CN202824932U - Electric welding machine control module - Google Patents
Electric welding machine control module Download PDFInfo
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- CN202824932U CN202824932U CN 201220264687 CN201220264687U CN202824932U CN 202824932 U CN202824932 U CN 202824932U CN 201220264687 CN201220264687 CN 201220264687 CN 201220264687 U CN201220264687 U CN 201220264687U CN 202824932 U CN202824932 U CN 202824932U
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- pwm signal
- control module
- electric welding
- welding machine
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Abstract
The utility model provides an electric welding machine control module, and belongs to the field of electric welding machines. The problem of low control accuracy of an existing electric welding machine is solved. The electric welding machine control module comprises an auxiliary electricity module used for generating auxiliary voltage, a full bridge inversion module, control modules and a pulse width modulation (PWM) signal generation module, wherein the auxiliary electricity module comprises a power supply control module generating a first PWM signal, a voltage conversion module, a plurality of low voltage output modules, wherein the voltage conversion module generates alternative pulses according to the first PWM signal and converts high voltage power supply according to the alternative pulses. The plurality of low voltage output modules are connected with the voltage conversion module and used for outputting low voltage power supply. Various control modules of the electric welding machine control module are integrated so that miniaturization of the control modules is achieved. Meanwhile, the auxiliary electricity module is adopted to stabilize power supply of the control modules so as to improve control accuracy of the control modules.
Description
Technical field
The utility model relates to the electric welding machine technical field, relates in particular to a kind of electric welding machine control module.
Background technology
Electric welding machine refers to that the high-temperature electric arc that utilizes positive and negative polarities to produce dissolves scolder and the materials to be welded on the welding rod, reaches the purpose that makes their combination when instantaneous short circuit.Existing electric welding machine all adopts simple control device for saving cost, causes the welding precision of electric welding machine lower, welding performance is affected.
The utility model content
Technical problem to be solved in the utility model is, for the above-mentioned deficiency of prior art, proposes the higher electric welding machine control module of a kind of compact conformation, small volume and control accuracy.
The technical scheme that its technical problem that solves the utility model adopts is, propose a kind of electric welding machine control module, it comprises auxiliary electric module for generation of boost voltage, is used for high voltage source is converted to full-bridge inverting module, control module and the pwm signal generation module of dc source; Described auxiliary electric module comprises the energy supply control module that generates the first pwm signal, be used for according to the first pwm signal generation alternating-current pulse and according to the voltage transformation module of this alternating-current pulse with the high voltage source conversion a plurality of low pressure output modules that are connected in voltage transformation module and are used for the output low-tension supply; Described control module comprises the relatively generation error signal according to given signal and feedback signal, and according to this error signal control pwm signal generation module so that the comparison module of the outputting current steadily of pwm signal generation module, the amplification module that the second pwm signal that is used for that the pwm signal generation module is produced amplifies.
Further, described control module also comprises protection module, and described protection module comprises the temperature-sensitive element of collecting temperature, and protection module is according to the break-make of the temperature control pwm signal generation module of temperature-sensitive element.
Further, described pwm signal generation module also comprises constant-current control module, power initiation control module.
Further, described energy supply control module comprises the power supply control chip that produces the first pwm signal, produce the FET of alternating-current pulse according to the first pwm signal, receive the transformer of this alternating-current pulse, described transformer comprise one elementary and a plurality of secondary, each secondary corresponding low pressure output module.
Further, described power supply control chip is the UC3843 chip, and described FET is the K3878 FET.
Further, described pwm signal generation module produces the second pwm signal by SG3525 or SG3524.
The utility model reaches the miniaturization of control module by all kinds of control module set unification bodies of electric welding machine, adopts simultaneously auxiliary electric module to stablize the power supply supply of control module, so that the control accuracy of control module improves.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model electric welding machine control module;
Fig. 2 is the physical circuit figure of auxiliary electric module, full-bridge inverting module and control module;
Fig. 3 is the physical circuit figure of pwm signal generation module.
The specific embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Please refer to Fig. 1, Fig. 1 is the schematic block circuit diagram of the utility model electric welding machine control module.The electric welding machine control module comprises auxiliary electric module 1, full-bridge inverting module 2, control module 3 and pwm signal generation module 4.Auxiliary electric module 1 comprises energy supply control module 10, voltage transformation module 11 and a plurality of low pressure output module 12.Energy supply control module 10 is used for generating a PWM (pulse width modulation) signal, voltage transformation module 11 is used for according to this first pwm signal generation alternating-current pulse and according to this alternating-current pulse high voltage source being changed, and a plurality of low pressure output modules 12 are connected in all kinds of low-tension supplies that are suitable for the circuit use of voltage transformation module 11 outputs.
Full-bridge inverting module 2 is connected in high voltage source and it is changed rear output DC source.
The physical circuit figure of the utility model electric welding machine control module such as Fig. 2, shown in Figure 3, wherein Fig. 2 is the physical circuit figure of auxiliary electric module, full-bridge inverting module and control module, Fig. 3 is the physical circuit figure of pwm signal generation module 4.In the present embodiment, energy supply control module 10 comprises power supply control chip UC3843, and voltage transformation module 11 comprises FET and transformer, and each low pressure output module 12 comprises electric capacity, resistance and diode.Break-make, FET source class that power supply control chip UC3843 produces the first pwm signal control FET access high-voltage DC power supply by transformer, because FET produces alternating-current pulse so that also produce alternating-current pulse on the primary under the control of the first pwm signal, according to electromagnetic induction principle as can be known, also produce alternating-current pulse on a plurality of transformer secondary outputs.FET is preferably the K3878 FET.The corresponding low pressure output module 12 of each transformer secondary output.The alternating-current pulse that transformer secondary output produces is through the dissimilar low-voltage dc power supply of output after diode rectification, capacitor filtering and the resistance step-down.In the present embodiment, the low-voltage dc power supply of low pressure output module 12 output have the 24V dc source ,+the 15V dc source and-the 15V dc source.Wherein the 24V dc source also can be delivered to power supply control chip UC3843 so that output voltage stabilization with feedback signal through feedback network.
4 triodes alternate conduction and turn-off to produce alternating-current pulse in twos in the second pwm signal control full bridge inverter that full-bridge inverting module 2 is produced by pwm signal generation module 4, this alternating-current pulse through main transformer rectifying and wave-filtering after the output DC source.The dc source that the dc source that auxiliary electric module 1 produces and full-bridge inverting module 2 produce is powered to control module jointly.
Pwm signal generation module 4 utilizes all kinds of PWM to produce chip, produces the second pwm signal such as SG3525, SG3524 etc.In addition, pwm signal generation module 4 also comprises constant-current control module, circuit start control module etc., and those modules adopt custom circuit to connect and get final product, and do not repeat them here.
The utility model reaches the miniaturization of control module by all kinds of control module set unification bodies with electric welding machine, adopts simultaneously auxiliary electric module to stablize the power supply supply of control module, so that the control accuracy of control module improves.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. electric welding machine control module is characterized in that: comprise auxiliary electric module for generation of boost voltage, be used for high voltage source is converted to full-bridge inverting module, control module and the pwm signal generation module of dc source; Described auxiliary electric module comprises the energy supply control module that generates the first pwm signal, be used for according to the first pwm signal generation alternating-current pulse and according to the voltage transformation module of this alternating-current pulse with the high voltage source conversion a plurality of low pressure output modules that are connected in voltage transformation module and are used for the output low-tension supply; Described control module comprises the relatively generation error signal according to given signal and feedback signal, and according to this error signal control pwm signal generation module so that the comparison module of the outputting current steadily of pwm signal generation module, the amplification module that the second pwm signal that is used for that the pwm signal generation module is produced amplifies.
2. electric welding machine control module as claimed in claim 1; it is characterized in that: described control module also comprises protection module; described protection module comprises the temperature-sensitive element of collecting temperature, and protection module is according to the break-make of the temperature control pwm signal generation module of temperature-sensitive element.
3. such as claim 1 described electric welding machine control module, it is characterized in that: described pwm signal generation module also comprises constant-current control module, power initiation control module.
4. electric welding machine control module as claimed in claim 1, it is characterized in that: described energy supply control module comprises the power supply control chip that produces the first pwm signal, produce the FET of alternating-current pulse according to the first pwm signal, receive the transformer of this alternating-current pulse, described transformer comprise one elementary and a plurality of secondary, each secondary corresponding low pressure output module.
5. electric welding machine control module as claimed in claim 4, it is characterized in that: described power supply control chip is the UC3843 chip, described FET is the K3878 FET.
6. such as claim 1 or 5 described electric welding machine control modules, it is characterized in that: described pwm signal generation module produces the second pwm signal by SG3525 or SG3524.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264687 CN202824932U (en) | 2012-05-24 | 2012-05-24 | Electric welding machine control module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264687 CN202824932U (en) | 2012-05-24 | 2012-05-24 | Electric welding machine control module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824932U true CN202824932U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264687 Expired - Fee Related CN202824932U (en) | 2012-05-24 | 2012-05-24 | Electric welding machine control module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406643A (en) * | 2013-06-28 | 2013-11-27 | 天顺风能(苏州)股份有限公司 | Alternating current/direct current double-wire welding operation controller |
| CN103600156A (en) * | 2013-10-22 | 2014-02-26 | 浙江劳士顿焊接设备有限公司 | Welding machine capable of identifying and switching double voltages automatically |
| CN103737155A (en) * | 2014-01-06 | 2014-04-23 | 山东大学 | Single-phase full-bridge inversion topological magnetic biasing staged processing circuit and method |
| CN106077897A (en) * | 2016-07-13 | 2016-11-09 | 苏州新逸喆电子科技有限公司 | A kind of portable mobile wireless electric welding machine |
| CN106180978A (en) * | 2016-08-09 | 2016-12-07 | 上海广为焊接设备有限公司 | Inversion gas shield welding constant current constant voltage control system based on wire feed modulation and method |
-
2012
- 2012-05-24 CN CN 201220264687 patent/CN202824932U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406643A (en) * | 2013-06-28 | 2013-11-27 | 天顺风能(苏州)股份有限公司 | Alternating current/direct current double-wire welding operation controller |
| CN103600156A (en) * | 2013-10-22 | 2014-02-26 | 浙江劳士顿焊接设备有限公司 | Welding machine capable of identifying and switching double voltages automatically |
| CN103737155A (en) * | 2014-01-06 | 2014-04-23 | 山东大学 | Single-phase full-bridge inversion topological magnetic biasing staged processing circuit and method |
| CN103737155B (en) * | 2014-01-06 | 2015-04-29 | 山东大学 | Single-phase full-bridge inversion topological magnetic biasing staged processing circuit and method |
| CN106077897A (en) * | 2016-07-13 | 2016-11-09 | 苏州新逸喆电子科技有限公司 | A kind of portable mobile wireless electric welding machine |
| CN106180978A (en) * | 2016-08-09 | 2016-12-07 | 上海广为焊接设备有限公司 | Inversion gas shield welding constant current constant voltage control system based on wire feed modulation and method |
| CN106180978B (en) * | 2016-08-09 | 2019-05-17 | 上海广为焊接设备有限公司 | Inversion gas shield welding constant current constant voltage control system and method based on wire feed modulation |
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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 |
Granted publication date: 20130327 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |