CN106876816B - Charging method and charging system - Google Patents
Charging method and charging system Download PDFInfo
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- CN106876816B CN106876816B CN201710161515.3A CN201710161515A CN106876816B CN 106876816 B CN106876816 B CN 106876816B CN 201710161515 A CN201710161515 A CN 201710161515A CN 106876816 B CN106876816 B CN 106876816B
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- 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
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- H02J7/865—
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
本发明揭示了一种充电方法和充电系统，所述方法包括以下步骤：充电时，判断电池的第一连接端口是否正在放电；其中，电池还具有第二连接端口，电池包括并联的第一电芯和第二电芯，第一电芯连接第一连接端口，第二电芯连接第二连接端口；当第一连接端口正在放电时，断开第一电芯与第二电芯的连接，并通过第二连接端口对电池充电；当第一连接端口没有放电时，连接第一电芯与第二电芯，并通过第二连接端口对电池充电。从而，使得连接一个连接端口的用电系统与连接另一个连接端口的充电管理模块被电池隔开，分置于电池两端，避免了两大发热源的热量叠加而导致局部过热，有利于快速散热，进而可以提高充电电流，加快充电速度。
The invention discloses a charging method and a charging system. The method includes the following steps: during charging, judging whether a first connection port of a battery is being discharged; wherein, the battery further has a second connection port, and the battery includes a first battery connected in parallel. The first cell is connected to the first connection port, and the second cell is connected to the second connection port; when the first connection port is discharging, the connection between the first cell and the second cell is disconnected, The battery is charged through the second connection port; when the first connection port is not discharged, the first battery core and the second battery core are connected, and the battery is charged through the second connection port. Therefore, the power system connected to one connection port and the charging management module connected to the other connection port are separated by the battery and placed at both ends of the battery, avoiding the superposition of the heat of the two major heat sources and causing local overheating, which is conducive to rapid Heat dissipation, which in turn can increase the charging current and speed up the charging speed.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a charging method and a charging system.
Background
As shown in fig. 1, a charging system of a mobile terminal such as a mobile phone includes a battery and a charging management module, where the battery has only one connection port, and the charging management module is connected to the connection port, and charges the battery through the connection port, and discharges the battery through the connection port. The charging management module is also connected with a charging system to supply power to the power utilization system.
The layout structures of the charging system and the power utilization system of the mobile terminal are generally shown in fig. 2, and because the battery has only one connection port, the charging management module and the power utilization system need to transmit or receive power through the same connection port on the battery. Considering the principle of shortest current path, the charging management module and the power system need to be as close to the battery as possible, so that the layout of the charging management module and the power system is limited, and the charging management module and the power system are necessarily close to each other. Like this two heat sources (charge management module and power consumption system) heat superpose together and lead to local overheat for mobile terminal's temperature risees rapidly, influences user experience on the one hand, and on the other hand makes charging current can't further improve, and then can't further improve the speed of charging.
Disclosure of Invention
The invention mainly aims to provide a charging method and a charging system, and aims to solve the technical problem of local overheating during terminal charging.
To achieve the above object, the present invention provides a charging method, comprising the following steps:
during charging, judging whether a first connection port of the battery is discharging; the battery also comprises a second connection port, the battery comprises a first battery cell and a second battery cell which are connected in parallel, the first battery cell is connected with the first connection port, and the second battery cell is connected with the second connection port;
when the first connection port is discharging, disconnecting the first battery cell from the second battery cell, and charging the battery through the second connection port;
and when the first connection port is not discharged, connecting the first battery cell with the second battery cell, and charging the battery through the second connection port.
Optionally, the method further comprises:
when power is supplied, whether the battery is charging is judged;
when the battery is being charged, the first battery cell is disconnected from the second battery cell, and the external discharge is performed through the first connection port of the battery.
Optionally, the step of determining whether the battery is being charged further includes:
when the battery is not charged, the first battery cell and the second battery cell are connected, and the first connection port of the battery is used for discharging.
Optionally, the step of determining whether the battery is being charged further includes:
when the battery is not charged, the battery is directly discharged to the outside through the first connection port of the battery.
Optionally, the step of discharging to the outside directly through the first connection port of the battery further includes:
judging whether the electric quantity of the first battery cell is lower than an electric quantity threshold value;
when the electric quantity of the first battery cell is lower than an electric quantity threshold value, connecting the first battery cell with the second battery cell.
Optionally, after the step of disconnecting the first battery cell from the second battery cell and discharging to the outside through the first connection port of the battery, the method further includes: and when the charging is finished, connecting the first battery cell and the second battery cell.
Optionally, after the step of disconnecting the first battery cell from the second battery cell and charging the battery through the second connection port, the method further includes:
and when the first connection port stops discharging, connecting the first battery cell with the second battery cell.
Optionally, the step of disconnecting the first cell from the second cell includes:
judging whether a positive electrode connecting path of the first battery cell and the second battery cell is in a connection state;
and when the positive electrode connecting path is in the on state, cutting off the positive electrode connecting path.
Optionally, the step of disconnecting the first cell from the second cell includes:
judging whether a negative electrode connecting path of the first battery cell and the second battery cell is in a connection state;
and when the negative electrode connecting path is in the on state, cutting off the negative electrode connecting path.
