CN105811506B - Method for charging electronic device and electronic device - Google Patents

Abstract

The invention is suitable for the field of charging, and provides a charging system of electronic equipment, which comprises power supply equipment and the electronic equipment, wherein the power supply equipment is used for supplying power to the electronic equipment; the electronic equipment comprises a charging interface, N charging circuits connected in parallel, a switch module connected between the charging interface and the N charging circuits connected in parallel, an electric core connected with the N charging circuits connected in parallel, and a control module connected with the N charging circuits connected in parallel and the switch module, wherein when at least one of the following conditions is met, the control module controls the switch module to disconnect a power pin of the charging interface from all the charging circuits: receiving a disconnection instruction input by a user; the temperature of the battery cell of the electronic equipment is greater than or equal to a temperature threshold value; the positive input voltage of the battery cell is greater than or equal to a third voltage threshold; and the electric quantity of the battery core is greater than or equal to the electric quantity threshold value.

Description

Method for charging electronic device and electronic device

The present application is a division of chinese patent application 201410824434.3 entitled "method for charging an electronic device and an electronic device" filed 24/12/2014.

Technical Field

The present invention relates to the field of charging, and in particular, to a method for charging an electronic device and an electronic device.

Background

Electronic equipment, which is equipment consisting of electronic components such as integrated circuits, transistors, electron tubes and the like; for portions of the electronic device, it may also be programmed to perform various functions. At present, electronic devices are widely developed and applied in various industries, including: electronic computers, robots controlled by programmed controllers, numerical control and program control systems, etc.; particularly in life, the intelligent household appliance comprises a mobile terminal such as a smart phone and the like and also comprises an intelligent household appliance.

With the progress of the era, the internet and mobile communication networks provide a huge amount of functional applications. Users can not only use the electronic device for traditional applications, such as: answering or dialing a call by using a smart phone; meanwhile, the user can also use the electronic equipment to browse the web pages, transmit pictures, play games and the like. Along with the increase in the frequency of use of electronic devices, the electronic devices need to be charged frequently.

In an existing electronic device, a charging circuit (e.g., a charging chip) is disposed in the electronic device, and after a power supply device is connected (e.g., plugged) to the electronic device, a battery cell of the electronic device is charged through the charging circuit. However, at present, if the charging circuit is short-circuited, the charging circuit does not have the function of disconnecting the electrical connection between the power supply equipment and the battery cell, so that the power supply equipment directly adds the output voltage and/or current to the battery cell, and even if the battery cell is full of the power supply equipment, the battery cell can be forcibly charged, the battery cell can be damaged, and even the battery cell is cracked.

Disclosure of Invention

The invention aims to provide a method for charging electronic equipment and the electronic equipment, and aims to solve the problem that the battery cell cannot be timely disconnected when a charging chip is short-circuited in the prior art.

In a first aspect, the present invention provides a charging method, where an electronic device includes a charging interface, a switch module, N charging circuits connected in parallel, and a battery cell, and in a charging process of the electronic device, a charging electrical signal sequentially passes through the charging interface, the switch module, M charging circuits, and the battery cell, where M is less than or equal to N, and the method includes:

determining whether the charging circuit connects the switch module with the battery cell in a short circuit manner or not in the charging process of the electronic equipment;

when the charging circuit connects the switch module with the battery cell in a short circuit mode, the switch module is controlled to disconnect the electric connection between the charging interface and the charging circuit, so that the battery cell is stopped being charged through the charging circuit.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the determining whether the first charging circuit connects the switch module to the battery cell in a short circuit includes:

determining the voltage on a power pin of the charging interface;

and when the voltage on the power supply pin is smaller than or equal to a first voltage threshold, determining that the charging circuit connects the switch module with the battery cell in a short circuit mode.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining whether the charging circuit connects the switch module to the battery cell in a short circuit includes:

determining a voltage of the cell;

when the voltage of the battery cell is greater than or equal to a second voltage threshold, it is determined that the charging circuit short-circuits the switch module with the battery cell.

With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the method further includes:

sending a charging instruction of a specified charging voltage to the power supply equipment;

receiving a charging response sent by the power supply equipment according to the charging instruction;

and conducting K charging circuits to charge the battery cell according to the charging response, wherein K is less than or equal to N.

With reference to the first aspect, or the first implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the determining the number K of charging circuits that charge the battery core includes:

determining a charging stage of the electronic equipment;

and determining the number K of the charging circuits for charging the battery cell according to the current charging stage.

With reference to the second possible implementation manner of the first aspect, the third possible implementation manner of the first aspect, or the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the method further includes:

determining the number G of charging circuits for charging the battery cells;

and a charging loop for conducting G charging circuits to charge the battery cell, wherein G is less than or equal to N, and G is different from K.

With reference to the first aspect, or the first implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, or the fourth possible implementation manner of the first aspect, or the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the determining the number M of the charging circuits that charge the battery cell includes:

determining the number M of charging circuits for charging the cells according to at least one of the following parameters:

wherein the parameters include: the method comprises the steps of inputting a decentralized charging instruction by a user, the ambient temperature of the environment where one or more electronic devices in the electronic equipment are located and the running state of an application program.

With reference to the first aspect, or the first implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, or the fourth possible implementation manner of the first aspect, or the fifth possible implementation manner of the first aspect, or the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the method further includes:

disconnecting all charging circuits which are switched on and charge the battery cells when at least one of the following conditions is met:

wherein the conditions include: receiving a disconnection instruction input by a user, wherein the temperature of a battery cell of the electronic equipment is greater than or equal to a temperature threshold, the positive input voltage of the battery cell exceeds a third voltage threshold or is equal to the third voltage threshold, and the battery capacity of the battery cell is greater than or equal to a capacity threshold.

