CN113964896A - Charger and charging method thereof - Google Patents

Charger and charging method thereof Download PDF

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Publication number
CN113964896A
CN113964896A CN202111159826.9A CN202111159826A CN113964896A CN 113964896 A CN113964896 A CN 113964896A CN 202111159826 A CN202111159826 A CN 202111159826A CN 113964896 A CN113964896 A CN 113964896A
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CN
China
Prior art keywords
charging
circuit
constant voltage
value
charger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202111159826.9A
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Chinese (zh)
Inventor
杨新新
陈�胜
叶剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Lead Lithium Zhixing Technology Co ltd
Original Assignee
Hangzhou Lead Lithium Zhixing Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Lead Lithium Zhixing Technology Co ltd filed Critical Hangzhou Lead Lithium Zhixing Technology Co ltd
Priority to CN202111159826.9A priority Critical patent/CN113964896A/en
Publication of CN113964896A publication Critical patent/CN113964896A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to a charger, which comprises a controller, a charging circuit and a counting circuit, wherein the counting circuit is used for recording the charging times of the charging circuit, the charging circuit comprises a constant voltage charging mode, and the charger is characterized in that when the counting value of the charging times of the charging circuit recorded by the counting circuit is increased, the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit to be reduced. The invention also protects a charging method. The charger and the charging method can ensure the service life of the battery.

Description

Charger and charging method thereof
Technical Field
The invention relates to the field of storage batteries.
Background
In the process of charging the lead-acid storage battery at present, three-stage charging is generally carried out, namely an initial constant-current stage, a middle constant-voltage stage and a later trickle stage, in order to ensure that enough electric quantity is charged, the voltage value of the constant voltage is generally set to be higher, however, the water loss of the battery is serious due to the charging with the higher constant-voltage value, so that a contradiction exists between the sufficient electric quantity charged by the battery and the water loss of the battery, particularly, under the condition that the charging frequency of the lead-acid storage battery is continuously increased, the higher voltage is easy to lose water during the constant-voltage charging, the contradiction is more serious, and the service life of the battery is further greatly shortened.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a charger, including a controller, a charging circuit, and a counting circuit for recording the charging times of the charging circuit, wherein the charging circuit includes a constant voltage charging mode, and the controller controls a constant voltage value of the constant voltage charging mode of the charging circuit to decrease when a count value of the charging times of the charging circuit recorded by the counting circuit increases.
Further, the charging circuit further comprises a constant-current charging mode for starting charging and a trickle charging mode for ending charging, and the constant-voltage charging mode is located between the constant-current charging mode and the trickle charging mode.
Further, the charging circuit charges for the number of times of the constant voltage charging mode.
Further, after the count value of the charging times of the charging circuit is increased by a certain number of times, the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit to be decreased.
Further, the certain number of times is the same certain number of times or a certain number of times gradually decreased.
Further, still include memory circuit, comparison circuit is used for with the count value of counting circuit with the count value that memory circuit predetermines is compared, works as the count value of counting circuit reaches when the count value that memory circuit predetermines, the controller control charging circuit's constant voltage charge mode charges with corresponding constant voltage value.
Further, the counting circuit for recording the number of times of charging of the charging circuit may be replaced with a timing circuit for recording a charging time of the charging circuit, and the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit to decrease as the count value of charging of the charging circuit recorded by the timing circuit increases.
The controller is used for controlling the constant voltage charging mode of the charging circuit to charge at a corresponding constant voltage value when the timing value of the timing circuit reaches the timing value preset by the storage circuit.
Further, the charger is used for charging a lead-carbon battery, and the content of the negative electrode carbon of the lead-carbon battery accounts for more than 0.5% of the negative electrode active material.
The invention also protects a charging method of the charger.
The charger and the charging method can ensure the service life of the battery.
Drawings
FIG. 1 is a block circuit diagram of a charger according to a first embodiment of the present invention;
fig. 2 is a circuit block diagram of a charger according to a second embodiment of the present invention.
Detailed Description
The invention is further described below with reference to specific figures and embodiments.
The invention provides a charger, which comprises a controller 6, a charging circuit 1, a counting circuit 2, a storage circuit 3 and a comparison circuit 4, wherein the charging circuit 1 comprises a constant voltage charging mode. The counter circuit 2 is used to record the number of charges of the charging circuit 1, that is, the count value of the counter circuit. The memory circuit 3 stores one or more preset count values, and the controller 6 controls the constant voltage charging mode to charge at a corresponding constant voltage value according to each count value. The charging is started, and the comparison circuit 4 is used for comparing the count value of the counting circuit 2 with the count value preset by the storage circuit 3. The controller 6 controls the constant voltage charging mode of the charging circuit 1 to perform charging at a corresponding constant voltage value or to perform charging at a constant voltage value lower than that of the previous constant voltage charging when the count value of the counter circuit 2 reaches the count value preset in the memory circuit 3, and preferably controls the constant voltage value of the constant voltage charging mode of the charging circuit to decrease as the count value of the counter circuit 2 increases. The charging circuit 1 of the present invention further comprises a constant-current charging mode for starting charging and a trickle charging mode for ending charging, wherein the constant-voltage charging mode is located between the constant-current charging mode and the trickle charging mode, and the controller 6 can control the charging circuit 1 to charge in a proper charging mode according to requirements. When the counting value of the charging times of the charging circuit recorded by the counting circuit is increased, the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit to be reduced, for example, the counting value is increased by the same certain times, the storage circuit 3 stores a preset counting value of 50, and when the counting circuit 2 records the charging times of the charging circuit 1 to be less than 50 times, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to be charged at a corresponding constant voltage value of 14.8V; the storage circuit 3 stores another preset count value of 100, and when the counting circuit 2 records that the charging frequency of the charging circuit 1 is between 50 and 100 times, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to charge at a corresponding constant voltage value of 14.6V; the storage circuit 3 stores another preset count value of 150, and when the counting circuit 2 records that the charging frequency of the charging circuit 1 is between 100 and 150 times, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to charge at a corresponding constant voltage value of 14.4V; in this way, the number of charging times is the same certain number of times, and the same number of times may be any one of the same number of times. The charging mode may also be a certain number of times of gradual decrease, for example, the certain number of times of increasing the count value is the certain number of times of gradual decrease, the storage circuit 3 stores a preset count value of 100, and when the counting circuit 2 records that the charging time of the charging circuit 1 is less than 100 times, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to perform charging at a corresponding constant voltage value of 14.7V; the storage circuit 3 stores another preset count value of 190, and when the counting circuit 2 records that the charging frequency of the charging circuit 1 is between 100 and 190 times, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to charge at a corresponding constant voltage value of 14.6V; the storage circuit 3 stores another preset count value of 270, and when the counting circuit 2 records that the charging frequency of the charging circuit 1 is between 190 and 270, the controller 6 controls the constant voltage charging mode of the charging circuit 1 to charge at a corresponding constant voltage value of 14.5V; in this way, the certain number of times of decrement is an arithmetic progression with arithmetic difference of 10 times based on 100, but it is also possible to use other suitable numbers as a base and an arithmetic progression with other arithmetic differences. The charging circuit 1 of the present invention may also be other charging mode combinations including a constant current charging mode to start charging and a constant voltage charging mode, etc. as needed. The charging times of the charging circuit recorded by the invention are preferably the times of a constant voltage charging mode, so that the actual charging times of the rechargeable battery can be better approached, the controller 6 can be charged with a proper constant voltage value, and the service life of the battery can be better ensured.
The charging method of the charger of the embodiment of the invention comprises the following steps of 1, starting; and 2, comparing the recorded count value of the counting circuit with a preset count value of the storage circuit, and controlling the constant voltage charging mode of the charging circuit to charge at a constant voltage value lower than that of the previous constant voltage charging when the recorded count value of the counting circuit reaches the preset count value of the storage circuit by the controller. The count value of the counting circuit is preferably the number of constant voltage charging modes of the charging circuit.
In the second embodiment of the present invention, the timer circuit 5 replaces the counter circuit in the foregoing, the timer circuit 5 is used for recording the charging time of the charging circuit 1, that is, accumulating the charging time of the charging circuit 1, the storage circuit is used for storing the preset timing value of the charging time of the charging circuit, and other contents are the same, at this time, the storage circuit stores one or more preset timing values, according to each timing value, the controller controls the constant voltage charging mode to charge with the corresponding constant voltage value, and starts charging, the comparison circuit compares the timing value of the timer circuit with the preset timing value of the storage circuit, when the timing value of the timer circuit reaches the preset timing value of the storage circuit, the controller controls the constant voltage charging mode of the charging circuit to charge with the corresponding constant voltage value, or charges with the constant voltage value lower than the previous constant voltage charging, that is, along with the increase of the timing value of the timer circuit, the controller preferably controls the constant voltage value of the constant voltage charging mode of the charging circuit 1 to decrease. In this embodiment, the setting of the timing value in the storage circuit may be based on the charging time T for completing one charging of the battery, and the same purpose may be achieved if the timing value is set to 100T, which is similar to the charging of the battery for 100 times.
A charging method of a charger according to a second embodiment of the present invention includes the following steps, step 1, start; and 2, comparing the recorded timing value of the timing circuit with the preset timing value of the storage circuit, and controlling the constant voltage charging mode of the charging circuit to charge at a constant voltage value lower than the constant voltage value of the previous constant voltage charging when the recorded timing value of the timing circuit reaches the preset timing value of the storage circuit by the controller.
In the third embodiment of the present invention, the counting circuit in the foregoing is replaced by a temperature detection device for recording the ambient temperature of the charging circuit 1, a storage circuit for storing a preset timing value of the ambient temperature, the other contents are the same, at the moment, the storage circuit stores one or more preset environmental temperature values, the controller controls the constant voltage charging mode to charge at a corresponding constant voltage value according to each environmental temperature value, the charging is started, the comparison circuit compares the environmental temperature value detected by the temperature detection device with the temperature detection device preset by the storage circuit, when the detected ambient temperature value reaches the ambient temperature value preset by the storage circuit, the controller controls the constant voltage charging mode of the charging circuit to charge with a corresponding constant voltage value, and preferably, the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit 1 to decrease as the ambient temperature value detected by the temperature detecting means increases. For example, the lamp-turning current value is set by a constant voltage value of 14.88V at an ambient temperature of 15 degrees celsius, a constant voltage value of 14.70V at an ambient temperature of 25 degrees celsius, a constant voltage value of 14.52V at an ambient temperature of 35 degrees celsius, and so on.
A charging method of a charger according to a third embodiment of the present invention includes the following steps, step 1, start; and 2, comparing the ambient temperature value detected by the temperature detection device with the ambient temperature value preset by the storage circuit, and controlling the constant voltage charging mode of the charging circuit to charge at a corresponding constant voltage value by the controller when the detected ambient temperature value reaches the ambient temperature value preset by the storage circuit. Preferably, in step 2, the controller controls the constant voltage value of the constant voltage charging mode of the charging circuit 1 to decrease as the ambient temperature value detected by the temperature detecting device increases.
Before the constant voltage charging mode is carried out each time, the charger judges the charging times or the charging duration or the ambient temperature of the charger through the counter or the timer, and adjusts the constant voltage value in the constant voltage charging mode according to the charging times or the charging duration or the ambient temperature, so that the water loss of the battery can be avoided, and the service life of the battery is prolonged. The charger of the invention is more suitable for household use to charge specific batteries for a long time.
The charger of the invention is used for charging the lead-acid storage battery, and is preferably used for charging the lead-acid storage battery with the content of the negative electrode carbon accounting for more than 0.5% of the negative electrode active material, and the lead-acid storage battery has quite strong charge receiving capacity even under the condition of low constant voltage value, so that the reduction of the constant voltage value in the constant voltage stage has little influence on the electric quantity rushing into the battery, and particularly, the constant voltage charging voltage can be gradually reduced under the condition of continuously increasing charging times or increasing environmental temperature, the battery can be ensured to be charged with enough electric quantity under the condition of reducing water loss, thereby solving the contradiction between water loss and sufficient electric quantity charging.
The charger of the invention is preferably provided with a reset switch which can be electrically connected with the counting circuit or the timing circuit, when a user needs to charge a new rechargeable battery, the user can operate the reset switch to reset the charging times in the counting circuit or the charging duration in the timing circuit, so that the charger can charge the new battery for use, the matching of the charging times or the charging duration of the battery is ensured, and the constant voltage charging of the battery can be carried out by proper constant voltage values.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.

