CN215767559U - Detection circuit for spray pipe of automobile windshield - Google Patents
Detection circuit for spray pipe of automobile windshield Download PDFInfo
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- CN215767559U CN215767559U CN202121790772.1U CN202121790772U CN215767559U CN 215767559 U CN215767559 U CN 215767559U CN 202121790772 U CN202121790772 U CN 202121790772U CN 215767559 U CN215767559 U CN 215767559U
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Abstract
The utility model discloses a detection circuit of a water spray pipe of an automobile windshield, which comprises a starting switch, an S13 stop switch, a KT10 inflation delay relay, a KT10 first normally open contact, a KT10 second normally open contact, a Y3 normally closed vent valve, a Y4 normally open vent valve, a KT11 flow detection delay relay, a KT11 normally open contact, a K4 first pressure gauge relay, a K4 normally open contact, a K4 normally closed contact, a K4 single-pole double-throw contact switch, a K5 second pressure gauge relay, a K5 normally open contact, a K5 normally closed contact, a K6 test OK relay, a K6 contact, a K6 normally closed contact, a K7 test relay, a K7 normally open contact, a S6 first pressure gauge normally open contact, a S7 second pressure gauge normally open contact, a S10 flow gauge normally open contact, a S10 flow gauge contact, an H2 OK pressure indicator lamp, an H3 NG pressure indicator lamp, an H4 NG indicator lamp and a H5 flow indicator lamp; the two aspects of detection are integrated through pressure and flow detection, and the detection result can be quickly detected.
Description
Technical Field
The utility model relates to an automobile detection circuit, in particular to an automobile windshield spray pipe detection circuit.
Background
The current wiring harness industry detects the sprinkler pipe on the automobile only through a single mode, such as:
firstly, the method comprises the following steps: the air pressure detection method is used for judging whether the air pressure ratio is changed or not by keeping for a certain time under the condition that one end of the spray pipe is blocked and applying certain air pressure to the other end of the spray pipe and then blocking the other end of the spray pipe, and judging whether the spray pipe is damaged or not by the pressure change.
II, secondly: the air flow detection method comprises loading compressed air with a certain pressure at one end of the spray pipe, detecting the flow change of the discharged compressed air at the other end of the spray pipe, and determining whether the spray pipe is damaged or deformed by comparing and detecting for a certain time.
The current approach has the following problems and deficiencies:
firstly, the method comprises the following steps: when the air pressure detection method is used for detection, the flow of the spray pipe cannot be judged, so that the phenomenon of insufficient water spraying power or no water spraying is caused when water is sprayed.
II, secondly: when the air flow detection method is used for detection, whether the spray pipe is damaged or not can not be judged correctly, and water leakage phenomenon exists in the spray pipe when water is sprayed, so that internal circuits of a wiring harness are damaged.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a detection circuit for a water spray pipe of an automobile windshield, which is used for judging whether the water spray pipe of the automobile is damaged or not by detecting the pressure and flow change of the water spray pipe of the automobile.
