CN219457471U - High withstand voltage magnetic latching relay - Google Patents

Abstract

A high withstand voltage magnetic latching relay includes an insulating housing, a driving portion, and an electrical connection portion. The insulating housing includes a base and a top cover. The base comprises a driving slot, a reed slot and a chute. The driving part includes a coil assembly, a permanent magnet. The electric connection part comprises a dynamic and static component, one end of the long poking plate is connected with the permanent magnet, the other end of the long poking plate is connected with the dynamic and static component, and the permanent magnet is covered with an insulating material. According to the high-voltage-resistant magnetic latching relay, the dynamic and static components are arranged in one base, so that one relay can be connected with a plurality of electric equipment at the same time. And the purpose of switching on or off a circuit is achieved through the long pulling piece. The insulating material covering the limiting and resisting plate and the surface of the second swing arm can greatly improve the pressure resistance between parts. And the ionization phenomenon caused by the rise of the internal voltage of the relay after a plurality of electric appliances are connected in series is avoided.

Description

High withstand voltage magnetic latching relay

Technical Field

The utility model relates to the technical field of relays, in particular to a high-voltage-resistant magnetic latching relay.

Background

The relay is an electric control device, when the change of input quantity (exciting quantity) reaches the specified requirement, the controlled quantity is made to produce a preset step change in the electric output circuit, and it has an interactive relationship between control system (also called input circuit) and controlled system (also called output circuit), and is usually applied in automatic control circuit, and it is an "automatic switch" which uses small current to control large current operation, so that it can implement the functions of automatic regulation, safety protection and switching circuit in the circuit, and its working principle is that the magnetic flux produced after the coil is energized is passed through the magnetic circuit formed from movable iron core, external iron core, movable iron core end cover and magnetic circuit working air gap, and under the action of magnetic field force the movable iron core is sucked toward movable iron core end cover so as to push contact to close and make circuit be conducted.

Most of the existing magnetic latching relays can only be connected with one electric equipment at a time, and when a plurality of equipment needs to be connected, one relay needs to be arranged on each circuit, so that the circuit arrangement cost is increased. Therefore, a magnetic latching relay capable of being connected in series is available in the market, and only one relay is needed when a plurality of circuits are connected.

However, after the above magnetic latching relay is connected to a plurality of devices and is powered on, the number of the devices connected is increased, and the voltage inside the relay is also increased, so that the original voltage-withstand level inside the relay is insufficient to withstand the voltage after being connected in series, resulting in ionization.

Disclosure of Invention

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

The utility model provides a high withstand voltage magnetism keeps relay, its includes an insulating housing, a setting is in drive division in the insulating housing, and a setting is in the electric connection portion of drive division one side, the insulating housing includes a base, and a lid is established top cap on the base, the base includes a setting in the drive slot on an tip, at least two sets up the reed slot of drive slot one side, and a setting is in the spout of reed slot one side, the one end of spout extends to in the drive slot, the drive division includes one and sets up the coil assembly on the terminal surface of being close to one side in the drive slot, a set of setting is in the permanent magnet of coil assembly one side, and a set of slip sets up long the setting is in the long setting of board in the spout, electric connection portion includes at least one set of inlaying and is established the sound assembly in the reed slot, one end of long setting board with the permanent magnet is connected, the other end with the permanent magnet is connected, it has insulating layer to wrap up.

Further, a plurality of plug holes are formed in the base, and a plurality of plug posts matched with the plug holes are arranged on the top cover.

Further, a protruding joint column is arranged on the top cover close to one end portion.

Further, a U-shaped buckle plate is arranged on the outer side end face of the insulating shell.

Further, a convex connection hole is formed in one side of the buckle plate, and an inclined surface is arranged between the convex connection hole and the side edge of the buckle plate.

Further, the coil assembly comprises a coil skeleton embedded in the driving slot and an electromagnetic coil wound on the coil skeleton.

Further, the permanent magnet comprises a permanent magnet with north and south poles, a first swing arm arranged on the end face of the permanent magnet far away from the coil assembly, and a second swing arm arranged on the other end of the permanent magnet, where the first swing arm is arranged.

Further, a pair of limiting and resisting plates are respectively arranged on two end faces of the permanent magnet, which face the length side end face of the base body.

Further, a touch switch is further arranged at the position of the driving part at the free end of the second swing arm.

Further, the long pulling plate comprises a pulling plate main body, a plugging groove arranged on one end part of the pulling plate main body, and a plurality of clamping openings arranged on one side of the pulling plate main body at intervals.