In a second aspect, the present invention provides an electronic device, where the electronic device includes a charging interface, a control module, N charging circuits connected in parallel, and an electric core, and is characterized in that the electronic device further includes a switch module, where the N charging circuits are connected in parallel between the switch module and the electric core, the switch module is connected between the charging interface and the charging circuits, and the control module is electrically connected to the switch module and the N charging circuits, respectively;

the control module is used for: determining whether the charging circuit connects the switch module with the battery cell in a short circuit manner or not in the process of charging the battery cell through the charging interface, the switch module and the M charging circuits in sequence, wherein M is less than or equal to N;

the control module is further configured to: when the charging circuit connects the switch module with the battery cell in a short circuit mode, the switch module is controlled to disconnect the electric connection between the charging interface and the charging circuit, so that the battery cell is stopped being charged through the charging circuit.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the control module is electrically connected to a power pin of the charging interface;

the control module is specifically configured to: and determining the voltage on a power supply pin of the charging interface, and determining that the charging circuit connects the switch module with the battery cell in a short circuit mode when the voltage on the power supply pin is smaller than or equal to a first voltage threshold value.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the control module is electrically connected to the battery cell;

the control module is specifically configured to: determining a voltage of the cell;

when the voltage of the battery cell is greater than or equal to a second voltage threshold, it is determined that the charging circuit short-circuits the switch module with the battery cell.

With reference to the second aspect, or the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the control module is further configured to:

sending a charging instruction of a specified charging voltage to the power supply equipment;

receiving a charging response sent by the power supply equipment according to the charging instruction;

and conducting K charging circuits to charge the battery cell according to the charging response, wherein K is less than or equal to N.

With reference to the second aspect, or the first implementation manner of the second aspect, or the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the control module is further configured to:

determining a charging stage of the electronic equipment;

and determining the number K of the charging circuits for charging the battery cell according to the current charging stage.

With reference to the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the control module is further configured to:

determining the number G of charging circuits for charging the battery cells;

and a charging loop for conducting G charging circuits to charge the battery cell, wherein G is less than or equal to N, and G is different from K.

With reference to the second aspect, or the first implementation manner of the second aspect, or the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, or the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the control module is further configured to:

determining the number M of charging circuits for charging the cells according to at least one of the following parameters:

wherein the parameters include: the method comprises the steps of inputting a decentralized charging instruction by a user, the ambient temperature of the environment where one or more electronic devices in the electronic equipment are located and the running state of an application program.

With reference to the second aspect, or the first implementation manner of the second aspect, or the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, or the fifth possible implementation manner of the second aspect, or the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the control module is further configured to:

disconnecting all charging circuits which are switched on and charge the battery cells when at least one of the following conditions is met:

wherein the conditions include: receiving a disconnection instruction input by a user, wherein the temperature of a battery cell of the electronic equipment is greater than or equal to a temperature threshold, the positive input voltage of the battery cell exceeds a third voltage threshold or is equal to the third voltage threshold, and the battery capacity of the battery cell is greater than or equal to a capacity threshold.

In the embodiment of the invention, after the power supply equipment is electrically connected with the charging interface of the electronic equipment, whether the charging circuit is short-circuited or not can be determined in the process of charging the battery cell; if the short circuit occurs, the electric connection between the charging interface and the charging circuit is disconnected so as to stop the power supply equipment from charging the battery cell through the charging circuit; therefore, the situation that the voltage output by the power supply equipment is directly imposed on the battery cell and the battery cell is forcibly charged to damage the battery cell is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a flowchart of a charging method according to an embodiment of the present invention;

fig. 2 is a flowchart of an operation of determining whether the charging circuit short-circuits the switch module with the cells;

fig. 3 is yet another operational flow diagram of the present determination of whether the charging circuit short-circuits the switch module with the cells;

fig. 4 is a flowchart of a charging method according to an embodiment of the present invention;

FIG. 5 is a block diagram of an electronic device according to an embodiment of the present invention;

fig. 6 is an optimized structure of an electronic device according to an embodiment of the present invention;

fig. 7 is a further optimized structure of an electronic device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In order to explain the technical means of the present invention, the following description will be given by way of specific examples.

The electronic equipment provided by the embodiment of the invention comprises a charging interface, a switch module, a charging circuit, a battery cell and the like. The battery cell is used for supplying power for the electronic equipment. The charging interface, the switch module, the charging circuit and the battery cell are electrically connected in sequence.

It is worth to be noted that the electronic device includes N charging circuits, where N is a positive integer greater than 1; the N charging circuits are connected in parallel between the switch module and the battery core. As an optional implementation manner of the embodiment of the present invention, the charging circuit is a circuit formed by electronic devices. As an optional implementation manner of the embodiment of the present invention, the charging circuit is a charging chip.

It is worth to say that the electronic device is also provided with a control module; as an embodiment, the control module is implemented by using an existing controller of the electronic device; as another embodiment, the control module is added to the electronic device, that is, the control module is different from an existing controller of the electronic device; as a specific implementation manner of the control module, the embodiment of the present invention is not limited, and may be implemented by a circuit having a data processing function, such as a processor, a single chip, or a programmable logic device.

It is worth to be noted that the control module is electrically connected with the switch module, and the control module controls the switch module to be switched on or off; specifically, when the control module receives a conduction instruction, the control switch module conducts the electric connection between the charging interface and the charging circuit; when the control module receives the disconnection instruction, the control switch module disconnects the electric connection between the charging interface and the charging circuit. It should be noted that, in the embodiments of the present invention, which electronic devices are used for implementing the switch module and the circuit connection relationship between the electronic devices are not limited. For example, the switch module is implemented by using a MOS transistor; the grid, the source and the drain of the MOS tube are respectively connected with the control module, the power pin of the charging interface and each charging circuit; the control module controls whether the charging interface is conducted or not to be electrically connected with the charging circuit by controlling a level signal output to the grid electrode of the MOS tube.

