System for enhancing overall battery discharge efficiency

Abstract

The present invention discloses a system for improving the overall discharge efficiency of a battery, comprising: a battery module, a current regulation module, and a control module; the input end of the current regulation module is connected to the battery module, the output end of the current regulation module is used to connect to an electrical device, the control module is respectively connected to the battery module and the current regulation module, and the control module is used to detect the operating temperature of the battery module and calculate the battery discharge current value according to the operating temperature of the battery module, and control the current regulation module to output the current of the battery discharge current value. The purpose of the present invention is to improve the discharge efficiency of the battery in actual use scenarios.

Description

Technical Field

[0001] The present invention relates to the field of batteries, and particularly to a system for improving the overall discharge efficiency of a battery. Background Art

[0002] The actual effective discharge capacity of a battery is closely related to factors such as the battery's own state, the environmental conditions it is in, and the discharge method. However, most actual devices are powered by constant voltage or constant current, and their working current is often unpredictable and far from the optimal discharge current of the battery. These factors limit the discharge efficiency of the battery in actual use scenarios. Summary of the Invention

[0003] The main objective of the present invention is to propose a system for improving the overall discharge efficiency of a battery, aiming to enhance the discharge efficiency of the battery in actual use scenarios.

[0004] To achieve the above objective, the present invention proposes a system for improving the overall discharge efficiency of a battery, including: a battery module, a current regulation module, and a control module;

[0005] The input end of the current regulation module is connected to the battery module, the output end of the current regulation module is used to connect to an electrical device, and the control module is respectively connected to the battery module and the current regulation module;

[0006] The control module is used to detect the working temperature of the battery module, calculate the current discharge current value of the battery based on the working temperature of the battery module, and control the current regulation module to adjust the output current of the battery according to the current discharge current value of the battery.

[0007] Optionally, the system for improving the overall discharge efficiency of the battery further includes:

[0008] A temporary energy storage module, the input end of the temporary energy storage module is connected to the current regulation module, and is used to store the electric energy output by the current regulation module;

[0009] A voltage regulation module, the input end of the voltage regulation module is connected to the output end of the temporary energy storage module, and the output end of the voltage regulation module is used to connect to an electrical device to supply power to the electrical device.

[0010] Optionally, the controlled end of the voltage regulation module is connected to the control module, and the control module is further used to control the voltage regulation module to output the required voltage of the electrical device according to the required voltage of the electrical device.

[0011] Optionally, the output terminal of the current regulation module is also used to connect to an electrical device, and the control module is further configured to control the current regulation module to turn on the output of the battery module to the electrical device when detecting that the output voltage of the voltage regulation module is less than or equal to a preset voltage value;

[0012] When detecting that the output voltage of the voltage regulation module is greater than the preset voltage value, the control module controls the current regulation module to turn off the output of the battery module to the electrical device.

[0013] Optionally, the control module is further configured to control the current regulation to charge the temporary energy storage module according to the operating parameters of the temporary energy storage module, so as to improve the operating performance of the temporary energy storage module and achieve overcharge protection of the temporary energy storage module.

[0014] Optionally, the control module is further provided with a communication port for receiving instructions from the electrical device, and controlling the current output of the current regulation module and the voltage output of the voltage regulation module according to the instructions of the electrical device.

[0015] Optionally, the control module is further provided with a current control terminal and a voltage control terminal, and controls the output current of the current regulation module by setting the current value of the current control terminal, and controls the output voltage of the voltage regulation module by setting the voltage value of the voltage control terminal.

[0016] Optionally, the control module has a sensing and detecting circuit, and the sensing and detecting circuit is used to detect the operating temperature of the battery module and the operating parameters of the temporary energy storage module.

[0017] Optionally, the system for improving the overall discharge efficiency of the battery further includes an alarm device, and the alarm device is connected to the control module. When the control module detects that the battery module and the temporary energy storage module are in an abnormal operating state, the alarm device is activated.

[0018] Optionally, the control module is further configured to detect the remaining capacity of the battery module, and when detecting that the remaining capacity of the battery module is less than a preset capacity value, control the battery module to turn off.