The technical scheme of the utility model is as follows: the detection circuit comprises a starting switch, a stopping switch, a KT10 gas-filled time-delay relay, a KT10 first normally-open contact, a KT10 second normally-open contact, a Y3 normally-closed vent valve, a Y4 normally-open vent valve, a KT11 flow detection time-delay relay, a KT11 normally-open contact, a K4 first pressure meter relay, a K4 normally-open contact, a K4 normally-closed contact, a K4 single-pole double-throw contact switch, a K5 second pressure meter relay, a K5 normally-open contact, a K5 normally-closed contact, a K6 test OK relay, a K6 normally-open contact, a K6 normally-closed contact, a K7 test NG relay, a K7 normally-open contact, a S6 first pressure meter normally-open contact, a S7 second normally-open contact, a S10 flow meter normally-open contact, a S10 flow meter contact, an H2 pressure OK indicator, an H3 pressure NG indicator, an H4 flow indicator and an H5 flow indicator;
one end of the stop switch is connected with the positive electrode of the power supply, the other end of the stop switch is connected with one end of the starting switch, the other end of the starting switch is connected with a static contact of a K4 single-pole double-throw contact switch, a normally open movable contact of the K4 single-pole double-throw contact switch is connected with one end of a KT10 inflatable time delay relay, and the other end of the KT10 inflatable time delay relay is connected with the negative electrode of the power supply; a normally closed movable contact of the K4 single-pole double-throw contact switch is connected with one end of a Y3 normally closed vent valve, and the other end of the Y3 normally closed vent valve is connected with the negative electrode of a power supply;
the other end of the starting switch is connected with one end of a K6 normally closed contact, the other end of a K6 normally closed contact is connected with one end of a Y4 normally open air outlet valve, and the other end of the Y4 normally open air outlet valve is connected with the negative electrode of a power supply;
the first normally open contact one end of KT10 is connected to the stop switch other end, and K4 normally open contact one end is connected to the first normally open contact other end of KT10, and K4 normally open contact other end K5 normally open contact one end, the branch 3 way is connected to the K5 normally open contact other end: the first path is connected with one end of a K6 test OK relay, and the other end of the K6 test OK relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H2 pressure OK indicator light, and the other end of the H2 pressure OK indicator light is connected with the negative electrode of a power supply; the third path is connected with one end of a KT11 flow detection delay relay, and the other end of the KT11 flow detection delay relay is connected with the cathode of a power supply;
one end of the K6 normally open contact is connected with one end of a KT10 first normally open contact, and the other end of the K6 normally open contact is connected with the other end of the K5 normally open contact;
the other end of the stop switch is connected with one end of a KT10 second normally open contact, the other end of the KT10 second normally open contact is connected with one end of a K4 normally closed contact, the other end of the K4 normally closed contact is connected with one end of a K5 normally closed contact, and the other end of the K5 normally closed contact is divided into two paths: the first path is connected with one end of a K7 testing NG relay, and the other end of the K7 testing NG relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H3 pressure NG indicator light, and the other end of the H3 pressure NG indicator light is connected with the negative electrode of a power supply;
one end of the K7 normally open contact is connected with one end of a KT10 second normally open contact, and the other end of the K7 normally open contact is connected with the other end of the K5 normally closed contact;
after the normally open contact of the S6 first pressure gauge is connected with the K4 first pressure gauge relay in series, one end of the normally open contact is connected with the other end of the stop switch, and the other end of the normally open contact is connected with the negative electrode of the power supply;
after the normally open contact of the S7 second pressure gauge is connected with the relay of the K5 second pressure gauge in series, one end of the normally open contact of the S7 second pressure gauge is connected with the other end of the stop switch, and the other end of the normally open contact of the S7 second pressure gauge is connected with the negative electrode of the power supply;
the other end of the stop switch is connected with one end of a KT11 normally open contact, and the other end of the KT11 normally open contact is divided into two paths: the first path is connected with the normally open contact of the S10 flowmeter and the H4 flow OK indicator lamp in series and then is connected with the negative electrode of the power supply; the second path is connected with the negative electrode of the power supply in series after the normally closed contact of the S10 flow meter and the H5 flow NG indicator lamp.
Further, the starting switch is provided with a starting switch self-locking circuit, the starting switch self-locking circuit comprises a K3 starting self-locking relay and a K3 normally open contact, the K3 starting self-locking relay is connected with the S5 starting button in series, and the K3 normally open contact is connected with the S5 starting button in parallel.
Furthermore, the first pressure gauge and the second pressure gauge are respectively arranged inside an air inlet and an air outlet of the automobile windshield spray pipe.
Furthermore, the flowmeter is arranged at the air outlet of the water spray pipe of the automobile windshield.
