CN111384762A

CN111384762A - Battery module, charging circuit, charging control method and device and electronic equipment

Info

Publication number: CN111384762A
Application number: CN202010471757.4A
Authority: CN
Inventors: 孙长宇; 王彦腾
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-07-07
Anticipated expiration: 2040-05-29
Also published as: CN111384762B

Abstract

The disclosure relates to a battery module, a charging circuit, a charging control method and device and an electronic device. This battery module includes: the battery comprises a plurality of groups of battery cells, a selector switch, a plurality of switching units and a plurality of filter capacitors, wherein the switching units and the filter capacitors are in one-to-one correspondence with the battery cells in the plurality of groups of battery cells; the plurality of switching units are connected in series, and each switching unit is connected with each battery cell; the filter capacitor is connected with the last switching unit; each switching unit is used for adjusting the connection state of the corresponding battery cells according to the control signal so as to enable a plurality of groups of battery cells to form a series connection framework or a parallel connection framework; the change-over switch is respectively connected with an external power supply and the first change-over unit and used for switching on or switching off the connection between the power supply and the multiple groups of battery cores according to a control signal. In the embodiment, high-power charging can be realized in a series state, and the voltages of a plurality of battery cells can be balanced in a parallel state, so that the service life of each battery cell is ensured on the basis of meeting the requirement of high-power charging of electronic equipment.

Description

Battery module, charging circuit, charging control method and device and electronic equipment

Technical Field

The present disclosure relates to the field of charging technologies, and in particular, to a battery module, a charging circuit, a charging control method and apparatus, and an electronic device.

Background

At present, the charging speed of the existing mobile phone is faster and faster, the requirement on the charging power is higher and higher, and when the charging power reaches a certain degree, the charging can be realized only by connecting double series batteries or a plurality of batteries in series.

However, when the mobile phone includes a special-shaped battery, the voltages of the multiple batteries in the mobile phone may have different voltages, so that the service lives of the batteries are different, and the use experience is reduced.

Disclosure of Invention

The present disclosure provides a battery module, a charging circuit, a charging control method and apparatus, and an electronic device, so as to solve the deficiencies of the related art.

According to a first aspect of the embodiments of the present disclosure, there is provided a battery module including: the battery comprises a plurality of groups of battery cells, a selector switch, a plurality of switching units and a plurality of filter capacitors, wherein the switching units and the filter capacitors are in one-to-one correspondence with the battery cells in the plurality of groups of battery cells; the plurality of switching units are connected in series, and each switching unit is connected with each battery cell; the filter capacitor is connected with the last switching unit in the plurality of switching units after being connected in series; wherein the content of the first and second substances,

each switching unit is used for adjusting the connection state of the corresponding battery cells according to the control signal so as to enable the plurality of groups of battery cells to form a series connection framework or a parallel connection framework;

the change-over switch is respectively connected with an external power supply and a first change-over unit in the plurality of change-over units after series connection, and is used for switching on or switching off the connection between the power supply and the plurality of groups of battery cores according to a control signal.

Optionally, each switching unit includes three switching devices and three connection terminals; wherein the content of the first and second substances,

the first end of the first switching device is respectively connected with the first end and the first connecting end of the corresponding battery cell, and the second end of the first switching device is connected with the second connecting end; the first end of the second switching device is respectively connected with the second end of the corresponding battery core and the first end of the third switching device, and the second end of the second switching device is grounded; the second end of the third switching device is connected with the third connecting end;

in a serial state, the first connecting end of the switching unit of the current stage is connected with the third connecting end of the switching unit of the previous stage, and the second connecting end of the switching unit of the current stage is connected with the second connecting end of the switching unit of the previous stage.

According to a second aspect of the embodiments of the present disclosure, there is provided a charging circuit, including: the charging device comprises a selector switch, a plurality of charging units and a filter capacitor; the plurality of charging units are connected in series; the filter capacitor is connected with the last charging unit in the plurality of charging units after being connected in series; wherein the content of the first and second substances,

the charging units are used for adjusting the connection state of the capacitors in the charging units according to the control signal so as to enable the capacitors in the charging units to form a series architecture or a parallel architecture;

the change-over switch is respectively connected with an external power supply and a first charging unit in the plurality of charging units after series connection and is used for switching on or switching off the connection between the power supply and the plurality of charging units according to a control signal.

