TWI497865B - Charging method of battery - Google Patents

Description

Battery charger charging method

The present invention relates to a charging method, and more particularly to a charging method for a battery charger.

At present, most of the electronic products are charged by rechargeable batteries, and the batteries of the electronic products are often repeatedly charged. Therefore, if the design of the charger is not suitable, not only will it consume more power during the charging process, but excessive voltage or current will also cause irreparable damage to the electronic product and its battery. Therefore, with the development of electronic products, chargers and their charging methods are becoming more and more important.

Therefore, how to provide a charging method for a battery charger, which can improve the charging performance and protect the charged electronic product and its battery, is one of the current important topics.

In view of the above problems, it is an object of the present invention to provide a charging method for a battery charger that can improve charging performance and protect the electronic product to be charged and its battery.

To achieve the above object, a charging method for a battery charger according to the present invention charges a battery, the charging method includes: detecting a voltage of the battery; applying a pulse of a plurality of currents to the battery in a pulse phase; and a current In the phase, it is after the pulse phase and charges the battery with a certain current.

In one embodiment, the current values of the current pulses are determined based on one of the plurality of current gear positions.

In an embodiment, when the voltage of the battery is greater than a first voltage threshold When the implementation time of the pulse phase exceeds a first time threshold, the current phase is started.

In one embodiment, prior to the pulse phase, the charging method further includes a startup phase that charges the battery with a current when the voltage of the battery is less than a second voltage threshold.

In one embodiment, the pulse phase is initiated when the voltage of the battery is greater than the second voltage threshold or the implementation time of the startup phase exceeds a second time threshold.

In one embodiment, the charging method further includes a voltage phase after the constant current phase, which charges the battery at a certain voltage. The constant voltage value is determined according to one of the modes selected.

In one embodiment, the voltage phase is initiated when the voltage of the battery is greater than a third voltage threshold or the implementation time of the constant current phase exceeds a third time threshold.

In an embodiment, the charging method further includes a certain voltage constant current phase after the constant voltage phase, which charges the battery with a certain voltage and a certain current.

In one embodiment, when a charging current is less than a first current threshold or a constant voltage phase for which the implementation time exceeds a fourth time threshold, the constant voltage constant current phase is initiated.

In one embodiment, the charging method further includes a test phase after the constant voltage constant current phase, which turns off the output of the battery charger for a predetermined time and determines the condition of the battery according to the voltage of the battery.

In one embodiment, the test phase begins when the implementation time of the constant voltage constant current phase exceeds a fifth time threshold.

In one embodiment, the fifth time threshold is a ratio of the sum of the implementation time of the constant current phase to the implementation time of the constant voltage phase.

In one embodiment, when the voltage of the battery is less than a fourth voltage threshold, it is determined that the battery is damaged.

In one embodiment, the charging method further includes a sustain phase after the test phase, and charging begins when the voltage of the battery is below a fifth voltage threshold.

In one embodiment, when the voltage of the battery is greater than a sixth voltage threshold, the maintenance phase begins.

As described above, the charging method of the battery charger of the present invention includes a pulse phase, which applies a plurality of current pulses to the battery, whereby the pulsed output current design can extend battery life and efficiency, and reduce battery vulcanization. Phenomenon, thus improving charging performance and protecting the charged electronic product and its battery.

S01~S03‧‧‧Steps for charging method

1 is a flow chart of a method of charging a battery charger in accordance with a preferred embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the related drawings. A method of charging a battery charger, in which the same elements will be described with the same reference symbols.

1 is a flow chart of a method of charging a battery charger in accordance with a preferred embodiment of the present invention. The charging method of this embodiment charges a battery, and the charging method includes detecting a voltage of the battery, a pulse phase, and a certain current phase. It should be noted that this embodiment does not limit the battery to which the charging method is applied, and the battery may be, for example, various lead-acid batteries.

In step S01, the state of battery charging can be determined by detecting the battery voltage. The detection of the battery voltage can be implemented in some stages or at any stage of the charging method of the embodiment, and can be designed and adjusted according to actual needs.

In the pulse phase of step S02, a complex current pulse is applied to the battery. The current value of the current pulse can be determined by a single setting or by one of a plurality of current gear positions, and in the latter case, the current gear positions are plural selections for the user to select for charging. The pulsed output current design extends battery life and efficiency, and reduces battery vulcanization, thereby improving charging performance and protecting the charged electronics and their batteries.

