CN207832955U - A kind of IGBT on-line measuring devices - Google Patents
A kind of IGBT on-line measuring devices Download PDFInfo
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- CN207832955U CN207832955U CN201721880674.0U CN201721880674U CN207832955U CN 207832955 U CN207832955 U CN 207832955U CN 201721880674 U CN201721880674 U CN 201721880674U CN 207832955 U CN207832955 U CN 207832955U
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- shell
- igbt
- connecting terminal
- measuring devices
- signal generator
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Abstract
The purpose of the utility model is to provide a kind of IGBT on-line measuring devices,Including the built-in detection circuit of shell and shell,Housing side is equipped with AC220V connecting terminals and DC12V connecting terminals,It is respectively provided with control handle on shell front panel,Current strength observer and for the connecting terminal A to detected device,K,G,The detection circuit includes the pulse signal generator in shell,Waveshape detector,Synchro source,AC/DC converters,The waveshape detector with synchro source and in postlaminar part before shell and control handle are connected pulse signal generator respectively,The utility model is simple in structure,Novel and unique,It is small,It carries easy to use,Detected device can be detected,On-line checking can be carried out again,Detection speed is fast,It is efficient,Time is short,Save man power and material,There is very strong use value,Economic and social benefit is notable.
Description
Technical field
The utility model is related to instrument, especially a kind of IGBT on-line measuring devices.
Background technology
Frequency conversion and soft Starting Technology are arrived involved in modern mine, as modern frequency conversion and the extensive of soft Starting Technology are answered
With when original maintenance tool repairs it, especially to electronic switch component, such as insulated gateBipolar transistor
（IGBT）Performance quality at the scene cannot accomplish accurately to differentiate and identify, generally require carry out gug inspection to mine in this way
It repaiies, so not only repair is inconvenient, but also influences production.In view of this situation, developing one kind can be split at the scene
It closes device and carries out quickly and effectively detecting instrument, seemed very necessary with improving repair quality and efficiency.
The test generally use of current switching device measures after element is dismantled completely, and not only efficiency is low, but also
Heavy workload, the time is long, can not meet the detection rapidly and efficiently to IGBT, especially on-line checking, therefore, IGBT detection devices
On improvement and innovation it is imperative.
Utility model content
For the above situation, to overcome the defect of the prior art, it is online that the purpose of the utility model is to provide a kind of IGBT
Detection device can effectively solve the problem of the rapidly and efficiently especially on-line checking of the detection to IGBT.
The technical solution that the utility model solves is, including shell and the built-in detection circuit of shell, housing side are equipped with
AC220V connecting terminals and DC12V connecting terminals are respectively provided with control handle, current strength observer and use on shell front panel
In connecting terminal A, K, G to detected device, the detection circuit includes pulse signal generator, wave in shell
Shape detector, synchro source, AC/DC converters, pulse signal generator is respectively with synchro source and after shell front panel
Waveshape detector and control handle in portion are connected, and synchro source is connected with the AC220V connecting terminals on shell, synchro source
It is connected with the DC12V connecting terminals on shell through AC/DC converters, a connecting terminal of AC220V connecting terminals is strong through electric current
Degree observer is connected with the second connecting terminal K on panel, another connecting terminal and the first connecting terminal A phases on shell
Even, pulse signal generator is connected with the first connecting terminal A, the third connecting terminal G on shell, first connecting terminal
It is fitted on A for the first conductor grip to measured device on-line checking, is fitted on the second connecting terminal K for being tested device
Second conductor grip of part on-line checking is fitted with for the privates to measured device on-line checking on third connecting terminal G
Folder.
The utility model is simple in structure, novel and unique, small, and carrying is easy to use, can be carried out to detected device
Detection, and can carry out on-line checking, and detection speed is fast, efficient, and the time is short, save man power and material, have and very strong use valence
Value, economic and social benefit are notable.
Description of the drawings
Fig. 1 is the external perspective structure chart of the utility model；
Fig. 2 is that the circuit of the utility model connects frame figure.
Specific implementation mode
It elaborates to specific embodiment of the present utility model below in conjunction with attached drawing.
