Charging module and electronic equipment

Abstract

The utility model relates to a charging module and electronic equipment. The charging module comprises a battery assembly; a charging port; the first charging circuit and the second charging circuit are arranged in parallel and are both connected between the charging port and the battery assembly; the first charging circuit is used for charging the battery assembly when it is detected that the charging port transmits the electric signal and the current voltage of the battery assembly is larger than or equal to a first preset voltage threshold value and smaller than a second preset voltage threshold value; the second charging circuit is used for charging the battery assembly after the charging voltage of the battery assembly charged based on the first charging circuit reaches a third preset voltage threshold value; wherein the charging power of the first charging circuit for charging the battery assembly is greater than the charging power of the second charging circuit for charging the battery assembly. According to the embodiment of the invention, the charging electric quantity of each charging of the battery assembly can be improved, and the user experience and the endurance competitiveness of a product corresponding to the charging module can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of charging technology, and more particularly to a charging module and electronic device. Background Technology

[0002] With the advancement and development of technology, electronic devices such as mobile phones and tablets are constantly being updated and iterated, bringing more and more convenience to people's daily production and life.

[0003] Currently, in pursuit of faster charging speeds, electronic devices charge batteries with less current than with normal current. This is especially true when the battery's internal resistance doubles, making it difficult to fully utilize the battery's effective capacity, resulting in less charge per charge and shorter battery life. Utility Model Content

[0004] To overcome the problems existing in the related technologies, this disclosure provides a charging module and electronic device that can increase the charging capacity of the battery pack per charge, improve the user experience, and enhance the battery life competitiveness of the corresponding product.

[0005] According to a first aspect of the present disclosure, a charging module is provided, comprising at least:

[0006] Battery components;

[0007] Charging port;

[0008] The first charging circuit and the second charging circuit are arranged in parallel and are both connected between the charging port and the battery assembly.

[0009] The first charging circuit is used to charge the battery assembly when it detects that the charging port is transmitting an electrical signal and that the current voltage of the battery assembly is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold.

[0010] The second charging circuit is used to charge the battery assembly after the charging voltage of the battery assembly charged based on the first charging circuit reaches a third preset voltage threshold.

[0011] Wherein, the first preset voltage threshold is less than the second preset voltage threshold, and the second preset voltage threshold is less than the third preset voltage threshold; the charging power of the first charging circuit for charging the battery assembly is greater than the charging power of the second charging circuit for charging the battery assembly.

[0012] In some embodiments, when an electrical signal is detected being transmitted through the charging port and the current voltage of the battery assembly is less than the first preset voltage threshold, the second charging circuit is in a conducting state and the first charging circuit is in a disconnected state.

[0013] When the current voltage of the battery assembly reaches the third preset voltage threshold, both the first charging circuit and the second charging circuit are disconnected.

[0014] In some embodiments, the duration for which both the first charging circuit and the second charging circuit are in the disconnected state is a preset duration.

[0015] In some embodiments, the charging module further includes:

[0016] A boost module is disposed on the first charging circuit and connected between the charging port and the battery assembly, for boosting the input voltage of the charging port and then inputting it to the battery assembly;

[0017] A power management chip is disposed on the second charging circuit and connected between the charging port and the battery assembly. It is used to monitor the voltage of the battery assembly and turn the second charging circuit on or off according to the voltage of the battery assembly.

[0018] In some embodiments, the charging module further includes:

[0019] A level conversion module is disposed on the second charging circuit and connected between the power management chip and the battery assembly. It is used to convert the input voltage and input current of the charging port when the battery assembly is charging, and to convert the voltage and current of the battery assembly when the battery assembly is discharging.

[0020] In some embodiments, the level conversion module includes a first port and a second port;

[0021] The first port is connected to the power management chip, and the second port is connected to the positive terminal of the battery assembly; the boost module is connected to the positive terminal of the battery assembly, and the negative terminal of the battery assembly is grounded.

[0022] In some embodiments, the charging module further includes:

[0023] A protection module is disposed on the second charging circuit and connected between the charging port and the power management chip. It is used to disconnect the connection between the charging port and the power management chip when the input voltage of the charging port is greater than a fourth preset voltage threshold.

[0024] In some embodiments, the battery assembly includes at least two battery cells connected in series or in parallel.