Optionally, each of the plurality of charging units includes a capacitor, three switching devices, and three connection terminals; wherein the content of the first and second substances,

the first end of the first switching device is respectively connected with the first end and the first connecting end of the capacitor, and the second end of the first switching device is respectively connected with the second connecting end; the first end of the second switching device is respectively connected with the second end of the capacitor and the first end of the third switching device, and the second end of the second switching device is grounded; the second end of the third switching device is connected with the third connecting end;

under the series connection state, the first connecting end of the charging unit of the current level is connected with the third connecting end of the charging unit of the previous level, and the second connecting end of the charging unit of the current level is connected with the second connecting end of the charging unit of the previous level.

According to a third aspect of the embodiments of the present disclosure, there is provided a charge control method applied to the battery module of the first aspect, the method including:

acquiring the charging state of the battery module; the charging state comprises a constant current charging state or a constant voltage charging state;

sending control signals to a plurality of switching units in the battery module according to the charging state; the plurality of switching units adjust the connection states of the corresponding battery cells according to the control signals, so that the plurality of groups of battery cells form a series architecture or a parallel architecture;

and charging a plurality of groups of battery cells in the battery module based on the series architecture or the parallel architecture.

Optionally, charging multiple groups of battery cells in the battery module based on the series architecture includes:

in the first half period of each charging period, serially charging the multiple groups of battery cells and supplying power to a load by an external power supply based on the serial architecture;

and in the later half period of each charging period, controlling a plurality of switching units to adjust a plurality of groups of battery cells to form a parallel framework, and supplying power to the load by the plurality of groups of battery cells under the parallel framework.

Optionally, charging multiple groups of battery cells in the battery module based on the parallel architecture includes:

in the first half period of each charging period, an external power supply charges the multiple groups of battery cells in parallel based on the parallel architecture and supplies power to a load;

and in the later half period of each charging period, disconnecting the external power supply from the multiple groups of battery cells, and supplying power to the load by the multiple groups of battery cells under the parallel framework.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a charging control method applied to the charging circuit of the second aspect, the method including:

acquiring the charging state of a battery module to be charged; the charging state comprises a constant current charging state or a constant voltage charging state;

sending control signals to a plurality of charging units in the charging circuit according to the charging state; each charging unit in the plurality of charging units adjusts the connection state of the capacitor in the charging unit according to the control signal, so that the capacitors in the plurality of charging units form a series structure or a parallel structure;

and charging the battery module based on the series architecture or the parallel architecture.

Optionally, charging the battery module based on the series architecture includes:

in the first half period of each charging period, serially charging a capacitor in the charging circuit and supplying power to the battery module by an external power supply based on the serial framework;

and controlling a plurality of charging units to adjust the connection state of the capacitor to form a parallel framework in the second half period of each charging cycle, wherein the capacitor in the plurality of charging units supplies power to the battery module under the parallel framework.

Optionally, charging the battery module based on the parallel architecture includes:

in the first half period of each charging period, carrying out parallel charging on capacitors in the plurality of charging units based on the parallel framework by an external power supply and supplying power to the battery module;

and in the second half period of each charging period, disconnecting the external power supply from the plurality of charging units, and supplying power to the battery module by the capacitors in the plurality of charging units under the parallel architecture.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a charge control device suitable for the battery module of the first aspect, the device including:

the state acquisition module is used for acquiring the charging state of the battery module; the charging state comprises a constant current charging state or a constant voltage charging state;

the architecture acquisition module is used for sending control signals to a plurality of switching units in the battery module according to the charging state; the plurality of switching units adjust the connection states of the corresponding battery cells according to the control signals, so that the plurality of groups of battery cells form a series architecture or a parallel architecture;

and the battery cell charging module is used for charging a plurality of groups of battery cells in the battery module based on the series connection framework or the parallel connection framework.

