CN219873335U

CN219873335U - Novel compact magnetic latching relay

Info

Publication number: CN219873335U
Application number: CN202223048296.3U
Authority: CN
Inventors: 陈星�; 吴强; 倪旺成
Original assignee: Zhejiang Great Electrical Co ltd
Current assignee: Zhejiang Great Electrical Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-10-20
Anticipated expiration: 2032-11-16

Abstract

A novel compact magnetic latching relay comprises a base, a coil assembly and a connecting assembly. The base comprises a base main body, wherein a coil part and a connecting part are arranged on the base main body. The coil part is provided with a yoke slot, and the connecting part comprises a containing cavity and a static spring slot. The coil assembly comprises a yoke, a coil frame, an iron core and a limiting piece. A group of magnetic steels are arranged between the yoke iron and the coil rack, the magnetic steels are adsorbed on the yoke iron, and the connecting component comprises a static spring plate, a movable spring plate, a plastic piece and an armature iron. The novel compact magnetic latching relay is characterized in that a group of magnetic steels are arranged between the yoke iron and the coil rack. The magnetic steel enables the connection state of the relay to be changed only by electrifying the armature iron core in a short time, the relay is not required to be turned on or off for a long time, and the magnetic steel is small in power consumption and beneficial to environmental protection.

Description

Novel compact magnetic latching relay

Technical Field

The utility model relates to the technical field of relays, in particular to a novel compact magnetic latching relay.

Background

The relay is an electric control device, and is an electric appliance which causes a predetermined step change in the controlled quantity in an electric appliance output circuit when the change in the input quantity reaches a prescribed requirement. It has an interactive relationship between the control system (also called input loop) and the controlled system (also called output loop). It is commonly used in an automatic control circuit and is actually an automatic switch that uses a small current to control a large current operation. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like.

The existing relays in the market mostly take electromagnetic relays as main materials, and have the advantages of low residual output voltage, no need of radiating fins, low price, capability of providing normally open and normally closed contacts of contacts, compatibility of AD and DC and the like. However, whether the contact is normally open or normally closed, the electromagnetic relay needs to be switched on for a long time to maintain the normally open or normally closed of the contact, which is not beneficial to environmental protection.

Disclosure of Invention

In view of the above, the present utility model provides a novel magnetic latching relay to solve the above technical problems.

A novel compact magnetic latching relay comprises a base, a group of coil assemblies arranged in the base and a group of connecting assemblies arranged in the base and positioned at one side of the coil assemblies, wherein the base comprises a base main body, a coil part and a connecting part arranged at one side of the coil part are arranged on the base main body, a yoke slot is arranged on the end face of the coil part, which is close to the connecting part, the connecting part comprises a containing cavity, and two static spring slots which are arranged in the containing cavity at intervals, a magnetic steel is arranged between the coil assemblies and the connecting assemblies, the coil assemblies comprise a yoke, a coil frame connected with one end of the yoke, a group of iron cores arranged in the coil frame and a limiting piece arranged between the yoke and the side wall of the coil frame, the magnetic steel is adsorbed on the yoke, one end of the coil frame is abutted with the magnetic steel, the connecting component comprises a pair of static spring pieces inserted in the static spring slot, a movable spring piece arranged in the accommodating cavity, a plastic piece and an armature, the plastic piece and the movable spring piece are connected through a connecting piece, one end of the armature is spliced with the plastic piece, the other end of the armature is clamped with a knife edge on the yoke, the magnetic steel magnetizes the yoke and the armature connected with the yoke, one ends of the armature and the yoke far away from the armature are respectively provided with an anode or a cathode, one end of the yoke is connected with the iron core, the coil frame magnetizes the iron core after being electrified, one end of the armature is adsorbed on the iron core, a magnetic force loop is formed among the magnetic steel, the yoke, the armature and the iron core, after the current is disconnected, the iron core contacted with the armature is magnetized through the magnetic steel, and the connection state between the armature and the iron core is maintained.

Further, the base body includes four legs disposed on the base body.

Further, the coil part is in a shape of a Chinese character 'tu', the connecting part is in a shape of a Chinese character 'tu', and the coil part is in concave-convex fit with the connecting part.

Further, the coil frame comprises a winding post, a clamping seat arranged at one end of the winding post and clamped with the yoke, and a top cover arranged at the other end of the winding post.

Further, the winding post is long rectangular, the inside of the winding post is hollow, and two ends of the winding post are open.

Further, the limiting piece is arranged on the end face of the yoke, which faces away from the coil rack, and the limiting piece is provided with a long hook plate and a short hook plate.

Further, one end of the static spring plate extends to the outside of the static spring slot.