It should be noted that the control module is further electrically connected to each charging circuit (i.e., N charging circuits), and the control module may control whether to charge the battery cell through a certain charging circuit. For example, when the control module receives a distributed charging instruction, the control module only conducts the plurality of charging circuits specified by the distributed charging instruction, and the plurality of charging circuits specified by the distributed charging instruction conduct the electrical connection between the switch module and the battery cell, so that only a charging loop for charging the battery cell by the plurality of charging circuits specified by the distributed charging instruction is formed.

As described in the background art, when the battery cell is charged by the charging circuit, the short circuit of the charging circuit may cause the voltage of the electrical signal output by the power supply device to be directly imposed on the battery cell through the short-circuited charging circuit, which may damage the battery cell or even cause the battery cell to burst. Therefore, in the embodiment of the present invention, a switch module is connected in series between the charging circuit and the power pin of the charging interface, and if a certain charging circuit is short-circuited, the switch module can be directly controlled to disconnect all charging circuits to charge the battery cell, so as to stop charging the battery cell.

It should be noted that the charging interface of the electronic device includes a data pin; after the electronic equipment is connected with the power supply equipment through the charging interface of the electronic equipment, the electronic equipment can perform data transmission with the power supply equipment through the data pin, and data which can be transmitted through the data pin is not limited to data related to charging, and can also transmit audio and video files, document files and other data.

Specifically, fig. 1 shows a work flow of the charging method according to the embodiment of the present invention, but for convenience of description, only a part related to the embodiment of the present invention is shown. The charging method comprises A1 and A2.

It should be noted that, in the charging process of the electronic device, a charging electrical signal sequentially passes through the charging interface, the switch module, M charging circuits and the battery cell, where M is less than or equal to N, and is a positive integer. Specifically, the power supply device outputs a charging electrical signal to the electronic device, and the charging electrical signal sequentially passes through the charging interface, the switch module, the M parallel charging circuits and the battery cell, so as to charge the battery cell with the charging electrical signal.

A1, in the charging process of the electronic device, determining whether the charging circuit connects the switch module with the battery cell in a short circuit mode.

Specifically, after the power supply device is electrically connected to the charging interface of the electronic device, the power supply device sequentially charges the battery cell through the charging interface of the electronic device, the switch module and the M parallel charging circuits in a state where the switch module switches on the power pin of the charging interface and the one or more charging circuits.

Because M is a positive integer, a1 may charge the battery cell by at least one charging circuit. When M is larger than 1, the charging circuits of M charge the battery cells in parallel, and the current for charging the battery cells is shared by the M charging circuits in parallel; thus, the amount of heat generated by each charging circuit due to power loss can be reduced.

In addition, in different charging stages of charging the battery cell, the control module may adjust the value of M, that is, adjust how many charging circuits are used to simultaneously charge the battery cell, which is described as follows:

in the pre-charging stage, the control module determines that M is a value "1", that is, the control module only conducts one charging circuit, and a charging loop for charging the battery cell is formed through the charging circuit;

in the constant-current charging stage, the control module determines that M is a value of 2, namely the control module conducts the two charging circuits, the two charging circuits respectively form charging loops for charging the battery cell, and the two charging circuits simultaneously charge the battery cell in parallel;

in the constant-voltage charging stage, the control module determines that M is a value "1", that is, the control module only conducts one charging circuit, and a charging loop for charging the battery cell is formed through the charging circuit.

It is worth noting that, in the process of charging the battery cell, the specific determination manner of how to determine whether the charging circuit connects the switch module and the battery cell in a short circuit mode is not limited in the embodiment of the present invention.

As a determination manner for determining whether the charging circuit connects the switch module to the battery cell in a short circuit manner, detecting whether the charging circuit connects the switch module to the battery cell in a short circuit manner in real time, but a specific implementation manner of how to detect the short circuit connection of the switch module to the battery cell is not limited;

for example, the current flowing through the charging circuit is detected, and if the detected current is greater than the current threshold, it indicates that the charging circuit has short-circuited the switch module with the battery cell; for another example, in the constant-voltage charging stage, the voltage of the electrical signal output by the charging circuit to the battery cell is detected, and if the detected voltage is greater than the voltage of the battery cell in the saturation state (i.e., the voltage of the battery cell in the full charge state), it indicates that the charging circuit has short-circuited the switch module with the battery cell.

A2, when the charging circuit connects the switch module with the battery cell in a short circuit manner, controlling the switch module to disconnect the electrical connection between the charging interface and the charging circuit, so as to stop charging the battery cell through the charging circuit;

specifically, the switch module provided by the embodiment of the present invention is controlled by the control module, and specifically, the control module controls the switch module to be turned on or off; when the control module controls the switch module to be conducted, the power pin of the charging interface is conducted and electrically connected with the charging circuit; when the control module controls the switch module to be disconnected, the power pin of the charging interface is disconnected from the charging circuit.

In the embodiment of the present invention, once the control module detects that the charging circuit has short-circuited the switch module with the battery cell, the control module immediately controls the switch module to disconnect the electrical connection between the charging interface and the charging circuit, so that the charging loop that charges the battery cell through any one of the charging circuits is disconnected, the charging of the battery cell is stopped, and the battery cell is protected.

Fig. 2 shows an optimized workflow of the charging method according to the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to fig. 2, the determining whether the first charging circuit connects the switch module to the battery cell in a short circuit includes a11 and a 12.

