 (which is a spacer rod capable of separating the first slot 41 from the second slot 42). The second hook 222 is specifically located below the push card 4, so that the second hook 222 also has a certain supporting effect on the push card 4.

In this embodiment, the middle part of the free end of the second movable reed 22 protrudes from two sides of the free end, and the middle part of the free end of the second movable reed 22 is separated from the free end of the first movable reed 21 by two folds, so as to form the first hook 221, and two sides of the free end of the second movable reed 22 are respectively formed into the second hook 222 by one fold. The tail end of the first hook 221 is close to the straight piece 211 of the first movable spring 21, so that an annular structure hanging at one end of the push card 4 is formed between the free end of the first movable spring 21 and the straight piece 211 of the second movable spring 22. The second movable reed 22 is provided with an arched bending part 223 near the root part, and the arched bending part 223 protrudes to one side far away from the first movable reed 21, so that the first movable reed 21 and the second movable reed 22 have a gap at the position, and the stop spring part 2 is prevented from being blocked when deforming.

In this embodiment, as shown in fig. 10, the first movable contact spring 21 is provided with a hollow hole 212 having a strip-shaped curved shape, the hollow hole 212 surrounds the periphery of the movable contact 23, and two ends of the hollow hole 212 are respectively located at one side of the movable contact 23 farthest from the free end of the first movable contact spring 21. Specifically, the hollowed-out hole 212 is substantially U-shaped (or may be an inverted U-shape), but is not limited thereto, and in other embodiments, the hollowed-out hole 212 is C-shaped, n-shaped, or the like.

In this embodiment, the magnetic circuit part includes a coil assembly 6 and the armature component 5 cooperating therewith, and the plastic part 52 is provided with a pushing part 523, and the pushing part 523 is movably connected with the push card 4. The coil assembly 6 specifically includes a coil frame 61, a coil 62 wound around the coil frame 61, an iron core 63 penetrating through the coil frame 61, and two yokes 64, wherein the two yokes 64 are respectively L-shaped, one sides of the two yokes 64 are respectively fixedly connected with two ends of the iron core 63 (the connection manner is, but not limited to, riveting), the other sides of the two yokes 64 are respectively located on the same outer side of the coil frame 61 and are oppositely arranged, and the other sides of the two yokes 64 are respectively inserted into openings on two sides formed by the armature component 5, as shown in fig. 19. The coil assembly 6 is vertical, the push card 4 is located above the armature component 5, the push portion 523 of the plastic component 52 extends upward, and a rod 5231 with an arc-shaped cross section is disposed at the tail end of the push portion 523, as shown in fig. 12, the rod 5231 and the rotation axis of the armature component 5 are parallel to each other, the push card 4 is provided with a containing groove 43 adapted to the rod 5231, and the rod 5231 is movably installed in the containing groove 43.

In this embodiment, the base 1 is further provided with a partition wall 13 between the two retaining walls 11, 12, and the partition wall 13 separates the armature component 5 from the moving spring portion 2 and the static spring portion 3.

The utility model relates to a magnetic latching relay, which pushes a card 4 to move as follows:

the push card 4 moves leftwards (namely, the contact closing direction), the inner side surface of the first slot 41 is firstly contacted with the first movable reed 21, the movable reed part 2 is pushed to move leftwards, the gap between the movable contact 23 and the fixed contact 31 is gradually reduced, and in the process, the counter force of the movable reed part 2 is smaller, and corresponds to a slope section b in fig. 20; when the movable contact 23 and the fixed contact 31 start to contact, as the push card 4 continues to move leftwards, the first movable contact spring 21 continues to move leftwards, and the second movable contact spring 22 does not move relatively any more because the movable contact 23 and the fixed contact 31 are completely contacted, so in the process, the push card 4 moves leftwards relative to the second movable contact spring 22, the distance between the second inner side surface of the second slot 42 and the second movable contact spring 22 is gradually reduced until the second inner side surface contacts with the second movable contact spring 22, and the deformation fulcrum of the movable contact spring part 2 is changed from the free end of the first movable contact spring 21 to the contact point of the movable contact 23 and the fixed contact 31, so the counter force of the movable contact spring part 2 is larger and corresponds to a slope section c in fig. 20; when the pushing card 4 continues to move leftwards, the two slots of the pushing block simultaneously push the two movable reeds to move (i.e. the inner side surface of the first slot 41 pushes the first movable reed 21, and the second inner side surface of the second slot 42 pushes the second movable reed 22), compared with the previous stage, the second movable reed 22 is also stressed to deform reversely, so that the counter force of the stage becomes larger again, corresponding to the slope section d in fig. 20.

