CN218826873U

CN218826873U - Electromagnetic relay

Info

Publication number: CN218826873U
Application number: CN202222585896.7U
Authority: CN
Inventors: 岳秀峰; 陈飞勇; 周南; 黄运守; 周义
Original assignee: Shenzhen Golden Dianke Co ltd
Current assignee: Shenzhen Golden Dianke Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-04-07
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses an electromagnetic relay, which comprises a base, wherein a load system and a magnetic circuit system are arranged on the base, the load system comprises a movable reed component and a static reed component, the movable reed component comprises a plurality of movable reeds which are overlapped together, each movable reed has an arch bridge structure, the static reed component comprises a first terminal and a second terminal with a static contact, one end of the movable reed component is connected with the first terminal, and the other end of the movable reed group is provided with a movable contact; magnetic circuit includes the skeleton, the iron core, the yoke, armature, the coil, kicking piece and shell fragment, armature including the vertical section that is located one side of iron core and the horizontal segment that contacts with the kicking piece, the yoke including be located the iron core opposite side and with iron core riveted connecting portion and be located the top of horizontal segment and with the plate body portion of horizontal segment contact, the shell fragment including be fixed in the linkage segment of plate body portion with be used for elasticity to support to press in armature in order to press the inboard bending section in the yoke tip of the corner of armature, the kicking piece contacts with the movable spring piece subassembly. The load capacity of the relay is greatly improved.

Description

Electromagnetic relay

Technical Field

The utility model relates to a relay field especially relates to a big clearance structure power relay.

Background

An electromagnetic Relay (Relay), an electronic control device, has a control system (also called input loop) and a controlled system (also called output loop), is usually applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current with a smaller current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The power relay generally comprises a magnetic circuit system/a load system, wherein the load system forms a load loop by an A terminal assembly and a spring assembly, and the current carrying capacity of a load is related to the size of a reed of the spring assembly. In market application, large-gap and large-current relays have overlarge power consumption, and conversely, the small power cannot meet the gap requirement and cannot meet the requirements of related industry standards.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an electromagnetic relay aims at improving the load capacity of the relay, reduces the power consumption of the relay and provides a large-gap relay.

The purpose of the utility model is realized by adopting the following technical scheme:

an electromagnetic relay comprises a base, wherein a load system and a magnetic circuit system are installed on the base, the load system comprises a movable reed assembly and a static reed assembly, the movable reed assembly comprises a plurality of movable reeds which are overlapped together, the movable reeds at least have an arch bridge structure, the static reed assembly comprises a first terminal and a second terminal, the second terminal is provided with a static contact, one end of the movable reed assembly is connected with the first terminal, and the other end of the movable reed assembly is provided with a movable contact; the magnetic circuit system comprises a framework, an iron core, a yoke, an armature, a coil, a push piece and an elastic piece, wherein the framework is arranged on a base, the coil is sleeved outside the framework, the iron core is arranged in the framework in a penetrating mode, the armature comprises a vertical section which is positioned on one side of the iron core and is attracted or separated with the iron core and a transverse section which is contacted with the push piece, the yoke comprises a connecting part which is positioned on the other side of the iron core and is riveted with the iron core and a plate body part which is positioned above the transverse section and is contacted with the transverse section, the elastic piece comprises a connecting section which is fixed on the plate body part and a bending section which is used for elastically pressing the armature so as to press the inner side of the corner of the armature against the end part of the yoke, the other end of the push piece is contacted with the movable spring piece component, and the armature can drive the push piece to move so as to realize the closing or breaking of the movable contact and the static contact.

Furthermore, the plate body and the base are connected and fixed through a buckle structure.

Further, the buckle structure is: a first cutting groove and a first buckle are formed in one side of the plate body, and a second buckle matched with the first cutting groove and a second cutting groove matched with the first buckle are formed in the base.

Furthermore, a clamping hook is arranged on the base, and the other side of the plate body part can be clamped by the clamping hook.

Further, the movable contact is riveted with the movable contact spring assembly, and the fixed contact is riveted with the second terminal.

Further, one end of the movable spring piece component is connected with the first terminal in a riveting mode.

Further, the push sheet is contacted with the middle position of the movable spring plate assembly.

Furthermore, the base is provided with a partition plate, the partition plate divides the base into an upper area and a lower area, the magnetic circuit system is installed in the upper area, the load system is installed in the lower area, and the partition plate is provided with a through hole for the push sheet to be inserted into the lower area.