The utility model has the beneficial effects that: the multiple heads of the automobile water spray pipe are respectively inserted into the profiling and sealing module mechanisms, so that the water spray pipe loop is completely sealed. Under the condition that one end of the spray pipe is blocked, the other end of the spray pipe is blocked after a certain air pressure is applied, the air pressure ratio is judged to be changed or not through keeping for a certain time, and the water pipe is judged to be damaged or not through the pressure change. If the pressure judgment is not qualified, a pressure failure signal is output, and the test is terminated. And if the pressure is judged to be qualified, outputting a pressure qualified signal, and continuing the next flow test. All the valves at the joints of the water spray pipes are opened, compressed air with certain pressure is loaded at one end of each water spray pipe, the flow change of the discharged compressed air is detected at the other end of each water spray pipe, and whether the water spray pipes are damaged or not is judged through comparison and detection for certain time. And if the flow judgment is not qualified, outputting a flow unqualified signal and terminating the test. If the flow is judged to be qualified, outputting a flow qualified signal, resetting all electronic components, and repeating the next product test.
Compared with the prior art, the utility model integrates the two aspects of detection through pressure and flow detection, and can quickly detect the result. Compared with the prior art, the method has the advantages that the quality risk caused by secondary detection is avoided, the transfer frequency is reduced, the efficiency is improved, the labor cost is saved, the production beat is improved, and the fatigue of workers is reduced.
Drawings
FIG. 1 is a circuit diagram of the present invention for detecting the water spraying pipe of the windshield of an automobile.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, the detection circuit for the spray pipe of the windshield of the automobile comprises a starting switch, an S13 stop switch, a KT10 inflation delay relay, a KT10 first normally open contact, a KT10 second normally open contact, a Y3 normally closed vent valve, a Y4 normally open vent valve, a KT11 flow detection delay relay, a KT11 normally open contact, a K4 first pressure gauge relay, a K4 normally open contact, a K4 normally closed contact, a K4 single-pole double-throw contact switch, a K5 second pressure gauge relay, a K5 normally open contact, a K5 normally closed contact, a K6 test OK relay, a K6 normally open contact, a K6 normally closed contact, a K7 test NG relay, a K7 normally open contact, a S6 first normally open contact, a S7 second pressure gauge normally open contact, a S10 normally open contact, a S10 flow gauge normally open contact, a normally closed H2 OK pressure indicator, an H3 NG pressure indicator lamp, an H4 pressure indicator lamp, an H5 flow indicator lamp;
the starting switch is provided with a starting switch self-locking circuit, the starting switch self-locking circuit comprises a K3 starting self-locking relay and a K3 normally open contact, the K3 starting self-locking relay is connected with an S5 starting button in series, and the K3 normally open contact is connected with an S5 starting button in parallel.
One end of the stop switch is connected with the positive electrode of the power supply, the other end of the stop switch is connected with one end of the starting switch, the other end of the starting switch is connected with a static contact of a K4 single-pole double-throw contact switch, a normally open movable contact of the K4 single-pole double-throw contact switch is connected with one end of a KT10 inflatable time delay relay, and the other end of the KT10 inflatable time delay relay is connected with the negative electrode of the power supply; a normally closed movable contact of the K4 single-pole double-throw contact switch is connected with one end of a Y3 normally closed vent valve, and the other end of the Y3 normally closed vent valve is connected with the negative electrode of a power supply;
the other end of the starting switch is connected with one end of a K6 normally closed contact, the other end of a K6 normally closed contact is connected with one end of a Y4 normally open air outlet valve, and the other end of the Y4 normally open air outlet valve is connected with the negative electrode of a power supply;
the first normally open contact one end of KT10 is connected to the stop switch other end, and K4 normally open contact one end is connected to the first normally open contact other end of KT10, and K4 normally open contact other end K5 normally open contact one end, the branch 3 way is connected to the K5 normally open contact other end: the first path is connected with one end of a K6 test OK relay, and the other end of the K6 test OK relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H2 pressure OK indicator light, and the other end of the H2 pressure OK indicator light is connected with the negative electrode of a power supply; the third path is connected with one end of a KT11 flow detection delay relay, and the other end of the KT11 flow detection delay relay is connected with the cathode of a power supply;
