CN208613973U - It is a kind of can power alarm power module - Google Patents
It is a kind of can power alarm power module Download PDFInfo
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- CN208613973U CN208613973U CN201820827233.2U CN201820827233U CN208613973U CN 208613973 U CN208613973 U CN 208613973U CN 201820827233 U CN201820827233 U CN 201820827233U CN 208613973 U CN208613973 U CN 208613973U
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Abstract
The utility model discloses it is a kind of can power alarm power module, including rectification module, filter module, inverter module, control module, drive module, fault detection module, mainboard and transformer；Rectification module is connect with three-phase alternating-current supply, and rectification module is connect with filter module and inverter module respectively, and filter module and inverter module are parallel with one another；Inverter module is connect with transformer, and rectification module is also connect with control module, and control module is also connect with mainboard, and drive module is connect with mainboard, and drive module is also connect with inverter module, and fault detection module is connect with inverter module, welding machine and mainboard respectively.Advantages and beneficial effects of the utility model lie in that can timely learning inverter module whether there is exception, and whether welding machine there is the situation of short circuit, therefore the connection between rectification module and three-phase alternating-current supply can be cut off by mainboard in time, and then welding machine, rectification module and inverter module are not damaged.
Description
Technical field
The utility model relates to electric field, in particular to it is a kind of can power alarm power module.
Background technique
Inverter type welder is gradually recognized, is the core force of the following welding profession.Inverter type welder is first by three-phase alternating current
Electricity carries out rectifying and wave-filtering and becomes direct current, is then reverse into 1KHz alternating current supply welder transformer, welded change using IGBT
Depressor decompression, then low-voltage DC is become by diode progress full-wave rectification, it is used for welding；And the inversion mould of inverter type welder
Block and welding machine are after prolonged use, it is easy to situations such as abnormal or short circuit, the electric current for causing inverter module to export, or stream occur
Electric current through welding machine is excessive, and inverter type welder is caused to damage.
Utility model content
To solve the above-mentioned problems, the utility model provide it is a kind of can power alarm power module.The technical program will
First input end, the second input terminal and third input terminal are connect with three-phase alternating-current supply, and three-phase alternating-current supply will be to rectification module
Three-phase alternating current is exported, rectification module, which rectify to three-phase alternating current, to be formed direct current and export to inverter module, inversion mould
Block carries out inversion to direct current and forms inversion alternating current；Inversion the alternating current successively transformation through transformer and diode D7 and D8
Rectification forms working direct current electricity, and exports to welding machine；Current threshold is stored in mainboard, inverter current sample circuit is to first
The electric current that inversion end and the second inversion end are flowed through is sampled, and exports the first inverter current signal and the second inversion to mainboard
Current signal；If mainboard judges that the first inverter current signal or the second inverter current signal are more than current threshold, mainboard will lead to
It crosses control module and exports shutdown signal to the control electrode of silicon-controlled D1, D3, D5, at this point, silicon-controlled D1, D3, D5 will be turned off, with
The connection between rectification module and three-phase alternating-current supply is cut off, causes to damage because the electric current of inversion alternating current is excessive to avoid welding machine
It is bad；Welding current sample circuit samples the connection line between the negative pole end and secondary coil of welding machine, and obtains welding machine
Current signal, when the size of current of welder current signal be more than current threshold when, mainboard will by control module to silicon-controlled D1,
The control electrode of D3, D5 export shutdown signal, at this point, silicon-controlled D1, D3, D5 will be turned off, to cut off rectification module and three-phase alternating current
Connection between power supply, the electric current for flowing through working direct current electricity due to short circuit to avoid welding machine is excessive and damages.
One of the utility model can power alarm power module, including rectification module, filter module, inversion mould
Block, control module, drive module, fault detection module, mainboard and transformer；The rectification module and three-phase alternating-current supply connect
It connects, the rectification module is connect with filter module and inverter module respectively, and the filter module and inverter module are parallel with one another；Institute
Inverter module is stated to connect with the transformer, the rectification module is also connect with the control module, the control module also with
The mainboard connection, the drive module are connect with the mainboard, and the drive module is also connect with the inverter module, described
Fault detection module is connect with the inverter module, welding machine and mainboard respectively.
In above scheme, the mainboard is also connected with touch screen.
In above scheme, the rectification module includes silicon-controlled D1, D3 and D5, diode D2, D4 and D6, the first input
End, the second input terminal, third input terminal, the first output end and second output terminal；The first input end, the second input terminal and
Three input terminals are connect with three-phase alternating-current supply respectively；
The anode of the silicon-controlled D1 and the cathode of diode D2 are connect with first input end respectively, the silicon-controlled D3's
The cathode of anode and diode D4 are connect with the second input terminal respectively, the anode of the silicon-controlled D5 and the cathode point of diode D6
Do not connect with third input terminal, the cathode of the cathode of the silicon-controlled D1, the cathode of silicon-controlled D3 and silicon-controlled D5 respectively with institute
State the connection of the first output end, the anode of the diode D2, the anode of diode D4 and diode D6 anode respectively with it is described
Second output terminal connection；
The filter module includes capacitor C1, and the both ends of the capacitor C1 connect with the first output end and second output terminal respectively
It connects；First output end and second output terminal are also connect with the inverter module respectively.
In above scheme, the inverter module includes transistor G1, G2, G3, G4 and the first inversion end and the second inversion
End；
The collector of the transistor G1 and the collector of transistor G3 are connect with first output end respectively, the crystalline substance
The emitter of body pipe G2 and the emitter of transistor G4 are connect with the second output terminal respectively；
The emitter of the transistor G1 and the collector of transistor G2 are connect with first inversion end respectively, the crystalline substance
The emitter of body pipe G3 and the collector of transistor G4 are connect with the second inversion end respectively；Described transistor G1, G2, G3 and G4 points
Not Wei insulated gate bipolar transistor, the inverter module be IGBT module.
In above scheme, the drive module is connect with the base stage of transistor G1, G2, G3 and G4 respectively, the driving mould
Block is IGBT trigger circuit, and the mainboard is single-chip microcontroller.
In above scheme, the transformer includes primary coil, secondary coil and diode D7 and D8, the primary
Coil and secondary coil are mutually matched, and the both ends of the primary coil connect with first inversion end and the second inversion end respectively
It connects；
The both ends of the secondary coil are connect with the anode of the diode D7 and D8 respectively, the diode D7 and D8
Cathode connect respectively with the positive terminal of the welding machine, the negative pole end of the welding machine is connect with the secondary coil.
In above scheme, the control electrode of described silicon-controlled D1, D3 and D5 are connect with the control module respectively.
In above scheme, the fault detection module includes inverter current sample circuit and welding current sample circuit, institute
It states inverter current sample circuit to connect with first inversion end and the second inversion end respectively, the inverter current sample circuit is also
It is connect with the mainboard, the connection that the welding current sample circuit is connect with the welding machine with secondary coil, the weldering
Machine current sampling circuit is also connect with the mainboard.
Advantages and beneficial effects of the utility model lie in that the utility model provide it is a kind of can power alarm power supply mould
Block, if the inversion alternating current of inverter module output is excessive, mainboard will cut off the company between rectification module and three-phase alternating-current supply
It connects, is damaged to avoid welding machine because the electric current of inversion alternating current is excessive；If flowing through the electric current mistake of the working direct current electricity of welding machine
When big, mainboard will cut off the connection between rectification module and three-phase alternating-current supply, and it is straight because of short circuit to flow through work to avoid welding machine
The electric current of galvanic electricity is excessive and damages；Therefore, the technical program is using fault detection module to the electricity of inverter module and welding machine
Stream carries out real-time sampling, thus can timely learning inverter module whether there is exception and whether welding machine the feelings of short circuit occurs
Condition, therefore the connection between rectification module and three-phase alternating-current supply can be cut off by mainboard in time, so welding machine, rectification module with
And inverter module is not damaged.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 be the utility model one kind can power alarm power module structural schematic diagram.
