Temperature control system for communication power supply

Abstract

The invention discloses a temperature control system for a communication power supply. The system comprises a control circuit, a temperature detection circuit and a heating performing circuit, whereinthe temperature detecting circuit and the heating performing circuit are connected to the control circuit; the temperature detecting circuit is used for detecting temperatures at a plurality of points on a cell. The system further comprises a state detecting circuit for detecting the charge and discharge state of a lithium-ion battery cell. A target temperature is set; if the current temperatureis not lower than the preset target temperature, the heating performing circuit does not work; if not so, the heating performing circuit acts. With the adoption of the system, the cell can be safely charged.

Description

technical field [0001] The invention belongs to the field of communication power supply and relates to a temperature control system for communication power supply. Background technique [0002] In the era of network communication, with the rapid development of the communication industry, in the system design of the communication base station power supply, the backup power supply is a very core component, and many batteries are widely used in the communication base station. With the increase in the deployment scale and flexibility of communication base stations, traditional lead-acid batteries have shortcomings such as short discharge cycle life, fear of dehydration, poor high-temperature characteristics, and high maintenance costs. Not only that, lead-acid batteries contain heavy metals such as acid and lead. Pollution is long-term destructive to the human body and the natural environment, and it is gradually difficult to meet the requirements of safety, reliability, and env...

AI Technical Summary

Problems solved by technology

Although the ternary lithium battery has excellent performance at high temperature, it is slightly inferior at low temperature. It can be discharged at a low temperature of -40°C, but due to the temperature characteristics of lithium-ion batteries, the battery pack cannot perform real-time charging under low temperature conditions. It is easy to cause battery damage, performance degradation and other disadvantages

If the communication power supply system fails, the quality of power supply will be reduced or the power supply will be interrupted, and the communication system will not be able to operate normally, which will inevitably lead to failure of the communication system, which will cause huge economic losses.

[0004] For example, the patent "A Ultra-low Temperature Lithium Battery Pack for Electric Vehicles" (Application No. 201510394648.6) provides a method for charging and operating lithium ions at low temperatures, but its control system is too cumbersome, and a fan and other devices must be installed in the battery module. Increased the size of the battery module, which is very unfavorable for integration and miniaturization

Another example is "Communication Power Supply Cabinet and Method for Controlling the Temperature of Communication Power Supply Cabinet" (Application No. 201310445174.4). The patent only mentions how to facilitate the ventilation components to transfer air heat, but does not solve how to use the communication power supply cabinet temperature method to further improve the low temperature. The temperature of the communication power supply cannot effectively solve the charging problem at low temperature

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