[0025] According to a second aspect of the present disclosure, an electronic device is provided, comprising at least:

[0026] The charging module as described in the first aspect;

[0027] A control module is connected to the first charging circuit and the second charging circuit of the charging module, and is used to control the on / off state of the first charging circuit and the second charging circuit.

[0028] In some embodiments, the boost module of the charging module is disposed on the first charging circuit, and the power management chip of the charging module is disposed on the second charging circuit;

[0029] The control module is electrically connected to the boost module and the power management chip, and is used to control the boost module to turn on or off the first charging circuit, and to control the power management chip to turn on or off the second charging circuit.

[0030] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0031] This disclosure provides a charging module and an electronic device. The charging module includes: a battery assembly; a charging port; a first charging circuit and a second charging circuit, arranged in parallel and both connected between the charging port and the battery assembly; the first charging circuit is used to charge the battery assembly when it detects an electrical signal transmitted through the charging port and when the current voltage of the battery assembly is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold; the second charging circuit is used to charge the battery assembly after the charging voltage of the battery assembly based on the first charging circuit reaches a third preset voltage threshold; wherein the first preset voltage threshold is less than the second preset voltage threshold, the second preset voltage threshold is less than the third preset voltage threshold, and the charging power of the first charging circuit for charging the battery assembly is greater than the charging power of the second charging circuit for charging the battery assembly.

[0032] Thus, this embodiment of the present disclosure can set up a first charging circuit and a second charging circuit connected in parallel between the charging port and the battery component. When the charging port transmits an electrical signal and the current voltage of the battery component is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold, the first charging circuit with higher charging power is used to charge the battery component first. Then, after the charging voltage of the battery component based on the first charging circuit reaches a third preset voltage threshold, the second charging circuit with lower charging power is used to charge the battery component. This enables the first charging circuit to quickly charge the battery component and the second charging circuit to supplement the charging component each time the battery component is charged, thereby increasing the charging capacity of the battery component each time it is charged, improving the user experience, and enhancing the battery life competitiveness of the corresponding product.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0035] Figure 1 This is a schematic diagram of the structure of a charging module according to an exemplary embodiment. Figure 1 .

[0036] Figure 2 This is a schematic diagram of the structure of a charging module according to an exemplary embodiment. Figure 2 .

[0037] Figure 3 This is a schematic diagram of the structure of a charging module according to an exemplary embodiment. Figure 3 .

[0038] Figure 4 This is a charging timing diagram of a charging module according to an exemplary embodiment.

[0039] Figure 5 This is a structural block diagram of an electronic device according to an exemplary embodiment.

[0040] Figures 1 to 3 Chinese figure labels:

[0041] 10-Charging module, 11-Battery assembly, 12-Charging port, 13-First charging circuit, 14-Second charging circuit, 131-Boost module, 141-Power management chip, 142-Level conversion module, 143-Protection module. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of structures consistent with some aspects of this disclosure as detailed in the appended claims.

[0043] The technical solutions provided by the various embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0044] In related technologies, in order to pursue charging speed, the cutoff current of the battery is usually around 1.5 amps (A). However, due to its chemical characteristics, the lithium-ion batteries used in electronic devices can only charge less under high current than under normal current. Especially when the internal resistance of the battery doubles (such as the dual-string batteries set in high-voltage devices such as tablet computers), the effective capacity of the battery is difficult to be fully utilized, resulting in less charge per charge and shorter battery life.

[0045] Based on this, the present disclosure provides a charging module. Figure 1 This is a schematic diagram of the structure of a charging module according to an exemplary embodiment. Figure 1 ,like Figure 1 As shown, the charging module 10 may include:

[0046] Battery assembly 11;

[0047] Charging port 12;

[0048] The first charging circuit 13 and the second charging circuit 14 are arranged in parallel and are both connected between the charging port 12 and the battery assembly 11.

[0049] The first charging circuit 13 is used to charge the battery assembly 11 when it detects that the charging port 12 is transmitting an electrical signal and the current voltage of the battery assembly 11 is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold.

[0050] The second charging circuit 14 is used to charge the battery assembly 11 after the charging voltage of the battery assembly 11 charged based on the first charging circuit 13 reaches a third preset voltage threshold.

[0051] Wherein, the first preset voltage threshold is less than the second preset voltage threshold, and the second preset voltage threshold is less than the third preset voltage threshold; the charging power of the first charging circuit 13 for charging the battery assembly 11 is greater than the charging power of the second charging circuit 14 for charging the battery assembly 11.

[0052] In this embodiment of the disclosure, the charging module can be installed in an electronic device; the electronic device can include at least two charging modes, fast charging and slow charging, to improve the battery life of the electronic device through different charging circuits.

[0053] The aforementioned charging port can be a hardware interface, located on the casing of the electronic device, used to connect an external charger to enable charging of the battery components. For example, the charging port may include, but is not limited to, a Universal Serial Bus (USB) interface, a Lightning interface, or a DC power interface; among which, the USB interface may include, for example, a USB Type-A interface, a Micro USB interface, and a USB Type-C interface.

[0054] Here, the battery assembly can be a component that supplies power to the electrical modules in an electronic device; for example, the battery assembly can be a lithium-ion battery or a lithium polymer battery, etc.

[0055] In some embodiments, the battery assembly includes at least two battery cells connected in series or parallel. When the battery assembly includes at least two battery cells, the internal resistance of the battery assembly increases; in this case, when the battery assembly is fast-charged, the voltage of the battery assembly, i.e., the cell voltage, rises more significantly than that of a single-cell ordinary battery, and the voltage drop after fast charging is stopped is also greater. This embodiment of the present disclosure improves the charging capacity of a battery assembly including at least two battery cells by first using a first charging circuit with high charging power to fast charge the battery assembly when the current voltage of the battery assembly is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold, and then using a second charging circuit with low charging power to supplement the charging.

[0056] It should be noted that the specific number of battery cells included in the battery assembly can be set according to the actual application scenario, and this disclosure does not impose any restrictions.

[0057] In this embodiment of the present disclosure, the first charging circuit can be a circuit in the charging module used for fast charging; the second charging circuit can be a circuit in the charging module used for normal charging, i.e., slow charging. In this embodiment of the present disclosure, the charging power of the battery assembly charged by the first charging circuit can be greater than the charging power of the battery assembly charged by the second charging circuit.

[0058] Here, the first charging circuit can be connected between the charging port and the positive terminal of the battery pack, and the second charging circuit can also be connected between the charging port and the positive terminal of the battery pack; that is, the first charging circuit and the second charging circuit can be connected in parallel, and the negative terminal of the battery pack can be connected to the ground wire.

[0059] The first preset voltage threshold can be the power-on voltage of the electronic device where the charging module is located; for example, the first preset voltage threshold can be 3.7 volts (V). The second preset voltage threshold can be the voltage threshold at which the battery component requires fast charging and does not require fast charging; for example, the second preset voltage threshold can be 4.5V.

[0060] Understandably, if the current voltage of the battery module is greater than or equal to the first preset voltage threshold, the battery module is in a working state, meaning the electronic device containing the battery module is powered on. However, if the current voltage of the battery module is greater than or equal to the first preset voltage threshold but less than the second preset voltage threshold, the battery module is in a working state, but its voltage is insufficient, meaning its charge is low (e.g., less than 80% or 90%), thus requiring fast charging.

[0061] Here, when the charging port transmits an electrical signal and the current voltage of the battery component is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold, that is, when the charger is plugged into the charging port and the battery component reaches the power-on voltage of the electronic device but does not reach the voltage threshold for fast charging or not fast charging, the first charging circuit in the charging module can be in a conducting state and the second charging circuit can be in a disconnected state. At this time, the battery component can be in fast charging mode, that is, the charger can quickly charge the battery component through the first charging circuit to speed up the charging speed of the battery component.

[0062] In addition, when the charging port transmits an electrical signal and the current voltage of the battery module is greater than or equal to the second preset voltage threshold, the battery module is in working state and the voltage of the battery module is sufficient, that is, the battery module has sufficient power, such as greater than or equal to 80% or 90%; at this time, the battery module does not need to be fast charged, and can be slowly charged using the second charging circuit.

[0063] The aforementioned third preset voltage threshold can be the cutoff voltage of the battery pack when it is in fast charging mode, that is, the highest charging voltage reached by the battery pack when it is in fast charging mode; for example, the third preset voltage threshold can be 4.55V, etc. When the voltage of the battery pack reaches the third preset voltage threshold, the first charging circuit is disconnected, and the charger stops fast charging the battery pack to prevent overcharging, damage to the battery pack, or safety issues.

[0064] Understandably, each time the battery module is charged—that is, when an electrical signal is detected at the charging port and the current voltage of the battery module is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold—the battery module can be fast-charged first, i.e., the first charging circuit is in a conducting state and the second charging circuit is in a disconnected state. Then, after the charging voltage of the battery module based on the first charging circuit reaches a third preset voltage threshold, the battery module is supplemented with charging. That is, the second charging circuit can only be turned on after the first charging circuit switches from a conducting state to a disconnected state, so as to supplement the battery module with charging through the second charging circuit corresponding to the slow charging mode, thereby increasing the charging capacity of the battery module each time it is charged.

[0065] In addition, when the battery pack's charge is too low to power on the electronic device (i.e., the current voltage of the battery pack is less than the first preset voltage threshold), after the charger is plugged into the charging port, the second charging circuit will first use a low-current charging mode to slowly restore the battery pack's charge, avoiding excessive impact on the battery pack and thus completing the power-on activation of the electronic device. Then, when the battery pack reaches the power-on voltage of the electronic device (i.e., the current voltage of the battery pack is greater than or equal to the first preset voltage threshold), it will be charged using a slow charging strategy after fast charging is cut off, so as to make full use of the hardware resources of the electronic device, improve the user experience, and enhance the battery life competitiveness of the product corresponding to the charging module.

[0066] It should be noted that the first preset voltage threshold, the second preset voltage threshold, and the third preset voltage threshold can all be selected according to the battery capacity set in the electronic device in the actual application scenario, as long as the first preset voltage threshold is less than the second preset voltage threshold and less than the third preset voltage threshold. This disclosure embodiment does not impose any restrictions.

[0067] In some embodiments, when an electrical signal is detected being transmitted through the charging port and the current voltage of the battery assembly is less than a first preset voltage threshold, the second charging circuit is in a conducting state and the first charging circuit is in a disconnected state.

[0068] When the current voltage of the battery assembly reaches the third preset voltage threshold, both the first charging circuit and the second charging circuit are disconnected.

[0069] In this way, the battery module can be charged using different charging circuits by switching the first and second charging circuits on and off when the battery module voltage is in different states. This can improve the charging capacity of the battery module per charge, effectively enhance the user experience and the battery life competitiveness of the corresponding product.

[0070] In this embodiment of the disclosure, the current voltage of the battery component is less than a first preset voltage threshold, which can be understood as the battery component's power being too low to power on the electronic device; that is, the battery component is in a non-working state, i.e., the electronic device is in a powered-off state.

[0071] Here, when the charging port transmits an electrical signal and the current voltage of the battery module is less than the first preset voltage threshold, the first charging circuit in the charging module can be in the off state, while the second charging circuit can be in the on state; that is, when the battery module's power is so low that the electronic device is turned off, the charger can slowly charge the battery module through the second charging circuit to slowly restore the battery module's power.

[0072] Understandably, when the charger performs fast charging on the battery module through the first charging circuit, and the current voltage of the battery module reaches the third preset voltage threshold, both the first charging circuit and the second charging circuit in the charging module can be disconnected. At this time, both the first charging circuit and the second charging circuit stop charging the battery module, and the voltage of the battery module can drop after the fast charging is cut off, that is, the voltage of the battery module will decrease from the third preset voltage threshold.

[0073] Next, when the current voltage of the battery module drops from the third preset voltage threshold to a stable state, and the voltage of the battery module in the stable state is less than the fifth preset voltage threshold, the second charging circuit in the charging module can be in the conducting state, while the first charging circuit can be in the disconnected state. That is to say, when the current voltage of the battery module drops to a stable state after fast charging is cut off, the charger can slowly charge the battery module through the second charging circuit to actively replenish the battery module until the fifth preset voltage threshold is reached.

[0074] In this embodiment, the fifth preset voltage threshold can be the cutoff voltage of the battery module in slow charging mode, i.e., the highest charging voltage reached by the battery module in slow charging mode; for example, the fifth preset voltage threshold can be 4.4V or 4.35V, etc. When the current voltage of the battery module reaches the fifth preset voltage threshold, both the first charging circuit and the second charging circuit are disconnected; at this time, the battery module is fully charged, and the charger can stop charging the battery module. The voltage value at which the battery module's voltage drops to a stable state after fast charging is cut off can be, for example, 4.2V, etc.

