CN102478611A - Luminous bar testing device and testing method thereof - Google Patents
Luminous bar testing device and testing method thereof Download PDFInfo
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- CN102478611A CN102478611A CN2010105628269A CN201010562826A CN102478611A CN 102478611 A CN102478611 A CN 102478611A CN 2010105628269 A CN2010105628269 A CN 2010105628269A CN 201010562826 A CN201010562826 A CN 201010562826A CN 102478611 A CN102478611 A CN 102478611A
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 230000000737 periodic effect Effects 0.000 claims abstract description 13
- 230000032683 aging Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 230000002950 deficient Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
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- 239000003990 capacitor Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
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- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000011990 functional testing Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
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Abstract
The invention relates to a luminous bar testing device and a testing method thereof. The testing device mainly consists of a power circuit, an oscillator, an amplifier, a control switch, a trigger, relays, a resetting circuit, a tested part/display and the like. The device simulates the work status of the tested part in an overall unit circuit and tests the dynamic work performance of the tested part in a conductive status. An oscillating circuit generates periodic pulse electric signals, and provides the electric pulse signals which are transmitted to a triggering circuit. Electric signals outputted by a pulse generator are amplified via a driver, periodic pulse signals are generated, and the corresponding relays are controlled. Make and break of a luminous bar are controlled by the aid of a switch effect of contacts of the relays. When switch statuses of the contacts of the relays of the circuit are changed, the work status that corresponding green luminous tubes and corresponding red luminous tubes are alternately luminous totally can be visually seen. If the corresponding green luminous tubes and the corresponding red luminous tubes are abnormal and not luminous or have color shading, the luminous bar is an unaccepted product.
Description
Technical Field
The invention relates to an electronic component detection device and a test method thereof in the field of air-conditioning appliances, in particular to a light-emitting bank function test device and a test method thereof.
Background
The whole machine production plant tests the luminous row, generally adopt and look at the visual inspection appearance, or use the static random inspection internal resistance of three-purpose meter, it is long consuming time, the rate of accuracy is poor, the detection efficiency is low, and because can't be electrified to check and hardly find the quality hidden danger, bring very big vexation to production line debugging, inspection. Thereby greatly influencing the product quality of the whole machine and needing to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a function testing device for testing a light-emitting bank and a testing method thereof. The device is used for simulating the working state of the device in the whole circuit, and the quality requirement of the whole circuit on the device is fundamentally met.
The testing device consists of the following parts: the device comprises a frame, a panel, a power switch, a socket key switch, an indicator light, a special socket for a luminous bar, a voltmeter, an ammeter and a fuse, a shock absorber and a circuit board which are arranged in the frame, wherein the circuit on the circuit board comprises a power circuit, a pulse generator circuit, a pulse driver circuit, a reset circuit, a relay and a tested piece/display.
The power supply circuit: the power supply circuit is powered by 220V power supply voltage, and is controlled by a power switch SA1, and the circuit consists of a fuse F1, a transformer T1, a bridge rectifier VC1, VC2 capacitor filtering and an A1-LM338 voltage stabilizer to provide the power supply circuit. Two groups of 9V 5V DC stabilized voltage power supplies are provided to supply power voltages to the pulse generator circuit, the pulse driver circuit, the reset circuit, the relay and the tested component/display group.
The voltage stabilizing circuit of the power supply circuit comprises: one circuit is composed of A1-LM338 and voltage-stabilizing integrated block as voltage stabilizer, and the voltage-stabilizing circuit is composed of LM338 voltage-stabilizing integrated block, capacitors C1, C2, resistors R11 and R12. And a 9V direct current stabilized power supply is provided for supplying power to the pulse generator circuit, the pulse driver circuit, the reset circuit and the relay power supply voltage. The other route LM332 voltage-stabilizing integrated block is used as a voltage stabilizer. And the voltage stabilizing circuit consists of C3, C4, R13 and R14. And providing a 6V direct current stabilized power supply to supply power voltage to the tested piece/display.
