TWI394308B - A charge management device, system and method for a rechargeable battery - Google Patents

Description

Charging battery charging management device, system and method thereof

The present invention relates to a charge management apparatus, system, and method for a rechargeable battery.

Consumers have an increasing demand for portable electronic products, such as notebook computers, MP3 players, digital cameras, cell phones and other handheld devices, etc., because these electronic products are battery-operated and portable. Therefore, it can be integrated into the lives of most people so quickly, and the batteries used in these electronic products are rechargeable. Therefore, whether it is environmental protection or price considerations, rechargeable batteries are such. Portable electronic products are chosen as the first consideration in standard equipment, so most electronic products are equipped with rechargeable batteries and corresponding charging systems to provide consumer use.

However, the current charging device has several problems. The current charging device determines whether the rechargeable battery has been charged by the charging device by using a relative value or a percentage value of the charging result determined by detecting a voltage change of the rechargeable battery and a change in the charging current. Fully charged, and this detection method may cause battery overcharge in the face of battery aging caused by battery aging, and the result of overcharging of the battery often results in shortened battery life, wasted power, and even worse. It can cause battery explosion problems, so how to improve this detection method and provide a safe charging device and system is an urgent need for research.

It is an object of the present invention to provide a charging management apparatus, system and method for a rechargeable battery to improve the deficiencies of the prior art.

According to a feature of the present invention, a charging management system for a rechargeable battery according to the present invention includes a unit to be charged and a charging management device. The charging management device further includes a power supply unit, a metering control unit, and a data input and output unit, and the charging and charging unit is used. The measuring voltage and current input signals provided by the unit are calculated and processed to output a measured value, and the charging program and the loop can be controlled according to the preset parameters.

According to another feature of the present invention, a charging management device for a rechargeable battery according to the present invention is coupled to a unit to be charged for providing a measuring voltage and a current input signal, the charging management device comprising a power supply unit and a metering control The unit and the data input and output unit calculate and process the voltage and current input signals provided by the unit to be charged to output a measured value, and can control the opening and closing of the charging program and the loop according to the preset parameters.

According to still another feature of the present invention, a charging management method for a rechargeable battery provided by the present invention includes the steps of: a charging unit providing a measuring voltage and a current input signal; and a metering control unit receiving the measuring voltage and the current input signal. The metering control unit provides a metering value according to the input signal of the measured voltage and current; and determines whether to accumulate and store the metering value in a data input/output unit via a charging management parameter value comparison program.

The beneficial effects of the invention are:

1. Effectively avoid overcharging of the battery, resulting in shortened battery life or even battery explosion.

2. The battery's absolute charge and battery charge loss can be known immediately after the charging process is completed.

3. Suitable for charging various types of rechargeable batteries.

4. The battery storage capacity required for battery production is required for application.

The above and other objects, features, and advantages of the present invention will become more apparent and understood by the appended claims appended claims

1 is a schematic diagram of a charging management system for a rechargeable battery according to an embodiment of the present invention. Please refer to FIG. 1 for a description of a preferred embodiment of the present invention. The charging management system 1 of the preferred embodiment of the present invention includes a charging management device 11 and a to-be-charged unit 12, wherein the charging management device 11 further includes a power supply unit 111, a metering control unit 112, and a data input/output unit 113. 12 can be a battery.

The metering control unit 112 is coupled to the power unit 111, the unit to be charged 12, and the data input unit 113. The data input unit can be connected to an external system or device through technologies such as an LCD touch screen, wired communication, and wireless communication. And reading and writing data, and the metering control unit 112 is configured to receive an input signal of the measured voltage and current provided by the unit to be charged 12, and the metering control unit 112 performs signal conversion on the input signal, The signal is processed by the associated digital signal, which is then generated to generate at least one measured value, wherein the measured value is the actual amount of charge at a single point in time.

