CN111075743A - Automatic test method and test device for fan reliability - Google Patents
Automatic test method and test device for fan reliability Download PDFInfo
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- CN111075743A CN111075743A CN201911184437.4A CN201911184437A CN111075743A CN 111075743 A CN111075743 A CN 111075743A CN 201911184437 A CN201911184437 A CN 201911184437A CN 111075743 A CN111075743 A CN 111075743A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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Abstract
The invention provides an automatic test method and a test device for fan reliability, which send a command to a fan control module through a reliability test control module, select a corresponding test process, simultaneously collect the running state of a fan, judge whether the fan reliability meets the requirement, and output the test process and a test conclusion in real time, thereby achieving the purpose of automatic test. The test method comprises the following steps: receiving the selected test process type, and sending the selected test process to the fan control module by the reliability test control module; the fan control module controls the fan to perform reliability test according to the received test process, judges whether the fan is qualified or not, and sends the test process and the test result to the reliability test control module in real time; and the reliability test control module receives and displays the current test process and the test result.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an automatic testing method and a testing device for fan reliability.
Background
The fan is an important heat exchange component in the air conditioning system, so the reliability of the fan plays an important role in the stable operation of the whole system, and currently, a series of reliability tests are required for fans of various models, so that the fans can be formally used in air conditioning products. The existing fan reliability testing process is carried out manually, a large amount of manpower is consumed, the testing efficiency is low, and meanwhile due to the fact that testing modes of all people are different, judgment of experimental conclusions can be affected.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic test method and a test device for fan reliability.
An automatic test method for fan reliability comprises the following steps: step S100, receiving the selected test process type, and sending the selected test process to a fan control module by a reliability test control module; step S200, the fan control module controls the fan to carry out reliability test according to the received test process, judges whether the fan is qualified or not, and sends the test process and the test result to the reliability test control module in real time; and step S300, the reliability test control module receives and displays the current test process and the test result.
Further, the test process includes a specific test step corresponding to the selected test process type.
The specific steps of the test process are stored in the reliability test module, and the specific steps of each test process are edited in the reliability test module by an operator, so that the specific steps of each test process can be changed according to actual needs.
Further, the step S200 includes: one or more of a forward rotation stability test, a reverse rotation stability test, and a start-up performance test.
Three common test processes of the fan are listed, specific test steps are given, and the types of the test processes can be increased according to actual requirements.
Further, the forward rotation stability test or the reverse rotation stability test comprises the following steps: the fan control module records the running time and the real-time rotating speed of forward rotation or reverse rotation of the fan, and the interval time T is set every time the fan rotates forwardsInterval of positive rotationOr the reversal interval time TReversal intervalChanging the target rotation speed of the fan, if the absolute value of the difference between the target rotation speed and the real-time rotation speed is greater than the rotation speed judgment threshold, i.e. | target rotation speed-real-time rotation speed |>And judging the threshold value by the rotating speed, or judging that the fan is unqualified if the fan driving fault occurs in the testing period.
Further, the forward rotation interval time TInterval of positive rotationIs 10 min; the reversal interval time TReversal intervalIs 10 min; the minimum target rotating speed is 100 revolutions, 50 revolutions are increased for each change, and the maximum target rotating speed is 1200 revolutions; the rotation speed determination threshold is 10 revolutions.
Further, the starting performance test comprises the following steps: the fan control module records the starting time, the shutdown time and the real-time rotating speed of the fan, and the running starting time T of the fanOpening deviceThen the fan is turned off, and the fan maintains the shutdown time TClosing deviceThen, the steps are repeatedly executed until the switching times reach the starting time threshold value, and if the real-time wind speed reaches the time of the set wind speed>And judging that the fan is unqualified if the speed-up time threshold value or the fan driving fault occurs during the test.
Further, the starting time TOpening deviceIs 3min, the shutdown time TClosing deviceThe time is 1min, the starting time threshold is 30 times, and the speed-up time threshold is 20 s.
According to a test program preset in the reliability test control module, a test process is freely selected, automatic test of the reliability of the fan is achieved, the test step is completely and automatically controlled by the program, compared with manual control, a large amount of test preparation time is saved, repeated test errors are small, accuracy is high, and test efficiency and test accuracy are greatly improved.
Further, the fan is an outdoor unit fan.
The outdoor unit fan and the indoor unit fan have different working processes, so the specific test steps of the test process are different.
The invention also provides an automatic testing device for the reliability of the fan, which comprises:
the reliability test control module is used for receiving the selected test process type and sending the selected test process to the fan control module; and the test device is used for receiving the test process and the test result sent by the fan control module in real time and displaying the test process and the test result.
And the fan control module receives the selected test process sent by the reliability test control module, controls the fan to operate according to the test process, collects the operating state of the fan, judges whether the reliability of the fan is qualified or not, and sends the test process and the test result to the reliability test control module in real time.
Furthermore, the fan control module is an air conditioner main board.
By developing a special test program and matching a special reliability test control module, the whole automatic test process of the fan is completed by utilizing the existing fan control module, and the test process and the test conclusion are output in real time, so that whether the current state of the fan meets the reliability requirement is judged, and the aim of automatic test is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow chart of an automatic testing method for fan reliability;
fig. 2 is a schematic structural diagram of an automatic testing device for fan reliability.
Description of reference numerals: 1-reliability test control module; 2-a fan control module; and 3, a fan.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
An automatic test method for fan reliability comprises the following steps:
and S100, receiving the selected test process type, and sending the selected test process to the fan control module by the reliability test control module.
The test process comprises specific test steps corresponding to the selected test process type, the test process is divided into a plurality of types, such as forward rotation stability test, reverse rotation stability test, starting performance test and the like, and the test process can be added according to actual requirements. The specific steps of each test process are edited in the reliability test module, and the specific steps of each test process can be changed according to actual needs.
And S200, controlling the fan to perform reliability test by the fan control module according to the received test process, judging whether the fan is qualified, and sending the test process and the test result to the reliability test control module in real time.
Step S210: and (5) testing the forward rotation stability.
The fan control module records the forward rotation running time and the real-time rotating speed of the fan, and the interval time T of forward rotation is passedInterval of positive rotationChanging the target rotation speed of the fan, if the absolute value of the difference between the target rotation speed and the real-time rotation speed is greater than the rotation speed judgment threshold, i.e. | target rotation speed-real-time rotation speed |>And judging the threshold value by the rotating speed, or judging that the fan is unqualified if the fan driving fault occurs in the testing period.
And the fan control module sends the current test process and the test result to the reliability test control module in real time.
In the forward rotation stability test, the forward rotation interval time TInterval of positive rotationIs 10 min; the target rotating speed is 100 revolutions at minimum, 50 revolutions are increased for each change, and the maximum rotating speed is 1200 revolutions; the rotation speed determination threshold is 10 revolutions.
Step S220: and (5) carrying out inversion stability test.
The fan control module records the reverse rotation running time and the real-time rotating speed of the fan, and the reverse rotation interval time T is passedReversal intervalChanging the target rotation speed of the fan, if the absolute value of the difference between the target rotation speed and the real-time rotation speed is greater than the rotation speed judgment threshold, i.e. | target rotation speed-real-time rotation speed |>And judging the threshold value by the rotating speed, or judging that the fan is unqualified if the fan driving fault occurs in the testing period.
And the fan control module sends the current test process and the test result to the reliability test control module in real time.
In the inversion stability test, the inversion interval time TReversal intervalIs 10 min; the target rotating speed is 100 revolutions at minimum, 50 revolutions are increased for each change, and the maximum rotating speed is 1200 revolutions; the rotation speed determination threshold is 10 revolutions.
Step S230: a performance test is initiated.
The fan control module records the starting time, the shutdown time and the real-time rotating speed of the fan, and the running starting time T of the fanOpening deviceThen the fan is turned off, and the fan maintains the shutdown time TClosing deviceThen, the steps are repeatedly executed until the switching times reach the starting time threshold value, and if the real-time wind speed reaches the time of the set wind speed>And judging that the fan is unqualified if the speed-up time threshold value or the fan driving fault occurs during the test.
And the fan control module sends the current test process and the test result to the reliability test control module in real time.
Starting time T in the starting performance testOpening deviceIs 3min, shutdown time TClosing deviceFor 1min, the threshold value of the starting times is 30 times, and the threshold value of the speed-up time is 20 s.
In the step S200, three common test processes of the fan are enumerated and specific test steps are given, and the types of the test processes can be increased according to actual requirements.
According to a test program preset in the reliability test control module, a test process is freely selected, automatic test of the reliability of the fan is achieved, the test step is completely and automatically controlled by the program, compared with manual control, a large amount of test preparation time is saved, repeated test errors are small, accuracy is high, and test efficiency and test accuracy are greatly improved.
The steps S210, S220, and S230 are applicable to an outdoor unit fan.
The outdoor unit fan and the indoor unit fan have different working processes, so the specific test steps of the test process are different.
Step S300, the reliability test control module receives and displays the current test process and the test result.
The reliability test control module displays the test process and the test result in real time, and the experimenter rapidly judges whether the sample is qualified according to the displayed result, so that the screening time of a large number of samples is shortened, and the detection efficiency is improved.
Example 2
An automatic testing device for fan reliability, comprising:
and the reliability test control module 1 receives the selected test process type, sends the selected test process to the fan control module 2, and receives and displays the test process and the test result sent by the fan control module 2 in real time.
And the fan control module 2 receives the selected test process sent by the reliability test control module 1, controls the fan 3 to operate according to the test process, collects the operating state of the fan, judges whether the reliability of the fan is qualified or not, and sends the test process and the test result to the reliability test control module 1 in real time.
And the fan control module 2 is an air conditioner mainboard.
By developing a special test program and matching a special reliability test control module, the whole automatic test process of the fan is completed by utilizing the existing fan control module, and the test process and the test conclusion are output in real time, so that whether the current state of the fan meets the reliability requirement is judged, and the aim of automatic test is fulfilled.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The automatic testing device for the reliability of the fan disclosed in embodiment 2 corresponds to the automatic testing method for the reliability of the fan disclosed in embodiment 1, so that the description is relatively simple, and the relevant points can be referred to the description of the method part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An automatic test method for fan reliability is characterized by comprising the following steps:
step S100, receiving the selected test process type, and sending the selected test process to a fan control module by a reliability test control module;
step S200, the fan control module controls the fan to carry out reliability test according to the received test process, judges whether the fan is qualified or not, and sends the test process and the test result to the reliability test control module in real time;
and step S300, the reliability test control module receives and displays the current test process and the test result.
2. The method for automatically testing the reliability of the wind turbine according to claim 1, wherein the test process comprises specific test steps corresponding to the selected test process type.
3. The method for automatically testing the reliability of the wind turbine according to claim 1, wherein the step S200 comprises: one or more of a forward rotation stability test, a reverse rotation stability test, and a start-up performance test.
4. The automatic test method for the reliability of the fan according to claim 3, wherein the forward rotation stability test or the reverse rotation stability test comprises the following steps: the fan control module records the running time and the real-time rotating speed of forward rotation or reverse rotation of the fan, and the interval time T is set every time the fan rotates forwardsInterval of positive rotationOr the reversal interval time TReversal intervalChanging the target rotation speed of the fan, if the absolute value of the difference between the target rotation speed and the real-time rotation speed is greater than the rotation speed judgment threshold, i.e. | target rotation speed-real-time rotation speed |>And judging the threshold value by the rotating speed, or judging that the fan is unqualified if the fan driving fault occurs in the testing period.
5. The method of claim 4, wherein the forward rotation interval time T is a time TInterval of positive rotationIs 10 min; the reversal interval time TReversal intervalIs 10 min; the minimum target rotating speed is 100 revolutions, 50 revolutions are increased for each change, and the maximum target rotating speed is 1200 revolutions; the rotation speed determination threshold is 10 revolutions.
6. The method for automatically testing the reliability of the fan according to claim 3, wherein the starting performance test comprises the following steps: the fan control module records the starting time, the shutdown time and the real-time rotating speed of the fan, and the running starting time T of the fanOpening deviceThen the fan is turned off, and the fan maintains the shutdown time TClosing deviceThen, the steps are repeatedly executed until the switching times reach the starting time threshold value, and if the real-time wind speed reaches the time of the set wind speed>And judging that the fan is unqualified if the speed-up time threshold value or the fan driving fault occurs during the test.
7. The method according to claim 6, wherein the starting time T isOpening deviceThe time is 3min, and the time is,the shutdown time TClosing deviceThe time is 1min, the starting time threshold is 30 times, and the speed-up time threshold is 20 s.
8. The method of any one of claims 3-7, wherein the fan is an outdoor fan.
9. The utility model provides an automatic testing arrangement of fan reliability which characterized in that includes:
the reliability test control module is used for receiving the selected test process type and sending the selected test process to the fan control module; and the test device is used for receiving the test process and the test result sent by the fan control module in real time and displaying the test process and the test result.
And the fan control module receives the selected test process sent by the reliability test control module, controls the fan to operate according to the test process, collects the operating state of the fan, judges whether the reliability of the fan is qualified or not, and sends the test process and the test result to the reliability test control module in real time.
10. The automatic testing device for the reliability of the fan according to any one of claims 9, wherein the fan control module is an air conditioner main board.
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| CN201911184437.4A CN111075743A (en) | 2019-11-27 | 2019-11-27 | Automatic test method and test device for fan reliability |
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