Peltier (element) how to do it yourself?

Element Peltier is usually called a converter, which is able to work on the temperature difference. This occurs by the flow of electrical current through the conductors through the contacts. For this purpose, special plates are provided in the elements. Heat from one side goes into the other.

To date, this technology is in demand primarily due to the significant heat output. In addition, devices can boast of compactness. Radiators for many models are installed slabenkie. This is due to the fact that the heat flow quickly cools. As a result, the desired temperature is maintained constantly.

The element does not have movable parts. The devices work absolutely noiselessly, and this is an undoubted advantage. Also it should be said that they can be used for a very long time, and cases of breakdowns are extremely rare. The simplest type consists of copper conductors with contacts and connecting wires. In addition, there is an insulator on the cooling side. It is usually made of ceramic or stainless steel.

Why do we need Peltier elements?

Peltier elements are most often used for the manufacture of refrigerators. Usually we are talking about compact models that can be used, for example, by motorists on the road. However, the application area of the devices does not come to an end. Recently, Peltier elements have been actively installed in sound, as well as acoustic equipment. There they are able to perform the functions of the cooler.

As a result, the cooling of the amplifier of the device occurs without any noise. For portable compressors, Peltier elements are indispensable. Speaking of the scientific industry, scientists are using these devices to cool the laser. At the same time, it is possible to achieve significant stabilization of the study wave from light-emitting diodes.

Disadvantages of Peltier models

It would seem that such a simple and effective device is free of flaws, but they are available. First of all, specialists immediately noted the small breakdown capacity of the module. This indicates that the person will have some problems if he wants to cool the device, which operates on a 400-V network. In this case, a special dielectric paste will partially help solve this problem. However, the breakdown of the current will still be high and the winding of the Peltier element may fail.

Additionally, these models are not advised to be used for precision electronics. Since there are metal plates in the structure of the element, the sensitivity of the transistors can be violated. The last drawback of the Peltier element can be called a small coefficient of efficiency. To achieve a significant temperature difference, these devices are not capable.

Controller Module

To make Peltier's element for the regulator is quite simple. To do this, you must pre-prepare two metal plates, as well as wiring with contacts. First of all, conductors are prepared for installation, which will be located at the base. Usually they are purchased with the label "PP".

In addition to normal temperature control, semiconductors at the output should be provided. They are necessary in order to quickly give heat to the top plate. To install all the elements, use a soldering iron. To complete the Peltier element with your own hands, the last two wires are connected. The first is mounted at the bottom base and fixed at the outer conductor. The contact with the plate should be avoided.

Next, the second wire is attached to the upper part. Fixation is also carried out to the extreme element. In order to test the operation of the device, a tester is used. For this, two wires must be connected to the device. As a result, the voltage deviation should be approximately 23 V. In this situation, much depends on the power of the regulator.

Refrigerators with thermistor

How to make a Peltier element with your own hands for a refrigerator with a thermistor? Answering this question, it is important to note that the plates for it are selected exclusively from ceramics. At the same time, about 20 conductors are used. This is necessary in order for the temperature drop to be higher. Increase the efficiency is up to 70%. In this case, it is important to calculate the power consumption of the device.

This can be done based on the capacity of the equipment. The refrigerator on liquid freon in this case is ideal. Directly the Peltier element is installed near the evaporator, which is located next to the motor. To install it you will need a standard set of tools, as well as gaskets. They are necessary in order to protect the model from the start relay. Thus, cooling the bottom of the device will occur much faster.

To achieve a temperature difference (the Peltier effect) with their own hands, conductors may need at least 16 pieces. The main thing at the same time is to securely isolate the wires that will be connected to the compressor. In order to do everything right, you must first disconnect the dehydrator of the refrigerator. Only after this it is possible to connect all the contacts. After the installation is completed, the voltage limit must be checked with a tester. If the work of the element is broken first of all, the thermostat suffers. In some cases, a short circuit occurs .

Model for the refrigerator 15 V

The Peltier refrigerator is made by hand with low throughput. The modules are attached mainly near the radiators. In order to reliably fix them, experts use corners. The element must not be leaning against the filter, and this should be taken into account.

To complete the thermoelectric Peltier module with your own hands, the bottom plate is mainly selected from stainless steel. Conductors, as a rule, are applied with the marking "ПР20". Load they are able to withstand a maximum of 3 A. Maximum deviation of temperature can reach 10 degrees. In this case, the efficiency can be 75%.

Peltier elements in refrigerators 24 V

Using the Peltier element, the refrigerator can only be made from conductors with good sealing. In this case, they must be stacked in three rows for cooling. The operating current in the system must be maintained at 4A. You can check it using a conventional tester.

If you use ceramic plates for the element, then the maximum deviation of the temperature can be achieved at 15 degrees. Wires to the condenser are installed only after the gasket has been laid. You can attach it to the device wall in various ways. The main thing in this situation is not to use glue, which is sensitive to temperatures over 30 degrees.

Peltier element for automotive cooler

To make a high-quality auto-refrigerator with their own hands, Peltier (module) is selected with a plate, the thickness of which is not more than 1.1 mm. Wires are best used non-modular type. Also, copper conductors are required for operation. Their throughput should be at least 4A.

Thus, the maximum temperature deviation will reach 10 degrees, this is considered normal. Conductors are most often used with the label "PR20". They have recently shown themselves to be more stable. They are also suitable for various contacts. A soldering iron is used to connect the device to the condenser. A qualitative installation is only possible on the relay relay block. The differences in this case will be minimal.

How to make an element for a cooler of drinking water?

The Peltier module (element) with its own hands is made for a cooler quite simply. Plates for it is important to select only ceramic ones. Conductors in the device use at least 12. Thus, the resistance will be maintained high. The connection of the elements is carried out by soldering. There must be two wires for connection to the device. The element is attached at the bottom of the cooler. In this case, it can come into contact with the cover of the device. In order to eliminate the occurrence of short circuits, all wiring is important to fix on the grille or the casing.

Conditioners

Module "Peltier" (element) with their own hands is made for air conditioning only with conductors of class "PR12". They are chosen for this business mainly because they are good at low temperatures. The maximum model is capable of producing a voltage of 23 V. The resistance index will be at the level of 3 ohms. The temperature drop reaches a maximum of 10 degrees, and the efficiency is 65 percent. You can stack conductors between sheets only in one row.

Manufacture of generators

To make a generator using the Peltier module (element), you can do it yourself. The performance of the device will rise by as much as 10%. This is due to a greater cooling of the motor. The maximum load of the device is maintained at 30 A. Due to the large number of conductors, the resistance can be 4 ohms. The temperature deviation in the system is approximately 13 degrees. The module is attached directly to the rotor. To do this, first disconnect the central shaft. In many cases, the stator does not interfere. To ensure that the rotor winding does not heat up from the inductor, ceramic plates are used.

Cooling the video card on a computer

To cool the video card, prepare at least 14 conductors. It is best to choose copper models. The coefficient of heat conduction in them is quite high. To connect the device to the board, non-modular type wires are used. Mount the model near the cooler of the video card. To fix it, usually use small metal corners.

To fix them you can use ordinary gadgets. The appearance of excessive noise during operation indicates that the device is not working properly. In this case, it is necessary to check the integrity of the wiring. Also need to inspect the conductors.

Peltier element for air conditioning

To qualitatively make the Peltier element with your own hands for the air conditioner, the plates use double ones. The minimum thickness should be at least 1 mm. In this case, one can hope for a temperature deviation of 15 degrees. The performance of air conditioners after equipping the modules increases by an average of 20%. Much in this situation depends on the temperature of the environment. The stability of the mains voltage should also be considered. For small interference, the device is exposed to a load of approximately 4 A.

When soldering conductors, they should not be placed too close to each other. To properly complete the Peltier modules with your own hands, the input and output contacts must be installed only on one of the two plates. In this case, the device will be more compact. A gross error in this situation will be to connect the module directly to the unit. This will lead to the inevitable breakdown of the element.

Installing the module on a capacitor

To install the Peltier module with your own hands, it is important to estimate the capacitor power. If it does not exceed 20 V, the element should be mounted with conductors marked with "PR30" or "PR26". To fix the Peltier module (element) with your hands on the condenser, use small metal corners.

It is best to install them four on each side. In performance, the capacitor, ultimately, is able to add plus 10%. If we talk about heat loss, then they will be insignificant. The coefficient of efficiency of the device is on average 80%. For high-voltage capacitors, the modules are not calculated. In this case, even a large number of conductors will not help.