The cover body is connected with the base so as to cover the load system and the magnetic circuit system in a space enclosed by the cover body and the base.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses in, the movable reed subassembly adopts a plurality of movable reed superimposed structure mutually, and the movable reed has the arch bridge structure, so can increase the current-carrying capacity, saves space, reduces the relay consumption simultaneously, satisfies the big clearance requirement between contact and contact.

Drawings

Fig. 1 is a cross-sectional view of an electromagnetic relay provided by the present invention;

fig. 2 is a schematic diagram of a load system of an electromagnetic relay according to the present invention;

fig. 3 is a schematic diagram of a magnetic circuit system of an electromagnetic relay according to the present invention;

fig. 4 is a schematic diagram of a yoke of an electromagnetic relay according to the present invention;

fig. 5 is an assembly view of a yoke and a base of an electromagnetic relay according to the present invention;

fig. 6 is an exploded view of an electromagnetic relay according to the present invention;

in the figure: 1. a base; 11. a partition plate; 12. a hook; 13. a second buckle; 2. a load system; 21. a movable spring plate; 22. a movable contact; 23. a first terminal; 24. a second terminal; 25. a stationary contact; 3. a magnetic circuit system; 31. a framework; 32. an iron core; 33. a yoke iron; 330. a connecting portion; 331. a plate body portion; 3310. a first cut groove; 3311. a first buckle; 34. an armature; 340. a vertical section; 341. a transverse section; 35. a coil; 36. pushing the sheet; 37. a spring plate; 370. a connecting section; 371. a curved section; 4. a cover body.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", 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 description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like, are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numbers are used throughout the drawings for identical or corresponding elements (e.g., elements identified as "1XX" and "2XX" are structurally identical and functionally similar).

As shown in fig. 1-6, for the electromagnetic relay provided by the present invention, including a base 1, a load system 2 and a magnetic circuit system 3 are installed on the base 1, the load system 2 includes a movable spring piece assembly and a stationary spring piece assembly, the movable spring piece assembly includes a plurality of movable spring pieces 21, the plurality of movable spring pieces 21 are stacked together, and the movable spring pieces 21 at least have an arch bridge structure, the stationary spring piece assembly includes a first terminal 23 and a second terminal 24, the second terminal 24 is provided with a stationary contact 25, one end of the movable spring piece assembly is connected with the first terminal 23, and the other end of the movable spring piece assembly is provided with a movable contact 22; the magnetic circuit system 3 includes a frame 31, an iron core 32, a yoke 33, an armature 34, a coil 35, a push piece 36 and a spring piece 37, the frame 31 is disposed on the base 1, the coil 35 is sleeved outside the frame 31, the iron core 32 is disposed in the frame 31 in a penetrating manner, the armature 34 includes a vertical section 340 located on one side of the iron core 32 to be attracted to or separated from the iron core 32 and a horizontal section 341 contacting the push piece 36, the yoke 33 includes a connecting portion 330 located on the other side of the iron core 32 and riveted to the iron core 32 and a plate portion 331 located above the horizontal section 341 and contacting the horizontal section 341, the spring piece 37 includes a connecting section 370 fixed to the plate portion 331 and a bending section for elastically pressing against the armature 34 to press the inner side of a corner of the armature 34 against the end of the yoke 33, the other end of the push piece 36 contacts the movable spring piece assembly, and the armature 34 rotates to drive the push piece 36 to move, so as to realize the closing or opening of the movable contact 22 and the stationary contact 25.

In the present invention, when the armature 34 rotates with the iron core 32, the vertical section 340 swings and drives the push piece 36 to move downward, and the push piece 36 pushes the moving terminal to move toward the fixed terminal, so as to complete the actuation of the fixed contact 25 and the moving contact 22. The movable spring plate component adopts a structure that a plurality of movable spring plates 21 are overlapped, so that the current carrying capacity can be increased, the space is saved, and meanwhile, the power consumption of the relay is reduced; the requirement of large clearance between the contacts is met. The movable spring plate 21 has an arch bridge structure, so that the flexibility of the movable spring plate assembly can be increased.

Preferably, the plate portion 331 and the base 1 are connected and fixed by a snap structure. Yoke 33 closely cooperates through buckle structure and base 1, can prevent under operating condition because the not hard up between yoke 33 and the base 1 and take place the vibration, stable in structure, safe and reliable, anti-seismic performance is good.

Preferably, the buckle structure is: a first slot 3310 and a first buckle 3311 are formed on one side of the plate body 331, and a second buckle 13 engaged with the first slot 3310 and a second slot engaged with the first buckle 3311 are formed on the base 1. Through grooving and buckle matched with design, the equipment is convenient, connects firmly.

Preferably, a hook 12 is disposed on the base 1, and the hook 12 can hold the other side of the plate portion 331. The fastening of the yoke 33 to the base 1 is further enhanced by the hook 12.

Preferably, the movable contact 22 is riveted with the movable spring piece 21 assembly, and the fixed contact 25 is riveted with the second terminal 24.

Preferably, one end of the movable spring assembly is connected with the first terminal 23 in a riveting manner.

Preferably, the push piece 36 is in contact with the middle position of the movable spring plate 21 assembly. Thus, the stability of the motion of the movable spring plate 21 component can be ensured.

Preferably, the base 1 is provided with a partition plate 11, the partition plate 11 divides the base 1 into an upper area and a lower area, the magnetic circuit system 3 is installed in the upper area, the load system 2 is installed in the lower area, and the partition plate 11 is provided with a through hole for inserting the push plate 36 into the lower area. By arranging the partition plate 11, the insulation between the load system 2 and the magnetic circuit system 3 is improved, so that the relay can meet higher insulation requirements.

Preferably, the cover body 4 is further included, and the cover body 4 is connected with the base 1 so as to cover the load system 2 and the magnetic circuit system 3 in a space enclosed by the cover body 4 and the base 1. The load system 2 and the magnetic circuit system 3 can be well enclosed by the cooperation of the cover 4 and the base 1.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. An electromagnetic relay is characterized by comprising a base (1), wherein a load system (2) and a magnetic circuit system (3) are installed on the base (1), the load system (2) comprises a movable spring piece assembly and a static spring piece assembly, the movable spring piece assembly comprises a plurality of movable spring pieces (21), the movable spring pieces (21) are overlapped together, the movable spring pieces (21) are at least provided with an arch bridge structure, the static spring piece assembly comprises a first terminal (23) and a second terminal (24), the second terminal (24) is provided with a static contact (25), one end of the movable spring piece assembly is connected with the first terminal (23), and the other end of the movable spring piece assembly is provided with a movable contact (22); the magnetic circuit system (3) comprises a framework (31), an iron core (32), a yoke (33), an armature (34), a coil (35), a push sheet (36) and an elastic sheet (37), the framework (31) is arranged on the base (1), the coil (35) is sleeved on the outer side of the framework (31), the iron core (32) penetrates through the framework (31), the armature iron (34) comprises a vertical section (340) which is positioned at one side of the iron core (32) and is attracted or separated with the iron core (32) and a transverse section (341) which is contacted with the push sheet (36), the yoke (33) comprises a connecting part (330) which is positioned at the other side of the iron core (32) and is riveted with the iron core (32) and a plate body part (331) which is positioned above the transverse section (341) and is contacted with the transverse section (341), the elastic sheet (37) comprises a connecting section (370) fixed on the plate body part (331) and a bending section (371) used for being elastically pressed against the armature (34) to press the inner side of the corner of the armature (34) against the end part of the yoke (33), the other end of the push sheet (36) is contacted with the movable reed component, the armature (34) rotates to drive the push sheet (36) to move, so as to realize the closing or the opening of the movable contact (22) and the fixed contact (25).

2. The electromagnetic relay according to claim 1, characterized in that the plate portion (331) and the base (1) are fixed by a snap-fit connection.

3. The electromagnetic relay of claim 2, wherein the snap-fit structure is: a first cut groove (3310) and a first buckle (3311) are formed in one side of the plate body (331), and a second buckle (13) matched with the first cut groove (3310) and a second cut groove matched with the first buckle (3311) are formed in the base (1).

4. The electromagnetic relay according to claim 2, characterized in that the base (1) is provided with a hook (12), and the hook (12) can hold the other side of the plate body portion (331).

5. The electromagnetic relay according to claim 1, characterized in that the movable contact (22) is riveted to the movable spring assembly and the stationary contact (25) is riveted to the second terminal (24).

6. The electromagnetic relay according to claim 1, characterized in that one end of the movable reed assembly is connected with the first terminal (23) in a rivet manner.

7. The electromagnetic relay according to claim 1, characterized in that the push piece (36) is in contact with a middle position of the movable spring piece (21) assembly.

8. The electromagnetic relay according to claim 1, characterized in that the base (1) is provided with a partition plate (11), the partition plate (11) divides the base (1) into an upper region and a lower region, the magnetic circuit system (3) is mounted in the upper region, the load system (2) is mounted in the lower region, and the partition plate (11) is provided with a through hole into which the push piece (36) is inserted.

9. The electromagnetic relay according to claim 1, characterized by further comprising a cover (4), wherein the cover (4) is connected with the base (1) to cover the load system (2) and the magnetic circuit system (3) in a space enclosed by the cover (4) and the base (1).