CN-224232599-U - High-performance double-path magnetic latching relay with symmetrically distributed input and output

CN224232599UCN 224232599 UCN224232599 UCN 224232599UCN-224232599-U

Abstract

The utility model discloses a high-performance double-path magnetic latching relay with symmetrically distributed input and output, which structurally comprises three parts, namely a shell part, a control group loop part and a magnetic circuit system part, wherein the shell part consists of a shell, an upper cover and a lower cover, the control group loop part comprises an L1 control group loop and an L2 control group loop, each group of control group loops consists of a movable contact, a movable reed seat, a fixed contact and a fixed reed seat, the magnetic circuit system part comprises a coil rack, an enameled wire, an iron core, a yoke iron, a bracket, a push piece and a magnetic steel assembly, and the problem of short-circuit impact resistance difference of the symmetrically distributed input and output magnetic latching relay can be solved.

Inventors

LI JIANXIONG
LI YERONG
ZHANG LIANG
ZHU LI
Rong Haojian
CHEN YANTONG

Assignees

广西睿奕科技开发有限公司

Dates

Publication Date: 20260512
Application Date: 20250225

Claims (10)

1. The high-performance double-path magnetic latching relay with symmetrically distributed input and output comprises three parts, namely a shell part, a control group loop part and a magnetic circuit system part, and is characterized in that the shell part consists of a shell, an upper cover and a lower cover, and the shell is arranged between the upper cover and the lower cover; The control group loop part comprises an L1 control group loop and an L2 control group loop, each group of control group loop consists of a movable contact, a movable spring seat, a stationary contact and a stationary spring seat, the stationary contact is arranged on the stationary spring seat, the movable contact is arranged on the movable spring, and the movable spring is arranged on the movable spring seat in a combined way; the magnetic circuit part comprises a coil frame, enamelled wires, iron cores, yokes, a support, push plates and magnetic steel components, wherein the yokes are arranged on two sides of the coil, the middle of each yoke penetrates into the iron cores, the magnetic steel components are arranged between the two yokes, the support is arranged on the magnetic steel components, the enamelled wires are wound on the coil frame, the push plates are provided with clamping grooves, and the push plates are respectively clamped into the magnetic steel components and the movable reeds in each control group of the control group loop and are connected with each other.
2. The high-performance two-way magnetic latching relay with symmetrical input and output distribution according to claim 1, wherein the housing is internally provided with slot clamping slots and cavities for positioning parts.
3. The high-performance two-way magnetic latching relay with symmetrical input and output distribution according to claim 1 is characterized in that the static spring seat of the L1 control group and the dynamic spring seat of the L1 control group form an L1 control group, the L1 control group is arranged on the right side of the magnetic circuit part, the static spring seat of the L2 control group and the dynamic spring seat of the L2 control group form an L2 control group, and the static spring seat of the L2 control group spans to the left side of the dynamic spring seat of the L2 control group from the lower parts of the static contact and the dynamic contact of the L1 control group to form a control group loop group.
4. A high performance two-way magnetic latching relay with symmetrical input and output according to claim 3 wherein the number of leaves per control group is 3.
5. A high-performance two-way magnetic latching relay with symmetrical input and output according to claim 1, wherein the coil frame of the magnetic circuit part is arranged vertically and in parallel with the spring seat.
6. The high-performance two-way magnetic latching relay with symmetrically distributed input and output according to claim 5, wherein 2 movable reeds are made of red copper sheets, the middle right part is designed into a U-shaped form, the rest movable reeds are made of beryllium copper, and the head part is designed with bending.
7. The high-performance double-path magnetic latching relay with symmetrically distributed input and output according to claim 1 is characterized in that the magnetic steel component comprises 2 armature plates, permanent magnet blocks and a plastic body, wherein the 2 armature plates and the permanent magnet blocks are arranged in a positioning jig of an injection mold, the injection molding procedure is started, and the plastic body wraps the 2 armature plates and the permanent magnet blocks to form a whole after full injection molding.
8. The high-performance two-way magnetic latching relay with symmetrically distributed input and output according to claim 1, wherein the 2 armature plates are made of DT4E material, the permanent magnet block is made of neodymium iron boron material, and the plastic body is made of wear-resistant PBT material.
9. The high-performance double-path magnetic latching relay with symmetrically distributed input and output according to claim 1, wherein the coil assembly consists of a coil frame, an enameled wire, an iron core and a yoke iron, the iron core and the yoke iron are made of DT4E materials, the inner core of the enameled wire is made of pure copper wires, the outer part of the enameled wire is coated with a layer of insulating paint, the coil frame is made of wear-resistant PBT materials, and the iron core and the yoke iron are integrally fixed by a riveting process.
10. A high performance two-way magnetic latching relay with symmetrical input and output according to claim 9, wherein 2 yokes are provided.

