CN213410768U - Power supply system of electron beam welding machine - Google Patents
Power supply system of electron beam welding machine Download PDFInfo
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- CN213410768U CN213410768U CN202021923913.8U CN202021923913U CN213410768U CN 213410768 U CN213410768 U CN 213410768U CN 202021923913 U CN202021923913 U CN 202021923913U CN 213410768 U CN213410768 U CN 213410768U
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Abstract
The utility model provides an electronic beam welding machine's electrical power generating system relates to electronic beam welding machine's technical field, include: the lamp comprises a power supply transformer, a filament power supply, a grid power supply and a high-voltage power supply; the output winding of the power supply transformer is connected with the input ends of the filament power supply and the grid power supply, the filament power supply and the grid power supply are connected in series, and the output end of the grid power supply is connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer is used for respectively supplying power to the filament power supply and the grid power supply. In this application, the high voltage output end through high voltage power supply is connected with the one end of power supply transformer's output winding, and this connecting wire provides the current path for the charge release of storage in the electrical power generating system when striking sparks to solve traditional electron beam welding machine and damage filament power and grid power when electron gun strikes sparks, and then influence the technical problem of equipment normal operating.
Description
Technical Field
The utility model belongs to the technical field of electron beam welding machine's technique and specifically relates to a power supply system of electron beam welding machine is related to.
Background
Electron beam welding is one kind of high energy beam welding, and has high energy density, great depth-to-width ratio of welding seam, less welding deformation, high controllable precision, pure welding seam, etc. and is used widely in aeronautics and astronautics, automobile, electronic, nuclear industry and other fields. The electron beam welding machine usually adopts a three-stage gun, namely, the electron gun comprises a filament and a grid, the filament of the electron gun is heated by a filament power supply and then escapes electrons, the high-voltage electron beam current, namely the welding energy, is controlled by a grid power supply, and the high-voltage power supply provides an electric field for electron acceleration.
In order to ensure the stability of electron beam welding, the power supply of the electron beam welding machine requires stable output and low ripple of the filament power supply, and the grid power supply also requires quick rising and falling time of the output besides stable output and low ripple. Because the filament and the grid power supply are positioned at the high potential end of the high voltage power supply, and because of the internal structure of the electron gun, when the inside of the electron gun is ignited, high potential charges in the filament and the grid power supply are released to generate large current, the filament and the grid power supply are generally easy to damage, and the high potential charges are one of the main failure reasons of the current electron beam welding machine power supply and seriously affect the reliability of the electron beam welding machine power supply.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electron beam welding machine's electrical power generating system to it damages filament power and grid power when striking sparks to have alleviated traditional electron beam welding machine, and then influences the technical problem of equipment normal operating.
The utility model provides a pair of power supply system of electron beam welding machine, include: the lamp comprises a power supply transformer, a filament power supply, a grid power supply and a high-voltage power supply; the number of the output windings of the power supply transformer is at least one, the output windings of the power supply transformer are connected with the input ends of the filament power supply and the grid power supply, and one end of each output winding is electrically connected with the high-voltage output end of the high-voltage power supply; the filament power supply is connected with the grid power supply in series, and the output end of the grid power supply is connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer is used for respectively supplying power to the filament power supply and the grid power supply.
Furthermore, the number of the output windings is one, and two ends of the output windings are respectively connected with the filament power supply and the input end of the grid power supply.
Furthermore, the number of the output windings is one, and a center tap is arranged in each output winding; one end of the output winding and the center tap are connected with the input end of the filament power supply; the other end of the output winding and the center tap are connected with the input end of the grid power supply.
Further, the number of the output windings is two; the two output windings are respectively connected with the filament power supply and the grid power supply, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
Further, the filament power supply includes: a first half-wave rectifier circuit and a first BUCK circuit, the gate power supply including: the second half-wave rectifying circuit, the second BUCK circuit and the boosting module; the current input into the filament power supply is rectified by the first half-wave rectifying circuit, and then is output after being subjected to voltage regulation by the first BUCK circuit; and the current input into the grid power supply is rectified by the second half-wave rectifying circuit, subjected to voltage regulation by the second BUCK circuit, subjected to voltage boosting processing by the voltage boosting module and then output.
Furthermore, the number of the output windings is two, and each output winding is correspondingly provided with a center tap; the two output windings are respectively connected to the filament power supply and the input end of the grid power supply through a center tap, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
Further, the filament power supply includes: a first full-wave rectification circuit and a first BUCK circuit, the gate power supply including: a second full-wave rectifying circuit, a second BUCK circuit and a booster circuit; the current input into the filament power supply is rectified by a first full-wave rectifying circuit, then is subjected to voltage regulation by a first BUCK circuit and is output; the current input into the grid power supply is rectified by the second full-wave rectifying circuit, then regulated by the second BUCK circuit, boosted by the booster circuit and output.
Further, a series connection end between the filament power supply and the grid power supply is connected with a high-voltage output end of the high-voltage power supply.
Further, the series connection end is a negative output end of the filament power supply and a positive power transmission end of the grid power supply, the negative output end of the filament power supply is connected with the positive power transmission end of the grid power supply in series, and the negative output end of the filament power supply and the positive power transmission end of the grid power supply are connected with a high-voltage output end of the high-voltage power supply.
The utility model provides a pair of power supply system of electron beam welding machine, include: the lamp comprises a power supply transformer, a filament power supply, a grid power supply and a high-voltage power supply; the output windings of the power supply transformer are respectively connected with the input ends of the filament power supply and the grid power supply, the filament power supply and the grid power supply are connected in series, and the output ends of the filament power supply and the grid power supply are connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer is used for respectively supplying power to the filament power supply and the grid power supply. According to the above description, in the present application, the high voltage output end of the high voltage power supply is connected to one end of the output winding of the power supply transformer, and the connecting line provides a current path for releasing the charges stored in the power supply system when the electron gun is ignited, so as to solve the technical problem that the filament power supply and the grid power supply are damaged when the electron gun is ignited by the conventional electron beam welding machine, and further normal operation of the equipment is affected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a power supply system of an electron beam welding machine according to an embodiment of the present invention;
FIG. 2 is a first embodiment of a power supply system for an electron beam welding machine according to an embodiment of the present invention;
FIG. 3 is a second embodiment of a power supply system for an electron beam welding machine according to an embodiment of the present invention;
FIG. 4 is a second embodiment of a power supply system for an electron beam welding machine according to an embodiment of the present invention;
FIG. 5 is a fourth embodiment of a power supply system for an electron beam welding machine according to an embodiment of the present invention;
fig. 6 is a fifth embodiment of a power supply system of an electron beam welding machine according to an embodiment of the present invention.
Icon: 10-a supply transformer; 20-filament power supply; 30-a gate power supply; 40-high voltage power supply.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
the utility model provides an electron beam welding machine's electrical power generating system, as shown in figure 1, include: a power supply transformer 10, a filament power supply 20, a grid power supply 30 and a high voltage power supply 40; the number of the output windings of the power supply transformer is at least one, the output windings of the power supply transformer are connected with the input ends of the filament power supply and the grid power supply, and one end of each output winding is electrically connected with the high-voltage output end of the high-voltage power supply; the filament power supply is connected with the grid power supply in series, and the output end of the grid power supply is connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer is used for respectively supplying power to the filament power supply and the grid power supply.
It should be noted that, one end of the output winding of the power supply transformer 10 is connected to the high-voltage output end of the high-voltage power supply 40, and the output winding of the power supply transformer plays a role of effective isolation of potential, and provides a current path for releasing charges stored in the power supply system during ignition, so as to prevent the filament power supply and the grid power supply from being damaged during ignition of the electron gun.
In the present application, the power supply transformer 10 serves to convert a low voltage of its own input winding into a high voltage and output the high voltage through its own output winding to supply the high voltage to the filament power supply 20 and the grid power supply 30.
In the present application, the filament power supply 20 is configured to provide electric energy to the filament when the filament is in a power-on state, so that the filament converts the electric energy into heat energy, and heats itself through the heat energy.
In the present application, the grid power supply 30 is configured to provide power for the grid, wherein after the grid is turned on, a reverse electric field (when the positive electrode output by the grid is connected to the high voltage output end of the high voltage power supply, the negative electrode is suspended, and at this time, a reverse electric field is formed) or a positive electric field (when the positive electrode output by the grid is connected to the high voltage output end of the high voltage power supply, the negative electrode output by the grid is connected to the filament, and at this time, a positive electric field is formed) is formed between the grid and the filament, and the reverse electric field is configured to control the energy (high.
The larger the electric field intensity of the counter electric field formed between the grid and the filament is, the smaller the energy (high voltage current) of the electron beam emitted from the filament is; conversely, the greater the energy (high voltage current) of the electron beam emitted by the filament. The higher the electric field strength forming a positive electric field between the grid and the filament, the higher the energy (high-voltage current) of the electron beam emitted by the filament; conversely, the smaller the energy (high voltage current) of the electron beam emitted by the filament power supply.
In the present application, a positive electric field is formed between the ground terminal of the high voltage power supply 40 and the filament, wherein the positive electric field is used for increasing the moving speed of the electron beam.
It should be noted that, the larger the electric field intensity of the positive electric field of the high-voltage power supply is, the faster the moving speed of the electron beam emitted by the filament is; conversely, the slower the speed of movement of the electron beam from the filament.
The utility model provides a pair of power supply system of electron beam welding machine, include: the lamp comprises a power supply transformer, a filament power supply, a grid power supply and a high-voltage power supply; the output windings of the power supply transformer are respectively connected with the input ends of the filament power supply and the grid power supply, the filament power supply and the grid power supply are connected in series, and the output ends of the filament power supply and the grid power supply are connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer is used for respectively supplying power to the filament power supply and the grid power supply. According to the above description, in the present application, the high voltage output end of the high voltage power supply is connected to one end of the output winding of the power supply transformer, and the connecting line provides a current path for releasing the charges stored in the power supply system when the electron gun is ignited, so as to solve the technical problem that the filament power supply and the grid power supply are damaged when the electron gun is ignited by the conventional electron beam welding machine, and further normal operation of the equipment is affected.
In an alternative embodiment, the number of the output windings is one, and two ends of the output windings are respectively connected with the input ends of the filament power supply and the grid power supply.
It should be noted that, as shown in fig. 2, one end of the output winding may be directly connected to the high-voltage output end of the high-voltage power supply by using an electric wire;
and/or a filament power supply and a grid power supply are arranged between one end of the output winding and the high-voltage output end of the high-voltage power supply.
In an alternative embodiment, the first input terminal of the filament power supply is connected to the first output terminal of the filament power supply, the first input terminal of the filament power supply is connected to the first lead-out terminal of the output winding, and the first output terminal of the filament power supply is connected to the high-voltage output terminal of the high-voltage power supply.
That is, as shown in fig. 2, one lead-out terminal of the output winding is connected to a first input terminal of the filament power supply, the first input terminal is connected to a first output terminal of the filament power supply by using a wire, and the first output terminal is connected to a high-voltage output terminal of the high-voltage power supply.
In an optional embodiment, the first input terminal of the gate power supply is connected to the first output terminal of the gate power supply, the first input terminal of the gate power supply is connected to the second terminal of the output winding, and the first output terminal of the gate power supply is connected to the high-voltage output terminal of the high-voltage power supply, wherein the first terminal and the second terminal are the same terminal or different terminals.
That is, as shown in fig. 2, one of the terminals of the output winding is connected to a first input terminal of the grid power supply, which is connected to a first output terminal of the grid power supply by a wire, and the first output terminal is connected to a high-voltage output terminal of the high-voltage power supply.
As shown in fig. 2, the second terminal of the output winding connected to the first input terminal of the grid power supply and the first terminal of the output winding connected to the first input terminal of the filament power supply are the same.
In an optional embodiment, the number of the output windings is one, and a center tap is arranged in each output winding; one end of the output winding and the center tap are connected with the input end of the filament power supply; the other end of the output winding and the center tap are connected with the input end of the grid power supply.
As shown in fig. 3, the number of the output windings is one, and a center tap is arranged in the output winding; one end of the output winding and the center tap are connected with the input end of the filament power supply; the other end of the output winding and the center tap are connected with the input end of the grid power supply.
In an alternative embodiment, the supply transformer comprises: the first output winding comprises two edge leading-out ends; one side leading-out end of the first output winding is connected with a high-voltage output end of a high-voltage power supply and is respectively connected with the high-voltage output end of the high-voltage power supply through a filament power supply and the grid power supply; the other input ends of the filament power supply and the grid power supply are connected in parallel and are connected with the other side leading-out end of the first output winding.
In this application, a second embodiment of a power supply system for an electron beam welder is shown in FIG. 3. The leading-out end of the first output winding is connected with the high-voltage output end of the high-voltage power supply in two ways: through the filament power connections and through the grid power connections. The first output winding of the power supply transformer supplies power for the filament power supply, and the power supply voltage is a voltage value between the edge leading-out end and the center leading-out end of the first output winding connected with the filament power supply. The first output winding is also used for supplying power to the grid power supply, and the power supply voltage is a voltage value between the edge leading-out end and the center leading-out end of the first output winding connected with the grid power supply.
In an alternative embodiment, the number of output windings is two; the two output windings are respectively connected with the filament power supply and the grid power supply, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
It should be noted that the two output windings are respectively: a second output winding and a third output winding.
In this application, a third embodiment of a power supply system for an electron beam welder is shown in FIG. 4. The mode that the leading-out terminal of the second output winding is connected with the high-voltage output terminal of the high-voltage power supply is as follows: the mode that the leading-out end of the third output winding is connected with the high-voltage output end of the high-voltage power supply is as follows: through the gate power supply connection. And a second output winding of the power supply transformer supplies power for the filament power supply, and the power supply voltage is the voltage value between two edge leading-out ends of the second output winding. And a third output winding of the power supply transformer supplies power for the grid power supply, and the power supply voltage is the voltage value between two edge leading-out ends of the third output winding.
In this application, a fourth embodiment of a power supply system for an electron beam welder is shown in FIG. 5. The leading-out end of the second output winding is not connected with the high-voltage power supply; the mode that the leading-out terminal of the third output winding is connected with the high-voltage output terminal of the high-voltage power supply is as follows: through the gate power supply connection. And a second output winding of the power supply transformer supplies power for the filament power supply, and the power supply voltage is the voltage value between two edge leading-out ends of the second output winding. The third output winding supplies power for the grid power supply, and the power supply voltage is the voltage value between two edge leading-out ends of the third output winding.
It is further noted that the filament power supply comprises: a first half-wave rectifier circuit and a first BUCK circuit, the gate power supply including: the second half-wave rectifying circuit, the second BUCK circuit and the boosting module; the current input into the filament power supply is rectified by the first half-wave rectifying circuit, and then is output after being subjected to voltage regulation by the first BUCK circuit; and the current input into the grid power supply is rectified by the second half-wave rectifying circuit, subjected to voltage regulation by the second BUCK circuit, subjected to voltage boosting processing by the voltage boosting module and then output.
In an alternative embodiment, the supply transformer comprises: the second output winding and the third output winding respectively comprise: a central terminal and two side terminals; the center leading-out end of the second output winding is connected with the high-voltage output end of the high-voltage power supply through the filament power supply, and the two edge leading-out ends of the second output winding are both connected with the other input end of the filament power supply; the center leading-out end of the third output winding is connected with the high-voltage output end of the high-voltage power supply through the grid power supply, and the two edge leading-out ends of the third output winding are both connected with the other input end of the grid power supply.
In this application, a fifth embodiment of a power supply system for an electron beam welder is shown in FIG. 6. The mode that the leading-out terminal of the second output winding is connected with the high-voltage output terminal of the high-voltage power supply is as follows: the mode that the leading-out end of the third output winding is connected with the high-voltage output end of the high-voltage power supply is as follows: through the gate power supply connection. And a second output winding of the power supply transformer supplies power to the filament power supply, and the power supply voltage is the sum of voltage values between two edge leading-out ends and a center leading-out end of the second output winding. And a third output winding of the power supply transformer supplies power to the grid power supply, and the sum of voltage values between two edge leading-out ends and a center leading-out end of the third output winding is the sum of the voltage values.
In an alternative embodiment, the power supply system of the electron beam welding machine further comprises: the circuit comprises a full-wave rectifying circuit, a BUCK circuit and a booster circuit, wherein the full-wave rectifying circuit is arranged between an output winding of a power supply transformer and a filament power supply or a grid power supply; the BUCK circuit is arranged in the filament power supply and the grid power supply; the boost module is disposed in the gate power supply.
In addition, it should be noted that a series connection end between the filament power supply and the grid power supply is connected to a high-voltage output end of the high-voltage power supply.
The series connection end is the negative output end of the filament power supply and the positive power transmission end of the grid power supply, the negative output end of the filament power supply is connected with the positive power transmission end of the grid power supply in series, and the negative output end of the filament power supply and the positive power transmission end of the grid power supply are connected with the high-voltage output end of the high-voltage power supply.
In the present application, the full-wave rectifying circuit is configured to convert the alternating current supplied from the output winding into a unidirectional alternating current, and supply the unidirectional alternating current to the filament power supply and the grid power supply.
In the present application, as shown in fig. 4, the number of the output windings is two, and each output winding is correspondingly provided with a center tap; the two output windings are respectively connected to the filament power supply and the input end of the grid power supply through a center tap, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
In addition, the filament power supply includes: a first full-wave rectification circuit and a first BUCK circuit, the gate power supply including: a second full-wave rectifying circuit, a second BUCK circuit and a booster circuit; the current input into the filament power supply is rectified by a first full-wave rectifying circuit, then is subjected to voltage regulation by a first BUCK circuit and is output; the current input into the grid power supply is rectified by the second full-wave rectifying circuit, then regulated by the second BUCK circuit, boosted by the booster circuit and output.
It should be noted that, as shown in fig. 4, two diodes are respectively provided at the input terminal of the filament power supply and the input terminal of the grid power supply to form a full-wave rectification circuit, so as to provide a unidirectional alternating current to the filament power supply.
In addition, it should be noted that a series connection end between the filament power supply and the grid power supply is connected to a high-voltage output end of the high-voltage power supply.
The series connection end is the negative output end of the filament power supply and the positive power transmission end of the grid power supply, the negative output end of the filament power supply is connected with the positive power transmission end of the grid power supply in series, and the negative output end of the filament power supply and the positive power transmission end of the grid power supply are connected with the high-voltage output end of the high-voltage power supply.
The embodiment of the utility model provides a pair of power supply system of electron beam welding machine, include: power supply transformer, filament power, grid power and high voltage power supply have produced following technological effect:
(1) the power supply system of the electron beam welding machine provides a reliable and practical filament and grid power supply scheme, provides a reliable current path for charges stored in the power supply system when a load (high voltage) is ignited, avoids the ignition current from damaging electronic devices in the power supply, and improves the reliability of the power supply;
(2) in the power supply system of the electron beam welding machine, the filament power supply and the grid power supply are simple and reliable in circuit, strong in anti-interference capability and simplified in system insulation and system control design.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A power supply system for an electron beam welder, comprising: the lamp comprises a power supply transformer, a filament power supply, a grid power supply and a high-voltage power supply; the number of the output windings of the power supply transformer is at least one, the output windings of the power supply transformer are connected with the input ends of the filament power supply and the grid power supply, and one end of each output winding is electrically connected with the high-voltage output end of the high-voltage power supply; the filament power supply is connected with the grid power supply in series, and the output end of the grid power supply is connected with the high-voltage output end of the high-voltage power supply; and the output winding of the power supply transformer respectively supplies power to the filament power supply and the grid power supply.
2. The power supply system of an electron beam welding machine according to claim 1, wherein the number of the output windings is one, and both ends of the output windings are connected to the input terminals of the filament power supply and the grid power supply, respectively.
3. The power supply system of an electron beam welder according to claim 1, wherein the number of the output windings is one, and a center tap is provided in the output winding;
one end of the output winding and the center tap are connected with the input end of the filament power supply; the other end of the output winding and the center tap are connected with the input end of the grid power supply.
4. The power supply system of an electron beam welder according to claim 1, characterized in that the number of the output windings is two; the two output windings are respectively connected with the filament power supply and the grid power supply, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
5. The power supply system of an electron beam welder according to claim 4, characterized in that the filament power supply comprises: a first half-wave rectifier circuit and a first BUCK circuit, the gate power supply including: the second half-wave rectifying circuit, the second BUCK circuit and the boosting module;
the current input into the filament power supply is rectified by the first half-wave rectifying circuit, and then is output after being subjected to voltage regulation by the first BUCK circuit; and the current input into the grid power supply is rectified by the second half-wave rectifying circuit, subjected to voltage regulation by the second BUCK circuit, subjected to voltage boosting processing by the voltage boosting module and then output.
6. The power supply system of an electron beam welding machine according to claim 1, wherein the number of the output windings is two, and each output winding is provided with a center tap correspondingly;
the two output windings are respectively connected to the filament power supply and the input end of the grid power supply through a center tap, and the filament power supply and the grid power supply are respectively and correspondingly connected with one output winding.
7. The power supply system of an electron beam welder according to claim 6, wherein said filament power supply comprises: a first full-wave rectification circuit and a first BUCK circuit, the gate power supply including: a second full-wave rectifying circuit, a second BUCK circuit and a booster circuit;
the current input into the filament power supply is rectified by a first full-wave rectifying circuit, then is subjected to voltage regulation by a first BUCK circuit and is output; the current input into the grid power supply is rectified by the second full-wave rectifying circuit, then regulated by the second BUCK circuit, boosted by the booster circuit and output.
8. The power supply system of an electron beam welding machine according to claim 5 or 7, characterized in that a series connection terminal between the filament power supply and the grid power supply is connected with a high voltage output terminal of the high voltage power supply.
9. The power supply system of an electron beam welding machine according to claim 8, wherein the series connection terminals are a negative output terminal of the filament power supply and a positive power transmission terminal of the grid power supply, the negative output terminal of the filament power supply is connected in series with the positive power transmission terminal of the grid power supply, and the negative output terminal of the filament power supply and the positive power transmission terminal of the grid power supply are connected with a high voltage output terminal of the high voltage power supply.
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| CN202021923913.8U CN213410768U (en) | 2020-09-04 | 2020-09-04 | Power supply system of electron beam welding machine |
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| CN202021923913.8U CN213410768U (en) | 2020-09-04 | 2020-09-04 | Power supply system of electron beam welding machine |
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