A11, determining the voltage on a power supply pin of the charging interface;

a12, when the voltage on the power supply pin is smaller than or equal to a first voltage threshold value, determining that the charging circuit connects the switch module with the battery cell in a short circuit mode.

The specific determination method of how to determine the voltage on the power pin of the charging interface is not limited in this embodiment. As an implementation manner, a voltage detection circuit is arranged in the electronic device, the voltage detection circuit is electrically connected with a power pin of the charging interface, the voltage detection circuit detects the voltage of the power pin of the charging interface in real time in the process of charging the battery cell, and feeds the detected voltage back to the control module. Preferably, the voltage detection circuit is arranged in the control module, and the voltage detection circuit in the control module detects the voltage of the power pin of the charging interface in real time.

Under the normal condition, the charging voltage that electric core can bear is certain to the voltage of the signal of telecommunication of power supply unit output to electronic equipment is greater than the charging voltage that electric core can bear, if charging circuit short circuit, the voltage of power supply unit output can directly add by force to electric core, the voltage of power supply unit output can directly add by force on electric core, no matter whether electric core is full of all to electric core charge by force, damage electric core.

In addition, if the charging circuit is short-circuited, the battery cell is directly connected with the power pin of the charging interface through the short-circuited charging circuit and the conducted switch module, so that the voltage of the battery cell can be directly reduced by the voltage of the power pin of the charging interface, and the power pin of the charging interface is greatly reduced. Therefore, in this embodiment, the first voltage threshold is determined according to the voltage of the battery cell that has been charged in different charging phases, and the determined first voltage threshold is higher than the voltage of the battery cell that has been charged, and is determined according to experimental data such as impedance of an internal circuit of the switch module during specific application.

For example, in the constant-voltage charging phase, the determined first voltage threshold is greater than the voltage of the battery cell in the full-charged state.

In addition, the first voltage threshold is also determined when the battery cell is in the full charge state, and the determined first voltage threshold is greater than the voltage of the battery cell in the full charge state. Thus, when the battery cell is fully charged, if the charging circuit is short-circuited, the charging circuit for charging the battery cell cannot be disconnected; the voltage imposed on the battery core by the short-circuited charging circuit of the power supply equipment is larger than the voltage of the battery core in a full state, the battery core is charged forcibly, and meanwhile, the voltage of the power pin on the charging interface is pulled down by the voltage of the battery core, so that the voltage on the power pin is smaller than the first voltage threshold value, and the provided condition is met.

Fig. 3 shows another optimized workflow of the charging method according to the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to fig. 3, the determining whether the charging circuit connects the switch module to the battery cell in a short circuit includes a13 and a 14.

A13, determining the voltage of the battery cell;

a14, when the voltage of the battery cell is greater than or equal to a second voltage threshold value, determining that the charging circuit connects the switch module with the battery cell in a short circuit mode.

In this embodiment, a voltage detection circuit is disposed in the electronic device, and the voltage detection circuit detects the voltage of the battery cell in real time during the charging process of the battery cell and feeds the detected voltage back to the control module. Preferably, the voltage detection circuit is arranged in the control module, and the voltage detection circuit in the control module detects the voltage of the battery cell in real time.

Under the normal condition, the charging voltage that electric core can bear is certain, if the voltage of the signal of telecommunication of power supply unit output to electronic equipment is greater than the charging voltage that electric core can bear, for example charging circuit short circuit, the voltage of power supply unit output can directly add by force on electric core, whether electric core is full of all to electric core and charge by force, damage electric core.

Therefore, in the present embodiment, the second voltage threshold is determined according to the upper limit of the charging voltage that the battery cell can bear in different charging phases, and the determined second voltage threshold is greater than the charging voltage that the battery cell can bear.

For example, in the constant-voltage charging stage, the determined second voltage threshold is greater than the voltage of the battery cell in the fully charged state.

In addition, a second voltage threshold is also determined when the battery cell is in the fully charged state, and the determined second voltage threshold is greater than the voltage of the battery cell in the fully charged state. Thus, when the battery cell is fully charged, if the charging circuit is short-circuited, the charging circuit for charging the battery cell is still not disconnected; the voltage imposed on the battery cell by the short-circuited charging circuit of the power supply equipment is greater than the voltage of the battery cell in a full-charged state, and the voltage imposed on the battery cell reaches a second voltage threshold value to meet the provided condition.

It is strongly required that the embodiment of the present invention supports a plurality of charging circuits to charge the battery cell at the same time, so that the embodiment of the present invention can perform large-current charging (for example, large-current charging of 3A or more) on the battery cell, and further support high-voltage charging, that is, the power supply device can output an electrical signal having a voltage of 5V or more to the electronic device.

For example, in the constant current charging stage, to reduce transmission loss, the power supply device outputs an electrical signal having a voltage of 5V or more to the electronic device, the charging circuit of the electronic device steps down the electrical signal and increases the current, the plurality of charging circuits connected in parallel simultaneously charge the battery cells, and the charging current for charging the battery cells is 3A or more.

Fig. 4 shows another optimized workflow of the charging method according to the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown.

As an alternative implementation manner of the embodiment of the present invention, referring to fig. 4, the charging method further includes A3, a4, and a 5.

A3, sending a charging instruction specifying a charging voltage to the power supply apparatus.

The power supply device described in this embodiment may be a charging adapter, or may be another electronic device. However, when the electronic device is connected to the power supply device, the power supply device outputs a charging electrical signal to a charging interface of the electronic device, and the electrical signal charges a battery cell of the electronic device.

