CN110878749A - Device and method for testing water pump of automobile windscreen wiper - Google Patents
Device and method for testing water pump of automobile windscreen wiper Download PDFInfo
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- CN110878749A CN110878749A CN201911340152.5A CN201911340152A CN110878749A CN 110878749 A CN110878749 A CN 110878749A CN 201911340152 A CN201911340152 A CN 201911340152A CN 110878749 A CN110878749 A CN 110878749A
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- module
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention relates to the technical field of automobile part detection, and discloses a testing device for an automobile windscreen wiper water pump, which comprises a power supply module, a control module, a processing module, a storage module, an input module, a water pressure testing module and an alarm module, wherein the power supply module supplies power to the water pump, the processing module controls the control module to realize on-off control of the water pump, test data signals are input into the processing module through the input module, the times, the running time and the stopping time of test circulation can be limited, the water pressure testing module can give a prompt when the test is finished to remind that the next water pump is replaced, and can give an alarm when an abnormality occurs in the water pump test, so that the testing device is high in automation degree, convenient and practical.
Description
Technical Field
The invention relates to the technical field of automobile part detection, in particular to a device and a method for testing an automobile windscreen wiper water pump.
Background
The wiper known as WindshieldWiper is a sheet structure mounted in front of a windshield, and comprises a motor, a speed reducer, a four-bar mechanism, a wiper arm spindle, a wiper blade assembly and the like, and is mainly used for sweeping rain, snow and dust which obstruct the view on the windshield.
Generally, a wiper control knob is arranged on a handle of an automobile combined switch and is provided with 3 gears with low speed, high speed and intermittence. The top end of the handle is provided with a washer button switch, and washing water is sprayed out by pressing the button switch and is matched with a windscreen wiper to wash the windscreen. The washer system is a common device on the automobile and consists of a water storage tank, a water pump, a water delivery pipe and a water spray nozzle. The water storage tank is a plastic tank with 1.5-2 liters generally, the water pump is a miniature electric centrifugal pump generally, washing water in the water storage tank is conveyed to the water spray nozzles through the miniature electric centrifugal pump, the washing water is divided into small jet flows through the extrusion action of 2-4 water spray nozzles and sprayed to the windshield, and the miniature electric centrifugal pump is matched with the windshield wiper to play a role in cleaning the windshield. Because the automobile is easy to deposit dust at the junction of the front windshield and the automobile body in the daily use process, impurities in the washing water can block the water spray nozzle along with the passage of time, the problem that the water pump works and water flow cannot be sprayed is easily caused, the working resistance of the water pump in a period of time is increased, and an internal motor is easily burnt.
Therefore, the scrubber needs to be tested in a severe environment after production is completed, the water pump capable of easily enduring the severe environment is screened out, and the overall quality is improved.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a device and a method for testing a wiper water pump of an automobile, which have the advantages of being capable of testing the water pump efficiently and reliably.
The above object of the present invention is achieved by the following means.
A testing device for a water pump of an automobile windscreen wiper comprises:
the power supply module is electrically connected with the control module, the control module is electrically connected with the water pump, and the control module is used for controlling the water pump to start and stop by switching on and off;
the processing module is electrically connected with the control module, the storage module is electrically connected with the processing module and used for storing test data signals, the processing module is used for calling the test data signals and sending control signals to the control module according to the control instructions, the control module responds to the control signals to control the power on and off of the water pump, and the processing module sends termination signals when the test is finished;
the input module is electrically connected with the processing module and used for inputting test data signals to the processing module, and the test data signals comprise the test cycle number, the running time and the stopping time of the water pump test;
the water pressure testing module is electrically connected with the processing module, detachably fixed at the water outlet pipe of the water pump in a sealing manner and used for testing the water pressure at the water outlet pipe of the water pump to obtain a corresponding water pressure signal, the processing module receives the water pressure signal to generate a water pressure statistical record, and the processing module sends an abnormal signal when the water pressure signal generates abnormal fluctuation;
and the alarm module is in data connection with the processing module, sends an abnormal message after receiving the abnormal signal, and sends a termination message after receiving the termination signal.
Through the technical scheme, the power module supplies power to the water pump, the processing module realizes on-off control of the water pump through control over the control module, test data signals are input into the processing module through the input module, limitation can be made on the number of times of test circulation, the running time and the stop time, the water pressure testing module can give a prompt when the test is finished, the next water pump is reminded to be replaced, an alarm can be given when abnormality occurs in the water pump test, the automation degree is high, and convenience and practicability are realized.