Optionally, the step of connecting the first cell and the second cell includes:
judging whether a positive electrode connecting path of the first battery cell and the second battery cell is in a disconnected state;
and when the positive electrode connecting path is in a disconnected state, the positive electrode connecting path is connected.
Optionally, the step of connecting the first cell and the second cell includes:
judging whether a negative electrode connecting path of the first battery cell and the second battery cell is in a disconnected state;
and when the negative electrode connecting path is in an off state, the negative electrode connecting path is switched on.
Optionally, the first connection port and the second connection port are respectively disposed at two opposite ends of the battery.
The invention also provides a charging system, which comprises:
the battery is provided with a first connection port and a second connection port and comprises a first battery cell and a second battery cell which are connected in parallel and a parallel switch circuit connected between the first battery cell and the second battery cell, wherein the first battery cell is connected with the first connection port, and the second battery cell is connected with the second connection port;
the power supply module is connected with the first connection port of the battery;
the charging management module is connected with the second connecting port of the battery and is externally connected with a charger;
the control module is respectively connected with the parallel switch circuit, the power supply module and the charging management module;
the control module includes a charging control module, the charging control module including:
the first judgment unit is used for judging whether the first connection port of the battery is discharging or not when receiving the charging request of the charging management module;
the charging processing unit is used for controlling the parallel switch circuit to disconnect the first battery core from the second battery core and controlling the charging management module to charge the battery through the second connection port when the first connection port is discharging; when the first connection port is not discharged, the parallel switch circuit is controlled to connect the first battery cell and the second battery cell, and the charging management module is controlled to charge the battery through the second connection port.
Optionally, the control module further comprises a power supply control module comprising:
the second judgment unit is used for judging whether the battery is charging or not when receiving a power supply request of an electric system;
and the power supply processing unit is used for controlling the parallel switch circuit to disconnect the first battery cell from the second battery cell and controlling the power supply module to supply power to the power utilization system when the battery is being charged, so that the first connection port of the battery discharges outwards.
Optionally, the power supply processing unit is further configured to:
when the battery is not charged, the parallel switch circuit is controlled to connect the first battery cell and the second battery cell, and the power supply module is controlled to supply power to the power utilization system, so that the first connection port of the battery discharges outwards.
Optionally, the power supply processing unit is further configured to:
when the battery is not charged, the power supply module is directly controlled to supply power to the power utilization system, so that the first connection port of the battery is discharged outwards.
Optionally, the power supply processing unit is further configured to:
after the power supply module is directly controlled to supply power to the power utilization system, whether the electric quantity of the first battery cell is lower than an electric quantity threshold value is judged; and when the electric quantity of the first battery cell is lower than an electric quantity threshold value, controlling the parallel switch circuit to connect the first battery cell and the second battery cell.
Optionally, the power supply processing unit is further configured to: and when the charging is finished, controlling the parallel switch circuit to connect the first battery cell and the second battery cell.
Optionally, the charging processing unit is further configured to:
and when the first connection port stops discharging, controlling the parallel switch circuit to connect the first battery cell and the second battery cell.
Optionally, the parallel switch circuit is connected to a positive connection circuit of the first battery cell and the second battery cell, and the charge processing unit is configured to:
when the first connection port is discharging, judging whether the anode connection path is in a connection state;
and when the positive electrode connecting path is in a connection state, controlling the parallel switch circuit to cut off the positive electrode connecting path.
Optionally, the parallel switch circuit is connected to a negative connection circuit of the first battery cell and the second battery cell, and the charge processing unit is configured to:
when the first connection port is discharging, judging whether the negative connection path is in a connection state;
and when the negative pole connecting passage is in a connection state, controlling the parallel switch circuit to cut off the negative pole connecting passage.
Optionally, the parallel switch circuit is connected to a positive connection circuit of the first battery cell and the second battery cell, and the charge processing unit is configured to:
when the first connection port is not discharged, judging whether the anode connection path is in a disconnected state;
and when the positive pole connecting path is in a disconnected state, controlling the parallel switch circuit to connect the positive pole connecting path.
Optionally, the parallel switch circuit is connected to a negative connection circuit of the first battery cell and the second battery cell, and the charge processing unit is configured to:
when the first connection port is not discharged, judging whether the negative connection path is in a disconnected state;
and when the negative pole connecting passage is in an off state, controlling the parallel switch circuit to switch on the negative pole connecting passage.
The present invention also provides a terminal device, including:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the aforementioned charging method.
The two connection ports are respectively used for charging and discharging by arranging the two battery cells and the connection ports respectively connected with the two battery cells, so that the two connection ports of the battery can be respectively arranged at the two ends of the battery, and therefore, an electric system connected with one connection port and a charging management module connected with the other connection port are separated by the battery and are respectively arranged at the two ends of the battery, local overheating caused by superposition of heat of two large heating sources is avoided, the heat is dispersed in different areas, rapid heat dissipation is facilitated, charging current can be improved, and charging speed is accelerated.
