CN111257674A - Test system of converter - Google Patents
Test system of converter Download PDFInfo
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- CN111257674A CN111257674A CN202010105699.3A CN202010105699A CN111257674A CN 111257674 A CN111257674 A CN 111257674A CN 202010105699 A CN202010105699 A CN 202010105699A CN 111257674 A CN111257674 A CN 111257674A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
Abstract
The invention discloses a test system of a frequency converter, wherein a processor in the test system can send a control instruction to a control board to be tested, can judge whether the control board to be tested is qualified or not according to a voltage value of the output end of the control board to be tested, which is detected by a first voltage sensor, and prompts the judgment result through a prompter, so that manual participation is not needed in the whole process, the manpower is liberated, and the working efficiency and the accuracy are improved.
Description
Technical Field
The invention relates to the field of frequency converters, in particular to a test system of a frequency converter.
Background
The quality of converter directly relates to the value of itself and the trust degree in market, consequently when the converter is produced, just involve the test work to control panel in the converter, the converter can link to each other with the motor and supply power for the motor when in actual use, the control panel can respond to control command and to the motor output with the voltage that control command corresponds, so that realize the control to the motor, the test to the control panel in the converter among the prior art is manual test usually, the staff at first need send control command to the control panel through the treater, then the staff can detect the voltage value of the output of control panel, and whether qualified through the voltage value verification control panel, because the manual work needs to participate in a large amount of work, work efficiency, still cause the misdetection easily.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a test system of a frequency converter, which does not need manual participation in the whole process, liberates manpower and improves the working efficiency and accuracy.
In order to solve the above technical problem, the present invention provides a test system for a frequency converter, including:
the first voltage sensor is connected with the control panel to be detected and is used for detecting the voltage value of the output end of the control panel to be detected;
the processor is connected with the control board to be detected and the first voltage sensor and is used for sending a control instruction to the control board to be detected, judging whether the control board to be detected is qualified or not according to the voltage value of the output end of the control board to be detected after the control instruction is sent, and controlling a prompter to prompt a judgment result;
the prompter;
and the power supply is connected with the control panel to be tested and the processor respectively and is used for supplying power to the control panel to be tested and the processor.
Preferably, the test system of the frequency converter further comprises:
the second voltage sensor is arranged at a preset position in the control panel and connected with the processor and is used for detecting the voltage value of the preset position;
the processor is further configured to determine whether the voltage value at the preset position is equal to a preset value before sending a control instruction to the control panel to be tested;
if so, sending a control instruction to the control panel to be tested;
otherwise, prompting that the voltage value of the preset position is unqualified.
Preferably, the first voltage sensor and the second voltage sensor are both original voltage sensors inside the control board to be tested.
Preferably, the test system of the frequency converter further comprises:
and the crimping device is connected with the processor and is used for connecting the control instruction input end of the control board to be tested, the output end of the first voltage sensor and the output end of the second voltage sensor to the processor.
Preferably, the crimping device includes:
the thimble with a first end connected with the processor and a second end suspended in the air is used for realizing signal connection between the processor and the control instruction input end of the control panel to be tested, the output end of the first voltage sensor and the output end of the second voltage sensor;
the first end of the connecting rod is connected with the operating rod and used for changing the position of the control plate to be tested, which is fixed at the second end of the connecting rod, under the driving of the operating rod;
the fixing device is respectively connected with the second end of the connecting rod and the control panel to be tested and is used for fixing the control panel to be tested at the second end of the connecting rod;
the operating rod is used for driving the connecting rod through the operating rod, and the control instruction input end of the control board to be detected, the output end of the first voltage sensor and the output end of the second voltage sensor are connected to the ejector pin.
Preferably, the operating lever is embodied as a handle.
Preferably, the test system of the frequency converter further comprises:
and the human-computer interaction device is connected with the processor and used for triggering the processor to start a detection process.
Preferably, the human-computer interaction device and the prompter form a whole touch screen.
Preferably, the control instruction includes a high level and a low level;
the step of judging whether the control board to be detected is qualified according to the voltage value of the output end of the control board to be detected specifically comprises the following steps:
judging whether the voltage value of the output end of the control board to be tested is the same as the theoretical voltage reference value corresponding to the control instruction or not;
if yes, judging that the control board to be detected is qualified;
otherwise, judging that the control board to be tested is unqualified.
Preferably, the test system of the frequency converter further comprises:
and the control switch is arranged between the power supply and the control panel to be tested and is used for controlling the on-off of the power supply loop of the control panel to be tested.
The invention provides a test system of a frequency converter, which is characterized in that a processor in the test system can send a control instruction to a control board to be tested, can judge whether the control board to be tested is qualified or not according to a voltage value of the output end of the control board to be tested, which is detected by a first voltage sensor, and prompts the judgment result through a prompter, so that manual participation is not needed in the whole process, the manpower is liberated, and the working efficiency and the accuracy are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test system of a frequency converter provided in the present invention;
fig. 2 is a schematic structural diagram of another frequency converter testing system provided by the present invention.
Detailed Description
The core of the invention is to provide a test system of the frequency converter, which does not need manual participation in the whole process, liberates manpower and improves the working efficiency and accuracy.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a test system of a frequency converter provided in the present invention, the test system of the frequency converter includes:
the first voltage sensor 1 is connected with the control panel to be detected and is used for detecting the voltage value of the output end of the control panel to be detected;
the processor 2 is connected with the control board to be detected and the first voltage sensor 1 and is used for sending a control instruction to the control board to be detected, judging whether the control board to be detected is qualified or not according to the voltage value of the output end of the control board to be detected after the control instruction is sent, and controlling the prompter 3 to prompt a judgment result;
a prompter 3;
and the power supply 4 is respectively connected with the control panel to be tested and the processor 2 and is used for supplying power to the control panel to be tested and the processor 2.
Specifically, the processor 2 in the embodiment of the present invention may send a control instruction to the control board to be tested, so that the control board to be tested may output a voltage value corresponding to the control instruction after receiving the control instruction (theoretically), and compared with the prior art in which a worker needs to measure the voltage value at the output end of the control board to be tested through a tool, the processor 2 in the embodiment of the present invention may detect the voltage value at the output end of the control board to be tested through the first voltage sensor 1, and the processor 2 may judge whether the control board to be tested is qualified according to the voltage value, and does not need manual participation in the whole process, which not only saves manpower, but also improves work efficiency and accuracy.
The processor 2 can acquire the voltage value of the output end of the control board to be tested after the preset time length after the control instruction is sent, so that the acquired voltage value is ensured to be the voltage value output by the control board to be tested in response to the control instruction, and the accuracy of the test is improved.
The preset time period may be set autonomously, for example, 1s, and the embodiment of the present invention is not limited herein.
The processor 2 may be of various types, such as an ARM processor 2, and the embodiment of the present invention is not limited herein.
Specifically, the prompter 3 may prompt the voltage value at the output end of the control board to be tested under the control of the processor 2, so that the worker checks the judgment result, at this time, if the processor 2 itself cannot generate a data format matched with the prompter 3, a format conversion module may be additionally added, and the format conversion module may convert the voltage value obtained by the processor 2 into a data format required by the prompter 3, where the format conversion module may be of various types, such as a PLC (Programmable Logic Controller), and the like, and the embodiment of the present invention is not limited herein.
The invention provides a test system of a frequency converter, which is characterized in that a processor in the test system can send a control instruction to a control board to be tested, can judge whether the control board to be tested is qualified or not according to a voltage value of the output end of the control board to be tested, which is detected by a first voltage sensor, and prompts the judgment result through a prompter, so that manual participation is not needed in the whole process, the manpower is liberated, and the working efficiency and the accuracy are improved.
On the basis of the above-described embodiment:
for better explaining the embodiment of the present invention, please refer to fig. 2, fig. 2 is a schematic structural diagram of another frequency converter testing system provided by the present invention, and as a preferred embodiment, the frequency converter testing system further includes:
a second voltage sensor 5 connected with the processor 2 and arranged at a preset position in the control panel is used for detecting the voltage value of the preset position;
the processor 2 is further configured to determine whether the voltage value at the preset position is equal to a preset value before sending the control instruction to the control board to be tested;
if so, sending a control instruction to the control panel to be tested;
otherwise, the voltage value at the preset position is prompted to be unqualified.
Specifically, after the control board to be tested is powered on, the voltage values at multiple positions of the control board to be tested usually show fixed values, for example, multiple positions including +5V, +10V, + 15V, ± 15V, 25V, and 3.3V, and only if the voltage values at these positions are normal, the voltage values at these positions can represent that the control board to be tested is initially normal, and subsequent tests can be performed.
The preset position may be a plurality of positions, such as +5V, +10V, + 15V, 25V, and 3.3V, and the embodiment of the present invention is not limited herein.
In a preferred embodiment, the first voltage sensor 1 and the second voltage sensor 5 are both original voltage sensors inside the control board to be tested.
Specifically, the cost can be saved by adopting the original voltage sensor inside the control board to be tested as the first voltage sensor 1 and the second voltage sensor 5, and the accuracy of the original voltage sensor inside the control board to be tested is higher.
Of course, the first voltage sensor 1 and the second voltage sensor 5 may be external independent voltage sensors besides the original voltage sensor inside the control board to be tested, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the test system of the frequency converter further includes:
and the crimping device 6 is connected with the processor 2 and is used for connecting the control instruction input end of the control board to be tested, the output end of the first voltage sensor 1 and the output end of the second voltage sensor 5 to the processor 2.
Specifically, the test system of the frequency converter in the embodiment of the invention can test different control boards to be tested, so that after one of the control boards to be tested is tested, other control boards to be tested need to be installed for testing, and therefore, the wiring problem of the control boards to be tested is involved.
As a preferred embodiment, the crimping device 6 includes:
the thimble with a first end connected with the processor 2 and a second end suspended in the air is used for realizing signal connection between the processor 2 and the control instruction input end of the control panel to be tested, the output end of the first voltage sensor 1 and the output end of the second voltage sensor 5;
the first end of the connecting rod is connected with the operating rod and used for changing the position of the control plate to be tested, which is fixed on the second end of the connecting rod under the driving of the operating rod;
the fixing device is respectively connected with the second end of the connecting rod and the control panel to be detected and is used for fixing the control panel to be detected at the second end of the connecting rod;
and the operating rod is used for driving the connecting rod through the operating rod, and connecting the control instruction input end of the control board to be tested, the output end of the first voltage sensor 1 and the output end of the second voltage sensor 5 to the thimble.
Specifically, the first end of the thimble can be connected with the processor 2, the first end of the thimble can be connected with the control instruction output end and the voltage value detection end of the processor 2, respectively, and the user can drive the connecting rod through the operating rod, so as to move the control panel to be tested on the connecting rod, so as to connect the control instruction input end on the control panel to be tested, the output end of the first voltage sensor 1 and the output end of the second voltage sensor 5 to the second end of the thimble, wherein, the thimble can be multiple in general, for example, the first thimble is used for connecting the control instruction output end of the processor 2 and the control instruction input end on the control panel to be tested, the second thimble can be used for connecting the first voltage value detection end of the processor 2 and the output end of the first voltage sensor 1, the third thimble can be used for connecting the second voltage value detection end of the processor 2 and the output end of the second voltage sensor 5, therefore, the connection between the processor 2 and each corresponding pin of the control board to be tested is realized, which is not limited in the embodiment of the present invention.
The connecting rod may be made of various materials, and the embodiment of the present invention is not limited herein.
The thimble may be of various types, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the operating lever is embodied as a handle.
Specifically, the handle has advantages of small volume, convenient use, low cost and the like.
Of course, the operating rod may be of other types besides the handle, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the test system of the frequency converter further includes:
and the human-computer interaction device 7 is connected with the processor 2 and used for triggering the processor 2 to start a detection process.
Specifically, in order to facilitate the control of the worker on the start of the whole test process, the human-computer interaction device 7 is arranged in the embodiment of the invention, the worker can control the processor 2 to start the detection process after the control board to be tested is connected, and then the processor 2 can execute the test process, so that the controllability and the reliability of the test process are enhanced.
Considering that different types of control boards have different output voltage values in response to a control instruction, before starting a test, a worker may set theoretical voltage reference values in the processor 2 through the human-computer interaction device 7 in the embodiment of the present invention, the specific setting process may be multiple, and for convenience, theoretical voltage reference values of multiple different types of control boards may be pre-stored in the processor 2, and when testing a certain type of control board, the type of the control board to be tested only needs to be selected through the human-computer interaction device 7, and the processor 2 may test the control board to be tested according to the theoretical voltage reference value corresponding to the selected type of control board, which is not limited herein.
In a preferred embodiment, the human-computer interaction device 7 and the prompter 3 are integrated into a touch screen.
Specifically, the touch screen has the advantages of small volume, visual prompt, convenience in operation and the like.
Of course, the human-computer interaction device 7 and the prompter 3 may be of other types besides the touch screen, and the embodiment of the present invention is not limited herein.
As a preferred embodiment, the control command includes a high level and a low level;
whether the control panel to be tested is qualified or not is judged according to the voltage value of the output end of the control panel to be tested, and the judgment is specifically as follows:
judging whether the voltage value of the output end of the control board to be tested is the same as the theoretical voltage reference value corresponding to the control instruction or not;
if yes, judging that the control board to be detected is qualified;
otherwise, judging that the control board to be tested is unqualified.
Specifically, the control instruction can be high level and low level usually, and in response to different control instructions, the control panel to be tested can output different voltage values, for example, in response to the high level, a voltage value of 3.5V can be output, and the like.
Of course, the control command may be of other types besides high and low levels, and the embodiment of the present invention is not limited herein.
The theoretical voltage reference value may be various, and is related to the type of the control board to be tested and also related to the control command.
As a preferred embodiment, the test system of the frequency converter further includes:
and the control switch 8 is arranged between the power supply 4 and the control panel to be tested and is used for controlling the on-off of the power supply loop of the control panel to be tested.
Specifically, considering that after the test is finished, the power supply 4 of the control board to be tested is usually required to be disconnected so as to detach the control board to be tested, and at this time, the power supply 4 of the processor 2, the prompter 3 and the like is not required to be disconnected, therefore, the control switch 8 arranged between the power supply 4 and the control board to be tested is arranged in the embodiment of the invention, the power supply of the control board to be tested can be quickly and safely disconnected through the control switch 8 so as to safely detach the control board to be tested, meanwhile, a worker can also see related test data through the prompter 3, and analysis of the test data on the prompter 3 by the.
The control switch 8 may be of various types, for example, a knife switch, and the like, and the embodiment of the present invention is not limited herein.
It is worth mentioning that, in order to improve the test system's of converter in this application wholeness, can set up a shell, the shell can become a whole with each part fixed among the above test system, has improved the test system's of converter wholeness.
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.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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. A test system for a frequency converter, comprising:
the first voltage sensor is connected with the control panel to be detected and is used for detecting the voltage value of the output end of the control panel to be detected;
the processor is connected with the control board to be detected and the first voltage sensor and is used for sending a control instruction to the control board to be detected, judging whether the control board to be detected is qualified or not according to the voltage value of the output end of the control board to be detected after the control instruction is sent, and controlling a prompter to prompt a judgment result;
the prompter;
and the power supply is connected with the control panel to be tested and the processor respectively and is used for supplying power to the control panel to be tested and the processor.
2. The test system for a frequency converter according to claim 1, further comprising:
the second voltage sensor is arranged at a preset position in the control panel and connected with the processor and is used for detecting the voltage value of the preset position;
the processor is further configured to determine whether the voltage value at the preset position is equal to a preset value before sending a control instruction to the control panel to be tested;
if so, sending a control instruction to the control panel to be tested;
otherwise, prompting that the voltage value of the preset position is unqualified.
3. The system for testing a frequency converter according to claim 2, wherein the first voltage sensor and the second voltage sensor are both original voltage sensors inside the control board to be tested.
4. The test system for a frequency converter according to claim 3, further comprising:
and the crimping device is connected with the processor and is used for connecting the control instruction input end of the control board to be tested, the output end of the first voltage sensor and the output end of the second voltage sensor to the processor.
5. The test system of a frequency converter according to claim 4, wherein the crimping device comprises:
the thimble with a first end connected with the processor and a second end suspended in the air is used for realizing signal connection between the processor and the control instruction input end of the control panel to be tested, the output end of the first voltage sensor and the output end of the second voltage sensor;
the first end of the connecting rod is connected with the operating rod and used for changing the position of the control plate to be tested, which is fixed at the second end of the connecting rod, under the driving of the operating rod;
the fixing device is respectively connected with the second end of the connecting rod and the control panel to be tested and is used for fixing the control panel to be tested at the second end of the connecting rod;
the operating rod is used for driving the connecting rod through the operating rod, and the control instruction input end of the control board to be detected, the output end of the first voltage sensor and the output end of the second voltage sensor are connected to the ejector pin.
6. The test system of a frequency converter according to claim 5, characterized in that the operating lever is embodied as a handle.
7. The test system for a frequency converter according to claim 1, further comprising:
and the human-computer interaction device is connected with the processor and used for triggering the processor to start a detection process.
8. The system for testing a frequency converter according to claim 7, wherein the human-computer interaction device and the prompter are integrated into a touch screen.
9. The test system of the frequency converter according to claim 1, wherein the control command comprises a high level and a low level;
the step of judging whether the control board to be detected is qualified according to the voltage value of the output end of the control board to be detected specifically comprises the following steps:
judging whether the voltage value of the output end of the control board to be tested is the same as the theoretical voltage reference value corresponding to the control instruction or not;
if yes, judging that the control board to be detected is qualified;
otherwise, judging that the control board to be tested is unqualified.
10. The system for testing a frequency converter according to any one of claims 1 to 9, further comprising:
and the control switch is arranged between the power supply and the control panel to be tested and is used for controlling the on-off of the power supply loop of the control panel to be tested.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105699.3A CN111257674A (en) | 2020-02-20 | 2020-02-20 | Test system of converter |
| PCT/CN2020/078521 WO2021164068A1 (en) | 2020-02-20 | 2020-03-10 | Test system for variable-frequency drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105699.3A CN111257674A (en) | 2020-02-20 | 2020-02-20 | Test system of converter |
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| CN111257674A true CN111257674A (en) | 2020-06-09 |
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| CN202010105699.3A Pending CN111257674A (en) | 2020-02-20 | 2020-02-20 | Test system of converter |
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| CN (1) | CN111257674A (en) |
| WO (1) | WO2021164068A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414996A (en) * | 2022-01-24 | 2022-04-29 | 武汉盛帆电子股份有限公司 | Automatic circuit detection method and device |
| CN114384317A (en) * | 2022-03-24 | 2022-04-22 | 北京合康新能变频技术有限公司 | High-voltage frequency converter and output voltage detection circuit and method thereof |
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