CN116325417B - Charger and charging method thereof - Google Patents
Charger and charging method thereof Download PDFInfo
- Publication number
- CN116325417B CN116325417B CN202180064904.9A CN202180064904A CN116325417B CN 116325417 B CN116325417 B CN 116325417B CN 202180064904 A CN202180064904 A CN 202180064904A CN 116325417 B CN116325417 B CN 116325417B
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- full charge
- charging
- charge mode
- circuit
- charger
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002253 acid Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical group [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a charger, which comprises a controller and a charging circuit, and is characterized in that the charging circuit comprises a full charge mode and a non-full charge mode, and the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode. The invention also discloses a charging method. The charger and the charging method can ensure the service life of the battery.
Description
Technical Field
The invention relates to the field of storage batteries.
Background
At present, in the process of charging an AGM lead-acid storage battery, three-stage charging is usually carried out, namely an initial fast charging stage, a middle slow charging stage and a later floating charging stage, the battery can be automatically fully charged by a charger as much as possible, however, the AGM battery can cause defects of aggravation of oxidation of the positive electrode of the battery, hydrogen evolution of the negative electrode, water loss and the like under the condition that the battery is fully charged or is close to being fully charged, so that the service life of the battery is reduced due to charging, and in addition, if the battery is not fully charged for a long time, the deposition of lead sulfate of the positive electrode of the battery is caused, and the performance and the service life of the battery are also influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a charger which comprises a controller and a charging circuit, wherein the charging circuit comprises a full charge mode and a non-full charge mode, and the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode.
Further, after the charging circuit is charged for a certain number of times in a full charge mode, the charging circuit is charged for a certain number of times in a non-full charge mode, and after the charging circuit is charged for a certain number of times in a non-full charge mode, the charging circuit is switched to the full charge mode for charging for a certain number of times.
Further, the number of times of the non-full charge mode of the charging circuit is equal to or greater than the number of times of the full charge mode of the charging circuit.
Further, the number of times of the non-full charge mode is 10 times, and the number of times of the full charge mode is 2 times.
Further, the charging system further comprises a charging mode switching circuit, and the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode through the charging mode switching circuit.
Further, the charging system further comprises a counting circuit, and the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode according to the counting circuit and through the charging mode switching circuit.
Further, the counting circuit comprises a full charge mode counting circuit and a non-full charge mode counting circuit.
Further, the charging system further comprises a storage circuit and a comparison circuit, wherein the comparison circuit is used for comparing the count value of the full charge mode counting circuit or the non-full charge mode counting circuit with a corresponding value preset by the storage circuit, and the controller controls the charging mode switching circuit to control the charging circuit to switch between the full charge mode and the non-full charge mode according to a comparison result.
Further, the full charge mode is high-current constant-current, constant-voltage and small-current trickle charge, and the non-full charge mode is high-current constant-current charge.
Further, the non-full charge mode is a high current constant voltage charge.
Further, the full charge mode is used for charging the battery, and the ratio of the charge quantity of the battery to the rated capacity is more than 100%.
Further, the battery is charged in the non-full charge mode, and the ratio of the charge capacity of the battery to the rated capacity is less than 100%.
The invention also discloses a charging method.
The charger and the charging method can ensure the service life of the battery.
Drawings
Fig. 1 is a circuit block diagram of a charger according to a first embodiment of the present invention;
Fig. 2 is a charging flow chart of the charger according to the first embodiment of the present invention;
FIG. 3 is a circuit block diagram of a second embodiment of the charger of the present invention;
fig. 4 is a circuit block diagram of a rechargeable battery according to a second embodiment of the present invention;
fig. 5 is a charging flow chart of a charger according to a second embodiment of the present invention.
Detailed Description
The invention is further described below with reference to specific drawings and examples.
The invention provides a charger, which comprises a controller 6, a charging circuit 1, a counting circuit 2, a storage circuit 3, a comparison circuit 4 and a charging mode switching circuit 5, wherein the charging circuit 1 comprises a full charge mode and a non-full charge mode. The counting circuit 2 is configured to count the number of times the charger charging circuit 1 charges in the last charging mode, and the counting circuit 2 may include a full charge mode counting circuit and a non-full charge mode counting circuit, and the storage circuit 3 stores a preset number of times the charger performs mode switching between full charge and non-full charge. The comparison circuit 4 is configured to compare the count value of the full charge mode count circuit or the non-full charge mode count circuit with a corresponding value preset by the storage circuit 3. The controller 6 can control the charging circuit 1 to switch between the full charge mode and the non-full charge mode by the charging mode switching circuit 5. The charging mode of the charging circuit of the charger can be judged by detecting the voltage or current information of the charging circuit, for example, when the battery voltage reaches 14.8V, the charging circuit is considered to be in a full charging mode, and otherwise, the charging circuit is in a non-full charging mode. The charger of the present invention, the controller 6 can control the charging circuit 1 to switch between the full charge mode and the non-full charge mode by software setting.
