A control system for a sodium ion starting battery with rapid energy replenishment

Abstract

The invention relates to the field of storage batteries, and discloses a control system for a sodium ion starting battery with rapid energy replenishment, comprising a starting battery body, a preheating module, a temperature monitoring module connected to the preheating module signal, and a current monitoring module. When the temperature monitored by the temperature monitoring module is the temperature of stage one, the invention can increase the voltage through a step-up transformer, thereby ensuring that the battery can still provide sufficient current to start the device at a low temperature, thereby enhancing the low-temperature starting performance of the battery. By introducing an automatic transformer, the output voltage can be dynamically adjusted according to the actual needs of the power consumption end, thereby ensuring the normal operation of the device and avoiding unnecessary energy waste. The addition of the automatic transformer makes the circuit more flexible, and the voltage can be fine-tuned according to actual conditions, thereby improving the adaptability and stability of the system.

Description

Technical Field

[0001] The invention relates to the field of storage batteries, and in particular to a control system for a sodium ion starting battery with rapid energy replenishment. Background Art

[0002] The traditional lead-acid starting battery has poor starting performance in low temperature environment and has environmental pollution problems. In recent years, sodium-ion batteries have gradually become a strong candidate to replace lead-acid batteries due to their abundant resources, low cost and environmental friendliness. However, sodium-ion batteries face problems such as insufficient rapid charging and discharging capabilities and poor temperature adaptability during the starting process. Especially under extreme temperature conditions, their performance will be significantly reduced. Since there will be a large deviation between the current pre-output power and the actual output power of the battery at extreme temperatures, the starting battery body in the prior art only controls the discharge by increasing the output power at the same power or gradually, and cannot be adjusted according to the actual power required by the battery. Too small actual discharge power cannot effectively start the device, and too large actual discharge power will cause the temperature of the device and the starting battery body to rise rapidly and short-circuit, resulting in hidden dangers of electricity use. Therefore, it is particularly important to develop a system that can effectively control the starting process of the sodium-ion starting battery body. Summary of the invention

[0003] The present invention provides a control system for a sodium ion starting battery with rapid energy replenishment, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A control system for a sodium ion starting battery with rapid energy replenishment, comprising:

[0006] Starting battery body;

[0007] A preheating module is arranged around the starting battery body;

[0008] A temperature monitoring module is connected to the preheating module signal and is used to monitor the temperature of the preheating module;

[0009] The current monitoring module is connected to the preheating module signal, and is used to control the power supply of the starting battery body, and monitor the remaining power of the starting battery body and the real-time output current of the starting battery body;

[0010] When the starting battery body is electrically connected to the power end, it continuously maintains current output for the preheating module, the temperature monitoring module, and the current monitoring module, and is characterized by:

[0011] The temperature monitoring module divides the temperature of the monitored preheating module into stages one, two and three;

[0012] The temperature in stage 1 is -40°~0°;

[0013] The temperature in stage 2 is 1°~25°;

[0014] Stage three is the temperature of 26°~60°;

[0015] When the temperature monitored by the temperature monitoring module is the temperature of stage 1, the battery body is started to conduct current with the power consumption end through the step-up transformer;

[0016] When the temperature monitored by the temperature monitoring module is the temperature of stage 2, the battery body is started to conduct current with the power consumption end through the step-up transformer and the automatic transformer in sequence;

[0017] When the temperature monitored by the temperature monitoring module is the temperature of stage three, the battery body is started to conduct current with the power consumption end through the automatic transformer;

[0018] The automatic transformer forms a signal connection with the current monitoring module. When the current detected by the current monitoring module gradually increases, the voltage at the automatic transformer gradually decreases.

