Multifunctional panel display of gas shielded welding machine

Abstract

The utility model discloses a multifunctional panel display of a gas shielded welding machine, which comprises a network pin CON1 and a network pin CON2 which are connected with a singlechip, the network pin CON1 and the network pin CON2 are connected with a rectifier bridge BD1, and the rectifier bridge BD1 is connected with a relay J1 and a relay J2. Compared with the prior art, the gas shielded welding machine has the advantages that the singlechip is used as a digital power supply, so that the singlechip integration of a power supply system is realized, and the volume and the weight of the gas shielded welding machine are effectively reduced; the digital power supply can be conveniently expanded and upgraded through digital signals, the requirements of different users are met, meanwhile, 110V / 220V double voltages are expanded in the circuit, autonomous control switching is achieved through two relays, the gas shielded welding machine is convenient to use by customers, and the applicability of the gas shielded welding machine is effectively improved; the digital power supply can realize higher efficiency optimization through an adaptive algorithm, so that the digital power supply can perform real-time coefficient adjustment under different load conditions to adapt to a brand new load condition, thereby improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas shielded welding machine relates to the multifunctional panel of gas shielded welding machine, especially the multifunctional panel display of gas shielded welding machine. BACKGROUND

[0002] Gas shielded welding machine, full name is gas shielded welding machine, is a kind of using electric arc as heat source, with the electric arc between the welding wire and welding piece that burns to melt parent material and filler metal, while inputting protective gas around welding area to protect electric arc and molten pool from air influence welding equipment.

[0003] Existing gas shielded welding machine is mostly powered by traditional power supply, resulting in the volume of gas shielded welding machine is usually larger, weight is relatively heavy, while the expandability of traditional power supply is limited, usually need hardware change to adapt to the application demand under different voltage, it is inconvenient for customer to use, and traditional power supply usually uses analog technology, so that efficiency optimization is relatively limited, and it is easy to cause limited production efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses to the volume of existing gas shielded welding with traditional power supply, lower applicability and limited production efficiency, the technical problem to be solved by the utility model is to provide a kind of multifunctional panel display of gas shielded welding machine that can reduce volume and weight, improve applicability and production efficiency.

[0005] The utility model discloses the technical scheme that the above-mentioned technical problem is solved to gas shielded welding machine's multifunctional panel display, including the network pin CON1 and network pin CON2 of connection singlechip, network pin CON1 is connected to the pin 1 of rectifier bridge BD1, and network pin CON2 is connected to the pin 2 of rectifier bridge BD1, and network pin CON1 and the pin 1 of rectifier bridge BD1 are all connected the second branch of 220V power supply;

[0006] Network pin CON2 and the pin 2 of rectifier bridge BD1 are connected in series with RT1, and network pin CON2 and RT1 are all connected the first branch of 220V power supply;

[0007] The one end of network pin CON2, RT1 and the first branch of 220V power supply are connected the pin 3 of relay J1, and the other end of RT1 and the pin 2 of rectifier bridge BD1 are connected the pin 4 of relay J1 and the pin 3 of relay J2, the pin 4 of relay J2 and the pin 3 of rectifier bridge BD1 are connected in series with capacitor C1, and the pin 3 of rectifier bridge BD1 and capacitor C1 are connected 310V power supply pin, the pin 4 of relay J2 and the pin 1 of rectifier bridge BD1 are connected in series with capacitor C2, and the pin 1 of rectifier bridge BD1 and capacitor C2 are connected internal ground OV;

[0008] The pin 1 of the relay J1 is connected in series with the pin 2 of the relay J1, and the pin 2 of the relay J1 is connected with the pin of the 24V power supply through the diode D6, the pin 1 of the relay J1 is connected with the pin 2 of the transistor Q2 through the diode D6, the pin 3 of the transistor Q2 is connected with the ground GND, and the pin 1 of the transistor Q2 is connected with the diode D5, the resistor R28 and the capacitor C36, the resistor R28 and the capacitor C36 are respectively connected with the ground GND;

[0009] The pin 1 of the relay J2 is connected in series with the pin 2 of the relay J2, and the pin 1 of the relay J2 is connected with the pin of the 24V power supply through the diode D7, the pin 2 of the relay J2 is connected with the pin 2 of the transistor Q3 through the diode D7, the pin 3 of the transistor Q3 is connected with the ground GND, and the pin 1 of the transistor Q3 is connected with the diode D8, the resistor R27, the capacitor C35 and the pin 4 of the photoelectric coupler U1, the resistor R27 is connected with the pin of the 24V power supply, and the capacitor C36 is connected with the ground GND;

[0010] The pin 3 of the photoelectric coupler U1 is connected with the ground GND, the pin 1 of the photoelectric coupler U1 is connected in series with the pin 2 of the photoelectric coupler U1 through the capacitor C30, the pin 2 of the photoelectric coupler U1 is connected with the first pin of the 220V power supply through the capacitor C30, the pin 1 of the photoelectric coupler U1 is connected with the diode Z1 through the capacitor C30, the diode Z1 is connected in series with the voltage-dependent resistor RV1, the voltage-dependent resistor RV1 is connected in series with R22, and R22 is connected in series with the diode D2;

[0011] The diode D5 and the diode D8 are connected with the pin 3 of the transistor Q1 and the diode Z2, the diode Z2 and the pin 1 of the transistor Q1 are respectively connected with the ground GND, and the pin 2 of the transistor Q1 is connected with the capacitor C34, the resistor R26 and the resistor R25, the capacitor C34 and the resistor R26 are respectively connected with the ground GND;

[0012] The resistor R25 is connected with the capacitor C33, the resistor R24, the capacitor C32 and the pin 4 of the photoelectric coupler U2, the capacitor C33, the capacitor C32 and the pin 3 of the photoelectric coupler U2 are respectively connected with the ground GND, and the resistor R24 is connected with the pin of the 24V power supply;

[0013] The pin 1 of the photoelectric coupler U2 is connected in series with the pin 2 of the photoelectric coupler U2 through the capacitor C31, the pin 2 of the photoelectric coupler U2 is connected with the first pin of the 220V power supply through the capacitor C31, the pin 1 of the photoelectric coupler U2 is connected with the resistor R23 through the capacitor C31, and the resistor R23 is connected in series with the diode D1;

[0014] The diode D1 is connected in series with the diode D2, and the diode D1 and the diode D2 are connected with the second pin of the 220V power supply.

[0015] The further preferred scheme of the utility model further is: diode D6 guide current from the pin 1 of relay J1 to the pin 2 of relay J1, and diode D7 guide current from the pin 1 of relay J2 to the pin 2 of relay J2.

[0016] The further preferred scheme of the utility model further is: diode D5, diode D8 and diode Z1 all guide current to the pin 3 of transistor Q1.

[0017] The further preferred scheme of the utility model further is: diode D1 guide current to resistance R23, and diode D2 guide current to resistance R22, and diode Z1 guide current to piezoresistor RV1.

[0018] The further preferred scheme of the utility model further is: resistance R1 is connected in parallel on capacitor C1, and resistance R2 is connected in parallel on capacitor C2, resistance R1 and resistance R2 are connected in series, resistance R3 and resistance R4 are connected in parallel on the series-connected resistance R1 and resistance R2, resistance R3 and resistance R4 are connected in series, capacitor C3 is connected in parallel on resistance R3, capacitor C4 is connected in parallel on resistance R4, and capacitor C3 and capacitor C4 are connected in series.

[0019] The further preferred scheme of the utility model further is: capacitor C3 connects the pin 2 of transistor Q4, the pin 2 of G5 and capacitor C5, capacitor C3 connects the pin 3 of transistor Q6, the pin 3 of transistor Q7 and capacitor C6, resistance R5, resistance R6, resistance R7 and resistance R8 are connected in series between capacitor C5 and capacitor C6 in proper order, resistance R6 and resistance R7 are connected with the pin 3 of transistor Q4, the pin 3 of transistor Q5, the pin 2 of transistor Q6 and the pin 2 of transistor Q7, and are connected with resistance R26, capacitor C8 and the pin 10 of transformer T3, resistance R26 is connected in parallel with capacitor C8, the pin 1 of transistor Q4 is connected with resistance R19, resistance R19, diode D4, resistance R20 and resistance R17, the pin 1 of transistor Q4 is connected with resistance R19, the pin 1 of transistor Q5 is connected with resistance R20, resistance R18 is connected in series between diode D4 and resistance R17, and resistance R17 and resistance R18 are connected with the pin 9 of transformer T3.

[0020] The pin 3 of transistor Q6, the pin 3 of transistor Q7 and capacitor C6 are connected with capacitor C7, resistance R61 and the pin 1 of transformer T3, capacitor C7 is connected in parallel with resistance R61, and the parallel-connected capacitor C7 and resistance R61 are connected with resistance R13, resistance R14, diode D3 and resistance R16, resistance R15 is connected in series between diode D3 and resistance R16, and resistance R16 and resistance R15 are connected with the pin 2 of transformer T3.

[0021] Pin 5 of transformer T3 is connected to pin 7 of connector P1, and pin 6 of transformer T3 is connected to pin 6 of connector P1.

[0022] Further preferred scheme of the utility model is: pin 4 of connector P1 connects pin 4 of photoelectric coupler U3 and pin 1 of connector P61, pin 3 of connector P61, pin 2 of connector P61 and pin 3 of photoelectric coupler U3 are connected to GND respectively, and pin 5 of connector P1 is connected to 15V power pin, pin 1 of photoelectric coupler U3 is connected to resistance R64, resistance R64 is connected to 24V power pin, pin 2 of photoelectric coupler U3 is connected to diode D13, and diode D13 is connected to pin 2 of relay J2 and diode D7.

[0023] Further preferred scheme of the utility model is: pin 1 of connector P1 is connected to pin 3 of transformer T2, pin 2 of connector P1 is connected to pin 4 of transformer T2, pin 1 of transformer T2 is connected to QB pin, pin 2 of transformer T2 is connected to pin 1 of transformer T1, and pin 2 of transformer T1 is connected to resistance R6 and resistance R7.

[0024] Further preferred scheme of the utility model is: pin 3 of transformer T1 is connected to resistance R12, pin 1 and pin 3 of diode D21 and pin 1 of diode D22, resistance R12 is connected to capacitor C11, capacitor C11, pin 2 of diode D21 and pin 2 of diode D22 are connected to VOUT+ pin, pin 2 of diode D23 and capacitor C12, capacitor C12 is connected to resistance R11, pin 6 of transformer T1 is connected to pin 3 of diode D22, pin 3 and pin 1 of diode D23 and resistance R11.

[0025] Further preferred scheme of the utility model is: be equipped with chip U4, pin 1 of chip U4 is connected to internal ground OV, pin 2 of chip U4 is connected with parallel resistance R37 and resistance R38, parallel resistance R37 and resistance R38 connect the same internal ground OV, pin 3 of chip U4 is connected to diode D17, capacitor C23, capacitor C24, resistance R36 and resistance R35, diode D17 is connected to pin 5 of transformer T4, capacitor C23, capacitor C24 and resistance R36 are connected to internal ground OV respectively, resistance R35 is connected to resistance R34, resistance R34 is connected to resistance R33, resistance R33 is connected to pin 1 of transformer T4, pin 2 of connector P8 and parallel capacitor C25, resistance R32, resistance R31 and resistance R30, parallel capacitor C25, resistance R32, resistance R31 and resistance R30 are connected to diode D16, diode D16 is connected to pin 3 of transformer T4, and pin 5, pin 6, pin 7 and pin 8 of chip U4;

[0026] Pin 4 of chip U4 is connected to pin 4 of optocoupler U5 and capacitor C26. Capacitor C26 and pin 3 of optocoupler U5 are connected to the same internal ground 0V. Pin 1 of optocoupler U5 is connected to resistor R40 and capacitor C20. Resistor R40 is connected to diode Z3. Diode Z3 is connected to the 15V power supply pin. Capacitor C20 is connected to ground GND, and pin 2 of optocoupler U5 is connected to GND.