The charging method of the charger comprises the following steps that step 1 is started, and step 2, the charger is charged for a certain number of times in a full charge mode or in a non-full charge mode; and 3, after the charger is charged for a certain number of times in a full charge mode or a non-full charge mode, the charge mode of the charger is switched between the full charge mode and the non-full charge mode. In step 2, the charging circuit 1 of the charger is charged in the full charge mode or not in the full charge mode for a certain number of times. In step 3, the counting circuit 2 of the charger records the number of times of charging in the full charge mode or the non-full charge mode, the comparing circuit compares the count value of the full charge mode counting circuit or the non-full charge mode with the corresponding value of the mode switching of the charging circuit preset by the storage circuit 3, and if the count value reaches the preset value, the controller 6 can control the charging circuit to switch between the full charge mode and the non-full charge mode through the charging mode switching circuit 5. Such as: if the comparison circuit 4 compares the count value of the non-full charge mode counting circuit to be greater than or equal to the preset non-full charge times in the storage circuit 3, the controller 6 controls the charging circuit 1 to charge in the full charge mode; if the comparison circuit 4 compares the count value of the full charge mode counting circuit to be more than or equal to the preset full charge times in the storage circuit 3, the controller 6 controls the charging circuit 1 to charge in a non-full charge mode; if the preset value is not reached, the charging circuit of the charger continues to charge in the same charging mode.
The present invention provides a charger for a rechargeable battery 7 of a second embodiment, comprising a controller 6, a charging circuit 1, a detection circuit 2, a storage circuit 3, a comparison circuit 4 and a charging mode switching circuit 5, the charging circuit 1 comprising a full charge mode and a non-full charge mode. There are two modes of the last charge mode of the rechargeable battery, namely a full charge mode or a non-full charge mode. The memory circuit 3 stores a preset number of full charge and non-full charge times. The detection circuit 2 is configured to detect the number of times the rechargeable battery is charged in the last charging mode. The comparison circuit 3 is used for comparing the number of times detected by the detection circuit 2 with the number of times preset in the storage circuit 3. The charging mode of the rechargeable battery 7 according to the present invention can be determined by detecting the voltage or current information of the rechargeable battery, for example, when the battery voltage reaches 14.8V, the charging circuit is considered to be in the full charge mode, otherwise, the charging circuit is in the non-full charge mode. The charger of the present invention, the controller 6 can control the charging circuit 1 to switch between the full charge mode and the non-full charge mode by software setting.
The detection circuit 2 of the present invention may be replaced by a receiving circuit for receiving the number of times the rechargeable battery has been charged in the last charging mode, and the object of the present invention can be achieved.
The charging method of the charger according to the second embodiment of the present invention includes the steps of starting at step 1; step 2, detecting or receiving the number of times that the rechargeable battery is charged in the last charging mode; step 3, comparing the times with the times preset in a charger storage circuit; and 4, when the times reach the preset times in the charger storage circuit, the charger charges in a charging mode different from the last charging mode of the rechargeable battery. When the number of times detected or received by the detection circuit 2 reaches the preset number of times in the storage circuit 3, the controller 6 can control the charging circuit 1 to charge in a charging mode different from the last charging mode of the rechargeable battery 7 through the charging mode switching circuit 5. Such as: when the number of times of the non-full charge mode detected or received by the detection circuit 2 reaches the preset number of times of the non-full charge mode in the storage circuit 3, if the current charge mode of the charger is the full charge mode, the charging circuit 1 charges in the current charge mode; if the current charging mode is a non-full charging mode, the charging circuit 1 switches to the full charging mode for charging. When the number of times of the full charge mode detected or received by the detection circuit 2 reaches the preset number of times of full charge in the storage circuit 3, if the current charge mode of the charger is a non-full charge mode, the charging circuit 1 charges in the current charge mode; if the current charging mode is the full charge mode, the charging circuit 1 switches to the non-full charge mode for charging. And 4, when the times do not reach the preset times in the charger storage circuit, the charger charges in the charging mode which is the same as the last charging mode of the rechargeable battery.
The number of times of the non-full charge mode in the charger storage circuit 3 of the present invention may be set to 2 to 10 times, for example, 10 times, and the number of times of the full charge mode may be set to 1 to 5 times, for example, 2 times. The specific times can be set reasonably according to the needs. In addition, the number of times of the non-full charge mode of the charging circuit is preferably equal to or greater than the number of times of the full charge mode of the charging circuit. The invention is particularly suitable for charging specific batteries.
The full charge mode of the charging circuit 1 of the invention can be a large current constant current, constant voltage and small current trickle charge; the non-full charge mode can be high-current constant-current charge, or high-current constant-voltage charge. In addition, the full charge mode can be that the ratio of the charge quantity to the rated capacity of the battery is preferably more than 100%; the non-full charge mode may be a battery charge to rated capacity ratio of preferably less than 100%. Specific charging methods of the full charge mode and the non-full charge mode can be reasonably set according to the needs and are not important points of the invention. The specific charging capacity of the full charge mode and the non-full charge mode can have different values according to batteries of different types, different service life requirements and the like, for example, the full charge mode can be that the ratio of the charging capacity to the rated capacity of the battery is more than 95%; the non-full charge mode may be a battery charge to charge ratio of less than 95% to rated capacity, and is not critical to the invention.
