Battery detection system, battery detection method, charger and charging method

Abstract

According to the battery detection system, the voltage and current of the output end of a charging system are acquired through an acquisition unit, the output of the charging system is adjusted through a control unit according to the voltage and current of the output end, and the charging strategy can be optimized in the charging process; the state of the battery is detected through the detection unit, potential faults of the battery can be found, and the battery can be maintained and managed in a targeted mode. A battery detection system and a charging system are combined, real-time monitoring and dynamic adjustment in the charging process can be achieved, the charging effect is optimized, battery health is protected, and the use efficiency and safety of the battery are improved. According to the battery detection method and the charging method, the battery can be charged, the health state of the battery can be detected, potential faults and dangers of the battery can be found easily, the service life of the battery can be prolonged through targeted battery maintenance and management, the influence caused by low efficiency of the damaged battery is avoided, and the use experience is improved.

Description

Technical Field

[0001] The present invention belongs to the field of chargers, and in particular relates to a battery detection system, a battery detection method, a charger and a charging method. Background Art

[0002] A charger is a device that charges a battery by passing current through it. It can charge car batteries and other types of batteries. Traditional chargers can only charge batteries, and require separate battery testing equipment to detect the battery's health status and internal resistance, and perform electrical system tests. Separate battery testing equipment usually needs to be tested offline after the battery is charged, which is cumbersome to operate, and it is impossible to adjust the charging strategy in time during the battery charging process, and it is impossible to adapt to the real-time changes in the battery status. Moreover, with the continuous advancement of battery technology, the types and performance of batteries have become more diverse and complex. Different types of batteries, such as lithium-ion batteries, lead-acid batteries, nickel-metal hydride batteries, etc., have different charging characteristics and performance parameters, which puts higher requirements on the compatibility and adaptability of chargers. In addition, in large-scale battery application scenarios, such as energy storage power stations, it is a huge challenge to effectively manage and monitor many batteries. An integrated technology that can simultaneously achieve charging and real-time detection is needed to improve management efficiency, reduce maintenance costs, and ensure the safe and reliable operation of the entire battery system. Summary of the invention

[0003] In order to overcome the defects of the prior art, one object of the present invention is to provide a battery detection system, another object of the present invention is to provide a charger, another object of the present invention is to provide a battery detection method, and another object of the present invention is to provide a charging method. In order to achieve the above objects, the technical solutions adopted by the present invention are as follows:

[0004] A first aspect of the present invention provides a battery detection system connected to a charging system, wherein the charging system is connected to a battery. The battery detection system includes a collection unit, a control unit, and a detection unit. The collection unit collects the output voltage and current of the charging system. The control unit adjusts the output of the charging system according to the voltage and current of the output end. The detection unit detects the state of the battery. The control unit controls the output of the charging system according to the state of the battery.

[0005] Optionally, the control unit includes a main control module, a power topology control module and a voltage and current control module. The main control module controls the frequency and duty cycle of the switch tube at the output end of the charging system through the power topology control module according to the voltage and current at the output end, and controls the voltage and current at the output end of the charging system through the voltage and current control module.

[0006] Optionally, the battery detection system further includes a display unit, and the main control module displays data during the battery charging process through the display unit.

[0007] Optionally, the detection unit includes a DBT detection module for detecting the health status, internal resistance and electrical system status of the battery.

[0008] Optionally, when the health status of the battery is unqualified, the battery is repaired.

[0009] A second aspect of the present invention provides a charger, comprising a battery detection system and a charging system as described above, wherein the battery detection system is connected to the charging system, an input end of the charging system is connected to an AC power source, and an output end is connected to the battery.

[0010] Optionally, the charging system includes an input filter and rectifier unit and an output rectifier unit, the input end of the input filter and rectifier unit is connected to the AC power supply, the output end is connected to the input end of the output rectifier unit, the output end of the output rectifier unit is connected to the battery, and the control unit is connected to the output rectifier unit.

[0011] Optionally, the charging system further includes an output switch control unit, and the output rectifier unit is connected to the battery via the output switch control unit.

[0012] A third aspect of the present invention provides a battery detection method, which is used in the aforementioned battery detection system, comprising the following steps:

[0013] Connect the battery;

[0014] Performing a health check on the battery;

[0015] When the health status of the battery is qualified, charging the battery;

[0016] Detect the charging output;

[0017] When the charging output is qualified, charging continues until the battery is fully charged.

[0018] Optionally, when the health status of the battery is unqualified, the battery is repaired and then a health check is performed on the battery; when the health status of the battery is qualified, the battery is charged; when the health status of the battery is still unqualified after three repair cycles, the battery is judged to be a bad battery.

[0019] Optionally, when the charging output is unqualified, the charging output is adjusted.

