CN218385041U

CN218385041U - Pushing rod assembly and relay

Info

Publication number: CN218385041U
Application number: CN202222688298.2U
Authority: CN
Inventors: 钟叔明; 傅大鹏; 代文广; 陈松生
Original assignee: Xiamen Hongfa Electric Power Controls Co Ltd
Current assignee: Xiamen Hongfa Electric Power Controls Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-01-24
Anticipated expiration: 2032-10-12
Also published as: WO2024078537A1

Abstract

The embodiment of the utility model discloses a push rod assembly and a relay, wherein the push rod assembly comprises a base, a movable component, an elastic piece and a limit structure, and the movable component is movably connected with the base; one end of the elastic piece is abutted against the base, the other end of the elastic piece is abutted against the movable component, and the elastic piece provides elastic force so that the movable component has a tendency of moving towards a fixed contact leading-out end of the relay; the limiting structure is connected with the base and the movable component and is used for limiting the moving range of the movable component relative to the base; the limiting structure comprises a limiting hole and a limiting part which are matched, and the limiting part is movably arranged in the limiting hole.

Description

Pushing rod assembly and relay

Technical Field

The utility model relates to an electronic component technical field particularly, relates to a catch bar subassembly and relay.

Background

The relay is an electric control element, and the magnetic field generated by the circular coil after being electrified drives the internal movable component to move so as to close the movable contact and the static contact, thereby achieving the purpose of controlling the circuit.

The push rod assembly includes a base and a movable member that is movable relative to the base such that the relay completes an overtravel procedure upon contact of the movable member with the stationary contact.

However, in the related art, in order to accommodate the overtravel process, the assembly of the movable member is not simple.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a catch bar subassembly and relay to simplify the assembly of movable member.

The push rod component of the embodiment of the utility model is applied to a relay, and comprises a base, a movable component, an elastic piece and a limiting structure, wherein the movable component is movably connected with the base; one end of the elastic piece abuts against the base, the other end of the elastic piece abuts against the movable component, and the elastic piece provides elastic force so that the movable component has a tendency of moving towards a stationary contact leading-out end of the relay; a limit structure connected to the base and the movable member for limiting a range of movement of the movable member relative to the base; the limiting structure comprises a limiting hole and a limiting part which are matched with each other, and the limiting part is movably arranged in the limiting hole.

According to some embodiments of the present invention, the limiting hole comprises a first end and a second end oppositely disposed along the moving direction of the movable member, and the aperture of the second end is larger than that of the first end; wherein the stopper portion is located at the first end of the stopper hole when the movable member is separated from the stationary contact leading-out terminal.

According to some embodiments of the present invention, the first end of the limiting hole is arranged at a position corresponding to the second end of the first hole.

According to some embodiments of the present invention, the hole wall of the limiting hole includes a first plane and a second plane which are oppositely arranged and a first inclined plane and a second inclined plane which are oppositely arranged, the first inclined plane and one end of the second inclined plane are connected to both ends of the first plane, and the first inclined plane and the other end of the second inclined plane are connected to both ends of the second plane.

According to some embodiments of the present invention, the spacing portion has a first arc surface, the first arc surface is used for the spacing portion is located in the spacing hole when the first end, with spacing hole realization is spacing.

According to some embodiments of the present invention, the movable member is provided with the limiting portion, and the base is provided with the limiting hole.

According to some embodiments of the invention, the movable member comprises a movable reed and a second magnetizer fixedly connected with the movable reed; the second magnetizer is provided with the limiting part.

According to some embodiments of the invention, the second magnetizer includes:

a bottom portion;

the first side part and the second side part are respectively connected to two ends of the bottom part along the width direction of the movable spring plate; the first side part and the second side part are respectively arranged on two opposite side edges in the width direction of the movable spring plate; the first side part and the second side part are both provided with the limiting parts;

the base comprises a base part, a first limiting part and a second limiting part, wherein the first limiting part and the second limiting part are connected to the base part and are arranged oppositely, the first side part and the first limiting part are arranged correspondingly, the second side part and the second limiting part are arranged correspondingly, and the first limiting part and the second limiting part are provided with limiting holes.

According to some embodiments of the invention, the first locating part faces a side surface of the first side portion and the second locating part faces a side surface of the second side portion and includes a second arcuate surface.

According to some embodiments of the invention, the first side portion and the second side portion are located between the first retaining member and the second retaining member;

the limiting part is integrally and convexly arranged on one side of the first side part, which deviates from the second side part, and one side of the second side part, which deviates from the first side part.

According to some embodiments of the utility model, spacing portion is towards the bud structure.

According to some embodiments of the utility model, spacing portion is the rivet, the rivet riveting in the second magnetizer.

According to some embodiments of the invention, the second magnetizer includes:

the bottom is provided with the limiting part;

the first side part and the second side part are respectively connected to two ends of the bottom part along the width direction of the movable spring plate; the first side part and the second side part are respectively arranged on two opposite side edges of the movable spring plate in the width direction.

According to some embodiments of the invention, the movable member comprises:

a movable reed;

the second magnetizer is fixedly connected to the movable reed; and

and the fixing piece is fixedly connected with the second magnetizer and is provided with the limiting part.

According to some embodiments of the utility model, the mounting has the perforation, the elastic component wears to locate the perforation, just the other end butt of elastic component in the second magnetizer.

According to some embodiments of the invention, the base has the limiting portion; the movable component comprises a movable reed, a second magnetizer and a fixing piece, and the second magnetizer is fixedly connected with the movable reed; the fixing piece is fixedly connected to the second magnetizer and provided with the limiting hole.

The utility model discloses relay, including above-mentioned arbitrary catch bar subassembly.

According to some embodiments of the invention, the relay further comprises:

a contact receptacle, the push rod assembly being movable relative to the contact receptacle; and

the first magnetizer is arranged in the contact container and is fixedly arranged relative to the contact container;

the first magnetizer is used for forming a magnetic conductive loop with the second magnetizer of the push rod assembly.

One embodiment of the above utility model has at least the following advantages or beneficial effects:

the utility model discloses push rod subassembly, movable member pass through limit structure with the base and are connected for movable member is restricted for the range of movement of base. Limiting structure includes spacing hole of matched with and spacing portion for the structure of pushing rod subassembly is simpler, and more convenient assembly.

Drawings

Fig. 1 shows a schematic side view of a push rod assembly according to a first embodiment of the present invention.

Fig. 2 shows an exploded view of fig. 1.

Fig. 3 shows a partial enlarged view at X in fig. 1.

Fig. 4 shows a cross-sectional view B-B of fig. 1.

Fig. 5 is an exploded view of a push rod assembly according to a second embodiment of the present invention.

Fig. 6 is an exploded view of a push rod assembly according to a third embodiment of the present invention.

Fig. 7 is an exploded view of a push rod assembly according to a fourth embodiment of the present invention.

Fig. 8 is an exploded view of a push rod assembly according to a fifth embodiment of the present invention.

Fig. 9 is an exploded view of a push rod assembly according to a sixth embodiment of the present invention.

Fig. 10 is a schematic top view of a relay according to an embodiment of the present invention.

Fig. 11 is a schematic perspective view of a relay according to an embodiment of the present invention at a viewing angle.

Fig. 12 is a perspective view of a relay according to an embodiment of the present invention from another perspective.

Fig. 13 is a schematic diagram of a relay according to an embodiment of the present invention, in which the housing is omitted.

Fig. 14 showsbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A in fig. 13.

Wherein the reference numerals are as follows:

10. a contacting vessel; 101. a contact chamber; 11a, an insulating cover; 11. a ceramic cover; 12. a frame piece; 13. a yoke iron plate; 131. a first through hole; 20. a stationary contact leading-out terminal; 30. a connecting member; 40. a first magnetizer; 50. a push rod assembly; 51. a rod portion; 52. a base; 521. a base; 522. a first limit piece; 523. a second limiting member; 524. a second arcuate surface; 53. a movable member; 54. a movable spring plate; 55. a second magnetizer; 551. a bottom; 552. a first side portion; 553. a second side portion; 56. an elastic member; 57. a limiting structure; 571. a limiting part; 571a, a first arc surface; 572. a limiting hole; 573. a first end of a limiting hole; 574. a second end of the limiting hole; 575. a first plane; 576. a second plane; 577. a first inclined plane; 578. a second inclined plane; 579. riveting; 58. a fixing member; 581. perforating; 1100. a housing; 1110. a first housing; 1120. a second housing; 1200. an electromagnet unit; 1210. a bobbin; 1220. a coil; 1230. a stationary iron core; 1231. a second through hole; 1240. a movable iron core; 1250. a reset member; 1410. a metal cover; d1, the motion direction; d2, length direction; d3, width direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

As shown in fig. 10 to 14, fig. 10 is a schematic top view of a relay according to an embodiment of the present invention. Fig. 11 is a schematic perspective view of a relay according to an embodiment of the present invention at a viewing angle. Fig. 12 is a schematic perspective view of a relay according to an embodiment of the present invention from another perspective. Fig. 13 is a schematic diagram of a relay according to an embodiment of the present invention, in which the housing is omitted. Fig. 14 showsbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 13. The utility model discloses relay includes shell 1100, contact container 10, a pair of stationary contact leading-out 20, first magnetizer 40, catch bar subassembly 50 and electro-magnet unit 1200.

As an example, the casing 1100 includes a first case 1110 and a second case 1120, and the first case 1110 and the second case 1120 are snapped to form a chamber for accommodating the contact receptacle 10, the push bar assembly 50, and the electromagnet unit 1200.

The contact container 10 has a contact chamber 101, and a pair of stationary contact terminals 20 are connected to the contact container 10. One of the pair of stationary contact terminals 20 serves as a terminal into which current flows, and the other serves as a terminal from which current flows. Part of the stationary contact terminal 20 protrudes into the contact chamber 101 for contacting with or separating from the movable spring 54 of the push lever assembly 50. Part of the stationary contact terminal 20 is exposed to contact the outer wall surface of the container 10.

The bottom of the stationary contact terminal 20 serves as a stationary contact. It is understood that the stationary contact may be integrally or separately provided at the bottom of the stationary contact terminal 20.

The contact vessel 10 includes a yoke plate 13 and an insulating cover 11a, and the insulating cover 11a is covered on one side of the yoke plate 13 to form a contact chamber 101 of the contact vessel 10. The yoke plate 13 has a first through hole 131 communicating with the contact chamber 101, and the push rod assembly 50 is movably disposed through the first through hole 131.

The insulating cover 11a includes a ceramic cover 11 and a frame piece 12. The ceramic cover 11 is connected to the yoke plate 13 via a frame piece 12. The frame piece 12 may be a metal piece with a ring structure, such as iron-nickel alloy, and one end of the frame piece 12 is connected to the opening edge of the ceramic cover 11, for example, by laser welding, soldering, resistance welding, gluing, etc. The other end of the frame piece 12 is connected to the yoke plate 13, and may be welded by laser welding, brazing, resistance welding, gluing, or the like. A frame piece 12 is provided between the ceramic cover 11 and the yoke plate 13 to facilitate the connection between the ceramic cover 11 and the yoke plate 13.

With reference to fig. 11, the relay further includes a metal cover 1410, the metal cover 1410 is connected to a side of the yoke plate 13 opposite to the insulation cover 11a, and the metal cover 1410 is covered on the first through hole 131 of the yoke plate 13. The metal cover 1410 and the yoke plate 13 define a chamber for accommodating the stationary core 1230 and the movable core 1240 of the electromagnet unit 1200, which will be described in detail below.

The electromagnet unit 1200 includes a coil bobbin 1210, a coil 1220, a stationary iron core 1230, a movable iron core 1240, and a restoring member 1250. The bobbin 1210 has a hollow cylindrical shape and is formed of an insulating material. The metal cap 1410 is inserted into the bobbin 1210. A coil 1220 surrounds the bobbin 1210. The stationary iron core 1230 is fixedly disposed in the metal cover 1410, and a portion of the stationary iron core 1230 extends into the first through hole 131. The stationary iron core 1230 has a second through hole 1231, and the second through hole 1231 is disposed corresponding to the position of the first through hole 131, so that the rod 51 of the push rod assembly 50 can pass through the second through hole. A movable iron core 1240 is movably disposed within the metal cover 1410 and is disposed opposite the stationary iron core 1230, the movable iron core 1240 connecting the rod portion 51 for being attracted by the stationary iron core 1230 when the coil 1220 is energized. The plunger 1240 and the shaft 51 may be screwed, riveted, welded, or otherwise connected.

The reset member 1250 is disposed inside the metal cover 1410 and between the stationary core 1230 and the movable core 1240 to reset the movable core 1240 when the coil 1220 is de-energized. The restoring member 1250 may be a spring and is sleeved outside the rod part 51.

The first magnetizer 40 is disposed in the contact chamber 101 of the contact container 10 and is fixedly disposed with respect to the contact container 10.

As an example, the first magnetizer 40 may be directly connected to the contact container 10, or may be connected to the contact container 10 through the connecting member 30.

In this embodiment, the first magnetic conductor 40 is connected to the ceramic cover 11 through the connecting member 30.

As shown in fig. 1 to 4 and 11, fig. 1 is a schematic side view of a push rod assembly 50 according to a first embodiment of the present invention. Fig. 2 shows an exploded view of fig. 1. Fig. 3 shows a partial enlarged view at X in fig. 1. Fig. 4 shows a cross-sectional view B-B in fig. 1.

The push lever assembly 50 includes a lever portion 51, a base 52, a movable member 53, an elastic member 56, and a stopper 57. The rod 51 is movably inserted through the first and second through

holes

131 and 1231. One end of the rod 51 is connected to the base 52, and the other end of the rod 51 is connected to the plunger 1240. When the coil of the relay is energized, the plunger 1240 can drive the rod 51 to move, thereby closing the relay contact. One end of the elastic piece 56 abuts against the base 52, the other end of the elastic piece 56 abuts against the movable member 53, and the elastic piece 56 provides an elastic force so that the movable member 53 has a tendency to move toward the stationary contact terminal 20 of the relay.

It will be understood that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present invention, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

It is understood that the elastic member 56 may be a spring, but is not limited thereto.

A limit structure 57 is connected to the base 52 and the movable member 53 for limiting a moving range of the movable member 53 with respect to the base 52. The restricting structure 57 includes a cooperating restricting hole 572 and a restricting portion 571, the restricting hole 572 includes a first end 573 and a second end 574 oppositely disposed along the moving direction D1 of the movable member 53, the second end 574 has a larger aperture than the first end 573, and the restricting portion 571 is movably inserted between the first end 573 and the second end 574 of the restricting hole 572.

When the movable member 53 is not in contact with the stationary contact terminal 20, the stopper portion 571 is positioned at the first end 573 of the stopper hole 572 by the elastic member 56. When the movable member 53 comes into contact with the stationary contact terminal 20 and the overtravel is completed, the stopper 571 moves from the first end 573 to the second end 574 of the stopper hole 572. Since the aperture of the second end 574 of the stopper hole 572 is larger than the aperture of the first end 573, the stopper hole 572 has a structure of "one end is larger and the other end is smaller", so that a gap between the stopper portion 571 and the hole wall of the stopper hole 572 is increased during the overtravel, and the stopper portion 571 and the hole wall of the stopper hole 572 are prevented from being frictionally jammed during the movement of the movable member 53 relative to the base 52. Meanwhile, the first end 573 of the stopper hole 572 has a small diameter, and the stopper part 571 does not interfere with the stopper fitting of the stopper hole 572 in the initial state, thereby preventing the movable member 53 from wobbling relative to the base 52.

