CN202929167U - Testing device for diagnosing and testing circuit board in electric drive device - Google Patents
Testing device for diagnosing and testing circuit board in electric drive device Download PDFInfo
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- CN202929167U CN202929167U CN 201220494563 CN201220494563U CN202929167U CN 202929167 U CN202929167 U CN 202929167U CN 201220494563 CN201220494563 CN 201220494563 CN 201220494563 U CN201220494563 U CN 201220494563U CN 202929167 U CN202929167 U CN 202929167U
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Abstract
The utility model discloses a testing device for diagnosing and testing a circuit board in an electric drive device. According to the testing device of the utility model, the to-be-tested circuit board is installed on the surface of a frame, thereby greatly shortening dismounting time, providing convenience for measurement in testing points, enabling fault diagnosis to be simple and rapid, and improving working efficiency.
Description
Technical field
The utility model relates to the industrial drives field, is specifically related to a kind of for each circuit board of electric driver being carried out the proving installation of diagnostic test.
Background technology
In the industrial drives field, the various electric drivers of widespread use come drive motor to drive the machinery and equipment operation.Described electric driver includes but not limited to, one or more in frequency converter, inverter.In addition, there are various circuit boards in electric driver, such as input/sampling plate, control signal disposable plates, power model drive plate, control power panel etc.Because usage quantity is huge, field working conditions is complicated, and lacks aging that maintenance occurs, and inevitably some faults can occur.Can how to judge accurately and rapidly the circuit board that has fault, and repair or replace, be improve the reliability of equipment and the key of work efficiency, is also problem in the urgent need to address.
At present, when the circuit board in electric driver being carried out the fault judgement, usually adopt Shift Method.Particularly, according to the fault that device occurs, carry out initial analysis, may there be the circuit board of fault in judgement and disassembles; By simple measurement and the personal experience of multimeter, then determine it is that in this plate of replacing or continuation stripping assembly, other circuit boards are measured; And then utilize new circuit board, replace and be considered to the faulted circuit plate, the installation test.If fault is not eliminated, continue dismounting and replace, until test is passed through.
Yet can there be following problem in this method when circuit board is carried out diagnostic test:
At first, the dismounting of the circuit board in electric driver and installation are all wasted time and energy.Circuit board is usually inner at device, causes the measurement inconvenience to test point, brings difficulty to fault diagnosis.If accurately the failure judgement circuit board, need the repeated disassembled and assembled test, the manpower that therefore can cost a lot of money, efficient is extremely low.
Secondly, test electric driver, generally will start this electric driver, device starts and must satisfy the major loop DC bus-bar voltage and reach certain value and could start.This voltage is often higher, and the high voltage of major loop has brought potential danger to survey crew.In addition, if the faulty circuit plate is not replaced fully, when power model is worked under high voltage, cause possibly expensive power device (such as IGBT) damaged, cause very large loss.
The 3rd, electric driver is all with large capacitor group, and is may emergent power module upper and lower bridge arm straight-through in the situation that there is the faulty circuit plate in device, thereby causes the energy abrupt release of storing on the capacitor group, causes power model to damage.In addition, though large capacitor group after outage, also needing waits for a period of time makes it discharge into that safe voltage is following could be dismantled, disassembly and assembly time is long, efficient is low.
At last, if utilize the electric driver direct-driving motor to test, when breaking down, can not judge accurately that sometimes motor has problems or device itself has problem.If there is fault device in itself, motor rotation blockage may appear, and the situations such as vibrations may be damaged motor when serious in addition.
Therefore, expectation provides a kind of technical scheme of can be safely, efficiently the circuit board in electric driver being tested, thereby improves maintenance efficiency and the reliability of commercial unit.
The utility model content
In view of this, the utility model proposes a kind of proving installation that the circuit board of electric driver is carried out diagnostic test, its can safety and efficiently ground the circuit board in electric driver is diagnosed and is tested, increase work efficiency.
According to an embodiment of the present utility model, a kind of proving installation that circuit board in electric driver is carried out diagnostic test has been proposed, comprise frame, it is characterized in that, also be included in the following assembly of arranging on frame: power model; And the AC/DC rectification unit, its input end is connected to alternating-current voltage source, and its output terminal is connected to the dc bus of power model; Wherein, reserve the installation site for circuit board to be tested on described frame, made circuit board to be tested be installed on described frame to be formed for driving the control loop of described power model.