[0020] Optionally, performing health detection on the battery includes detecting the health status, internal resistance and electrical system status of the battery.

[0021] Optionally, detecting the charging output includes detecting a voltage and a current of the charging output.

[0022] A fourth aspect of the present invention provides a charging method for the charger as described above, comprising the following steps:

[0023] Connect to AC power;

[0024] Determining whether the output terminal of the AC power supply is reversely connected;

[0025] When the output terminal of the power supply is not reversely connected, connecting a battery;

[0026] Select charging mode;

[0027] Performing a health check on the battery;

[0028] When the health status of the battery is qualified, charging the battery;

[0029] Detect the charging output;

[0030] When the charging output is qualified, charging continues until the battery is fully charged.

[0031] Optionally, when the output end of the AC power supply is reversely connected, a reverse connection error is reported and the reverse connection is released.

[0032] Optionally, when the charging output is unqualified, the charging output is adjusted.

[0033] The battery detection system of the present invention collects the output voltage and current of the charging system through the collection unit, and adjusts the output of the charging system according to the voltage and current of the output end through the control unit, which can optimize the charging strategy and reduce energy waste during the charging process; the detection unit detects the state of the battery, which helps to discover potential faults of the battery and perform targeted maintenance and management of the battery. The charger of the present invention combines the battery detection system with the charging system, which can realize real-time monitoring and dynamic adjustment during the charging process, thereby optimizing the charging effect, protecting the health of the battery, and improving the efficiency and safety of the battery. The battery detection method and charging method of the present invention can not only charge the battery but also detect the health status, internal resistance and electrical system test of the battery, which is convenient for checking the health status of the battery, helps to discover potential faults and dangers of the battery, and can extend the service life of the battery through targeted battery maintenance and management, avoiding the impact of bad battery inefficiency and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] After reading the specific embodiments of the present invention with reference to the accompanying drawings, readers will have a clearer understanding of various aspects of the present invention.

[0035] Figure 1 A system diagram of a battery detection system according to an embodiment of the present invention;

[0036] Figure 2 A system diagram of a battery detection system according to another embodiment of the present invention;

[0037] Figure 3 A system diagram of a charger according to an embodiment of the present invention;

[0038] Figure 4 A flowchart of a battery detection method according to an embodiment of the present invention;

[0039] Figure 5 is a flow chart of a charging method according to an embodiment of the present invention;

[0040] Description of reference numerals:

[0041] 1: Battery detection system; 2: Charging system; 3: Battery; 4: AC power supply;

[0042] 11: acquisition unit; 12: control unit; 13: detection unit; 14: display unit;

[0043] 121: main control module; 122: power topology control module; 123: voltage and current control module;

[0044] 21: Input filtering and rectifying unit; 22: Output rectifying unit; 23: Output switch control unit. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0048] Embodiment 1:

[0049] This embodiment provides a battery detection system 1, see Figure 1 The battery detection system 1 is connected to the charging system 2, and the charging system 2 is connected to the battery 3. The charging system 2 charges the battery 3, and the battery detection system 1 is used to detect the state of the battery 3 on the one hand, and detect the state of the output end of the charging system 2 during the charging process on the other hand, so as to adjust the charging strategy of the charging system 2 to improve the charging efficiency.

[0050] In this embodiment, the battery detection system 1 includes a collection unit 11, a control unit 12 and a detection unit 13. The collection unit 11 collects the output voltage and current of the charging system 2, and the control unit 12 adjusts the output of the charging system 2 according to the voltage and current of the output end of the charging system 2.

[0051] In this embodiment, the detection unit 13 detects the state of the battery 3, and the control unit 12 controls the output of the charging system 2 according to the state of the battery 3. Specifically, optionally, the detection unit 13 includes a DBT detection module. The DBT battery detection technology is an advanced battery performance detection method that can provide high-precision, real-time battery parameter measurement and analysis. Specifically, the DBT detection module is used to detect the health state, internal resistance and electrical system state of the battery 3. Specifically, as the battery is used, the internal resistance of the battery will gradually increase, and the battery aging degree can be intuitively understood by detecting the internal resistance of the battery; specifically, the electrical system state of the battery is the power state, voltage state and current state. When the health state of the battery 3 is unqualified, the battery 3 is repaired until the health state of the battery 3 is qualified. Specifically, the battery 3 can be repaired by increasing the output voltage of the charging system 2, and the battery 3 can also be repaired by floating charge by intermittently providing output voltage to the battery 3 through the charging system 2.

