CN112622677A - Charger and charging method thereof - Google Patents

Abstract

The invention relates to a charger, which comprises a charging control circuit, wherein the charging control circuit comprises a controller, a battery parameter information acquisition circuit and a charging circuit, wherein the battery parameter information acquisition circuit is used for acquiring the current parameters of a battery. The invention also provides a battery charging method. The charging method and the charging device can dynamically adjust the charging method of the battery according to the using state of the battery.

Description

Charger and charging method thereof

Technical Field

The invention relates to the field of chargers.

Background

At present, in the process of charging the battery of the electric vehicle, for example, when the battery is charged through a charging pile, a fixed charging program is usually arranged in the charging pile, and when a user charges the battery, the user cannot select a proper charging program. In addition, some charging pile users can perform limited selection, on one hand, the users need to be professional, and on the other hand, the charging requirements of the batteries in different use states cannot be completely met through the limited selection.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a charger, including a charging control circuit, where the charging control circuit includes a controller, a battery parameter information obtaining circuit for obtaining a current parameter of a battery, and a charging circuit, and is characterized in that the charging control circuit is a charging control circuit for controlling the charging circuit to charge the battery in a specific charging mode according to the current parameter of the battery obtained by the battery parameter information obtaining circuit.

Further, the charging control circuit comprises a charging mode algorithm circuit, and after the charging mode algorithm circuit operates the acquired current parameter of the battery, the charging control circuit controls the charging circuit to charge the battery in a specific charging mode.

Further, the current parameter of the battery obtained by the battery parameter information obtaining circuit is a parameter capable of obtaining the current discharge capacity of the battery, and after the charging mode algorithm circuit calculates the current discharge capacity parameter of the battery, the charging control circuit outputs a specific charging capacity mode to charge the battery.

Further, the charging control circuit comprises a charging mode switching circuit, and the charging control circuit controls the charging circuit to charge the battery in a specific charging mode after controlling the charging mode switching circuit according to the acquired current parameter of the battery.

Furthermore, the current parameter of the battery obtained by the battery parameter information obtaining circuit is a parameter capable of obtaining the current discharge capacity of the battery, and the charging control circuit controls the charging circuit to output a specific charging capacity mode to charge the battery after controlling the charging mode switching circuit according to the current parameter of the battery.

Further, a ratio of the charge capacity to the discharge capacity is 1 or more.

The invention also protects a charging method of the charger.

The charger and the method can dynamically adjust the charging method of the battery according to the using state of the battery.

Drawings

FIG. 1 is a block circuit diagram of a first embodiment of the charger of the present invention;

FIG. 2 is a charging flow diagram of the first embodiment of the charger of the present invention;

FIG. 3 is a block circuit diagram of a second embodiment of the charger of the present invention;

FIG. 4 is a charging flow diagram of a second embodiment of the charger of the present invention;

FIG. 5 is a circuit diagram of a first embodiment of a charging mode switching circuit and a charging circuit of the charger of the present invention;

FIG. 6 is a circuit diagram of a second embodiment of a charging mode switching circuit and a charging circuit of the charger of the present invention;

fig. 7 is a circuit diagram of a charging mode switching circuit and a charging circuit of a charger according to a third embodiment of the invention.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

The present invention provides acharger 100, and thecharger 100 of the present invention may be implemented in the form of a charging post. As shown in fig. 1, thecharger 100 according to the first embodiment of the present invention includes acharging control circuit 10, wherein thecharging control circuit 10 includes a battery parameterinformation obtaining circuit 1, a controller 2, acharging circuit 3 and an algorithm circuit 4, which are preferably used for obtaining current parameters of a battery, the battery parameterinformation obtaining circuit 1, thecharging circuit 3 and the algorithm circuit 4 are respectively electrically connected to the controller 2, and a rechargeable battery of an external electric bicycle is connected to thecharging control circuit 10 by a wired or wireless connection to realize data exchange and charging. The battery parameterinformation acquiring circuit 1 is used for acquiring current parameters of the battery to be charged, and the controller 2 controls thecharging circuit 3 to charge the battery to be charged in a specific charging mode through the algorithm circuit 4.

As shown in fig. 2, the charging method of thecharger 100 according to the first embodiment of the present invention is as follows: after the current parameter of the battery obtained by the battery parameterinformation obtaining circuit 1 and the current discharging parameter of the battery are calculated by the charging mode algorithm circuit 4, the controller 2 of thecharging control circuit 10 controls thecharging circuit 3 to output a specific charging mode to charge the battery according to the calculation result.

As shown in fig. 3, the charger according to the second embodiment of the present invention is different from the charger according to the first embodiment in that the algorithm circuit 4 is replaced with a chargemode switching circuit 5, and the other steps are the same. The battery parameterinformation obtaining circuit 1 is used for obtaining the current parameter of the battery to be charged, and the controller 2 of thecharging control circuit 10 controls the chargingmode switching circuit 5 according to the obtained parameter, and controls thecharging circuit 3 to charge the battery to be charged in a specific charging mode.

In the embodiment of the present invention, the specific charging mode of thecharging circuit 3 refers to a specific charging curve, and the controller 2 can adjust the charging curve that best conforms to the charging of the rechargeable battery according to the current parameters of the battery to be charged, thereby achieving the charging safety and the charging efficiency of the battery.

In the embodiment of the present invention, in order to further realize safe and efficient charging, the current parameter of the battery is preferably the parameter that can calculate the discharge capacity of the battery, and the controller 2 of thecharging control circuit 10 controls thecharging circuit 3 to output a specific charging capacity mode to charge the battery. The ratio of the charging capacity of the battery to be charged to the discharging capacity calculated by the current parameter is more than or equal to 1, and the charging capacity is preferably slightly higher than the discharging capacity, so that the energy conservation can be better realized. The battery current parameter information is parameter information when the battery starts to be charged.