Therefore, compared with the prior art (the prior art only has two slope sections b and c in fig. 20), the counter force of the movable spring part 2 has 3 slope sections in the whole stroke of the push card 4, so that the counter force of the whole movable spring part 2 can be improved, and the contact pressure can be improved, meanwhile, the deformation of the second movable spring 22 can drive the movable contact 23 to twist due to the fact that the second movable spring 22 is also pushed by the pushing end section of the push card 4, so that the movable contact 23 and the fixed contact 31 are obviously staggered, the problem that the contact is easy to be adhered due to large surge current is obviously solved, and the reliability of the relay is obviously improved. After the hollow hole 212 is formed in the first movable spring 21, the reaction force of the whole movable spring part 2 is not excessively large, so that the reaction force can be more matched with the electromagnetic attraction force (as shown in fig. 20, the curve a is an electromagnetic attraction force curve) of the magnetic circuit part, and the magnetic circuit part can be reliably attracted.

Example two

Referring to fig. 21, an armature component mounting structure of a magnetic latching relay of the present utility model is different from the first embodiment in that: the same side of the two shaft holes 111, 121 is respectively provided with the openings 1111/1211, the two rotating shafts 521, 522 of the armature component 5 respectively enter the two shaft holes 111, 121 through corresponding openings, the number of the limiting structures is two, and the limiting structures are in one-to-one correspondence with the openings 1111/1211 of the two shaft holes 111, 121.

In this embodiment, the retaining wall 11 where one of the shaft holes 111 is located is provided with a first chute 112 that opens into an opening 1111 of one of the shaft holes and is adapted to slide on the one of the rotating shafts 521, the retaining wall 12 where the other of the shaft holes 121 is located is provided with a second chute 122 that opens into an opening 1211 of the other of the shaft holes and is adapted to slide on the other of the rotating shafts 522, the first chute 112 and the second chute 122 respectively penetrate through the inner and outer sides of the retaining wall where the first chute 112 and the second chute 122 are located, and the first chute 112 and the second chute 122 are distributed oppositely and incline in the same direction.

In this embodiment, the limiting structure is also a limiting rib 71 disposed on the inner side surface of the housing 7, and the number of the limiting ribs 71 is two, and the two limiting ribs are disposed opposite to each other. The outer side surfaces of the two retaining walls 11 and 12 of the base are respectively provided with a containing groove capable of containing the limiting convex rib 71.

The utility model relates to an armature component mounting structure of a magnetic latching relay, which comprises the following assembly methods of an armature component 5 and a base 1: one of the rotating shafts 521 of the armature member 5 is slid toward one of the shaft holes 111 along the first sliding groove 112, and the other rotating shaft 522 is slid toward the other shaft hole 121 along the second sliding groove 122, and when one of the rotating shafts 521 is slid into one of the shaft holes 111 and the other rotating shaft 522 is slid into the other shaft hole 121, the preliminary assembly of the armature member 5 is completed. When the housing 7 is connected with the base 1, the two limiting ribs 71 on the inner side surface of the housing 7 are respectively inserted into the accommodating grooves on the outer side surfaces of the retaining walls 11 and 12 from top to bottom, and the cambered surfaces 711 at the bottoms of the limiting ribs 71 are respectively stopped at the openings of the corresponding shaft holes, so that the two rotating shafts 521 and 522 of the armature component 5 are limited to slide out from the openings 1111 and 1211 of the two shaft holes.

The armature component mounting structure of the magnetic latching relay and the magnetic latching relay are the same as or can be realized by adopting the prior art.