Moreover, the charging management module and the power utilization system are not limited in layout, and the charging management module can be placed at a position as close to the charging port (the second connecting port) as possible, so that the impedance of a charging path is reduced, the charging efficiency is improved, and the charging speed is accelerated by adopting a large-current charging scheme.
Drawings
FIG. 1 is a block schematic diagram of a prior art charging system;
fig. 2 is a schematic layout structure of a charging system and a power utilization system of a mobile terminal in the prior art;
fig. 3 is a schematic structural view of a battery in an embodiment of the invention;
fig. 4 is a schematic layout structure of a charging system and a power utilization system of a terminal device in an embodiment of the present invention;
fig. 5 is a flowchart of a charging method of the first embodiment of the present invention;
FIG. 6 is a flow chart of an embodiment of the present invention for powering a powered system;
FIG. 7 is another flow chart of the present invention embodiment for powering a powered system;
fig. 8 is a block diagram of a charging system according to a second embodiment of the present invention;
FIG. 9 is a block schematic diagram of the control module of FIG. 8;
FIG. 10 is a block schematic diagram of the charging control module of FIG. 9;
fig. 11 is a block schematic diagram of the power supply control module of fig. 9.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As will be appreciated by those skilled in the art, "terminal" as used herein includes both devices that are wireless signal receivers, devices that have only wireless signal receivers without transmit capability, and devices that include receive and transmit hardware, devices that have receive and transmit hardware capable of performing two-way communication over a two-way communication link. Such a device may include: a cellular or other communication device having a single line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications Service), which may combine voice, data processing, facsimile and/or data communication capabilities; a PDA (Personal Digital Assistant), which may include a radio frequency receiver, a pager, internet/intranet access, a web browser, a notepad, a calendar and/or a GPS (Global Positioning System) receiver; a conventional laptop and/or palmtop computer or other device having and/or including a radio frequency receiver. As used herein, a "terminal" or "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space. As used herein, a "terminal Device" may also be a communication terminal, a web terminal, a music/video playing terminal, such as a PDA, an MID (Mobile Internet Device) and/or a Mobile phone with music/video playing function, or a smart tv, a set-top box, etc.
Example one
In the embodiment of the invention, as shown in fig. 3, the battery is improved and modified into a controllable two-parallel battery. The battery has a first connection port (P1+, P1-) and a second connection port (P2+, P2-), and the battery comprises a first cell and a second cell connected in parallel and a parallel switch circuit connected between the first cell and the second cell. The parallel switch circuit may be connected to a positive connection path or a negative connection path of the first cell and the second cell, where the positive connection path is a connection path of a positive electrode B1+ of the first cell and a positive electrode B2+ of the second cell, and the negative connection path is a connection path of a negative electrode B1-of the first cell and a negative electrode B2-of the second cell. The first battery cell is connected with a first connection port (P1+, P1-), preferably, the first battery cell is connected with the first connection port (P1+, P1-), and the first connection port (P1+, P1-) is used for discharging to the outside so as to supply power to an electric system of the terminal equipment. The second cell is preferably connected to a second connection port (P2+, P2-), and the second cell is preferably connected to a second connection port (P2+, P2-) via a second protection circuit, and the second connection port (P2+, P2-) is connected to a charging management module of the terminal device, so that the charging management module charges the battery via the second connection port (P2+, P2-). That is, the first connection port (P1+, P1-) of the battery is used for power supply, and the second connection port (P2+, P2-) is used for charging.
Because the battery supplies power and charges to two different ports, so can set up first connection port and second connection port respectively in battery both ends, like adjacent both ends or relative both ends to can avoid charging management module and power consumption system layout and lead to the heat to concentrate.
As shown in fig. 4, taking the terminal device as a mobile phone as an example, the first connection port and the second connection port of the battery can be respectively disposed at two opposite ends of the battery, so that the power utilization system connected to the first connection port and the charging management module connected to the second connection port are separated by the battery and are disposed at two ends of the battery, thereby avoiding local overheating caused by heat superposition of two heat sources, dispersing the heat in different areas, facilitating quick heat dissipation, further improving charging current and accelerating charging speed.
Moreover, the charging management module and the power utilization system are not limited in layout, and the charging management module can be placed at a position as close to the charging port (the second connecting port) as possible, so that the impedance of a charging path is reduced, the charging efficiency is improved, and the charging speed is accelerated by adopting a large-current charging scheme.
Referring to fig. 5, a charging method according to a first embodiment of the present invention is proposed based on the above-described modified battery, the method including the steps of:
and S11, judging whether the first connection port of the battery is discharging or not during charging. When the first connection port is discharging, go to step S12; when the first connection port is not discharged, the process proceeds to step S13.
In step S11, when the terminal device detects that a valid adapter (charger) is connected to the charging interface, the charging process is started, and it is immediately determined whether the first connection port of the battery is discharging. In specific implementation, the terminal device may determine whether the first connection port of the battery is discharging by:
optionally, whether the first connection port has current output or whether the first connection port has current output larger than a preset current value is detected, if so, it is determined that the first connection port is discharging, otherwise, it is determined that the first connection port is not discharging.
Optionally, whether an application is currently running is detected, if so, it is determined that the first connection port is discharging, otherwise, it is determined that the first connection port is not discharging.