one end of the K6 normally open contact is connected with one end of a KT10 first normally open contact, and the other end of the K6 normally open contact is connected with the other end of the K5 normally open contact;
the other end of the stop switch is connected with one end of a KT10 second normally open contact, the other end of the KT10 second normally open contact is connected with one end of a K4 normally closed contact, the other end of the K4 normally closed contact is connected with one end of a K5 normally closed contact, and the other end of the K5 normally closed contact is divided into two paths: the first path is connected with one end of a K7 testing NG relay, and the other end of the K7 testing NG relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H3 pressure NG indicator light, and the other end of the H3 pressure NG indicator light is connected with the negative electrode of a power supply;
one end of the K7 normally open contact is connected with one end of a KT10 second normally open contact, and the other end of the K7 normally open contact is connected with the other end of the K5 normally closed contact;
after the normally open contact of the S6 first pressure gauge is connected with the K4 first pressure gauge relay in series, one end of the normally open contact is connected with the other end of the stop switch, and the other end of the normally open contact is connected with the negative electrode of the power supply;
after the normally open contact of the S7 second pressure gauge is connected with the relay of the K5 second pressure gauge in series, one end of the normally open contact of the S7 second pressure gauge is connected with the other end of the stop switch, and the other end of the normally open contact of the S7 second pressure gauge is connected with the negative electrode of the power supply;
the other end of the stop switch is connected with one end of a KT11 normally open contact, and the other end of the KT11 normally open contact is divided into two paths: the first path is connected with the normally open contact of the S10 flowmeter and the H4 flow OK indicator lamp in series and then is connected with the negative electrode of the power supply; the second path is connected with the negative electrode of the power supply in series after the normally closed contact of the S10 flow meter and the H5 flow NG indicator lamp.
The testing operation flow comprises the following steps:
1. after the power supply is electrified, the normally closed button of S13 is confirmed not to be pressed, the start button of S5 is pressed, K3 is started to start the coil of the self-locking relay to be electrified and self-locked, the Y3 normally closed vent valve is electrified to be opened through the normally closed point of the K4 single-pole double-throw contact switch, and inflation is started, and the Y4 normally open vent valve is electrified to be closed, so that the pressure of a pipeline can be increased;
2. when the pressure of the pressure gauge S6 reaches a designated pressure such as 0.6MP, the normally open contact of the S6 first pressure gauge is closed, the relay of the K4 first pressure gauge is electrified, meanwhile, the K4 contact starts to act, the Y3 normally closed vent valve is powered off and closed, the Y3 normally closed vent valve is not inflated, and the sealing effect is achieved; the K4 single-pole double-throw contact switch is closed to a normally open contact, and the KT10 gas-filled time-delay relay is electrified to start timing;
3. the KT10 inflatable time delay relay sets the time delay to arrive, the judged result, if S6 first pressure gauge and S7 second pressure gauge are all above 0.5MP in the set pressure range, and there are signal outputs, K4 first pressure gauge relay and K5 second pressure gauge relay continue to put through, indicate that the pressure exists, the pressurize is qualified, after the pressurize is qualified, K6 tests the OK relay and passes KT10 first normally open contact, K4 normally open contact and K5 normally open contact put through, and the auto-lock, H2 pressure OK pilot lamp lights, test is qualified;
4. after the test is qualified, the K6 tests the OK relay for self-locking, and the KT11 flow detection delay relay is electrified to start timing; the K6 normally closed contact is disconnected, the Y4 normally open air outlet valve loses electricity and begins to deflate, the pressure of the first pressure gauge and the pressure of the second pressure gauge are reduced, the K4 first pressure gauge relay and the K5 second pressure gauge relay lose electricity, and the Y3 normally closed vent valve begins to be electrified and inflated; KT11 flow detection delay relay flow detection timing, timing to reach S10 flow meter output signal OK and NG signal, qualified H4 flow OK indicator light, unqualified H5 flow NG indicator light;
5. the pressure maintaining test is unqualified, the K4 normally open contact and the K5 normally open contact are not attracted, the KT10 inflatable time delay relay arrives, the NG relay is electrified and self-locked when the K7 test is carried out, and the NG indicator lamp with the pressure of H3 is lightened;
6. after the test is finished, the stop button S13 is pressed, the power is turned off, the test is reset, and the test is finished.
