CN2243687Y - Flash relay tester - Google Patents
Flash relay tester Download PDFInfo
- Publication number
- CN2243687Y CN2243687Y CN 94236494 CN94236494U CN2243687Y CN 2243687 Y CN2243687 Y CN 2243687Y CN 94236494 CN94236494 CN 94236494 CN 94236494 U CN94236494 U CN 94236494U CN 2243687 Y CN2243687 Y CN 2243687Y
- Authority
- CN
- China
- Prior art keywords
- digital
- constitutes
- flash
- constitute
- relay tester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a flash relay tester which is a tester for testing the flash times per minute and lighting rate per minute for a flash relay. The utility model is characterized in that the flash relay tester is composed of a digital type processing circuit for flash signals and a digital display circuit of a microprocessor. After the flash signals are treated by the two circuits, the flash times n per minute and the lighting rate Ts per minute are directly displayed in a digital mode; display errors delta (n) are no more than one time per minute, and delta Ts is no more than 1%. The utility model is especially suitable for testing products in flash relay production plants, automobile plants and motorbike plants.
Description
The utility model relates to a kind of flashing relay tester, be a kind of per minute guide number of testing flashing relay and light a lamp from testing tool.
Automobile, motorcycle are traffic safety in the process of moving, warn other vehicles or pedestrians, at headstock, the tailstock light fixture of using its driving trend of the glittering demonstration of light are installed all, and the glittering of its light is flashing relay control with relay control.For the theory of correct control or test flashing relay is flashed number of times and the rate of lighting a lamp, the comprehensive large test device that automobile production producer is used, too expensive, maintenance difficult.The employing oscillograph, the digital electronic unit that have are tested and are and guided production, and flashing relay is because of a variety of causes, its light a lamp from flash frequency and very big fluctuation arranged with design, the rate of can not lighting a lamp test can not overcome the error of frequently shaking and causing.And adopt on most manufacturer production lines the artificial visually examine to the time count, grasp by rule of thumb, cause the labor amount big like this, workman's eye fatigue, efficiency is low, the comprehensive fluctuation of product is big.
The purpose of this utility model is to design a kind of flashing relay tester, can show directly that the rate of lighting a lamp and the per minute of tested flashing relay flashes number of times, the test product high conformity, and operating maintenance is convenient, raises labour productivity, and with low cost.
The utility model is a kind of flashing relay tester, and its feature is made up of digital blinker treatment circuit and microprocessor digital display circuit.Digital blinker treatment circuit is driven readable incoming interface and is formed by light signal input shaper device, time clock Discr., synchronous zero clearing device, frequency counter, line.The microprocessor display circuit is made up of cpu central processing unit, program curing memory, decoder driver, output buffer, digital indicator.
The utility model has following accompanying drawing:
Fig. 1 is the outside drawing of flashing relay tester.
Fig. 2 is the logical diagram of the digital blinker treatment circuit of flashing relay tester.
Fig. 3 is the logical diagram of the microprocessor display circuit of flashing relay tester.
Embodiment of the present utility model is described with reference to the accompanying drawings.The outside drawing of flashing relay tester as shown in Figure 1, digital blinker treatment circuit and microprocessor display circuit are assemblied in and are installed on the printed wiring board in the casing 10, time accumulative total and number of times accumulative total switching button 1 are housed on the front panel, cumulative time, number of times reset button 2, microprocessor reset key 3, power switch key 4, there is power supply input jack 5 on the casing right side, the operating voltage of input instrument, the casing back side is provided with dodges signal input jack 6 frequently, import the sudden strain of a muscle frequency signal of tested flashing relay, time also is installed on the front panel, number of times display 7, the rate of lighting a lamp (inferior/minute) display 8, and be provided with alarm lamp 9 whether working properly.
The logical diagram of digital blinker treatment circuit as shown in Figure 2, by light signal input shaper device, the time clock Discr., synchronously zero clearing device, frequency counter, line drive and read in interface and form.By 74LS04 not gate U
14Constitute light signal input shaper device, dodging frequently to input, signal carries out shaping.Pass through U
13Or the time clock Discr. that door 74LS02 constitutes differentiates that through time clock Φ driving is by 4518 counter U
10, U
11And button switch K
1, K
2And resistance R
1, R
2The frequency counter of forming is counted.Press K
1(1 on the panel) carries out time stored count, number of times stored count conversion, and shows from display 7, presses K
2(2 on the panel) can carry out zero clearing and reset counting, metering.U
10, U
11Output by by 244 line drive U
8, U
9The line driving that constitutes is read in interface and is read in data to central processing unit and program curing memory, by 4518 counter U
12The synchronous zero clearing device that constitutes
Carry out synchronous zero clearing.
The logical diagram of microprocessor display circuit as shown in Figure 3, the central processing unit U that it is made of 280ACPU
1, program curing memory, decoder driver, output buffer, digital indicator are formed.The program curing memory adopts 2716 memory U
2, decoder driver adopts 138 address decoding driving circuit U
3, output buffer adopts 74LS273 impact damper U
4-U
7, digital indicator is by 4511 seven-segment decoder U
15, U
16, 1413 driver U
17, U
18, common cathode seven segment digital tubes DG
1～DG
11Form.From U
9, U
8The data of reading in, bright and dark time value is through cpu central processing unit U
1And program curing memory U
2Handle, calculate per minute and flash number of times and light a lamp rate, decoder driver U
3The decoding output drive signal is through U
4, U
6, by U
15, U
16Carry out seven sections decodings and offer DG
1～DG
11, through impact damper U
5, U
7, by driver U
17, U
18To DG
1～DG
11Provide display drive signals, DG
1～DG
5Show the rate of lighting a lamp time/minute, DG with numeral
6～DG
11With digital display flashing number of times, cumulative time or cumulative number.The rate of lighting a lamp TS=l
2/ t
1.100%, flash frequency n=inferior/per minute.40%＜TS under normal voltage＜60%, n=85 ± 10 time/minute, 30%＜TS under the improper voltage＜70%, 60＜n＜120 time/minute, when satisfying above-mentioned condition, green light is bright in the alarm lamp 9 whether working properly, otherwise the alarm that sends out a warning, display error Δ TS≤1%, Δ n≤1 time/minute.
The flashing relay tester that manufactures and designs by the utility model, satisfy the design standards of flashing relay, checker or direct labor need not be flashed number of times by contrast time range estimation number, digital indicator is the display flashing number of times and the rate of lighting a lamp directly, alleviate labor strength, raise labour productivity, reduce deviser's design time, obtain the optimal design effect, each cycle synchronisation show the rate of lighting a lamp and flash number of times/minute, operating maintenance is convenient, and is easy to manufacture with low cost, is specially adapted to the detection that each flashing relay factory and automobile, motor depot make product.
Claims (3)
1, a kind of flashing relay tester has casing, working power, is characterised in that altogether by digital blinker treatment circuit and microprocessor digital display circuit to form.
2, by the described flashing relay tester of claim 1, it is characterized in that said digital blinker treatment circuit is by 74LS04 not gate U
14The light signal input shaper device that constitutes, 74LS02 or door U
13The time clock Discr., the 4815 counter U that constitute
10, U
11And button switch K
1, K
2And resistance R
1, R
2The frequency counter that constitutes, 4815 counter U
12The synchronous zero clearing device and the 244 line drive U that constitute
8, U
9The line that constitutes drives readable incoming interface to be formed, by U
8, U
9D
0-D
7Central processing unit U in the microprocessor digital display circuit
1With program curing memory U
2Read in data.
3, by the described flashing relay tester of claim 1, it is characterized in that said microprocessor digital display circuit constitutes central processing unit U by 280ACPU
1, the program curing memory U that constitutes of 2716 memories
2, 138 address decoding driving circuit U
3The decoder driver, the 74LS273 impact damper U that constitute
4-U
7The output buffer and the 4511 seven-segment decoder U that constitute
15, U
16, 1413 driver U
17, U
18, common cathode seven segment digital tubes DG
1-DG
11The digital indicator that constitutes is formed, U
1, U
2Line from digital blinker treatment circuit drives readable incoming interface U
8, U
9Read in data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236494 CN2243687Y (en) | 1994-05-11 | 1994-05-11 | Flash relay tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236494 CN2243687Y (en) | 1994-05-11 | 1994-05-11 | Flash relay tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2243687Y true CN2243687Y (en) | 1996-12-25 |
Family
ID=33844428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94236494 Expired - Fee Related CN2243687Y (en) | 1994-05-11 | 1994-05-11 | Flash relay tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2243687Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590114A (en) * | 2015-01-12 | 2015-05-06 | 力帆实业(集团)股份有限公司 | System and method for detecting flash relay |
-
1994
- 1994-05-11 CN CN 94236494 patent/CN2243687Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104590114A (en) * | 2015-01-12 | 2015-05-06 | 力帆实业(集团)股份有限公司 | System and method for detecting flash relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |