As we all know, in relatively closed equipment such as wine cabinets and cabinets, the major components in the equipment will run for a long time during work, so a large number of heat sources will be generated. If there is no timely ventilation and heat dissipation, the equipment will overheat and burn, causing some wires Short circuit, so most of them will use a cooling fan to help the device dissipate heat.
Case Details
Let's analyze the noise caused by the cooling fan of the wine cabinet and how to solve it?
1. Under normal circumstances, it is caused by the lack of lubrication of the cooling fan bearing. Timely lubrication of the fan bearing can solve the problem of fan rotation noise.
2. Due to the imbalance of the fan blades, the blades are loose on the rotating shaft or the bearing clearance is too large. If the individual fan blades work for a long time and are dirty, they should be cleaned in time. If the fan blades are defective, asymmetrical or the fan bearing clearance is too large, a new power supply fan needs to be replaced to solve the noise problem.
3. Noise caused by cyclone obstacles encountered in the operation of the cooling fan, especially around the key air inlet and air outlet, avoid obstacles.
4. When choosing a cooling fan, consider heat exhaust, try to choose a cooling fan with a large specification of low speed ratio. Compared with small high-speed rotating cooling fans, general-purpose low-speed cooling fans with large specifications have lower noise when conveying the same exhaust air volume.
5. The working voltage of the cooling fan in the cabinet is the key to determining the noise of the electric fan. The higher the operating voltage, the greater the vibration, and therefore the noise.
6. The use of cooling fan bearings also determines the fan noise to a certain extent. If inferior bearings are used, after a period of use, noise will also be generated when the fan is running due to wear of the bearings. The higher the accuracy of the bearing, the smaller the friction with the shaft core, the more accurate the size matching, and the lower the noise of course, which is greatly related to the material of the bearing.
7. Therefore, if the budget is sufficient when choosing the cooling fan of the wine cabinet, then you must choose a better bearing, so that the service life of the fan will be longer, and the noise of the fan in subsequent use will be lower.
