A three-phase magnetic latching relay with symmetrical distribution of input and output

A magnetic latching relay, symmetrical distribution technology, applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve problems such as troublesome, unfavorable user design solutions, increased manufacturing costs, etc., and achieve the effect of avoiding short-circuit between phases

CN111710563BActive Publication Date: 2022-05-06广西睿奕科技开发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-05-06

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Abstract

The invention discloses a three-phase magnetic latching relay whose input and output are symmetrically distributed. Its structure includes three parts, namely a housing part, a control circuit part and a magnetic circuit system part. The housing part consists of a casing and an upper cover. , lower cover; the control circuit part includes L1 control group circuit, L2 control group circuit, L3 control group circuit, mutual inductor, each group of control circuit consists of moving contact, moving spring seat, moving reed, static contact , Static spring seat; the magnetic circuit system part includes a coil frame, a bracket, a push piece, a magnetic steel component, an enameled wire, an iron core, and a yoke. It is inconvenient to connect the traditional spaced three-phase electric meter connection terminal if the new electric meter design scheme is adopted; but the present invention adopts the symmetrical three-phase electric meter connection terminal, and adopts the new electric meter to match the symmetrical three-phase magnetic latching relay of the present invention Reasonable, convenient design, saving materials and greatly reducing costs.
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Description

Technical field

[0001] The invention belongs to the technical field of relay equipment, and in particular relates to a three-phase magnetic latching relay whose input and output are symmetrically distributed.

Background technique

[0002] With the continuous development of the national smart grid, prepaid meters are more and more widely used in the power grid. The use of three-phase meters is extremely extensive. The models and specifications of three-phase meters are different. They can be classified into two types according to the wiring. One is The traditional spaced wiring three-phase ammeter, the other is the new symmetrical wiring three-phase ammeter, the traditional spaced wiring three-phase ammeter connection port is that the L1 phase is distributed at the port input port output, and the L2 phase is distributed at the port input port Port output, the L3 phase is distributed in the port input port output, and the neutral line is distributed in the port and port. T...

Examples

Embodiment Construction

[0037] The present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0038] like figure 1 , 2 As shown, a three-phase magnetic latching relay with symmetrical distribution of input and output, its structure includes three parts, namely the housing part, the control circuit part, and the magnetic circuit system part; the housing part consists of a casing 11, an upper cover 12, The lower cover is composed of 12. The outer shell is arranged between the upper cover and the lower cover. The slots and cavity for positioning each component are designed inside the outer shell; this product is a three-phase magnetic latching relay, and the control circuit part includes L1 control Group circuit, L2 control group circuit, L3 control group circuit, t...