As shown in Figure 1, 2, a kind of IGBT on-line measuring devices, including shell 1 and the built-in detection circuit of shell 1, shell 1
Side is equipped with AC220V connecting terminals 8 and DC12V connecting terminals 2, and it is strong to be respectively provided with control handle 7, electric current on 1 front panel of shell
It spends observer 6 and for connecting terminal A, K, G to detected device, the detection circuit includes the arteries and veins in shell 1
Rush signal generator 11, waveshape detector 5, synchro source 9, AC/DC converters 10, pulse signal generator 11 respectively with it is synchronous
Power supply 9 in 1 front postlaminar part of shell waveshape detector 5 and control handle 7 be connected, on synchro source 9 and shell 1
AC220V connecting terminals 8 are connected, and synchro source 9 is connected through AC/DC converters 10 with the DC12V connecting terminals 2 on shell 1,
One connecting terminal of AC220V connecting terminals 8 is connected through current strength observer 6 with the second connecting terminal K on panel, separately
One connecting terminal is connected with the first connecting terminal A on shell 1, pulse signal generator 11 and the first wiring on shell 1
Terminal A, third connecting terminal G are connected, and are fitted on the first connecting terminal A for the to measured device on-line checking
It is fitted with for the second conductor grip 4-2 to measured device on-line checking on one conductor grip 4-1, the second connecting terminal K, third connects
It is fitted on line terminals G and presss from both sides 4-3 for the privates to measured device on-line checking.
In order to ensure using effect and easy to use,
Handle 3 is housed on the shell 1, is used convenient for being convenient for carrying.
The pulse signal generator 11 is synchronization pulse generator, synchronization pulse generator and is placed in shell
8051 controller 12 of microcontroller outside body 1 is connected, and can not have to controller under normal circumstances, directly utilize pulse signal generator
11 itself control section and control handle 7.
The current strength observer 6 is light bulb, by the size of the bright strong and weak observation electric current of light bulb.
The waveshape detector 5 is oscillograph.
The first conductor grip 4-1, the second conductor grip 4-2, privates folder 4-3 are crocodile clip.
The shell 1 is rectangular made of the engineering plastics of high intensity.
When the utility model is used, 13 pin of measured device can be as required connected on to the first connecting terminal A respectively, second connect
On line terminals K, third connecting terminal G, as shown in Fig. 2, when for device on-line checking, the first conductor grip 4-1, can be used
Two conductor grip 4-2, privates folder 4-3 are clipped on the pin of line measured device 13 as required respectively, you can on-line checking is carried out,
Fast and easy is efficient, saving of work and time.
What applicant to be illustrated, be presented above specific embodiment, but the utility model be not limited to it is described
The basic ideas of embodiment, the utility model are above-mentioned basic scheme, for those of ordinary skill in the art, according to this
The introduction of utility model, the model, formula, parameter for designing various modifications do not need to spend creative work.It is not departing from
The change, modification, replacement and modification carried out to embodiment in the case of the principles of the present invention and spirit still fall within this reality
With in novel protection domain.
It can be seen from the above, the utility model is to provide a kind of IGBT on-line measuring devices, it can be to the performance of switching device
It is detected and tests, the device is easy to carry, can directly bring it to scene, and on-line checking is carried out to switching device.Also,
Measured again it is not necessary that switching device is dismantled completely from equipment, can retaining device original connection relation, only need to will examine
The corresponding end that the associated terminal of survey device is linked into switching device can be detected, and detection efficiency is higher, and workload is small,
Detection time is shorter, has saved man power and material.
Moreover, capableing of the control waveform of real-time detection switch device by waveshape detector, convenient for grasping switching device
Triggered time determines whether that output has start pulse signal by the waveshape detector；Also, current strength detector can
Detection is by the current strength of switching device, the curent change that testing staff can be detected by observing current strength detector
To judge whether switching device is connected and whether has mutation by the electric current of switching device.Therefore, waveshape detector and electric current
Intensity detector is with the use of being capable of detecting when whether switching device is intact, and whether performance is normal, moreover, without complicated cumbersome
Deterministic process.
The utility model not only can effectively detection switch device IGBT, and can also effective for detection thyristor or its
The device of his type in the circuit structure described in Fig. 2, can be clearly seen that, which includes pulse signal
Device（Module）, waveshape detector（Module）With current strength observer（Module）, further include several terminals, respectively：Power end
Son, power supply terminal and control terminal, wherein power supply terminal is for connecting power supply.Power supply terminal passes through internal connection line road
Power supply terminal is connected, power supply terminal is used to connect the anode and cathode of measured switch device, work energy is provided for switching device.
Current strength observer（Module）It is serially connected in the connection line between power supply terminal and power supply terminal, for in switching device
The current strength of flowing is observed.
Pulse signal generator（Module）For providing start pulse signal to measured switch device, signal output end is logical
Signal transmission line connection control terminal is crossed, which is used to connect the control pole of measured switch device.Waveforms detection mould
Block is used to detect the waveform of the control signal of pulse signal generation module output.