Optionally, the cell charging module includes:

the first charging unit is used for performing series charging on the multiple groups of battery cells by an external power supply based on the series architecture and supplying power to a load in the first half period of each charging cycle;

and the second charging unit is used for controlling the plurality of switching units to adjust the plurality of groups of battery cells to form a parallel framework in the later half period of each charging period, and the plurality of groups of battery cells supply power for the load under the parallel framework.

Optionally, the cell charging module includes:

the third charging unit is used for performing parallel charging on the multiple groups of battery cores by an external power supply based on the parallel framework and supplying power to a load in the first half period of each charging cycle;

and the fourth charging unit is used for disconnecting the external power supply from the multiple groups of battery cells in the second half period of each charging period, and the multiple groups of battery cells supply power to the load under the parallel framework.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a charging control device, adapted to erect the charging circuit according to the second aspect, the device including:

the state acquisition module is used for acquiring the charging state of the battery module to be charged; the charging state comprises a constant current charging state or a constant voltage charging state;

the architecture acquisition module is used for sending control signals to a plurality of charging units in the charging circuit according to the charging state; each charging unit in the plurality of charging units adjusts the connection state of the capacitor in the charging unit according to the control signal, so that the capacitors in the plurality of charging units form a series structure or a parallel structure;

and the battery cell charging module is used for charging the battery module based on the series connection framework or the parallel connection framework.

Optionally, the cell charging module includes:

the first charging unit is used for carrying out series charging on a capacitor in the charging circuit by an external power supply based on the series architecture and supplying power to the battery module in the first half period of each charging cycle;

and the second charging unit is used for controlling the plurality of charging units to adjust the connection state of the capacitor to form a parallel framework in the later half period of each charging cycle, and the capacitors in the plurality of charging units supply power to the battery module under the parallel framework.

Optionally, the cell charging module includes:

the third charging unit is used for charging the capacitors in the plurality of charging units in parallel based on the parallel framework by an external power supply and supplying power to the battery module in the first half period of each charging cycle;

and the fourth charging unit is used for disconnecting the external power supply from the plurality of charging units in the second half period of each charging period, and the capacitors in the plurality of charging units supply power to the battery module under the parallel framework.

According to a seventh aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a battery module;

a processor;

a memory for storing a computer program executable by the processor;

the processor is configured to execute the computer program in the memory to implement the steps of the method of the third aspect.

According to an eighth aspect of embodiments of the present disclosure, there is provided an electronic apparatus including:

a charging circuit;

a processor;

a memory for storing a computer program executable by the processor;

the processor is configured to execute the computer program in the memory to implement the steps of the method of the fourth aspect.

According to a ninth aspect of embodiments of the present disclosure, there is provided a readable storage medium having stored thereon an executable computer program which, when executed, performs the steps of the method of the third aspect.

According to a tenth aspect of embodiments of the present disclosure, there is provided a readable storage medium having stored thereon an executable computer program which, when executed, performs the steps of the method of the fourth aspect.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

as can be seen from the above embodiments, in the embodiments of the present disclosure, by setting the switch and the plurality of switching units, the connection state of the battery cells can be adjusted by controlling the switches in the switch and the switching units, so that the plurality of battery cells form a series architecture or a parallel architecture. In this embodiment, the battery module can be charged by adopting the series architecture or the parallel architecture, high-power charging can be realized in the series state, and the voltages of a plurality of battery cells can be balanced in the parallel state, so that the service life of each battery cell is ensured on the basis of meeting the requirement of high-power charging of electronic equipment, and the improvement of the use experience is facilitated.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a circuit diagram illustrating a switching unit according to an exemplary embodiment.

Fig. 2 to 5 are circuit diagrams illustrating a battery module according to an exemplary embodiment.

Fig. 6-9 are circuit diagrams illustrating a charging circuit according to an exemplary embodiment.

Fig. 10-12 are flowcharts illustrating a charging control method according to an exemplary embodiment.

FIGS. 13-15 are flow diagrams illustrating a charge control method according to an exemplary embodiment.

Fig. 16 to 18 are block diagrams illustrating a charge control device according to an exemplary embodiment.

Fig. 19 to 21 are block diagrams illustrating a charge control device according to an exemplary embodiment.

FIG. 22 is a block diagram illustrating an electronic device in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The following exemplary described embodiments do not represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure as recited in the claims below.

In order to solve the technical problem, the embodiment of the present disclosure provides a battery module, which is characterized in that a switch and a plurality of switching units are provided, and the connection state of each battery cell can be adjusted by controlling the switch state of the switch and the switching units, so that a plurality of groups of battery cells form a series connection framework or a parallel connection framework, high-power charging can be realized through the series connection framework, and the voltage of the battery cells can be balanced through the parallel connection framework, thereby ensuring the service life of each battery cell on the basis of meeting the requirement of high-power charging of electronic equipment.

In an embodiment, referring to fig. 1, each switching unit includes three switching devices and three connection terminals; wherein the content of the first and second substances,

a first end of the first switching device Q1 is respectively connected with a first end (positive electrode) of the corresponding battery core B and a first connection end P1, and a second end is connected with a second connection end P2; the first end of the second switching device Q2 is respectively connected with the second end (negative pole) of the corresponding battery core B and the first end of the third switching device Q3, and the second end is grounded; a second terminal of the third switching device Q3 is connected to a third connection terminal P3;

in the serial state, the first connection terminal P1 of the switching unit of this stage is connected to the third connection terminal P3 of the switching unit of the previous stage, and the second connection terminal P2 of the switching unit of this stage is connected to the second connection terminal P2 of the switching unit of the previous stage.

It should be noted that, in this embodiment, each switching unit corresponds to one group of battery cells, that is, a technician can adjust the number of battery cells and the number of switching units, so as to achieve an effect of charging different groups of battery cells. In practical application, each switching unit can be made into an independent circuit module, the number of the switching units can be adjusted through plugging operation among the switching units, and the corresponding scheme falls into the protection scope of the disclosure.

It should be noted that, in the present embodiment, the charging circuit may include a controller, which is connected to each switching device in the switching unit, and the controller may control the switching state by sending a control signal to each switching device. In practical application, the controller may be separately configured, or implemented by using a processor of the electronic device where the battery module is located, or implemented by using a power management chip of the electronic device where the battery module is located, which is not limited herein.

The following describes the working process of a battery module provided in the embodiment of the present disclosure by taking 3 switching units as an example, fig. 2 shows a battery module formed by using 3 switching units, and referring to fig. 2, a battery module includes: 3 groups of battery cells B1, B2 and B3, switching devices Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q10 and Q12 and a filter capacitor C0. Among them, the switching devices Q2, Q3, and Q8 constitute one switching unit, the switching devices Q4, Q5, and Q10 constitute one switching unit, and the switching devices Q6, Q7, and Q12 constitute one switching unit. The connection relationship between each switching device and the battery is shown in fig. 2.

With continued reference to fig. 2, the battery module may constitute 2 kinds of charging frames including:

series architecture

The switching device Q1, the switching device Q3, the switching device Q5 and the switching device Q7 are controlled to obtain a series architecture as shown in fig. 3.

Referring to fig. 3, in the series configuration, an external power supply charges a cell B3 through a switching device Q1, charges a cell B2 through a switching device Q3, and charges a cell B1 through a switching device Q5; the external load is supplied with power through the switching device Q7.

Therefore, under the series framework, the battery module can charge a plurality of battery cells by adopting large charging power of large voltage and large current.

Parallel architecture

The switching device Q1, the switching device Q2, the switching device Q8, the switching device Q4, the switching device Q10, the switching device Q6 and the switching device Q12 are controlled to obtain a parallel architecture as shown in fig. 4.

Referring to fig. 4, in the parallel architecture, an external power supply supplies power to the cell B3 through a loop formed by the switching device Q1, the switching device Q8, and the cell B3; a loop formed by the switching device Q1, the switching device Q2, the switching device Q4, the switching device Q10 and the battery cell B2 supplies power to the battery cell B2; a loop formed by the switching device Q1, the switching device Q2, the switching device Q6, the switching device Q12 and the battery cell B1 supplies power to the battery cell B1; the external load is powered through switching device Q1 and switching device Q2.

