CN2535176Y - DC supply type gas welding-cutting machine - Google Patents
DC supply type gas welding-cutting machine Download PDFInfo
- Publication number
- CN2535176Y CN2535176Y CN 02216531 CN02216531U CN2535176Y CN 2535176 Y CN2535176 Y CN 2535176Y CN 02216531 CN02216531 CN 02216531 CN 02216531 U CN02216531 U CN 02216531U CN 2535176 Y CN2535176 Y CN 2535176Y
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- CN
- China
- Prior art keywords
- cutting machine
- gas welding
- electrical energy
- direct current
- welding
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- 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 - Lifetime
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Abstract
A vapor welding-cutting machine with direct current power supply comprises a direct current machine in the prior art and PWM pulse-width regulation circuit. A direct current supply and an electrical energy converter are arranged on the vapor welding-cutting machine. The electrical energy converter is provided with an existing pressure upgrade circuit. The direct current output terminal of the electrical energy converter is connected with the input terminal of the PWM pulse-width regulation circuit of the vapor welding-cutting machine. A direct current electric machine is driven by the PWM pulse-width regulation circuit. The electrical energy converter also can adopt the direct current conversion of electrical energy machine that is provided with AC output. An AC output terminal is connected with the input terminal of rectification circuit of the vapor welding-cutting machine to output alternating current to the rectification circuit of the vapor welding-cutting machine. With the completion of commutation, the direct current machine is driven by the PWM pulse-width regulation circuit. The utility model can not only directly output alternating voltage to the PWM pulse-width regulation circuit of the vapor welding-cutting machine but also output the alternating voltage to the rectification circuit of the vapor welding-cutting machine, thus avoiding that a power cord does not need to be used to connect the vapor welding-cutting machine with fixed AC supply. So the safety performance of the utility model is improved. In addition, the self-supplying vapor welding-cutting machine has larger moving range, which is easier to be used.
Description
Technical field:
The utility model relates to a kind of flame weld metal and flame cutting metal device, particularly a kind of gas flame welding and flame-cutting plant, especially a kind of DC power supply gas welding-cutting machine.
Background technology:
In the prior art, the gas welding-cutting machine comprises direct current generator, PWM pulse wide modulation circuit and rectification circuit, the mechanical movement of direct current generator output mechanical energy driving gas welding-cutting machine wherein, PWM pulse wide modulation circuit wherein provides the rotating speed of electric energy and control direct current generator to direct current generator, the gas welding-cutting machine has an alternating current input, rectification circuit wherein provides the energy with the direct current of AC rectification voltage between 400V-200V to PWM pulse wide modulation circuit, needs power line that the gas welding-cutting machine is connected with AC power during use.
Summary of the invention:
Technical problem to be solved in the utility model is: because in the prior art; the gas welding-cutting machine adopts alternating current as the energy; need power line that the gas welding-cutting machine is connected with AC power; so use inconvenient; simultaneously; the gas welding-cutting machine is applied to the operation field of metal material usually, and the power line wearing and tearing that the gas welding-cutting machine is connected have an accident because of the insulating barrier wearing and tearing of power line through regular meeting.The utility model is that the technical scheme that solution above-mentioned technical problem of the prior art is adopted provides a kind of DC power supply gas welding-cutting machine, described this DC power supply gas welding-cutting machine comprises a gas welding-cutting machine in the prior art, comprise direct current generator and PWM pulse wide modulation circuit in the prior art in the gas welding-cutting machine in the described prior art, wherein, gas welding-cutting machine in the described prior art is provided with the dc source in the prior art, gas welding-cutting machine in the described prior art is provided with the electrical energy transformer in the prior art, include the voltage lifting circuit in the prior art in the described electrical energy transformer, described dc source and described electrical energy transformer are fixed on the gas welding-cutting machine, described dc source is connected to the direct-flow input end of described electrical energy transformer, the dc output end of described electrical energy transformer is connected to the input of the PWM pulse wide modulation circuit in the gas welding-cutting machine, its course of work is: be fixed on dc-battery on the gas welding-cutting machine by the voltage lifting circuit in the electrical energy transformer, the input of the PWM pulse wide modulation circuit in the gas welding-cutting machine provides electric energy, described PWM pulse wide modulation circuit drives direct current generator work; In the utility model, electrical energy transformer in the described prior art can also adopt and include the direct current energy converter that exchanges output, the ac output end of described electrical energy transformer is connected to the alternating current input of gas welding-cutting machine of the prior art, its course of work is: the dc-battery that is fixed on the gas welding-cutting machine improves voltage by the voltage lifting circuit in the electrical energy transformer, and the rectification circuit of output AC electricity in the gas welding-cutting machine of the prior art, the work of the PWM pulse wide modulation circuit drives direct current generator in the gas welding-cutting machine again.The utility model and prior art contrast, because on the gas welding-cutting machine, fixedly installed dc source and the electrical energy transformer in the prior art, both can press to the PWM pulse wide modulation circuit direct output of DC current in the gas welding-cutting machine, also can be to the rectification circuit output AC voltage in the gas welding-cutting machine, so can avoid using power line that the gas welding-cutting machine is connected with fixing AC power, improved security performance, simultaneously, the gas welding-cutting machine mobile range that carries the energy is bigger, uses more convenient.
Description of drawings:
Fig. 1 is the schematic diagram of a kind of DC power supply gas of the utility model welding-cutting machine,
Fig. 2 is the circuit diagram of the electrical energy transformer that adopted among the embodiment of a kind of DC power supply gas of the utility model welding-cutting machine.
The specific embodiment:
As shown in Figure 1, a kind of DC power supply gas of the utility model welding-cutting machine, comprise a gas welding-cutting machine 1 in the prior art, comprise direct current generator and PWM pulse wide modulation circuit in the prior art in the gas welding-cutting machine 1 in the described prior art, wherein, gas welding-cutting machine 1 in the described prior art is provided with the dc source 2 in the prior art, gas welding-cutting machine 1 in the described prior art is provided with the electrical energy transformer 3 in the prior art, include the voltage lifting circuit in the prior art in the described electrical energy transformer 3, described dc source 2 and described electrical energy transformer 3 are fixed on the gas welding-cutting machine 1, described dc source 2 is connected to the direct-flow input end of described electrical energy transformer 3, the dc output end of described electrical energy transformer 3 is connected to the input of the PWM pulse wide modulation circuit in the described gas welding-cutting machine 1, its course of work is: be fixed on dc-battery on the gas welding-cutting machine by the voltage lifting circuit in the electrical energy transformer, the input of the PWM pulse wide modulation circuit in the gas welding-cutting machine provides electric energy, described PWM pulse wide modulation circuit drives direct current generator work, in an embodiment of the present utility model, the lead-acid batteries that described dc source 2 adopts in the prior art.In the utility model, electrical energy transformer 3 in the described prior art can also adopt and include the direct current energy converter that exchanges output, the ac output end of described electrical energy transformer 3 is connected to the alternating current input of gas welding-cutting machine 1 of the prior art, its course of work is: the dc-battery 2 that is fixed on the gas welding-cutting machine improves voltage by the voltage lifting circuit in the electrical energy transformer 3, and the rectification circuit of output AC electricity in the gas welding-cutting machine 1 of the prior art, after rectification, the work of the PWM pulse wide modulation circuit drives direct current generator in gas welding-cutting machine 1 again.An embodiment of the present utility model as shown in Figure 2, include direct current in the prior art in the described electrical energy transformer 3 to ac conversion circuit, voltage lifting circuit and rectification circuit, described dc source 2 is connected to the direct-flow input end of described electrical energy transformer 3, described electrical energy transformer 3 provides a dc output end and an ac output end, can be connected respectively to the PWM pulse wide modulation circuit or the rectification circuit of gas welding-cutting machine 1.
Claims (2)
1, a kind of DC power supply gas welding-cutting machine, comprise a gas welding-cutting machine in the prior art, comprise direct current generator and PWM pulse wide modulation circuit in the prior art in the gas welding-cutting machine in the described prior art, it is characterized in that: described gas welding-cutting machine is provided with dc source, described gas welding-cutting machine is provided with electrical energy transformer, the DC voltage that includes in the described electrical energy transformer in the prior art promotes circuit, described dc source is connected to the direct-flow input end of described electrical energy transformer, and the dc output end of described electrical energy transformer is connected to the input of the PWM pulse wide modulation circuit in the described gas welding-cutting machine.
2, a kind of DC power supply gas welding-cutting machine as claimed in claim 1, it is characterized in that: include ac output end in the described electrical energy transformer, include the rectification circuit in the prior art in the described gas welding-cutting machine, described ac output end is connected to the rectification circuit in the described gas welding-cutting machine, and the rectification circuit in the described gas welding-cutting machine is connected to the PWM pulse wide modulation circuit in the described gas welding-cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216531 CN2535176Y (en) | 2002-04-02 | 2002-04-02 | DC supply type gas welding-cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216531 CN2535176Y (en) | 2002-04-02 | 2002-04-02 | DC supply type gas welding-cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2535176Y true CN2535176Y (en) | 2003-02-12 |
Family
ID=33695510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216531 Expired - Lifetime CN2535176Y (en) | 2002-04-02 | 2002-04-02 | DC supply type gas welding-cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2535176Y (en) |
-
2002
- 2002-04-02 CN CN 02216531 patent/CN2535176Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120405 Granted publication date: 20030212 |