CN205657020U

CN205657020U - Safe electromagnetic relay of small -size energy -conservation

Info

Publication number: CN205657020U
Application number: CN201620262098.2U
Authority: CN
Inventors: 高志华; 高云鹏; 杨绪宁; 刑玉华; 朱洪捷
Original assignee: Tianjin Jin Bin High Ferro Electrical Equipment Science And Technology Ltd
Current assignee: Tianjin Jin Bin High Ferro Electrical Equipment Science And Technology Ltd
Priority date: 2016-03-30
Filing date: 2016-03-30
Publication date: 2016-10-19
Anticipated expiration: 2026-03-30

Abstract

The utility model relates to a technical field is made to the relay, especially relates to a safe electromagnetic relay of small -size energy -conservation. Including iron core and main coil, shown main coil is around on shown iron core, and the outer coiling of shown main coil has a set of secondary coil, and it has the pilot lamp to establish ties on the shown secondary coil. Pilot lamp power supply is adopted and is exchanged the exchangeable voltage that produces, and two coils are kept apart each other, and coil itself has certain inhibitory action to the high frequency, so when relay coil's power supply voltage has the interference, relay coil itself has obstructed in the return circuit of here interference voltage entering pilot lamp the inhibitory action of high frequency to the return circuit of having protected the pilot lamp is not destroyed by pulse impulse voltage, reduces dangerous possibility to appear.

Description

Miniature energy-saving safety electromagnetic relay

Technical field

This utility model relates to relay and manufactures technical field, particularly relates to a kind of miniature energy-saving safety electromagnetic and continues Electrical equipment.

Background technology

At present, the most general relay recognizes whether work for convenience, can be in coil two ends parallel connection one Group indicator lamp system.When energized, display lamp luminescence represents coil electricity and works, on the contrary work the most useless. As it is shown in figure 1, this kind of indicator lamp system has potential safety hazard, at circuit by extraneous high-voltage electromagnetic pulse etc. During unfavorable factor interference, indicator lamp system is because transshipping, it may occur that the dangerous phenomenon such as detonation.Why can send out Raw this phenomenon, is because relay operationally electronic devices and components poor anti jamming capability, or to this display lamp The protective measure of system is unreliable.

Such as: 156TKLO AC220V/2C relay rated voltage AC220V, when being in alternating current negative half period During the phase, diode two ends backward voltage is about 220V*2^0.5 ≈ 311V.If extraneous high-voltage electromagnetic pulse is just Put on well alternating current negative half-cycle, then diode two ends backward voltage is that 311V adds electromagnetic pulse peak value, This magnitude of voltage has exceeded the reverse pressure voltage of diode, causes diode to damage.

Utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provides a kind of miniature energy-saving safety electricity Magnetic relay, prevents display lamp detonation.

This utility model for achieving the above object, by the following technical solutions:

A kind of miniature energy-saving safety electromagnetic relay, it is characterised in that: include iron core and main coil, shown Main coil is wound on shown iron core, is wound with one group of secondary coil outside shown main coil, and shown secondary coil is connected There is display lamp.

Preferably, shown secondary coil flat raft is close is wound on described main coil.

Preferably, the line footpath of described main coil is 0.035mm to 0.21mm, and the line footpath 0.03mm of secondary coil is extremely 0.035mm；Coiling number of turn scope is: main coil 600 to 24500, secondary coil 400 to 500.

The beneficial effects of the utility model are: relative to prior art, and display lamp is powered and used AC mutual induction to produce Raw voltage, two coils are isolation each other, and coil itself just has certain inhibitory action to high frequency, So when the supply voltage of relay coil has interference, the inhibitory action of high frequency is hindered by relay coil itself Hinder this interference voltage to enter in the loop of display lamp, thus protect the loop of display lamp not by pulse shock Voltage damages, reduces and dangerous possibility occurs；Owing to the voltage of new coil is less, it indicates that lamp system energy consumption Relatively low, system temperature rise is less, is effectively reduced the working life of loss prolongation system.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art；

Fig. 2 is structural representation of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings and preferred embodiment describe in detail detailed description of the invention of the present utility model.Such as Fig. 2 institute Showing, a kind of miniature energy-saving safety electromagnetic relay, including iron core and main coil, shown main coil is wound on institute Show on iron core, be wound with one group of secondary coil outside shown main coil, shown secondary coil is in series with display lamp.? Outside original actuating coil, one group of new coil of coiling, indicator lamp system and this new coil are connected, and is Leakage field must be reduced as far as possible, during coiling use flat raft close around mode.We are the most major and minor for these two groups of coils Coil.Due to undesirable mutual electromagnetic inductance principle, when main coil being imposed alternating voltage U1, an alternation electricity will be produced Stream I 1, this electric current produces alternating flux Φ in the core, because major and minor coil is on same iron core, So when magnetic flux Φ is through secondary coil, just producing induction electromotive force e2 (i.e. transformation voltage) at transformer secondary. In transformator, the size of induction electromotive force is that the frequency of the number of turn with coil, the size of magnetic flux and power supply is directly proportional. It is: E=4.44fN Φ

Wherein E: represent induction electromotive force, unit volt, be called for short volt (V)；

F: represent supply frequency, unit hertz (Hz)；

N: represent coil turn (circle)；

Φ: represent magnetic flux, unit weber (Wb)；

Owing to magnetic flux Φ closes, so major and minor induction electromotive force is respectively as follows: through major and minor coil

E₁=4.44fN₁Φ

E₂=4.44fN₂Φ

ThereforeThe electromotive force of secondary coil is only affected by the electromotive force of main coil and the turn ratio of two groups of coils.

As long as so the number of turn of secondary coil coiling is sufficiently small than main coil, when main coil is energized, secondary coil Meeting one voltage the least of instantaneous generation, it is ensured that indicating lamps safety works.

Such as: after 156TKLO AC220V/2C relay construction adjusts, main and sub-coil all uses 0.035mm Enamel-covered wire, main coil coiling 24500 circle resistance is 15k Ω, secondary coil around referring to that 500 circle resistance are 0.306k Ω, Secondary coil voltage is then the main coil running voltage of 0.2 times, it is ensured that indicator lamp system trouble free service.

Relative to prior art, display lamp is powered and is used the voltage of AC mutual induction generation, and two coils are each other Isolate, and coil itself just has certain inhibitory action to high frequency, so when the power supply electricity of relay coil When being pressed with interference, relay coil itself hinders this interference voltage and enters display lamp the inhibitory action of high frequency Loop in, thus protect the loop of display lamp not by pulse shock voltage damages, reduce occur dangerous May；Owing to the voltage of new coil is less, it indicates that lamp system energy consumption is relatively low, system temperature rise is less, can have Effect reduces the working life of loss prolongation system.

The above is only preferred implementation of the present utility model, it is noted that general for the art For logical technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvement and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims

1. a miniature energy-saving safety electromagnetic relay, it is characterised in that: include iron core and main coil, institute Show that main coil is wound on shown iron core, outside shown main coil, be wound with one group of secondary coil, shown secondary coil is gone here and there It is associated with display lamp.

Miniature energy-saving safety electromagnetic relay the most according to claim 1, it is characterised in that: shown pair Coil flat raft is close to be wound on described main coil.

Miniature energy-saving safety electromagnetic relay the most according to claim 1, it is characterised in that: described The line footpath of main coil is 0.035mm to 0.21mm, the line footpath 0.03mm to 0.035mm of secondary coil；Coiling circle Number scope is: main coil 600 to 24500, secondary coil 400 to 500.