[0019] A preferred technical solution, the current monitoring module divides the total power of the starter battery body into a main power segment and a secondary power segment by percentage, the power of the main power segment is used to supply power to the power-consuming end, and the power of the secondary power segment is used to supply power to the preheating module, the temperature monitoring module and the current monitoring module. The main power segment accounts for 90% of the total power, and the secondary power segment accounts for 10% of the total power. When the battery is in use, the main power segment is given priority to supply power, and when the power share of the main power segment drops to 0%, the battery does not supply power to the power-consuming end;

[0020] The starting battery body first supplies power to the preheating module, temperature monitoring module and current monitoring module;

[0021] The control system also includes a step-up transformer and an automatic transformer connected to the current monitoring module signal. The step-up transformer and the automatic transformer form a current series connection, and the starting battery body forms a current parallel connection with the step-up transformer and the automatic transformer respectively. The starting battery body can allow the current to flow through the automatic transformer and the current monitoring module in sequence to the power consumption end, and can also allow the current to flow through the step-up transformer, the automatic transformer and the current monitoring module in sequence to the power consumption end.

[0022] A preferred technical solution, wherein when the temperature monitored by the temperature monitoring module is the temperature of stage one, the battery body is started to conduct current with the power consumption end through the step-up transformer, the current voltage of the current passing through the step-up transformer is increased, and the current output to the preheating module is increased accordingly, so as to increase the temperature generated by the preheating module by increasing the current output;

[0023] When the temperature monitored by the temperature monitoring module is the temperature of the second stage, the battery body is started to conduct current with the power consumption end through the step-up transformer and the automatic transformer in sequence, firstly, the current output to the preheating module is increased through the step-up transformer to increase the temperature generated by the preheating module, and then the current voltage is reduced through the automatic transformer to reduce the current output power of the power consumption end by reducing the current voltage;

[0024] Among them, when the temperature monitored by the temperature monitoring module is the temperature of stage three, the battery body is started to form current conduction with the power consumption end through the automatic transformer, and the current voltage of the current passing through is changed by the automatic transformer to keep the current output at the power consumption end stable.

[0025] In a preferred technical solution, the current monitoring module divides the current output value of the starter battery body into a current pre-output value and a current actual output value;

[0026] When the temperature of the preheating module monitored by the temperature monitoring module is the highest threshold temperature of stage three, the ratio of the current pre-output value to the current actual output value is 1:1;

[0027] When the temperature of the preheating module monitored by the temperature monitoring module is the lowest threshold temperature of stage 1, the ratio of the current pre-output value to the current actual output value is 3:1;

[0028] As the temperature of the preheating module rises from the lowest threshold temperature in stage one to the highest threshold temperature in stage three, the ratio between the current pre-output value and the current actual output value gradually transitions from 3:1 to 1:1.

[0029] A preferred technical solution, the temperature monitoring module includes a plurality of temperature sensors arranged around the starter battery body, and the preheating module includes heating wires respectively arranged around each temperature sensor, each heating wire is respectively electrically connected to a corresponding temperature sensor, and the current of the starter battery body must first pass through the temperature sensor before being transmitted to the heating wire to form electrical heating;

[0030] The starting battery body forms a parallel circuit with all temperature sensors through the temperature monitoring module. At least one temperature sensor and a heating wire are arranged at the positive and negative electrodes of the starting battery body. When the starting battery body is connected to the power end, the starting electric body preferentially conducts the temperature sensor and the heating wire at the positive and negative electrode interfaces of the starting battery body through the temperature monitoring module. The temperature at the positive and negative electrode interfaces of the starting battery body is increased by heating the heating wire, thereby increasing the chemical reaction rate around the positive and negative electrode interfaces of the starting battery body.

[0031] When the power consumption end is supplied by the starting battery body, the starting battery body conducts current to all temperature sensors and corresponding heating wires through the temperature monitoring module, and uses all the heating wires to heat the starting battery body.

[0032] Compared with the prior art, this technical solution has the following advantages:

[0033] When the temperature monitored by the temperature monitoring module is the temperature of stage one, the battery performance will usually drop significantly in a low temperature environment. The present invention can increase the voltage through a step-up transformer to ensure that the battery can still provide sufficient current to start the device at low temperatures, thereby enhancing the low-temperature starting performance of the battery. When the temperature monitored by the temperature monitoring module is the temperature of stage two, the starting battery body is sequentially connected to the power consumption end through the step-up transformer and the automatic transformer. In a relatively mild temperature range, the battery performance is relatively stable. At this time, by introducing an automatic transformer, the output voltage can be dynamically adjusted according to the actual needs of the power consumption end, which not only ensures the normal operation of the equipment, but also avoids unnecessary energy waste. The addition of the automatic transformer makes the circuit more flexible, and the voltage can be fine-tuned according to actual conditions, improving the adaptability and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is an overall schematic diagram of the present invention.