Compared with the prior art, the high-voltage-resistant magnetic latching relay provided by the utility model has the advantages that the dynamic and static components are arranged in one base, so that one relay can be connected with a plurality of electric equipment at the same time. And the purpose of switching on or off a circuit is achieved through the long pulling piece. The insulating material covering the limiting and resisting plate and the surface of the second swing arm can greatly improve the pressure resistance between parts. And the ionization phenomenon caused by the rise of the internal voltage of the relay after a plurality of electric appliances are connected in series is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a high withstand voltage magnetic latching relay provided by the utility model.

Fig. 2 is a schematic view of a base of the high withstand voltage magnetic latching relay of fig. 1.

Fig. 3 is a schematic view of the top cover of the high withstand voltage magnetic latching relay of fig. 1.

Fig. 4 is a schematic view showing an internal structure of the high withstand voltage magnetic latching relay of fig. 1.

Fig. 5 is a schematic structural view of a long pulling plate of the high withstand voltage magnetic latching relay of fig. 4.

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 5 are schematic structural views of a high withstand voltage magnetic latching relay according to the present utility model. The high withstand voltage magnetic latching relay includes an insulating housing 10, a driving part 20 provided in the insulating housing 10, and an electrical connection part 30 provided at one side of the driving part 20. It is conceivable that the high withstand voltage magnetic latching relay further includes other functional structures such as a buckle, a connection terminal, etc., which are known to those skilled in the art, and will not be described herein.

The insulating housing 10 includes a base 11, and a top cover 12 covering the base 11. The base 11 includes a driving slot 111 provided at one end, at least two reed slots 112 provided at one side of the driving slot 111, and a chute 113 provided at one side of the reed slots 112, one end of the chute 113 extending into the driving slot 111. The driving slot 111 is used for inserting the driving part 20, and the reed slot 112 is used for inserting the electric connection part 30.

The base 11 is further provided with a plurality of plug holes 114, the top cover 12 is provided with a plurality of plug posts 121 matched with the plug holes 114, and the plug holes 114 and the plug posts 121 are mutually matched to further fix the base 11 and the top cover 12. The top cover 12 is also provided with a boss 122 near one end.

The outer side end face of the insulating shell 10 is also provided with a U-shaped pinch plate 13. A protruding connection hole 131 is formed in one side of the buckle plate 13, and an inclined plane is arranged between the protruding connection hole 131 and the side edge of the buckle plate 13. The buckle 13 and the top cover 12 are matched with the convex connection hole 131 through the convex connection post 122, so that the assembled structure is further stabilized.

The driving part 20 includes a coil block 21 disposed on an end surface of the driving slot 111 near one side, a set of permanent magnets 22 disposed on one side of the coil block 21, and a long dial 23 slidably disposed in the chute 113.

The coil block 21 includes a coil bobbin 211 inserted in the driving slot 111, and an electromagnetic coil 212 wound around the coil bobbin 211. The coil bobbin 211 is connected to an external power source through a connection terminal, and generates a magnetic field when the electromagnetic coil 212 is energized, thereby providing the electromagnetic coil 212 with north and south poles.

The permanent magnet 22 includes a permanent magnet 221 having north and south poles, and a first swing arm 222 provided on an end surface of the permanent magnet 221 remote from the coil block 21. The permanent magnet 221 is provided with a second swing arm 223 on the other end of the first swing arm 222. A pair of limiting and retaining plates 224 are respectively disposed on the two end surfaces of the permanent magnet 221 facing the longitudinal end surface of the base body 111. The limiting and retaining plate 224 is used for abutting against the coil frame 211 when the permanent magnet 221 rotates, so as to limit the rotation angle of the permanent magnet 221. And the outer surface of the limit abutment 224 is covered with an insulating layer, which can be made of a commercially known insulating material, so as to improve the pressure resistance of the limit abutment 224.

The first swing arm 222 is disposed towards the chute 113, and a free end of the first swing arm 222 is rotatably connected with one end of the long dial plate 23. The driving part 20 is further provided with a touch switch 24 at a position of the free end of the second swing arm 223. The first swing arm 222 swings to drive the long pulling plate 23 to slide in the sliding groove 113. The second swing arm 223 touches the touch switch 24 along with the swing of the permanent magnet 221, and the touch switch 24 sends a signal with an external control panel, so that an operator can acquire the connection state of the circuit. The outer surface of the second swing arm 223 is also covered with an insulating layer, so as to increase the voltage-resistant performance.