In figure: 1, rectification module 2, filter module 3, inverter module 4, control module
5, drive module 6, fault detection module 7, mainboard 8, transformer
9, three-phase alternating-current supply 10, welding machine 11, first input end
12, the second input terminal 13, third input terminal 14, the first output end
15, second output terminal 31, the first inversion end 32, the second inversion end
61, inverter current sample circuit 62, welding current sample circuit
81, primary coil 82, secondary coil
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
As shown in Figure 1, the utility model be it is a kind of can power alarm power module, including rectification module 1, filter module
2, inverter module 3, control module 4, drive module 5, fault detection module 6, mainboard 7 and transformer 8；Rectification module 1 and three-phase
AC power source 9 connects, and rectification module 1 is connect with filter module 2 and inverter module 3 respectively, 3 phase of filter module 2 and inverter module
It is mutually in parallel；Inverter module 3 is connect with transformer 8, and rectification module 1 is also connect with control module 4, control module 4 also with mainboard 7
Connection, drive module 5 connect with mainboard 7, and drive module 5 is also connect with inverter module 3, fault detection module 6 respectively with inversion
Module 3, welding machine 10 and mainboard 7 connect.
Preferably, mainboard 7 is also connected with touch screen 71.
Specifically, rectification module 1 includes silicon-controlled D1, D3 and D5, diode D2, D4 and D6, first input end 11, second
Input terminal 12, third input terminal 13, the first output end 14 and second output terminal 15；First input end 11,12 and of the second input terminal
Third input terminal 13 is connect with three-phase alternating-current supply 9 respectively；
The anode of silicon-controlled D1 and the cathode of diode D2 are connect with first input end 11 respectively, the anode of silicon-controlled D3
It is connect respectively with the second input terminal 12 with the cathode of diode D4, the cathode of the anode of silicon-controlled D5 and diode D6 are respectively with the
Three input terminals 13 connection, the cathode of the cathode of silicon-controlled D1, the cathode of silicon-controlled D3 and silicon-controlled D5 respectively with the first output end
The anode of 14 connections, the anode of diode D2, the anode of diode D4 and diode D6 is connect with second output terminal 15 respectively；
Filter module 2 includes capacitor C1, and the both ends of capacitor C1 are connect with the first output end 14 and second output terminal 15 respectively；
First output end 14 and second output terminal 15 are also connect with inverter module 3 respectively.
Further, inverter module 3 includes transistor G1, G2, G3, G4 and the first inversion end 31 and the second inversion end
32；
The collector of transistor G1 and the collector of transistor G3 are connect with the first output end 14 respectively, the hair of transistor G2
The emitter of emitter-base bandgap grading and transistor G4 are connect with second output terminal 15 respectively；
The emitter of transistor G1 and the collector of transistor G2 are connect with the first inversion end 31 respectively, the hair of transistor G3
The collector of emitter-base bandgap grading and transistor G4 are connect with the second inversion end 32 respectively；Transistor G1, G2, G3 and G4 are respectively insulated gate
Bipolar junction transistor, inverter module 3 are IGBT module.
Further, drive module 5 is connect with the base stage of transistor G1, G2, G3 and G4 respectively, and drive module 5 is IGBT
Trigger circuit, mainboard 7 are single-chip microcontroller.
Further, transformer 8 includes primary coil 81, secondary coil 82 and diode D7 and D8, primary coil 81
It is mutually matched with secondary coil 82, the both ends of primary coil 81 are connect with the first inversion end 31 and the second inversion end 32 respectively；
The both ends of secondary coil 82 are connect with the anode of diode D7 and D8 respectively, the cathode difference of diode D7 and D8
It is connect with the positive terminal of welding machine 10, the negative pole end of welding machine 10 is connect with secondary coil 82.