The above embodiments are only used to further illustrate an armature component mounting structure of a magnetic latching relay and the magnetic latching relay of the present utility model, but the present utility model is not limited to the embodiments, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model falls within the scope of the technical solution of the present utility model.

Claims (10)

1. The armature component mounting structure of the magnetic latching relay comprises an armature component and a base, wherein two opposite sides of the armature component are respectively provided with a rotating shaft, the two rotating shafts are positioned on the same axis, the base is provided with two retaining walls which are distributed oppositely, the two retaining walls are respectively provided with a shaft hole, the two shaft holes are opposite, and the two rotating shafts can be respectively matched in the two shaft holes to rotate; the method is characterized in that: one side of at least one shaft hole is provided with an opening, and the distance between two ends of the opening is larger than or equal to the diameter of the rotating shaft; the corresponding rotating shaft of the armature component enters the shaft hole through the opening, and the opening is stopped by a limiting structure which is relatively fixed with the base, so that the rotating shaft is limited to be separated from the opening.

2. The armature component mounting structure of a magnetic latching relay according to claim 1, wherein: one of the shaft holes is provided with the opening, one of the rotating shafts of the armature component enters the one of the shaft holes from the opening, and the other rotating shaft of the armature component penetrates through the other shaft hole from the inner side of the retaining wall where the other shaft hole is located.

3. The armature component mounting structure of a magnetic latching relay according to claim 1, wherein: the same side of the two shaft holes is respectively provided with the openings, and the two rotating shafts of the armature component respectively enter the two shaft holes through the corresponding openings; the number of the limiting structures is two, and the limiting structures are in one-to-one correspondence with the openings of the two shaft holes.

4. The armature component mounting structure of a magnetic latching relay according to claim 2, wherein: the retaining wall where one shaft hole is positioned is provided with a first chute which is communicated with the opening and is suitable for sliding of one rotating shaft, and the first chute penetrates through the inner side surface and the outer side surface of the retaining wall where the first chute is positioned; the inner side surface of the retaining wall where the other shaft hole is located is provided with a second chute which is communicated with the other shaft hole and suitable for sliding of the other rotating shaft, and the first chute and the second chute are distributed relatively.

5. The armature component mounting structure of a magnetic latching relay according to claim 3, wherein: the retaining wall where one shaft hole is located is provided with a first chute which is communicated with the opening of one shaft hole and is suitable for sliding of one shaft hole, the retaining wall where the other shaft hole is located is provided with a second chute which is communicated with the opening of the other shaft hole and is suitable for sliding of the other shaft hole, the first chute and the second chute penetrate through the inner side face and the outer side face of the retaining wall where the first chute and the second chute are located respectively, and the first chute and the second chute are distributed relatively.

6. The armature component mounting structure of a magnetic latching relay according to claim 4 or 5, characterized in that: the first chute and the second chute are respectively arranged in an inclined way towards the same direction.

7. The armature component mounting structure of a magnetic latching relay according to any one of claims 1 to 5, characterized in that: the magnetic latching relay comprises a base, a magnetic latching relay body and a magnetic latching relay cover, wherein the base is connected with the magnetic latching relay body; the limiting structure is arranged on the inner side surface of the shell; the limiting structure is a limiting convex rib extending along the height direction of the shell, the outer side face of the retaining wall corresponding to the limiting convex rib is provided with a containing groove which is suitable for containing the limiting convex rib and leading to the opening, and the bottom of the limiting convex rib is stopped at the opening of the corresponding shaft hole.

8. The armature component mounting structure of a magnetic latching relay according to claim 1, wherein: the limiting structure is provided with a cambered surface facing the rotating shaft at the position of the opening, and the cambered surface is matched with the periphery of the rotating shaft.

9. The armature component mounting structure of a magnetic latching relay according to any one of claims 1 to 5, characterized in that: the armature component comprises two armatures, a permanent magnet and a plastic piece, wherein the permanent magnet is fixed between the opposite surfaces of the two armatures through the plastic piece, and the plastic piece is provided with the two rotating shafts.

10. A magnetic latching relay, characterized by: an armature component mounting structure comprising the magnetic latching relay as claimed in any one of claims 1 to 9.