CN102540063A

CN102540063A - Testing device for alternating-current relays and testing method thereof

Info

Publication number: CN102540063A
Application number: CN2010105822748A
Authority: CN
Inventors: 尤冬生
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2012-07-04

Abstract

The invention discloses a testing device for alternating-current relays and a testing method thereof. The testing device consists of a power switch, an ampere meter, a voltmeter, a transformer, a voltage regulator, the alternating-current relays, a high-power resistor and output indicator lamps. The testing device provides a function testing platform for detecting the alternating-current relays and the testing method. The mechanism of the testing device is that the working state of the alternating-current relays in a whole circuit is simulated, high-power load is adopted to test the bearing capability and the dynamic working performance of the alternating-current relays under the conduction state, electricity is obtained by utilizing a relay KA coil, and the state of two groups of normally closed contacts changes so as to achieve state convention. If the state convention is not achieved, or the indicator lamp are turned on or turned off simultaneously or are inoperative completely and other situations, the alternating-current relays are defective products and unqualified products. Therefore, the unqualified products are selected out. The circuit can test ten alternating-current relays in one time.

Description

A kind of AC relay proving installation and method of testing thereof

Technical field

The present invention relates to a kind of air conditioner electronic devices and components proving installation and method of testing thereof.Belong to the air conditioning appliance field.

Background technology

Usually complete machine factory test AC relay difficulty is bigger, generally is to adopt the visualize outward appearance, or with the static sampling observation of avometer internal resistance; Length consuming time, accurate rate variance, checkability is low; And inspection is difficult to find hidden danger of quality owing to can not switch on, and stays problems for the subsequent production line.Thereby influence complete machine electric equipment products quality, need improve.

Summary of the invention

The technical scheme that the present invention adopts is as shown in Figure 1: this proving installation circuit consists of the following components: power switch KA1, KA2, fuse F U1, FU2, transformer, power light, pressure regulator BT1, transformer BT2, reometer A1, voltage table V1, demonstration pilot lamp HL1, HL2, HL3, resistance R 1-R10, relay socket KA 1-KA2, vibroshock.The 220V alternating source is introduced from primary, and transformer secondary output output 220V, two groups of AC powers of 6.3V provide circuit and pilot lamp working power.Be used to indicate the pilot lamp D1-D4 of circuit state 6.3V pilot lamp and indication A.C. contactor duty, and current-limiting resistance R1-R4, wherein D1-D4 be 220, red, green, the coloured lamp of 200W.0-220V pressure regulator B1 one termination connects 220; One termination A.C. contactor line bag; Center pressure regulation point ground connection; The 0-250V A.C. voltmeter also connects therebetween, with the magnitude of voltage of accurate adjusting pressure regulator, connects high-power resistance respectively from the ac contactor contact output terminal and is connected in bulb D2, D3, the last parallelly connected ground connection of D4.

Circuit connecting mode is: from power switch KA1, connection power light; Connecting pressure regulator connects; Connect the elementary of transformer BT2, BT2 level of transformer connection reometer A1, through K switch A2 connection voltage table V1 and and receive the central point of transformer BT2, draw the end that resistance R 9, R10 are connected respectively to tested AC relay KA1, KA2 line bag from KA2; From the central point of transformer BT2, be drawn out to the other end of tested AC relay KA1, KA2 line bag.AC relay KA1 inner structure shows that it has two groups of normally opened contacts, two groups of normally closed contacts; One end of contact connects coloured pilot lamp, other end ground connection, and be connected between the 6.3V voltage of transformer secondary output.Two groups of normally closed contact pilot lamp are lighted, behind circuit working, and relay K A1 line Bao Dedian, two groups of normally opened contacts, two groups of normally closed contact states change, thereby the normally closed contact pilot lamp extinguishes, and the normally opened contact pilot lamp is lighted.Pressure regulator BT1 is used to adjust the alternating voltage of relay input end KA1 line bag, and pressure regulator BT1 power supply 220V voltage is flowed into the current value of relay line bag by voltage table V control relay line bag magnitude of voltage by reometer A1 monitoring.Said relay socket KR to be measured is the AC relay private jack, and model is 4098.This circuit once can be tested 10 AC relays.

3. according to the proving installation of the said a kind of AC relay of claim 1, it is characterized in that proving installation has following operation steps:

1). relay to be measured is inserted on the relay socket KR.

2) open KA1, power supply 220V voltage transformer, the HL1 pilot lamp is bright.Two groups of normally closed contact pilot lamp are lighted.

3) the adjustment end of adjusting pressure regulator BT1, the output voltage reading value that makes voltage table V are at 220V, and the reometer indicated value is in 200 milli A.

4) open KA2, relay coil to be measured gets electric, the relay contact action; Two groups of normally closed contact pilot lamp are lighted, behind circuit working, and relay K A line Bao Dedian; Two groups of normally closed contact states change, and two groups of normally opened contact H4, H5 are closed, and the normally opened contact pilot lamp is lighted; Thereby normally closed contact pilot lamp H2, H3 extinguish, and closes KA2, and then the normally closed contact pilot lamp is lighted.Stir KA2 so repeatedly, visible H2, H3, H4, H5 realize state exchange, if can not realize above conversion, or occur lighting simultaneously or extinguishing simultaneously, or situation such as do not work fully then are a unacceptable product for defect ware then.

The invention has the beneficial effects as follows: this AC relay test board cost of manufacture is low, easy and simple to handle, practicality, and accuracy rate is high, and low energy consumption is safe and reliable.Increased substantially work efficiency.Be applicable to air conditioning appliance assembly production relay checkout procedure, for AC relay provides the functional test condition.Can find the product quality problem and the hidden danger thereof that exist intuitively.Real is the indispensable inspection machine of factory.

Description of drawings

Fig. 1 is the electric theory diagram of the embodiment of the invention

Fig. 2 is the circuit diagram of the embodiment of the invention

Embodiment

Embodiment of the present invention is referring to Fig. 1: the proving installation circuit of AC relay consists of the following components: power switch KA1, KA2, fuse F U1, FU2, transformer, power light, pressure regulator BT1, transformer BT2, reometer A1, voltage table V1, show pilot lamp HL1, HL2, HL3, resistance R 1-R10, relay socket KA1-KA2, vibroshock.The 220V alternating source is introduced from primary, and transformer secondary output output 220V, two groups of AC powers of 6.3V provide circuit and pilot lamp working power.Be used to indicate the pilot lamp D1-D4 of circuit state 6.3V pilot lamp and indication A.C. contactor duty, and current-limiting resistance R1-R4, its resistance be 62-10W wherein D1-D4 be 220, red, green, the coloured lamp of 200W.0-220V pressure regulator B1 one termination connects 220; One termination A.C. contactor line bag; Center pressure regulation point ground connection; The 0-250V A.C. voltmeter also connects therebetween, with the magnitude of voltage of accurate adjusting pressure regulator, connects high-power resistance respectively from the ac contactor contact output terminal and is connected in bulb D2, D3, the last parallelly connected ground connection of D4.

1). relay to be measured is inserted on the relay socket KR.

Claims

1. the proving installation of an AC relay, this proving installation consists of the following components: power switch KA1, KA2, fuse F U1, FU2, transformer, power light, pressure regulator BT1, transformer BT2, reometer A1, voltage table V1, show that pilot lamp HL1, HL2, HL3, resistance R 1-R10, relay socket KA1-KA2, vibroshock form.

2. the proving installation of a kind of AC relay according to claim 1; It is characterized in that described board circuit connected mode is as shown in the figure: from power switch KA1, connection power light; Connecting pressure regulator connects; Connect the elementary of transformer BT2, BT2 level of transformer connection reometer A1, through K switch A2 connection voltage table V1 and and receive the central point of transformer BT2, draw the end that resistance R 9, R10 are connected respectively to tested AC relay KA1, KA2 line bag from KA2; Central point from transformer BT2; Be drawn out to the other end of tested AC relay KA1, KA2 line bag, show that according to AC relay K inner structure it has two groups of normally opened contacts, two groups of normally closed contacts; One end of contact connects coloured pilot lamp, other end ground connection, and be connected between the 6.3V voltage of transformer secondary output; Two groups of normally closed contact pilot lamp are lighted, behind circuit working, and relay K A line Bao Dedian; Two groups of normally opened contacts; Two groups of normally closed contact states change, thereby the normally closed contact pilot lamp extinguishes, and normally opened contact pilot lamp point is superfluous; Regulate the alternating voltage that pressure regulator BT1 can adjust relay input end KA1 line bag, pressure regulator BT1 power supply 220V voltage is by voltage table V monitoring line bag magnitude of voltage, by the current value of reometer A1 monitoring stream lambda line bag.Said relay socket KR to be measured is the AC relay private jack, and model is 4098 types; This circuit once can be tested 10 AC relays.

1). relay to be measured is inserted on the relay socket KR;

2) open KA1, power supply 220V voltage transformer, the HL1 pilot lamp is bright.Two groups of normally closed contact pilot lamp are lighted;

3) the adjustment end of adjusting pressure regulator BT1, the output voltage reading value that makes voltage table V are at 220V, and the reometer indicated value is in 50 milli A;

4) open KA2, relay coil to be measured gets electric, the relay contact action, and two groups of normally closed contact pilot lamp are lighted; Behind circuit working, relay K A line Bao Dedian, two groups of normally closed contact states change, and two groups of normally opened contact H4, H5 are closed; The normally opened contact pilot lamp is lighted, thereby normally closed contact pilot lamp H2, H3 extinguish, and closes KA2; Then the normally closed contact pilot lamp is lighted, and stirs KA2 so repeatedly, and visible H2, H3, H4, H5 realize state exchange; If can not realize above conversion, or occur lighting simultaneously or extinguishing simultaneously, or situation such as do not work fully then then is unacceptable product for defect ware.