Description

High-performance double-path magnetic latching relay with symmetrically distributed input and output Technical Field The utility model belongs to the technical field of relay equipment, and particularly relates to a high-performance double-path magnetic latching relay with symmetrically distributed input and output. Background With the wide application of a series of advanced technologies and the continuous perfection of infrastructure, smart grids have already penetrated into aspects of people's life, and many changes are brought to the electricity utilization field. The most obvious is that the safety and the reliability of the ammeter in the use process are continuously improved, so that the stability of electricity consumption of residents is guaranteed, and a solid rear shield is provided for a plurality of electricity consumption scenes such as industrial production. The key electricity metering device of the intelligent ammeter is internally provided with a critical element, namely a magnetic latching relay, which is a key ring for realizing accurate and efficient switching of circuits and has the advantage of directly regarding whether the whole intelligent ammeter can stably operate. Therefore, the magnetic latching relay must have extremely hard quality, especially good short-circuit current resistance, so as to cope with sudden conditions possibly occurring at any time in a complicated and changeable electricity utilization environment, such as instant current overload, short-circuit faults and the like, thereby practically guaranteeing the safety and smoothness of the electric power system. The design of the current general symmetrical magnetic latching relay product aims at meeting the symmetrical requirements on structural layout initially so as to realize production standardization, assembly convenience and maintenance simplicity. The specific structure is that the static spring seat of the L1 control group starts from the rear part of the relay, bypasses the L1 control group and the magnetic force system along a specific path, and accurately falls on the left side of the dynamic spring seat of the L2 control group. From the perspective of appearance and assembly process, the layout truly achieves the expected symmetrical structure in the early stage of design, and is beneficial to flow control in large-scale production operation. However, after the electromagnetic principle and the operation mechanism inside the product are deeply analyzed, it is found that, as the L2 control group of the static spring seat surrounds the whole magnetic circuit system, a magnetic field is generated around the energized conductor according to the basic principle of electromagnetism, and a plurality of magnetic fields are mutually overlapped and interfered in a limited space by the layout. The complex and turbulent magnetic field distribution greatly damages the original magnetic flux path stability of the magnetic circuit system, so that the magnetic permeability fluctuates and the magnetic resistance is obviously increased. When short-circuit current impact is encountered, electromagnetic driving force in the relay cannot respond according to an ideal state, armature action delay, poor contact and other problems frequently occur, so that the short-circuit impact resistance is seriously damaged, strict short-circuit impact test standards such as UC2 and UC3 are difficult to meet, and a serious challenge is brought to the intelligent ammeter in the aspect of high-reliability operation. Disclosure of utility model The utility model provides a high-performance double-path magnetic latching relay with symmetrically distributed input and output, which solves the problem of poor short circuit impact of the magnetic latching relay and can effectively reduce the volume of the relay. In order to achieve the technical purpose, the design scheme of the utility model is as follows: The high-performance double-path magnetic latching relay with symmetrically distributed input and output comprises three parts, namely a shell part, a control group loop part and a magnetic circuit system part, wherein the shell part consists of a shell, an upper cover and a lower cover, and the shell is arranged between the upper cover and the lower cover; the control group loop part comprises an L1 control group loop and an L2 control group loop, wherein each group of control group loop consists of a movable contact, a movable spring seat, a movable spring piece, a static spring point and a static spring seat; The magnetic circuit part comprises a coil rack, a bracket, a pushing piece, a magnetic steel component, enamelled wires, iron cores and yokes, wherein the yokes are arranged on two sides of the coil rack, the middle of each yoke penetrates into the iron cores, the magnetic steel component is arranged between the two yokes, the bracket is arranged on the magnetic steel component, the enamelled wires are wound on the coil rack, the pushi