The multiple heads of the automobile water spray pipe are respectively inserted into the profiling and sealing module mechanisms, so that the water spray pipe loop is completely sealed. Under the condition that one end of the spray pipe is blocked, the other end of the spray pipe is blocked after a certain air pressure is applied, the air pressure ratio is judged to be changed or not through keeping for a certain time, and the water pipe is judged to be damaged or not through the pressure change. If the pressure judgment is not qualified, a pressure failure signal is output, and the test is terminated. And if the pressure is judged to be qualified, outputting a pressure qualified signal, and continuing the next flow test. All the valves at the joints of the water spray pipes are opened, compressed air with certain pressure is loaded at one end of each water spray pipe, the flow change of the discharged compressed air is detected at the other end of each water spray pipe, and whether the water spray pipes are damaged or not is judged through comparison and detection for certain time. And if the flow judgment is not qualified, outputting a flow unqualified signal and terminating the test. If the flow is judged to be qualified, outputting a flow qualified signal, resetting all electronic components, and repeating the next product test.
Compared with the prior art, the utility model integrates the two aspects of detection through pressure and flow detection, and can quickly detect the result. Compared with the prior art, the method has the advantages that the quality risk caused by secondary detection is avoided, the transfer frequency is reduced, the efficiency is improved, the labor cost is saved, the production beat is improved, and the fatigue of workers is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. Car windshield spray pipe detection circuitry, its characterized in that: the system comprises a starting switch, a stopping switch, a KT10 inflation time-delay relay, a KT10 first normally open contact, a KT10 second normally open contact, a Y3 normally closed vent valve, a Y4 normally open vent valve, a KT11 flow detection time-delay relay, a KT11 normally open contact, a K4 first pressure meter relay, a K4 normally open contact, a K4 normally closed contact, a K4 single-pole double-throw contact switch, a K5 second pressure meter relay, a K5 normally open contact, a K5 normally closed contact, a K6 test OK relay, a K6 normally open contact, a K6 normally closed contact, a K7 test NG relay, a K7 normally open contact, a S6 first pressure meter normally open contact, a S7 second normally open pressure meter contact, a S10 flow meter normally open contact, a S10 normally closed contact, an H2 pressure OK indicator lamp, an H3 pressure NG indicator lamp, an H4 OK indicator lamp and an H5 NG indicator lamp;
one end of the stop switch is connected with the positive electrode of the power supply, the other end of the stop switch is connected with one end of the starting switch, the other end of the starting switch is connected with a static contact of a K4 single-pole double-throw contact switch, a normally open movable contact of the K4 single-pole double-throw contact switch is connected with one end of a KT10 inflatable time delay relay, and the other end of the KT10 inflatable time delay relay is connected with the negative electrode of the power supply; a normally closed movable contact of the K4 single-pole double-throw contact switch is connected with one end of a Y3 normally closed vent valve, and the other end of the Y3 normally closed vent valve is connected with the negative electrode of a power supply;
the other end of the starting switch is connected with one end of a K6 normally closed contact, the other end of a K6 normally closed contact is connected with one end of a Y4 normally open air outlet valve, and the other end of the Y4 normally open air outlet valve is connected with the negative electrode of a power supply;
the first normally open contact one end of KT10 is connected to the stop switch other end, and K4 normally open contact one end is connected to the first normally open contact other end of KT10, and K4 normally open contact other end K5 normally open contact one end, the branch 3 way is connected to the K5 normally open contact other end: the first path is connected with one end of a K6 test OK relay, and the other end of the K6 test OK relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H2 pressure OK indicator light, and the other end of the H2 pressure OK indicator light is connected with the negative electrode of a power supply; the third path is connected with one end of a KT11 flow detection delay relay, and the other end of the KT11 flow detection delay relay is connected with the cathode of a power supply;