In order to achieve the initial position, the movable member 53 and the base 52 are stopped, and the first end 573 of the stopper hole 572 has a diameter corresponding to the shape of the stopper portion 571, so that the stopper portion 571 can stop the wall of the stopper hole 572 when the stopper portion 571 is located at the first end 573 of the stopper hole 572.

In this embodiment, the base 52 is directly connected to the movable member 53 through the stopper 57, so that the assembly between the base and the movable member 53 is simpler. Also, since the remaining parts do not exist above the movable member 53, the remaining parts are prevented from moving to interfere with the first magnetizer 40 during the overtravel.

It is understood that the limiting hole 572 may be a through hole or a blind hole.

With reference to fig. 1 to 4, the aperture of the limiting hole 572 gradually increases from the first end 573 to the second end 574 of the limiting hole 572. During the overtravel, the clearance between the stopper portion 571 and the hole wall of the stopper hole 572 gradually increases as the stopper portion 571 moves from the first end 573 to the second end 574 of the stopper hole 572.

Further, the hole wall of the limiting hole 572 includes a first plane 575 and a second plane 576 disposed opposite to each other and a first inclined plane 577 and a second inclined plane 578 disposed opposite to each other, one end of the first inclined plane 577 and one end of the second inclined plane 578 are connected to two ends of the first plane 575, and the other end of the first inclined plane 577 and the other end of the second inclined plane 578 are connected to two ends of the second plane 576.

In the present embodiment, the shape of the limit hole 572 is substantially an isosceles trapezoid, but not limited thereto. For example, the shape of the limiting hole 572 can be a general trapezoid, i.e., the slope of the first inclined surface 577 is not equal to that of the second inclined surface 578. Alternatively, the shape of the limiting hole 572 may be a triangle, and preferably, the triangle may be an isosceles triangle.

Of course, in other embodiments, the aperture of the limiting hole 572 may not increase gradually along the direction from the first end 573 to the second end 574 of the limiting hole 572, for example, the hole wall of the limiting hole 572 may also include an equal-diameter section and a larger-diameter section. For example, the hole wall of the stopper hole 572 may include an expanding section, an equal diameter section, and the like in sequence from the first end 573 to the second end 574.

As shown in fig. 3, the first arc-shaped surface 571a is configured to limit the hole wall of the limiting hole 572 when the first arc-shaped surface 571a is located at the first end 573 of the limiting hole 572.

In the present embodiment, by designing the outer sidewall of the stopper portion 571 to include the first arc-shaped surface 571a, the first arc-shaped surface 571a is in line contact with the hole wall of the stopper hole 572, and the line contact reduces the friction force between the stopper portion 571 and the hole wall of the stopper hole 572. When the position-limiting portion 571 and the position-limiting hole 572 move relatively, jamming is less likely to occur.

The base 52 has a stopper hole 572, and the movable member 53 includes a stopper 571. Of course, in other embodiments, the stopper hole 572 may be provided in the movable member 53 and the stopper portion 571 may be provided in the base 52.

It is understood that the movable member 53 includes a movable spring 54 and a second magnetic conductor 55 fixedly connected to the movable spring 54. The movable contact spring 54 is used for contacting with or separating from a stationary contact terminal of the relay. At least part of the second magnetizer 55 and the first magnetizer 40 are respectively located at two opposite lateral sides of the movable spring 54. The second magnetizer 55 may form a short-circuit loop electromagnetic resisting structure with the first magnetizer 40, and the short-circuit loop electromagnetic resisting structure may form a magnetic attraction force between the first magnetizer 40 and the second magnetizer 55 to overcome a repulsive force generated by a short-circuit current, thereby preventing the movable contact spring 54 from bouncing off from the stationary contact leading-out terminal.

It is understood that the first magnetic conductor 40 may have a straight shape and the second magnetic conductor 55 may have a U shape. The first magnetizer 40 and the second magnetizer 55 may be made of iron, cobalt, nickel, and alloy thereof.