In addition, the power supply device has a controller that can communicate with a control module of the electronic device when the power supply device is connected to the electronic device. The control module of the electronic device may send a charging adjustment signal (e.g., the charging instruction) to the controller of the charging adapter, and the controller of the power supply device adjusts, according to the received charging adjustment signal: the voltage and/or current and/or power output by the power supply device.

As an optional implementation manner, the control module of the electronic device sends the charging instruction to the controller of the charging adapter, and the charging adapter outputs an electric signal with a voltage specified by the charging instruction to the electronic device; preferably, the voltage specified by the charging command is greater than or equal to 5V, such as 5V, 9V or 12V.

For example, when the charging adapter receives a charging command transmitted by the electronic device, if the charging command specifies 9V, the controller of the charging adapter determines whether the voltage output of 9V is supported, and if the voltage output of 9V is determined to be supported, the controller outputs an electrical signal of 9V to the charging interface of the electronic device under the control of the controller. By default, or when the voltage specified by the charging command is not 5V, 9V, or 12V, the charging adapter outputs an electrical signal of 5V to the charging interface of the electronic device.

And A4, receiving a charging response sent by the power supply equipment according to the charging instruction.

In this embodiment, when the power supply device receives the charging instruction and determines that the fast charging is supported, the power supply device feeds back a charging response corresponding to the charging instruction to a control module of the electronic device. As an implementation case of the first embodiment, when the power supply device receives the charging instruction and determines that the fast charging is not supported, the power supply device does not feedback the unsupported instruction to the electronic device to the control module of the electronic device.

And A5, conducting K charging circuits to charge the battery cell according to the charging response, wherein K is less than or equal to N.

And then, the control module receives a charging response corresponding to the charging instruction fed back by the power supply equipment and generates a distributed charging instruction of the appointed K charging circuits. The control module selects K charging circuits according to the dispersed charging instruction, switches on the charging loops of the K charging circuits for charging the battery cell, and charges the battery cell through the K charging circuits connected in parallel.

As an optional implementation manner of the embodiment of the present invention, specifically optimizing a5, where the determining the number K of the charging circuits that charge the battery cell includes:

determining a charging stage of the electronic equipment;

and determining the number K of the charging circuits for charging the battery cell according to the current charging stage.

As described above, the charging phase includes a pre-charging phase, a constant current charging phase, and a constant voltage charging phase. Because the battery cell can bear different charging currents in different charging stages, the data K of the charging circuit is adjusted in different charging stages according to the embodiment.

For example, in the pre-charging stage, a charging circuit is sufficient to provide the charging current required by the battery cells in the pre-charging stage, and the control module determines that M is a value "1"; the control module is only conducted with one charging circuit, and a charging loop for charging the battery cell is formed through the charging circuit;

in the constant-current charging stage, the two charging circuits are enough to provide the charging current required by the battery cell in the constant-current charging stage, the control module determines that M is a value of 2, namely the control module conducts the two charging circuits, the two charging circuits respectively form charging loops for charging the battery cell, and the two charging circuits simultaneously charge the battery cell in parallel;

in the constant-voltage charging stage, one charging circuit is enough to provide the charging current required by the battery cell in the constant-voltage charging stage, and the control module determines that the value M is 1, namely the control module only switches on one charging circuit, and a charging loop for charging the battery cell is formed through the charging circuit.

As a specific embodiment of the method described with respect to fig. 2, the method further comprises:

determining the number G of charging circuits for charging the battery cells;

and a charging loop for charging the battery cell by switching on G charging circuits, wherein G is less than or equal to N.

Specifically, after a3 sends a charging instruction specifying a charging voltage to the power supply apparatus, if the power supply apparatus does not support outputting the charging voltage specified by the charging instruction, the power supply apparatus does not feed back a charging response to the electronic apparatus; accordingly, the control module in the electronic device does not receive the charging response within a preset time period, and determines data G. Then, the control module selects G charging circuits from the N charging circuits, and switches on the selected G charging circuits to charge the battery cell at the same time.

As a specific case of the present embodiment, G is different from K; therefore, when the control module does not receive the charging response corresponding to the charging instruction, the battery cell is not supported to be charged by the K charging circuits at the same time.

For example, the charging voltage specified by the charging instruction is a high voltage, and if the power supply device supports outputting the high voltage, the number of the charging circuits that the electronic device needs to be connected in parallel is at least K, where K is greater than G. Namely, K charging circuits which need to be connected in parallel charge the battery cell at the same time, and the K charging circuits share the charging current; the number of the charging circuits is less than K, so that the charging circuits cannot bear charging current and are easy to damage.

For another example, the charging voltage specified by the charging command is a low voltage, and if the power supply device supports outputting the low voltage, the number of charging circuits that the electronic device needs to be connected in parallel is at most K, where K is less than or equal to G. Namely, K charging circuits which need to be connected in parallel charge the battery cell at the same time, and the K charging circuits share the charging current; the number of the charging circuits reaches K, so that more charging circuits are needed, and the power loss is caused by the operation of more charging circuits.

As a specific case of the present embodiment, G is equal to K; no matter whether the power supply equipment supports outputting the charging voltage specified by the charging instruction or not, the control module controls the K charging circuits to be conducted, and meanwhile, the battery cores are charged by the K charging circuits connected in parallel.

As an optional implementation manner of the embodiment of the present invention, the determining the number M of the charging circuits that charge the battery cells includes:

determining the number M of charging circuits for charging the battery cells according to at least one of the following parameters.

Specifically, in the process of charging the battery cells by using charging circuits lower than M, if the control module receives a distributed charging instruction, the charging circuit for charging the battery cells by using the charging circuits of M is turned on; wherein M is specified by the distributed charging instruction, M is a positive integer, and M is greater than M.

Wherein the decentralized charging instruction is triggered by parameters, the parameters including: the charging instructions input by the user, the ambient temperature of the environment in which one or more electronic devices in the electronic device are located, and the operating state of the application.

As an implementation manner for triggering the distributed charging instruction by the parameter, the method specifically includes: and manually operating the electronic equipment and triggering the scattered charging instruction. The specific implementation manner of how to trigger the distributed charging instruction is not limited, for example, the electronic device provides a key or a menu, the distributed charging instruction is triggered when the user touches the key, and the user selectively triggers the distributed charging instruction through the menu.

It is worth mentioning that the parameters further include: the environmental temperature of the environment in which one or more electronic devices in the electronic equipment are located is higher than a temperature threshold; wherein, different working temperature ranges of different electronic devices are determined, and the highest temperature of the working temperature range is determined as the temperature threshold.

For example, one or more electronic devices to be operated in a low-temperature operation environment are screened in the electronic equipment; and adding a temperature detection module near the screened electronic device, and detecting the temperature (namely the ambient temperature) of the environment where the screened electronic device is located in real time through the temperature detection module. In this embodiment, a specific implementation manner of the temperature detection module is not limited, for example, a specific circuit included in the temperature detection module is not limited; for example, the temperature detection module may be implemented using a temperature sensor; for another example, the temperature detection module may be implemented using a thermistor. And for a certain screened electronic device, if the environment temperature of the electronic device is detected to be higher than the temperature threshold value corresponding to the electronic device (namely the parameter is generated), triggering the distributed charging instruction.

Preferably, the parameters include: the ambient temperature of the environment in which one or more electronic devices in the charging circuit are located is higher than a temperature threshold; wherein, different working temperature ranges of different electronic devices are determined, and the highest temperature of the working temperature range is determined as the temperature threshold.

For example, the temperature detection module detects the ambient temperature of the environment where each charging circuit is located in real time, and outputs the detected temperature to the control module. For a certain charging circuit, if the control module judges that the ambient temperature of the environment where the charging circuit is located, which is detected by the temperature detection module, is greater than the corresponding temperature threshold, triggering the dispersed charging instruction, and then performing the dispersed charging instruction; and the charging circuit is appointed by the scattered charging instruction, and the number of the charging circuits appointed by the scattered charging instruction is M. Wherein the charging circuit specified by the distributed charging instruction does not include: the charging circuit is located at an ambient temperature higher than a temperature threshold.

The parameters further include: ad hoc events that cause the electronic device to run up causing the electronic device to dissipate a large amount of heat, such as the running state of an application; the ad hoc event includes at least: 1, operating the electronic equipment to execute an application program at a high speed to cause the electronic equipment to emit a large amount of heat, wherein the event of executing the application program is the special event; such as an event that manipulates an electronic device to play a game, execute a game program; and 2, controlling a circuit in the electronic equipment to perform data acquisition and the like, wherein the circuit needs to work continuously, so that the electronic equipment emits a large amount of heat, and controlling the circuit in the electronic equipment to work continuously, namely the special event.

And in the process of charging the battery cells by using less than M charging circuits, after receiving a distributed charging instruction triggered by the parameters, charging the battery cells by using M parallel charging circuits. Charging the cells with M charging circuits has the following advantages over charging the cells with less than M charging circuits: because the M charging circuits input current to the battery cell in parallel, the current distributed to each charging circuit is relatively reduced, so that the heat dissipated by each charging circuit due to electric energy loss during charging is relatively reduced, and the environmental temperature of the environment where the resistor is located is relatively reduced.

As an optional implementation manner of the embodiment of the present invention, the charging method further includes:

disconnecting all charging circuits which are switched on and charge the battery cells when at least one of the following conditions is met:

wherein the conditions include: receiving a disconnection instruction input by a user, wherein the temperature of a battery cell of the electronic equipment is greater than or equal to a temperature threshold, the positive input voltage of the battery cell exceeds a third voltage threshold or is equal to the third voltage threshold, and the battery capacity of the battery cell is greater than or equal to a capacity threshold.

In this embodiment, the control module triggers the disconnect command when the condition is detected. When the control module receives a disconnection instruction, the switch module is controlled to disconnect the power pins of the charging interface from the electric connection with all the charging circuits, so that the charging loops of all the charging circuits for charging the battery core are disconnected.

It is worth mentioning that the conditions include at least three of the following:

first, the electronic device is triggered manually to generate the disconnect command. However, the manner how the electronic device is triggered to generate the disconnection command by human is not limited herein, for example: and triggering the disconnection instruction through a preset key on the electronic equipment.

Secondly, the control module generates the disconnection instruction when detecting the abnormal charging condition, wherein the abnormal charging condition for triggering the control module to generate the disconnection instruction needs to be preset; the settable abnormal charging conditions include, but are not limited to:

detecting the temperature of a battery cell in the process of charging the battery cell, wherein the detected temperature reaches or exceeds a temperature threshold (namely the temperature required by normal charging);

during the process of charging the battery cell, it is detected that the voltage input to the positive electrode of the battery cell exceeds the voltage that can be borne by normal charging (i.e., the third voltage threshold).

And thirdly, generating the disconnection instruction when the control module detects that the electric quantity of the battery cell is full. In the charging process, the voltage of the battery cell is detected in real time, the control module judges whether the battery cell is fully charged (that is, judges whether the electric quantity of the battery cell is greater than or equal to an electric quantity threshold value) according to the detected voltage, and if the battery cell is judged to be fully charged, the disconnection instruction is generated.