Referring to fig. 5, the long pulling plate 23 is integrally made of an insulating material. The long pulling plate 23 includes a pulling plate body 231, a plugging slot 232 provided at an end of the pulling plate body 231, and a plurality of clamping ports 233 provided at intervals on one side of the pulling plate body 231. The side of the pulling plate body 231 facing away from the clamping opening 233 is a complete plane. The end surface of the shifting plate body 231 facing away from the clamping opening 233 is slidably disposed in the chute 113.

The electrical connection part 30 includes at least one set of moving and static components 31 embedded in the reed socket 112. Each movable and static assembly 31 includes a static reed 311 fixedly disposed at one side of the reed socket 112, and a movable reed 312 fixedly disposed at one end of the movable reed 312 at the other side of the reed socket 112. The fixed spring 311 and the movable spring 312 are respectively provided with a contact 313. The contact of the contact 313 serves the purpose of completing the ground circuit.

One end of the static spring piece 311 extends to the outside of the base 11. The portion of each static spring 311 extending to the outside of the base 11 can be used to connect to electrical equipment. The free end of each movable spring 312 is engaged in the holding port 233. The free end of the movable contact spring 312 changes angle with the sliding of the long dial 23, so that the contact 313 provided on the movable contact spring 312 is turned on or off with the contact 313 provided on the fixed contact spring 311.

Compared with the prior art, the high-voltage-resistant magnetic latching relay provided by the utility model has the advantages that one relay can be connected with a plurality of electric equipment simultaneously by arranging the dynamic and static components 31 in one base 11. And the purpose of switching on or off the circuit is achieved through the long pulling piece 23. The insulating material covering the limiting and retaining plates 224 and the surfaces of the second swing arms 223 can greatly improve the pressure resistance between the parts. And the ionization phenomenon caused by the rise of the internal voltage of the relay after a plurality of electric appliances are connected in series is avoided.

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 (10)

1. A high withstand voltage magnetic latching relay is characterized in that: the high-voltage-resistant magnetic latching relay comprises an insulating shell, a driving part arranged in the insulating shell, and an electric connection part arranged on one side of the driving part, wherein the insulating shell comprises a base and a top cover arranged on the base, the base comprises a driving slot arranged on one end part, at least two reed slots arranged on one side of the driving slot, and a sliding groove arranged on one side of the reed slot, one end of the sliding groove extends into the driving slot, the driving part comprises a coil assembly arranged in the driving slot and close to one end face of the driving slot, a group of permanent magnets arranged on one side of the coil assembly, and a long moving plate arranged in the sliding groove in a sliding mode, the electric connection part comprises at least one group of moving and static assemblies embedded in the reed slot, one end of the long moving plate is arranged in the sliding groove in a sliding mode, the other end of the long moving plate is connected with the permanent magnets, and the permanent magnets are wrapped with insulating layers.

2. The high withstand voltage magnetic latching relay according to claim 1, wherein: the base is provided with a plurality of plug holes, and the top cover is provided with a plurality of plug posts matched with the plug holes.

3. The high withstand voltage magnetic latching relay according to claim 1, wherein: the top cover is also provided with a convex connection column near one end part.

4. The high withstand voltage magnetic latching relay according to claim 1, wherein: the outer side end face of the insulating shell is also provided with a U-shaped buckle plate.

5. The high withstand voltage magnetic latching relay according to claim 4, wherein: a convex connecting hole is formed in one side of the buckle plate, and an inclined surface is arranged between the convex connecting hole and the side edge of the buckle plate.

6. The high withstand voltage magnetic latching relay according to claim 1, wherein: the coil assembly comprises a coil framework embedded in the driving slot and an electromagnetic coil wound on the coil framework.

7. The high withstand voltage magnetic latching relay according to claim 1, wherein: the permanent magnet comprises a permanent magnet with a north and a south pole, a first swing arm arranged on the end face of the permanent magnet far away from the coil assembly, and a second swing arm arranged on the other end of the permanent magnet where the first swing arm is arranged.

8. The high withstand voltage magnetic latching relay according to claim 7, wherein: and a pair of limiting and resisting plates are respectively arranged on two end faces of the permanent magnet, which face the length side end face of the base body.

9. The high withstand voltage magnetic latching relay according to claim 7, wherein: the driving part is positioned at the free end of the second swing arm and is also provided with a touch switch.

10. The high withstand voltage magnetic latching relay according to claim 1, wherein: the long shifting plate comprises a shifting plate main body, a plugging groove arranged on one end part of the shifting plate main body, and a plurality of clamping openings arranged on one side of the shifting plate main body at intervals.