Those skilled in the art can understand that, in addition, other manners in the prior art can be adopted to determine whether the first connection port of the battery is discharging, and details are not repeated here.
And S12, disconnecting the first battery cell and the second battery cell of the battery, and charging the battery through the second connection port of the battery.
In step S12, when the first connection port of the battery is discharging, the terminal device first disconnects the first electric core of the battery from the second electric core, and then charges the second electric core of the battery through the second connection port of the battery, and the first electric core of the battery continues to discharge through the first port, so that charging and power supply are performed simultaneously, and the charging and the power supply are independent of each other and do not interfere with each other.
In specific implementation, the terminal device may disconnect the connection between the first battery cell and the second battery cell of the battery in the following manner:
optionally, when the parallel switch circuit is connected to the positive connection path of the first battery cell and the second battery cell, the terminal device first determines whether the positive connection path of the first battery cell and the second battery cell is in an on state (e.g., detects whether the parallel switch circuit is in the on state); cutting off the positive electrode connecting path when the positive electrode connecting path is in the on state; when the positive electrode connection path is in the disconnected state, no action is performed, and the disconnected state is maintained.
Optionally, when the parallel switch circuit is connected to the negative connection path of the first battery cell and the second battery cell, the terminal device first determines whether the negative connection path of the first battery cell and the second battery cell is in an on state (e.g., detects whether the parallel switch circuit is in the on state); cutting off the negative electrode connection path when the negative electrode connection path is in the on state; when the negative connection path is in the disconnected state, no action is performed, and the disconnected state is maintained.
Further, when the first connection port stops discharging, that is, the power system is no longer supplied with power, the terminal device connects the first battery cell and the second battery cell to charge the first battery cell and the second battery cell simultaneously.
And S13, connecting the first battery cell and the second battery cell of the battery, and charging the battery through the second connection port of the battery.
In step S13, when the first connection port of the battery is not discharged, the terminal device first connects the first cell and the second cell of the battery, and then charges the first cell and the second cell of the battery through the second connection port of the battery at the same time.
In specific implementation, the terminal device may connect the first electric core and the second electric core of the battery in the following manner:
optionally, when the parallel switch circuit is connected to the positive connection path of the first battery cell and the second battery cell, the terminal device first determines whether the positive connection path of the first battery cell and the second battery cell is in an off state (e.g., detects whether the parallel switch circuit is in the off state); when the positive electrode connecting path is in a disconnected state, the positive electrode connecting path is connected; when the positive electrode connection path is in the on state, no action is performed and the on state is maintained.
Optionally, when the parallel switch circuit is connected to the negative connection path of the first battery cell and the second battery cell, the terminal device first determines whether the negative connection path of the first battery cell and the second battery cell is in an off state (e.g., detects whether the parallel switch circuit is in the off state); when the negative electrode connecting path is in an off state, the negative electrode connecting path is switched on; when the negative electrode connection path is in the on state, no action is performed and the on state is maintained.
In the embodiment of the invention, when calculating the electric quantity G of the whole system, the electric quantity G1 discharged from the first port (P1+ P1-) can be measured by the electric quantity meter 1, the electric quantity G2 charged from the second port (P2+ P2-) can be measured by the electric quantity meter 2, and then the electric quantity of the whole system can be calculated by the formula G2-G1.
Further, when receiving a power supply request of the power consumption system, the terminal device may start a power supply process to supply power to the power consumption system in the following manner:
as shown in fig. 6, the terminal device may perform power supply by the following steps:
and S101, judging whether the battery is charged or not during power supply. When the battery is being charged, step S102 is performed; when the battery is not charged, step S103 is performed.
In step S101, when the terminal device receives a power supply request from the power consumption system, it immediately determines whether the battery is being charged. In specific implementation, whether the battery is being charged can be judged by detecting whether the charging interface is connected with the charger or not, whether the second connection port of the battery has current input or not, and the like, or by combining at least two modes. For example, when the second connection port of the battery has current input, it is determined that the battery is being charged, otherwise it is determined that the battery is not charged.
And S102, disconnecting the first battery cell from the second battery cell, and discharging to the outside through the first connection port of the battery.
In step S102, when the battery is being charged, the terminal device first disconnects the first electrical core and the second electrical core of the battery, and then discharges electricity to the outside through the first connection port of the battery, that is, the first electrical core is used to supply power to the power consumption system, and meanwhile, the second electrical core of the battery continues to be charged through the second connection port, so that charging and power supply are performed simultaneously, and the charging and power supply are independent and do not interfere with each other.
The specific manner in which the terminal device disconnects the first electric core and the second electric core of the battery is the same as that in step S12 in the foregoing charging process, and details are not repeated here.
Further, in the discharging process, the charging state of the battery is continuously detected, and when the charging is detected to be finished, the terminal device is connected with the first battery cell and the second battery cell so as to supply power to the power consumption system by using the first battery cell and the second battery cell simultaneously, thereby preventing the electric quantity of the first battery cell from being exhausted.
S103, connecting the first battery cell with the second battery cell, and discharging outwards through a first connection port of the battery.
In step S103, when the battery is not charged, the terminal device first connects the first electric core and the second electric core of the battery, and then discharges electricity to the outside through the first connection port of the battery, that is, the first electric core and the second electric core are simultaneously used to supply power to the power consumption system.
