In modern kitchens and outdoor activities, battery-rechargeable blenders, as a portable and efficient device, have become the first choice of many users. However, in actual use, the device overheats frequently, which not only affects the normal operation of the blender, but also may cause a series of safety hazards and performance degradation problems.
The impact of overheating on the blender is mainly reflected in many aspects. First, the performance of the device may temporarily decrease, resulting in reduced blending efficiency. When the motor and battery are running at high speed or in continuous use for a long time, the temperature will gradually rise, exceeding the safe operating range of their design. At this time, the device will automatically start the overheating protection mechanism to prevent damage. Although this mechanism can effectively avoid serious failures, frequent shutdowns will significantly affect the user experience. The inconvenience caused by shutdowns is particularly obvious in situations where food ingredients need to be processed quickly.
Secondly, overheating causes direct damage to the internal structure of the motor and battery. When the motor operates under high temperature conditions, the insulation material of the winding may deteriorate due to the increase in temperature, resulting in reduced insulation performance, increased risk of short circuit, and even possible motor damage. When the battery is overheated, the stability of the electrolyte is affected, which can easily lead to gas generation or expansion. In severe cases, bulging or leakage may occur, increasing the risk of explosion or fire. Lithium-ion batteries, in particular, are prone to thermal runaway under overheating conditions, generating a lot of heat and even causing fires, posing a serious threat to user safety. In addition, the electronic components inside the device may also fail in a high-temperature environment, causing a short circuit or failure of the control system, which may cause the device to lose control or be completely damaged.
Damage to mechanical components is also an important problem caused by overheating. When the blade rotates at high speed and at high temperature, the thermal expansion of the material may cause the blade to not fit well with the base, thereby affecting the mixing efficiency, and may even cause the blade to deform or break. In a high-temperature environment, the passivation and mechanical wear of the blade are aggravated, reducing its sharpness and durability, further affecting the uniformity and effect of mixing. In addition, long-term overheating may also cause deformation or cracks in the device casing, affecting the stability and aesthetics of the overall structure. These mechanical damages not only shorten the service life of the device, but also increase the cost of subsequent repairs and replacements.
The service life of the device will also be significantly shortened under the influence of overheating. Continuous high-temperature operation accelerates the aging process of motor windings, insulation materials, and batteries, resulting in a reduction in the overall life of the device. After repeated overheating and cooling cycles, the battery capacity gradually decreases, the battery life becomes shorter, and it may even be impossible to charge or discharge normally. Deterioration of the insulation layer of the motor winding will lead to insulation failure, increase the risk of short circuits, and ultimately may cause complete failure of the device. The thermal expansion and contraction of mechanical parts in high temperature environments will also cause structural stress, which may cause cracks, deformation, or even breakage, further affecting the normal use of the equipment.