TWI589094B - Can regular adjust the charging current value of the sine wave charging method - Google Patents

Description

Sine wave charging method capable of regularly adjusting charging current value

The present invention relates to a charging method, and more particularly to a charging method in which a power supply device changes its charging current over time to form a charging process similar to a sine wave.

In recent years, with the rapid development of electronic and communication technologies, mobile terminal devices (such as mobile phones and smart phones, etc.) not only have powerful communication functions, but also provide many people who can satisfy people. Other application functions for daily life, work, social and entertainment, such as: note, timing, counting, scheduling, lighting, photography, video, GPS, drawing, statistics, conference, investment, withdrawal, shopping, booking, booking , ordering, chatting, socializing, games, etc., and so on, has become an indispensable device for most metropolitans. It has become a common sight everywhere in the metropolitan area, but modern The dissatisfaction of people with mobile terminal devices is unexpectedly not the performance of mobile terminal devices, but the battery life. After all, the vast majority of existing rechargeable batteries are not enough to maintain the daily usage of mobile terminal devices.

In order to solve the above problems, many operators have designed various power supply devices, such as mobile power, so that when the user goes out, the rechargeable battery can be charged when the rechargeable battery is insufficient. The "rechargeable battery" itself is a kind of chemical energy storage container, which mainly converts the external incoming electric energy into chemical energy during the charging process by the electrolyte therein, however, in the foregoing charging process, the electric energy It cannot be completely converted into chemical energy, and some of the electrical energy is converted into heat and dissipated, resulting in a "rechargeable battery". The temperature rises. Therefore, in order to reduce the heat energy generated by the rechargeable battery, the conventional charging method generally uses a small current for a long time to continuously charge the rechargeable battery, but this method will cause the charging time to be too long, causing user dissatisfaction. However, if a large current method is used for charging, the manufacturer must face the problem that the rechargeable battery generates a large amount of heat energy, thereby shortening the service life of the rechargeable battery.

In addition, the applicant found that most of the current mobile terminal devices use lithium batteries, and most of them use constant current (CC) / constant voltage (CV), in which the lithium battery is caused by excessive discharge. When the power is low, the power supply device (such as the mobile power supply) will first charge the lithium battery with Trickle Current (TC), so that the lithium battery reaches a certain amount of electricity first, and the power supply device will use a larger current. The lithium battery is charged. At this time, it is a constant current charging mode. After that, the power supply device will switch to the constant voltage charging mode to ensure that the lithium battery can be saturated. In addition to the aforementioned CC/CV methods, various charging methods have been proposed, such as: Pulse Charge (PC), Reflex Charge, and Sinusoidal Current (SC). ), Sinusoidal Ripple-Current (SRC) with constant voltage (CV) method, etc. However, the above various charging methods have their own advantages and disadvantages in practical use. Therefore, applicants hope to An innovative charging method is proposed to capture the advantages of other charging methods, thereby improving the charging efficiency, and reducing the temperature rise of the battery to prolong the service life of the rechargeable battery, which is also an important achievement of the present invention. Question.

In view of the large number of existing charging methods, almost all of them will face the problem of battery temperature rise. Therefore, the inventor, after years of research and development experience, has finally designed a regular adjustment of the present invention. Sinusoidal charging method such as charging current value Provide users with a more convenient charging method to improve the user's charging experience.

An object of the present invention is to provide a sine wave charging method capable of regularly adjusting a charging current value, which is applied to a power supply device (such as a mobile power source) so that the value of the charging current output by the power supply device can be As the time changes, a sinusoidal wave is formed to avoid a sudden rise in the temperature of the rechargeable battery. The charging circuit of the power supply device is electrically connected to a rechargeable battery, and the charging terminal of the charging circuit can Separably electrically connected to the two electrode ends (eg, positive and negative electrodes) of the rechargeable battery to regularly transmit the current value received by the charging circuit to the rechargeable battery, and the method is to charge and manage one of the charging circuits. The controller can sequentially transmit a first current value, a plurality of decay current values, a second current value, and a plurality of up-regulated current values to the rechargeable battery, and continuously repeat the transmission process of the current value until the The charging battery is saturated, wherein the first current value is transmitted to the rechargeable battery during a continuous charging period, and the first electric power is stopped during an interruption period. a flow value; wherein the first attenuation current value is less than the first current value, the second attenuation current value is less than the first attenuation current value, and so on, and the attenuation current value Transmitting, respectively, and sequentially continuing the charging period and the interruption period; the second current value is less than the last attenuation current value, and the transmission of the second current value sequentially continues during the charging period and the interruption period; In the value of the boosted current, the first boosted current value is greater than the second current value, the second boosted current value is greater than the first boosted current value, and so on, but are less than the first a current value, and the transmission of the current adjustment values respectively and sequentially continues during the charging period and the interruption period, such that the value of the charging current of the power supply device forms a charging process similar to a sine wave, and in the foregoing charging process There will be multiple interruption periods, so that the rechargeable battery can be prevented from adversely affecting the service life of other electronic components adjacent to the rechargeable battery due to excessive temperature.

For your convenience, the review committee can make a further understanding and understanding of the purpose, technical features and effects of the present invention. The embodiments are combined with the drawings, and the details are as follows:

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no

〔this invention〕

1‧‧‧Power supply unit

1A‧‧‧Mobile power supply

1B‧‧‧charger charger

11‧‧‧Charging circuit

111‧‧‧Charging end

113‧‧‧Charging management controller

2A‧‧‧Smart Phone

21‧‧‧Rechargeable battery

211‧‧‧ electrode end

L1‧‧‧ transmission line

L2‧‧‧ plug

H1‧‧‧First current value

H2‧‧‧second current value

T1‧‧‧Charging period

T2‧‧‧ interruption period

D1‧‧‧First decay current value

D2‧‧‧second decay current value

U1‧‧‧ first adjustable current value

U2‧‧‧second adjustment current value

301~310‧‧‧Steps

1 is a schematic diagram of a hardware structure of a power supply device and a rechargeable battery of the present invention; FIG. 2 is an embodiment of a power supply device and a rechargeable battery of the present invention; and FIG. 3 is another embodiment of the power supply device and the rechargeable battery of the present invention; Fig. 4 is a schematic view showing changes in the current value of the present invention; Fig. 5 is a flow chart of the present invention; and Fig. 6 is a temperature change diagram of the charging method of the present invention.

The present invention is a sine wave charging method capable of regularly adjusting a charging current value. In an embodiment, as shown in FIG. 1 , the method is applied to a power supply device 1 including a charging circuit. 11. The charging circuit 11 can be electrically connected to a rechargeable battery 21, so that the power supply device 1 transmits current to the rechargeable battery 21 via the charging circuit 11, in particular, due to the rechargeable battery 21 After being assembled into electronic products (eg, smart phones, tablets, etc.), the type of the rechargeable battery 21 will change depending on the type and design of the electronic product, and may be fixed to the electronic product. Therefore, the power supply device 1 of the present invention can also be designed as a different product, and can charge the rechargeable battery 21 directly or indirectly (for example, through a wire or other device).

For example, as shown in FIGS. 1 and 2, in another embodiment, the power supply device 1 can be a mobile power source 1A, and the charging circuit 11 is disposed in the mobile power source 1A. The battery 21 can be disposed in a smart phone 2A, and both ends of a transmission line L1 can be respectively connected to the mobile power source 1A and the smart phone 2A, so that the power of the mobile power source 1A can be sequentially transmitted through the battery. The charging circuit 11 and the transmission line L1 are indirectly delivered to the rechargeable battery 21 in the smart phone 2A; or, in another embodiment, as shown in FIGS. 1 and 3, the power supply device 1 can charge a battery The charging device 11 is disposed in the charging device 21, and the rechargeable battery 21 can be directly assembled to the charging charger 1B. When the charging charger 1B plugs a plug L2 into an indoor socket, Receiving an external current, the charging charger 1B directly charges the rechargeable battery 21 via the charging circuit 11; as described above, as long as the charging circuit 11 can be electrically connected to the rechargeable battery 21, The power supply device 1 can charge the rechargeable battery 21, that is, the connection relationship between the power supply device 1 and the rechargeable battery 21 according to the present invention.

In order to describe the connection relationship between the charging circuit 11 and the rechargeable battery 21 in detail, referring to FIG. 1 , the charging end 111 of the charging circuit 11 and the two electrode ends 211 of the rechargeable battery 21 respectively (eg, the positive electrode) Electrically connected to the negative electrode), so that the current received by the charging circuit 11 can be transmitted to the rechargeable battery 21. In this embodiment, the charging circuit 11 is provided with a charge management controller (113). The charging management controller 113 can store a charging software. When the charging circuit 11 receives the current supplied by the power supply device 1, for example, the battery in the mobile power source 1A (as shown in FIG. 2), or the seat Charging the external current received by the charger 1B (as shown in FIG. 3), the charging management controller 113 can execute the charging software to output a corresponding current value to the two charging terminals 111; although depicted in FIG. The charge management controller 113 has only five pins and is matched with a plurality of electronic components (such as capacitors, resistors, etc.). However, in other embodiments of the present invention, the operator can appropriately adjust according to product requirements. Charging circuit 11 Circuit configuration, as long as the charging circuit 11 for outputting a current value of the two charging terminal 111 can be electrically connected to the charge The two electrode terminals 211 of the battery 21 are the charging circuits 11 to be protected by the present invention.