Claims (16)

1. A charger comprises a controller, a charging circuit and a counting circuit for recording the charging times of the charging circuit, wherein the charging circuit comprises a constant voltage charging mode, and the charger is characterized in that when the counting value of the charging times of the charging circuit recorded by the counting circuit is increased, the constant voltage value of the constant voltage charging mode of the charging circuit is controlled to be reduced by the controller.
2. The charger of claim 1 wherein said charging circuit further comprises a constant current charging mode for initiating charging and a trickle charging mode for terminating charging, said constant voltage charging mode being located between said constant current charging mode and said trickle charging mode.
3. A charger according to claim 1 or 2, wherein said charging circuit charges a number of times in a constant voltage charging mode.
4. A charger according to claim 1 or 2, wherein said controller controls the constant voltage value of the constant voltage charging mode of said charging circuit to decrease after the count value of the number of times said charging circuit is charged increases a certain number of times.
5. The charger of claim 4, wherein the number of times is the same number of times or a progressively decreasing number of times.
6. A charger according to claim 1 or 2, further comprising a storage circuit, a comparison circuit for comparing the count value of the counting circuit with a count value preset by the storage circuit, wherein when the count value of the counting circuit reaches the count value preset by the storage circuit, the controller controls the constant voltage charging mode of the charging circuit to charge at a corresponding constant voltage value.
7. A charger as claimed in claim 1 or 2, wherein said counting circuit for recording the number of times said charging circuit is charged is replaced with a timing circuit for recording the charging time of said charging circuit, and said controller controls the constant voltage value of the constant voltage charging mode of said charging circuit to decrease as the count value of charging of said charging circuit recorded by said timing circuit increases.
8. The charger according to claim 7, further comprising a storage circuit, a comparison circuit for comparing a timing value of said timing circuit with a timing value preset in said storage circuit, wherein when the timing value of said timing circuit reaches the timing value preset in said storage circuit, said controller controls the constant voltage charging mode of said charging circuit to charge at a corresponding constant voltage value.
9. A charger according to claim 1 or 2, wherein the charger is used for charging a lead-carbon battery having a negative electrode carbon content exceeding 0.5% in terms of a negative electrode active material.
10. A charging method of a charger, the charger includes the controller, charging circuit, counting circuit used for recording the charging number of times of the said charging circuit, memory circuit used for storing the preset count value of the charging number of times of the charging circuit, the said charging circuit includes the charging mode of the constant voltage, including the following steps, step 1, begin; and 2, comparing the recorded count value of the counting circuit with a preset count value of the storage circuit, and when the recorded count value of the counting circuit reaches the preset count value of the storage circuit, controlling the constant voltage charging mode of the charging circuit to charge at a constant voltage value lower than the constant voltage value of the previous constant voltage charging by the controller.
11. The charging method of a charger according to claim 10, wherein in step 2, said charging circuit further comprises a constant-current charging mode for starting charging and a trickle charging mode for ending charging, said constant-voltage charging mode being located between said constant-current charging mode and said trickle charging mode.
12. The charging method of a charger according to claim 10 or 11, wherein the number of times the charging circuit is charged is the number of times of a constant voltage charging mode.
13. A charging method of a charger according to claim 10 or 11, wherein said counting circuit for recording the number of times said charging circuit is charged is replaced by a timing circuit for recording the charging time of said charging circuit, said storage circuit for storing a preset count value of the number of times said charging circuit is charged is replaced by a storage circuit for storing a preset timing value of the charging time of said charging circuit, and said step 2 is replaced by the steps of: and comparing the recorded timing value of the timing circuit with a preset timing value of the storage circuit, and when the recorded timing value of the timing circuit reaches the preset timing value of the storage circuit, controlling the constant voltage charging mode of the charging circuit to charge at a constant voltage value lower than that of the previous constant voltage charging by the controller.
14. A charging method using a charger according to claim 10 or 11, wherein the charger is used for charging a lead-carbon battery having a negative electrode carbon content exceeding 0.5% in terms of a negative electrode active material.
15. The utility model provides a charger, includes controller, charging circuit, is used for detecting ambient temperature's temperature-detecting device, charging circuit includes the constant voltage charging mode, and its characterized in that, when the ambient temperature value that detects reaches the ambient temperature value that the memory circuit was preset, the constant voltage charging mode of controller control charging circuit charges with corresponding constant voltage value.
16. The charger according to claim 15, wherein said controller controls a constant voltage value of a constant voltage charging mode of said charging circuit to decrease when the ambient temperature value detected by said temperature detecting means increases.
CN202111159826.9A 2021-09-30 2021-09-30 Charger and charging method thereof Withdrawn CN113964896A (en)

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Application Number Priority Date Filing Date Title
CN202111159826.9A CN113964896A (en) 2021-09-30 2021-09-30 Charger and charging method thereof

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Application Number Priority Date Filing Date Title
CN202111159826.9A CN113964896A (en) 2021-09-30 2021-09-30 Charger and charging method thereof

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CN113964896A true CN113964896A (en) 2022-01-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115765113A (en) * 2022-12-15 2023-03-07 铅锂智行(北京)科技有限公司 Charger and charging method thereof
CN116722621A (en) * 2023-06-26 2023-09-08 铅锂智行(北京)科技有限公司 Charging method of charger and charger thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115765113A (en) * 2022-12-15 2023-03-07 铅锂智行(北京)科技有限公司 Charger and charging method thereof
CN116722621A (en) * 2023-06-26 2023-09-08 铅锂智行(北京)科技有限公司 Charging method of charger and charger thereof
CN116722621B (en) * 2023-06-26 2024-04-30 周乐新能源(湖州)有限公司 Charging method of charger and charger thereof

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Application publication date: 20220121