Based on the above basic technical scheme, the use of the new type in the specific implementation, as shown in Fig. 2, the detection device includes
Synchronous generator, waveform detection module, current strength detection module, external power terminal, power supply terminal and control terminal,
Wherein, external power terminal is for connecting external power supply, such as AC220V alternating currents.It can in order to ensure synchronous generator
By power supply, external power terminal can also directly connect the feeder ear of synchronous generator by AC/AC converters, moreover,
In order to provide direct current to the related device in the detection device, which further includes AC/DC converters, which turns
The exchange side of parallel operation connects synchro source, and DC side exports 12V DC electricity.After the conversion of AC/DC converters, protected by being equipped with
The current supply circuit of shield IC is powered, it is ensured that power supply safety.（Implement not show in illustration）
External power terminal connects power supply terminal K and A by internal connection line road, the two power supply terminals are waited for for connecting
The anode and cathode of slowdown monitoring switch device, external power supply provide work energy by power supply terminal K and A for measured switch device.
Current strength observer（Module）A wherein connection line is serially connected between external power terminal and power supply terminal
On, in the present embodiment, current strength detection module string is located in the connection line between external power terminal and power supply terminal K,
For being detected to the current strength flowed in measured switch device, different current strength is in current strength observer（Mould
Block）In have different visual displays.Current strength display（Module）It can be digital current observation device, can directly show
Show the numerical value of electric current；It can also be mechanical electric current observation device, the numerical representation method current strength being directed toward by pointer；Again or
It is light bulb, passes through the degree of the brightness of light bulb and the current strength of brightness changed to indicate to flow through in circuit.The present embodiment
In, current strength observer（Module）For light bulb, the quality of switching device can be more intuitively indicated by light bulb.
Synchronous generator is existing equipment, and certain start pulse signal can be exported to measured switch device,
Its signal output end connects control terminal by signal transmission line, which is used to connect the control of measured switch device
Pole.Waveform detection module is used to detect the waveform of the control signal of synchronous generator output, in the present embodiment, waveform inspection
Survey module is oscillograph, which more can intuitively show the wave of the control signal of synchronous generator output
Shape.
Since synchronous generator is existing equipment, its structure is not specifically described in the description.
In the present embodiment, the controller in Fig. 2 can be the control section that synchronous generator inherently has, can also be with together
The controller connected outside step signal generator.Also, the governor circuit of synchronous generator uses latest modern technological type simultaneous phase-shifting
Technology pushes measured switch device, change to wait for after sending the synchronized phase-shift circuit conversion of digital signal by artificial control circuit
Slowdown monitoring switch device is turned on and off angle.In addition, manual setting knob and pointer gauge have been generally configured on synchronous generator,
Wherein, manual setting button is used for display switch device control pole for adjusting phase-shifting unit control pole signal, pointer gauge manually
The angle of flow signal strength.
By the composition device in the detection device, such as：Synchronous generator, waveshape detector（Module）It is strong with electric current
Spend observer（Module）In a shell, in the shell that be made of the higher plastics of intensity, realizes and is isolated with the external world,
Avoid the interference of external clutter, it is ensured that the accuracy of detection enhances the reliability of device.And the detection device is several
Terminal：External power terminal, power supply terminal and control terminal, respective position is drawn using connection line from shell,
There are many kinds of the type of hardware of terminal, such as：Conventional line joint, probe, crocodile clip or other forms, the present embodiment
In, in order to which the port when detecting with measured switch device is reliably connected, these terminals are crocodile clip, and clip is clipped in and is waited for
Corresponding position on slowdown monitoring switch device can carry out on-line checking to switching device, to observe its conduction property.
When being detected to switching device, first by several terminal clamps of detection device switching device corresponding position
On, then, synchronous generator sends out pulse signal, trigger switch break-over of device, meanwhile, oscillograph detects triggering letter in real time
Number waveform, detect the current strength by switching device using the brightness of light bulb.It is able to determine whether by oscillograph defeated
Go out trigger signal, the current strength by switching device can be detected by light bulb, specially：Testing staff is by observing light bulb
Brightness change can determine switching device whether circulating current, and whether have mutation by the electric current of switching device.Therefore,
Oscillograph and light bulb are with the use of being capable of detecting when whether switching device is intact, and whether performance is normal, moreover, without complicated cumbersome
Deterministic process.Such as：When oscillograph determines that the control pole of switching device has trigger signal, still, light bulb does not work, and indicates switch
There is no circulating current in device, then judges that the switching device has damaged.
In addition, in order to ensure test safety, which should reliable ground.
In above-described embodiment, the power supply of detection device is not the power supply being arranged in detection device, but outer
Portion's power supply, specially AC220V power supplies, therefore, power supply terminal are just external power terminal, are supplied for connecting the AC220V
Power supply.As other embodiments, power supply can also be the power supply inside detection device, be arranged in detection device
Interior such as conventional energy storage device, therefore, because the presence of energy storage device, the volume of the detection device in the present embodiment is with regard to big
Volume in above-described embodiment, although reducing portability, practicability is improved, the field of not external power supply is suitble to
It closes.