As shown in fig. 5 to 7, the chargingmode switching circuit 5 and thecharging circuit 3 of the charger according to the second embodiment of the present invention are circuit diagrams, and the rechargeable battery is electrically connected to the charger through an external port of the charger. As shown in fig. 5, there are a plurality of, for example, 3 rechargeable batteries, and the rechargeable batteries are charged through the external charging port of the charger and through the chargingmode switching circuit 5 and thecharging circuit 3, because different rechargeable batteries have different state parameters when starting to charge, according to the obtained different state parameters, the controller 2 of thecharging control circuit 10 controls the chargingmode switching circuit 5, so that thecharging circuit 3 charges different batteries in different charging modes, and through the chargingmode switching circuit 5, the charging parameter values of thecharging circuit 3, such as the current magnitude and the charging time, can be intelligently distributed, on one hand, the charging capability of thecharging circuit 3 is fully utilized, and on the other hand, the rechargeable batteries can be charged in a reasonable charging mode. As shown in fig. 6, the charger of the present invention can also charge a plurality of rechargeable batteries through a plurality of, for example, 3 chargingmode switching circuits 5a, 5b, 5c and a plurality of, for example, 3charging circuits 3a, 3b, 3c, all of the rechargeable batteries are respectively connected to thecharging circuits 3a, 3b, 3c through the charging mode switchingcircuits 5a, 5b, 5c, and similarly, the charging parameter values of thecharging circuits 3a, 3b, 3c can be intelligently distributed through the chargingmode switching circuits 5a, 5b, 5c, and in addition, since one charging circuit is used, the requirement for charging is high, the manufacturing cost is high, and by using a plurality ofcharging circuits 3a, 3b, 3c, the manufacturing requirement of the charging circuits can be appropriately reduced, thereby achieving the cost reduction, and also reducing the operating temperature, and ensuring the charging safety. As shown in fig. 7, the charger of the present invention can also charge one battery by a plurality of charging mode switchingcircuits 5a, 5b, 5c and a plurality ofcharging circuits 3a, 3b, 3 c.

Also, the circuit diagrams of the arithmetic circuit 4 and thecharging circuit 3 of the charger of the first embodiment of the present invention may be similar to those of the second embodiment, and the corresponding object can be achieved by replacing the charging mode switching circuit with the arithmetic circuit.

In addition, the number of thecharging circuit 3, the chargingmode switching circuit 5, the charging mode algorithm circuit 4 and the external charging ports of the present invention can be arbitrarily combined as required. Therefore, intelligent charging of different batteries at the same time can be realized. By acquiring the current parameter information of the battery, the charging mode matched with the rechargeable battery can be accurately and reliably selected.

The charger of the present invention may be in the form of a charging post.

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 (10)

1. A charger comprises a charging control circuit, wherein the charging control circuit comprises a controller, a battery parameter information acquisition circuit and a charging circuit, and the battery parameter information acquisition circuit is used for acquiring the current parameters of a battery.

2. The charger of claim 1, wherein said charge control circuit comprises a charge mode algorithm circuit, said charge mode algorithm circuit operating on said acquired current parameter of said battery, said charge control circuit controlling said charge circuit to charge said battery in a specific charge mode.

3. The charger according to claim 2, wherein the current parameter of the battery obtained by the battery parameter information obtaining circuit is a parameter for obtaining the current discharge capacity of the battery, and after the charging mode algorithm circuit calculates the current discharge capacity parameter of the battery, the charging control circuit outputs a specific charging capacity mode to charge the battery.

4. The charger according to claim 1, wherein said charge control circuit comprises a charge mode switching circuit, said charge control circuit controls said charge mode switching circuit according to the acquired current parameter of said battery, and then controls said charge circuit to charge said battery in a specific charge mode.

5. The charger according to claim 4, wherein the current parameter of the battery obtained by the battery parameter information obtaining circuit is a parameter for obtaining a current discharge capacity of the battery, and the charge control circuit controls the charge mode switching circuit according to the current parameter of the battery, and then controls the charge circuit to output a specific charge capacity mode for charging the battery.

6. A charger according to claim 3 or 5, wherein the ratio of said charging capacity to said discharging capacity is 1 or more.

7. A charging method of a charger, the charger comprising a charging control circuit, the charging control circuit comprising a controller, a battery parameter information acquisition circuit for acquiring a current parameter of a battery, and a charging circuit, the method comprising: and acquiring the current parameters of the rechargeable battery, and controlling the charging circuit to charge the battery in a specific charging mode by the charging control circuit according to the acquired current parameters of the rechargeable battery.

8. The method as claimed in claim 7, wherein the charging control circuit further comprises a charging mode algorithm circuit, and the charging control circuit controls the charging circuit to charge the battery in a specific charging mode after the charging mode algorithm circuit operates the acquired current parameter of the battery.

9. The method as claimed in claim 7, wherein the charging control circuit further comprises a charging mode switching circuit, and wherein the charging control circuit controls the charging circuit to charge the battery in a specific charging mode after controlling the charging mode switching circuit according to the current parameter of the battery.

10. A charging method of a charger as claimed in any one of claims 7 to 9, wherein the current parameter of the rechargeable battery is a parameter for obtaining the current discharge capacity of the battery, and the charging control circuit is configured to output a specific charging capacity pattern to charge the battery.

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