Therefore, under the parallel framework, the battery module can adopt constant voltage charging, so that voltage balance among a plurality of battery cells can be realized, and the service life of each battery cell is prolonged.

In the parallel architecture, when the switching device Q1 is turned off, a discharge circuit as shown in fig. 5 can be obtained, and at this time, 3 cells B1, B2 and B3 are connected in parallel to supply power to the load.

With reference to the structures shown in fig. 2 to 4, the working process of the battery module includes:

step 1, the controller and a fuel gauge in the battery module can acquire the voltage of each battery cell, and determine whether constant Current Charging (CC) or constant voltage Charging (CV) is adopted according to the voltage of each battery cell.

Step 21, in the constant current charging mode, the controller controls the battery module to be switched to a series framework; alternatively, in the constant voltage charging mode, the controller controls the battery modules to switch to the parallel configuration, step 22.

And 3, charging the plurality of battery cells based on the series architecture in the step 21 or the parallel architecture in the step 22.

It is understood that a plurality of cells may be charged through step 1, step 21, and step 3, or step 1, step 22, and step 3. In practical application, in the charging process, the electronic device where the battery module is located needs to maintain power supply: under a series architecture or a parallel architecture, an external power supply can directly supply power to the load, and at the moment, the plurality of battery cells are also used as the load.

In this embodiment, a plurality of electric cores have the charging and can be for load power supply simultaneously, include:

series architecture

During the first half of each charging cycle, the series architecture shown in fig. 3 is used to charge multiple cells while an external power source supplies power to the load.

In the second half of each charging cycle, the series architecture shown in fig. 3 is switched to the parallel architecture shown in fig. 5, and a plurality of cells supply power to the load.

Parallel architecture

During the first half of each charging cycle, the parallel architecture shown in fig. 4 is used to charge multiple cells, while an external power source supplies power to the load.

In the second half of each charging cycle, the parallel architecture shown in fig. 4 is switched to the parallel architecture shown in fig. 5, and a plurality of cells supply power to the load.

By arranging the switch and the plurality of switching units, the connection state of the battery cells can be adjusted by controlling the switch devices in the switch and the switching units, so that the plurality of battery cells form a series connection framework or a parallel connection framework. In this embodiment, the battery module can be charged by adopting the series architecture or the parallel architecture, high-power charging can be realized in the series state, and the voltages of a plurality of battery cells can be balanced in the parallel state, so that the service life of each battery cell is ensured on the basis of meeting the requirement of high-power charging of electronic equipment, and the improvement of the use experience is facilitated.

In order to solve the above technical problem, an embodiment of the present disclosure provides a charging circuit, fig. 6 illustrates a circuit schematic diagram of a charging circuit, fig. 7 illustrates a circuit schematic diagram of charging a capacitor in a series architecture, fig. 8 illustrates a circuit schematic diagram of charging a capacitor in a parallel architecture, and fig. 9 illustrates a circuit schematic diagram of discharging a plurality of capacitors in a parallel architecture.

The charging circuit provided in this embodiment is different from the battery module shown in fig. 2 in that the battery cells B1 through B3 in fig. 2 are respectively replaced with capacitors C1 through C3, so that the charging circuit can charge an external (single or multiple parallel) battery module, and the working process can refer to the contents of the embodiments shown in fig. 3 through 5, which is not described herein again.

By arranging the switch and the plurality of charging units, the connection state of the capacitors can be adjusted by controlling the switch and the switching devices in the charging units, so that the capacitors in the plurality of charging units form a series architecture or a parallel architecture. The series architecture or the parallel architecture can be adopted to charge the battery module in the embodiment, high-power charging can be realized in the series state, high-current charging can be realized in the parallel state, and the voltage of the battery module is equalized, so that the service life of the battery module is ensured on the basis of meeting the requirement of high-power charging of electronic equipment, and the improvement of use experience is facilitated.

