CN207181614U - The detection means of power tube - Google Patents
The detection means of power tube Download PDFInfo
- Publication number
- CN207181614U CN207181614U CN201721021562.XU CN201721021562U CN207181614U CN 207181614 U CN207181614 U CN 207181614U CN 201721021562 U CN201721021562 U CN 201721021562U CN 207181614 U CN207181614 U CN 207181614U
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- power tube
- output end
- source
- detection means
- adjustable resistance
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Abstract
The utility model provides a kind of detection means of power tube, including detection module and driving module.Detecting module includes positive output end, negative output terminal and the indicator lamp being sequentially connected in series, the first adjustable resistance and the first dc source；Positive output end and negative output terminal are respectively used to connect the input and output end of power tube to be measured；Driving module includes driving voltage output end, the second adjustable resistance, the second dc source, the first ammeter and first voltage table；Second dc source is electrically connected with the second dc source and the first dc source respectively again by the electrical connection of the first ammeter and the second adjustable resistance, the second adjustable resistance；Driving voltage output end electrically connects with the second adjustable resistance, and gate pole of the driving voltage output end also with power tube to be measured electrically connects.Site Detection of the utility model especially suitable for inverter, rectifier in device, and it is easy to operate, it is easy to grasp, accuracy of judgement, the labor intensity of testing staff can be reduced.
Description
Technical field
Electronic technology field is the utility model is related to, more particularly to a kind of detection means of power tube.
Background technology
Power Electronic Technique is ripe day by day, and its application in daily life and industrial production is also more and more.It is small to day
Often the stepless speed regulating fan in life, electromagnetic oven, the big drive device to various occasions industrially all be unable to do without controllable whole
Stream, inversion device.At present, the fault detect to controlled rectification, inversion device is typically realized by instrument.But control rectification and
Inversion device is typically mounted inside device, and because the other elements inside device, such as inductance, electric capacity etc. can influence instrument
Measurement to power tube, therefore need disintegration package unit could be to whole when high-power controlled rectification, inversion device failure
Power tube in stream and inversion device is detected, and the dismounting of most of device, installs extremely complex, ten are determined and repaired to failure
Divide inconvenience, and can also have the risk of damage miscellaneous part in unloading process.
Utility model content
The technical problems to be solved in the utility model is to overcome in the prior art to the rectification in device and inverter
Part is detected, it is necessary to inductance, electric capacity in provision for disengagement etc. can influence the element of measurement, and failure is determined and repaired very not
Just, a kind of the defects of and in unloading process also damaging miscellaneous part, there is provided detection means of power tube.
The utility model is that solve above-mentioned technical problem by following technical proposals：
A kind of detection means of power tube, its feature are that the detection means includes detection module and driving module；
It is described detection module include positive output end, negative output terminal and the indicator lamp being sequentially connected in series, the first adjustable resistance and
First dc source；The positive output end electrically connects with one end of the indicator lamp, the negative output terminal and first direct current
The negative pole electrical connection of power supply；The positive output end and the negative output terminal are respectively used to connect the input of power tube to be measured and defeated
Go out end；
It is described driving module include driving voltage output end, the second adjustable resistance, the second dc source, the first ammeter and
First voltage table；The positive pole of second dc source is consolidated by the first of first ammeter and second adjustable resistance
Determine binding post electrical connection, the second link post of second adjustable resistance respectively with the negative pole of second dc source and
The negative pole electrical connection of first dc source；The driving voltage output end electrically connects with the first link post, institute
Driving voltage output end is stated to be additionally operable to electrically connect with the gate pole of the power tube to be measured；
The positive terminal of the first voltage table electrically connects with the first link post of second adjustable resistance, negative to connect
Terminal electrically connects with the second link post of second adjustable resistance.
It is preferred that the detection module also includes：
Second ammeter, it is series in the detection module；
Second voltage table, it is in parallel with the power tube to be measured.
It is preferred that the detection means also includes controller, the controller respectively with second ammeter and described
Second voltage table electrically connects；
The current value that second ammeter is additionally operable to measure is sent to the controller；
The magnitude of voltage that the second voltage table is additionally operable to measure is sent to the controller；
The controller generates warning message according to the current value and the magnitude of voltage.
