CN207289125U - A kind of electric welding machine protector circuit board - Google Patents
A kind of electric welding machine protector circuit board Download PDFInfo
- Publication number
- CN207289125U CN207289125U CN201721194994.0U CN201721194994U CN207289125U CN 207289125 U CN207289125 U CN 207289125U CN 201721194994 U CN201721194994 U CN 201721194994U CN 207289125 U CN207289125 U CN 207289125U
- Authority
- CN
- China
- Prior art keywords
- electric welding
- module
- welding machine
- circuit board
- modular converters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of electric welding machine protector circuit board is the utility model is related to, it includes AD DC modular converters, relay driving module, magnetic protection drive module, single chip circuit module and electric welding detection module, it is characterised in that：U3 is provided with the AD DC modular converters, the U3 is connected with D6, the D6 is connected with Q4, the Q4 is connected with DB1, D3 and D2, the D3 is connected with X1, the D2 is connected with U4, the U4 is connected with L2, KIA is provided with the relay driving module, the KIA is connected with D1, the D1 is connected with Q3, K2 is provided with the magnetic protection drive module, the K2 is connected with R14 and R15, the R14 is connected with R4, the R15 is connected with R5, U2 is provided with the single chip circuit module, the U2 is connected with J2 and J1, ED2 is provided with the electric welding detection module, the ED2 is connected with J5；Therefore, the utility model has the advantages that energy-saving safe and easy to control.
Description
Technical field
The utility model belongs to electric welding machine protector technical field, and in particular to a kind of electric welding machine protector circuit board.
Background technology
The full name of electric welding machine protector is the unloaded decompression energy-saving protector of electric welding machine secondary.The work of electric welding machine protector is former
Reason is：During electric welder no-load, the A.C. contactor release inside electric welding machine secondary decompression protector, electric current will through voltage drop element
380V voltages are rapidly reduced to 70V or so, are added to welding machine and once hold, and force the secondary output of welding machine there was only 15-20V, reach safety
Energy-saving effect；And when welding rod is run into workpiece and welded by welder, electric welding machine protector receives delivering instruction, just immediately will
A.C. contactor is attracted, 380V control source electric welding machines, electric welding machine is worked into normal weld；Equally, finish when welder welds, electricity
After electric welding machine protector receives information when welding machine is unloaded, A.C. contactor is discharged after handling the 1S that is about delayed, electric current is again through decompression
380V voltages are reduced to 70V or so by element, are circulated successively, reach safety, the ideal effect of energy-saving and environmental protection；Therefore, one is developed
Kind energy-saving safe and electric welding machine protector circuit board easy to control tool are of great significance.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of energy-saving safe and easy to control
Electric welding machine protector circuit board.
What the purpose of this utility model was realized in：A kind of electric welding machine protector circuit board, it includes AD-DC moduluss of conversion
Block, relay driving module, magnetic protection drive module, single chip circuit module and electric welding detection module, the AD-DC moduluss of conversion
U3 is provided with block, the U3 is connected with D6, and the D6 is connected with Q4, and the Q4 is connected with DB1, D3 and D2, the D3 connections
There are X1, the D2 to be connected with U4, the U4 is connected with L2, and KIA, the KIA connections are provided with the relay driving module
There are D1, the D1 to be connected with Q3, be provided with K2 in the magnetic protection drive module, the K2 is connected with R14 and R15, the R14
R4 is connected with, the R15 is connected with R5, U2 is provided with the single chip circuit module, the U2 is connected with J2 and J1, described
ED2 is provided with electric welding detection module, the ED2 is connected with J5.
The AD-DC modular converters are connected to relay driving module.
Width funtion input, AC150V-AC450V power supplies, the compatible exchange of circuit are exchanged in the AD-DC modular converters
220V and 380V power supplys are powered.
2 road voltages, 12V and 5V are exported in the AD-DC modular converters.
The magnetic protection drive module controls for twin coil, and control circuit is controlled respectively by two MOSFET of MCU driving
Pull-in winding and disconnection coil.