The specific manner of connecting the first electric core and the second electric core of the battery by the terminal device is the same as that of step S13 in the foregoing charging process, and is not described herein again.
As shown in fig. 7, the terminal device may further perform power supply by using the following steps:
s201, judging whether the battery is charged or not when power is supplied. When the battery is being charged, step S202 is performed; when the battery is not charged, step S203 is performed.
In step S201, when the terminal device receives a power supply request from the power consumption system, it immediately determines whether the battery is being charged. In specific implementation, whether the battery is being charged can be judged by detecting whether the charging interface is connected with the charger or not, whether the second connection port of the battery has current input or not, and the like, or by combining at least two modes. For example, when the second connection port of the battery has current input, it is determined that the battery is being charged, otherwise it is determined that the battery is not charged.
S202, disconnecting the first battery cell from the second battery cell, and discharging to the outside through the first connection port of the battery.
In step S202, when the battery is being charged, the terminal device first disconnects the first electrical core and the second electrical core of the battery, then discharges electricity to the outside through the first connection port of the battery, that is, supplies power to the power consumption system, and continues to charge the second electrical core of the battery through the second connection port, so that the charging and the power supply are performed simultaneously, and the charging and the power supply are independent and do not interfere with each other.
The specific manner in which the terminal device disconnects the first electric core and the second electric core of the battery is the same as that in step S12 in the foregoing charging process, and details are not repeated here.
Further, in the discharging process, the charging state of the battery is continuously detected, and when the charging is finished, the terminal device is connected with the first battery cell and the second battery cell so as to supply power to the power consumption system by using the first battery cell and the second battery cell simultaneously, thereby preventing the electric quantity of the first battery cell from being exhausted.
And S203, directly discharging to the outside through the first connection port of the battery.
In step S203, when the battery is not charged, the terminal device immediately discharges electricity through the first connection port of the battery, that is, supplies power to the power consumption system.
Further, in the process of discharging to the outside through the first connection port of the battery, detecting the remaining electric quantity of the first battery cell, and judging whether the electric quantity of the first battery cell is lower than an electric quantity threshold value; when the electric quantity of the first battery cell is lower than the electric quantity threshold value, the first battery cell and the second battery cell are connected, so that the first battery cell and the second battery cell are simultaneously utilized to supply power to the power consumption system, and the electric quantity of the first battery cell is prevented from being exhausted. The power threshold can be set according to needs, such as 10% -50%.
The specific manner of connecting the first electric core and the second electric core of the battery by the terminal device is the same as that of step S13 in the foregoing charging process, and is not described herein again.
According to the charging method provided by the embodiment of the invention, the two electric cores and the connecting ports which are respectively connected with the two electric cores are arranged for the battery, and the two connecting ports are respectively used for charging and discharging, so that the two connecting ports of the battery can be respectively arranged at the two ends of the battery, and therefore, an electric system connected with one connecting port and a charging management module connected with the other connecting port are separated by the battery and are respectively arranged at the two ends of the battery, so that the local overheating caused by the superposition of heat of two large heating sources is avoided, the heat is dispersed in different areas, the quick heat dissipation is facilitated, the charging current can be improved, and the charging speed is accelerated.
Moreover, the charging management module and the power utilization system are not limited in layout, and the charging management module can be placed at a position as close to the charging port (the second connecting port) as possible, so that the impedance of a charging path is reduced, the charging efficiency is improved, and the charging speed is accelerated by adopting a large-current charging scheme.
Example two
Referring to fig. 8, a charging system according to a second embodiment of the present invention is proposed, which includes a battery, a power supply module, a charge management module, and a control module.
The battery has a first connection port (P1+, P1-) and a second connection port (P2+, P2-) as shown in FIG. 3, and comprises a first cell and a second cell which are connected in parallel, and a parallel switch circuit connected between the first cell and the second cell, wherein the first cell is connected with the first connection port (P1+, P1-) and the second cell is connected with the second connection port (P2+, P2-). The power supply module is connected with a first connection port (P1+, P1-) of the battery; the charging management module is connected with a second connection port (P2+, P2-) of the battery and is externally connected with a charger; the control module is respectively connected with the parallel switch circuit of the battery, the power supply module and the charging management module.
As shown in fig. 9, the control module includes a charging control module for processing a charging process. As shown in fig. 10, the charging control module includes a first determination unit and a charging processing unit, wherein:
a first judgment unit: and the charging management module is used for judging whether the first connection port of the battery is discharging or not when receiving a charging request of the charging management module.
Specifically, when the charging management module is connected to the charger, the charging management module immediately sends a charging request to the control module through the signal line to notify the control module. The first judgment unit immediately judges whether the first connection port of the battery is discharging or not after receiving the charging request. In a specific implementation, the first determining unit may determine whether the first connection port of the battery is discharging by:
optionally, whether the power supply module is in a power supply state is detected, when the power supply module is in the power supply state, it is determined that the first connection port is discharging, otherwise, it is determined that the first connection port is not discharging.