On the basis of the battery modules shown in fig. 2 to 5, the embodiment of the present disclosure further provides a charging control method, referring to fig. 10, including steps 101 to 103:

in step 101, acquiring a charging state of a battery module; the charging state comprises a constant current charging state or a constant voltage charging state;

in step 102, sending control signals to a plurality of switching units in the battery module according to the charging state; the plurality of switching units adjust the connection states of the corresponding battery cells according to the control signals, so that the plurality of groups of battery cells form a series architecture or a parallel architecture;

in step 103, charging a plurality of groups of cells in the battery module based on the series or parallel architecture.

In an embodiment, referring to fig. 11, charging multiple groups of cells in the battery module based on the series connection architecture includes:

in step 111, in the first half period of each charging cycle, performing series charging on the multiple groups of battery cells and supplying power to a load by an external power supply based on the series architecture;

in step 112, in a second half cycle of each charging cycle, the plurality of switching units are controlled to adjust the plurality of sets of battery cells to form a parallel architecture, and the plurality of sets of battery cells supply power to the load under the parallel architecture.

In an embodiment, referring to fig. 12, charging multiple groups of cells in the battery module based on the parallel architecture includes:

in step 121, in the first half period of each charging cycle, performing parallel charging on the multiple groups of battery cells and supplying power to a load by an external power supply based on the parallel architecture;

in step 122, in a second half cycle of each charging cycle, the external power source and the plurality of battery cells are disconnected, and the plurality of battery cells supply power to the load under the parallel architecture.

It can be understood that the method provided by the embodiment of the present disclosure corresponds to the embodiment of the battery module of the above embodiments, and specific contents may refer to the contents of each embodiment of the battery module, which are not described herein again.

On the basis of the charging circuits shown in fig. 6 to 9, an embodiment of the present disclosure further provides a charging control method, referring to fig. 13, including steps 131 to 133:

in step 131, the charging state of the battery module to be charged is obtained; the charging state comprises a constant current charging state or a constant voltage charging state;

in step 132, sending control signals to a plurality of charging units in the charging circuit according to the charging state; each charging unit in the plurality of charging units adjusts the connection state of the capacitor in the charging unit according to the control signal, so that the capacitors in the plurality of charging units form a series structure or a parallel structure;

in step 133, the battery module is charged based on the series configuration or the parallel configuration.

In an embodiment, referring to fig. 14, the charging the battery module based on the series connection architecture includes:

in step 141, in the first half period of each charging cycle, a capacitor in the charging circuit is charged in series by an external power supply based on the series connection structure and supplies power to the battery module;

in step 142, in the second half of each charging cycle, the plurality of charging units are controlled to adjust the connection state of the capacitors to form a parallel structure, and the capacitors in the plurality of charging units supply power to the battery module in the parallel structure.

In one embodiment, referring to fig. 15, the charging the battery module based on the parallel architecture includes:

in step 151, during the first half period of each charging cycle, the external power source charges the capacitors in the plurality of charging units in parallel based on the parallel architecture and supplies power to the battery module;

in step 152, in the second half of each charging cycle, the external power source and the plurality of charging units are disconnected, and the capacitors in the plurality of charging units supply power to the battery module in the parallel configuration.

It can be understood that the method provided by the embodiment of the present disclosure corresponds to the embodiment of the charging circuit in the above embodiments, and specific contents may refer to the contents of each embodiment of the charging circuit, which are not described herein again.

On the basis of a charging control method shown in fig. 10, an embodiment of the present disclosure further provides a charging control device, which is suitable for the battery module illustrated in fig. 2 to 5, and referring to fig. 16, the charging control device includes:

a state acquiring module 161, configured to acquire a charging state of the battery module; the charging state comprises a constant current charging state or a constant voltage charging state;

an architecture obtaining module 162, configured to send a control signal to a plurality of switching units in the battery module according to the charging state; the plurality of switching units adjust the connection states of the corresponding battery cells according to the control signals, so that the plurality of groups of battery cells form a series architecture or a parallel architecture;

and a cell charging module 163, configured to charge multiple groups of cells in the battery module based on the series connection architecture or the parallel connection architecture.

In an embodiment, referring to fig. 17, the cell charging module 163 includes:

a first charging unit 171, configured to charge the multiple sets of battery cells in series based on the series architecture and supply power to a load from an external power source in a first half period of each charging cycle;

and the second charging unit 172 is configured to control the plurality of switching units to adjust the plurality of sets of battery cells to form a parallel framework in a second half cycle of each charging cycle, and the plurality of sets of battery cells supply power to the load under the parallel framework.

In an embodiment, referring to fig. 18, the cell charging module includes:

a third charging unit 181, configured to charge the multiple sets of battery cells in parallel based on the parallel architecture and supply power to a load by an external power supply in a first half cycle of each charging cycle;

and a fourth charging unit 182, configured to disconnect the external power supply from the multiple groups of battery cells in a second half cycle of each charging cycle, where the multiple groups of battery cells supply power to the load in the parallel architecture.

It can be understood that the apparatuses provided in the embodiments of the present disclosure correspond to the embodiments of the methods described above, and specific contents may refer to the contents of the embodiments of the methods, which are not described herein again.

On the basis of a charging control method shown in fig. 13, an embodiment of the present disclosure further provides a charging control device, which is suitable for the charging circuit illustrated in fig. 6 to 9, and referring to fig. 19, the device includes:

a state acquiring module 191 for acquiring a charging state of the battery module to be charged; the charging state comprises a constant current charging state or a constant voltage charging state;

an architecture obtaining module 192, configured to send a control signal to a plurality of charging units in the charging circuit according to the charging status; each charging unit in the plurality of charging units adjusts the connection state of the capacitor in the charging unit according to the control signal, so that the capacitors in the plurality of charging units form a series structure or a parallel structure;

and the battery cell charging module 193 is configured to charge the battery module based on the series connection architecture or the parallel connection architecture.

In an embodiment, referring to fig. 20, the cell charging module 193 includes:

the first charging unit 201 is used for charging the capacitor in the charging circuit in series based on the series connection structure by an external power supply and supplying power to the battery module in the first half period of each charging cycle;

the second charging unit 202 is configured to control the plurality of charging units to adjust connection states of the capacitors to form a parallel architecture in a second half cycle of each charging cycle, and the capacitors in the plurality of charging units supply power to the battery module in the parallel architecture.

In an embodiment, referring to fig. 21, the cell charging module includes:

a third charging unit 211 for charging the capacitors of the plurality of charging units in parallel based on the parallel architecture and supplying power to the battery module by an external power source in a first half period of each charging cycle;

and a fourth charging unit 212, configured to disconnect an external power supply from the plurality of charging units in a second half cycle of each charging cycle, so that the capacitors in the plurality of charging units supply power to the battery module in the parallel configuration.

FIG. 22 is a block diagram illustrating an electronic device in accordance with an example embodiment. For example, the electronic device 2200 may be a smartphone, a computer, a digital broadcast terminal, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 22, the electronic device 2200 may include one or more of the following components: processing component 2202, memory 2204, power component 2206, multimedia component 2208, audio component 2210, interface to input/output (I/O) 2212, sensor component 2214, communication component 2216, and image capture component 2218.

The processing component 2202 generally provides for overall operation of the electronic device 2200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 2202 may include one or more sets of processors 2220 to execute computer programs. Further, the processing component 2202 may include one or more sets of modules that facilitate interaction between the processing component 2202 and other components. For example, the processing component 2202 can include a multimedia module to facilitate interaction between the multimedia component 2208 and the processing component 2202.

The memory 2204 is configured to store various types of data to support operations at the electronic device 2200. Examples of such data include computer programs, contact data, phonebook data, messages, pictures, videos, etc. for any application or method operating on the electronic device 2200. The memory 2204 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power component 2206 provides power to various components of the electronic device 2200. The power components 2206 may include a power management system, one or more sets of power supplies, and other components associated with generating, managing, and distributing power for the electronic device 2200. The power supply component 2206 may include a power chip, and the controller may communicate with the power chip to control the power chip to turn on or off the switching device, so that the battery supplies power or does not supply power to the motherboard circuit. In one example, the power module 2206 includes the power module shown in fig. 2-5 or the charging circuit shown in fig. 6-9.

The multimedia component 2208 includes a screen that provides an output interface between the electronic device 2200 and the target object. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a target object. The touch panel includes one or more sets of touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

Audio component 2210 is configured to output and/or input audio signals. For example, audio component 2210 includes a Microphone (MIC) configured to receive external audio signals when electronic device 2200 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 2204 or transmitted via the communication component 2216. In some embodiments, audio component 2210 also includes a speaker for outputting audio signals.

The I/O interface 2212 provides an interface between the processing component 2202 and a peripheral interface module, which may be a keyboard, click wheel, buttons, and the like.

The sensor assembly 2214 includes one or more sets of sensors for providing various aspects of state assessment for the electronic device 2200. For example, the sensor assembly 2214 may detect an open/closed state of the electronic device 2200, the relative positioning of components, such as a display and a keypad of the electronic device 2200, the sensor assembly 2214 may also detect a change in the position of the electronic device 2200 or one of the components, the presence or absence of a target object in contact with the electronic device 2200, the orientation or acceleration/deceleration of the electronic device 2200, and a change in the temperature of the electronic device 2200.

The communication component 2216 is configured to facilitate wired or wireless communication between the electronic device 2200 and other devices. The electronic device 2200 may have access to a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 2216 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 2216 also includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device 2200 may be implemented by one or more sets of Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components.

In an exemplary embodiment, a non-transitory readable storage medium is also provided, such as the memory 2204 including instructions, that includes an executable computer program that is executable by the processor. The readable storage medium may be, among others, ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A battery module, comprising: the battery comprises a plurality of groups of battery cells, a selector switch, a plurality of switching units and a plurality of filter capacitors, wherein the switching units and the filter capacitors are in one-to-one correspondence with the battery cells in the plurality of groups of battery cells; the plurality of switching units are connected in series, and each switching unit is connected with each battery cell; the filter capacitor is connected with the last switching unit in the plurality of switching units after being connected in series; wherein the content of the first and second substances,

2. The battery module according to claim 1, wherein each switching unit includes three switching devices and three connection terminals; wherein the content of the first and second substances,

3. A charging circuit, comprising: the charging device comprises a selector switch, a plurality of charging units and a filter capacitor; the plurality of charging units are connected in series; the filter capacitor is connected with the last charging unit in the plurality of charging units after being connected in series; wherein the content of the first and second substances,

4. The charging circuit of claim 3, wherein each of the plurality of charging units comprises a capacitor, three switching devices, and three connection terminals; wherein the content of the first and second substances,

5. A charge control method applied to the battery module according to claim 1 or 2, the method comprising:

6. The charge control method of claim 5, wherein charging the plurality of groups of cells in the battery module based on the series architecture comprises:

7. The charge control method of claim 5, wherein charging the plurality of groups of cells in the battery module based on the parallel architecture comprises:

8. A charging control method applied to the charging circuit of claim 3 or 4, the method comprising:

9. The charge control method according to claim 8, wherein charging the battery module based on the series configuration comprises:

10. The charge control method of claim 8, wherein charging the battery module based on the parallel architecture comprises:

11. A charge control device applied to the battery module according to claim 1 or 2, the device comprising:

12. The charge control device of claim 11, wherein the cell charging module comprises:

13. The charge control device of claim 11, wherein the cell charging module comprises:

14. A charging control device adapted to the charging circuit of claim 3 or 4, the device comprising:

15. The charge control device of claim 14, wherein the cell charging module comprises:

16. The charge control device of claim 14, wherein the cell charging module comprises:

17. An electronic device, comprising:

a battery module;

a processor;

a memory for storing a computer program executable by the processor;

the processor is configured to execute the computer program in the memory to implement the steps of the method of any of claims 5 to 7.

18. An electronic device, comprising:

a charging circuit;

a processor;

a memory for storing a computer program executable by the processor;

the processor is configured to execute the computer program in the memory to implement the steps of the method of any of claims 8 to 10.

19. A readable storage medium having stored thereon an executable computer program, wherein the computer program when executed implements the steps of the method of any one of claims 5 to 7.

20. A readable storage medium having stored thereon an executable computer program, wherein the computer program when executed implements the steps of the method of any one of claims 8 to 10.