[0052] Embodiment 2:

[0053] This embodiment provides another battery detection system 1, see Figure 2 , the battery detection system 1 is connected to the charging system 2, and the charging system 2 is connected to the battery 3. The battery detection system 1 includes a collection unit 11, a control unit 12, a detection unit 13 and a display unit 14. The control unit 12 includes a main control module 121, a power topology control module 122 and a voltage and current control module 123. Specifically, the main control module 121 controls the frequency and duty cycle of the switch tube at the output end of the charging system 2 through the power topology control module 122 according to the voltage and current at the output end of the charging system 2, and controls the voltage and current at the output end of the charging system 2 through the voltage and current control module 123. Specifically, the main control module 121 displays the data of the battery 3 during the charging process through the display unit 14. Specifically, the display unit 14 can display the voltage, current and power percentage of the battery 3.

[0054] Embodiment three:

[0055] This embodiment provides a charger. Figure 3The charger includes a battery detection system 1 and a charging system 2 as in the second embodiment, wherein the battery detection system 1 is connected to the charging system 2, the input end of the charging system 2 is connected to the AC power source 4, and the output end is connected to the battery 3. The charging system 2 includes an input filter and rectifier unit 21, an output rectifier unit 22, and an output switch control unit 23. The battery detection system 1 includes a collection unit 11, a control unit 12, a detection unit 13, and a display unit 14. The control unit 12 includes a main control module 121, a power topology control module 122, and a voltage and current control module 123.

[0056] In this embodiment, the input end of the input filter and rectifier unit 21 is connected to the AC power supply 4, and the output end is connected to the input end of the output rectifier unit 22. The output end of the output rectifier unit 22 is connected to the input end of the output switch control unit 23, and the output end of the output switch control unit 23 is connected to the battery 3. The control unit 12 is connected to the output rectifier unit 22. Specifically, the input end of the acquisition unit 11 is connected to the output rectifier unit 22. The power topology control module 122 and the voltage and current control module 123 are respectively connected to the output end of the output rectifier unit 22.

[0057] In this embodiment, the input filtering and rectifying unit 21 is used to perform high-frequency and low-frequency filtering and rectification on the AC power source 4 .

[0058] In this embodiment, the main control module 121 is used to design the power, voltage and current of the output end of the output rectifier unit 22 .

[0059] In this embodiment, the output rectifying unit 22 is used to perform full-wave synchronous rectification on the output of the input filtering and rectifying unit 21 .

[0060] In this embodiment, the output switch control unit 23 is used to control whether the output rectifying unit 22 outputs.

[0061] The charger of this embodiment combines the battery detection system 1 with the charging system 2, which can realize real-time monitoring and dynamic adjustment during the charging process, thereby optimizing the charging effect, protecting the battery health, and increasing the battery life.

[0062] Embodiment 4:

[0063] This embodiment provides a battery detection method, which is used in the battery detection system 1 of the first embodiment. Figure 4 , the battery detection method comprises the following steps:

[0064] S3: Connecting a battery; specifically, connecting the battery to the battery detection system 1;

[0065] S5: Perform health check on the battery;

[0066] S51: When the health status of the battery is unqualified, repair the battery, and then perform a health check on the battery. When the health status of the battery is qualified, charge the battery; when the health status of the battery is still unqualified after three repair cycles, execute S52: determine that the battery is a bad battery. Specifically, performing a health check on the battery includes detecting the health status, internal resistance and electrical system status of the battery.

[0067] S6: When the health status of the battery is qualified, charging the battery;

[0068] S7: Detecting the charging output; specifically, detecting the voltage and current at the output end of the charging system 2;

[0069] S71: When the charging output is unqualified, adjusting the charging output. Specifically, adjusting the frequency and duty cycle of the output switch of the charging system 2;

[0070] S8: When the charging output is qualified, continue charging until the battery is fully charged.

[0071] Embodiment five:

[0072] This embodiment provides a charging method for the charger described in the third embodiment. Figure 5 , the charging method comprises the following steps:

[0073] S1: Connect the charger to an AC power source;

[0074] S2: Determine whether the output end of the AC power supply is reversely connected;

[0075] S21: When the output end of the AC power source is reversely connected, a reverse connection error is reported and the reverse connection is released.

[0076] S3: When the output end of the AC power source is not reversely connected, connecting the battery;

[0077] Performing a health check on the battery;

[0078] S4: Select a charging mode; specifically, select a charging current gear, a battery type, and an operating mode (voltage gear). In this embodiment, the battery types include CAL, GEL, AGM, LFP, etc., and the operating modes include 6V, 12V, and 24V.

[0079] S5: Perform health check on the battery;

[0080] S51: When the health status of the battery is unqualified, repair the battery, and then perform a health check on the battery. When the health status of the battery is qualified, charge the battery; when the health status of the battery is still unqualified after three repair cycles, execute S52: determine that the battery is a bad battery. Specifically, performing a health check on the battery includes detecting the health status, internal resistance and electrical system status of the battery.

[0081] S6: When the health status of the battery is qualified, charging the battery;

[0082] S7: Detect the charging output;

[0083] S71: When the charging output is unqualified, adjust the charging output.

[0084] S8: When the charging output is qualified, continue charging until the battery is fully charged.

[0085] The battery detection system of the present invention collects the output voltage and current of the charging system through the collection unit, and adjusts the output of the charging system according to the voltage and current of the output end through the control unit, which can optimize the charging strategy and reduce energy waste during the charging process; the detection unit detects the state of the battery, which helps to discover potential faults of the battery and perform targeted maintenance and management of the battery. The charger of the present invention combines the battery detection system with the charging system, which can realize real-time monitoring and dynamic adjustment during the charging process, thereby optimizing the charging effect, protecting the health of the battery, and improving the efficiency and safety of the battery. The battery detection method and charging method of the present invention can not only charge the battery but also detect the health status, internal resistance and electrical system test of the battery, which is convenient for checking the health status of the battery, helps to discover potential faults and dangers of the battery, and can extend the service life of the battery through targeted battery maintenance and management, avoiding the impact of bad battery inefficiency and improving the user experience.

[0086] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. The embodiments listed in the present invention cannot exhaust all implementation methods. All obvious changes or modifications derived from the technical solutions of the present invention are still within the scope of protection of the present invention. All documents mentioned in the present invention are cited as references in this application, just as if a document is cited as a reference separately.

Claims

1. A battery detection system connected to a charging system, wherein the charging system is connected to a battery, characterized in that: The charging system comprises a collection unit, a control unit and a detection unit. The collection unit collects the voltage and current at the output end of the charging system. The control unit adjusts the output of the charging system according to the voltage and current at the output end. The detection unit detects the state of the battery. The control unit controls the output of the charging system according to the state of the battery.

2. The battery detection system according to claim 1, characterized in that: The control unit includes a main control module, a power topology control module and a voltage and current control module. The main control module controls the frequency and duty cycle of the switch tube at the output end of the charging system through the power topology control module according to the voltage and current at the output end, and controls the voltage and current at the output end of the charging system through the voltage and current control module.

3. The battery detection system according to claim 2, characterized in that: The battery detection system further comprises a display unit, and the main control module displays data during the battery charging process via the display unit.

4. The battery detection system according to claim 3, characterized in that: The detection unit includes a DBT detection module for detecting the health status, internal resistance and electrical system status of the battery.

5. The battery detection system according to claim 4, characterized in that: When the health status of the battery is unqualified, the battery is repaired.

6. A charger, characterized in that: It comprises a battery detection system and a charging system as described in any one of claims 1 to 5, wherein the battery detection system is connected to the charging system, the input end of the charging system is connected to an AC power source, and the output end is connected to the battery.

7. The charger according to claim 6, characterized in that: The charging system includes an input filter and rectifier unit and an output rectifier unit. The input end of the input filter and rectifier unit is connected to the AC power supply, and the output end is connected to the input end of the output rectifier unit. The output end of the output rectifier unit is connected to the battery, and the control unit is connected to the output rectifier unit.

8. The charger according to claim 7, characterized in that: The charging system further includes an output switch control unit, and the output rectifier unit is connected to the battery via the output switch control unit.

9. A battery detection method, used in the battery detection system according to any one of claims 1 to 5, characterized in that: The following steps are involved: Connect the battery; Performing a health check on the battery; When the health status of the battery is qualified, charging the battery; Detect the charging output; When the charging output is qualified, charging continues until the battery is fully charged.

10. The battery detection method according to claim 9, characterized in that: When the health status of the battery is unqualified, the battery is repaired and then a health check is performed on the battery; when the health status of the battery is qualified, the battery is charged; when the health status of the battery is still unqualified after three repair cycles, the battery is judged to be a bad battery.

11. The battery detection method according to claim 9, characterized in that: When the charging output is unqualified, the charging output is adjusted.

12. The battery detection method according to claim 9, characterized in that: Performing health detection on the battery includes detecting the health status, internal resistance and electrical system status of the battery.

13. The battery detection method according to claim 9, characterized in that: Detecting the charging output includes detecting the voltage and current of the charging output.

14. A charging method, used for the charger according to claims 6-8, characterized in that: The steps include: Connect to AC power; Determining whether the output terminal of the AC power supply is reversely connected; When the output terminal of the power supply is not reversely connected, connecting the battery; Select charging mode; Performing a health check on the battery; When the health status of the battery is qualified, charging the battery; Detect the charging output; When the charging output is qualified, charging continues until the battery is fully charged.

15. The charging method according to claim 14, characterized in that: When the output end of the AC power source is reversely connected, a reverse connection error is reported and the reverse connection is released.

16. The charging method according to claim 14, characterized in that: When the charging output is unqualified, the charging output is adjusted.

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