[0036] In the figure: a starting battery body 101 , a temperature monitoring module 102 , a preheating module 103 , a step-up transformer 104 , an automatic transformer 105 , and a current monitoring module 106 . DETAILED DESCRIPTION

[0037] like Figure 1 As shown, the present invention proposes a control system for a sodium ion starting battery with rapid energy replenishment, including

[0038] The starting battery body 101 is used to supply power to the power consumption end;

[0039] The preheating module 103 is disposed around the starting battery body 101 and is used to heat the starting battery body 101;

[0040] The temperature monitoring module 102 is connected to the preheating module 103 by signal, and is used to monitor the temperature of the preheating module 103;

[0041] The current monitoring module 106 is connected to the preheating module 103 by signal, and is used to control the power supply of the starting battery body 101, and monitor the remaining power of the starting battery body 101 and the real-time output current of the starting battery body 101;

[0042] When the starter battery body 101 is electrically connected to the power end, it continuously maintains current output for the preheating module 103, the temperature monitoring module 102, and the current monitoring module 106;

[0043] The current monitoring module 106 divides the total power of the starting battery body 101 into a main power segment and a secondary power segment by percentage. The power of the main power segment is used to supply power to the power-consuming end, and the power of the secondary power segment is used to supply power to the preheating module 103, the temperature monitoring module 102 and the current monitoring module 106. The main power segment accounts for 90% of the total power, and the secondary power segment accounts for 10% of the total power. When the starting battery body 101 is in use, the proportion of the main power segment decreases first, and the proportion of the secondary power segment does not decrease. When the proportion of the main power segment decreases to 0%, the proportion of the secondary power segment is further reduced to 0%;

[0044] The starting battery body 101 preferentially supplies power to the preheating module 103 , the temperature monitoring module 102 , and the current monitoring module 106 ;

[0045] The control system further includes a boost transformer 104 and an automatic transformer 105 connected to the current monitoring module 106 signal, the boost transformer 104 and the automatic transformer 105 form a current series connection, and the starting battery body 101 forms a current parallel connection with the boost transformer 104 and the automatic transformer 105 respectively, and the starting battery body 101 can allow the current to flow through the automatic transformer 105 and the current monitoring module 106 in sequence to the power consumption end, and can also allow the current to flow through the boost transformer 104, the automatic transformer 105 and the current monitoring module 106 in sequence to the power consumption end;

[0046] The system intelligently divides the total power of the starting battery body 101 into a main power segment and a secondary power segment through the current monitoring module 106, thereby realizing refined power management. The main power segment accounts for 90% of the total power and is specifically used to supply the power consumption end, ensuring that the main functions of the equipment are adequately supported by power. The secondary power segment accounts for 10% of the total power and is specifically used to supply the preheating module 103, the temperature monitoring module 102 and the current monitoring module 106, ensuring the stable operation of the battery management system itself. During use, the proportion of the main power segment decreases first, which means that the main functions of the equipment are guaranteed first until the main power segment is exhausted. When the proportion of the main power segment drops to 0%, the proportion of the secondary power segment is reduced to 0%. This strategy ensures that the battery management system can still maintain basic functions at the end of the battery life, such as temperature monitoring and current control, thereby improving the safety and reliability of the system. This power reduction strategy also avoids the failure of the battery management system due to premature exhaustion of the secondary power segment, which may cause equipment failure or safety accidents.

[0047] A preferred technical solution, the temperature monitoring module 102 divides the temperature of the monitored preheating module 103 into stages one, two and three;

[0048] The temperature in stage 1 is -40°~0°;

[0049] The temperature in stage 2 is 1°~25°;

[0050] Stage three is the temperature of 26°~60°;

[0051] When the temperature monitored by the temperature monitoring module 102 is the temperature of stage one, the starting battery body 101 forms current conduction with the power consumption end through the step-up transformer 104. In a low temperature environment, the battery performance usually decreases significantly. By increasing the voltage through the step-up transformer 104, it can be ensured that the battery can still provide sufficient current to start the device at low temperatures, thereby enhancing the low temperature starting performance of the battery.