The invention is further configured to: the power failure detection module is electrically connected with the power supply module and the processing module, and the power failure storage module is in data connection with the processing module;
when the power failure detection module detects that the power supply module fails, a fault signal is output, and after the processing module receives the fault signal, the processing module writes current test node data into the power failure storage module for storage;
and when the power failure detection module detects that the power supply module fails, a safety signal is output, and after the processing module receives the safety signal, the processing module reads the data of the test node to continue testing.
Through the technical scheme, once the power module has a problem in the experimental process, the current test node data is written into the power-down storage module for storage so as to continue testing after the power module is subjected to fault removal instead of restarting.
The invention is further configured to: the display module is in data connection with the processing module and is used for displaying the test data signal and the current test node data.
Through the technical scheme, the staff can know the test progress in time conveniently.
A test method of an automobile wiper water pump comprises the following steps:
inputting a test data signal, wherein the test data signal comprises the test cycle number, the running time and the stopping time of the water pump test;
starting a test after the water outlet of the water pump is closed, and acquiring the water pressure change condition at the water outlet pipe of the water pump;
and after the test is finished, the worker is automatically reminded of the completion of the test.
The invention is further configured to: when the water pressure at the water outlet pipe of the water pump is abnormally changed, recording a timestamp of the abnormal change, the current times of the test cycle times, the times of the abnormal change and the duration;
the abnormal change is a floating change of more than 15% of the water pressure at the water outlet pipe of the water pump compared with a preset value.
Through the technical scheme, the change of the water pressure reflects the running state of the water pump, the rotation speed of the water pump is high when the pressure is high, the rotation speed of the water pump is low when the pressure is low, and the water pump may have problems when abnormal changes occur if the input voltage and the power of the water pump are stable.
The invention is further configured to: the number of test cycles is configured to be 300-500;
the running time is configured to be 3S-6S;
the stop time is configured to be 20S-30S.
By the technical scheme, the test can be finished after the test is carried out for 500 times in a cycle of 300 times to 6 seconds and then 20 seconds to 30 seconds in each small test period, and the test mode with the interval between the running and the 2-time stopping is designed, so that the working state of the washer of the automobile wiper under normal working is simulated, and few people can always work.
The invention is further configured to: and if the times of the abnormal changes are larger than the standard value, sending out serious warning information.
Through the technical scheme, the more times of abnormal changes indicate that the water pump has a fault, the greater the possibility.
The invention is further configured to: and if the time interval between the adjacent abnormal changes is smaller than a preset time value, sending out general warning information.
Compared with the prior art, the invention has the beneficial effects that:
the power module supplies power to the water pump, the processing module controls the control module to realize on-off control of the water pump, test data signals are input into the processing module through the input module, the number of times of test circulation, the running time and the stop time can be limited, the water pressure testing module can give a prompt when the test is finished, the next water pump is reminded to be replaced, an alarm can be given when abnormality occurs in the water pump test, the degree of automation is high, and the water pump testing device is convenient and practical.
Drawings
Fig. 1 is a schematic diagram of module data connection according to an embodiment of the present invention.
Reference numerals: 1. a power supply module; 2. a control module; 3. a processing module; 4. a storage module; 5. an input module; 6. a water pressure testing module; 7. an alarm module; 8. a power failure detection module; 9. a power-down storage module; 10. and a display module.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
A testing device of an automobile windscreen wiper water pump is shown in figure 1 and comprises a power supply module 1, a control module 2, a processing module 3, a storage module 4, an input module 5, a water pressure testing module 6 and an alarm module 7.
The power module 1 is electrically connected with the control module 2, the control module 2 is electrically connected with the water pump, and the control module 2 is used for controlling the water pump to start and stop through power on and power off. The processing module 3 is electrically connected with the control module 2, the storage module 4 is electrically connected with the processing module 3, the storage module 4 is used for storing test data signals, the processing module 3 retrieves the test data signals and sends out control signals to the control module 2 according to control instructions, the control module 2 responds to the control signals to control the on-off of the water pump, and the processing module 3 sends out termination signals when the test is finished.
The input module 5 is electrically connected with the processing module 3 and is used for inputting test data signals to the processing module 3, wherein the test data signals comprise test cycle times, running time and stopping time of the water pump test. The water pressure testing module 6 is electrically connected with the processing module 3, can be detachably fixed at the water outlet pipe of the water pump in a sealing manner, and can be used for testing the water pressure at the water outlet pipe of the water pump and obtaining a corresponding water pressure signal. The processing module 3 receives the water pressure signal to generate a water pressure statistical record, and the abnormal signal is sent by the processing module 3 when the water pressure signal generates abnormal fluctuation.
