KR20130099567A - Voltage electric control system of self-contained all welding machine and generator - Google Patents

Abstract

PURPOSE: A voltage and current control system of a self-contained monolithic welding and power generating device is provided to impose heavy tasks on a generator regardless of capacity of the generator and to reduce unnecessary fuel consumption and the discharge of carbon dioxide by reducing the idle rotation of a motor. CONSTITUTION: A voltage and current control system of a self-contained monolithic welding and power generating device includes a welding device, a frame for installation and fixation, a storage battery, a motor, a generator, and a voltage and current control unit. The storage battery charges electricity, thereby supplying the electricity to the welding device. When the charged electricity of the storage battery is consumed, the generator charges the electricity by driving the motor. The welding device utilizes only the electricity charged in the storage battery. [Reference numerals] (AA) Voltage (V); (BB) Hour (H)

Description

Volt electric current control system of self-contained all welding machine and generator

The present invention relates to a voltage and current control system of a self-supporting integrated welding machine and generator, specifically, a prime mover and a generator for driving a generator, a storage battery connected to a voltage current controller, and a multifunction welding controller connected to a storage battery (CO ₂ , MMA, TIG). , MIG, MAG integrated control), when the welding machine is used in the field, the electric power charged to the battery is used first.When the voltage falls below the reference voltage, the voltage and current controller checks the battery voltage to start the motor and turn the generator to turn the voltage current. The controller charges the consumed power of the battery and stops the prime mover when it is fully charged, and stops the generator. It becomes the standby state. Self-supporting work to reduce fuel consumption and CO ₂ emissions The present invention relates to a voltage current control system for a body welding machine and generator.

Welder is divided into CO ₂ welder, MIG welder, MAG welder, TIG welder, ARC welder. Here, two methods of joining two media are classified into mechanical bonding and metallurgical bonding.

Mechanical joints give localized plastic deformation to the joint surface, such as bolted joints, rivet joints, and heat fittings.Metallurgical methods (or metallurgical methods) apply local energy by applying heat-like energy to the joint surface. Welding is a major part of this method, either by melting or by promoting the thermal diffusion of metal atoms.

The components required for welding work are somewhat different depending on the type of welding. ① Materials to be welded (base metal), ② heat source (heating source is mainly using gas heat or electric energy and chemical reaction heat, mechanical energy, electromagnetic wave energy) ③ Crayfish (welding rod or lead necessary for fusion) ④ Welder and welding equipment (welding cable, holder, torch, other tools, etc.) are necessary.

Therefore, first of all, in the background of the present invention, as the global efforts to reduce energy and reduce the amount of co2 generated, almost used for welding work in areas with relatively unstable electrical conditions or difficult construction equipment, etc. It is that all the generators to the use efficiency is very inefficient in use it as CO ₂ amount of less than 30% is very high and the energy efficiency is very low development preferentially been required. Second, various projects in poor countries with poor electrical conditions are increasing, but there are no high-efficiency generators for generating electricity and welding. Third, replacement of the existing generator and welding machine integrated power welding machine according to the high price and low efficiency (miller welding machine) is required. According to the survey, a fusion generator is required.

On the other hand, as a prior art, the Republic of Korea Utility Model Application No. 20-2005-0018211 (application date: June 24, 2005) has been disclosed "electric welder with improved current control function".

The electric welding machine, which improves the current regulation function according to the conventional utility model, includes an electric welder which drives a current regulating handle to regulate a current, and is equipped with a gear for driving the current regulating handle by receiving power; The gear is driven by a current regulating motor capable of forward and reverse rotation; The motor is rotated forward or reverse by a switch connected by wires; The switch is installed in a holder or a welding shield; A current meter indicating a current intensity at a point below the filter glass of the welding shield is configured to be connected to the switch by an electric wire; The welder is characterized in that the welding current is adjusted through the operation of the switch during welding.

However, even if the current is adjusted in the above manner, the actual current welding did not come out the proper current desired by the welder, or the current was adjusted again, or go directly to the welding machine where the current was often adjusted.

In addition, most welding machines are not used to operate the generator every time the welder is used, but for the welding machine that may be used at any time, the generator of the same capacity is operated before the start of work and used to operate the welder, for example, about 10 hours. When the generator is started, the actual welding machine is used for about 1 hour and the idle state is maintained for 9 hours without using the generator, and the generator is operated alone while releasing fuel consumption and CO ₂ . There is a problem in that the life is shortened by giving a force to the prime mover and generator.

