Multilayer PCB - Fridge PCB

Fridge pcb is a printed circuit board, is the refrigerator's ‘brain’, refers to the main control centre to control the operation of the refrigerator. Generally includes temperature control, defrost control, power control and sensor control and other functions. Its role is to link the refrigerator sensors and other electrical components together to control the switch and operation of electrical appliances.

Various sensors are also integrated into the fridge pcb to provide timely feedback on the temperature and humidity inside the refrigerator for automatic control.The fridge pcb can interact with the user and control various functions such as thermostat, cooling and defrosting by means of alarm lights, buzzers and displays.

The fridge pcb uses digital circuitry in which a microcomputer is embedded to enable automatic temperature adjustment and time control functions based on feedback from temperature sensors. Temperature probes are generally used,which are fixed on components such as the freezer and refrigerator, and can monitor the temperature in real time and transmit this data to the circuit board for processing, regulating the overall temperature of the refrigerator to ensure that the indoor temperature is stable and appropriate.

Types of fridge pcb:

Ordinary fridge pcb:these circuit boards are usually used in ordinary household refrigerators, and their main function is to control the temperature and pressure of the refrigeration system and other parameters.

Inverter fridge pcb:with the development of science and technology,some manufacturers began to produce inverter fridge pcb.Its main role is to control the speed of the frequency converter to regulate the cooling effect of the refrigerator.

Intelligent fridge pcb:some high-end refrigerators use intelligent fridge pcb,which can sense the temperature of the refrigerator and freezer through the sensing device,and automatically adjust the operation of the refrigeration system according to the different conditions,so as to improve the refrigeration efficiency of the refrigerator and energy-saving effect.

Car fridge pcb is one of the core parts of the car refrigerator, its specification size is usually about 100mm x 100mm, some super-large car fridge pcbs will be a little bigger, but not more than 200mm x 200mm.Meanwhile, the thickness of the car Fridge pcbs will vary according to the manufacturer and the use of the requirements of different.

Commonly used materials for fridge pcbs

FR-4 glass fibre board

FR-4 glass fibre board is a commonly used electronic circuit board material, with good insulation, temperature resistance, strong resistance to hardness and other characteristics, is widely used in electronic equipment, communication equipment and industrial control equipment. In the manufacture of Fridge pcbs, FR-4 glass fibre board is also one of the commonly used materials. Due to its stable performance and reasonable price, it excels in refrigerator performance, power consumption and safety. Moreover, the addition of features such as electric shock alarm and over-current protection for FR-4 glass fibre boards makes Fridge pcbs safer and more reliable.

Aluminium Substrate

Aluminium substrate is a specially treated aluminium plate covered with an insulating layer and a metal layer. Its features of good thermal conductivity, high temperature resistance, structural stability and high mechanical strength make it another important material for Fridge pcbs. In high-performance, high-power refrigerators, aluminium substrates can effectively dissipate heat and are free from the interference of background noise, so they are widely used in the manufacture of Fridge pcbs.

Ceramic Substrates

Ceramic substrate is an electronic circuit board material made of high purity aluminium oxide, which has the advantages of high insulation,high temperature stability and chemical stability. The performance of ceramic substrate is especially outstanding in high power and high frequency environment. In the manufacture of Fridge pcbs,ceramic substrates of high purity, high thermal conductivity,lower coefficient of thermal expansion and other advantages,so that it can be widely used in the manufacture of high-performance,high-quality Fridge pcbs.

The main function of the fridge pcb is to control the temperature of the refrigerator.When the internal temperature of the refrigerator exceeds a certain range,the electric ice circuit board will automatically start the compressor to compress the refrigerant and send it to the condenser to dissipate the heat,so that the internal temperature of the refrigerator is cooled down. When the temperature drops to the specified range, the electric ice circuit board will stop the compressor, so as to achieve the purpose of temperature control.

In addition, the fridge pcb has other protection functions. For example, when the compressor works in the process of abnormal conditions, the electric ice circuit board will immediately stop the compressor to prevent damage to electrical components.