[0019] The present invention is provided with a battery module, a current regulation module and a control module. The input end of the current regulation module is connected to the battery module, and the output end of the current regulation module is used to connect to an electrical device. The control module is respectively connected to the battery module and the current regulation module. The control module is used to detect the operating temperature of the battery module, calculate the current discharge current value of the battery according to the operating temperature of the battery module, and control the current regulation module to adjust the output current of the battery according to the current discharge current value of the battery. The control module detects the operating temperature of the battery module, and a corresponding discharge current value is set for each operating temperature of the battery module. When the battery module discharges with this discharge current value, the discharge efficiency of the battery is the highest. The control module controls the current regulation module to output a current with the discharge current value according to the detected operating temperature, so that the battery module discharges with the current output by the current regulation module, improving the discharge efficiency of the battery module. Compared with the discharge battery in the background technology, by setting such a system, the discharge performance of the battery in the actual use scenario is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic diagram of the functional modules of an embodiment of the system for improving the overall discharge performance of the battery of the present invention;

[0022] Figure 2 It is a schematic diagram of the circuit structure of an embodiment of the system for improving the overall discharge performance of the battery of the present invention.

[0023] Explanation of the reference numerals in the drawings:

[0024] Label Name Label Name 00 Control module 10 Battery module 20 Current regulation module 30 Temporary energy storage module 40 Voltage regulation module 50 Electrical equipment

[0025] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] The present invention proposes a system for improving the overall discharge efficiency of a battery, which is applicable to the field of battery discharge.

[0030] The existing working current of a battery is often unpredictable and far from the optimal discharge current of the battery, which limits the discharge efficiency of the battery in actual use scenarios.

[0031] Refer to Figure 1 , in an embodiment of the present invention, the system for improving the overall discharge efficiency of a battery includes: a battery module 10, a current adjustment module 20, and a control module 00;

[0032] The input end of the current adjustment module 20 is connected to the battery module 10, the output end of the current adjustment module 20 is used to connect to an electrical device 50, and the control module 00 is respectively connected to the battery module 10 and the current adjustment module 20;

[0033] The control module 00 is used to detect the working temperature of the battery module 10, calculate the current discharge current value of the battery according to the working temperature of the battery module 10, and control the current adjustment module 20 to adjust the output current of the battery according to the current discharge current value of the battery.

[0034] Specifically, the control module 00 detects the working temperature of the battery module 10. Each working temperature of the battery module 10 is provided with a corresponding discharge current value. The control module 00 controls the current adjustment module 20 to output a current with the discharge current value according to the detected working temperature. The output current of the current adjustment module 20 is the discharge current of the battery module 10.

[0035] In this embodiment, the output current of the current regulation module 20 is the discharge current of the battery module 10, and the control module 00 controls the discharge current of the battery module 10 by controlling the output current of the current regulation module 20.

[0036] There is a strong correlation between the effective utilization rate of the battery energy in the battery module 10 and the temperature and the discharge current. When the battery module 10 is at different operating temperatures, there will be a corresponding optimal discharge current value. When the battery module 10 discharges at this discharge current value, the effective utilization rate of the battery energy is the highest. Therefore, the control module 00 detects the operating temperature of the battery, calculates the corresponding optimal discharge current value according to the detected operating temperature, and controls the current regulation module 20 to output the corresponding optimal discharge current value, so that the discharge current of the battery module 10 is this optimal discharge current value, thereby improving the effective utilization rate of the battery energy.

[0037] It should be noted that since the operating temperature of the battery module 10 changes in real time during actual operation, when the operating temperature changes, the optimal discharge current value of the battery module 10 also changes in real time corresponding to the operating temperature. Therefore, the operating temperature detected by the control module 00 also changes in real time. When the operating temperature detected by the control module 00 changes, the output current of the current regulation module 20 is controlled to ensure that when the operating temperature of the battery module 10 changes, the discharge current of the battery module 10 is the optimal discharge current value, so that the battery discharge is at high efficiency.

[0038] In the same type of battery, the corresponding optimal discharge current value at the same temperature is the same. In different types of batteries, the corresponding optimal discharge current value at the same temperature is different. Before detecting the temperature of the battery module 10, the control module 00 first needs to preset the type of the battery. The control module 00 controls the output of the current regulation module 20 according to the optimal discharge current values of this type of battery at different temperatures, so as to improve the discharge efficiency of different types of batteries.

[0039] The working principle of this embodiment is that there is a strong correlation between the effective utilization rate of battery energy in the battery module 10 and temperature and discharge current. When the battery module 10 is at different operating temperatures, there will be a corresponding optimal discharge current value. When the battery module 10 discharges at this discharge current value, the effective utilization rate of battery energy is the highest. The control module 00 detects the operating temperature of the battery, calculates the corresponding optimal discharge current value based on the detected operating temperature, and controls the current adjustment module 20 to output the corresponding optimal discharge current value; when the operating temperature changes, the control module 00 detects the changed operating temperature, calculates the corresponding optimal discharge current value based on the detected changed operating temperature, and controls the current adjustment module 20 to output the newly calculated optimal discharge current value; when the model of the battery changes, the control module 00 resets the model of the battery, so that the control module 00 controls the output of the current adjustment module 20 according to the optimal discharge current value of this model of battery at different temperatures. By controlling the output current of the current adjustment module 20 by the control module 00, the discharge efficiency of different models of batteries at different times is improved, and the discharge performance of the battery in the actual use scenario is enhanced.