[0027] Compared with the prior art, the advantages of this utility model are:

[0028] 1. By using a microcontroller as a digital power supply, the power system can be integrated into a single chip, integrating a large number of discrete components into a chip or a group of chips, effectively reducing the size and weight of the gas shielded welding machine.

[0029] 2. The digital power supply can be easily expanded and upgraded through digital signals to meet the needs of different users. At the same time, the circuit is also expanded to 110V / 220V dual voltage, which can be independently controlled and switched through two relays, making it convenient for customers to use and effectively improving the applicability of the gas shielded welding machine.

[0030] 3. Digital power supplies can achieve higher efficiency optimization through adaptive algorithms, enabling them to adjust coefficients in real time under different load conditions to adapt to new load situations, thereby improving production efficiency. Attached Figure Description

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0032] Figure 1 The circuit of the gas shielded welding machine according to the preferred embodiment of this utility model Figure 1 ;

[0033] Figure 2 The circuit of the preferred embodiment of this utility model Figure 1 The circuit section for rectification, filtering, and 110V / 220V determination;

[0034] Figure 3 The circuit of the preferred embodiment of this utility model Figure 1 The circuit section of the inverter;

[0035] Figure 4 The circuit of the preferred embodiment of this utility model Figure 1 The circuit section of the step-down converter;

[0036] Figure 5 Circuit for preferred embodiments of the present application Figure 1 Circuit portion in which secondary rectification is performed;

[0037] Figure 6 Circuit for preferred embodiments of the present application Figure 1 Circuit portion in which switching power supply is performed;

[0038] Figure 7 Circuit for preferred embodiments of the present application Figure 2 ;

[0039] Figure 8 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which analog signal processing is performed;

[0040] Figure 9 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which temperature control is performed;

[0041] Figure 10 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which temperature control detection is performed;

[0042] Figure 11 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which micro control is performed;

[0043] Figure 12 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which voltage stabilization is performed.

[0044] Figure 13 Circuit for preferred embodiments of the present application Figure 2 Circuit portion in which interface is performed. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present application will be described in detail below with reference to the drawings, and it will be appreciated by those skilled in the art that the description is merely illustrative, exemplary, and should not be construed as limiting the scope of protection of the present application.

[0046] It should be noted that similar reference numerals represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it can not be further defined and explained in subsequent drawings.

[0047] The present embodiment mainly describes the multifunctional panel display of the gas shielded welding machine which can reduce the volume and weight, improve the applicability and production efficiency, and specifically as follows:

[0048] As Figures 1-7As shown, the multifunction panel of the gas shielded welding machine is displayed, including the network pin CON1 and the network pin CON2 connected with the single chip microcomputer, the network pin CON1 and the network pin CON2 are connected with the rectifier bridge BD1 which can convert AC into DC.

[0049] The network pin CON1 is connected to the pin 1 of the rectifier bridge BD1, the network pin CON2 is connected to the pin 2 of the rectifier bridge BD1, and the network pin CON1 and the pin 1 of the rectifier bridge BD1 are both connected to the second pin of the 220V power supply, the network pin CON2 and the pin 2 of the rectifier bridge BD1 are connected in series with the RT1, and the network pin CON2 and the RT1 are both connected to the first pin of the 220V power supply, the network pin CON2, one end of the RT1 and the first pin of the 220V power supply are connected to the pin 3 of the relay J1, the other end of the RT1 and the pin 2 of the rectifier bridge BD1 are connected to the pin 4 of the relay J1 and the pin 3 of the relay J2, the pin 4 of the relay J2 and the pin 3 of the rectifier bridge BD1 are connected in series with the capacitor C1, the pin 3 of the rectifier bridge BD1 and the capacitor C1 are connected to the 310V power supply pin, the pin 4 of the relay J2 and the pin 1 of the rectifier bridge BD1 are connected in series with the capacitor C2, and the pin 1 of the rectifier bridge BD1 and the capacitor C2 are connected to the internal ground OV.

[0050] The pin 1 of the relay J1 and the pin 2 of the relay J1 are connected in series with the diode D6, the diode D6 directs the current to flow from the pin 1 of the relay J1 to the pin 2 of the relay J1, and the pin 2 of the relay J1 and the diode D6 are connected to the 24V power supply pin, the pin 1 of the relay J1 and the diode D6 are connected to the pin 2 of the transistor Q2, the pin 3 of the transistor Q2 is connected to the ground GND, and the pin 1 of the transistor Q2 is connected to the diode D5, the resistor R28 and the capacitor C36, and the resistor R28 and the capacitor C36 are respectively connected to the ground GND.

[0051] The pin 1 of the relay J2 and the pin 2 of the relay J2 are connected in series with the diode D7, the diode D7 directs the current to flow from the pin 1 of the relay J2 to the pin 2 of the relay J2, and the pin 1 of the relay J2 and the diode D7 are connected to the 24V power supply pin, the pin 2 of the relay J2 and the diode D7 are connected to the pin 2 of the transistor Q3, the pin 3 of the transistor Q3 is connected to the ground GND, and the pin 1 of the transistor Q3 is connected to the diode D8, the resistor R27, the capacitor C35 and the pin 4 of the optoelectronic coupler U1, the resistor R27 is connected to the 24V power supply pin, and the capacitor C36 is connected to the ground GND.

[0052] Pin 3 of optoelectronic coupler U1 is connected to GND, a capacitor C30 is connected in series between pin 1 of optoelectronic coupler U1 and pin 2 of optoelectronic coupler U1, the capacitor C30 is connected to the first pin of a 220V power supply, pin 1 of optoelectronic coupler U1 is connected to a diode Z1, the diode Z1 is connected in series with a pressure-sensitive resistor RV1, the pressure-sensitive resistor RV1 is connected in series with R22, R22 is connected in series with a diode D2;

[0053] The diode D5 and the diode D8 are both connected to pin 3 of transistor Q1 and a diode Z2, pin 1 of transistor Q1 is connected to GND respectively, pin 2 of transistor Q1 is connected to a capacitor C34, a resistor R26 and a resistor R25, the capacitor C34 and the resistor R26 are both connected to GND respectively, preferably, the diode D5, the diode D8 and the diode Z1 all direct the current to pin 3 of transistor Q1;

[0054] The resistor R25 is connected to a capacitor C33, a resistor R24, a capacitor C32 and pin 4 of optoelectronic coupler U2, the capacitor C33, the capacitor C32 and pin 3 of optoelectronic coupler U2 are all connected to GND respectively, the resistor R24 is connected to a 24V power supply pin;

[0055] A capacitor C31 is connected in series between pin 1 of optoelectronic coupler U2 and pin 2 of optoelectronic coupler U2, pin 2 of optoelectronic coupler U2 is connected to the first pin of a 220V power supply, pin 1 of optoelectronic coupler U2 is connected to a resistor R23, and the resistor R23 is connected in series with a diode D1;

[0056] The diode D1 and the diode D2 are connected in series, and the diode D1 and the diode D2 are connected to the second pin of a 220V power supply, preferably, the diode D1 directs the current to the resistor R23, and the diode D2 directs the current to the resistor R22, and the diode Z1 directs the current to the pressure-sensitive resistor RV1.

[0057] In the present application, a single-chip microcomputer is used to realize digital power supply, a large number of discrete components are integrated into a chip or a group of chips, thereby effectively reducing the volume and weight of the gas shielded welding machine; the digital power supply can be easily expanded and upgraded through digital signals to meet the needs of different users, and 110V / 220V dual voltage is also expanded in the circuit, which is controlled and switched by two relays, thereby facilitating the use of customers and effectively improving the applicability of the gas shielded welding machine; moreover, the digital power supply can realize higher efficiency optimization through adaptive algorithm, so that the digital power supply can adjust the real-time coefficient under different load conditions to adapt to new load conditions, thereby improving the production efficiency.

[0058] Preferably, the digital power supply is easy to operate, easy to learn and use, and usually has a user interface with a liquid crystal display screen and multiple groups of buttons, etc., for intuitive operation, and can also easily realize parameter setting and changes.

[0059] As shown in Figures 1-2 , the capacitor C1 is connected in parallel with the resistor R1, and the capacitor C2 is connected in parallel with the resistor R2, the resistor R1 and the resistor R2 are connected in series, the series-connected resistor R1 and the resistor R2 are connected in parallel with the resistor R3 and the resistor R4, the resistor R3 and the resistor R4 are connected in series, the capacitor C3 is connected in parallel with the resistor R3, the capacitor C4 is connected in parallel with the resistor R4, and the capacitor C3 and the capacitor C4 are connected in series.

[0060] The connection of the capacitor C1, the capacitor C2, the resistor R1, the resistor R2, the resistor R3, the resistor R4, the capacitor C3 and the capacitor C4 is used for filtering the circuit.

[0061] As shown in Figure 1 and Figure 3 , the capacitor C3 and the capacitor C4 are also connected to a circuit with an inverting function, wherein the capacitor C3 is connected to the pin 2 of the transistor Q4, the pin 2 of the G5, and the capacitor C5, the capacitor C3 is connected to the pin 3 of the transistor Q6, the pin 3 of the transistor Q7, and the capacitor C6, the resistor R5, the resistor R6, the resistor R7 and the resistor R8 are connected in series between the capacitor C5 and the capacitor C6, wherein the resistor R6, the resistor R7, the pin 3 of the transistor Q4, the pin 3 of the transistor Q5, the pin 2 of the transistor Q6 and the pin 2 of the transistor Q7 are connected, and are connected to the resistor R26, the capacitor C8 and the pin 10 of the transformer T3, the resistor R26 and the capacitor C8 are connected in parallel, the resistor R26 and the capacitor C8 are connected in parallel, the pin 1 of the transistor Q4 is connected to the resistor R19, the resistor R19, the diode D4, the resistor R20 and the resistor R17 are connected in series, the resistor R19 is connected to the pin 1 of the transistor Q4, the resistor R20 is connected to the pin 1 of the transistor Q5, the resistor R18 is connected in series between the diode D4 and the resistor R17, and the resistor R17 and the resistor R18 are connected to the pin 9 of the transformer T3.

[0062] The pin 3 of the transistor Q6, the pin 3 of the transistor Q7 and the capacitor C6 are connected to the capacitor C7, the resistor R61 and the pin 1 of the transformer T3, the capacitor C7 and the resistor R61 are connected in parallel, and the parallel-connected capacitor C7 and the resistor R61 are connected to the resistor R13, the resistor R14, the diode D3 and the resistor R16, the resistor R15 is connected in series between the diode D3 and the resistor R16, and the resistor R16 and the resistor R15 are connected to the pin 2 of the transformer T3.

[0063] The pin 5 of the transformer T3 is connected to the pin 7 of the connector P1, and the pin 6 of the transformer T3 is connected to the pin 6 of the connector P1.

[0064] Pin 4 of connector P1 connects pin 4 of optocoupler U3 and pin 1 of connector P61, pin 3 of connector P61, pin 2 of connector P61 and pin 3 of optocoupler U3 are connected to ground GND respectively, and pin 5 of connector P1 connects 15V power pin, pin 1 of optocoupler U3 connects resistor R64, resistor R64 connects 24V power pin, pin 2 of optocoupler U3 connects diode D13, diode D13 connects pin 2 of relay J2 and diode D7.

[0065] As shown in Figure 1 , Figure 4 and Figure 5 , the circuit with inverse action is connected with the circuit with voltage reduction and two-flow rectification action, wherein pin 1 of connector P1 connects pin 3 of transformer T2, pin 2 of connector P1 connects pin 4 of transformer T2, pin 1 of transformer T2 connects QB pin, pin 2 of transformer T2 connects pin 1 of transformer T1, and pin 2 of transformer T1 connects resistor R6 and resistor R7.

[0066] Pin 3 of transformer T1 connects resistor R12, pin 1 and pin 3 of diode D21 and pin 1 of diode D22, resistor R12 connects capacitor C11, capacitor C11, pin 2 of diode D21 and pin 2 of diode D22 connect VOUT+ pin, pin 2 of diode D23 and capacitor C12, capacitor C12 connects resistor R11, pin 6 of transformer T1 connects pin 3 of diode D22, pin 3 and pin 1 of diode D23, and resistor R11.

[0067] As shown in Figure 1 and Figure 6 , the same circuit board of the above-mentioned circuit is further provided with a switching power supply circuit, the switching power supply circuit comprises chip U4, pin 1 of chip U4 connects internal ground OV, pin 2 of chip U4 is connected with resistor R37 and resistor R38 in parallel, resistor R37 and resistor R38 in parallel connect the same internal ground OV, pin 3 of chip U4 connects diode D17, capacitor C23, capacitor C24, resistor R36 and resistor R35, diode D17 connects pin 5 of transformer T4, capacitor C23, capacitor C24 and resistor R36 are connected with internal ground OV respectively, resistor R35 connects resistor R34, resistor R34 connects resistor R33, resistor R33 connects pin 1 of transformer T4, pin 2 of connector P8, and capacitor C25, resistor R32, resistor R31 and resistor R30 in parallel, capacitor C25, resistor R32, resistor R31 and resistor R30 in parallel connect diode D16, diode D16 connects pin 3 of transformer T4, and pin 5, pin 6, pin 7 and pin 8 of chip U4;

[0068] Pin 4 of chip U4 is connected to pin 4 of optocoupler U5 and capacitor C26, which is connected to the same internal ground OV as pin 3 of optocoupler U5, pin 1 of optocoupler U5 is connected to resistor R40 and capacitor C20, resistor R40 is connected to diode Z3, which is connected to a 15V power supply pin, capacitor C20 is connected to ground GND, and pin 2 of optocoupler U5 is connected to GND.

[0069] As shown in FIG. 1, the circuit includes an analog signal processing circuit, which includes chip U1 and chip U2. Figures 7-8 Figure 2 Pin 3 of chip U1 is connected to pin 3 of chip U2 and simultaneously connected to a 15V1 power supply pin.

[0070] Pin 1 of chip U1 is connected to ground, pin 2 of chip U1 is connected to resistor R5, which is connected to OUT2 pin, pin 4 of chip U1 is connected to resistor R4, which is connected to OUT1 pin, pins 5, 6, 7, and 8 of chip U1 are connected together, resistors R9, capacitor C1, and capacitor C2 are connected in parallel to pins 5, 6, 7, and 8 of chip U1, and the parallel connection of resistors R9, capacitor C1, and capacitor C2 is connected to pin 1 of connector J1.

[0071] Pin 1 of chip U2 is connected to ground, pin 2 of chip U2 is connected to resistor R3, which is connected to OUT4 pin, pin 4 of chip U2 is connected to resistor R2, which is connected to OUT3 pin, and pins 5, 6, 7, and 8 of chip U1 are all connected to pin 2 of connector J1.

[0072] Pin 3 of connector J1 is connected to a 15V power supply pin and capacitor C3, capacitor C3 is connected to diode D5, and diode D5 is connected to a 15V1 power supply pin, pin 4 of connector J1 is connected to ground and connected to capacitor C3.

[0073] Pin 5 of connector J1 is connected to diode D1 and diode D3, and pin 6 of connector J1 is connected to diode D2 and diode D4, diodes D1, D3, D2, and D4 are connected in series, resistors R8 are connected in series between diodes D1 and D3 or between diodes D2 and D4, resistors R6 and R7 are connected in parallel to resistors R8, diode D1 and resistors R8 are connected to resistor R1 and diode D8, resistor R1 is connected to a 15V power supply pin, diode D8 is connected to capacitor C7, resistor R13, and resistor R12, capacitor C7 and resistor R13 are connected in parallel, resistor R12 is connected to diode D6, capacitor C31, and ADC_PRI pin, and capacitor C7, resistor R13, diode D6, and capacitor C31 are connected to the same ground.

[0074] ​The pin 8 of the connector J1 is connected in series with the pin 10 of the connector J1, the resistor R17 is connected in parallel with the capacitor C8 and the diode D7, the pin 8 of the connector J1, the resistor R17, the capacitor C8 and the diode D7 are connected to the same ground, the pin 10 of the connector J1 is connected with the resistor R16, the diode D9 is connected with the resistor R15, the resistor R15 is connected with the 15V power pin.

[0075] As shown in Figure 7 and Figure 9 , the circuit Figure 2 comprises a temperature control circuit, the temperature control circuit is provided with a connector J3, the pin 1 of the connector J3 is connected with the resistor R18, and the resistor R18 is connected with the 15V1 power pin;

[0076] The pin 2 of the connector J3 is connected with the parallel resistor R20 and the capacitor C9, the resistor R20 and the capacitor C9 are connected in series with the resistor R24, the capacitor C9 and the resistor R24 are connected to the same ground, the resistor R20 and the resistor R24 are connected with the pin 1 of the transistor Q1, the pin 2 of the transistor Q1 is connected with the WENDU+ pin and the resistor R21, and the resistor R21 is connected with the ground;

[0077] The pin 3 of the connector J3 is connected with the resistor R22, the resistor R23 and the capacitor C10, the pin 4 of the connector J3 is connected with the resistor R19, the resistor R19 is connected with the capacitor C10, the resistor R25, the resistor R26 and the ground, the resistor R23 and the resistor R25 are connected with the pin 1 of the transistor Q2, the pin 3 of the transistor Q2 is connected with the 5V power pin, the pin 2 of the transistor Q2 is connected with the resistor R26 and the GUN_SW pin, and the resistor R22 is connected with the diode D11, and the diode D11 is connected with the 15V1 power pin.

[0078] As shown in Figure 7 and Figure 10 , the circuit Figure 2 comprises a temperature control detection circuit, the temperature control detection circuit is provided with a connector J6, the pin 1 of the connector J6 is connected with the ground GND, the pin 2 of the connector J6 is connected with the resistor R42 and the resistor R43, the resistor R42 is connected with the 15V1 power pin, the resistor R43 is connected with the resistor R40 and the pin 1 of the transistor Q4, the resistor R40 and the pin 2 of the transistor Q4 are respectively connected with the ground GND, the pin 3 of the transistor Q4 is connected with the 220 / 380SEL pin and the resistor R41, and the resistor R41 is connected with the 5V power pin.

[0079] As shown in Figure 7 and Figure 11 , the circuit Figure 2The micro control circuit includes a microcontroller U5, pin 1 of the microcontroller U5 is connected to the CURR_PRI pin, pin 2 of the microcontroller U5 is connected to the ADC_SETA pin, pin 3 of the microcontroller U5 is connected to the SDA pin, pin 4 of the microcontroller U5 is connected to the Key1 pin, pin 5 of the microcontroller U5 is connected to the ADC_PRI pin, pin 6 of the microcontroller U5 is connected to the ADC_VOLT pin, pin 8 of the microcontroller U5 is connected to the SEG30 pin, pin 9 of the microcontroller U5 is connected to the RST pin, pin 10 of the microcontroller U5 is connected to the SWDAT pin, pin 11 of the microcontroller U5 is connected to the SWCLK pin, pin 12 of the microcontroller U5 is connected to pin 13 of the microcontroller U5 in series with the capacitor C5, pin 12 of the microcontroller U5 is connected to the ground through the capacitor C5, pin 13 of the microcontroller U5 is connected to the 5V power supply pin through the capacitor C5, pin 14 of the microcontroller U5 is connected to the capacitor C12, the capacitor C13 and the 15V1 power supply pin, the capacitor C12 and the capacitor C13 are connected in parallel, and the parallel capacitor C12 and the capacitor C13 are connected to the same ground, pin 15 of the microcontroller U5 is connected to the ground, pin 16 of the microcontroller U5 is connected to the OUT4 pin, pin 17 of the microcontroller U5 is connected to the OUT3 pin, pin 18 of the microcontroller U5 is connected to the OUT2 pin, pin 19 of the microcontroller U5 is connected to the OUT1 pin, pin 20 of the microcontroller U5 is connected to the BREAK pin, pin 21 of the microcontroller U5 is connected to the MOTOR_PWM pin, pin 22 of the microcontroller U5 is connected to the 5V power supply pin and the capacitor C6, the capacitor C6 is connected to the ground, pin 24 of the microcontroller U5 is connected to the 220 / 380SEL pin, pin 25 of the microcontroller U5 is connected to the resistor R32, and the resistor R32 is connected to pin 1 of the transistor Q3, pin 2 of the connector J5 and the diode D10, the diode D10 and pin 1 of the connector J5 are respectively connected to the 15V power supply pin, pin 26 of the microcontroller U5 is connected to the GUN_SW pin, pin 27 of the microcontroller U5 is connected to the ADC_M pin, and pin 28 of the microcontroller U5 is connected to the WENDU+ pin.

[0080] The ADC_SETA pin is connected to pin 2 of the potentiometer RW1, pin 1 of the potentiometer RW1 is connected to the ground, and pin 3 of the potentiometer RW1 is connected to the 5V power supply pin.

[0081] The SEG30 pin is connected to the lamp LED1, and the lamp LED1 is connected to the resistor R27, and the resistor R27 is connected to the 5V power supply pin.

[0082] As shown in Figure 7 and Figure 12 , the circuit Figure 2The voltage stabilizing circuit includes a voltage stabilizing diode V1, which is connected with the power supply pin of 5V1 and the electrolytic capacitor E5. The electrolytic capacitor E5 is connected in parallel with the voltage stabilizing diode V1, and the electrolytic capacitor E5 and the voltage stabilizing diode V1 are connected with the same ground GND1.

[0083] As shown in Figure 7 and Figure 13 The circuit Figure 2 includes an interface circuit, which is provided with a chip U3. The pin 1 of the chip U3 is connected with the power supply pin of 5V1 and the capacitor C4, which is connected with the ground GND1. The pin 2 of the chip U3 is connected with the SG1 pin. The pin 3 of the chip U3 is connected with the SG2 pin. The pin 4 of the chip U3 is connected with the SG3 pin. The pin 5 of the chip U3 is connected with the SG4 pin. The pin 6 of the chip U3 is connected with the SG5 pin. The pin 7 of the chip U3 is connected with the SG6 pin. The pin 8 of the chip U3 is connected with the SG7 pin. The pin 9 of the chip U3 is connected with the GR6 pin. The pin 10 of the chip U3 is connected with the ground GND1. The pin 11 of the chip U3 is connected with the GR5 pin. The pin 12 of the chip U3 is connected with the GR4 pin. The pin 13 of the chip U3 is connected with the GR3 pin. The pin 14 of the chip U3 is connected with the GR2 pin. The pin 15 of the chip U3 is connected with the GR1 pin. The pin 16 of the chip U3 is connected with the resistor R60, and the resistor R60 is connected with the SDA pin.

[0084] The interface circuit is also provided with a connector JP1. The pin 1 of the connector JP1 is connected with the GR1 pin. The pin 2 of the connector JP1 is connected with the GR2 pin. The pin 3 of the connector JP1 is connected with the GR3 pin. The pin 4 of the connector JP1 is connected with the GR4 pin. The pin 5 of the connector JP1 is connected with the GR5 pin. The pin 6 of the connector JP1 is connected with the GR6 pin. The pin 7 of the connector JP1 is connected with the SG7 pin. The pin 8 of the connector JP1 is connected with the SG6 pin. The pin 9 of the connector JP1 is connected with the SG5 pin. The pin 10 of the connector JP1 is connected with the SG4 pin. The pin 11 of the connector JP1 is connected with the SG3 pin. The pin 12 of the connector JP1 is connected with the SG2 pin. The pin 13 of the connector JP1 is connected with the SG1 pin. The pin 14 of the connector JP1 is connected with the ground GND1. The pin 15 of the connector JP1 is connected with the resistor R63. The pin 16 of the connector JP1 is connected with the resistor R62. The pin 17 of the connector JP1 is connected with the resistor R61, and the resistors R63, R62 and R61 are connected with the same 15V power supply pin.

[0085] In the description of the utility model, it needs to explain, the term "upper", "lower", "front", "back", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, or is the orientation or position relation of the utility model product when using the usual placement, just is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element must have the specific orientation, with the specific orientation structure and operation, therefore can not be understood as the restriction of the utility model.

[0086] The above describes the multi-functional panel display of the gas shielded welding machine provided by the utility model in detail, the principle and implementation mode of the utility model are described by applying specific examples in this paper, the above embodiment is only used for helping to understand the utility model and core idea, it should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A multi-function panel display for a gas shielded welding machine, characterized in that, The network pin CON1 is connected to pin 1 of the rectifier bridge BD1, and the network pin CON2 is connected to pin 2 of the rectifier bridge BD1, and both the network pin CON1 and pin 1 of the rectifier bridge BD1 are connected to the second pin of the 220V power supply; The network pin CON2 and pin 2 of the rectifier bridge BD1 are connected in series with RT1, and the network pin CON2 and RT1 are connected to the first pin of the 220V power supply; The network pin CON2, one end of RT1 and the first pin of the 220V power supply are connected to pin 3 of the relay J1, the other end of RT1 and pin 2 of the rectifier bridge BD1 are connected to pin 4 of the relay J1, and pin 3 of the relay J2, pin 4 of the relay J2 is connected in series with the capacitor C1 between pin 3 of the rectifier bridge BD1, pin 3 of the rectifier bridge BD1 and the capacitor C1 are connected to the 310V power supply pin, pin 4 of the relay J2 and pin 1 of the rectifier bridge BD1 are connected in series with the capacitor C2, and pin 1 of the rectifier bridge BD1 and the capacitor C2 are connected to the internal ground OV; Pin 1 of the relay J1 and pin 2 of the relay J1 are connected in series with the diode D6, pin 2 of the relay J1 and the diode D6 are connected to the 24V power supply pin, pin 1 of the relay J1 and the diode D6 are connected to pin 2 of the transistor Q2, pin 3 of the transistor Q2 is connected to the ground GND, and pin 1 of the transistor Q2 is connected to the diode D5, the resistor R28 and the capacitor C36, the resistor R28 and the capacitor C36 are respectively connected to the ground GND; Pin 1 of the relay J2 and pin 2 of the relay J2 are connected in series with the diode D7, pin 1 of the relay J2 and the diode D7 are connected to the 24V power supply pin, pin 2 of the relay J2 and the diode D7 are connected to pin 2 of the transistor Q3, pin 3 of the transistor Q3 is connected to the ground GND, and pin 1 of the transistor Q3 is connected to the diode D8, the resistor R27, the capacitor C35 and pin 4 of the optocoupler U1, the resistor R27 is connected to the 24V power supply pin, and the capacitor C36 is connected to the ground GND; Pin 3 of the optocoupler U1 is connected to the ground GND, pin 1 of the optocoupler U1 and pin 2 of the optocoupler U1 are connected in series with the capacitor C30, and the capacitor C30 and pin 2 of the optocoupler U1 are connected to the first pin of the 220V power supply, pin 1 of the optocoupler U1 and the capacitor C30 are connected to the diode Z1, the diode Z1 is connected in series with the voltage-dependent resistor RV1, the voltage-dependent resistor RV1 is connected in series with R22, and R22 is connected in series with the diode D2; The diode D5 and the diode D8 are connected to pin 3 of the transistor Q1 and the diode Z2, the diode Z2 and pin 1 of the transistor Q1 are respectively connected to the ground GND, pin 2 of the transistor Q1 is connected to the capacitor C34, the resistor R26 and the resistor R25, and the capacitor C34 and the resistor R26 are respectively connected to the ground GND; The resistance R25 connects the capacitor C33, the resistance R24, the capacitor C32 and the pin 4 of the photoelectric coupler U2, the capacitor C33, the capacitor C32 and the pin 3 of the photoelectric coupler U2 are connected to the ground GND respectively, and the resistance R24 connects the pin of the 24V power supply; The pin 1 of the photoelectric coupler U2 and the pin 2 of the photoelectric coupler U2 are connected in series with the capacitor C31, the pin 2 of the photoelectric coupler U2 and the capacitor C31 are connected to the first pin of the 220V power supply, the pin 1 of the photoelectric coupler U2 and the capacitor C31 are connected to the resistance R23, and the resistance R23 is connected in series with the diode D1; The diode D1 is connected in series with the diode D2, and the diode D1 and the diode D2 are connected to the second pin of the 220V power supply.

2. The gas arc welding machine multi-function panel display of claim 1 wherein, The diode D6 guides the current from the pin 1 of the relay J1 to the pin 2 of the relay J1, and the diode D7 guides the current from the pin 1 of the relay J2 to the pin 2 of the relay J2.