The invention can ensure the service life of the battery through non-full charge, and the full charge can avoid irreversible lead sulfate at the positive electrode of the battery caused by long-time non-full charge. Thereby avoiding damage to the battery. The service performance and life of the battery are ensured.
In addition, the charger of the present invention can be applied to other secondary batteries, such as lithium batteries.
The full charge mode and the non-full charge mode of the charging circuit of the invention can be realized by one circuit or two independent circuits.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (13)
1. The charger for charging the AGM lead-acid storage battery comprises a controller and a charging circuit, and is characterized in that the charging circuit comprises a full charge mode and a non-full charge mode, the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode, the charging circuit is switched to the full charge mode for charging after being charged in the non-full charge mode for a certain number of times, the charging circuit is charged in the non-full charge mode for a certain number of times after being charged in the full charge mode for a certain number of times, the number of times of the non-full charge mode of the charging circuit is greater than or equal to the number of times of the full charge mode of the charging circuit, the number of times of the non-full charge mode is 2-10 times, and the number of times of the full charge mode is 1-5 times.
2. The charger for charging an AGM lead-acid battery according to claim 1, further comprising a charging mode switching circuit, wherein the controller controls the charging circuit to switch between the full charge mode and the non-full charge mode via the charging mode switching circuit.
3. A charger for charging an AGM lead acid battery according to claim 1 or 2, further comprising a counting circuit, said controller controlling said charging circuit to switch between said full charge mode and said non-full charge mode in dependence on said counting circuit.
4. A charger for charging an AGM lead acid battery according to claim 3, wherein said counting circuit comprises a full charge mode counting circuit and a non-full charge mode counting circuit.
5. The charger for charging an AGM lead acid battery according to claim 4 further comprising a memory circuit, a comparison circuit for comparing the count value of said full charge mode counter circuit or non-full charge mode counter circuit with a corresponding value preset by said memory circuit, said controller controlling said charging circuit to switch between said full charge mode and said non-full charge mode based on the comparison result.
6. The charger for charging an AGM lead-acid battery according to claim 1, wherein the full charge mode is high current constant current, constant voltage and low current trickle charge and the non-full charge mode is high current constant current charge.
7. The charger for charging an AGM lead-acid battery according to claim 6, wherein said non-full charge mode is a high current constant current, constant voltage charge.
8. A charger for charging an AGM lead acid battery according to claim 1, wherein the battery is charged in the full charge mode with a charge to rated capacity ratio of greater than 100%.
9. A charger for charging an AGM lead acid battery according to claim 1, wherein the battery is charged in said non-full charge mode, said battery charge to rated capacity ratio being less than 100%.
10. A charging method of a charger for charging a lead-acid battery, comprising the steps of charging the charger in a full charge mode and a non-full charge mode a certain number of times; and after the charging is performed for a certain number of times in the non-full charge mode, the charging is performed for the full charge mode, and after the charging is performed for a certain number of times in the full charge mode, the charging is performed for a certain number of times in the non-full charge mode, the number of times in the non-full charge mode is more than or equal to the number of times in the full charge mode, the number of times in the non-full charge mode is 2-10 times, and the number of times in the full charge mode is 1-5 times.
11. The charging method of a charger for charging a lead-acid battery according to claim 10, wherein the charger further comprises a storage circuit and a comparison circuit, wherein the comparison circuit is used for comparing the number of times of full charge mode charging or non-full charge mode charging of the counting circuit with corresponding values preset by the storage circuit, and controlling the charging circuit to switch between the full charge mode and the non-full charge mode according to the comparison result.
12. A charging method of a charger for charging a lead-acid battery as claimed in claim 10 or 11, wherein the charger comprises a controller which controls the charging mode of the charger to switch between the full charge mode and the non-full charge mode.
13. A method of charging a charger for charging a lead acid battery as in claim 10, wherein the lead acid battery is an AGM lead acid battery.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/076571 WO2022170581A1 (en) | 2021-02-10 | 2021-02-10 | Charger and charging method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116325417A CN116325417A (en) | 2023-06-23 |
| CN116325417B true CN116325417B (en) | 2024-06-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365783A (en) * | 2009-05-28 | 2012-02-29 | 松下电器产业株式会社 | Lead storage battery charging control method, charging control circuit, power source device and lead storage battery |
| CN112217242A (en) * | 2019-07-09 | 2021-01-12 | 北京小米移动软件有限公司 | Charging control method and device |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365783A (en) * | 2009-05-28 | 2012-02-29 | 松下电器产业株式会社 | Lead storage battery charging control method, charging control circuit, power source device and lead storage battery |
| CN112217242A (en) * | 2019-07-09 | 2021-01-12 | 北京小米移动软件有限公司 | Charging control method and device |
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