one end of the K6 normally open contact is connected with one end of a KT10 first normally open contact, and the other end of the K6 normally open contact is connected with the other end of the K5 normally open contact;
the other end of the stop switch is connected with one end of a KT10 second normally open contact, the other end of the KT10 second normally open contact is connected with one end of a K4 normally closed contact, the other end of the K4 normally closed contact is connected with one end of a K5 normally closed contact, and the other end of the K5 normally closed contact is divided into two paths: the first path is connected with one end of a K7 testing NG relay, and the other end of the K7 testing NG relay is connected with the negative electrode of a power supply; the second path is connected with one end of an H3 pressure NG indicator light, and the other end of the H3 pressure NG indicator light is connected with the negative electrode of a power supply;
one end of the K7 normally open contact is connected with one end of a KT10 second normally open contact, and the other end of the K7 normally open contact is connected with the other end of the K5 normally closed contact;
after the normally open contact of the S6 first pressure gauge is connected with the K4 first pressure gauge relay in series, one end of the normally open contact is connected with the other end of the stop switch, and the other end of the normally open contact is connected with the negative electrode of the power supply;
after the normally open contact of the S7 second pressure gauge is connected with the relay of the K5 second pressure gauge in series, one end of the normally open contact of the S7 second pressure gauge is connected with the other end of the stop switch, and the other end of the normally open contact of the S7 second pressure gauge is connected with the negative electrode of the power supply;
the other end of the stop switch is connected with one end of a KT11 normally open contact, and the other end of the KT11 normally open contact is divided into two paths: the first path is connected with the normally open contact of the S10 flowmeter and the H4 flow OK indicator lamp in series and then is connected with the negative electrode of the power supply; the second path is connected with the negative electrode of the power supply in series after the normally closed contact of the S10 flow meter and the H5 flow NG indicator lamp.
2. The automotive windshield sprinkler pipe detection circuit of claim 1, wherein: the starting switch is provided with a starting switch self-locking circuit, the starting switch self-locking circuit comprises a K3 starting self-locking relay and a K3 normally open contact, the K3 starting self-locking relay is connected with an S5 starting button in series, and the K3 normally open contact is connected with an S5 starting button in parallel.
3. The automotive windshield sprinkler pipe detection circuit of claim 1, wherein: the first pressure gauge and the second pressure gauge are respectively arranged inside an air inlet and an air outlet of the automobile windshield spray pipe.
4. The automotive windshield sprinkler pipe detection circuit of claim 1, wherein: the flowmeter is arranged at the air outlet of the water spray pipe of the automobile windshield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121790772.1U CN215767559U (en) | 2021-08-03 | 2021-08-03 | Detection circuit for spray pipe of automobile windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121790772.1U CN215767559U (en) | 2021-08-03 | 2021-08-03 | Detection circuit for spray pipe of automobile windshield |
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| Publication Number | Publication Date |
|---|---|
| CN215767559U true CN215767559U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121790772.1U Active CN215767559U (en) | 2021-08-03 | 2021-08-03 | Detection circuit for spray pipe of automobile windshield |
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| Country | Link |
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| CN (1) | CN215767559U (en) |
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2021
- 2021-08-03 CN CN202121790772.1U patent/CN215767559U/en active Active
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