3. The gas arc welding machine multi-function panel display of claim 1 wherein, The diode D5, the diode D8 and the diode Z1 all guide the current to the pin 3 of the transistor Q1.

4. The gas welding machine multi-function panel display of claim 1 wherein, The diode D1 guides the current to the resistance R23, the diode D2 guides the current to the resistance R22, and the diode Z1 guides the current to the piezoresistor RV1.

5. The gas arc welding machine multi-function panel display of claim 1 wherein, The capacitor C1 is connected in parallel with the resistance R1, the capacitor C2 is connected in parallel with the resistance R2, the resistance R1 and the resistance R2 are connected in series, the series-connected resistance R1 and the resistance R2 are connected in parallel with the resistance R3 and the resistance R4, the resistance R3 and the resistance R4 are connected in series, the resistance R3 is connected in parallel with the capacitor C3, the resistance R4 is connected in parallel with the capacitor C4, and the capacitor C3 and the capacitor C4 are connected in series.

6. The gas arc welding machine multi-function panel display of claim 5 wherein, The capacitor C3 connects the pin 2 of the transistor Q4, the pin 2 of G5 and the capacitor C5, the capacitor C3 connects the pin 3 of the transistor Q6, the pin 3 of the transistor Q7 and the capacitor C6, the capacitor C5 and the capacitor C6 are connected in series with the resistance R5, the resistance R6, the resistance R7 and the resistance R8 in sequence, wherein the resistance R6, the resistance R7, the pin 3 of the transistor Q4, the pin 3 of the transistor Q5, the pin 2 of the transistor Q6 and the pin 2 of the transistor Q7 are connected, and are connected to the resistance R26, the capacitor C8 and the pin 10 of the transformer T3, the resistance R26 and the capacitor C8 are connected in parallel, the series-connected resistance R26 and the capacitor C8, the pin 1 of the transistor Q4 is connected to the resistance R19, and the resistance R19, the diode D4, the resistance R20 and the resistance R17, the pin 1 of the transistor Q4 is connected to the resistance R19, the pin 1 of the transistor Q5 is connected to the resistance R20, the diode D4 and the resistance R17 are connected in series with the resistance R18, and the resistance R17 and the resistance R18 are connected to the pin 9 of the transformer T3; The pin 3 of the transistor Q6, the pin 3 of the transistor Q7 and the capacitor C6 are connected to the capacitor C7, the resistance R61 and the pin 1 of the transformer T3, the capacitor C7 and the resistance R61 are connected in parallel, and the series-connected capacitor C7 and the resistance R61 are connected to the resistance R13, the resistance R14, the diode D3 and the resistance R16, the diode D3 and the resistance R16 are connected in series with the resistance R15, the resistance R16 and the resistance R15 are connected to the pin 2 of the transformer T3. Pin 5 of transformer T3 is connected to pin 7 of connector P1, and pin 6 of transformer T3 is connected to pin 6 of connector P1.

7. The gas arc welding machine multi-function panel display of claim 6 wherein, Pin 4 of connector P1 is connected to pin 4 of optocoupler U3 and pin 1 of connector P61, pin 3 of connector P61, pin 2 of connector P61 are each connected to ground GND, and pin 5 of connector P1 is connected to 15V power pin, pin 1 of optocoupler U3 is connected to resistor R64, resistor R64 is connected to 24V power pin, pin 2 of optocoupler U3 is connected to diode D13, diode D13 is connected to pin 2 of said relay J2 and diode D7.

8. The gas arc welding machine multi-function panel display of claim 7 wherein, Pin 1 of connector P1 is connected to pin 3 of transformer T2, pin 2 of connector P1 is connected to pin 4 of transformer T2, pin 1 of transformer T2 is connected to QB pin, pin 2 of transformer T2 is connected to pin 1 of transformer T1, and pin 2 of transformer T1 is connected to said resistor R6 and resistor R7.

9. The gas arc welding machine multi-function panel display of claim 8 wherein, Pin 3 of transformer T1 is connected to resistor R12, pin 1 and pin 3 of diode D21 and pin 1 of diode D22, resistor R12 is connected to capacitor C11, capacitor C11, pin 2 of diode D21 and pin 2 of diode D22 are connected to VOUT+ pin, pin 2 of diode D23 and capacitor C12, capacitor C12 is connected to resistor R11, pin 6 of transformer T1 is connected to pin 3 of diode D22, pin 3 and pin 1 of diode D23, and resistor R11.

10. The gas welding machine multi-function panel display of claim 1 wherein, Chip U4 is provided, pin 1 of chip U4 is connected to internal ground OV, pin 2 of chip U4 is connected to resistor R37 and resistor R38 in parallel, resistor R37 and resistor R38 in parallel are connected to the same internal ground OV, pin 3 of chip U4 is connected to diode D17, capacitor C23, capacitor C24, resistor R36 and resistor R35, diode D17 is connected to pin 5 of transformer T4, capacitor C23, capacitor C24 and resistor R36 are each connected to internal ground OV, resistor R35 is connected to resistor R34, resistor R34 is connected to resistor R33, resistor R33 is connected to pin 1 of transformer T4, pin 2 of connector P8, and capacitor C25, resistor R32, resistor R31 and resistor R30 in parallel, capacitor C25, resistor R32, resistor R31 and resistor R30 in parallel are connected to diode D16, diode D16 is connected to pin 3 of transformer T4, and pin 5, pin 6, pin 7 and pin 8 of chip U4; Pin 4 of chip U4 is connected to pin 4 of optocoupler U5 and capacitor C26, capacitor C26 and pin 3 of optocoupler U5 are connected to the same internal ground OV, pin 1 of optocoupler U5 is connected to resistor R40 and capacitor C20, resistor R40 is connected to diode Z3, diode Z3 is connected to 15V power pin, capacitor C20 is connected to ground GND, and pin 2 of optocoupler U5 is connected to GND.

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