Dual power conversion magnetic latching relay

Abstract

The utility model discloses a double power conversion magnetic latching relay that is good in stability and better in buffering. The utility model discloses a technical scheme that includes: base, contact system and electromagnetic system arranged in the base, the electromagnetic system includes framework, iron core arranged in the framework, armature riveted at both ends of the iron core, magnetic steel piece arranged between the armature and push plate connected to the lower end of the magnetic steel piece, the contact system includes two static contact supports oppositely arranged at the lower end of the base, movable spring seat arranged at the upper end of the base and static contact riveted at the static contact support.

Description

Technical Field

[0001] This utility model belongs to the field of relays, and in particular relates to a magnetic latching relay. Background Technology

[0002] A dual-power conversion magnetic latching relay is a type of relay that uses the magnetic field of a permanent magnet to "lock" the switching state, enabling automatic switching between two power sources and ensuring the continuity and reliability of power supply. The structure of a traditional dual-power conversion magnetic latching relay includes: a base, a contact system and an electromagnetic system housed within the base. The electromagnetic system includes a frame, an iron core within the frame riveted to both ends of the iron core, magnets positioned between the armatures, and a push plate connected to the lower end of the magnets. The contact system includes two stationary contact supports opposite each other at the lower end of the base, a moving spring seat at the upper end of the base, stationary contacts riveted to the stationary contact supports, a spring assembly riveted to the moving spring seat, and moving contacts riveted to both sides of the lower end of the spring assembly. Because the dual-power conversion magnetic latching relay has double-sided moving contacts, higher requirements are placed on stability and buffering during switching. Traditional spring assemblies are typically connected to the push plate via clips, resulting in insufficient stability and buffering. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dual-power conversion magnetic latching relay with better stability and buffering performance.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a base, a contact system and an electromagnetic system disposed within the base. The electromagnetic system includes a frame, an iron core disposed within the frame, armatures riveted to both ends of the iron core, a magnetic steel component disposed between the armatures, and a push plate connected to the lower end of the magnetic steel component. The contact system includes two stationary contact supports disposed opposite to each other at the lower end of the base, a movable spring seat disposed at the upper end of the base, stationary contacts riveted to the stationary contact supports, a spring plate assembly riveted to the movable spring seat, and movable contacts riveted to both sides of the lower end of the spring plate assembly. Spring plates are riveted to both sides of the lower end of the spring plate assembly. Each spring plate includes a convex surface and a flat surface disposed at both ends of the convex surface. The front end of the push plate is provided with a slot, and the lower end of the spring plate assembly is engaged in the slot of the push plate through the spring plate.

[0005] A set of slots is provided on the convex surface.

[0006] The reed assembly is composed of 2-4 reeds with curved sections stacked together, and contact pressure plates are riveted to both sides of the lower end. The moving contact is riveted to the contact pressure plates.

[0007] The magnetic steel component includes an iron sheet bracket and two iron sheets embedded in the iron sheet bracket. The iron sheet bracket has a first rotating shaft integrally formed at both ends and a push rod integrally formed at the lower end. The push rod has a second rotating shaft integrally formed at the bottom. The push plate is provided with a shaft groove connected to the second rotating shaft, and the second rotating shaft has arc-shaped surfaces at both ends.

[0008] The front end of the push plate is provided with a guide rod, and the base is provided with a guide groove adapted to the guide rod.

[0009] The base is provided with a groove for mounting the push plate, and a set of spaced ribs are provided on both sides of the groove.

[0010] The advantages of this utility model of dual power supply conversion magnetic latching relay are as follows: the lower end of the reed group is snapped into the slot of the push plate by the spring plate, which not only makes the connection with the push plate more stable, but also makes the reed group have buffering properties during the switching process between the two stationary contacts.

[0011] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the dual-power conversion magnetic latching relay of this utility model;

[0013] Figure 2 This is a schematic diagram of the moving contact assembly of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the push plate of this utility model;

[0015] Figure 4 This is a structural schematic diagram of the magnetic steel component of this utility model. Detailed Implementation

[0016] Reference Figure 1-4As shown, the dual-power conversion magnetic latching relay of this utility model includes a base 1, a contact system 2 and an electromagnetic system 3 disposed within the base 1. The electromagnetic system 3 includes a frame 4, an iron core 5 disposed within the frame 4, armatures 6 riveted to both ends of the iron core 5, a magnet 7 disposed between the armatures 6, and a push plate 8 connected to the lower end of the magnet 7. The contact system 2 includes two stationary contact supports 9 disposed opposite to each other at the lower end of the base 1, a movable spring seat 10 disposed at the upper end of the base 1, a stationary contact 32 riveted to the stationary contact supports 9, a spring assembly 11 riveted to the movable spring seat 10, and movable contacts 12 riveted to both sides of the lower end of the spring assembly 11. Spring plates 13 are riveted to both sides of the lower end of the spring assembly 11, and the spring plates 13 include a convex surface 14 and a flat surface 15 disposed at both ends of the convex surface 14. The front end of the push plate 8 is provided with a slot 16, and the lower end of the spring assembly 11 is engaged in the slot 16 of the push plate 8 through the convex surface 14 of the spring sheet 13. The flat surface 15 is riveted to the spring assembly 11.

[0017] Preferably, the convex surface 14 is provided with a set of slots 17. By providing the slots 17, the elasticity of the spring sheet 13 is improved, thereby further improving the cushioning and holding force.

[0018] Preferably, the reed assembly 11 is composed of 2-4 stacked reeds 19 with bent portions 18, ideally 4 reeds 19, to improve the mechanical life of the reed assembly 11. Contact plates 20 are riveted to both sides of the lower end of the reed assembly 11, and the moving contact 12 is riveted to the contact plates 20. By setting the contact plates 20, the lower end connection of the reed assembly 11 is made more stable.

[0019] Preferably, the magnet component 7 includes an iron sheet support 21 and two iron sheets 22 embedded in the iron sheet support 21. The iron sheet support 21 has a first rotating shaft 23 integrally formed at both ends, a push rod 24 integrally formed at the lower end of the iron sheet support 21, and a second rotating shaft 25 integrally formed at the bottom of the push rod 24. The iron sheet support 21 is rotatably connected to the base 1 via the first rotating shaft 23. This integrated structure improves the strength and stability of the magnet component 7. The push plate 8 has a shaft groove 26 connected to the second rotating shaft 25, and the second rotating shaft 25 has arc-shaped surfaces 27 at both ends. The arc-shaped surfaces 27 on both sides contact the surface of the second rotating shaft 25 to reduce rotational resistance.

[0020] Preferably, the front end of the push plate 8 is provided with a guide rod 28, and the base 1 is provided with a guide groove 29 adapted to the guide rod 28. The cooperation between the guide rod 28 and the guide groove 29 improves the stability of the movement of the push plate 8.

[0021] Preferably, the base 1 is provided with a groove 30 for mounting the push plate 8, and a set of spaced-apart ribs 31 are provided on both sides of the groove 30. The ribs 31 contact the surface of the push plate 8 to reduce the moving resistance of the push plate 8.

[0022] The foregoing is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A double power conversion magnetic latching relay, comprising a base (1), a contact system (2) and an electromagnetic system (3) arranged in the base (1), the electromagnetic system (3) comprising a skeleton (4), an iron core (5) arranged in the skeleton (4), an armature (6) riveted at both ends of the iron core (5), a magnetic steel piece (7) arranged between the armature (6), and a push plate (8) connected to the lower end of the magnetic steel piece (7), characterized in that: The contact system (2) comprises two static contact supports (9) oppositely arranged at the lower end of the base (1), a dynamic spring seat (10) arranged at the upper end of the base (1), a static contact (32) riveted to the static contact support (9), a spring piece group (11) riveted to the dynamic spring seat (10), and a dynamic contact (12) riveted to the lower end of the spring piece group (11) on both sides. The lower end of the spring piece group (11) is riveted with spring pieces (13) on both sides. The spring pieces (13) comprise convex surfaces (14) and flat surfaces (15) arranged at both ends of the convex surfaces (14). The front end of the push plate (8) is provided with a clamping groove (16), and the lower end of the spring piece group (11) is clamped in the clamping groove (16) of the push plate (8) through the spring pieces (13). ​ 2. The dual power conversion magnetic latching relay of claim 1, wherein: A group of grooves (17) are arranged on the convex surfaces (14).

3. The dual power conversion magnetic latching relay of claim 1, wherein: The spring piece group (11) is composed of 2-4 spring pieces (19) with bending parts (18) and is riveted with contact pressure plates (20) on both sides of the lower end. The dynamic contact (12) is riveted to the contact pressure plates (20).

4. The dual power conversion magnetic latching relay of claim 1, wherein: The magnetic steel part (7) comprises an iron sheet support (21) and two iron sheets (22) inlaid in the iron sheet support (21). The iron sheet support (21) is integrally formed with a first rotating shaft (23) at both ends and a push rod (24) at the lower end. The push rod (24) is integrally formed with a second rotating shaft (25) at the bottom. The push plate (8) is provided with a shaft groove (26) connected with the second rotating shaft (25), and the second rotating shaft (25) is provided with an arc surface (27) at both ends.

5. The dual-power conversion magnetic latching relay according to claim 1, characterized in that: The front end of the push plate (8) is provided with a guide rod (28), and the base (1) is provided with a guide groove (29) matched with the guide rod (28).

6. The dual power conversion magnetic latching relay of claim 1, wherein: The base (1) is provided with a sliding groove (30) for mounting the push plate (8), and the sliding groove (30) is provided with a group of convex ribs (31) arranged at intervals on both sides.

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