[0040] In addition to controlling the output of the current adjustment module 20 according to the operating temperature of the battery module 10, the control module 00 also detects other operating parameters of the battery module 10 and controls the output of the current adjustment module 20 according to other operating parameters, including measuring the humidity of the battery, the output voltage and current of the battery, and protecting the battery module 10 by controlling the output of the current adjustment module 20. When necessary, the passivated battery can be activated by increasing the discharge current of the battery module 10 and maintaining it for a period of time.

[0041] In the present invention, by setting the battery module 10, the current adjustment module 20 and the control module 00, the input end of the current adjustment module is connected to the battery module 10, and the output end of the current adjustment module 20 is used to connect to the electrical equipment 50. The control module 00 is respectively connected to the battery module 10 and the current adjustment module 20; the control module 00 is used to detect the operating temperature of the battery module 10, calculate the current discharge current value of the battery according to the operating temperature of the battery module 10, and control the current adjustment module 20 to adjust the output current of the battery according to the current discharge current value of the battery. The control module 00 detects the operating temperature of the battery module 10. For each operating temperature of the battery module 10, there is a corresponding discharge current value. When the battery module 10 discharges at this discharge current value, the discharge efficiency of the battery is the highest. The control module 00 controls the current of the discharge current value output by the current adjustment module 20 according to the detected operating temperature, so that the battery module 10 discharges with the current output by the current adjustment module 20, improving the discharge efficiency of the battery module 10. Compared with the discharge battery in the background technology, by setting such a system, the discharge performance of the battery in the actual use scenario is enhanced.

[0042] Referring to Figure 1 , in one embodiment, the system for enhancing the overall discharge efficiency of the battery further includes:

[0043] A temporary energy storage module 30, the input end of the temporary energy storage module 30 is connected to the current regulation module 20, and is used for storing the electric energy output by the current regulation module 20;

[0044] A voltage regulation module 40, the input end of the voltage regulation module 40 is connected to the output end of the temporary energy storage module 30, and the output end of the voltage regulation module 40 is used for connecting an electrical device 50 to supply power to the electrical device 50.

[0045] In this embodiment, the temporary energy storage module 30 is used for storing the electric energy output by the current regulation module 20, and the stored electric energy is used for supplying power to the electrical device 50. The electric energy output by the battery module 10 does not directly supply power to the electrical device 50. After the battery module 10 adjusts the output current through the current regulation module 20, it outputs electric energy to the temporary energy storage module 30. After the temporary energy storage module 30 adjusts the output voltage through the voltage regulation module 40, it outputs electric energy to the electrical device 50.

[0046] Since most actual devices are powered by constant voltage or constant current, their working current is often unpredictable, and the output current of the current regulation module 20 changes in real time with the working temperature of the battery module 10. The supply current of the electrical device 50 is very different from the output current of the current regulation module 20. Therefore, the battery module 10 does not directly supply power to the electrical device 50. By setting the temporary energy storage module 30, the battery module 10 outputs electric energy to the temporary energy storage module 30, and the temporary energy storage module 30 uses the electric energy to supply power to the electrical device 50. Especially for low-power devices that only need to be intermittently activated to enter a short working state and are in a dormant standby state for a long time usually, it can just charge the temporary energy storage module 30 with the relatively small and optimal discharge current of the battery during the dormant standby period of the device.

[0047] Referring to Figure 1 , in one embodiment, the controlled end of the voltage regulation module 40 is connected to the control module 00, and the control module 00 is further used for controlling the voltage regulation module 40 to output the required voltage of the electrical device 50 according to the required voltage of the electrical device 50.

[0048] The voltage regulation module 40 is used to regulate the output voltage of the temporary energy storage module 30. When the electrical device 50 is in different working states, it will request a supply voltage correspondingly. The output voltage of the voltage regulation module 40 is the supply voltage. In actual operation, the working voltage requested by the electrical device 50 changes in real time. When the requested working voltage changes, the output voltage of the voltage regulation module 40 changes. When the control module 00 detects that the working voltage requested by the electrical device 50 changes, it controls the output voltage of the voltage regulation module 40 to ensure the output of the supply voltage of the electrical device 50.