[0052] When the temperature monitored by the temperature monitoring module 102 is the temperature of stage 2, the battery body 101 is started to conduct current with the power consumption end through the step-up transformer 104 and the automatic transformer 105 in turn. In a relatively mild temperature range, the battery performance is relatively stable. At this time, by introducing the automatic transformer 105, the output voltage can be dynamically adjusted according to the actual needs of the power consumption end, which not only ensures the normal operation of the equipment, but also avoids unnecessary energy waste. The addition of the automatic transformer 105 makes the circuit more flexible, and the voltage can be fine-tuned according to the actual situation, which improves the adaptability and stability of the system;

[0053] When the temperature monitored by the temperature monitoring module 102 is the temperature of stage three, the battery body 101 is started to form current conduction with the power consumption end through the automatic transformer 105. In a high temperature environment, the battery is prone to overheating, which in turn affects its performance and life. At this time, by removing the step-up transformer 104, the heat generation in the circuit is reduced, which helps to reduce the temperature of the battery and prevent overheating. At high temperatures, the internal resistance of the battery is usually reduced, so no additional step-up is required to meet the needs of the power consumption end. Only the automatic transformer 105 can be used to adjust the voltage according to actual conditions, thereby improving energy efficiency. At high temperatures, excessive voltage and current may cause damage to circuits and equipment. By adjusting the voltage through the automatic transformer 105, the circuits and equipment can be protected from damage caused by overheating and overcurrent.

[0054] The automatic transformer 105 forms a signal connection with the current monitoring module 106 . When the current detected by the current monitoring module 106 gradually increases, the voltage at the automatic transformer 105 gradually decreases.

[0055] When the temperature monitored by the temperature monitoring module 102 is the temperature of stage 1, the battery body 101 is started to conduct current with the power end through the step-up transformer 104, the current voltage of the current passing through the step-up transformer 104 is increased, and the current output to the preheating module 103 is increased accordingly, so as to increase the temperature generated by the preheating module 103 by increasing the current output;

[0056] When the temperature monitored by the temperature monitoring module 102 is the temperature of the second stage, the battery body 101 is started to form a current conduction with the power consumption end through the step-up transformer 104 and the automatic transformer 105 in sequence. First, the step-up transformer 104 is used to increase the current output to the preheating module 103, thereby increasing the temperature generated by the preheating module 103, and then the automatic transformer 105 is used to reduce the current voltage, thereby reducing the current output power of the power consumption end by reducing the current voltage.

[0057] When the temperature monitored by the temperature monitoring module 102 is the temperature of stage three, the battery body 101 is started to conduct current with the power consumption end through the automatic transformer 105, and the current voltage of the current passing through the automatic transformer 105 is changed to keep the current output at the power consumption end stable.

[0058] Furthermore, the current monitoring module 106 divides the current output value of the starter battery body 101 into a current pre-output value and a current actual output value;

[0059] When the temperature of the preheating module 103 monitored by the temperature monitoring module 102 is the highest threshold temperature of stage three, the ratio of the current pre-output value to the current actual output value is 1:1;

[0060] When the temperature of the preheating module 103 monitored by the temperature monitoring module 102 is the lowest threshold temperature of the first stage, the ratio of the current pre-output value to the current actual output value is 3:1;

[0061] When the temperature of the preheating module 103 rises from the lowest threshold temperature of stage 1 to the highest threshold temperature of stage 3, the ratio between the current pre-output value and the current actual output value gradually transitions from 3:1 to 1:1.

[0062] By dynamically adjusting the ratio of the current pre-output value to the actual output value, the system can better adapt to the changes in battery performance at different temperatures. At low temperatures, by reducing the ratio of the actual output value to the pre-output value, the instantaneous load on the battery can be reduced, protecting the battery from performance degradation at low temperatures. As the temperature rises, the ratio difference is gradually reduced, ensuring that the battery can fully exert its performance at high temperatures and provide stable current output.