In this embodiment, once the control module receives the disconnection instruction, the control switch module disconnects the power pins of the charging interface from the electrical connections of all the charging circuits, disconnects the charging loops of all the charging circuits for charging the battery cell, and stops charging the battery cell.

It should be understood that, in the embodiment of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present invention.

It should be noted that the charging method provided by the embodiment of the present invention is applicable to the electronic device provided by the embodiment of the present invention.

Fig. 5 shows a constituent structure of an electronic device provided in an embodiment of the present invention, and for convenience of description, only a portion related to the embodiment of the present invention is shown.

As shown in fig. 5, the electronic device provided in this embodiment includes a charging interface 4, a control module 1, N charging circuits 3 connected in parallel, and an electric core 2, and further includes a switch module 5, where the N charging circuits 3 are connected in parallel between the switch module 5 and the electric core 2, the switch module 5 is connected between the charging interface 4 and the charging circuits 3, and the control module 1 is electrically connected to the switch module 5 and the N charging circuits 3, respectively;

the control module 1 is configured to: determining whether the charging circuit 3 connects the switch module 5 with the battery cell 2 in a short circuit manner or not in the process of sequentially charging the battery cell 2 through the charging interface 4, the switch module 5 and the M charging circuits 3, wherein M is less than or equal to N;

the control module 1 is further configured to: when the charging circuit 3 connects the switch module 5 to the battery cell 2 in a short circuit manner, the switch module 5 is controlled to disconnect the electric connection between the charging interface 4 and the charging circuit 3, so as to stop charging the battery cell 2 through the charging circuit 3.

Fig. 6 shows an optimized structure of an electronic device according to an embodiment of the present invention, and for convenience of description, only the portions related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to fig. 6, the control module 1 is electrically connected to a power pin of the charging interface 4;

the control module 1 is specifically configured to: and determining the voltage on a power supply pin of the charging interface 4, and when the voltage on the power supply pin is smaller than or equal to a first voltage threshold, determining that the charging circuit 3 connects the switch module 5 and the battery cell 2 in a short circuit manner.

Fig. 7 shows an optimized structure of an electronic device according to an embodiment of the present invention, and for convenience of description, only the portions related to the embodiment of the present invention are shown.

As an optional implementation manner of the embodiment of the present invention, referring to fig. 7, the control module 1 is electrically connected to the battery cell 2;

the control module 1 is specifically configured to: determining the voltage of the battery cell 2;

when the voltage of the battery cell 2 is greater than or equal to a second voltage threshold, it is determined that the charging circuit 3 short-circuits the switch module 5 with the battery cell 2.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to:

sending a charging instruction of a specified charging voltage to the power supply equipment;

receiving a charging response sent by the power supply equipment according to the charging instruction;

and conducting K charging circuits 3 to charge the battery core 2 according to the charging response, wherein K is less than or equal to N.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to:

determining a charging stage of the electronic equipment;

and determining the number K of the charging circuits 3 for charging the battery cells 2 according to the current charging stage.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to:

determining the number G of charging circuits 3 for charging the battery cells 2;

and switching on G charging circuits for charging the battery cell 2 by the charging circuits 3, wherein G is less than or equal to N, and G is different from K.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to:

determining the number M of charging circuits 3 for charging the cells 2 according to at least one of the following parameters:

wherein the parameters include: the method comprises the steps of inputting a decentralized charging instruction by a user, the ambient temperature of the environment where one or more electronic devices in the electronic equipment are located and the running state of an application program.

As an optional implementation manner of the embodiment of the present invention, the control module 1 is further configured to:

disconnecting all charging circuits, which are switched on by the charging circuit 3, to charge the battery cells 2 when at least one of the following conditions is met:

wherein the conditions include: receiving a disconnection instruction input by a user, the temperature of a battery cell 2 of the electronic device being greater than or equal to a temperature threshold, the positive input voltage of the battery cell 2 exceeding a third voltage threshold, and the electric quantity of the battery cell 2 being greater than or equal to an electric quantity threshold.

It should be understood that the electronic devices in fig. 5 to fig. 7 may correspond to the electronic devices in the method for charging the electronic devices shown in fig. 1 to fig. 4, and corresponding functions of the electronic devices in the method may be implemented, and for brevity, are not described again here.

Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the electronic device and each module described above may refer to corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed electronic device and method may be implemented in other ways. For example, the above-described embodiments of the electronic device are merely illustrative, and for example, the division of the modules is only one logical division, and the actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications, which are equivalent in performance or use, without departing from the inventive concept, should be considered as falling within the scope of the present invention as defined by the appended claims.

Claims (13)

1. A charging system for an electronic device, comprising a power supply device and an electronic device, wherein,

the power supply equipment is used for supplying power to the electronic equipment;

the electronic equipment comprises a charging interface, N parallel charging circuits, a switch module connected between the charging interface and the N parallel charging circuits, an electric core connected with the N parallel charging circuits, and a control module connected with the N parallel charging circuits and the switch module, wherein in the charging process of the electronic equipment, a charging electric signal sequentially passes through the charging interface, the switch module, M charging circuits and the electric core, M is less than or equal to N, and when at least one of the following conditions is met, the control module controls the switch module to disconnect a power pin of the charging interface from all the charging circuits:

receiving a disconnection instruction input by a user;

the temperature of the battery cell of the electronic equipment is greater than or equal to a temperature threshold value;

the positive input voltage of the battery cell is greater than or equal to a third voltage threshold;

the electric quantity of the battery core is greater than or equal to an electric quantity threshold value, wherein, in different charging stages of charging the battery core, a control module can adjust the value of M, wherein, in the process of charging the battery core by using charging circuits lower than M, if the control module receives a distributed charging instruction, M charging circuits are conducted to charge the battery core, N is a positive integer, and M is smaller than or equal to N, wherein, the distributed charging instruction is triggered by parameters, the parameters comprise one or more of a charging instruction input by a user, the environmental temperature of one or more electronic devices in the electronic equipment and the running state of an application program, when the environmental temperature of one or more devices in the electronic equipment is higher than the temperature threshold value, the distributed charging instruction is triggered, and when a special event causing the electronic equipment to run up and causing the electronic equipment to emit a large amount of heat occurs, the distributed charging instruction is triggered.

2. The charging system of the electronic device according to claim 1, wherein if the detected current flowing through the charging circuit is greater than a current threshold, the control module controls the switch module to disconnect the power pin of the charging interface from all of the charging circuits.

3. The charging system of the electronic device according to claim 1, wherein if the voltage of the electrical signal output by the charging circuit to the battery cell during the detected constant-voltage charging phase is greater than the voltage of the battery cell in the saturation state, the control module controls the switch module to disconnect the power pin of the charging interface from all the charging circuits.

4. The charging system for electronic equipment according to claim 1, wherein the power supply device outputs an electric signal of a voltage of 5V or more.

5. The charging system for electronic devices according to claim 4, wherein the power supply device outputs a voltage of 5V, 9V or 12V.

6. The electronic equipment is characterized by comprising a charging interface, N parallel charging circuits, a switch module connected between the charging interface and the N parallel charging circuits, an electric core connected with the N parallel charging circuits, and a control module connected with the N parallel charging circuits and the switch module, wherein in the charging process of the electronic equipment, a charging electric signal sequentially passes through the charging interface, the switch module, M charging circuits and the electric core, and M is less than or equal to N, wherein when at least one of the following conditions is met, the control module controls the switch module to disconnect a power pin of the charging interface from all the charging circuits:

receiving a disconnection instruction input by a user;

the temperature of the battery cell of the electronic equipment is greater than or equal to a temperature threshold value;

the positive input voltage of the battery cell is greater than or equal to a third voltage threshold;

the electric quantity of the battery core is greater than or equal to an electric quantity threshold value, wherein, in different charging stages of charging the battery core, a control module can adjust the value of M, wherein, in the process of charging the battery core by using charging circuits lower than M, if the control module receives a distributed charging instruction, M charging circuits are conducted to charge the battery core, N is a positive integer, and M is smaller than or equal to N, wherein, the distributed charging instruction is triggered by parameters, the parameters comprise one or more of a charging instruction input by a user, the environmental temperature of one or more electronic devices in the electronic equipment and the running state of an application program, when the environmental temperature of one or more devices in the electronic equipment is higher than the temperature threshold value, the distributed charging instruction is triggered, and when a special event causing the electronic equipment to run up and causing the electronic equipment to emit a large amount of heat occurs, the distributed charging instruction is triggered.

7. The electronic device of claim 6, wherein the control module controls the switch module to disconnect the power pin of the charging interface from all of the charging circuits if the detected current flowing through the charging circuits is greater than a current threshold.

8. The electronic device of claim 6, wherein if the detected voltage of the electrical signal output by the charging circuit to the battery cell in the constant-voltage charging phase is greater than the voltage of the battery cell in the saturation state, the control module controls the switch module to disconnect the power pin of the charging interface from all the charging circuits.

9. A method for charging electronic equipment is characterized in that the electronic equipment comprises a charging interface, N charging circuits connected in parallel, a switch module connected between the charging interface and the N charging circuits connected in parallel, an electric core connected with the N charging circuits connected in parallel, and a control module connected with the N charging circuits connected in parallel and the switch module, wherein in the charging process of the electronic equipment, a charging electric signal sequentially passes through the charging interface, the switch module, M charging circuits and the electric core, and M is less than or equal to N, and the method comprises the following steps:

when at least one of the following conditions is met, the control module controls the switch module to disconnect the power pin of the charging interface from all the charging circuits:

receiving a disconnection instruction input by a user;

the temperature of the battery cell of the electronic equipment is greater than or equal to a temperature threshold value;

the positive input voltage of the battery cell is greater than or equal to a third voltage threshold;

the electric quantity of the battery core is greater than or equal to an electric quantity threshold value, wherein, in different charging stages of charging the battery core, a control module can adjust the value of M, wherein, in the process of charging the battery core by using charging circuits lower than M, if the control module receives a distributed charging instruction, M charging circuits are conducted to charge the battery core, N is a positive integer, and M is smaller than or equal to N, wherein, the distributed charging instruction is triggered by parameters, the parameters comprise one or more of a charging instruction input by a user, the environmental temperature of one or more electronic devices in the electronic equipment and the running state of an application program, when the environmental temperature of one or more devices in the electronic equipment is higher than the temperature threshold value, the distributed charging instruction is triggered, and when a special event causing the electronic equipment to run up and causing the electronic equipment to emit a large amount of heat occurs, the distributed charging instruction is triggered.

10. The method for charging an electronic device according to claim 9, wherein the power supply device outputs an electric signal of a voltage of 5V or more.

11. The method for charging an electronic device of claim 9, wherein the power supply device outputs 5V, 9V, or 12V voltage.

12. The method for charging an electronic device of claim 9, further comprising:

and if the detected current flowing through the charging circuit is larger than the current threshold, the control module controls the switch module to disconnect the power pin of the charging interface from all the charging circuits.

13. The method for charging an electronic device of claim 9, further comprising:

and if the detected voltage of the electric signal output to the battery cell by the charging circuit in the constant-voltage charging stage is greater than the voltage of the battery cell in the saturation state, the control module controls the switch module to disconnect the power pin of the charging interface from all the charging circuits.