[0049] Referring to Figure 1 , in one embodiment, the output end of the current regulation module 20 is also used to connect to the electrical device 50, and the control module 00 is further used to control the current regulation module 20 to turn on the output of the battery module 10 to the electrical device 50 when detecting that the output voltage of the voltage regulation module 40 is less than or equal to a preset voltage value;

[0050] When detecting that the output voltage of the voltage regulation module 40 is greater than the preset voltage value, it controls the current regulation module 20 to turn off the output of the battery module 10 to the electrical device 50.

[0051] In this embodiment, the preset voltage value of the control module 00 is the voltage value that can meet the power supply of the electrical device 50. When the output voltage of the voltage regulation module 40 is greater than the preset voltage value, the output voltage of the voltage regulation module 40 can meet the power supply demand.

[0052] When the electrical device 50 is activated to work, it is powered by the temporary energy storage module 30; only when the temporary energy storage module 30 is insufficient to support the device to work, that is, when the output voltage of the voltage regulation module 40 is less than or equal to the preset voltage value and the output voltage of the voltage regulation module 40 cannot meet the power supply demand, the battery module 10 directly provides electrical energy to the electrical device 50, and the control module 00 abandons the optimal discharge current control, increases the output current of the current regulation module 20 to supply power to the electrical device 50. At this time, the output current of the current regulation module 20 is mainly used to meet the power supply of the electrical device 50, and the large current demand of the load is preferentially guaranteed.

[0053] Referring to Figure 1 , in one embodiment, the control module 00 is further used to control the current regulation to charge the temporary energy storage module 30 according to the working parameters of the temporary energy storage module 30, so as to improve the working performance of the temporary energy storage module 30 and realize the overcharge protection of the temporary energy storage module 30.

[0054] In this embodiment, the current regulation module 20 charges the temporary energy storage module 30 and has corresponding charging protection functions to ensure the safety of the temporary energy storage module 30 during operation.

[0055] The control module 00 detects the voltage, current, temperature, humidity, internal resistance, etc. of the temporary energy storage module 30 to detect its working state and performance indicators, and improves its performance through dedicated charging or discharging when necessary.

[0056] Refer to Figure 1 , in an embodiment, the control module 00 is further provided with a communication port for receiving instructions from the electrical equipment 50, and controlling the current output by the current adjustment module 20 and the voltage output by the voltage adjustment module 40 according to the instructions of the electrical equipment 50.

[0057] In this embodiment, the control module 00 interacts with the electrical equipment 50 to exchange power supply status and power consumption demand information through the communication port.

[0058] When the temporary energy storage module 30 supplies power to the electrical equipment 50, the control module 00 controls the voltage adjustment module 40 to output voltage according to the power consumption demand information; when the battery module 10 supplies power to the electrical equipment 50, the control module 00 controls the current adjustment module 20 to output current according to the power consumption demand information.

[0059] Refer to Figure 1 , in an embodiment, the control module 00 is further provided with a current control terminal and a voltage control terminal, and controls the output current of the current adjustment module 20 by setting the current value of the current control terminal, and controls the output voltage of the voltage adjustment module 40 by setting the voltage value of the voltage control terminal.

[0060] In this embodiment, the output current of the current adjustment module 20 and the output voltage of the voltage adjustment module 40 can also be manually set through the current control terminal and the voltage control terminal. For example, by increasing the discharge current of the battery to activate the passivated battery, selecting the power supply mode of the electrical equipment 50, etc. When the control module 00 cannot work automatically, or in some special scenarios where automatic control cannot complete the work, manual control can be used to complete it.

[0061] Refer to Figure 1 , in an embodiment, the control module 00 has a sensing and detection circuit, and the sensing and detection circuit is used to detect the working temperature of the battery module 10 and the working parameters of the temporary energy storage module 30.

[0062] In this embodiment, the control module 00 has a sensing and detection circuit, and the sensing and detection circuit is respectively connected to the battery module 10 and the temporary energy storage module 30, and is used to detect the working temperature of the battery module 10 and the working parameters of the temporary energy storage module 30.

[0063] Refer to Figure 1, the system for improving the overall discharge efficiency of the battery further includes an alarm device, which is connected to the control module 00, and the alarm device is activated when the control module 00 detects that the battery module 10 and the temporary energy storage module 30 are in an abnormal working state.

[0064] In this embodiment, the control determines whether the battery module 10 and the temporary energy storage module 30 are in an abnormal working state by detecting parameters such as voltage, current, and temperature. When the battery module 10 and the temporary energy storage module 30 are in an abnormal working state, a prompt is activated through the alarm device.