Welder also has a welding situation of various methods in the work site is operated with a variety of welding machines, there is a problem in the equipment management because the type of welding machine is required in the field.

The present invention has been made in view of the above problems, the motor and the generator for turning the generator, and the storage battery connected to the voltage and current controller, and the multi-function welding controller connected to the storage battery (CO ₂ , MMA, TIG, MIG, MAG integrated control) When the welding machine is used in the field, the electric power charged to the battery is used first.When the voltage falls below the reference voltage, the battery voltage is checked by the voltage and current controller to operate the prime mover, and the generator is turned to turn on the generator. It charges the power and stops the prime mover when it is fully charged, and stops the generator to become a standby state. It is primarily buffered in the battery, so even if a small capacity generator is used, it does not overpower the generator and reduces idling of the prime mover to reduce fuel consumption and CO _2. An object of the present invention is to provide a voltage and current control system for a self-supporting integrated welding machine and generator capable of suppressing discharge.

In order to solve the above technical problem, a voltage-current control system of a self-supporting integrated welding machine and generator of the present invention includes: a welding machine; An installation fixing frame having a vibration absorbing device structure that provides a predetermined space and minimizes vibration; A storage battery at least partially mounted to the frame, for charging power and for supplying power to a welder; A prime mover at least partially mounted to said frame; A generator at least partially mounted to the frame, the generator configured to operate the prime mover to charge the power when the load is consumed to consume the stored power of the electrical storage device; And a voltage current controller for controlling the supplied power.

Preferably, the welder is characterized by using only the electric power charged in the storage battery.

Preferably, the voltage current controller checks the voltage of the battery, and when the voltage becomes less than the voltage at which the welding machine cannot operate, operates the prime mover and charges the power of the battery through the generator.

Preferably, the voltage and current control unit is characterized in that the prime mover and the generator when the battery is fully charged.

Preferably, the voltage current controller includes controlling the charging while checking the remaining amount of the battery, and controlling the voltage and the prime mover of the generator.

Preferably, the voltage current controller further includes short circuit, overload, reverse polarity protection, and automatic charging adjustment of the circuit.

Preferably, the automatic charging adjustment of the voltage current controller further includes equal charging and floating charging.

Preferably, the voltage current control unit is characterized in that the high frequency control, feed motor control, gas valve control.

The welding machine of the present invention as described above primarily uses the power charged in the battery, and when the voltage falls below the reference voltage, the battery current is checked by the voltage and current controller to operate the prime mover, and the generator is turned to turn on the generator. It charges the power and stops the prime mover when it is fully charged, and stops the generator to become a standby state. It is primarily buffered in the battery, so even if a small capacity generator is used, it does not overpower the generator and reduces idling of the prime mover to reduce fuel consumption and CO _2. It has the effect of suppressing the emission.

In addition, the welding machine and generator can be used as a generator when necessary, and then used as a welding machine if necessary, so that the welding machine and generator can be ideally fused to be utilized as a generator or a welding machine as necessary, and in particular, due to user's carelessness. Possible short-circuit protection, overload protection, reverse polarity protection, and automatic charge adjustment, which can cause damage.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the voltage-current control system of the self-supporting integrated welder and generator of this invention.
2 is a view showing a battery discharge curve of the voltage current control system of the self-supporting integrated welder and generator of the present invention.
3 is a view showing a battery constant current charging curve of a voltage current control system of a self-supporting integrated welding machine and generator of the present invention.
4 is a view showing a battery constant voltage charge curve of the voltage current control system of the self-supporting integrated welding machine and generator of the present invention.

welding machine;

An installation fixing frame having a vibration absorbing device structure that provides a predetermined space and minimizes vibration;

A storage battery at least partially mounted to the frame, for charging power and for supplying power to a welder;

A prime mover at least partially mounted to said frame;

A generator at least partially mounted to the frame, the generator configured to operate the prime mover to charge the power when the load is consumed to consume the stored power of the electrical storage device;

It has been achieved by providing a voltage current control system of a self-supporting integrated welder and generator, comprising a voltage and current controller for controlling the power supplied.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications are possible.

The voltage and current control system of the self-supporting integrated welding machine / generator of the present invention integrates the welding machine 160 and the generator 120 to be used as the generator 120 when necessary, and can be used as the welding machine 160 as necessary. The welder 160 and the generator 120 are most ideally fused with a voltage current control system configured to be used as the generator 120 or the welder 160 as necessary.

In addition, the prime mover 130 and the generator 120 to rotate the generator 120, and the storage battery 140 connected to the voltage and current control unit 150, and the multi-function welder controller (CO ₂ , MMA, TIG, connected to the storage battery 140) MIG, MAG integrated control), when the welding machine 160 is used in the field, the electric power charged in the storage battery 140 is primarily used, and the welding machine 160 is operated at a voltage below a predetermined reference voltage. When the voltage and current controller 150 checks the voltage of the battery 140 to operate the prime mover, the generator 120 is turned to charge the power of the battery 140 consumed through the voltage and current controller 150, and stop the prime mover when fully charged. The generator 120 is stopped to be in a standby state, and the battery 140 is primarily buffered so that the generator 120 may be idle without idling even when the generator 120 having a small capacity is used. Reduce fuel consumption and CO2 The output can be suppressed.

Referring to Figure 1, the present invention is the most ideal to configure the system so that the welder 160 and the generator 120 to be used as the generator 120 when necessary to be used as the welder 160, if necessary The current is arbitrarily adjusted to be charged.

Here, the charging current of the battery 140 of the welder 160 and the generator 120 is divided into a charging current, a load current operated according to excessive use, and a generator current in which no current is made above the specifications. .

Charging should be as long as possible with as little current as possible, but ideally fuse the welder 160 and the generator 120 to propose a system that can be utilized as the generator 120 or welder 160 as needed.

In particular, it is related to a system configured to enable short circuit protection, overload protection, reverse polarity protection, and automatic charge adjustment since damage due to user's carelessness may occur.

First, the configuration includes a frame 110, a generator 120, a prime mover 130, a storage battery 140, a voltage current controller 150, a welder 160 and the like.

The frame 110 provides a predetermined space and is provided for installation fixing having a vibration absorber structure to minimize vibration.

The frame 110 has a vibration absorber or structure that minimizes vibration of the prime mover 130.

In addition, the generator 120 mounted at least in part on the frame 110 operates when the load is consumed to consume the storage power of the storage battery 140.

The prime mover 130 is at least partially mounted to the frame 110.

Such a self-supporting integrated welder and generator is provided with a frame 110 that protects internal components of the welder 160. The prime mover 130 and generator 120 are at least partially protected by the frame 110. The prime mover 130 drives the generator 120, which in turn produces electricity for the welder 160.

At this time, a regulator for storing an irregular power generation voltage according to the rotational speed of the generator 120 in the storage battery 140 is provided.

In addition, it is possible to control the charging device capable of controlling the charging current and the charging voltage, the battery voltage and the load current, etc. by the generator start stop control device.

The supplied power is controlled by the voltage current controller 150.

The voltage current controller 150 integrates the welder 160 and the generator 120 to be used as the generator 120 when necessary, and if necessary, a logical algorithm is required to be used as the welder 160.

In order to maximize the efficiency of the generator 120, when the electric power generated by the generator 120 is not used, the unused spare power is charged to the storage battery 140, and the charging value is a predetermined value, that is, the storage battery 140 is fully charged. When reaching the generator 120 to stop the consumption of energy and the generation of CO _{2 of the} prime mover.

As such, when the load is operated to consume power that the storage power of the storage battery 140 cannot operate the welder 160, the generator 120 is operated.

The voltage current controller 150 measures the voltage of the battery 140 and the current flowing into or out of the battery 140, compares the supply voltage and the current of the charging circuit, and checks the state of the battery 140 in real time. Monitoring the state of the battery 140 to monitor the charging conditions and the timing of replacement).

In addition, the voltage and current controller 150 can adjust CO2, MMA, TIG, MIG, MAG welding in one integrated welder by adjusting the mode required by the multifunction welder through high frequency control, feed motor control, and gas valve control. Make sure

Specifically, in the field, the welder 160 primarily uses the electric power charged in the storage battery 140 and falls below the reference voltage (the voltage at which the welding machine can operate). ) Check the voltage (check the voltage that the welder can operate) to start the prime mover 130 and turn the generator 120 to charge the power of the battery 140 consumed through the voltage and current control unit 150, and the buffer during the buffer It stops 130 and stops the generator 120 to become a standby state.

The prime mover 130 and the generator 120 adjust the number of poles of the generator 120 to the number of revolutions of the prime mover 130 in order to minimize losses and maximize power generation efficiency by using a method of connecting to one axis.

A regulator device for storing irregular power generation voltage according to the rotational speed of the irregular prime mover 130, a charging device capable of controlling the charging current and the charging voltage, a generator in consideration of the voltage and the load current of the battery 140 It includes a start stop control device.

The generator 120 and the generator control device are manufactured in a structure corresponding to four seasons such as heavy rain, heavy snow, cold areas, heat zones. The prime mover 130 is based on the use of diesel fuel, but also considering the use of gasoline prime mover. The prime mover 130 should consider fuel efficiency, stable output, and the like, and fit the output of the generator 120 as a prime mover capable of obtaining an output of about 50 hp.

On the other hand, the voltage and current control unit 150 of the present invention is designed from the viewpoint that the following elements are essential to make the battery 140 system. That is, short circuit protection of the circuit, protection of the equipment from overload, reverse polarity protection, automatic charging adjustment function is proposed.

First, to protect the short circuit. When the internal circuit of the battery 140 is short-circuited and cannot function properly, the output is automatically cut off, and thus the battery 140 has a function to protect the battery 140 from being damaged by excessive charging or short-circuit. If the output is not cut off due to a short circuit, problems such as continuous charging or shorting both terminals of the battery 140 may occur.

Even if the output terminals are shorted to each other while the capacitor 140 is turned on, the capacitor 140 should be designed to automatically and safely turn off without damaging the output terminals.

Next, the equipment must be protected from overload. When a bad battery that the capacitor 140 cannot charge is connected, a problem occurs that the current increases and an overload occurs in the case of a general capacitor 140. If the overload is applied to the capacitor 140 is unstable can increase the current damage the equipment. When charging with high efficiency, it should be configured to automatically control the output within the capacity limit of the capacitor 140 without automatically discharging the current greater than the maximum output current, so as not to cause excessive charge for the charging of the battery 140. .

It is also reverse polarity protection. A common mistake in connecting the capacitor 140 to the terminals of the battery 140 to charge the battery 140 is a problem in which the polarity is reversed. This is because the general capacitor 140 may damage the capacitor 140 if the polarity is reversed. If the output polarity is reversed, the output should be designed to automatically cut off and turn off.

Anyone with general knowledge should be able to use it easily and safely.

And automatic charge adjustment is required. There are two types of charging methods for charging the storage battery 140, which are equal charging and floating charging. Capacitor 140 automatically performs even charging and floating charging automatically according to the state of the battery 140, so if you only connect the battery 140, you need to perform the charging perfectly. This is because the general capacitor 140 does not have such a function so that the battery is overcharged, thereby causing the battery 140 to fail or shorten the lifespan.

When the battery 140 is discharged a lot, the battery 140 is initially charged with a uniform current by floating charging, and when the battery 140 is charged above a level capable of operating the welding machine 160, the battery is automatically charged at a slightly higher voltage by an equal charge. The lifespan of the storage battery 140 may be stable so as not to be excessively added to the battery 140. Using a battery connected in parallel to the output of the capacitor 140 can perform a great function as a DC power supply.

In this case, when a backup function is required in an emergency situation or in the case of a power failure of 1 hour or more, the function can be faithfully performed by connecting the storage batteries 140 in parallel.

This upgrades to a power supply with a higher level of backup than a regular power supply.

Example

2 to 4, the voltage current controller 150 sets the capacity of the battery 140 to 220V 75Ah. The basic unit of current is A.

If, for example, the alternator is 220V / 80A, it means the voltage and current capacity the alternator can produce. That means the voltage must be slightly higher than it actually is and the current can be up to 80A. If the load is 220V / 10A, Alternatey has a 70A margin. If the load is 220V / 80A, no further load should be used. AH (ampere hour) means the amount of charged current that can be used per unit time. When the battery 140 is fully charged, even if it generates more power, the battery 140 is no longer acceptable. It means.

So, if you look at the relationship between A and AH 220V / 80AH battery 140 is connected to the electrical device that consumes 220V / 80A, the battery 140 can only be used for one hour.

Based on this, the storage battery 140 uses a unit called AH. Here, the reference voltage of 220V is a voltage to be provided to the welder, which requires a large amount of current at a time when the welder 160 is used due to the characteristics of the welder 160. When the reference voltage is lowered to 220V or less, in order to obtain the power required for operation of the components in the inverter according to the relationship of P = V * I, when the V is lowered, the I value increases and the component price increases as the capacity of the component increases. Many differences occur.

On the other hand, by connecting 18 of the 12V battery 140 in series to make a voltage of 220V. When the battery 140 is fully charged and used for the first time, there is no problem, but when the battery is continuously charged and discharged, several batteries connected in series do not have the same charge and discharge. When the discharge current is high, the discharge occurs preferentially in the battery 140 adjacent to the minus. The battery 140 connected to the external outside connected without going through the other battery 140 relies only on the external external load, but the other battery 140 connected inside. ) Is discharged through the other battery 140, the capacity consumption difference between the battery 140 occurs due to the load of the internal resistance and the connection terminal.

Therefore, when this condition continues, the lifespan of the storage battery 140 is shortened by overcharging and overdischarging the specific storage battery 140. In order to solve this problem, it is necessary to maintain the voltage of each battery 140 by applying individual charging of each battery 140 and applying a voltage balance.

In addition, the standard charging of 0.1C or less is recommended due to the charging characteristics of the commercial battery 140.

When charging with a high current, a lot of gas is generated along with heat, which shortens the life of the battery 140 due to corrosion of the positive electrode substrate, loss of active material of the positive electrode plate, and lack of electrolyte.

On the other hand, due to the complexity of the individual charging system of the battery 140 using the voltage balance for the normal use of the battery 140, the DC voltage of the battery 140 and the small internal resistance characteristics of the battery 140, the human and physical properties in the operation process In order to reduce the number of accumulators 140 connected in series due to a safety accident, the reference voltage is lowered and the capacity of the generator 120 is reduced in order to reduce the problems caused by the charging and discharging characteristics of the accumulators 140. Follow the charging method recommended by the maximal use of the welding machine 160, instead of the capacity of the generator 120 lacking the storage battery 140, the buffer function instead of using a high current capacity components in the inverter instead

As such, when the welder 160 and the generator 120 are integrated to reduce the CO ₂ generated from the prime mover 130 when the welder 160 is not used, the idle power is charged from the storage battery 140, and the charging is completed. The voltage and current controller 150 controls the prime mover 130 to stop the prime mover 130.

When a load is generated and power is needed, the power of the primary battery 140 immediately charged and the charging capacity of the battery 140 decreases below the reference level, the voltage current controller 150 starts the prime mover 130 The generator 120 is charged to operate, and the load of the load is high, so that when the excessive power is required for the generator 120, the charged battery 140 to reduce the excessive use of the generator 120 by the buffering action to extend the life span System.

Although described and illustrated with respect to some embodiments for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as described and described as such, and deviate from the scope of the technical idea It will be appreciated by those skilled in the art that many modifications and variations can be made to the present invention without departing from the scope of the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

110: frame 120: generator
130: prime mover 140: storage battery
150: voltage current control unit 160: welder

Claims (5)

welding machine;
An installation fixing frame having a vibration absorbing device structure that provides a predetermined space and minimizes vibration;
A storage battery at least partially mounted to the frame, for charging power and for supplying power to a welder;
A prime mover at least partially mounted to said frame;
A generator at least partially mounted to the frame, the generator configured to operate the prime mover to charge the power when the load is consumed to consume the stored power of the electrical storage device;
A voltage current control system for a self-supporting integrated welding machine and generator, comprising: a voltage current control unit controlling a power supply to be supplied.
The method of claim 1,
The welder,
A voltage and current control system for a self-supporting integrated welding machine and generator, using only electric power charged in a storage battery.
The method of claim 1,
The voltage current controller,
It checks the voltage of battery and if it is below the voltage that can not operate the welding machine, it operates the prime mover and charges the battery power through the generator.When the battery is fully charged, the prime mover and generator are charged while checking the remaining battery capacity. The voltage current control system of the self-supporting integrated welder and generator, characterized in that for controlling the voltage control and the prime mover of the generator.

The method of claim 1,
The voltage current controller,
A voltage and current control system for a self-supporting integrated welder and generator further comprising short circuit, overload, reverse polarity protection, automatic charge adjustment, high frequency control, feed motor control, and gas valve control.
5. The method of claim 4,
The automatic charge adjustment of the voltage current control unit is a voltage current control system of a self-supporting integrated welder and generator further comprising equal charging and floating charging.

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