It is preferred that the detection means also includes alarm, electrically connected with the controller；
The controller is additionally operable to send the warning message to the alarm；
The alarm is used to prompt warning message.
It is preferred that the driving module also includes a switch；
The driving voltage output end is electrically connected by the switch with the gate pole of the power tube to be measured.
It is preferred that the positive output end, the negative output terminal and the driving voltage output end are equipped with wire clamp.
It is preferred that the output voltage of first dc source is more than 5V and is less than 36V；
The output voltage of second dc source is more than 9V and is less than 36V.
Positive effect of the present utility model is：Power tube is detected using detection means of the present utility model
Make the element that measurement can be influenceed without the inductance in provision for disengagement, electric capacity etc., it is easy to operate especially suitable for Site Detection, easily
In grasp, accuracy of judgement, the labor intensity of testing staff can be reduced.
Brief description of the drawings
Fig. 1 is the circuit connection diagram of the detection means of the power tube of the embodiment of the utility model one.
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
As shown in figure 1, the detection means of the power tube of the present embodiment includes detection module and driving module.Wherein, detect
Module includes positive output end 11, negative output terminal 12 and the indicator lamp L being sequentially connected in series, the first adjustable resistance RP1 and the first direct current
Power supply E1, positive output end 11 electrically connect with indicator lamp L one end, and the negative pole of negative output terminal 12 and the first dc source E1 is electrically connected
Connect.Drive module include driving voltage output end 13, the second adjustable resistance RP2, the second dc source E2, the first ammeter A1 and
First voltage Table V 1.Second dc source E2 positive pole is fixed by the first of the first ammeter A1 and the second adjustable resistance RP2
Binding post electrically connects, the second adjustable resistance RP2 the second link post negative pole and first with the second dc source E2 respectively
Dc source E1 negative pole electrical connection, driving voltage output end 13 electrically connect with the first link post.First voltage Table V 1
Positive terminal electrically connects with the second adjustable resistance RP2 the first link post, and the of negative terminal and the second adjustable resistance RP2
Two link posts electrically connect.
In the present embodiment, driving module also includes switch 3, and driving voltage output end 13 passes through switch 3 and power tube 2 to be measured
Gate pole electrical connection.For the ease of connecting power tube, positive output end, negative output terminal and driving voltage output end are equipped with wire clamp.
Power tube to be measured in the present embodiment can be IGCT, field-effect transistor or insulated gate bipolar transistor or
MOS controls IGCT.
When the power tube in inverter or rectifier detects, the wire clamp of driving voltage output end is located in and treated
The gate pole of power scale pipe, the wire clamp of positive output end are located in the input of power tube to be measured, and the wire clamp of negative output terminal, which is located in, to be treated
The output end of power scale pipe, so that the gate pole of power tube to be measured electrically connects with driving voltage output end, input and positive output end
Electrical connection, output end electrically connect with negative output terminal.By lower switch, the slide plate of the second adjustable resistance is slided, exports driving voltage
The voltage (magnitude of voltage and current value that can be measured by first voltage table and the first ammeter are calculated) that must be exported is held to treat
In the drive voltage range of power scale pipe, the slide plate of the first adjustable resistance is slided, the first dc source provides for power tube to be measured
The safe voltage of one forward bias, if indicator lamp is bright, illustrate that power tube is normal, if indicator lamp does not work, illustrate power tube
Failure.The detection means of the present embodiment is easy to operate, is easy to grasp, accuracy of judgement, can reduce the labor intensity of testing staff.
In the present embodiment, detection module also includes the second ammeter A2, second voltage Table V 2, controller (not shown)
With alarm (not shown).Second ammeter A2 goes here and there with indicator lamp L, the first adjustable resistance RP1 and the first dc source E1
Connection, second voltage Table V 2 are in parallel with power tube 2 to be measured.Controller is electric with the second ammeter, second voltage table and alarm respectively
Connection.During detection, adjust the first adjustable resistance slide plate, the second ammeter by the current value measured send successively to
Controller, second voltage table send the magnitude of voltage measured the current value that can be obtained to controller, controller according to reception successively
VA characteristic curve is generated with magnitude of voltage, show that the conducting of power tube to be measured maintains electric current.Controller can also according to current value and
Magnitude of voltage generates warning message, and warning message is sent to alarm, alarm prompting warning message, to notify testing staff
The power tube of current detection whether failure.
In the present embodiment, the output voltage of the first dc source is more than 5V and is less than 36V, the output electricity of the second dc source
Pressure is more than 9V and is less than 36V.Because the first dc source and the second dc source use direct current safe voltage, therefore detect dress
Main power source, load need to only be disengaged and trigger back by putting when being measured to the controllable rectifier bridge inside frequency converter kind equipment, inverter bridge
Road, without the electric capacity in further provision for disengagement, inductance component, so as to especially suitable for Site Detection.And due to instruction
Lamp has certain power, can avoid the influence of electric capacity and inductance component to measurement, therefore can obtain accurate judged result.
In addition, the present embodiment also has cheap cost of manufacture, compact, carries conveniently moving, security is good, can take into account maintenance simultaneously
Personnel's personal safety and relevant device safety, internal structure is clear, convenient material drawing, overhauls the advantages that easy.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within the scope of protection of the utility model.
Claims (7)
1. a kind of detection means of power tube, it is characterised in that the detection means includes detection module and driving module；
The detection module includes positive output end, negative output terminal and the indicator lamp being sequentially connected in series, the first adjustable resistance and first
Dc source；The positive output end electrically connects with one end of the indicator lamp, the negative output terminal and first dc source
Negative pole electrical connection；The positive output end and the negative output terminal are respectively used to connect input and the output of power tube to be measured
End；
The driving module includes driving voltage output end, the second adjustable resistance, the second dc source, the first ammeter and first
Voltmeter；The positive pole of second dc source is fixed with the first of second adjustable resistance by first ammeter and connect
Terminal electrically connects, the second link post of second adjustable resistance respectively with the negative pole of second dc source and described
The negative pole electrical connection of first dc source；The driving voltage output end electrically connects with the first link post, the drive
Dynamic voltage output end is additionally operable to electrically connect with the gate pole of the power tube to be measured；
The positive terminal of the first voltage table electrically connects with the first link post of second adjustable resistance, negative terminal
Electrically connected with the second link post of second adjustable resistance.
2. the detection means of power tube as claimed in claim 1, it is characterised in that the detection module also includes：
Second ammeter, it is series in the detection module；
Second voltage table, it is in parallel with the power tube to be measured.
3. the detection means of power tube as claimed in claim 2, it is characterised in that the detection means also includes controller,
The controller electrically connects with second ammeter and the second voltage table respectively；
The current value that second ammeter is additionally operable to measure is sent to the controller；
The magnitude of voltage that the second voltage table is additionally operable to measure is sent to the controller；
The controller generates warning message according to the current value and the magnitude of voltage.
4. the detection means of power tube as claimed in claim 3, it is characterised in that the detection means also includes alarm,
Electrically connected with the controller；
The controller is additionally operable to send the warning message to the alarm；
The alarm is used to prompt warning message.
5. the detection means of power tube as claimed in claim 1, it is characterised in that the driving module also includes a switch；
The driving voltage output end is electrically connected by the switch with the gate pole of the power tube to be measured.
6. the detection means of the power tube as described in any one in claim 1-5, it is characterised in that the positive output end,
The negative output terminal and the driving voltage output end are equipped with wire clamp.
7. the detection means of power tube as claimed in claim 6, it is characterised in that the output voltage of first dc source
More than 5V and it is less than 36V；
The output voltage of second dc source is more than 9V and is less than 36V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021562.XU CN207181614U (en) | 2017-08-15 | 2017-08-15 | The detection means of power tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021562.XU CN207181614U (en) | 2017-08-15 | 2017-08-15 | The detection means of power tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207181614U true CN207181614U (en) | 2018-04-03 |
Family
ID=61741009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721021562.XU Active CN207181614U (en) | 2017-08-15 | 2017-08-15 | The detection means of power tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207181614U (en) |
-
2017
- 2017-08-15 CN CN201721021562.XU patent/CN207181614U/en active Active
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