[0063] At low temperatures, the internal resistance of the battery increases and the energy conversion efficiency decreases. By reducing the actual output value, energy waste can be reduced and energy utilization efficiency in low temperature environments can be improved. As the temperature rises, the battery performance improves. At this time, gradually increasing the actual output value can fully utilize the battery energy and meet the device's demand for current.

[0064] At low temperatures, excessive current output may damage the battery and even cause safety issues. By reducing the actual output value, the battery can be protected from the impact of excessive current and the battery life can be extended. At the same time, the smooth transition process also ensures the stable operation of the device at different temperatures and avoids equipment failure caused by sudden current changes.

[0065] The design of dynamically adjusting the current output value ratio enables the system to work more stably when facing temperature changes. Whether it is a low or high temperature environment, the system can maintain the best working state by adjusting the current output value. This smooth transition process also reduces the fluctuations and instability factors of the system caused by temperature changes, and improves the reliability and stability of the overall system.

[0066] Furthermore, the temperature monitoring module 102 includes a plurality of temperature sensors disposed around the starter battery body 101, and the preheating module 103 includes heating wires disposed around each temperature sensor, each heating wire is electrically connected to a corresponding temperature sensor, and the current of the starter battery body 101 must first pass through the temperature sensor before being transmitted to the heating wire to form electrical heating;

[0067] The starting battery body 101 forms a parallel circuit with all temperature sensors through the temperature monitoring module 102. At least one temperature sensor and a heating wire are arranged at the positive and negative electrodes of the starting battery body 101. When the starting battery body 101 is connected to the power end, the starting electric body preferentially conducts the temperature sensor and the heating wire at the positive and negative electrode interfaces of the starting battery body 101 through the temperature monitoring module 102. The temperature at the positive and negative electrode interfaces of the starting battery body is increased by heating the heating wire, thereby increasing the chemical reaction rate around the positive and negative electrode interfaces of the starting battery body 101.

[0068] When the power consumption end is supplied by the starting battery body 101, the starting battery body 101 conducts current to all temperature sensors and corresponding heating wires through the temperature monitoring module 102, and all heating wires are used to heat the starting battery body 101;

[0069] The temperature sensor can monitor the temperature around the starting battery body 101 in real time and accurately, and provide the system with accurate temperature data. By powering on the temperature sensor first, the system can obtain accurate temperature information before the heating wire is heated, so as to adjust the heating power and duration of the heating wire according to actual needs to avoid overheating or insufficient heating. The system can dynamically adjust the heating strategy of the heating wire according to the data of the temperature sensor, so that energy can be used more efficiently and reasonably.

[0070] Furthermore, it should be explained that the resistors in the starting battery body 101 and the corresponding circuits involved in the system in the present invention all use low temperature coefficient resistors that will not produce large resistance deviations in stages one, two, and three, mainly to maintain the current stability in the system, and the main features of the low temperature coefficient resistors include:

[0071] Strong temperature stability: Within the specified temperature range, the change in resistance value with temperature is very small, even negligible. The temperature coefficient (TCR) of this type of resistor is very low, usually expressed in PPM / ℃ (parts per million per degree Celsius). The temperature coefficient of some high-precision low-temperature drift resistors can be as low as 0.2PPM / ℃ or lower.

[0072] High precision: In addition to temperature stability, low temperature coefficient resistors are usually also very accurate and have a small tolerance range, which can meet applications that require high resistance value accuracy.