The beneficial effects of the utility model：Circuit is by AC-DC conversion circuits, Three-phase magnetic latching relay drive circuit, weldering
Machine output current observation circuit, electrode holder spot welding observation circuit, the part such as work instruction and standby indicating lamp form；Exchange Width funtion
Input, AC150V-AC450V power supplies, the compatible alternating current 220V of circuit and the power supply of 380V power supplys, facilitate phase three-wire three to make when powering
With.Detailed circuit is shown in attached drawing AC-DC conversion circuits；AD-DC conversion circuits export 2 road voltages, 12V and 5V, 12V and are kept to magnetic
The coil power supply of relay and detection power supply is provided for electrode holder, 5V powers to microcontroller and control circuit；Magnetic latching relay is
Twin coil controls, and control circuit controls pull-in winding by two MOSFET of MCU driving and disconnects coil respectively；Current monitoring
Electric current is sampled using punch current transfomer, and secondary converts electrical current into voltage with resistance, and microcontroller gathers the voltage signal simultaneously
Calculating is converted to current value；12DC is output on electric welding machine electrode holder by the opened point of relay on plate, when worker picks up electrode holder
Current loop is formed during spot welding, the electric current is by opto-coupled feedback to the input port of microcontroller；Therefore, the utility model has safety
The advantages of energy saving and easy to control.
Brief description of the drawings
Fig. 1 is a kind of front view of electric welding machine protector circuit board of the utility model.
Fig. 2 is AD-DC modular converter circuit diagrams.
Fig. 3 is relay driving module circuit diagram.
Fig. 4 is that magnetic keeps drive module circuit diagram.
Fig. 5 is single chip circuit module circuit diagram.
Fig. 6 is electric welding detection module circuit diagram.
In figure：1st, AD-DC modular converters 2, relay driving module 3, magnetic keep drive module 4, single chip circuit mould
Block 5, electric welding detection module 6, U3 7, D6 8, Q4 9, X1 10, D3 11, D2 12, L2 13, U4 14, DB1 21, KIA
22、D1 23、Q3 31、K2 32、R14 33、R15 34、R4 35、R5 41、U2 42、J3 43、J2 44、J1 51、ED2
52、J5。
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figures 1 to 6, a kind of electric welding machine protector circuit board, it includes AD-DC modular converters（1）, relay driving
Module（2）, magnetic protection drive module（3）, single chip circuit module（4）With electric welding detection module（5）, the AD-DC moduluss of conversion
Block（1）Inside it is provided with U3（6）, the U3（6）It is connected with D6（7）, the D6（7）It is connected with Q4（8）, the Q4（8）It is connected with
DB1（14）、D3（10）And D2（11）, the D3（10）It is connected with X1（9）, the D2（11）It is connected with U4（13）, the U4
（13）It is connected with L2（12）, the relay driving module（2）Inside it is provided with KIA（21）, the KIA（21）It is connected with D1
（22）, the D1（22）It is connected with Q3（23）, the magnetic protection drive module（3）Inside it is provided with K2（31）, the K2（31）Even
It is connected to R14（32）And R15（33）, the R14（32）It is connected with R4（34）, the R15（33）It is connected with R5（35）, the monolithic
Login module（4）Inside it is provided with U2（41）, the U2（41）It is connected with J2（43）And J1（44）, the electric welding detection module
（5）Inside it is provided with ED2（51）, the ED2（51）It is connected with J5（52）.
The Three-phase magnetic latching relay power supply that the power supply of electric welding machine is driven through this circuit in the utility model, circuit control
Magnetic latching relay, which is reasonably attracted and disconnects, can play safe and energy saving purpose.Because electric welding machine is in powered and inoperative
In the case of, secondary has the high voltage of 50-100V, the safe voltage that can bear far beyond the person.Meanwhile electric welding machine
Also there is a primary current consumption when being powered and not working.This circuit is controlled by microcontroller, is disconnected three-phase magnetic first after the power is turned on and is protected
Hold relay, electric welding machine does not have a power supply power supply, and the small relay on singlechip control panel is attracted, the 12V of AD-DC circuit outputs
Normally opened contact of the power supply through small relay on plate is connected on electrode holder, while detects the point welding signal of electrode holder, when electrode holder starts spot welding
When, 12V signals produce a current signal on the light emitting diode of optocoupler, and the phototriode conducting of optocoupler exports low electricity
Flat, microcontroller detects the small relay disconnected after this low level on plate, and normally-closed contact of the 12V power supplys through relay gives magnetic to protect
The coil power supply of relay is held, MCU driving Three-phase magnetic latching relay makes electric welding machine obtain power supply, starts normal weld, weldering
Current transformer detection weldering operating current, cuts off magnetic latching relay when electric current drops to standby current, makes electricity when machine works
Welding machine is in off-mode, is again attracted the small relay on plate, there was only the DC voltage of a 12V on electrode holder, again point
Circuit control electric welding machine re-powers during weldering, above flow is repeated, so as to play the purpose of energy-saving safe.