The alarm module 7 is in data connection with the processing module 3, the alarm module 7 can send out an abnormal message after receiving the abnormal signal, and the alarm module 7 can send out a termination message after receiving the termination signal to remind a worker of paying attention.
Can be by power module 1 to the water pump power supply, through processing module 3 to control module 2's control, realize the break-make electric control to the water pump, by input module 5 input test data signal in to processing module 3, can make the restriction to test endless number of times, operating duration and off-time, water pressure test module 6 can give the suggestion when the test finishes, remind to change next water pump, can also appear reporting an emergency and asking for help or increased vigilance when unusual in the water pump test, and degree of automation is high, convenient and practical.
The testing device of the embodiment further comprises a power failure detection module 8 and a power failure storage module 9, wherein the power failure detection module 8 is electrically connected with the power supply module 1 and the processing module 3, and the power failure storage module 9 is in data connection with the processing module 3;
when the power failure detection module 8 detects that the power supply module 1 fails, a fault signal is output, and after the processing module 3 receives the fault signal, the processing module 3 writes the current test node data into the power failure storage module 9 for storage;
when the power failure detection module 8 detects a fault of the power supply module 1, a safety signal is output, and after the processing module 3 receives the safety signal, the processing module 3 reads data of the test node to continue testing. In the experimental process, once the power module 1 has a problem, the current test node data is written into the power-down storage module 9 for storage so as to be used for continuing the test after the power module 1 is subjected to fault elimination, rather than restarting.
The testing device of the embodiment further comprises a display module 10, the display module 10 is in data connection with the processing module 3 and used for displaying the testing data signals and the current testing node data, and therefore workers can know the testing progress in time conveniently.
A test method of an automobile wiper water pump comprises the following steps:
inputting a test data signal, wherein the test data signal comprises the test cycle number, the running time and the stopping time of the water pump test;
starting a test after the water outlet of the water pump is closed, and acquiring the water pressure change condition at the water outlet pipe of the water pump;
and after the test is finished, the worker is automatically reminded of the completion of the test.
When the water pressure at the water outlet pipe of the water pump is abnormally changed, recording a timestamp of the abnormal change, the current times of the test cycle times, the times of the abnormal change and the duration;
the abnormal change is a floating change of more than 15% of the water pressure at the water outlet pipe of the water pump compared with a preset value.
By the arrangement, the change of the water pressure reflects the running state of the water pump, the rotation speed of the water pump is fast when the pressure is larger, the rotation speed of the water pump is smaller when the pressure is smaller, if the input voltage and the power of the water pump are stable, the water pump possibly has problems when abnormal change occurs, and abnormality can be found timely. The specific test indexes can be preset through the input module 5 and the processing module 3, for example, the number of test cycles is set to be 300-.
And if the times of abnormal changes are larger than the standard value, sending out serious warning information. And if the time interval of the occurrence of the adjacent abnormal changes is smaller than the preset time value, sending out general warning information. The excessive occurrence frequency of the abnormal changes indicates that the water pump has a large possibility of failure, is relatively unstable, needs to pay attention to the fact that the smaller the time interval of the occurrence of the adjacent abnormal changes, the greater and concentrated probability of the occurrence of the failure is, and is worthy of reminding attention.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a testing arrangement of car wiper water pump which characterized in that includes:
the water pump control system comprises a power module (1) and a control module (2), wherein the power module (1) is electrically connected with the control module (2), the control module (2) is electrically connected with a water pump, and the control module (2) is used for controlling the water pump to start and stop by switching on and off;
the water pump testing device comprises a processing module (3) and a storage module (4), wherein the processing module (3) is electrically connected with the control module (2), the storage module (4) is electrically connected with the processing module (3), the storage module (4) is used for storing a test data signal, the processing module (3) is used for calling the test data signal and sending a control signal to the control module (2) according to the control instruction, the control module (2) responds to the control signal to control the on-off of the water pump, and a termination signal is sent by the processing module (3) when the test is finished;
the input module (5) is electrically connected with the processing module (3) and is used for inputting test data signals to the processing module (3), and the test data signals comprise the test cycle number, the running time and the stopping time of the water pump test;
the water pressure testing module (6) is electrically connected with the processing module (3), detachably fixed at the water outlet pipe of the water pump in a sealing manner, and used for testing the water pressure at the water outlet pipe of the water pump to obtain a corresponding water pressure signal, the processing module (3) receives the water pressure signal to generate a water pressure statistical record, and the processing module (3) sends an abnormal signal when the water pressure signal generates abnormal fluctuation;
the alarm module (7) is in data connection with the processing module (3), the alarm module (7) sends an abnormal message after receiving the abnormal signal, and the alarm module (7) sends a termination message after receiving the termination signal.
