CN215990231U - Inverter of welding equipment - Google Patents
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- CN215990231U CN215990231U CN202122592646.1U CN202122592646U CN215990231U CN 215990231 U CN215990231 U CN 215990231U CN 202122592646 U CN202122592646 U CN 202122592646U CN 215990231 U CN215990231 U CN 215990231U
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- 238000003466 welding Methods 0.000 title claims abstract description 73
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses an inverter of welding equipment, which relates to the field of inverter power control of the welding equipment and comprises the following components: the device comprises a power supply module, a voltage and current sampling module, an inversion module, a temperature detection module, a main control module and a welding transformer control module; the power module is used for supplying power by solar energy, commercial power and a storage battery in a grid-connected mode, the voltage and current sampling module is used for detecting voltage and current, the inversion module is used for inversion filtering processing, the temperature detection module is used for detecting the temperature of the welding transformer, the main control module is used for receiving signals and outputting signals, and the welding transformer control module is used for controlling the welding transformer to work. The utility model has the beneficial effects that: the welding equipment inverter disclosed by the utility model adopts three power supply grid-connected power supply modes of commercial power, solar energy and a storage battery to supply power for the welding equipment inverter, and performs active power factor correction on the welding equipment inverter, so that the power supply environment of an inverter in the inverter is improved.
Description
Technical Field
The utility model relates to the field of control of inverter power supplies of welding equipment, in particular to an inverter device of the welding equipment.
Background
Through long-time development, the contravariant welding machine has been popularized and applied, controllable rectifier type welding machine is improving efficiency, the aspect of reducing volume and weight has very big improvement, but to the contravariant welding machine of single-phase commercial power piezoelectric power supply, the electric efficiency of its contravariant is very low, and along with the inverter device power supply of contravariant welding machine uses more and more, lead to the increase of power supply system loss, the power supply quality descends, lead to the contravariant welding machine at the in-process inefficiency of contravariant, and a single power supply mode and a power are to the working method of welding transformer all the way, lead to the welding machine to shut down when the outage easily, need to join in marriage a welding machine more when using two welding machines, equipment input cost is high.
Disclosure of Invention
The embodiment of the utility model provides an inverter of welding equipment, which aims to solve the problems in the background technology.
According to a first aspect of embodiments of the present invention, there is provided a welding equipment inverter device, including: the device comprises a power supply module, a voltage and current sampling module, an inversion module, a temperature detection module, a main control module and a welding transformer control module;
the power supply module is used for carrying out grid-connected power supply through solar energy, commercial power and a storage battery, and is used for carrying out voltage regulation processing on electric energy output by the solar energy, the commercial power and the storage battery and outputting direct current;
the voltage and current sampling module is connected with the first output end of the inversion module and is used for detecting the voltage and current condition of the electric energy output by the inversion module and outputting a voltage and current signal;
the inversion module is connected with the output end of the power supply module and is used for converting the direct current output by the power supply module into alternating current and carrying out filtering processing;
the temperature detection module is used for detecting the temperature condition of the welding transformer control module during working and outputting a temperature signal;
the main control module is connected with the output ends of the voltage and current sampling module and the temperature detection module, is used for receiving and processing the voltage and current signals and the temperature signals, is connected with the control ends of the power supply module and the inversion module, and is used for outputting driving signals and controlling the power supply module and the inversion module to work;
and the welding transformer control module is connected with the second output end of the inversion module and used for controlling the work of the welding transformer.
According to another aspect of the embodiments of the present invention, the power module includes a commercial power supply unit, a storage battery power supply unit, and a solar power supply unit;
the commercial power supply unit is used for carrying out AC-DC conversion on commercial power;
the storage battery power supply unit is used for providing electric energy through a storage battery, performing DC-DC conversion and charging the storage battery;
the solar power supply unit is used for converting solar energy into electric energy and performing DC-DC conversion;
the output end of the solar power supply unit, the output end of the commercial power supply unit and the output end of the storage battery power supply unit are connected with the input end of the inversion module, and the control end of the solar power supply unit, the control end of the commercial power supply unit and the control end of the storage battery power supply unit are connected with the driving end of the main control module
Compared with the prior art, the utility model has the beneficial effects that: the welding equipment inverter device provided by the utility model adopts three power supply grid-connected power supply modes of commercial power, solar energy and a storage battery to provide required electric energy for the welding equipment inverter device, improves the cruising ability of the welding equipment inverter device, and carries out active power factor correction on the welding equipment inverter device, so that the welding equipment inverter device is pollution-free to a power grid, is beneficial to improving the power supply quality, enables the direct current bus voltage of the inverter device to be increased and stable, improves the power supply environment of an inverter in the inverter device, improves the efficiency and reduces the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of an inverter of a welding apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic block diagram of a power module according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of an inverter of a welding device according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of the solar power supply unit provided in fig. 3.
Reference numerals: 1. a power supply module; 2. a voltage and current sampling module; 3. an inversion module; 4. a temperature detection module; 5. a main control module; 6. welding a transformer control module; 101. a mains supply unit; 102. a battery power supply unit; 103 solar power supply unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1, an embodiment of the present invention provides an inverter for welding equipment, where the inverter for welding equipment includes: the device comprises a power module 1, a voltage and current sampling module 2, an inversion module 3, a temperature detection module 4, a main control module 5 and a welding transformer control module 6;
specifically, the power module 1 is used for performing grid-connected power supply through solar energy, commercial power and a storage battery DC2, and is used for performing voltage regulation processing on the solar energy, the commercial power and electric energy output by the storage battery DC2 and outputting direct current;
the input end of the voltage and current sampling module 2 is connected with the first output end of the inversion module 3 and is used for detecting the voltage and current condition of the electric energy output by the power supply module 1 and outputting a voltage and current signal;
the input end of the inversion module 3 is connected with the output end of the power module 1, and is used for converting the direct current output by the power module 1 into alternating current and carrying out filtering processing;
the temperature detection module 4 is used for detecting the temperature condition of the welding transformer control module 6 during working and outputting a temperature signal;
the first receiving end and the second receiving end of the main control module 5 are respectively connected with the output ends of the voltage and current sampling module 2 and the temperature detection module 4 and are used for receiving and processing the voltage and current signals and the temperature signals, and the output end of the main control module 5 is respectively connected with the control ends of the power module 1 and the inversion module 3 and is used for outputting driving signals and controlling the power module 1 and the inversion module 3 to work;
and the input end of the welding transformer control module 6 is connected with the second output end of the inversion module 3 and is used for controlling the work of the welding transformer.
Further, the power module 1 includes a commercial power supply unit 101, a storage battery supply unit 102 and a solar power supply unit 103;
specifically, the utility power supply unit 101 is configured to perform AC-DC conversion on utility power;
the storage battery power supply unit 102 is used for supplying power through the storage battery DC2 and performing DC-DC conversion, and is used for charging the storage battery DC 2;
a solar power supply unit 103 for converting solar energy into electric energy and performing DC-DC conversion; the output end of the solar power supply unit 103, the output end of the commercial power supply unit 101 and the output end of the storage battery power supply unit 102 are all connected with the input end of the inverter module 3, and the control end of the solar power supply unit 103, the control end of the commercial power supply unit 101 and the control end of the storage battery power supply unit 102 are all connected with the driving end of the main control module 5.
In a specific embodiment, the power module 1 may convert solar energy into electric energy by using a solar panel DC1 to supply power, perform voltage conversion by using a dual voltage boosting (Boost) circuit, perform voltage conversion and debugging by using a commercial power supply and a power factor corrector, and perform charging and discharging processing on the storage battery DC2 by using the storage battery DC2 and a Boost-Buck (Boost-Buck) circuit; the voltage and current sampling module 2 can detect the output voltage and current parameters of the inversion module 3 by adopting a current transformer mode, which is not described herein again; the inversion module 3 can adopt a three-phase inverter U5 and an LC filter U6 to perform inversion and filtering of electric energy, which is not described herein; the temperature detection module 4 may detect the temperature of the welding inverter control module by using a temperature switch, which is not described herein again; the main control module 5 can adopt a Digital Signal Processor (DSP) to receive and process signals, and analyze and control the work of the inverter of the welding equipment through an internal software system; the welding transformer control module 6 controls the operation of the welding transformer in a relay contact mode.
Example 2: based on embodiment 1, referring to fig. 3, in an embodiment of the inverter of welding equipment according to the present invention, the commercial power supply unit 101 includes a commercial power AC, a first capacitor C1, a first inductor L1, a second capacitor C2, a second inductor L2, a first switch tube G1, a second switch tube G2, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a third capacitor C3, and a fifth diode D5;
specifically, one end of the mains voltage AC is connected to one end of a first capacitor C1 and one end of a first inductor L1, the other end of the mains voltage AC is connected to the other end of a first capacitor C1, one end of a second capacitor C2, an anode of a third diode D3 and a cathode of a fourth diode D4, the other end of the first inductor L1 is connected to the other end of a second capacitor C2 and one end of a second inductor L2, the other end of the second inductor L2 is connected to an emitter of a first switching tube G1, an anode of a first diode D1, a cathode of a second diode D2 and a collector of a second switching tube G2, a collector of the first switching tube G1 is connected to a cathode of a first diode D1, a cathode of a second diode D2, one end of a third capacitor C3 and an anode of a fifth diode D5, and an emitter of the second switching tube G2 is connected to an anode of a second diode D2, an anode of a fourth diode D4 and the other end of the third capacitor C3.
Further, the battery power supply unit 102 includes a battery DC2, a fourth capacitor C4, a third inductor L3, a fourth switching tube G4, a third switching tube G3 and a fifth capacitor C5;
specifically, one end of battery DC2 is connected to one end of fourth capacitor C4 and one end of third inductor L3, one end of third inductor L3 is connected to the emitter of fourth switching tube G4 and the collector of third switching tube G3, the other end of battery DC2 is connected to the other end of fourth capacitor C4, the emitter of third switching tube G3 and one end of fifth capacitor C5, and the other end of fifth capacitor C5 is connected to the collector of fourth switching tube G4.
Further, the master control module 5 includes a first controller U1, a first driver U2, a second driver U3, and a third driver U4;
specifically, a first driving end and a second driving end of the first controller U1 are respectively connected to the gate of the first switching tube G1 and the gate of the second switching tube G2 through a first driver U2, a third driving end and a fourth driving end of the first controller U1 are respectively connected to the gate of the third switching tube G3 and the gate of the fourth second switching tube through a second driver U3, and a fifth driving end and a sixth driving end of the first controller U1 are respectively connected to the gate of the fifth switching tube G5 and the gate of the sixth switching tube G6 through a third driver U4.
Further, the inverter module 3 includes a sixth capacitor C6, a three-phase inverter U5, and an LC filter U6;
specifically, a first input end of the three-phase inverter U5 is connected to one end of the sixth capacitor C6, the collector of the fourth switch tube G4, the cathode of the fifth diode D5 and the cathode of the ninth diode D9, a second input end of the three-phase inverter U5 is connected to the other end of the sixth capacitor C6, the emitter of the third switch tube G3 and the emitter of the second switch tube G2, and an output end of the three-phase inverter U5 is connected to the input end of the LC filter U6.
Further, the welding transformer control module 6 comprises a first welding transformer J1, a second welding transformer J2, a first contact switch K1 and a second contact switch K2;
specifically, the first and second input terminals of the first welding transformer J1 are connected to the first and second output terminals of the LC filter U6, respectively, through a first contact switch K1, and the first and second output terminals of the second welding transformer J2 are connected to the second and third output terminals of the LC filter U6, respectively, through a second contact switch K2.
In a specific embodiment, the first switch tube G1, the second switch tube G2, the third switch tube G3, and the fourth switch tube G4 may be selectively controlled by an Insulated Gate Bipolar Transistor (IGBT) through a special driver, wherein the first switch tube G1, the second switch tube G2, the first diode D1 to the fourth diode D4 form a switch rectifier, and the third switch tube G3 and the fourth switch tube G4 cooperate with the third inductor L3 and the fourth capacitor C4 to form a Boost-Buck circuit by controlling the power factor of the power supply to be corrected by the conduction of the first switch tube G1 and the second switch tube G2; the first driver U2 and the second driver U3 can select an HL402B driver to drive the IGBTs to work; the first controller U1 can select a TM320F28335 digital signal processor to receive and calculate signals and control the operation of the switching tube; the first contact switch K1 and the second contact switch K2 may be double pole double throw switches.
Example 3: based on embodiment 2, referring to fig. 4, in an embodiment of the inverter of welding equipment according to the present invention, the solar power supply unit 103 includes a solar panel DC1, a sixth diode D6, a seventh capacitor C7, a fourth inductor L4, a fifth inductor L5, a seventh diode D7, an eighth diode D8, a fifth switching tube G5, a sixth switching tube G6, an eighth capacitor C8, and a ninth diode D9;
specifically, one end of the solar panel DC1 is connected to one end of a seventh capacitor C7, one end of a fourth inductor L4 and one end of a fifth inductor L5 through an anode of a sixth diode D6, the other end of the solar panel DC1 is connected to the seventh capacitor C7, an emitter of a fifth switching tube G5, an emitter of the sixth switching tube G6 and one end of an eighth capacitor C8, the other end of the fourth inductor L4 is connected to a collector of the sixth switching tube G6 and an anode of the seventh diode D7, the other end of the fifth inductor L35 5 is connected to a collector of the fifth switching tube G5 and an anode of the fifth inductor L5, and a cathode of the fourth inductor L4 and a cathode of the fifth inductor L5 are connected to the other end of the eighth capacitor C8 and an anode of the ninth diode D9.
In a specific embodiment, the seventh capacitor C7, the fourth inductor L4, the fifth inductor L5, the fifth switching tube G5, the sixth switching tube G6, the seventh diode D7, and the eighth diode D8 form a dual Boost circuit; the fifth switch tube G5 and the sixth switch tube G6 both adopt IGBTs, and are alternately controlled by the cooperation of the first controller U1 and the MPPT algorithm, so that the high-efficiency utilization of solar energy is realized, and the safety of the circuit is improved; the third driver U4 can be selected from HL402B driver; the ninth diode D9 prevents reverse flow of power.
In the embodiment of the utility model, a power module 1 is supplied by grid connection through a solar power supply unit, a commercial power supply unit 101 and a storage battery power supply unit 102, when the solar power supply unit and the commercial power supply unit 101 reach a certain value, part of direct current is transmitted to a storage battery DC2 power supply module through a Boost-Buck circuit for storage, the other part of direct current is inverted and filtered through an inversion module 3, finally output electric energy is transmitted to a welding transformer control module 6, a voltage and current sampling module 2 detects a voltage and current signal output by the inversion module 3, a temperature detection module 4 detects the working temperature of the welding transformer control module 6, a main control module 5 receives, analyzes and processes the working temperature, and a corresponding control signal is calculated and output through an internal software system of the main control module 5 to drive the power module 1 and the inversion module 3 to work; in the power module 1, the solar cell panel DC1 outputs the processed electric energy through a double-Boost circuit, the double-Boost circuit is controlled by a first controller U1 in cooperation with an MPPT algorithm, the commercial power is subjected to voltage processing through a high-voltage filter and a switching rectifier, the storage battery DC2 realizes the charge-discharge function by using a Boost-Buck circuit, the processed voltages are processed and output through an inverter and an LC filter U6, and in the welding machine transformer control module, the work of the welding transformer is controlled through a first contact switch K1 and a second contact switch K2 respectively, so that the purpose of the work of a multi-welding machine is achieved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a welding equipment inverter which characterized in that:
this welding equipment inverter includes: the device comprises a power supply module, a voltage and current sampling module, an inversion module, a temperature detection module, a main control module and a welding transformer control module;
the power supply module is used for carrying out grid-connected power supply through solar energy, commercial power and a storage battery, and is used for carrying out voltage regulation processing on electric energy output by the solar energy, the commercial power and the storage battery and outputting direct current;
the voltage and current sampling module is connected with the first output end of the inversion module and is used for detecting the voltage and current condition of the electric energy output by the inversion module and outputting a voltage and current signal;
the inversion module is connected with the output end of the power supply module and is used for converting the direct current output by the power supply module into alternating current and carrying out filtering processing;
the temperature detection module is used for detecting the temperature condition of the welding transformer control module during working and outputting a temperature signal;
the main control module is connected with the output ends of the voltage and current sampling module and the temperature detection module, is used for receiving and processing the voltage and current signals and the temperature signals, is connected with the control ends of the power supply module and the inversion module, and is used for outputting driving signals and controlling the power supply module and the inversion module to work;
and the welding transformer control module is connected with the second output end of the inversion module and used for controlling the work of the welding transformer.
2. The welding equipment inverter of claim 1, wherein the power module comprises a mains power supply unit, a storage battery power supply unit and a solar power supply unit;
the commercial power supply unit is used for carrying out AC-DC conversion on commercial power;
the storage battery power supply unit is used for providing electric energy through a storage battery, performing DC-DC conversion and charging the storage battery;
the solar power supply unit is used for converting solar energy into electric energy and performing DC-DC conversion;
the output end of the solar power supply unit, the output end of the commercial power supply unit and the output end of the storage battery power supply unit are connected with the input end of the inversion module, and the control end of the solar power supply unit, the control end of the commercial power supply unit and the control end of the storage battery power supply unit are connected with the driving end of the main control module.
3. The inverter of claim 2, wherein the mains supply unit comprises a mains voltage, a first capacitor, a first inductor, a second capacitor, a second inductor, a first switch tube, a second switch tube, a first diode, a second diode, a third diode, a fourth diode, a third capacitor and a fifth diode;
one end of a commercial voltage is connected with one end of a first capacitor and one end of a first inductor, the other end of the commercial voltage is connected with the other end of the first capacitor, one end of a second capacitor, the anode of a third diode and the cathode of a fourth diode, the other end of the first inductor is connected with the other end of the second capacitor and one end of a second inductor, the other end of the second inductor is connected with the emitter of a first switching tube, the anode of the first diode, the cathode of the second diode and the collector of a second switching tube, the collector of the first switching tube is connected with the cathode of the first diode, the cathode of the second diode, one end of the third capacitor and the anode of a fifth diode, and the emitter of the second switching tube is connected with the anode of the second diode, the anode of the fourth diode and the other end of the third capacitor.
4. The inverter of the welding equipment according to claim 3, wherein the battery power supply unit comprises a battery, a fourth capacitor, a third inductor, a fourth switching tube, a third switching tube and a fifth capacitor;
one end of the storage battery is connected with one end of the fourth capacitor and one end of the third inductor, one end of the third inductor is connected with an emitting electrode of the fourth switch tube and a collecting electrode of the third switch tube, the other end of the storage battery is connected with the other end of the fourth capacitor, the emitting electrode of the third switch tube and one end of the fifth capacitor, and the other end of the fifth capacitor is connected with the collecting electrode of the fourth switch tube.
5. The inverter of claim 4, wherein the solar power supply unit comprises a solar panel, a sixth diode, a seventh capacitor, a fourth inductor, a fifth inductor, a seventh diode, an eighth diode, a fifth switching tube, a sixth switching tube, an eighth capacitor and a ninth diode;
one end of the solar cell panel is connected with one end of the seventh capacitor, one end of the fourth inductor and one end of the fifth inductor through the anode of the sixth diode, the other end of the solar cell panel is connected with the seventh capacitor, the emitter of the fifth switching tube, the emitter of the sixth switching tube and one end of the eighth capacitor, the other end of the fourth inductor is connected with the collector of the sixth switching tube and the anode of the seventh diode, the other end of the fifth inductor is connected with the collector of the fifth switching tube and the anode of the fifth inductor, and the cathode of the fourth inductor and the cathode of the fifth inductor are connected with the other end of the eighth capacitor and the anode of the ninth diode.
6. The inverter of claim 5, wherein the main control module comprises a first controller, a first driver, a second driver, and a third driver;
the first driving end and the second driving end of the first controller are respectively connected with the grid electrode of the first switch tube and the grid electrode of the second switch tube through the first driver, the third driving end and the fourth driving end of the first controller are respectively connected with the grid electrode of the third switch tube and the grid electrode of the fourth second switch tube through the second driver, and the fifth driving end and the sixth driving end of the first controller are respectively connected with the grid electrode of the fifth switch tube and the grid electrode of the sixth switch tube through the third driver.
7. The welding equipment inverter of claim 5, wherein the inverting module comprises a sixth capacitor, a three-phase inverter and an LC filter;
the first input end of the three-phase inverter is connected with one end of a sixth capacitor, the collector of the fourth switching tube, the cathode of the fifth diode and the cathode of the ninth diode, the second input end of the three-phase inverter is connected with the other end of the sixth capacitor, the emitter of the third switching tube and the emitter of the second switching tube, and the output end of the three-phase inverter is connected with the input end of the LC filter.
8. The welding equipment inverter of claim 7, wherein the welding transformer control module comprises a first welding transformer, a second welding transformer, a first contact switch, and a second contact switch;
the first input end and the second output end of the first welding transformer are respectively connected with the first output end and the second output end of the LC filter through the first contact switch, and the first input end and the second output end of the second welding transformer are respectively connected with the second output end and the third output end of the LC filter through the second contact switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592646.1U CN215990231U (en) | 2021-10-27 | 2021-10-27 | Inverter of welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122592646.1U CN215990231U (en) | 2021-10-27 | 2021-10-27 | Inverter of welding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215990231U true CN215990231U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122592646.1U Expired - Fee Related CN215990231U (en) | 2021-10-27 | 2021-10-27 | Inverter of welding equipment |
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| CN (1) | CN215990231U (en) |
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2021
- 2021-10-27 CN CN202122592646.1U patent/CN215990231U/en not_active Expired - Fee Related
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Granted publication date: 20220308 |