Embodiment 2
As shown in figures 1 to 6, a kind of electric welding machine protector circuit board, it includes AD-DC modular converters（1）, relay driving
Module（2）, magnetic protection drive module（3）, single chip circuit module（4）With electric welding detection module（5）, the AD-DC moduluss of conversion
Block（1）Inside it is provided with U3（6）, the U3（6）It is connected with D6（7）, the D6（7）It is connected with Q4（8）, the Q4（8）It is connected with
DB1（14）、D3（10）And D2（11）, the D3（10）It is connected with X1（9）, the D2（11）It is connected with U4（13）, the U4
（13）It is connected with L2（12）, the relay driving module（2）Inside it is provided with KIA（21）, the KIA（21）It is connected with D1
（22）, the D1（22）It is connected with Q3（23）, the magnetic holding drive module（3）Inside it is provided with K2（31）, the K2（31）Even
It is connected to R14（32）And R15（33）, the R14（32）It is connected with R4（34）, the R15（33）It is connected with R5（35）, the monolithic
Login module（4）Inside it is provided with U2（41）, the U2（41）It is connected with J2（43）And J1（44）, the electric welding detection module
（5）Inside it is provided with ED2（51）, the ED2（51）It is connected with J5（52）；The AD-DC modular converters（1）It is connected to relay drive
Dynamic model block（2）；The AD-DC modular converters（1）Middle exchange Width funtion input, AC150V-AC450V power supplies, circuit are compatible
Alternating current 220V and the power supply of 380V power supplys, the AD-DC modular converters（1）2 road voltages of middle output, 12V and 5V；The magnetic protection is driven
Dynamic model block（3）Controlled for twin coil, control circuit controls pull-in winding and striping respectively by two MOSFET of MCU driving
Circle.
Embodiment is unrestricted to the further explanation of the utility model, and those of ordinary skill in the art are come
Say and do further conversion to structure in the case where not departing from the utility model in essence content, and all these conversion should all belong to
The protection domain of the appended claims for the utility model.
Claims (5)
1. a kind of electric welding machine protector circuit board, it includes AD-DC modular converters, relay driving module, magnetic protection driving mould
Block, single chip circuit module and electric welding detection module, it is characterised in that：U3, the U3 are provided with the AD-DC modular converters
D6 is connected with, the D6 is connected with Q4, and the Q4 is connected with DB1, D3 and D2, and the D3 is connected with X1, and the D2 is connected with U4,
The U4 is connected with L2, and KIA is provided with the relay driving module, and the KIA is connected with D1, and the D1 is connected with Q3,
K2 is provided with the magnetic protection drive module, the K2 is connected with R14 and R15, and the R14 is connected with R4, the R15 connections
There is R5, U2 is provided with the single chip circuit module, the U2 is connected with J2 and J1, is provided with the electric welding detection module
ED2, the ED2 are connected with J5.
A kind of 2. electric welding machine protector circuit board according to claim 1, it is characterised in that：The AD-DC modular converters
It is connected to relay driving module.
A kind of 3. electric welding machine protector circuit board according to claim 1, it is characterised in that：The AD-DC modular converters
Middle exchange Width funtion input, AC150V-AC450V power supplies, the compatible alternating current 220V of circuit and the power supply of 380V power supplys.
A kind of 4. electric welding machine protector circuit board according to claim 1, it is characterised in that：The AD-DC modular converters
2 road voltages of middle output, 12V and 5V.
A kind of 5. electric welding machine protector circuit board according to claim 1, it is characterised in that：The magnetic protects drive module
Controlled for twin coil, control circuit controls pull-in winding by two MOSFET of MCU driving and disconnects coil respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194994.0U CN207289125U (en) | 2017-09-18 | 2017-09-18 | A kind of electric welding machine protector circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721194994.0U CN207289125U (en) | 2017-09-18 | 2017-09-18 | A kind of electric welding machine protector circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207289125U true CN207289125U (en) | 2018-05-01 |
Family
ID=62441859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721194994.0U Expired - Fee Related CN207289125U (en) | 2017-09-18 | 2017-09-18 | A kind of electric welding machine protector circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207289125U (en) |
-
2017
- 2017-09-18 CN CN201721194994.0U patent/CN207289125U/en not_active Expired - Fee Related
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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: 20180501 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |