CN202539762U

CN202539762U - Novel electric welding machine energy saver

Info

Publication number: CN202539762U
Application number: CN201220077649XU
Authority: CN
Inventors: 赵华平
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-11-21
Anticipated expiration: 2022-03-05

Abstract

The utility model relates to a novel electric welding machine energy saver which comprises a current induction coil, a trigger circuit, a delay circuit, an optical coupling isolation control and silicon controlled driving circuit, a high-power device control circuit, a standby step-down power supply and output circuit and a power source circuit, wherein the current induction coil is connected with the input ends of the trigger circuit and the delay circuit and is used for providing trigger signals for the trigger circuit and the delay circuit; the output ends of the trigger circuit and the delay circuit are connected with the input end of the optical coupling isolation control and silicon controlled driving circuit, and the trigger circuit and the delay circuit are used for controlling an optical coupling chip of the optical coupling isolation control and silicon controlled driving circuit; and the output end of the optical coupling isolation control and silicon controlled driving circuit is connected with the input end of the high-power device control circuit, and the optical coupling isolation control and silicon controlled driving circuit is used for controlling a high-power module controller of the high-power device control circuit. The novel electric welding machine energy saver has the advantages of improving personal safety, saving electricity by 90%, prolonging the service life of a welding machine and reducing equipment maintenance and has no contact and long service life.

Description

Novel electricity-saving appliance of the arc welding generator

Technical field

The utility model relates to energy saver, particularly a kind of electricity-saving appliance of the arc welding generator.

Background technology

At present, electricity-saving appliance of the arc welding generator mainly is made up of A.C. contactor, relay, microswitch, the break-make of A.C. contactor control welder power; A.C. contactor is controlled by relay, and relay is controlled by microswitch, when electric welding machine is worked; If closed microswitch; Then relay closes is controlled the power supply that A.C. contactor is connected electric welding machine, and electric welding machine begins welding; Otherwise if microswitch breaks off, then relay breaks off, and the control A.C. contactor is disconnected the power supply of electric welding machine, does not promptly have open circuit loss, thereby reaches the purpose of economize on electricity.Can find out from above technical scheme,, make that the striking speed of electric welding machine is slower because A.C. contactor is the mechanical contact-type switch; In addition; A.C. contactor in the electricity-saving appliance of the arc welding generator need be switched on or switched off continually, if under the situation of big electric current, A.C. contactor is switched on or switched off continually and is easy to generate spark and arcing phenomenon; Even the danger of the blast of producing is arranged, and can shorten the service life of A.C. contactor.

The utility model content

The purpose of the utility model is exactly to the deficiency of prior art existence a kind of novel electricity-saving appliance of the arc welding generator to be provided.

To achieve these goals, the technical scheme of the utility model employing is:

Comprise induction by current coil, circuits for triggering and delay circuit, light-coupled isolation control and controllable silicon drive circuit, high power device control circuit, standby step-down power supply and output circuit, power circuit; Said induction by current coil is connected with the input of circuits for triggering and delay circuit, is used to circuits for triggering and delay circuit provides triggering signal; The output of said circuits for triggering and delay circuit is connected with the input of light-coupled isolation control and controllable silicon drive circuit, is used to control the optically-coupled chip of light-coupled isolation control and controllable silicon drive circuit; The output of said light-coupled isolation control and controllable silicon drive circuit is connected with the input of high power device control circuit, is used to control the high power module controller of high power device control circuit; The output of said high power device control circuit is connected with electric welding machine, is used to electric welding machine working power is provided; The output of said standby step-down power supply and output circuit is connected with electric welding machine, is used to electric welding machine standby voltage is provided; The output of said power circuit is connected with the power input of light-coupled isolation control and controllable silicon drive circuit.

Be connected with the A.C. contactor standby control circuit between the input of the output of said circuits for triggering and delay circuit and high power device control circuit; The input of A.C. contactor standby control circuit is connected with the output of circuits for triggering and delay circuit, and the output of A.C. contactor standby control circuit is connected with the input of high power device control circuit; The output of said power circuit is connected with the power input of A.C. contactor standby control circuit.

Said power circuit comprises transformer, rectification circuit, the current limliting mu balanced circuit that connects successively; The input of transformer is connected with external power supply, and the output of current limliting mu balanced circuit is connected with the power input of light-coupled isolation control and controllable silicon drive circuit, the power input of A.C. contactor standby control circuit respectively.