The constant current phase is after the pulse phase and can be inserted, for example, immediately after the pulse phase, or between other phases of operation. In step S03 In the current phase, the battery is charged with a certain current. In this embodiment, the current value of the constant current phase may be the same as the current value of the current pulse of the pulse phase.

One application of a charging method of a battery charger in accordance with a preferred embodiment of the present invention will now be described. The charging method includes detecting a voltage of the battery, a pulse phase, and a certain current phase. In this application, the detection of the battery voltage can be implemented in any stage of the charging method of the embodiment to provide a basis for determining the state of the battery. The pulse phase is preceded by a start-up phase. In the startup phase, when the voltage of the battery is less than a second voltage threshold, the battery is charged with a certain current. Here, the second voltage threshold is, for example, 11V. And the current value of the constant current can be determined according to a percentage of one of the complex current gears. For example, there are three current gear positions such as "2A", "5A", and "10A" for the user to select, and the percentage is, for example, 10%. When the user selects "2A", the constant current value of the starting phase is 2A. 10%, that is, 0.2A. When the user selects “5A”, the constant current value of the startup phase is 10% of 5A, that is, 0.5A. When the user selects “10A”, the constant current value of the startup phase is 10A. 10%, which is 1A. . The application range and performance of the present invention can be expanded by selecting a plurality of current gear positions. Herein, the above percentages may also be other ratios.

The pulse phase is initiated when the voltage of the battery is greater than the second voltage threshold, or the implementation time of the startup phase exceeds a second time threshold. Here, the second voltage threshold is, for example, 11 V, and the second time threshold is, for example, 30 minutes.

In the pulse phase, a complex current pulse is applied to the battery. In this application, the current value of the current pulse is determined according to one of the plurality of current gear positions, for example, by the three current gear positions of the above 2A, 5A, 10A, etc., for the user to select. For example, when the user selects the current gear of 2A, the pulse phase uses the current of 2A for pulse charging, and so on. Of course, in other embodiments, the current value of the current pulse of the pulse phase may also be a percentage (eg, 90%) of the selected current gear. And the charging time of the pulse is, for example, 100 ms, then 100 ms is turned off, and the next pulse is started. The pulsed output current design extends battery life and efficiency, and reduces battery vulcanization, thereby improving charging performance and protecting the charged electronics and their batteries.

When the voltage of the battery is greater than a first voltage threshold or the implementation time of the pulse phase exceeds a first time threshold, the current phase is initiated. Here, the first voltage threshold is, for example, 12V, and the first time threshold is, for example, 1 hour.

In the constant current phase, the battery is charged with a certain current. In this application, the current value in the constant current phase is the same as the current value of the current pulse in the pulse phase. For example, when the user selects the operation selection of 2A, the pulse phase uses the current of 2A for pulse charging, and the current gear of the constant current phase is also 2A.

When the voltage of the battery is greater than a third voltage threshold, or the implementation time of the constant current phase exceeds a third time threshold, a certain voltage phase begins. The charging method of the present application can be applied to various modes, such as standard or snow mode. When the user selects the standard mode, the third voltage threshold is, for example, 14.4V. When the user selects the snow mode, the third voltage valve is used. The value is, for example, 15.7V. Here, the third time threshold is, for example, 16 hours.

In the constant voltage phase, it charges the battery at a certain voltage. Here, the voltage value of the constant voltage is determined according to one of the modes selected. For example, when the user selects the standard mode, the predetermined voltage is, for example, 14.4V. When the user selects the snow mode, the constant voltage is, for example, 15.7V.

When a charging current is less than a first current threshold, or an implementation time of a constant voltage phase exceeds a fourth time threshold, a certain voltage constant current phase is initiated. Here, the first current threshold is determined according to the selected current gear position. For example, the first current threshold is 10% of the selected current gear. In other words, the first current threshold corresponding to the current gear of 2A is 0.2A, the first current threshold corresponding to the operation selection of 5A is 0.5A, and the first current threshold corresponding to the operation selection of 10A is 1A. Here, the fourth time threshold is, for example, 8 hours.

In the constant voltage constant current phase, the battery is charged with a certain voltage and a certain current. In this application, the constant voltage varies depending on the operating mode. For example, the standard mode corresponds to a constant voltage of 14.9V and the snow mode corresponds to a fixed voltage of 15.7V. The constant current is different depending on the current gear position. For example, the constant current corresponding to the operation selection of 2A is 0.2A, and the corresponding power is selected for the operation selection of 5A. The flow is 0.5A, and the constant current corresponding to the operation selection of 10A is 1A.