In above-described embodiment, pulse signal generation module is synchronous generator, as other embodiments, pulse letter
Number generation module can also be other equipment that can generate pulse signal.
In short, the utility model is simple in structure it can be seen from above, and it is easy to use, it can be to the performance of switching device
It is detected, carrying is easy to use, can directly bring it to scene, and on-line checking is carried out to switching device.Also, without that will open
Device is closed to dismantle from equipment and measures again completely, can retaining device original connection relation, only need to be by detection device
The corresponding end that associated terminal is linked into switching device can be detected, and detection efficiency is higher, and workload is small, detection time
It is shorter, man power and material is saved, is the innovation detected on IGBT, thyristor or other kinds of device and equipment, there is good economy
And social benefit.
Claims (7)
1. a kind of IGBT on-line measuring devices, including shell（1）And shell（1）Built-in detection circuit, it is characterized in that：Shell
（1）Side is equipped with AC220V connecting terminals（8）With DC12V connecting terminals（2）, shell（1）Control rotation is respectively provided on front panel
Button（7）, current strength observer（6）With for connecting terminal A, K, G to detected device, the detection circuit includes dress
In shell（1）Interior pulse signal generator（11）, waveshape detector（5）, synchro source（9）, AC/DC converters（10）, arteries and veins
Rush signal generator（11）Respectively with synchro source（9）With mounted in shell（1）Waveshape detector in the postlaminar part of front（5）And control
Knob processed（7）It is connected, synchro source（9）With shell（1）On AC220V connecting terminals（8）It is connected, synchro source（9）Through AC/
DC converters（10）With shell（1）On DC12V connecting terminals（2）It is connected, AC220V connecting terminals（8）A connecting terminal
Through current strength observer（6）It is connected with the second connecting terminal K on panel, another connecting terminal and shell（1）On
One connecting terminal A is connected, pulse signal generator（11）With shell（1）On the first connecting terminal A, third connecting terminal G phases
Even, it is fitted with for the first conductor grip to measured device on-line checking on the first connecting terminal A（4-1）, second connects
It is fitted on line terminals K for the second conductor grip to measured device on-line checking（4-2）, it is fitted on third connecting terminal G
For the privates folder to measured device on-line checking（4-3）.
2. IGBT on-line measuring devices according to claim 1, it is characterized in that：The shell（1）It is upper that handle is housed（3）,
It is used convenient for being convenient for carrying.
3. IGBT on-line measuring devices according to claim 1, it is characterized in that：The pulse signal generator（11）For
Synchronization pulse generator, synchronization pulse generator and is placed in shell（1）Outer 8051 controller of microcontroller（12）Phase
Even, controller can not had to, directly utilize pulse signal generator（11）The control section of itself and control handle（7）.
4. IGBT on-line measuring devices according to claim 1, it is characterized in that：The current strength observer（6）For
Light bulb, by the size of the bright strong and weak observation electric current of light bulb.
5. IGBT on-line measuring devices according to claim 1, it is characterized in that：The waveshape detector（5）For oscillography
Device.
6. IGBT on-line measuring devices according to claim 1, it is characterized in that：First conductor grip（4-1）, second
Conductor grip（4-2）, privates folder（4-3）It is crocodile clip.
7. IGBT on-line measuring devices according to claim 1, it is characterized in that：The shell（1）It is by high intensity
It is rectangular made of engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880674.0U CN207832955U (en) | 2017-12-28 | 2017-12-28 | A kind of IGBT on-line measuring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880674.0U CN207832955U (en) | 2017-12-28 | 2017-12-28 | A kind of IGBT on-line measuring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207832955U true CN207832955U (en) | 2018-09-07 |
Family
ID=63390442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721880674.0U Expired - Fee Related CN207832955U (en) | 2017-12-28 | 2017-12-28 | A kind of IGBT on-line measuring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207832955U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632492A (en) * | 2019-10-12 | 2019-12-31 | 盐田国际集装箱码头有限公司 | Portable IGBT tester |
| CN110907789A (en) * | 2019-11-25 | 2020-03-24 | 歌尔股份有限公司 | Device testing method and device and electronic equipment |
| CN112067966A (en) * | 2020-09-19 | 2020-12-11 | 哈尔滨理工大学 | Simulation type IGBT failure mechanism analysis system |
-
2017
- 2017-12-28 CN CN201721880674.0U patent/CN207832955U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632492A (en) * | 2019-10-12 | 2019-12-31 | 盐田国际集装箱码头有限公司 | Portable IGBT tester |
| CN110907789A (en) * | 2019-11-25 | 2020-03-24 | 歌尔股份有限公司 | Device testing method and device and electronic equipment |
| CN112067966A (en) * | 2020-09-19 | 2020-12-11 | 哈尔滨理工大学 | Simulation type IGBT failure mechanism analysis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20181228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |