Make your own induction heater in just a few steps
The use of induction coils instead of traditional heating elements in heating equipment has significantly increased the efficiency of the units with less electricity consumption. Induction heaters have come on sale relatively recently, at relatively high prices. Therefore, the craftsmen did not remain without attention to this topic and figured out how to make an induction heater from a welding inverter.
Induction heaters are gaining popularity among consumers every day due to the following advantages:
high efficiency;
the unit operates almost silently;
induction boilers and heaters are considered relatively safe compared to gas equipment;
heating is fully automatic;
the equipment does not require constant maintenance;
due to the tightness of the device, leaks are excluded;
Due to the vibrations of the electromagnetic field, the formation of scale becomes impossible.
The advantages of this type of heater also include the simplicity of its design and the availability of materials for assembling the device with their own hands.
How induction heating works
The inductor type heater contains the following items.
Power generator. Thanks to this module, the alternating current of the household electrical network is converted into high frequency.
Inductor. It is made of copper wire twisted into a coil to form a magnetic field.
Heating element. It is a metal pipe placed inside the inductor.
All these elements, interacting with each other, work on the following principle. The high frequency current developed by the generator is routed to an inductance coil made of a copper conductor. The high frequency current is converted by the inductor into an electromagnetic field. Also, the metal pipe inside the inductor is heated due to the influence of vortices on the coil. The heat carrier (water) passing through the water heater picks up thermal energy and transfers it to the heating system. Also, the coolant acts as a cooler for the heating element, which extends the "lifetime" of the boiler.
In summary, this modification looks like this: a coil, namely its primary winding, should be connected after the high-frequency converter of the inverter instead of the built-in induction coil of the latter. Also, you will need to remove the diode bridge and solder the capacitor.
How does the welding inverter turn into an induction heater? video.
Induction furnace for metal
To make an induction heater from a welding inverter, the following materials are needed.
Inverter welder. Well, if the unit will be implemented smoothly adjustable current.
Copper tube about 8mm in diameter and long enough to wrap 7 turns around the 4-5cm diameter billet. Also, after the coils, the free ends of the tube should be about 25cm long.
To assemble the oven, proceed as follows.
Collect all the pieces of 4-5 cm in diameter that will serve as a template for winding a coil from a copper tube. It can be a round piece of wood, a metal or plastic pipe.
Take the copper tube and rivet one end with a hammer.
Fill the tube well with dry sand and rivet the second end. The sand will not allow the tube to break when twisting.
Make 7 turns of the tube around the template, then cut its ends and pour the sand.
Connect the resulting coil to a converted converter.
Induction water heater
The following structural elements will be required to assemble the boiler.
Inverter. The device is chosen such power, which is necessary for the heating boiler.
Thick wall tube (plastic), you can mark PN. Its length should be 40-50 cm, and the coolant (water) will pass through it. The inner diameter of the pipe must be at least 5 cm. In this case, the outer diameter will be 7.5 cm. If the inside diameter is less, the capacity of the boiler will be low.
Steel wire. You can also take a metal bar with a diameter of 6-7 mm. From a wire or a bar, small pieces (4-5 mm) are cut. These segments will act as a heat exchanger (core) of the inductor. Instead of steel parts, you can use a smaller diameter metal tube or a steel screw.
PCB sticks or rods on which the induction coil will be wound. Using PCB will save coil pipeheated, as this material is resistant to high temperatures.
Insulated cable Cross section of 1.5 mm2 and a length of 10-10.5 meters. Cable insulation should be fiberglass, enamel, fiberglass, or asbestos.
Make your own induction heater in just a few steps
The use of induction coils instead of traditional heating elements in heating equipment has significantly increased the efficiency of the units with less electricity consumption. Induction heaters have come on sale relatively recently, at relatively high prices. Therefore, the craftsmen did not remain without attention to this topic and figured out how to make an induction heater from a welding inverter.
Induction heaters are gaining popularity among consumers every day due to the following advantages:
high efficiency;
the unit operates almost silently;
induction boilers and heaters are considered relatively safe compared to gas equipment;
heating is fully automatic;
the equipment does not require constant maintenance;
due to the tightness of the device, leaks are excluded;
Due to the vibrations of the electromagnetic field, the formation of scale becomes impossible.
The advantages of this type of heater also include the simplicity of its design and the availability of materials for assembling the device with their own hands.
How induction heating works
The inductor type heater contains the following items.
Power generator. Thanks to this module, the alternating current of the household electrical network is converted into high frequency.
Inductor. It is made of copper wire twisted into a coil to form a magnetic field.
Heating element. It is a metal pipe placed inside the inductor.
All these elements, interacting with each other, work on the following principle. The high frequency current developed by the generator is routed to an inductance coil made of a copper conductor. The high frequency current is converted by the inductor into an electromagnetic field. Also, the metal pipe inside the inductor is heated due to the influence of vortices on the coil. The heat carrier (water) passing through the water heater picks up thermal energy and transfers it to the heating system. Also, the coolant acts as a cooler for the heating element, which extends the "lifetime" of the boiler.
In summary, this modification looks like this: a coil, namely its primary winding, should be connected after the high-frequency converter of the inverter instead of the built-in induction coil of the latter. Also, you will need to remove the diode bridge and solder the capacitor.
How does the welding inverter turn into an induction heater? video.
Induction furnace for metal
To make an induction heater from a welding inverter, the following materials are needed.
Inverter welder. Well, if the unit will be implemented smoothly adjustable current.
Copper tube about 8mm in diameter and long enough to wrap 7 turns around the 4-5cm diameter billet. Also, after the coils, the free ends of the tube should be about 25cm long.
To assemble the oven, proceed as follows.
Collect all the pieces of 4-5 cm in diameter that will serve as a template for winding a coil from a copper tube. It can be a round piece of wood, a metal or plastic pipe.
Take the copper tube and rivet one end with a hammer.
Fill the tube well with dry sand and rivet the second end. The sand will not allow the tube to break when twisting.
Make 7 turns of the tube around the template, then cut its ends and pour the sand.
Connect the resulting coil to a converted converter.
Induction water heater
The following structural elements will be required to assemble the boiler.
Inverter. The device is chosen such power, which is necessary for the heating boiler.
Thick wall tube (plastic), you can mark PN. Its length should be 40-50 cm, and the coolant (water) will pass through it. The inner diameter of the pipe must be at least 5 cm. In this case, the outer diameter will be 7.5 cm. If the inside diameter is less, the capacity of the boiler will be low.
Steel wire. You can also take a metal bar with a diameter of 6-7 mm. From a wire or a bar, small pieces (4-5 mm) are cut. These segments will act as a heat exchanger (core) of the inductor. Instead of steel parts, you can use a smaller diameter metal tube or a steel screw.
PCB sticks or rods on which the induction coil will be wound. Using PCB will save coil pipeheated, as this material is resistant to high temperatures.
Insulated cable Cross section of 1.5 mm2 and a length of 10-10.5 meters. Cable insulation should be fiberglass, enamel, fiberglass, or asbestos.
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