When the implementation time of the constant voltage constant current phase exceeds a fifth time threshold, a test phase is started. Here, the fifth time threshold is, for example, a ratio of the implementation time of the constant current phase to the implementation time of the constant voltage phase, which is, for example, between 0.5 and 0.625.

In the test phase, the output of the battery charger is turned off for a preset time and the condition of the battery is determined based on the voltage of the battery. Here, the preset time is, for example, 10 minutes. When the voltage of the battery is less than a fourth voltage threshold, it is determined that the battery is damaged. Here, the fourth voltage threshold is, for example, 11.6V. When the battery is judged to be damaged, a fault light is displayed and the charger output is turned off.

Conversely, when the voltage of the battery is greater than a sixth voltage threshold, the system begins a maintenance phase and displays a full charge. Here, the sixth voltage threshold is, for example, the same as the fourth voltage threshold, that is, 11.6V.

In the sustain phase, charging begins when the voltage of the battery is below a fifth voltage threshold. Here, the fifth voltage threshold is, for example, 12.6V. And the above charging system is charged to 14V (standard mode) or 14.4V (snow mode) to turn off the output. Here, the maintenance phase is a state in which the charger is connected to the battery and the charger is powered.

When the battery is removed or the utility is turned off, the maintenance phase is stopped.

When the charging method is performed for a preset time, it enters a re-cycle. Here, the preset time is, for example, 15 days. That is, after 15 days, the charging method can be returned to the startup phase, and the above charging method is continued.

In summary, the charging method of the battery charger of the present invention includes a pulse phase, which applies a plurality of current pulses to the battery, whereby the pulsed output current design can extend battery life and efficiency, and reduce battery vulcanization. Phenomenon, thus improving charging performance and protecting the charged electronic product and its battery.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

S01~S03‧‧‧Steps for charging method

Claims (14)

A charging method of a battery charger for charging a battery, the charging method comprising: detecting a voltage of the battery; applying a pulse of a plurality of currents to the battery in a pulse phase; and a certain current phase, After the pulse phase, the battery is charged with a certain current; wherein after the constant current phase, a certain voltage phase is further included, which charges the battery with a certain voltage; wherein a certain voltage constant current is further included after the constant voltage phase In the stage, it charges the battery with a certain voltage and a certain current. The charging method of claim 1, wherein the current value of the current pulses is determined according to one of a plurality of current gear positions. The charging method of claim 1, wherein the constant current phase is started when the voltage of the battery is greater than a first voltage threshold or the implementation time of the pulse phase exceeds a first time threshold. The charging method of claim 1, wherein before the pulse phase, the method further comprises: a start-up phase, when the voltage of the battery is less than a second voltage threshold, charging the battery with a certain current. The charging method of claim 4, wherein when the voltage of the battery is greater than the second voltage threshold or the implementation time of the startup phase exceeds a second time At the time of the threshold, the pulse phase begins. The charging method according to claim 1, wherein the voltage value of the constant voltage is determined according to one of the modes of selection. The charging method of claim 1, wherein the constant voltage phase is started when the voltage of the battery is greater than a third voltage threshold or the implementation time of the constant current phase exceeds a third time threshold. The charging method of claim 1, wherein when a charging current is less than a first current threshold or an implementation time of the constant voltage phase exceeds a fourth time threshold, the constant voltage constant phase is started. . The charging method of claim 1, wherein after the constant voltage constant current phase, the method further comprises: a test phase, turning off the output of the battery charger for a predetermined time and determining the battery according to the voltage of the battery situation. The charging method of claim 9, wherein the testing phase is started when the implementation time of the constant voltage constant current phase exceeds a fifth time threshold. The charging method of claim 10, wherein the fifth time threshold is a ratio of an implementation time of the constant current phase to a sum of implementation times of the constant voltage phase. The charging method of claim 9, wherein when the voltage of the battery is less than a fourth voltage threshold, the battery is judged to be damaged. The charging method of claim 9, wherein in the testing phase Then, the method further includes: a sustaining phase, starting charging when the voltage of the battery is lower than a fifth voltage threshold. The charging method of claim 13, wherein the maintaining phase is started when the voltage of the battery is greater than a sixth voltage threshold.