Solar tire pressure monitoring plays an important role in vehicle driving safety, but the long-term vibration and high temperature environment of tires pose many challenges to their structural stability. A deep understanding of these challenges is crucial to optimizing equipment design and improving its reliability.
During vehicle driving, tires will continue to be subjected to various vibrations, which is a severe test for the connecting parts of solar tire pressure monitoring. The equipment is usually fixed to the tire by nuts, bolts or glue, and long-term vibration may gradually loosen these connecting parts. Once the connection is loose, the equipment may be displaced or even fall off, which will not only fail to accurately monitor tire pressure, but also pose a threat to vehicle driving safety. For example, the nuts may gradually loosen due to vibration, resulting in a loose connection between the sensor and the tire, affecting the accuracy of data collection.
In addition to the connecting parts, the electronic components inside the device will also be affected by vibration. Under the action of long-term vibration, the electronic components on the circuit board, such as chips, capacitors, resistors, etc., may have problems such as loose pins and desoldering. These problems will cause the circuit connection to be interrupted or unstable, causing the device to malfunction. For example, desoldering of chip pins may cause the device to fail to work properly and fail to transmit the monitored tire pressure data to the receiving end. In addition, vibrations may also cause the battery and circuit connection inside the device to be unstable, affecting the power supply of the device and thus its normal operation.
Tires generate a lot of heat during driving, especially when driving at high speed or for a long time, the temperature inside the tire will rise significantly. High temperature will have an adverse effect on the material properties of solar tire pressure monitoring. On the one hand, the device shell is usually made of materials such as plastic. High temperature may cause the plastic to deform and age, reducing its mechanical strength and sealing. On the other hand, the battery, solar panel, etc. inside the device are also sensitive to temperature. High temperature will accelerate the aging of the battery, reduce its capacity and service life, and may also affect the photoelectric conversion efficiency of the solar panel, reducing the charging capacity of the device.
Different materials have different thermal expansion coefficients at high temperatures, which is also a challenge faced by solar tire pressure monitoring. When various components and materials inside the device expand due to heat, they may produce mutual compression or stretching stress due to different expansion degrees. If this stress exceeds the material's tolerance limit, it will cause component damage or structural deformation. For example, the difference in thermal expansion between the circuit board and the shell may cause the circuit board to be squeezed, resulting in a short circuit or open circuit on the circuit board.
Vibration and high temperature often exist at the same time, and their synergistic effect will have a more complex and serious impact on the structural stability of solar tire pressure monitoring. High temperature will soften the material and reduce its vibration resistance, while vibration will accelerate the fatigue wear of the material at high temperature. This synergistic effect may cause the connecting parts of the equipment to loosen faster, the internal components to be more easily damaged, and the structural deformation to be more serious, thereby greatly shortening the service life of the equipment and increasing the probability of equipment failure.
The long-term vibration and high temperature tire environment brings many challenges to the structural stability of solar tire pressure monitoring, including loose connection parts, damage to internal components, changes in material properties, thermal expansion problems, and the synergistic effect of vibration and high temperature. In order to ensure that the equipment can work stably and reliably in such harsh environments, effective measures need to be taken in equipment design, material selection, manufacturing process, etc. to improve the equipment's vibration resistance and high temperature resistance, ensure its structural stability, and thus ensure vehicle driving safety.