Further, the first magnetic conductor 40 may include a plurality of stacked magnetic conductive sheets. The second magnetizer 55 may also include a plurality of stacked magnetizers, or the second magnetizer 55 includes a plurality of U-shaped magnetizers arranged side by side.

Of course, in other embodiments, the movable member 53 may include the movable spring 54 without the second magnetic conductor 55.

For convenience of explanation, the movable member 53 will be described below by way of example including the movable reed 54 and the second magnetic conductor 55, but is not limited thereto.

As shown in fig. 1 to 4, in the present embodiment, the base 52 has a position-limiting hole 572, and the second magnetizer 55 has a position-limiting portion 571. The second magnetic conductor 55 includes a bottom portion 551, a first side portion 552, and a second side portion 553. The first side portion 552 and the second side portion 553 are connected to both ends of the base portion 551, respectively, along the width direction D3 of the movable spring 54. The first side portion 552 and the second side portion 553 are respectively provided on two opposite side edges in the width direction D3 of the movable spring 54. The first side portion 552 and the second side portion 553 are each provided with a stopper portion 571.

The base 52 includes a base 521, and a first limiting member 522 and a second limiting member 523 connected to the base 521 and disposed opposite to each other, wherein a first side portion 552 is disposed corresponding to the first limiting member 522, a second side portion 553 is disposed corresponding to the second limiting member 523, and both the first limiting member 522 and the second limiting member 523 have a limiting hole 572.

A side surface of the first stopper 522 facing the first side portion 552 and a side surface of the second stopper 523 facing the second side portion 553 include second arc surfaces 524.

In the present embodiment, by designing the side surface of the first limiting member 522 facing the first side portion 552 and the side surface of the second limiting member 523 facing the second side portion 553 to both include the second arc-shaped surfaces 524, so that the two second arc-shaped surfaces 524 are in line contact with the first side portion 552 and the second side portion 553, respectively, the line contact reduces the friction between the first side portion 552 and the first limiting member 522 and between the second side portion 553 and the second limiting member 523. When the second magnetic conductor 55 moves relative to the base 52, jamming is less likely to occur. Moreover, the contact chamber of the relay can be prevented from being polluted by the scraping scraps.

The first and

second side portions

552 and 553 are located between the first and

second stoppers

522 and 523. A side of the first side portion 552 away from the second side portion 553 and a side of the second side portion 553 away from the first side portion 552 are integrally protruded with a stopper portion 571.

As an example, the stopper portion 571 may be formed by punching the side surfaces of the first side portion 552 and the second side portion 553, so that the stopper portion 571 forms a bract structure. The specific positions of the bract structure on the first side 552/the second side 553 can be flexibly adjusted according to the structure.

In this embodiment, since the two position-limiting portions 571 are respectively protruded on a side of the first side portion 552 away from the second side portion 553, and a side of the second side portion 553 away from the first side portion 552, the first side portion 552 and the second side portion 553 can be in full contact with the first position-limiting member 522 and the second position-limiting member 523, so as to ensure stability of the second magnetic conductor 55 when being limited by the base 52, and magnetic conduction efficiency is not affected.

In one embodiment, the position-limiting portion 571 may be a long strip. When the stopper 571 is located at the first end 573 of the stopper hole 572, the side surface with the larger strip-shaped area contacts with the hole wall of the stopper hole 572. By contacting the surface of the stopper 571 having a large area with the hole wall of the stopper hole 572, the movable contact spring 54 is effectively prevented from swinging with respect to the base 52 in the initial state, and the probability of the movable contact spring 54 bouncing back and rebounding is reduced.

As shown in fig. 5, fig. 5 is an exploded view of a push rod assembly 50 according to a second embodiment of the present invention. The parts of the second embodiment that are the same as the parts of the first embodiment are not described again, and the differences are as follows:

the position-limiting portion 571 includes two convex hull structures. The two convex hull structures are spaced apart along the length direction D2 of the movable spring 54. Due to the design of the double-convex-bag structure, the movable spring plate 54 is effectively prevented from swinging relative to the base 52 in the initial state, and the probability of rebound of the movable spring plate 54 is reduced.

It is understood that the moving direction D1, the length direction D2 and the width direction D3 are perpendicular to each other two by two.

As shown in fig. 6, fig. 6 is an exploded view of a push rod assembly 50 according to a third embodiment of the present invention. The parts of the third embodiment that are the same as the parts of the first embodiment are not described again, and the differences are as follows:

the stopper 571 is a rivet 579, and the rivet 579 is riveted to the first side portion 552/the second side portion 553 of the second magnetizer 55.

As shown in fig. 7, fig. 7 is an exploded view of a push rod assembly 50 according to a fourth embodiment of the present invention. The parts of the fourth embodiment that are the same as the parts of the first embodiment are not repeated, but the differences are as follows: the stopper 571 is disposed on the bottom 551 of the second magnetizer 55.

Specifically, the second magnetic conductor 55 includes a bottom portion 551, a first side portion 552, and a second side portion 553. The two opposite sides of the bottom 551 are integrally protruded with a stopper 571 along the width direction D3 of the movable spring 54. The first side portion 552 and the second side portion 553 are connected to both ends of the bottom portion 551, respectively, along the width direction D3 of the movable spring 54. The first side portion 552 and the second side portion 553 are respectively provided on two opposite side edges in the width direction D3 of the movable spring 54.

The base 52 includes a base 521, and a first limiting member 522 and a second limiting member 523 connected to the base 521 and disposed oppositely, wherein both the first limiting member 522 and the second limiting member 523 have a limiting hole 572.

As shown in fig. 8, fig. 8 is an exploded view of a push rod assembly 50 according to a fifth embodiment of the present invention. The parts of the fifth embodiment that are the same as the parts of the first embodiment will not be described again, and the differences are:

the base 52 includes a base 521, and a first limiting member 522 and a second limiting member 523 connected to the base 521 and disposed oppositely, and both the first limiting member 522 and the second limiting member 523 have a limiting hole 572. The movable member 53 further includes a fixing member 58 fixedly connected to the second magnetizer 55, and two opposite sides of the fixing member 58 are provided with position-limiting portions 571.

The first limiting member 522, the second limiting member 523, and the base 521 can be formed by integral injection molding, but not limited thereto.

The fixing member 58 has a through hole 581, the elastic member 56 is disposed through the through hole 581, and two ends of the elastic member 56 are respectively abutted against the second magnetic conductor 55 and the base 52.

As shown in fig. 9, fig. 9 is an exploded view of a push rod assembly 50 according to a sixth embodiment of the present invention. The parts of the sixth embodiment that are the same as the parts of the first embodiment will not be described again, and the differences are as follows:

the position-limiting part 571 is protruded from two opposite sides of the base 52 of the push rod assembly 50. The movable member 53 further includes a fixing member 58 fixedly connected to the second magnetic conductor 55, and the fixing member 58 is provided with a limiting hole 572.

It should be noted that the fixing member 58 has an inverted U shape, and the positions of the first end 573 and the second end 574 of the stopper hole 572 provided in the fixing member 58 are just opposite to those of the stopper hole 572 in the first to fifth embodiments.

Specifically, as shown in FIG. 9, a first end 573 of the retaining hole 572 is positioned below and a second end 574 is positioned above, the second end 574 having a larger aperture than the first end 573.

As shown in fig. 2, 5-8, the first end 573 of the retaining hole 572 is located above and the second end 574 is located below.

It is understood that the various embodiments/implementations provided by the present invention can be combined without contradiction, and are not illustrated herein.