The working principle is as follows: the working state of the device in the whole circuit is simulated, and the bearing capacity and the dynamic working performance of the device in a conductive state are tested. The oscillating circuit generates periodic pulse electrical signals, provides corresponding electrical pulse signals for the test bench, and transmits the electrical pulse signals to the trigger circuit. Under the action of the DC power supply voltage, an electric signal output by the pulse generator is amplified by the driver to generate a periodic pulse signal, and the periodic pulse signal pushes the V1-V10 amplifier to enable the level of the trigger to be inverted from a high state to a low state to a high state, so that the state inversion is realized, and a corresponding relay is controlled. The on-off of the light emitting bank is further controlled by the switching action of the relay contact.
When the circuit pulses, the corresponding light emitting bank emits light. The alternate lighting of the green luminotron and the red luminotron is realized. The red indicator light of the luminous row is fully on. Or the green indicator light of the luminous row is fully on. The direct current power supply signal is controlled through a corresponding relay, and the on and off of the light emitting bank are controlled through the switching action of the relay contact. Therefore, the working state of the luminous row can be visually seen, and if the abnormal condition is found, the luminous row can not be normally turned over, can not be changed from red to green or from green to red or has obvious color difference and is not bright, the luminous row is a defective product.
The invention also provides a function test method of the light-emitting bank, which comprises the following steps:
1. and firmly installing the light-emitting bar to be tested on the aging board, fixing the light-emitting bar on the test board, and screwing down the screw. A special key is used for turning on a power switch, and an alternating current indicator lamp is on a test board;
2. selecting an automatic switch position or a manual switch position, wherein an automatic switch position function is selected during electrical aging, and a manual switch position function is selected during testing;
3. and (4) functional test: pressing the manual key turns the corresponding panel indicator light on the light emitting row from red to green once, pressing again, and changing the state once again; whether the colors of the indicating lamps on the luminous row are uniform or not, whether the colors are not bright or not or insufficient in brightness when the state of the indicating lamps is changed. Thereby detecting defective products;
4. when the automatic switch function is selected, the corresponding panel indicator lamps on the light emitting row automatically turn over once every 3 seconds; if more than one indicator lamps can not be normally turned over, and can not be turned over from red to green or from green to red or have obvious color difference and can not be turned over, the indicator lamps are inferior.
The invention has the beneficial effects that: the luminous row test board is low in manufacturing cost, simple and convenient to operate, high in accuracy, safe and reliable. The bearing capacity is strong, and the quality problem and the hidden danger thereof existing in the luminous row device can be found visually through the indicating lamp on the test board. The aging and testing function testing method is applied to the production testing process of the air conditioner electrical appliance assembly and provides an aging and testing function testing method for the light-emitting bank testing. And can continuously work for more than 8 hours. The working efficiency is greatly improved.
Drawings
FIG. 1 is an electrical schematic block diagram of an embodiment of the present invention
FIG. 2 and FIG. 3 are circuit diagrams of the embodiment of the present invention
Detailed Description
Referring to fig. 2 and 3, the light emitting bank testing apparatus according to the embodiment of the present invention is composed of the following components: the device comprises a frame, a panel, a power switch, a socket key switch, an indicator light, a special socket for a luminous bar, a voltmeter, an ammeter and a fuse, a shock absorber and a circuit board which are arranged in the frame, wherein the circuit on the circuit board comprises a power circuit, a pulse generator circuit, a pulse driver circuit, a reset circuit, a relay and a tested piece/display. Wherein,
power supply circuit composition see fig. 2: the power supply is supplied by 220V voltage, a power circuit is controlled by a power switch SA1, and the circuit consists of fuses F1 and F2, a transformer T1, a bridge rectifier VC1, VC2 capacitor filtering, an A1-LM338 voltage stabilizer and an A2-LM332 voltage stabilizer. The circuit adopts LM338 and LM332 voltage-stabilizing integrated blocks as voltage regulators, and the LM338 voltage-stabilizing integrated blocks, capacitors C1 and C2, and resistors R11 and R12 provide a voltage-stabilizing circuit. And a 9V direct current stabilized power supply is provided for supplying power to the pulse generator circuit, the pulse driver circuit, the reset circuit and the relay power supply voltage. The LM332 voltage-stabilizing integrated block is used as a voltage stabilizer. And the voltage stabilizing circuit consists of C3, C4, R13 and R14. And providing a 6V direct current stabilized power supply to supply power voltage to the tested piece/display.
Pulse generator in circuit fig. 3 consists of the following components: the circuit comprises a G6-555 oscillator, an R16 resistor, an R17 resistor, a C35-4 capacitor, a C36 capacitor and R18. The connection mode is as follows: the periodic pulse signal is generated from the pulse generator, and the electric signal output from the foot 3 of the 555 oscillator passes through the resistors R18 to V11, R20 to V12. The control electric signal is output through secondary amplification. The electric signals output from pins 8 and 4 of the G6-555 oscillator are transmitted to control switches SB1 and SB2 to be used as reference signals of a trigger circuit. The oscillator generates periodic pulse electric signals, and the periodic pulse electric signals are transmitted to the corresponding electric pulse signals of the testing device and are transmitted to the trigger circuit.
The pulse circuit of the pulse driver consists of RK triggers G1-G5, G1-G5 are trigger integrated circuits, and the connection mode is as follows: r1, R3, R5, R7 and R9 are connected with triodes T1, T3, T5, T7 and T9, corresponding relay contacts of the triodes control red light-emitting tubes, R2, R4, R6, R8 and R10 in the circuit are connected with triodes T2, T4, T6, T8 and T10, corresponding relay contacts of the triodes control green light-emitting tubes. The corresponding light emitting bank emits light. After the electric signal is transmitted to the trigger integrated circuit, when the triggering condition is met, the RS trigger G1-G5 trigger circuit generates a periodic electric signal to realize circuit triggering and overturning, so that the states of the triodes T1-T10 connected afterwards are changed, the level of the trigger is changed from high to low, and the output state is overturned from low to high.
The reset circuit has 'automatic' and 'manual' switch positions. When the automatic switch is in function, the corresponding panel indicator light on the light emitting row automatically turns over once every 3 seconds. The alternate lighting of the green luminotron and the red luminotron is realized.
The specific testing steps are as follows:
1. and firmly installing the light-emitting bar to be tested on the aging board, fixing the light-emitting bar on the test board, and screwing down the screw. The power switch is turned on by a special key, and the alternating current indicator lamp is on the test board.
2. The "automatic" or "manual" switch position is selected, typically the "automatic" switch position function is selected during electrical aging, and the "manual" switch position function is selected during testing.
3. And (4) functional test: pressing the corresponding panel indicator light on the manual key light-emitting row turns over from red to green once, and pressing again changes the state once again. When the state of the lamp is changed, the color of the indicating lamp on the luminous row is uniform or not, and the lamp is not bright or not enough. Defective products are detected based on this.
4. When the automatic switch function is selected, the corresponding panel indicator lamps on the light emitting row automatically turn over once every 3 seconds. From "red to green" or from "green to red". If the normal overturn of each indicator light can be realized, the indicator light is a good product under the conditions of uniform color, no non-bright color or insufficient bright color, and if more than one indicator light can not be overturned normally, or can not change from red to green or from green to red or has obvious color difference, the indicator light is a defective product.
Claims (5)
1. A light-emitting bank testing device is characterized by comprising the following parts: the device comprises a frame, a panel, a power switch, a socket, a key switch, an indicator light, a special socket for a luminous bar, a voltmeter, an ammeter and a fuse, a shock absorber and a circuit board which are arranged in the frame, wherein the circuit on the circuit board comprises a power circuit, a pulse generator circuit, a pulse driver circuit, a reset circuit, a relay and a tested piece/display.
2. A light bank testing apparatus according to claim 1, wherein said pulse generator circuit comprises: g6-555 oscillator, R16 resistance, R17 resistance, C35-4 electric capacity, C36 electric capacity, R18, its connected mode is: generating periodic pulse signals from a pulse generator, and enabling an electric signal output by a pin 3 of a 555 oscillator to pass through a resistor R18 to be V11 and to pass through resistors R20 to V12; the control electric signals are output through two-stage amplification and are transmitted to the trigger through a control switch SA3, and the electric signals output from pins 8 and 4 of the G6-555 oscillator are transmitted to control switches SB1 and SB2 to be used as reference signals of a trigger circuit; the oscillator generates periodic pulse electric signals, and the periodic pulse electric signals are transmitted to the corresponding electric pulse signals of the testing device and are transmitted to the trigger circuit.
3. A lighting bank testing device according to claim 1, characterized in that the trigger circuit of the pulse driver is composed of RK triggers G1-G5, G1-G5 are trigger ics connected in the following way: r1, R3, R5, R7 and R9 are connected with triodes T1, T3, T5, T7 and T9, corresponding relay contacts of the triodes control red light-emitting tubes, R2, R4, R6, R8 and R10 in the circuit are connected with triodes T2, T4, T6, T8 and T10, corresponding relay contacts of the triodes control green light-emitting tubes, and corresponding light-emitting rows emit light; after the electric signal is transmitted to the trigger integrated circuit, when the triggering condition is met, the RS trigger G1-G5 trigger circuit generates a periodic electric signal to realize circuit triggering and overturning, so that the states of the triodes T1-T10 connected afterwards are changed, the level of the trigger is changed from high to low, and the output state is overturned from low to high.
4. A lighting bank testing apparatus according to claim 1, wherein said reset circuit has "automatic" and "manual" switch bits. When the automatic switch is in the function, the corresponding panel indicator lamps on the light emitting row automatically turn over once every 3 seconds; the alternate lighting of the green luminotron and the red luminotron is realized.
5. According to claim 1, the test method comprises the following steps:
(1) firmly mounting the light-emitting bar to be tested on the aging board, fixing the light-emitting bar to be tested on the test board, and screwing down the screw; a special key is used for turning on a power switch, and an alternating current indicator lamp is on a test board;
(2) selecting an 'automatic' or 'manual' switch position, normally selecting an 'automatic' switch position function during electrical aging, and selecting a 'manual' switch position function during testing;
(3) functional testing: pressing the manual key turns the corresponding panel indicator light on the light emitting row from red to green once, pressing again, and changing the state once again; observing whether the colors of the indicating lamps on the light emitting row are uniform or not when the state of the indicating lamps is changed, and whether the indicating lamps are not bright or not or the bright colors are not enough; controlling the green light emitting tubes to emit light correspondingly; thereby detecting defective products;
(4) when the automatic switch function is selected, the corresponding panel indicator lamps on the light emitting row automatically turn over once every 3 seconds; from "red to green" or from "green to red"; at this time, if more than one indicator lamps cannot be normally turned over, or cannot be turned into green from red or cannot be turned into red from green or has obvious color difference, the indicator lamps are inferior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105628269A CN102478611A (en) | 2010-11-29 | 2010-11-29 | Luminous bar testing device and testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105628269A CN102478611A (en) | 2010-11-29 | 2010-11-29 | Luminous bar testing device and testing method thereof |
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| CN102478611A true CN102478611A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105628269A Pending CN102478611A (en) | 2010-11-29 | 2010-11-29 | Luminous bar testing device and testing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109410807A (en) * | 2018-11-21 | 2019-03-01 | 惠科股份有限公司 | drive circuit and display panel |
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2010
- 2010-11-29 CN CN2010105628269A patent/CN102478611A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109410807A (en) * | 2018-11-21 | 2019-03-01 | 惠科股份有限公司 | drive circuit and display panel |
| US11443666B2 (en) | 2018-11-21 | 2022-09-13 | HKC Corporation Limited | Drive circuit for adjusting a voltage required for aging detection using a feedback circuit, and display panel |
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Application publication date: 20120530 |