Compared with the prior art, the novel compact magnetic latching relay provided by the utility model has the advantage that a group of magnetic steels are arranged between the yoke iron and the coil frame. The magnetic steel enables the connection state of the relay to be changed only by electrifying the armature iron core in a short time, the relay is not required to be turned on or off for a long time, and the magnetic steel is small in power consumption and beneficial to environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of a novel compact magnetic latching relay provided by the utility model.

Fig. 2 is a schematic structural view of a base of the novel compact magnetic latching relay of fig. 1.

Fig. 3 is an exploded view of the novel compact magnetic latching relay of fig. 1.

Fig. 4 is a schematic structural view of a coil former of the novel compact magnetic latching relay of fig. 1.

Fig. 5 is a schematic structural view of a connection assembly of the novel compact magnetic latching relay of fig. 1.

Fig. 6 is a cross-sectional view of a novel compact magnetic latching relay of fig. 1.

Detailed Description

Specific embodiments of the present utility model are described in further detail below. It should be understood that the description herein of the embodiments of the utility model is not intended to limit the scope of the utility model.

Fig. 1 to 6 show schematic structural views of a novel compact magnetic latching relay provided by the utility model. The novel compact magnetic latching relay comprises a base 10, a group of coil assemblies 20 arranged in the base 10 and a group of connecting assemblies 30 arranged in the base 10 and positioned on one side of the coil assemblies 20, wherein a piece of magnetic steel 40 is arranged between the coil assemblies 20 and the connecting assemblies 30. It is conceivable that the novel compact magnetic latching relay further includes other functional structures such as connection rivets, connection terminals, etc., which are known to those skilled in the art and will not be described in detail herein.

The base 10 includes a base body 11, and a coil portion 12 and a connection portion 13 provided on one side of the coil portion 12 are provided on the base body 11. The coil part 12 and the connection part 13 are used for placing the coil assembly 20 and the connection assembly 30, respectively. The coil part 12 is in a convex shape, the connecting part 13 is in a concave shape, and the coil part 12 and the connecting part 13 are in concave-convex fit with each other. The coil part 12 is provided with a yoke slot 121 near the end surface of the connecting part 13, the connecting part 13 includes a holding cavity 131, two static spring slots 132 spaced in the holding cavity 131, and the other end surface of the base body 11 is provided with four support legs 14. The legs 14 raise the height of the base body 11 so that connection terminals and the like can be easily extended to external connection devices.

The coil assembly 20 includes a yoke 21, a bobbin 22 coupled to one end of the yoke 21, a set of iron cores 23 provided in the bobbin 22, and a stopper 24 provided between the yoke 21 and a sidewall of the bobbin 22.

Referring to fig. 2, the yoke 21 is L-shaped. One end of the yoke 21 is provided with a rectangular groove 211, and the other end is provided with a knife edge 212. The rectangular groove 211 is provided at a shorter side of the yoke 21. The longer side of the yoke 21 is abutted against the end face of the coil portion 12 near the connecting portion 13. The rectangular groove 211 is inserted with the iron core 23. The knife edge 212 is used to connect the connection assembly 30.

The coil former 22 includes a winding post 221, a clamping seat 222 arranged at one end of the winding post 221 and clamped with the yoke 21, and a top cover 223 arranged at the other end of the winding post 221.

The winding post 221 has a rectangular shape, and is hollow at its inside and open at both ends. Copper coils 224 are wound around the outer surface of the winding post 221. The copper coil 224 may be powered on to generate positive and negative poles at both ends of the copper coil 224. The clamping seat 222 has one end connected to the winding post 221, and the other end provided with a clamping groove 225 having the same shape as that of one end of the yoke 21, so as to be clamped with the yoke 21. The clamping seat 222 cooperates with the top cover 223 to limit the copper coil 224.

The iron core 23 has an i-shaped outer shape, and the iron core 23 is inserted into the winding post 221. And both end portions of the core 23 extend to the outside of the winding post 221. One end of the iron core 23 is inserted into the rectangular groove 211, and the other end is used for contacting with the connecting assembly 30.

The limiting piece 24 is arranged on the end surface of the yoke 21 facing away from the coil former 22. The limiting tab 24 has a long hook plate 241 and a short hook plate 242. The limiting plate 24 is used in conjunction with the connecting assembly 30, and will be described below in conjunction with the connecting assembly 30.

A set of magnetic steel 40 is arranged between the yoke 21 and the coil frame 22, the magnetic steel 40 is adsorbed on the yoke 21, and one end of the coil frame 22 is abutted with the magnetic steel 40.

The connecting assembly 30 includes a pair of fixed springs 31 inserted in the fixed spring insertion grooves 132, a movable spring 32 disposed in the receiving chamber 131, a plastic member 33, and an armature 34. The short hook plate 242 on the limiting plate 24 is clamped with the armature 34.