Said induction by current coil is made up of A induction by current coil and B induction by current coil, and A induction by current coil triggers the main induction coil for the step-down standby, and B induction by current coil is a work afterflow auxiliary induction coil.

The beneficial effect of the utility model: raising personal safety, power saving rate reach 90%, prolong the welding machine life-span, reduce plant maintenance, contactless high life.

Description of drawings

Fig. 1 is the functional-block diagram of the utility model;

Fig. 2 is the circuit theory diagrams of the utility model.

The specific embodiment

See Fig. 1, shown in 2, the utility model comprises induction by current coil 1, circuits for triggering and delay circuit 2, light-coupled isolation control and controllable silicon drive circuit 3, high power device control circuit 4, standby step-down power supply and output circuit 5, power circuit 6.Said induction by current coil 1 is connected with the input of circuits for triggering and delay circuit 2, is used to circuits for triggering and delay circuit 2 provides triggering signal; The output of said circuits for triggering and delay circuit 2 is connected with the input of light-coupled isolation control and controllable silicon drive circuit 3, is used to control the optically-coupled chip of light-coupled isolation control and controllable silicon drive circuit 3; The output of said light-coupled isolation control and controllable silicon drive circuit 3 is connected with the input of high power device control circuit 4, is used to control the high power module controller of high power device control circuit 4; The output of said high power device control circuit 4 is connected with electric welding machine 7, is used to electric welding machine 7 working power is provided; The output of said standby step-down power supply and output circuit 5 is connected with electric welding machine 7, is used to electric welding machine 7 standby voltage is provided; The output of said power circuit 6 is connected with the power input of light-coupled isolation control and controllable silicon drive circuit 3.

Be connected with A.C. contactor standby control circuit 8 between the input of the output of present embodiment circuits for triggering and delay circuit 2 and high power device control circuit 4; The input of A.C. contactor standby control circuit 8 is connected with the output of circuits for triggering and delay circuit 2, and the output of A.C. contactor standby control circuit 8 is connected with the input of high power device control circuit 4; The output of said power circuit 6 is connected with the power input of A.C. contactor standby control circuit 8; When light-coupled isolation control and controllable silicon drive circuit 3 damages; The user can select for use A.C. contactor standby control circuit 8 to use as interim substituting; And, as long as the user stirs two-way choice K switch O, just can select light-coupled isolation control and controllable silicon drive circuit 3 or A.C. contactor standby control circuit 8 as required for use.

The power circuit 6 of present embodiment comprises transformer 61, rectification circuit 62, the current limliting mu balanced circuit 63 that connects successively; The input of transformer 61 is connected with external power supply; The output of current limliting mu balanced circuit 63 is connected with the power input of light-coupled isolation control and controllable silicon drive circuit 3, the power input of A.C. contactor standby control circuit 8 respectively, presses for light-coupled isolation control and controllable silicon drive circuit 3 and A.C. contactor standby control circuit 8 provide galvanic current.

The induction by current coil 1 of present embodiment is made up of A induction by current coil and B induction by current coil, and A induction by current coil triggers the main induction coil for the step-down standby, and B induction by current coil is a work afterflow auxiliary induction coil.

The circuits for triggering of present embodiment and delay circuit 2 comprise triode V1, diode D1～D7, resistance R 1～R4, capacitor C 1, C2; Wherein, D1, D2 are the main induction commutation diode that triggers; C1 is a filter delay electric capacity, and R1 is the big minor mode resistance of induced signal, and the effect of these three elements is for V1 main triggering and conducting to be provided; D3, D4 are the work afterflow auxiliary triggering commutation diode of B induction by current coil, and W1 is a decompression tube, and C2 is that filtering postponed electric capacity in double second, and R2 is the big minor mode resistance of induced signal, and the effect of these five elements is for V1 the auxiliary triggering conducting to be provided; D5 is the signal voltage isolating diode, plays the effect that main signal and auxiliary signal are separated; D6, D7 are that V1 drinks signal conduction strength control diode, are used to regulate the sensitivity of circuits for triggering; V1 is the signaling switch triode, and its effect is to drive light-coupled isolation control and controllable

silicon drive circuit

3 or 8 work of A.C. contactor standby control circuit.

The light-coupled isolation control of present embodiment and controllable silicon drive circuit 3 comprise resistance R 8～R11, capacitor C 8, high-power driving pipe K1, optically-coupled chip U1, U2; Wherein, optically-coupled chip U1, U2 series connection, their effect are to isolate to exchange and direct current signal; And triggering high-power driving pipe K1; And the cascaded structure of optically-coupled chip U1, U2 can increase the stability of circuit, and high-power driving pipe K1 is used to drive the high power module controller of high power device control circuit 4.

The high power device control circuit 4 of present embodiment comprises resistance R 12, capacitor C 9, the high power module controller that controllable silicon K3, K4 form; The high power module controller is used to connect standby step-down power supply and output circuit 5 and electric welding machine 7, and when the conducting of high power module controller, standby step-down power supply and output circuit 5 are communicated with electric welding machine 7, for electric welding machine 7 provides power supply.

The standby step-down power supply of present embodiment and output circuit 5 comprise resistance R 13～R15, adjustable resistance RW, capacitor C 5～C7, phase shift diac V2, V3, controllable silicon K2; The effect of said resistance R 15, adjustable resistance RW, capacitor C 6 is for phase shift triggers two utmost point V2, V3 provides the phase shift trigger voltage; And adjustable resistance RW is used to regulate the size of phase shift trigger voltage, and K2 is used to control the size of standby output voltage.

When electric welding machine 7 work; Be connected the soldering turret line of electric welding machine 7 and the A induction by current coil between the ground wire produces big electric current, and trigger induction commutation diode D1, D2 triggering signal switch triode V1 conducting through main; The V1 conducting makes the optically-coupled chip U1 of light-coupled isolation control and controllable silicon drive circuit 3, U2 connect; After optically-coupled chip U1, U2 connect, can trigger high-power driving pipe K1 conducting, K1 then can drive high power module controller controllable silicon K3, the K4 conducting of high power device control circuit 4; Standby step-down power supply and output circuit 5 are connected, for electric welding machine 7 provides power supply with electric welding machine 7; At this moment, if electric welding machine 7 continuous firings (in 3 seconds), B induction by current coil can produce electric current, is that V1 provides the auxiliary triggering conducting through work afterflow auxiliary triggering commutation diode D3, D4, makes the more stable work of circuits for triggering and delay circuit 2; When electric welding machine 7 is not worked (promptly unloaded); A induction by current coil does not produce big current signal; Circuits for triggering and delay circuit 2, light-coupled isolation control and controllable silicon drive circuit 3, high power device control circuit 4 are not all worked; Make the disconnection that is connected of standby step-down power supply and output circuit 5 and electric welding machine 7, promptly break off the power supply of electric welding machine 7, thereby reach the purpose of economize on electricity.

Claims

1. novel electricity-saving appliance of the arc welding generator comprises induction by current coil, circuits for triggering and delay circuit, light-coupled isolation control and controllable silicon drive circuit, high power device control circuit, standby step-down power supply and output circuit, power circuit; It is characterized in that:

Said induction by current coil is connected with the input of circuits for triggering and delay circuit, is used to circuits for triggering and delay circuit provides triggering signal;

The output of said circuits for triggering and delay circuit is connected with the input of light-coupled isolation control and controllable silicon drive circuit, is used to control the optically-coupled chip of light-coupled isolation control and controllable silicon drive circuit;

The output of said light-coupled isolation control and controllable silicon drive circuit is connected with the input of high power device control circuit, is used to control the high power module controller of high power device control circuit;

The output of said high power device control circuit is connected with electric welding machine, is used to electric welding machine working power is provided; The output of said standby step-down power supply and output circuit is connected with electric welding machine, is used to electric welding machine standby voltage is provided.

2. novel electricity-saving appliance of the arc welding generator according to claim 1; It is characterized in that: be connected with the A.C. contactor standby control circuit between the input of the output of said circuits for triggering and delay circuit and high power device control circuit; The input of A.C. contactor standby control circuit is connected with the output of circuits for triggering and delay circuit, and the output of A.C. contactor standby control circuit is connected with the input of high power device control circuit.

The output of said power circuit is connected with the power input of A.C. contactor standby control circuit.

3. novel electricity-saving appliance of the arc welding generator according to claim 2; It is characterized in that: said power circuit comprises transformer, rectification circuit, the current limliting mu balanced circuit that connects successively; The input of transformer is connected with external power supply, and the output of current limliting mu balanced circuit is connected with the power input of light-coupled isolation control and controllable silicon drive circuit, the power input of A.C. contactor standby control circuit respectively.

4. novel electricity-saving appliance of the arc welding generator according to claim 1; It is characterized in that: said induction by current coil is made up of A induction by current coil and B induction by current coil; A induction by current coil triggers the main induction coil for the step-down standby, and B induction by current coil is a work afterflow auxiliary induction coil.