In addition, as shown in FIGS. 1 and 4, in this embodiment, after the charging circuit 11 and the rechargeable battery 21 are electrically connected, the charge management controller 113 will have a current value of 3 amps (A). The first current value H1 is transmitted to the rechargeable battery 21, and after one charging period T1 of 100 milliseconds (ms) continues, the charging management controller 113 interrupts transmitting the first current value H1 for 100 milliseconds (ms) During an interruption period T2, the charge management controller 113 transmits a first decay current value D1 having a current value of 2.5 amps (A) to the rechargeable battery 21, and similarly, the charge management controller 113 After the charging period T1 of 100 milliseconds (ms), the first decay current value D1 is interrupted and continues for an interruption period T2 of 100 milliseconds (ms), after which the charge management controller 113 will have a current value of 2 amps ( A second decay current value D2 of A) is transmitted to the rechargeable battery 21, and after the charging period T1 of 100 milliseconds (ms), the second decay current value D2 is interrupted again, and the interruption of 100 milliseconds (ms) is also continued. During the period T2, next, the charge management controller 113 will have a current value of 1.5 amps (A). The second current value H2 is transmitted to the rechargeable battery 21, and after the charging period T1 lasting 100 milliseconds (ms), the second current value H2 is interrupted, and the interruption period T2 of 100 milliseconds (ms) is continued, but the foregoing implementation In the example, the current value data and the period data are all conveniently described. In other embodiments of the present invention, the current value data and the period data can be appropriately adjusted according to the implementation requirements, and in addition, in this embodiment, The charging period T1 is the same as the interruption period T2, but not limited thereto, the operator can make the charging period T1 and the interruption period T2 different from each other, for example, the charging period T1 is greater than the interruption period T2, or the charging period T1 is less than the interruption period T2. , first and foremost.

Furthermore, as shown in FIGS. 1 and 4, when the charge management controller 113 transmits the second current value H2 and sequentially passes through the charging period T1 and the interruption period T2, it will have a current value of 2 amps (A). a first regulated current value U1 is transmitted to the rechargeable battery 21, and the charge management control After the charging period T1 of 100 milliseconds (ms) is continued, the first regulated current value U1 is interrupted and continues for an interruption period T2 of 100 milliseconds (ms), and the charge management controller 113 sets the current value. A second regulated current value U2 of 2.5 amps (A) is transmitted to the rechargeable battery 21, and after a charging period T1 of 100 milliseconds (ms), the second regulated current value U2 is again interrupted, and continues for 100 milliseconds. After the interruption period T2 of (ms), the charge management controller 113 repeats the foregoing procedure, and sequentially transmits the first current value H1, the first attenuation current value D1, the second attenuation current value D2, and the second current. The value H2, the first regulated current value U1 and the second regulated current value U2 until the charge of the rechargeable battery 21 is saturated. Herein, the amount of the decay current values D1, D2 and the magnitudes of the boosted current values U1, U2 transmitted by the charge management controller 113 are written in the charge management controller 113 in advance so that The charge management controller 113 can surely perform the charging method of the present invention.

In order to clearly disclose the charging method of the present invention, only the processing flow of the charging management controller 113 of the present invention will be described below. Please refer to Figures 1, 4 and 5: (301) The first current value H1 Transfer to the rechargeable battery 21, proceeding to step (302); (302) determining whether the first current value H1 reaches a charging period T1, and if so, proceeding to step (303), otherwise, returning to step (302); (303) interrupting Transmitting the first current value H1, proceeding to step (304); (304) determining whether the first current value H1 has interrupted an interruption period T2, and if yes, proceeding to step (305), otherwise, returning to step (304); And sequentially continuing the charging period T1 and the interruption period T2, respectively, sequentially transmitting the attenuation current values D1 and D2 to the rechargeable battery 21, and the first attenuation current value (eg, D1) is smaller than the first The current value H1, the second attenuation current value (such as: D2) is less than the first attenuation current value (such as: D1), and so on, proceeds to step (306); (306) transmitting a second current value H2 to the rechargeable battery 21, proceeding to step (307); (307) determining whether the second current value H2 reaches the charging period T1, and if so, proceeding to step (308), otherwise, Returning to step (307); (308) interrupting transmission of the second current value H2, proceeding to step (309); (309) determining whether the second current value H2 has interrupted the interruption period T2, and if yes, proceeding to step (310), Otherwise, returning to step (309); (310) sequentially and separately continuing the charging period T1 and the interruption period T2, sequentially transmitting the adjusted current values U1, U2 to the rechargeable battery 21, and the first adjustment The rising current value (such as: U1) is greater than the second current value H2, and the second rising current value (such as U2) is greater than the first rising current value (such as U1), and so on, but The equal boost current values U1, U2 are all smaller than the first current value H1, and return to step (301).

In summary, as shown in FIGS. 1 and 4, the charging method of the present invention mainly causes the power supply device 1 to charge the rechargeable battery 21, and the value of the charging current of the power supply device 1 will be over time. Changing, forming a charging process similar to a sine wave (as indicated by the dashed line in FIG. 4), as shown in FIG. 6, after the applicant charges the rechargeable battery 21 by the charging method of the present invention, it can be easily found. During the charging process of the rechargeable battery 21 (for example, 30 minutes), the temperature change tends to be gentle, that is, the charging method of the present invention can actually reduce the temperature rise of the rechargeable battery 21 during charging, and, in addition, during the charging process described above. The plurality of interruption periods T2 existing in the medium can also effectively control the temperature rise of the rechargeable battery 21 during the charging process, and at the same time, when the electrolyte in the rechargeable battery 21 is performing an electrochemical reaction, the T2 can be charged during the interruption period. The battery 21 is given a rest period so that a portion having a high concentration in the internal electrolyte can flow to a portion having a low concentration, thereby allowing the internal electrolyte concentration of the rechargeable battery 21 to be uniform, so that the charging efficiency of the rechargeable battery 21 can be improved. .

In addition, referring to FIGS. 1 and 4, in the foregoing embodiment, two attenuation current values D1 and D2 and two regulated current values U1 and U2 are taken as an example, but in the embodiment of the present invention, Without limitation, the operator can provide one or more attenuation current values between the first current value H1 and the second current value H2 according to the charging demand, as long as the attenuation current values are the first The attenuation current value is smaller than the first current value H1, the second attenuation current value is less than the first attenuation current value, and so on, until the last attenuation current value is greater than the second current value H2, and the attenuation current values are The transmission may continue and sequentially continue the charging period T1 and the interruption period T2; similarly, between the second current value H2 and the next first current value H1, one or more adjustment currents may be provided. The value, as long as the value of the boosted current, the first boosted current value is greater than the second current value H2, the second boosted current value is greater than the first boosted current value, and so on, until the last one The rising current value is less than the next first current value H1, and the boosting power is increased The transmission of the value may be continued and the charging period T1 and the interruption period T2 may be sequentially continued; thus, since the charging current of the power supply device 1 can form a charging process similar to a sine wave, and there are multiple interruption periods in the charging process, it can be avoided. The temperature of the rechargeable battery 21 is too high, and the service life of the electronic component (such as the state of FIG. 2) or the other power component of the power supply device 1 (such as the state of FIG. 3) adjacent to the rechargeable battery 21 is negative. influences.

The above is only the preferred embodiment of the present invention, but the scope of the claims of the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily considered are within the scope of protection of the invention.

H1‧‧‧First current value

H2‧‧‧second current value

T1‧‧‧Charging period

T2‧‧‧ interruption period

D1‧‧‧First decay current value

D2‧‧‧second decay current value

U1‧‧‧ first adjustable current value

U2‧‧‧second adjustment current value

Claims (4)

A sinusoidal charging method capable of regularly adjusting a charging current value is applied to a power supply device, wherein a charging circuit of the power supply device is electrically connected to a charging battery, wherein the charging terminal of the charging circuit is respectively associated with the charging circuit The two electrode ends of the rechargeable battery are electrically connected to regularly transmit the current value received by the charging circuit to the rechargeable battery, and the method is such that one of the charging management controllers on the charging circuit performs the following steps: Transmitting a current value to the rechargeable battery, and after continuing for a charging period, interrupting transmitting the first current value for an interruption period; sequentially transmitting a plurality of attenuation current values to the rechargeable battery, wherein the first The attenuation current value is less than the first current value, the second attenuation current value is less than the first attenuation current value, and so on, and the transmission of the attenuation current values respectively and sequentially continues the charging period and the interruption Transmitting a second current value to the rechargeable battery, the second current value is less than a last decay current value, and the second current value is transmitted sequentially Continuing the charging period and the interruption period; sequentially transmitting a plurality of up-regulated current values to the rechargeable battery, wherein the first boosting current value is greater than the second current value, and the second boosting current value is greater than The first boosted current value, and so on, are both smaller than the first current value, and the transmission of the boosted current values respectively and sequentially continues the charging period and the interruption period; and repeating the first A current value, the attenuating current value, the second current value, and the adjusted current values are respectively transmitted to the rechargeable battery in sequence, and the rechargeable battery is charged until the charged battery is saturated. The sine wave charging method of claim 1, wherein the charging period is equal to the interruption period. The sine wave charging method of claim 1, wherein the charging period is greater than the interruption period. The sine wave charging method of claim 1, wherein the charging period is less than the interruption period.