In smart washing machines, smart washing machine main and secondary boards are core control components. The layout of their components has a vital impact on the heat dissipation efficiency and is directly related to the performance and stability of the washing machine.
First, the distribution density of components is one of the key factors. If the components on the smart washing machine main and secondary boards are arranged too densely, heat is easy to accumulate locally and difficult to dissipate quickly. For example, high-power driver chips, power modules, etc. will generate more heat when working. When they are closely adjacent, the heat will be superimposed on each other to form a high-temperature area. This may not only cause these components themselves to degrade in performance or even damage due to overheating, but also affect other temperature-sensitive components around them, such as microcontrollers, and thus affect the working stability of the entire smart washing machine main and secondary boards. On the contrary, a reasonable decentralized layout can provide more heat dissipation paths for heat, reduce the risk of local heat accumulation, and promote overall heat dissipation.
Secondly, the arrangement direction of components should not be ignored. Layout along the direction of air flow is conducive to natural convection of heat. For example, arranging components with high heat output along the ventilation channels or heat sink fins on the smart washing machine main and secondary boards can quickly take away the heat with the help of air flow. If the arrangement direction is disorderly, it will hinder the smooth circulation of air, causing heat to be retained in the board and reducing the heat dissipation efficiency. At the same time, considering the principle that hot air rises, placing the heat-generating components at a lower position will also help to form a good heat convection cycle and further improve the heat dissipation effect.
Furthermore, the relative position relationship with the heat sink is extremely important. Heat sinks, thermal conductive silicone and other heat sinks on the smart washing machine main and secondary boards need to be closely matched with components with high heat output. If the heat-generating components fail to effectively contact the heat sink or the distance is too far during layout, heat conduction will be hindered. For example, for key heat-generating components such as CPUs, it should be ensured that they have a good fit with the heat sink and a short heat conduction path, and the heat is efficiently transferred to the heat sink through materials such as thermal conductive silicone, and then the heat sink dissipates the heat to the surrounding environment. Otherwise, the heat cannot be transferred to the heat dissipation device in time, which will cause the temperature of the components to be too high, affecting their service life and the reliability of the entire smart washing machine main and secondary boards.
Finally, when designing the layout of components of the smart washing machine main and secondary boards, the overall heat dissipation environment inside the washing machine must be considered comprehensively. For example, to avoid placing the smart washing machine main and secondary boards in a closed and poorly ventilated area inside the washing machine, the air duct design and fan layout of the washing machine should be combined to enable the smart washing machine main and secondary boards to fully utilize the heat dissipation resources of the entire machine. By rationally planning the layout of components, optimizing the coordinated work with the heat dissipation device, and adapting to the heat dissipation conditions inside the washing machine, the heat dissipation efficiency of the smart washing machine main and secondary boards can be significantly improved, ensuring that the washing machine can operate stably under long-term and high-intensity working conditions, and extending the service life of the smart washing machine main and secondary boards and the entire washing machine.