Preferably, according to an embodiment of the present utility model, also arrange load unit on described frame, be connected to the output terminal of described power model.
Preferably, according to an embodiment of the present utility model, described alternating-current voltage source is the 220V alternating-current voltage source.
Preferably, according to embodiment of the present utility model, described load unit is resistive load or inductive load.
Preferably, according to an embodiment of the present utility model, described resistive load is a plurality of bulbs of Y-connection.
Preferably, according to an embodiment of the present utility model, also be furnished with the voltage multiplying rectifier unit on described frame, the input end of described voltage multiplying rectifier unit connects described alternating-current voltage source, and its output terminal detects loop output for the required DC voltage of starting power module to DC bus-bar voltage.
Preferably, according to an embodiment of the present utility model, the DC voltage of described voltage multiplying rectifier unit output is 600V.
Preferably, according to an embodiment of the present utility model, do not arrange the capacitor for the direct current intermediate link of power model on described frame.
Preferably, according to an embodiment of the present utility model, described each circuit board to be tested comprises at least one in the control power panel of control signal disposable plates, electric driver of detection signal change-over panel, the electric driver of power model drive plate, the electric driver of electric driver.
Preferably, according to an embodiment of the present utility model, be provided with a plurality of draw-in grooves or hole on described frame, described each circuit board to be tested is arranged on described frame with surperficial mounting means.
Preferably, according to an embodiment of the present utility model, also be furnished with one or more cable interfaces on described frame, in order to be connected to for the display panel of man-machine interaction and at least one of PC.
Preferably, according to an embodiment of the present utility model, described electric driver comprises at least one in frequency converter or inverter.
According to proving installation of the present utility model, owing to utilizing frame to arrange circuit board under test with surperficial mounting means, shortened greatly disassembly and assembly time, and facilitated the measurement of test point, make the fault diagnosis simple and fast that becomes, improved work efficiency.
In addition, due to dc bus major loop and the separately power supply of measuring circuit of power model, reduced on the one hand the operating voltage of major loop, can also satisfy on the other hand the startup requirement of device, not only reduce the danger of tester when test, made test safer.
In addition, due to the mode that has adopted without dc-link capacitance, the fault current that has produced when having reduced the upper and lower bridge arm shoot through of emergent power module has effectively prevented the damage of power device, has saved testing cost.
Simultaneously, use a plurality of bulbs of Y-connection to replace the load of alternating current generator as power model, utilize the voltage and current measurement to resistive load, can reflect simply really the working condition of circuit board, the stall of also having avoided the translator test to occur, the problems such as vibrations.
And, according to proving installation of the present utility model, adopt the 220V alternating voltage as power supply, lower to the power requirement of test site, easy to use.
Description of drawings
The below will make clearer above-mentioned and other feature and advantage of the present utility model of those of ordinary skill in the art by describing preferred embodiment of the present utility model in detail with reference to accompanying drawing, in accompanying drawing:
Fig. 1 illustrates the schematic diagram according to the primary structure of the proving installation of an embodiment of the present utility model;
Fig. 2 illustrates the schematic diagram according to the primary structure of the proving installation of another embodiment of the present utility model;
Fig. 3 illustrates the schematic diagram according to the primary structure of the proving installation of the another embodiment of the utility model;
Fig. 4 illustrates according to the schematic diagram of the primary structure of the proving installation of an embodiment more of the present utility model; And
Fig. 5 illustrates the main topological structure connection diagram according to the power model in proving installation of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is further elaborated.