The two static springs 31 are inserted into the static spring slot 132 at intervals, and one end of each static spring extends to the outside of the static spring slot 132. The plastic member 33 is connected to the movable contact spring 32 via a connecting member 35. The movable reed 32 is used for communicating the two fixed reeds 31, thereby energizing. The plastic member 33 is used for increasing the creepage distance and increasing the safety.

The armature 34 is L-shaped, and one end of the armature 34 is inserted into the plastic part 34. The armature 34 is provided with a clamping interface 341, and the clamping interface 341 is clamped with the knife edge 212. And the size of the clamping interface 341 is slightly larger than that of the knife edge 212, so that the armature 34 can shake on the yoke 21, thereby realizing the connection or disconnection between the movable spring plate 32 and the static spring plate 31.

In use, the magnetic steel 40 is attracted to the yoke 21. The yoke 21 and the armature 34 engaged with the yoke 21 are magnetized such that the yoke 21 and the armature 34 each have a positive electrode or a negative electrode. And since the iron core 23 is inserted in the rectangular groove 211, the iron core 23 also has magnetism. When the copper coil 224 is energized, the positive and negative poles are provided at the two ends of the iron core 23, and only the current direction is changed, so that the attraction or repulsion phenomenon is generated between the armature 34 and the end of the iron core 23 close to the armature 34. When the contact pieces are attracted, the movable contact piece 32 is connected with the static spring piece 31, and the relay is in a switch-on state. After the current is turned off, the iron core 23 is magnetized, so that the attractive state with the armature 34 can be maintained. When the relay needs to be opened, the armature 34 and the iron core 23 can be opened only by changing the current direction to repel each other. And the long hook plate 241 of the limiting piece 24 can maintain the distance between the armature 34 and the iron core 23 after being disconnected.

Compared with the prior art, the novel compact magnetic latching relay provided by the utility model has the advantage that a group of magnetic steels 40 are arranged between the yoke 21 and the coil frame 22. The magnetic steel 40 can change the connection state of the relay by only needing short-time energization between the armature 34 and the iron core 23, and the relay is not required to be turned on or off for a long time, so that the power consumption is low and the environment is protected.

The above is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model, and any modifications, equivalent substitutions or improvements within the spirit of the present utility model are intended to be covered by the claims of the present utility model.

Claims

1. A novel compact magnetic latching relay is characterized in that: the novel yoke magnetic latching relay comprises a base, a group of coil components arranged in the base and a group of connecting components arranged in the base and positioned on one side of the coil components, wherein the base comprises a base main body, a coil part and a connecting part arranged on one side of the coil part are arranged on the base main body, the coil part is close to the end face of the connecting part and is provided with a yoke iron slot, the connecting part comprises a containing cavity, two fixed spring slots arranged in the containing cavity at intervals, a magnetic steel is arranged between the coil components and the connecting components, the coil components comprise a yoke iron, a coil frame connected with one end of the yoke iron, a group of iron cores arranged in the coil frame, and a limit piece arranged between the yoke iron and the side wall of the coil frame, the magnetic steel is adsorbed on the yoke iron, one end of the coil frame is abutted with the magnetic steel, the connecting components comprise a pair of fixed spring slot, the fixed spring is arranged in the containing cavity, the two fixed spring slots are arranged at intervals, the fixed spring slots are connected with one end of the iron core, the movable spring iron is far away from one end of the movable spring, the movable spring is connected with one end of the movable spring through the movable spring, the movable spring is far away from the other end of the movable spring, the movable spring is connected with the movable spring through the movable iron, the movable iron is connected with one end through the movable iron core through the magnetic iron, the movable iron is connected with one end through the magnetic iron, after the current is disconnected, the iron core contacted with the armature is magnetized through the magnetic steel, and the connection state between the armature and the iron core is maintained.

2. The novel compact magnetic latching relay of claim 1, wherein: the base body includes four legs disposed on the base body.

3. The novel compact magnetic latching relay of claim 2, wherein: the coil part is in a convex shape, the connecting part is in a concave shape, and the coil part is in concave-convex fit with the connecting part.

4. The novel compact magnetic latching relay of claim 1, wherein: the coil rack comprises a winding post, a clamping seat arranged at one end of the winding post and clamped with the yoke iron, and a top cover arranged at the other end of the winding post.

5. The novel compact magnetic latching relay of claim 4, wherein: the wrapping post is long rectangle, and its inside is cavity, both ends opening.

6. The novel compact magnetic latching relay of claim 1, wherein: the limiting piece is arranged on the end face of the yoke, which is opposite to the coil rack, and the limiting piece is provided with a long hook plate and a short hook plate.

7. The novel compact magnetic latching relay of claim 1, wherein: one end of the static spring plate extends to the outside of the static spring slot.