[0073] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A control system for a sodium ion starter battery with rapid energy replenishment, comprising: Starting battery body; A preheating module is arranged around the starting battery body; A temperature monitoring module is connected to the preheating module signal and is used to monitor the temperature of the preheating module; The current monitoring module is connected to the preheating module signal, and is used to control the power supply of the starting battery body, and monitor the remaining power of the starting battery body and the real-time output current of the starting battery body; When the starting battery body is electrically connected to the power end, it continuously maintains current output for the preheating module, the temperature monitoring module, and the current monitoring module, and is characterized by: The temperature monitoring module divides the temperature of the monitored preheating module into stages one, two and three; The temperature in stage 1 is -40°~0°; The temperature in stage 2 is 1°~25°; Stage three is the temperature of 26°~60°; When the temperature monitored by the temperature monitoring module is the temperature of stage 1, the battery body is started to conduct current with the power consumption end through the step-up transformer; When the temperature monitored by the temperature monitoring module is the temperature of stage 2, the battery body is started to conduct current with the power consumption end through the step-up transformer and the automatic transformer in sequence; When the temperature monitored by the temperature monitoring module is the temperature of stage three, the battery body is started to conduct current with the power consumption end through the automatic transformer; The automatic transformer forms a signal connection with the current monitoring module, and when the current detected by the current monitoring module gradually increases, the voltage at the automatic transformer gradually decreases; When the temperature monitored by the temperature monitoring module is the temperature of stage 1, the battery body is started to conduct current with the power consumption end through the step-up transformer, the current voltage of the current passing through the step-up transformer is increased, and the current output to the preheating module is increased accordingly, so as to increase the temperature generated by the preheating module by increasing the current output; When the temperature monitored by the temperature monitoring module is the temperature of the second stage, the battery body is started to conduct current with the power consumption end through the step-up transformer and the automatic transformer in sequence, firstly, the current output to the preheating module is increased through the step-up transformer to increase the temperature generated by the preheating module, and then the current voltage is reduced through the automatic transformer to reduce the current output power of the power consumption end by reducing the current voltage; Among them, when the temperature monitored by the temperature monitoring module is the temperature of stage three, the battery body is started to form current conduction with the power consumption end through the automatic transformer, and the current voltage of the current passing through is changed by the automatic transformer to keep the current output at the power consumption end stable.

2. A control system for a sodium ion starting battery with rapid energy replenishment according to claim 1, characterized in that: The current monitoring module divides the total power of the startup battery into a main power segment and a secondary power segment by percentage. The power of the main power segment is used to supply power to the power-consuming end, and the power of the secondary power segment is used to supply power to the preheating module, the temperature monitoring module and the current monitoring module. The main power segment accounts for 90% of the total power, and the secondary power segment accounts for 10% of the total power. When the battery is in use, the main power segment has priority in power supply, and when the power share of the main power segment drops to 0%, the battery does not supply power to the power-consuming end; The starting battery body first supplies power to the preheating module, the temperature monitoring module and the current monitoring module.

3. The control system of a sodium ion starting battery with rapid energy replenishment according to claim 1, characterized in that: The current monitoring module divides the current output value of the starting battery body into a current pre-output value and a current actual output value; When the temperature of the preheating module monitored by the temperature monitoring module is the highest threshold temperature of stage three, the ratio of the current pre-output value to the current actual output value is 1:1; When the temperature of the preheating module monitored by the temperature monitoring module is the lowest threshold temperature of stage 1, the ratio of the current pre-output value to the current actual output value is 3:1; As the temperature of the preheating module rises from the lowest threshold temperature in stage one to the highest threshold temperature in stage three, the ratio between the current pre-output value and the current actual output value gradually transitions from 3:1 to 1:

1.

4. A control system for a sodium ion starting battery with rapid energy replenishment according to claim 3, characterized in that: The temperature monitoring module includes a plurality of temperature sensors arranged around the starter battery body, and the preheating module includes heating wires arranged around each temperature sensor, each heating wire is electrically connected to a corresponding temperature sensor, and the current of the starter battery body must first pass through the temperature sensor before being transmitted to the heating wire to form electrical heating; The starting battery body forms a parallel circuit with all temperature sensors through the temperature monitoring module. At least one temperature sensor and a heating wire are arranged at the positive and negative electrodes of the starting battery body. When the starting battery body is connected to the power end, the starting electric body preferentially conducts the temperature sensor and the heating wire at the positive and negative electrode interfaces of the starting battery body through the temperature monitoring module. The temperature at the positive and negative electrode interfaces of the starting battery body is increased by heating the heating wire, thereby increasing the chemical reaction rate around the positive and negative electrode interfaces of the starting battery body. When the power consumption end is supplied by the starting battery body, the starting battery body conducts current to all temperature sensors and corresponding heating wires through the temperature monitoring module, and uses all heating wires to heat the starting battery body.

Images