2. The testing device of the water pump of the automobile windscreen wiper as claimed in claim 1, further comprising a power-down detection module (8) and a power-down storage module (9), wherein the power-down detection module (8) is electrically connected with the power module (1) and the processing module (3), and the power-down storage module (9) is in data connection with the processing module (3);
when the power failure detection module (8) detects that the power supply module (1) fails, a fault signal is output, and after the processing module (3) receives the fault signal, the processing module (3) writes current test node data into the power failure storage module (9) for storage;
when the power failure detection module (8) detects that the power supply module (1) fails, a safety signal is output, and after the processing module (3) receives the safety signal, the processing module (3) reads the data of the test node to continue testing.
3. The testing device of the water pump for the automobile windscreen wiper as claimed in claim 2, further comprising a display module (10), wherein the display module (10) is in data connection with the processing module (3) and is used for displaying the test data signal and the current test node data.
4. A test method of an automobile wiper water pump is characterized by comprising the following steps:
inputting a test data signal, wherein the test data signal comprises the test cycle number, the running time and the stopping time of the water pump test;
starting a test after the water outlet of the water pump is closed, and acquiring the water pressure change condition at the water outlet pipe of the water pump;
and after the test is finished, the worker is automatically reminded of the completion of the test.
5. The method for testing the water pump of the automobile wiper blade of claim 4, wherein when the water pressure at the water outlet pipe of the water pump is abnormally changed, a timestamp of the occurrence of the abnormal change, the current times of the test cycle times, the times of the occurrence of the abnormal change and the duration are recorded;
the abnormal change is a floating change of more than 15% of the water pressure at the water outlet pipe of the water pump compared with a preset value.
6. The method as claimed in claim 5, wherein the number of test cycles is set to 300-500;
the running time is configured to be 3S-6S;
the stop time is configured to be 20S-30S.
7. The method of claim 5, wherein if the number of occurrences of abnormal changes is greater than a standard value, a serious warning message is issued.
8. The method for testing the water pump of the automobile wiper blade of claim 5, wherein if the time interval between the occurrence of the adjacent abnormal changes is less than a preset time value, a general warning message is sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340152.5A CN110878749B (en) | 2019-12-23 | 2019-12-23 | Device and method for testing water pump of automobile windscreen wiper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911340152.5A CN110878749B (en) | 2019-12-23 | 2019-12-23 | Device and method for testing water pump of automobile windscreen wiper |
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| CN110878749A true CN110878749A (en) | 2020-03-13 |
| CN110878749B CN110878749B (en) | 2021-08-10 |
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| CN201911340152.5A Active CN110878749B (en) | 2019-12-23 | 2019-12-23 | Device and method for testing water pump of automobile windscreen wiper |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100188411B1 (en) * | 1995-12-21 | 1999-06-01 | 양재신 | Endurance tester of water pump |
| CN201096575Y (en) * | 2007-07-24 | 2008-08-06 | 比亚迪股份有限公司 | Durability test device for vacuum booster with master cylinder assembly |
| CN102135091A (en) * | 2011-04-11 | 2011-07-27 | 宁波拓普制动系统有限公司 | Device and method for testing durability of electronic vacuum pump |
| CN209212532U (en) * | 2018-12-17 | 2019-08-06 | 山东挚刚智能控制机械有限公司 | Long distance wireless test device for water pump system |
-
2019
- 2019-12-23 CN CN201911340152.5A patent/CN110878749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100188411B1 (en) * | 1995-12-21 | 1999-06-01 | 양재신 | Endurance tester of water pump |
| CN201096575Y (en) * | 2007-07-24 | 2008-08-06 | 比亚迪股份有限公司 | Durability test device for vacuum booster with master cylinder assembly |
| CN102135091A (en) * | 2011-04-11 | 2011-07-27 | 宁波拓普制动系统有限公司 | Device and method for testing durability of electronic vacuum pump |
| CN209212532U (en) * | 2018-12-17 | 2019-08-06 | 山东挚刚智能控制机械有限公司 | Long distance wireless test device for water pump system |
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| CN110878749B (en) | 2021-08-10 |
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