Further, the control electrode of silicon-controlled D1, D3 and D5 are connect with control module 4 respectively.
Further, fault detection module 6 includes inverter current sample circuit 61 and welding current sample circuit 62, inverse
Time-dependent current sample circuit 61 is connect with the first inversion end 31 and the second inversion end 32 respectively, inverter current sample circuit 61 also with master
Plate 7 connects, the connection that welding current sample circuit 62 is connect with welding machine 10 with secondary coil 82,10 current sample of welding machine
Circuit is also connect with mainboard 7.
The working principle of above-mentioned technical proposal is: by first input end 11, the second input terminal 12 and third input terminal 13 with
Three-phase alternating-current supply 9 connects, and three-phase alternating-current supply 9 will export three-phase alternating current to rectification module 1, and rectification module 1 intersects to three
Galvanic electricity carries out rectification and forms direct current and export to inverter module 3, and inverter module 3 carries out inversion to direct current and forms inversion friendship
Galvanic electricity；The rectification of transformation and diode D7 and D8 of the inversion alternating current successively through transformer 8 forms working direct current electricity, and exports
To welding machine 10；
Current threshold is stored in mainboard 7, inverter current sample circuit 61 is to the first inversion end 31 and the second inversion end 32
The electric current flowed through carries out real-time sampling, and exports the first inverter current signal and the second inverter current signal to mainboard 7；
If mainboard 7 judges that the first inverter current signal or the second inverter current signal are more than current threshold, illustrate inverse
Becoming module 3 and exception occurs, mainboard 7 will export shutdown signal to the control electrode of silicon-controlled D1, D3, D5 by control module 4,
At this point, silicon-controlled D1, D3, D5 will be turned off, to cut off the connection between rectification module 1 and three-phase alternating-current supply 9, to avoid weldering
Machine 10 is damaged because the electric current of inversion alternating current is excessive；
Welding current sample circuit 62 carries out the connection line between the negative pole end and secondary coil 82 of welding machine 10 real-time
Sampling, and welder current signal is obtained, when the size of current of welder current signal is more than current threshold, then illustrate that welding machine 10 goes out
Short circuit is showed, mainboard 7 will export shutdown signal to the control electrode of silicon-controlled D1, D3, D5 by control module 4, at this point, controllably
Silicon D1, D3, D5 will be turned off, to cut off the connection between rectification module 1 and three-phase alternating-current supply 9, to avoid welding machine 10 because of short circuit
And the electric current that flows through working direct current electricity is excessive and damages.
Touch screen 71 is for showing the first inverter current signal, the second inverter current signal, welder current signal and electricity
Flow threshold value.
Since fault detection module 6 to the real-time sampling of the electric current of inverter module 3 and welding machine 10 and is exported to mainboard 7, because
This, once inverter module 3 exception occurs or short circuit occurs in welding machine 10, mainboard can judge inverter module 3 in a very short period of time
Whether there is abnormal or short circuit with welding machine 10, and then cut off the connection between rectification module 1 and three-phase alternating-current supply 9 in time, protects
The timeliness to the protection of welding machine, inverter module and rectification module is demonstrate,proved.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. one kind can power alarm power module, which is characterized in that including rectification module, filter module, inverter module, control
Module, drive module, fault detection module, mainboard and transformer；The rectification module is connect with three-phase alternating-current supply, described whole
Flow module is connect with filter module and inverter module respectively, and the filter module and inverter module are parallel with one another；The inversion mould
Block is connect with the transformer, and the rectification module is also connect with the control module, the control module also with the mainboard
Connection, the drive module are connect with the mainboard, and the drive module is also connect with the inverter module, the fault detection
Module is connect with the inverter module, welding machine and mainboard respectively.
2. one kind according to claim 1 can power alarm power module, which is characterized in that the mainboard is also connected with
Touch screen.
3. one kind according to claim 1 can power alarm power module, which is characterized in that the rectification module includes
Silicon-controlled D1, D3 and D5, diode D2, D4 and D6, first input end, the second input terminal, third input terminal, the first output end and
Second output terminal；The first input end, the second input terminal and third input terminal are connect with three-phase alternating-current supply respectively；
The anode of the silicon-controlled D1 and the cathode of diode D2 are connect with first input end respectively, the anode of the silicon-controlled D3
Connect respectively with the second input terminal with the cathode of diode D4, the silicon-controlled D5 anode and diode D6 cathode respectively with
The connection of third input terminal, the cathode of the cathode of the silicon-controlled D1, the cathode of silicon-controlled D3 and silicon-controlled D5 is respectively with described the
The connection of one output end, the anode of the diode D2, the anode of diode D4 and diode D6 anode respectively with described second
Output end connection；
The filter module includes capacitor C1, and the both ends of the capacitor C1 are connect with the first output end and second output terminal respectively；
First output end and second output terminal are also connect with the inverter module respectively.
4. one kind according to claim 3 can power alarm power module, which is characterized in that the inverter module includes
Transistor G1, G2, G3, G4 and the first inversion end and the second inversion end；
The collector of the transistor G1 and the collector of transistor G3 are connect with first output end respectively, the transistor
The emitter of G2 and the emitter of transistor G4 are connect with the second output terminal respectively；
The emitter of the transistor G1 and the collector of transistor G2 are connect with first inversion end respectively, the transistor
The emitter of G3 and the collector of transistor G4 are connect with the second inversion end respectively；Described transistor G1, G2, G3 and G4 are respectively
Insulated gate bipolar transistor, the inverter module are IGBT module.
5. one kind according to claim 4 can power alarm power module, which is characterized in that drive module difference
It is connect with the base stage of transistor G1, G2, G3 and G4, the drive module is IGBT trigger circuit, and the mainboard is single-chip microcontroller.
6. one kind according to claim 4 can power alarm power module, which is characterized in that the transformer include just
Grade coil, secondary coil and diode D7 and D8, the primary coil and secondary coil are mutually matched, the primary coil
Both ends connect respectively with first inversion end and the second inversion end；
The both ends of the secondary coil are connect with the anode of the diode D7 and D8 respectively, the cathode of the diode D7 and D8
It is connect respectively with the positive terminal of the welding machine, the negative pole end of the welding machine is connect with the secondary coil.
7. one kind according to claim 3 can power alarm power module, which is characterized in that described silicon-controlled D1, D3
It is connect respectively with the control module with the control electrode of D5.
8. one kind according to claim 4 can power alarm power module, which is characterized in that the fault detection module
Including inverter current sample circuit and welding current sample circuit, the inverter current sample circuit respectively with first inversion
End is connected with the second inversion end, and the inverter current sample circuit is also connect with the mainboard, the welding current sample circuit
The connection connecting with the welding machine with secondary coil, the welding current sample circuit are also connect with the mainboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820827233.2U CN208613973U (en) | 2018-05-29 | 2018-05-29 | It is a kind of can power alarm power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820827233.2U CN208613973U (en) | 2018-05-29 | 2018-05-29 | It is a kind of can power alarm power module |
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| Publication Number | Publication Date |
|---|---|
| CN208613973U true CN208613973U (en) | 2019-03-19 |
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| CN201820827233.2U Active CN208613973U (en) | 2018-05-29 | 2018-05-29 | It is a kind of can power alarm power module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992865A (en) * | 2020-08-21 | 2020-11-27 | 天津七所高科技有限公司 | Fault detection circuit and method for secondary rectifier module of inverter resistance welding |
-
2018
- 2018-05-29 CN CN201820827233.2U patent/CN208613973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992865A (en) * | 2020-08-21 | 2020-11-27 | 天津七所高科技有限公司 | Fault detection circuit and method for secondary rectifier module of inverter resistance welding |
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