Optionally, whether the first connection port has current output or whether the first connection port has current output larger than a preset current value is detected, if so, it is determined that the first connection port is discharging, otherwise, it is determined that the first connection port is not discharging.
Optionally, whether an application is currently running is detected, if so, it is determined that the first connection port is discharging, otherwise, it is determined that the first connection port is not discharging.
Those skilled in the art can understand that, in addition, other manners in the prior art can be adopted to determine whether the first connection port of the battery is discharging, and details are not repeated here.
A charging processing unit: the charging management module is used for controlling the parallel switch circuit to disconnect the first battery cell from the second battery cell and controlling the charging management module to charge the battery through the second connection port when the first connection port is discharging; when the first connection port is not discharged, the parallel switch circuit is controlled to connect the first battery cell and the second battery cell, and the charging management module is controlled to charge the battery through the second connection port.
Specifically, when the first connection port of the battery is discharging, the charging processing unit firstly sends a control signal to the parallel switch circuit to request the parallel switch circuit to disconnect the first electric core and the second electric core of the battery, and then feeds back the control signal to the charging management module to inform the charging management module of readiness, the charging management module charges the second electric core of the battery through the second connection port of the battery, and meanwhile, the battery continues to discharge outwards through the first port, namely, the first electric core of the battery is utilized to supply power to a power utilization system, so that the charging and the power supply are carried out simultaneously, and the charging and the power supply are mutually independent and do not interfere with each other.
In specific implementation, the charging processing unit may disconnect the connection between the first battery cell and the second battery cell of the battery in the following manner:
optionally, when the parallel switch circuit is connected to the positive connection path of the first battery cell and the second battery cell, the charging processing unit first determines whether the positive connection path of the first battery cell and the second battery cell is in an on state (e.g., detects whether the parallel switch circuit is in the on state); when the positive electrode connecting path is in a connection state, controlling the parallel switch circuit to cut off the positive electrode connecting path; when the positive electrode connection path is in the disconnected state, no action is performed, and the disconnected state is maintained.
Optionally, when the parallel switch circuit is connected to the negative connection path of the first battery cell and the second battery cell, the charging processing unit first determines whether the negative connection path of the first battery cell and the second battery cell is in an on state (e.g., detects whether the parallel switch circuit is in the on state); when the negative pole connecting path is in a connection state, controlling the parallel switch circuit to cut off the negative pole connecting path; when the negative connection path is in the disconnected state, no action is performed, and the disconnected state is maintained.
When the first connection port of the battery is not discharged, the charging processing unit firstly sends a control signal to the parallel switch circuit to require the parallel switch circuit to connect the first electric core and the second electric core of the battery, then feeds back the control signal to the charging management module to inform the charging management module of readiness, and the charging management module charges the first electric core and the second electric core of the battery simultaneously through the second connection port of the battery.
In specific implementation, the charging processing unit may connect the first electric core and the second electric core of the battery in the following manner:
optionally, when the parallel switch circuit is connected to the positive connection path of the first battery cell and the second battery cell, the charging processing unit first determines whether the positive connection path of the first battery cell and the second battery cell is in an off state (e.g., detects whether the parallel switch circuit is in the off state); when the positive electrode connecting path is in a disconnected state, the parallel circuit of the control switch is connected with the positive electrode connecting path; when the positive electrode connection path is in the on state, no action is performed and the on state is maintained.
Optionally, when the parallel switch circuit is connected to the negative connection path of the first battery cell and the second battery cell, the charging processing unit first determines whether the negative connection path of the first battery cell and the second battery cell is in an off state (e.g., detects whether the parallel switch circuit is in the off state); when the negative pole connecting path is in a disconnected state, the parallel circuit of the control switch is connected with the negative pole connecting path; when the negative electrode connection path is in the on state, no action is performed and the on state is maintained.
Further, after the charging processing unit controls the parallel switch circuit to disconnect the connection between the first battery cell and the second battery cell of the battery, when it is detected that the first connection port of the battery stops discharging, that is, the power supply module does not supply power to the power utilization system any more, the charging processing unit controls the parallel switch circuit to connect the first battery cell and the second battery cell, so that the charging management module charges the first battery cell and the second battery cell at the same time.
In the embodiment of the present invention, when calculating the electric quantity G of the whole system, the charging control module may first measure the discharging electric quantity G1 of the first port (P1+ P1-) through the electricity meter 1, measure the charging electric quantity G2 of the second port (P2+ P2-) through the electricity meter 2, and then calculate the electric quantity of the whole system through the formula G2-G1.
Further, as shown in fig. 9, the control module further includes a power supply control module, and the power supply control module is configured to process a power supply flow. As shown in fig. 11, the power supply control module includes a second determination unit and a power supply processing unit, wherein:
a second judgment unit: and the controller is used for judging whether the battery is charging or not when receiving a power supply request of the power utilization system.
Specifically, when the power utilization system needs to utilize power, a power supply request is sent to the power supply module, the power supply module forwards the power supply request to the power supply control module through the signal line, and after the power supply control module receives the power supply request, the second judgment unit immediately judges whether the battery is charging.
In specific implementation, the second determining unit may determine whether the battery is being charged by detecting whether the charging interface is connected to the charger, whether the second connection port of the battery has current input, whether the output end of the charging management module has current output, or a combination of at least two of the two manners. For example: when the second connecting port of the battery has current input, judging that the battery is charging; when the output end of the charging management module has current output, the battery is judged to be charging.
A power supply processing unit: and the power supply module is used for controlling the parallel switch circuit to disconnect the first battery cell from the second battery cell when the battery is being charged, and controlling the power supply module to supply power to the power utilization system so as to enable the first connection port of the battery to discharge outwards.
Specifically, when the battery is being charged, the power supply processing unit firstly sends a control signal to the parallel switch circuit, the parallel switch circuit is required to disconnect the connection between the first battery cell and the second battery cell of the battery, then the control signal is fed back to the power supply module, the power supply module is required to supply power to the power utilization system, so that the first connection port of the battery discharges outwards, the power utilization system is supplied with power by the first battery cell, meanwhile, the charging management module continues to charge the second battery cell of the battery through the second connection port, so that the charging and the power supply are carried out simultaneously, the charging and the power supply are independent of each other and do not interfere with each other.
The specific way of disconnecting the first electric core and the second electric core of the battery by the power supply processing unit is the same as the processing way of the charging processing unit, and is not described herein again.
Further, in the discharging process, the second judging unit continues to detect the charging state of the battery, and when the charging is detected to be finished, the power supply processing unit is connected with the first battery cell and the second battery cell so as to supply power to the power consumption system by using the first battery cell and the second battery cell simultaneously, and thus the electric quantity of the first battery cell is prevented from being exhausted. The specific way of connecting the power supply processing unit with the first electric core and the second electric core of the battery is the same as the processing way of the charging processing unit, and is not described herein again.
When the battery is not charged, the power supply processing unit may supply power in the following manner:
the first method is as follows: the power supply processing unit firstly controls the parallel switch circuit to connect the first battery cell and the second battery cell, and then controls the power supply module to supply power to the power utilization system, so that the first connection port of the battery discharges outwards, namely, the first battery cell and the second battery cell are simultaneously utilized to supply power to the power utilization system.
The second method comprises the following steps: the power supply processing unit directly controls the power supply module to supply power to the power utilization system so as to enable the first connection port of the battery to discharge outwards.
Further, when the power supply module is directly controlled to supply power to the power utilization system, the power supply processing unit also detects the residual electric quantity of the first battery cell and judges whether the electric quantity of the first battery cell is lower than an electric quantity threshold value; when the electric quantity of the first battery cell is lower than the electric quantity threshold value, the parallel switch circuit is controlled to be connected with the first battery cell and the second battery cell so as to simultaneously utilize the first battery cell and the second battery cell to supply power to the power consumption system, and the electric quantity of the first battery cell is prevented from being exhausted. The power threshold can be set according to needs, such as 10% -50%.
According to the charging system provided by the embodiment of the invention, the two electric cores and the connecting ports which are respectively connected with the two electric cores are arranged for the battery, and the two connecting ports are respectively used for charging and discharging, so that the two connecting ports of the battery can be respectively arranged at the two ends of the battery, and therefore, the power utilization system connected with one connecting port and the charging management module connected with the other connecting port are separated by the battery and are respectively arranged at the two ends of the battery, the local overheating caused by the superposition of heat of two large heating sources is avoided, the heat is dispersed in different areas, the quick heat dissipation is facilitated, the charging current can be further improved, and the charging speed is accelerated.
Moreover, the charging management module and the power utilization system are not limited in layout, and the charging management module can be placed at a position as close to the charging port (the second connecting port) as possible, so that the impedance of a charging path is reduced, the charging efficiency is improved, and the charging speed is accelerated by adopting a large-current charging scheme.
An embodiment of the present invention further provides a terminal device, where the terminal device includes: one or more processors; a memory; one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform a charging method. The charging method comprises the following steps: during charging, judging whether a first connection port of the battery is discharging; the battery also comprises a second connection port, the battery comprises a first battery cell and a second battery cell which are connected in parallel, the first battery cell is connected with the first connection port, and the second battery cell is connected with the second connection port; when the first connection port is discharging, disconnecting the first battery cell from the second battery cell, and charging the battery through the second connection port; and when the first connection port is not discharged, connecting the first battery cell with the second battery cell, and charging the battery through the second connection port. The charging method described in this embodiment is the charging method according to the above embodiment of the present invention, and is not described herein again.
Those skilled in the art will appreciate that the present invention includes apparatus directed to performing one or more of the operations described in the present application. These devices may be specially designed and manufactured for the required purposes, or they may comprise known devices in general-purpose computers. These devices have stored therein computer programs that are selectively activated or reconfigured. Such a computer program may be stored in a device (e.g., computer) readable medium, including, but not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magnetic-optical disks, ROMs (Read-Only memories), RAMs (random access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (Electrically Erasable Programmable Read-Only memories), flash memories, magnetic cards, or optical cards, or any type of media suitable for storing electronic instructions, and each coupled to a bus. That is, a readable medium includes any medium that stores or transmits information in a form readable by a device (e.g., a computer).
It will be understood by those within the art that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. Those skilled in the art will appreciate that the computer program instructions may be implemented by a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, implement the features specified in the block or blocks of the block diagrams and/or flowchart illustrations of the present disclosure.
Those of skill in the art will appreciate that various operations, methods, steps in the processes, acts, or solutions discussed in the present application may be alternated, modified, combined, or deleted. Further, various operations, methods, steps in the flows, which have been discussed in the present application, may be interchanged, modified, rearranged, decomposed, combined, or eliminated. Further, steps, measures, schemes in the various operations, methods, procedures disclosed in the prior art and the present invention can also be alternated, changed, rearranged, decomposed, combined, or deleted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method of charging, comprising the steps of:
during charging, judging whether a first connection port of the battery is discharging; the battery also has a second connection port, the battery includes a first battery cell and a second battery cell connected in parallel and a parallel switch circuit connected between the first battery cell and the second battery cell, the parallel switch circuit is connected to a positive electrode connection path or a negative electrode connection path of the first battery cell and the second battery cell, the positive electrode connection path is a connection path between a positive electrode of the first battery cell and a positive electrode of the second battery cell, the negative electrode connection path is a connection path between a negative electrode of the first battery cell and a negative electrode of the second battery cell, the first battery cell is connected to the first connection port, the second battery cell is connected to the second connection port, the first connection port is used for supplying power, the second connection port is used for charging, and the first connection port and the second connection port are respectively disposed at two ends of the battery, the second connecting port is connected with a charging management module, and the charging management module is arranged close to the second connecting port;
when the first connection port is discharging, controlling the parallel switch circuit to disconnect the first battery core from the second battery core, and charging the battery through the second connection port;
and when the first connection port is not discharged, controlling the parallel switch circuit to connect the first battery cell and the second battery cell, and charging the battery through the second connection port.
2. The charging method according to claim 1, further comprising:
when power is supplied, whether the battery is charging is judged;
when the battery is being charged, the first battery cell is disconnected from the second battery cell, and the external discharge is performed through the first connection port of the battery.
3. The charging method according to claim 2, wherein the step of determining whether the battery is being charged further comprises:
when the battery is not charged, the first battery cell and the second battery cell are connected, and the first connection port of the battery is used for discharging.
4. The charging method according to claim 2, wherein the step of determining whether the battery is being charged further comprises:
when the battery is not charged, the battery is directly discharged to the outside through the first connection port of the battery.
5. The charging method according to claim 4, wherein the step of discharging the external power directly through the first connection port of the battery further comprises:
judging whether the electric quantity of the first battery cell is lower than an electric quantity threshold value;
when the electric quantity of the first battery cell is lower than an electric quantity threshold value, connecting the first battery cell with the second battery cell.
6. An electrical charging system, comprising:
a battery having a first connection port and a second connection port and comprising a first cell and a second cell in parallel and a parallel switching circuit connected between the first cell and the second cell, the parallel switch circuit is connected to the positive pole connecting path or the negative pole connecting path of the first battery cell and the second battery cell, the positive electrode connecting passage is a connecting passage between the positive electrode of the first battery cell and the positive electrode of the second battery cell, the negative electrode connection path is a connection path between the negative electrode of the first cell and the negative electrode of the second cell, the first cell is connected with the first connection port, the second cell is connected with the second connection port, the first connection port is used for supplying power, the second connection port is used for charging, and the first connection port and the second connection port are respectively arranged at two ends of the battery;
the power supply module is connected with the first connection port of the battery;
the charging management module is connected with the second connecting port of the battery, is arranged close to the second connecting port and is externally connected with a charger;
the control module is respectively connected with the parallel switch circuit, the power supply module and the charging management module;
the control module includes a charging control module, the charging control module including:
the first judgment unit is used for judging whether the first connection port of the battery is discharging or not when receiving the charging request of the charging management module;
the charging processing unit is used for controlling the parallel switch circuit to disconnect the first battery core from the second battery core and controlling the charging management module to charge the battery through the second connection port when the first connection port is discharging; when the first connection port is not discharged, the parallel switch circuit is controlled to connect the first battery cell and the second battery cell, and the charging management module is controlled to charge the battery through the second connection port.
7. The charging system of claim 6, wherein the control module further comprises a power supply control module comprising:
the second judgment unit is used for judging whether the battery is charging or not when receiving a power supply request of an electric system;
and the power supply processing unit is used for controlling the parallel switch circuit to disconnect the first battery cell from the second battery cell and controlling the power supply module to supply power to the power utilization system when the battery is being charged, so that the first connection port of the battery discharges outwards.
8. The charging system of claim 7, wherein the power supply processing unit is further configured to:
when the battery is not charged, the parallel switch circuit is controlled to connect the first battery cell and the second battery cell, and the power supply module is controlled to supply power to the power utilization system, so that the first connection port of the battery discharges outwards.
9. The charging system of claim 7, wherein the power supply processing unit is further configured to:
when the battery is not charged, the power supply module is directly controlled to supply power to the power utilization system, so that the first connection port of the battery is discharged outwards.
10. A terminal device, comprising:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the charging method of any of claims 1-5.
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| CN112788902B (en) * | 2019-11-11 | 2023-02-07 | 阿里巴巴集团控股有限公司 | Portable electronic devices and their remote controls |
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