The data input/output unit 113 is coupled to the measurement control unit 112, and can receive the measurement value output by the measurement control unit 112, and has the stored and accumulated measurement value and related application parameters. The data input and output unit 113 further has data. The input/output function can externally connect an LCD touch screen, a wired or wireless communication interface, and perform data reading and writing or data exchange with an external system or device to provide a charging management related application; the data input and output unit 113 receives the measured value. The accumulated electric power of the previous time point is added to the data output unit 113, and the accumulated electric quantity stored by the data output unit 113 is the total electric quantity value of the sub charging.

After receiving the measurement value output by the measurement control unit 112, the data input/output unit 113 determines whether to accumulate and store the measurement value through a charge management parameter value comparison program, and the charge management parameter value is a rechargeable battery voltage. Any of the rated value, the rechargeable battery voltage upper limit value, the rechargeable battery current rating, the rechargeable battery current upper limit value, the rechargeable battery power rating, or the rechargeable battery power upper limit value, via the charge management parameter value and After the actual charging status is compared, the battery charging process is continued, interrupted or alerted. If the measured charging battery current is greater than the charging battery current upper limit, the charging process is interrupted.

2 is a flow chart showing a charging management method of a rechargeable battery in accordance with a preferred embodiment of the present invention. For the description of Fig. 2, please refer to Fig. 1 together.

In step S302, the data input and output unit 113 receives external data, and the data input mode can be an LCD touch screen, a wired or wireless communication interface; and the received data is provided to the measurement control unit 112 as a charging power upper limit and a voltage upper limit. Control the parameters of the charging program and reset the accumulated value in the memory. In step S304, the charging procedure is started. In step S306, the to-be-charged unit 12 provides an input signal for measuring voltage and current to the metering control unit 112 in the charging process. In step S308, the metrology control unit 112 receives the measurement input signal, and after the conversion process, generates a measurement value to be provided to the data input/output unit 113. In step S310, the data input/output unit 113 accumulates and accumulates the measurement value provided by the measurement control unit 112 and the previous time measurement value in the memory. In step S312, the data input and output unit 113 compares the measured integrated value in the memory with the previously set charging power upper limit parameter value, and simultaneously compares the measured voltage value in the metering control unit 112 with the previously set voltage. Comparison of upper limit parameter values, that is, the comparison program is the rated value of the rechargeable battery voltage, the upper limit of the rechargeable battery voltage, the rated value of the rechargeable battery current, the upper limit of the rechargeable battery current, the rated value of the rechargeable battery, or the upper limit of the rechargeable battery Comparing the value with the actual charging condition, if the accumulated charging power value is greater than or equal to the charging battery power rating parameter and the charging battery voltage value is less than or equal to the charging battery voltage rating parameter, the process proceeds to step S402; If the charging battery power rating parameter is less than or equal to the charging battery voltage rating value is greater than or equal to the charging battery voltage rating parameter, the process proceeds to step S502; if the charging power accumulation value is less than or equal to the rechargeable battery power rating parameter and the rechargeable battery If the voltage value is less than or equal to the charging battery voltage rating parameter, the program proceeds to step S602; If the accumulated charging power value is greater than or equal to the charging battery power rating parameter and the charging battery voltage value is greater than or equal to the charging battery voltage rating parameter, the program proceeds to step S702.

In step S402, the metering control unit 112 will switch off the power source unit 111 to stop the charging process, and use the sound or provide another parameter value as the information for alerting the abnormality of the unit to be charged 12.

In step S502, the metering control unit 112 will switch off the power unit 111 to stop the charging process, and use the sound or provide another parameter value as the information for alerting the aging of the unit to be charged 12.

In step S602, the charging process will continue and return to step S310.

In step S702, the metering control unit 112 will switch off the power unit 111 to complete the battery charging procedure. In steps S402, S502, S602, and S702, the memory integrated measurement value of the data input/output unit 113 represents the total charge amount of the charge to be charged unit 12 in the charging process.

The charging management device 11 provided by the preferred embodiment of the present invention can be applied to charging devices of various rechargeable batteries. For example, the charging management device 11 can be applied to battery charging management of an electric vehicle.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention is subject to the definition of the scope of the patent application.

1. . . Charging management system

11. . . Charging management device

12. . . Unit to be charged

111. . . Power unit

112. . . Metering control unit

113. . . Data input and output unit

S302~S702. . . step

1 is a schematic diagram of a charge management system for a rechargeable battery according to the present invention;

2 is a flow chart showing a charging management method of a rechargeable battery according to an embodiment of the present invention.

1. . . Charging management system

11. . . Charging management device

12. . . Unit to be charged

111. . . Power unit

112. . . Metering control unit

113. . . Data input and output unit

Claims (10)

A charging management device for a rechargeable battery is coupled to a charging unit that can provide an input signal for measuring voltage and current. The charging management device includes: a power supply unit; and a metering control unit coupled to the power supply The unit and the to-be-charged unit are configured to receive the input signal of the measured voltage and current to output a measured value; and a data input/output unit coupled to the metering control unit to receive the measured value output by the metering control unit And accumulate and store the measured value. The charging management device of claim 1, wherein the metering control unit outputs the measured value as the actual charging power at a single time point, and the data input and output unit receives the measured value and accumulates with the previous time point. After the power is added up, it is stored in the data input and output unit, and the accumulated power value stored in the data input and output unit is the total charge value of the charge. The charging management device according to claim 1, wherein the data input and output unit has a data input and output function, and can be externally connected with an LCD touch display, a wired or wireless communication technology interface, and is used for external system or device. Data read and write exchange use. A charging management system for a rechargeable battery, comprising: a charging unit to provide a measuring voltage and current input signal; and a charging management device comprising: a power supply unit; a metering control unit coupled to the power unit and the The charging unit is configured to receive the input signal of the measured voltage and current to output a measured value; and a data input and output unit coupled to the metering control unit to receive the measured value output by the metering control unit, and A charge management parameter value comparison program determines whether to accumulate and store the measurement value. The charging management system of claim 4, wherein the unit to be charged is a battery. The charging management system of claim 4, wherein the charging management parameter value is a rechargeable battery voltage rating, a rechargeable battery voltage upper limit, a rechargeable battery current rating, a rechargeable battery current upper limit, Any of the rechargeable battery charge rating or the rechargeable battery charge upper limit. The charging management system according to claim 6, wherein the charging management parameter value comparison program performs the continuation, interruption or warning of the battery charging procedure after comparing the charging management parameter value with the actual charging condition. The charging management system of claim 7, wherein the metering control unit interrupts the charging procedure if the measured rechargeable battery power is greater than the rechargeable battery power upper limit during charging. A charging management method for a rechargeable battery, the method comprising: a charging unit to provide a measuring voltage and a current input signal; a metering control unit receiving the input voltage of the measuring voltage and current; the metering control unit is based on the measuring The voltage and current input signals provide a measurement value; and a charge management parameter value comparison program determines whether to accumulate and store the measurement value in a data input/output unit. The charging management method according to claim 9, wherein the charging management parameter value comparison program is a rechargeable battery voltage rating, a rechargeable battery voltage upper limit, a rechargeable battery current rating, and a rechargeable battery current upper limit. The value, the rated value of the rechargeable battery or the upper limit of the rechargeable battery and the actual charging status, if the accumulated charging value of the data input and output unit is less than the rated value of the rechargeable battery, and the measurement control unit measures When the rechargeable battery voltage is less than or equal to the rated value of the rechargeable battery, the charging is continued; if the accumulated charging power value of the data input and output unit is greater than the rated value of the rechargeable battery, and the charging battery voltage measured by the metering control unit If the charging battery voltage rating is less than the charging battery voltage, the charging program is interrupted; if the accumulated charging power value of the data input and output unit is less than the charging battery power rating, and the charging battery voltage measured by the metering control unit is equal to or greater than the rechargeable battery The charging procedure is interrupted at the voltage rating.