In the embodiments of the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the terms "a" and "an" are used merely to introduce a feature and are not to be construed as a limitation on the particular number of such features unless specifically defined otherwise; the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the invention and is not intended to limit the same, and various modifications and changes may be made to the embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A push rod assembly applied to a relay, the push rod assembly comprising:

a base;

a movable member movably connected to the base;

an elastic member, one end of which abuts against the base and the other end of which abuts against the movable member, the elastic member providing an elastic force so that the movable member has a tendency to move toward a stationary contact leading-out terminal of the relay; and

a limiting structure connected to the base and the movable component and used for limiting the movement range of the movable component relative to the base; the limiting structure comprises a limiting hole and a limiting part which are matched, and the limiting part is movably arranged in the limiting hole.

2. The push rod assembly of claim 1 wherein the limiting aperture includes a first end and a second end disposed opposite in the direction of movement of the movable member, the second end having a larger bore diameter than the first end;

wherein the stopper portion is located at the first end of the stopper hole when the movable member is separated from the stationary contact leading-out terminal.

3. The push rod assembly of claim 2 wherein the bore diameter of the retention hole increases in a direction from the first end to the second end of the retention hole.

4. The push rod assembly according to claim 3, wherein the hole wall of the limiting hole comprises a first plane and a second plane which are arranged oppositely and a first inclined plane and a second inclined plane which are arranged oppositely, one end of the first inclined plane and one end of the second inclined plane are connected to two ends of the first plane, and the other end of the first inclined plane and the other end of the second inclined plane are connected to two ends of the second plane.

5. The push rod assembly of claim 2 wherein the retention portion has a first arcuate surface for engaging the retention aperture when the retention portion is at the first end of the retention aperture.

6. The push rod assembly as claimed in claim 1, wherein the movable member is provided with the stopper portion, and the base is provided with the stopper hole.

7. The push rod assembly of claim 6, wherein the movable member includes a movable spring plate and a second magnetic conductor fixedly connected to the movable spring plate; the second magnetizer is provided with the limiting part.

8. The push rod assembly of claim 7, wherein said second magnetic conductor comprises:

a bottom;

the first side part and the second side part are respectively connected to two ends of the bottom part along the width direction of the movable spring plate; the first side part and the second side part are respectively arranged on two opposite side edges of the movable spring plate in the width direction; the first side part and the second side part are both provided with the limiting parts;

the base comprises a base part, a first limiting part and a second limiting part, wherein the first limiting part and the second limiting part are connected to the base part and are arranged oppositely, the first side part is arranged corresponding to the first limiting part, the second side part is arranged corresponding to the second limiting part, and the first limiting part and the second limiting part are provided with limiting holes.

9. The push rod assembly according to claim 8, wherein a side surface of said first retaining member facing said first side portion and a side surface of said second retaining member facing said second side portion comprise a second arcuate surface.

10. The push rod assembly of claim 8, wherein said first side portion and said second side portion are located between said first retainer and said second retainer;

the first side portion deviates from one side of the second side portion and one side of the second side portion, which deviates from the first side portion, are integrally and convexly provided with the limiting portion.

11. The push rod assembly of claim 10, wherein the stopper is a bract structure.

12. The push rod assembly of claim 8, wherein said limiting portion is a rivet riveted to said second magnetic conductor.

13. The push rod assembly of claim 7, wherein said second magnetic conductor comprises:

the bottom is provided with the limiting part;

14. The push rod assembly of claim 6 wherein the movable member includes:

a movable spring plate;

the second magnetizer is fixedly connected to the movable reed; and

15. The push rod assembly according to claim 14, wherein the fixing member has a through hole, the elastic member is disposed through the through hole, and the other end of the elastic member abuts against the second magnetic conductor.

16. The push rod assembly of claim 1 wherein the base has the limit stop; the movable member includes:

a movable spring plate;

the second magnetizer is fixedly connected to the movable reed; and

and the fixing piece is fixedly connected with the second magnetizer and provided with the limiting hole.

17. A relay, comprising the push rod assembly of any one of claims 1 to 16.

18. The relay according to claim 17, further comprising:

the first magnetizer and the second magnetizer of the push rod assembly form a magnetic conductive loop.