Referring to Fig. 1, comprise frame 1 according to the proving installation of an embodiment of the present utility model, arranged AC/DC rectification unit 2, power model 3 on frame 1.Preferably, according to another embodiment of the present utility model, load unit can also be arranged, as shown in Figure 2 on frame.Wherein, a plurality of draw-in grooves or hole (not illustrating in the drawings) can be set on frame 1, be convenient to each assembly of installing on it is changed, and frame 1 can adopt the form of backboard or base plate.According to an embodiment of the present utility model, reserved the installation site for each circuit board to be tested on frame, make circuit board to be tested be installed on described frame to be formed for driving the control loop of described power model.Preferably, frame 1 is enough large, in order to hold the formed control loop of the circuit board that is necessary for the required electric driver of driving power module.Utilize above-mentioned a plurality of draw-in groove or hole, can be on frame arrange each circuit board in electric driver with surperficial mounting means.As required, can select at any time to change the circuit board that to test.Wherein, each circuit board in electric driver can include but not limited to, detection/sampled signal change-over panel 51, control signal disposable plates 52, power model drive plate 53, control power panel 54.Only with each above-mentioned circuit board as example, set forth the technical solution of the utility model.For example, the various signals that 51 detections of detection/sampled signal plate and sampling are relevant with electric driver, such as the DC voltage that is input to dc bus, the electric current of power model output, temperature of power model etc., carry out sending into control signal disposable plates 52 after necessary processing; The signals such as electric current and voltage of 52 pairs of feedbacks of control signal disposable plates carry out various processing, calculate corresponding steering order, and output it to power model drive plate 53; Power model drive plate 53 receives the pwm signal from control signal disposable plates 52, process and amplify after send into the grid of power model so that the operation of power ratio control module; Controlling power panel 54 will be control voltage through the voltage transitions after the AC/DC rectifying conversion, such as ± 24V, ± 15V and ± 5V etc., offer other each circuit board as power supply.AC/DC rectification unit 2 also has been installed on frame 1, has been used for providing the major loop DC voltage to the dc bus of power model 3.The output terminal of power model 3 is connected to load unit 4, the AC voltage after the load unit 4 output inversions.
Preferably, according to an embodiment of the present utility model, AC/DC rectification unit 2 is not for controlling rectification unit, and its input power is 220V single-phase AC voltage source, exports the DC voltage of about 200V to the dc bus of power model 3.The power cell of considering some electric driver can produce the under-voltage warning when dc voltage is low, therefore those skilled in the art can adopt variety of way to shield this warning, for example, can utilize the control module of electric driver that the dry run function is set, perhaps utilize this under-voltage of hardware shield to report to the police, so that power cell normally moves.
Preferably, according to another embodiment of the present utility model, as shown in Figure 3, also be furnished with the voltage multiplying rectifier unit on frame, the input end of described voltage multiplying rectifier unit connects described 220V single-phase AC voltage source, its output terminal detects for DC bus-bar voltage the DC voltage that the loop provides 600V, and can avoid power model to produce under-voltage and report to the police, thus direct starting power module.In this embodiment, dc bus major loop and separately power supply of measuring circuit due to power model, reduced on the one hand the operating voltage of major loop, reduced the danger that may be subject to when the tester tests, and reduced the electric current of the dirty overpower module of nonserviceabling, guaranteed that power model is difficult for damaged, can also satisfy on the other hand the startup requirement of device, made test convenient.
Preferably, according to an embodiment of the present utility model, do not arrange the capacitor for the intermediate dc link of power model on frame.Adopt this mode without dc-link capacitance, the fault current that has produced when having reduced the upper and lower bridge arm shoot through of the power model that the faulty circuit plate may cause has effectively prevented the damage of power device.Simultaneously, owing to there not being large capacitor in major loop, there is no the discharge process of electric capacity, do not need to wait for when conversion testing to discharge and complete, improved testing efficiency.
Preferably, according to another embodiment of the present utility model, utilize three bulbs of Y-connection to replace common alternating current generator as the load of power model.The voltage and current measurement of utilization to resistive load, by measuring the voltage current waveform on bulb, whether work that can the decision circuitry plate is normal.Simultaneously, can also find out intuitively the size of output load current by the bright dark degree of bulb.The working condition that can reflect simply truly the circuit board to be tested of electric driver, the stall of having avoided again the translator test to occur, the problems such as vibrations.
Preferably, in embodiment of the present utility model, can dispose one or more cable interfaces such as Ethernet interface, USB interface on control module 3 or frame 1, perhaps wave point, so that wire/wireless is connected on relevant display panel or PC, makes and to show the off status parameter or for the tester, relevant controlling parameters to be set to the tester.
Preferably, can also arrange analog or digital display instrument on frame, in order to directly show output current or voltage and other parameters of power model.
Preferably, according to embodiment of the present utility model, can arrange heat abstractor on frame, blower fan for example is in order to carry out cooling heat dissipation to the heat generating component on frame.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a proving installation that the circuit board in electric driver is carried out diagnostic test, comprise frame, it is characterized in that, also is included in the following assembly of arranging on frame:
Power model; And
The AC/DC rectification unit, its input end is connected to alternating-current voltage source, and its output terminal is connected to the dc bus of power model;
Wherein, reserve the installation site for circuit board to be tested on described frame, made circuit board to be tested be installed on described frame to be formed for driving the control loop of described power model.
2. proving installation according to claim 1, is characterized in that, also arranged load unit on described frame, is connected to the output terminal of described power model.
3. proving installation according to claim 1, is characterized in that, described alternating-current voltage source is the 220V alternating-current voltage source.
4. proving installation according to claim 2, is characterized in that, described load unit is resistive load or inductive load.
5. proving installation according to claim 4, is characterized in that, described resistive load is a plurality of bulbs of Y-connection.
6. proving installation according to claim 3, it is characterized in that, also be furnished with the voltage multiplying rectifier unit on described frame, the input end of described voltage multiplying rectifier unit connects described alternating-current voltage source, and its output terminal detects loop output for the required DC voltage of starting power module to DC bus-bar voltage.
7. proving installation according to claim 6, is characterized in that, the DC voltage of described voltage multiplying rectifier unit output is 600V.
8. according to claim 1-7 described proving installations of any one, is characterized in that, do not arrange the capacitor for the direct current intermediate link of power model on described frame.
9. according to claim 1-7 described proving installations of any one, it is characterized in that, described circuit board to be tested comprises at least one in the control power panel of control signal disposable plates, electric driver of detection signal change-over panel, the electric driver of power model drive plate, the electric driver of electric driver.
10. the described proving installation of any one according to claim 1-7, is characterized in that, be provided with a plurality of draw-in grooves or hole on described frame, described circuit board to be tested is arranged on described frame with surperficial mounting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494563 CN202929167U (en) | 2012-09-25 | 2012-09-25 | Testing device for diagnosing and testing circuit board in electric drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494563 CN202929167U (en) | 2012-09-25 | 2012-09-25 | Testing device for diagnosing and testing circuit board in electric drive device |
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| Publication Number | Publication Date |
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| CN202929167U true CN202929167U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220494563 Expired - Fee Related CN202929167U (en) | 2012-09-25 | 2012-09-25 | Testing device for diagnosing and testing circuit board in electric drive device |
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| CN (1) | CN202929167U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614626A (en) * | 2015-02-17 | 2015-05-13 | 北京精密机电控制设备研究所 | Detection tool used for servo system power plate and detection method |
| CN105938186A (en) * | 2015-03-04 | 2016-09-14 | 西门子工业公司 | Apparatus and method for field testing electrical panel meter system |
| CN112924842A (en) * | 2019-12-05 | 2021-06-08 | 沈机（上海）智能系统研发设计有限公司 | Step-down test topology circuit, test system/method, and storage medium |
| CN113466655A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Test equipment and method for testing single board |
| CN113533930A (en) * | 2020-04-22 | 2021-10-22 | 华为技术有限公司 | Single board testing device and method |
-
2012
- 2012-09-25 CN CN 201220494563 patent/CN202929167U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614626A (en) * | 2015-02-17 | 2015-05-13 | 北京精密机电控制设备研究所 | Detection tool used for servo system power plate and detection method |
| CN105938186A (en) * | 2015-03-04 | 2016-09-14 | 西门子工业公司 | Apparatus and method for field testing electrical panel meter system |
| CN105938186B (en) * | 2015-03-04 | 2020-01-14 | 西门子工业公司 | Apparatus and method for field testing of electrical panel instrumentation systems |
| CN112924842A (en) * | 2019-12-05 | 2021-06-08 | 沈机（上海）智能系统研发设计有限公司 | Step-down test topology circuit, test system/method, and storage medium |
| CN113466655A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Test equipment and method for testing single board |
| CN113533930A (en) * | 2020-04-22 | 2021-10-22 | 华为技术有限公司 | Single board testing device and method |
| CN113533930B (en) * | 2020-04-22 | 2023-04-04 | 华为技术有限公司 | Single board testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180925 |