CN219350091U

CN219350091U - Magnetic latching relay with novel pushing plate

Info

Publication number: CN219350091U
Application number: CN202222242385.5U
Authority: CN
Inventors: 邹培浩; 肖文信; 王军; 刘岚
Original assignee: Jiaxing Gretel Intelligent Manufacturing Co ltd
Current assignee: Jiaxing Gretel Intelligent Manufacturing Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-07-14
Anticipated expiration: 2032-08-24

Abstract

A magnetic latching relay with a novel push plate includes a housing, a drive assembly, and an electrical connection assembly. The driving assembly comprises a coil part, a magnetic steel part and a pushing plate. The magnetic steel part comprises a permanent magnet and a swing arm. The pushing plate comprises a pushing plate main body, a slot and a clamping groove. The electrical connection assembly includes a stationary assembly, and a movable assembly. The movable assembly comprises a movable reed and a movable contact. The end of movable reed is provided with the hook plate, the rotation position of permanent magnet extremely distance between the promotion board is less than the length of swing arm, works as the promotion board will drive assembly with when the electricity coupling assembling links together, swing arm free end holding in the slot, movable reed holding in the joint inslot, the extending direction of hook plate with the extending direction mutually perpendicular of movable reed, just the hook plate butt in on the promotion board has restricted movable reed with the position between the promotion board.

Description

Magnetic latching relay with novel pushing plate

Technical Field

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

Background

The relay is an electric control device, and when the change of the input quantity reaches a prescribed requirement, the controlled quantity is subjected to a preset step change in an electric output circuit. It has a control system (also known as an input loop) and a controlled system (also known as an output loop). The automatic switch is generally applied to an automatic control circuit, is an automatic switch which uses small current to control large current to operate, and plays roles of automatic adjustment, safety protection, circuit switching and the like in the circuit.

In chinese patent CN201920778757.1, a magnetic latching relay is disclosed, which includes a housing, a bottom plate located in the housing, an electromagnetic assembly located in the housing and disposed on the bottom plate, a moving contact unit, a first fixed contact unit, a second fixed contact unit, a pushing plate connecting the electromagnetic assembly and the moving contact unit, a fixed clamping plate disposed on one side of the electromagnetic assembly, and a movable clamping plate disposed on the other side of the electromagnetic assembly. It can be seen that the power is turned on or off by the push plate. However, the push plate in the relay is in contact with the movable contact unit only through the movable contact unit and one side of the push plate, so that the relay is easy to fall off in daily use. And the free end of the swing arm of the magnetic steel part in the relay is directly inserted into the opening on the pushing plate, the pushing plate is driven to move by the abutting connection of the free end of the swing arm and the two end surfaces of the opening, so that the free end of the swing arm excessively passes through the opening in daily use, the swing arm and the pushing plate are blocked, the connection and disconnection of the moving contact unit and the static contact unit are affected, and the relay is caused to work to fail.

Disclosure of Invention

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

A magnetic latching relay with a novel push plate comprises a housing, a driving component arranged in the housing, and an electric connection component connected with the driving component; the shell comprises a hollow base, a cover plate and a plurality of opening grooves, wherein the cover plate is covered on an opening of the base, a plurality of partition plates and a plurality of opening grooves are arranged in the base, the driving assembly comprises a coil part, a magnetic steel part and a pushing plate, the magnetic steel part is arranged on one side of the coil part facing towards the electric connection assembly, the pushing plate is connected with the magnetic steel part, the magnetic steel part comprises a permanent magnet which is rotatably arranged on one side of the coil part, and a swing arm which extends from the permanent magnet back to the end face of the coil part, the pushing plate comprises a pushing plate main body, a slot is arranged on one end of the pushing plate main body facing towards the swing arm, a clamping groove is arranged on one end of the pushing plate main body facing towards the electric connection assembly, the electric connection assembly comprises a static assembly which is clamped in the opening groove, the movable assembly comprises a movable reed and a movable contact arranged on the end part of the movable reed, the movable contact is arranged on the movable reed and corresponds to the movable contact, the end part of the movable reed is provided with a hook plate, the distance from the rotating position of the permanent magnet to the pushing plate is smaller than the length of the swing arm, when the driving assembly and the electric connection assembly are connected together by the pushing plate, the free end of the swing arm is accommodated in the slot, the movable reed is accommodated in the clamping groove, the extending direction of the hook plate is mutually perpendicular to the extending direction of the movable reed, and the hook plate is abutted on the pushing plate, limiting the position between the movable reed and the pushing plate.

Further, the coil part includes a bobbin, a conductive coil wound around the bobbin, and a plurality of connection terminals provided on one side end of the bobbin.

Further, a limit structure is vertically arranged at one side end part of the coil framework, which faces the electric connection assembly.

Further, the magnetic steel part comprises a permanent magnet rotatably arranged in the limiting structure and a swing arm extending from the end face of the permanent magnet, which is opposite to the coil part.

Further, a notch is formed in one corner of the pushing plate, which is close to the limiting structure.

Further, the outer contour of the clamping groove is L-shaped, and the clamping groove is led to the bottom wall of the pushing plate main body.

Compared with the prior art, the magnetic latching relay with the novel pushing plate is characterized in that the slot and the clamping groove are formed in the pushing plate, the free end of the swing arm in the magnetic steel part is contained in the slot, the movable reed in the movable assembly is contained in the clamping groove and is connected with the driving assembly, and the distance from the rotating position of the permanent magnet to the pushing plate is smaller than the length of the swing arm, so that the swing arm is always contained in the slot in the process of driving the swing arm to rotate by the permanent magnet. In addition, the extending direction of the hook plate is mutually perpendicular to the extending direction of the movable reed, and the hook plate is abutted to the pushing plate, so that the position between the movable reed and the pushing plate is limited, the stability is further improved, and the falling-off in the using process is avoided.

Drawings

Fig. 1 is a schematic structural view of a magnetic latching relay with a novel push plate according to the present utility model.

Fig. 2 is an exploded view of the magnetic latching relay of fig. 1 with a novel pusher plate.

Fig. 3 is a schematic diagram of a pusher plate of the magnetic latching relay of fig. 1 with a novel pusher plate.

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 3 are schematic structural views of a magnetic latching relay with a novel push plate according to the present utility model. The magnetic latching relay with the novel push plate includes a housing 10, a driving assembly 20 disposed in the housing 10, and an electrical connection assembly 30 connected to the driving assembly 20. It is conceivable that the magnetic latching relay with the novel push plate also includes other functional structures, such as connection terminals, etc., which are known to those skilled in the art and will not be described in detail herein.

The housing 10 includes a hollow base 11, and a cover plate 12 covering the opening of the base 11. A plurality of partition plates 111 and a plurality of open grooves 112 are provided in the base 11. The spacer 111 is used to secure the drive assembly 20 and the electrical connection assembly 30. The opening 112 is used for connecting the electrical connection assembly 30 to an external device.

The driving assembly 20 includes a coil portion 21, a magnetic steel portion 22 provided on a side of the coil portion 21 facing the electrical connection assembly 30, and a push plate 23 connected to the magnetic steel portion 222.

The coil part 21 includes a bobbin 211, a conductive coil 212 wound around the bobbin 211, and a plurality of connection terminals 213 provided at one side end of the bobbin 211. The coil frame 211 is vertically provided with a limit structure 214 toward one side end of the electrical connection assembly 30. The coil part 21 is connected with an external current through the connecting terminal 213, so that the lead coil 212 is electrified, thereby generating a magnetic field on the coil part 21 and generating magnetic attraction on the magnetic steel part 22.

The magnetic steel part 22 includes a permanent magnet 221 rotatably disposed in the limiting structure 214, and a swing arm 222 extending from the end surface of the permanent magnet 221 facing away from the coil part 21. The permanent magnet 221 is a magnetic steel with positive and negative poles, so that the permanent magnet 221 interacts with the positive and negative magnetic fields of the coil part 21 to achieve the purpose of swinging. The swing arm 222 is used for connecting with the push plate 23. And the distance from the rotation position of the permanent magnet 221 to the pushing plate 23 is smaller than the length of the swing arm 22, so as to prevent the swing arm 22 from falling off.

Referring to fig. 3, the pushing plate 23 has a rectangular outer shape. The pushing plate 23 includes a pushing plate body 231, a slot 232 disposed at one end of the pushing plate body 231 facing the swing arm, and a clamping slot 233 disposed at one end of the pushing plate body 231 facing the electrical connection assembly 30, where a notch 234 is disposed at a corner of the pushing plate 23 near the limiting structure 214, so as to avoid collision with the limiting structure 214 during use. The pushing plate 23 is located at the notch 234 and provided with a slot 232, and the slot 232 is used for inserting the swing arm 222, and the pushing plate 23 is driven to move by the rotation of the permanent magnet 221 and the swing arm 222. The other end of the push plate 23 is provided with a clamping groove 233, the outer contour of the clamping groove 233 is L-shaped, the clamping groove 233 is led to the bottom wall of the main body of the push plate 23, and the clamping groove 233 is clamped with the electrical connection assembly 30, so as to disconnect or connect the current. The opening of the clamping groove 233 is provided with a retaining plate 235 to prevent the electrical connection assembly 30 from falling off.

The electrical connection assembly 30 includes a stationary assembly 31 that is engaged in the opening slot 112, and a movable assembly 32 that is engaged with the engagement slot 233.

The stationary assembly 31 includes a stationary spring piece 311 inserted in the opening groove 112, and a stationary contact 312 provided on an end of the stationary spring piece 311.

The movable assembly 32 includes a movable contact 321, and a movable contact 322 disposed on the movable contact 321 and corresponding to the stationary contact 312.

The movable spring 321 has a hook plate 323 at its end, and the movable spring 321 is engaged with the engaging groove 233 of the pushing plate 23 and abuts against the end surface of the engaging groove 233 through the hook plate 323. Thereby controlling the movable contact 322 to collide with or break from the stationary contact 312 by the push plate 23.

When the pushing plate 23 connects the driving assembly 20 and the electrical connection assembly 30 together, the free end of the swing arm 222 is received in the slot 232, the movable spring 321 is received in the clamping groove 233, the extending direction of the hook plate 323 is perpendicular to the extending direction of the movable spring 321, and the hook plate 323 abuts against the pushing plate 23, so that the position between the movable spring 321 and the pushing plate 23 is limited.

Compared with the prior art, the magnetic latching relay with the novel pushing plate has the advantages that the slot 232 and the clamping groove 233 are formed in the pushing plate 23, the free end of the swing arm 222 in the magnetic steel part 22 is contained in the slot 232, the movable reed in the movable assembly 32 is contained in the clamping groove 233 and is connected with the driving assembly 20, and the distance from the rotating position of the permanent magnet 221 to the pushing plate 23 is smaller than the length of the swing arm 222, so that the swing arm 222 is always contained in the slot 232 in the process of driving the swing arm 222 to rotate by the permanent magnet 221. In addition, the extending direction of the hook plate 323 is perpendicular to the extending direction of the movable spring 321, and the hook plate 323 abuts against the pushing plate 23, so that the position between the movable spring 321 and the pushing plate 23 is limited, and the stability is further improved, so that the falling-off is avoided in the use process.

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 magnetic latching relay with novel pusher plate, characterized in that: the magnetic latching relay with the novel pushing plate comprises a shell, a driving component arranged in the shell and an electric connection component connected with the driving component; the shell comprises a hollow base, a cover plate and a plurality of opening grooves, wherein the cover plate is covered on an opening of the base, a plurality of partition plates and a plurality of opening grooves are arranged in the base, the driving assembly comprises a coil part, a magnetic steel part and a pushing plate, the magnetic steel part is arranged on one side of the coil part facing towards the electric connection assembly, the pushing plate is connected with the magnetic steel part, the magnetic steel part comprises a permanent magnet which is rotatably arranged on one side of the coil part, and a swing arm which extends from the permanent magnet back to the end face of the coil part, the pushing plate comprises a pushing plate main body, a slot is arranged on one end of the pushing plate main body facing towards the swing arm, a clamping groove is arranged on one end of the pushing plate main body facing towards the electric connection assembly, the electric connection assembly comprises a static assembly which is clamped in the opening groove, the movable assembly comprises a movable reed and a movable contact arranged on the end part of the movable reed, the movable contact is arranged on the movable reed and corresponds to the movable contact, the end part of the movable reed is provided with a hook plate, the distance from the rotating position of the permanent magnet to the pushing plate is smaller than the length of the swing arm, when the driving assembly and the electric connection assembly are connected together by the pushing plate, the free end of the swing arm is accommodated in the slot, the movable reed is accommodated in the clamping groove, the extending direction of the hook plate is mutually perpendicular to the extending direction of the movable reed, and the hook plate is abutted on the pushing plate, limiting the position between the movable reed and the pushing plate.

2. The magnetic latching relay with novel pusher plate of claim 1, wherein: the coil part comprises a coil framework, a conductive coil wound on the coil framework and a plurality of connecting terminals arranged on one side end part of the coil framework.

3. The magnetic latching relay with novel pusher plate of claim 2, wherein: and a limiting structure is vertically arranged at one side end part of the coil framework, which faces the electric connection assembly.

4. A magnetic latching relay with a novel pusher plate as claimed in claim 3, wherein: the magnetic steel part comprises a permanent magnet rotationally arranged in the limiting structure and a swing arm extending out from the end face of the permanent magnet, which is opposite to the coil part.

5. The magnetic latching relay with novel pusher plate of claim 4, wherein: one corner of the pushing plate, which is close to the limiting structure, is provided with a notch.

6. The magnetic latching relay with novel pusher plate of claim 1, wherein: the outer contour of the clamping groove is L-shaped, and the clamping groove is led to the bottom wall of the pushing plate main body.