[0065] Refer to Figure 1 , the control module 00 is further configured to detect the remaining capacity of the battery module 10. When the detected remaining capacity of the battery module 10 is less than a preset capacity value, the control module 00 shuts down the battery module 10.

[0066] In this embodiment, when the battery capacity is lower than the preset value, the control module 00 controls the battery to stop outputting electric energy. The preset capacity value is the safe capacity value of the battery. When the battery continues to supply power below this capacity value, the performance of the battery may be damaged, and the battery needs to be replaced or charged.

[0067] Refer to Figure 2 , in one embodiment, based on the switching power supply current feedback control principle, the current regulation module takes the input current, VBAT is the battery module, Rs is the input current sampling resistor, V+, V- are the output ports of the current regulation module respectively, and the temporary energy storage module C1 composed of capacitors is connected to decouple the input capacitance of the current regulation module, L1, D1 and C2 are the decoupling capacitors at the output end of the current regulation module, U1 is the switching controller, Q1 is the electronic switch, and Vs is the waveform generator.

[0068] In this embodiment, based on the switching power supply buck-boost conversion topology, it has the functions of both boosting and bucking output, which can meet the requirements of a wide range of working voltages for the backend voltage regulation module and electrical equipment.

[0069] The difference between the switching controller U1 and the conventional switching-type voltage converter is that it uses the sampled signal of the input current as the input of the feedback loop to control the on and off of the switch, so that the average current of the input regulation module reaches the set value. As long as it has the characteristic of using the input current sampled signal as the feedback control switch, almost any topology of the switching-type voltage converter can be transformed into the current regulation module required by this solution. It takes into account the characteristics of simplicity and high efficiency.

[0070] The above are only alternative embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A system for improving the overall discharge efficiency of a battery, characterized in that, Comprising: A battery module, a current regulation module, and a control module; The input end of the current regulation module is connected to the battery module, the output end of the current regulation module is used to connect to an electrical device, and the control module is respectively connected to the battery module and the current regulation module; The control module is used to detect the operating temperature of the battery module, calculate the current battery discharge current value according to the operating temperature of the battery module, and control the current regulation module to adjust the output current of the battery according to the current battery discharge current value; A temporary energy storage module, the input end of the temporary energy storage module is connected to the current regulation module, and is used to store the electric energy output by the current regulation module; A voltage regulation module, the input end of the voltage regulation module is connected to the output end of the temporary energy storage module, and the output end of the voltage regulation module is used to connect to an electrical device to supply power to the electrical device; The controlled end of the voltage regulation module is connected to the control module, and the control module is further used to control the voltage regulation module to output the required voltage of the electrical device according to the required voltage of the electrical device; The output end of the current regulation module is further used to connect to an electrical device, and the control module is further used to control the current regulation module to turn on the output of the battery module to the electrical device when detecting that the output voltage of the voltage regulation module is less than or equal to a preset voltage value; When detecting that the output voltage of the voltage regulation module is greater than the preset voltage value, control the current regulation module to turn off the output of the battery module to the electrical device.

2. The system for improving the overall discharge efficiency of the battery according to claim 1, wherein The control module is further used to control the current regulation to charge the temporary energy storage module according to the operating parameters of the temporary energy storage module, so as to improve the operating performance of the temporary energy storage module and realize overcharge protection of the temporary energy storage module.

3. The system for improving the overall discharge efficiency of a battery according to claim 1, characterized in that, The control module is further provided with a communication port, which is used to receive instructions from the electrical device, and control the current regulation module to output current and the voltage regulation module to output voltage according to the instructions of the electrical device.

4. The system for improving the overall discharge efficiency of a battery according to claim 2, wherein The control module is further provided with a current control end and a voltage control end, and controls the output current of the current regulation module by setting the current value of the current control end, and controls the output voltage of the voltage regulation module by setting the voltage value of the voltage control end.

5. The system for improving the overall discharge efficiency of a battery according to claim 1, wherein The control module has a sensing and detection circuit, and the sensing and detection circuit is used to detect the operating temperature of the battery module and the operating parameters of the temporary energy storage module.

6. The system for improving the overall discharge efficiency of a battery according to claim 1, wherein The system for improving the overall discharge efficiency of the battery further includes an alarm device, the alarm device is connected to the control module, and when the control module detects that the battery module and the temporary energy storage module are in an abnormal operating state, the alarm device is activated.

7. The system for improving the overall discharge efficiency of a battery according to claim 1, wherein The control module is further used to detect the remaining capacity of the battery module, and when detecting that the remaining capacity of the battery module is less than a preset capacity value, control the battery module to turn off.

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