[0075] It should be noted that the first preset voltage threshold, the third preset voltage threshold, the voltage value of the battery module after fast charging is cut off and the voltage drop to a stable state, and the fifth preset voltage threshold can all be selected according to the battery capacity set in the electronic device in the actual application scenario. As long as the first preset voltage threshold is less than the voltage value of the battery module after fast charging is cut off and the voltage drop to a stable state is less than the fifth preset voltage threshold and less than the third preset voltage threshold, this disclosed embodiment does not impose any restrictions.

[0076] In some embodiments, the duration for which both the first charging circuit and the second charging circuit are in the off state is a preset duration. Thus, by limiting the duration for which both the first and second charging circuits are in the off state, the voltage drop of the battery pack after fast charging is stopped can be stabilized, thereby enabling more accurate activation of the slow charging mode of the battery pack, improving the precision of replenishing the battery pack, and effectively increasing the charging capacity of the battery pack per charge.

[0077] In this embodiment of the disclosure, the duration during which both the first charging circuit and the second charging circuit are in the disconnected state can be understood as the duration during which the battery assembly stops charging after fast charging is cut off, that is, the interval between the battery assembly being in fast charging mode and being in slow charging mode.

[0078] It should be noted that the preset duration can be set according to the actual application scenario, and this embodiment does not impose any limitations. For example, the preset duration can be 10 minutes, 12 minutes, or 15 minutes, etc.

[0079] This disclosure provides a charging module, comprising: a battery assembly; a charging port; a first charging circuit and a second charging circuit, connected in parallel and both connected between the charging port and the battery assembly; the first charging circuit is used to charge the battery assembly when it detects an electrical signal transmitted through the charging port and when the current voltage of the battery assembly is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold; the second charging circuit is used to charge the battery assembly after the charging voltage of the battery assembly charged by the first charging circuit reaches a third preset voltage threshold; wherein the first preset voltage threshold is less than the second preset voltage threshold, the second preset voltage threshold is less than the third preset voltage threshold, and the charging power of the first charging circuit charging the battery assembly is greater than the charging power of the second charging circuit charging the battery assembly.

[0080] Thus, this embodiment of the present disclosure can set up a first charging circuit and a second charging circuit connected in parallel between the charging port and the battery component. When the charging port transmits an electrical signal and the current voltage of the battery component is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold, the first charging circuit with higher charging power is used to charge the battery component first. Then, after the charging voltage of the battery component based on the first charging circuit reaches a third preset voltage threshold, the second charging circuit with lower charging power is used to charge the battery component. This enables the first charging circuit to quickly charge the battery component and the second charging circuit to supplement the charging component each time the battery component is charged, thereby increasing the charging capacity of the battery component each time it is charged, improving the user experience, and enhancing the battery life competitiveness of the corresponding product.

[0081] In some embodiments, such as Figure 2 As shown, the charging module 10 also includes:

[0082] The boost module 131 is disposed on the first charging circuit 13 and connected between the charging port 12 and the battery assembly 11, and is used to boost the input voltage of the charging port 12 and input it to the battery assembly 11.

[0083] The power management chip 141 is disposed on the second charging circuit 14 and connected between the charging port 12 and the battery assembly 11. It is used to monitor the voltage of the battery assembly 11 and turn the second charging circuit 14 on or off according to the voltage of the battery assembly 11.

[0084] In this way, by setting a boost module on the first charging circuit and a power management chip on the second charging circuit, the first charging circuit can quickly charge the battery pack and the second charging circuit can supplement the battery pack during each charging cycle. This can effectively increase the charging capacity of the battery pack per charge, thereby improving the user experience and the battery life competitiveness of the corresponding product.

[0085] In this embodiment of the disclosure, the boost module can be a converter in the charging module connected between the charging port and the battery assembly, which boosts the voltage according to a preset ratio; for example, the boost module can be a charge pump. A charge pump, also known as a switched capacitor voltage converter, is a voltage converter that uses a so-called "fast" or "pumping" capacitor to store energy; the charge pump can use a capacitor as an energy storage element and use some switching devices to control the voltage connected to the capacitor.

[0086] It should be noted that the preset ratio can include, but is not limited to, 2:1, 4:2 or 6:3; for example, the boost module can use a 4:2 charge pump to boost the input voltage of the charging port, such as 4V, to 8V according to a 4:2 ratio, and then supply it to the battery pack for charging, so as to reduce the charging time of the battery pack.

[0087] Here, the aforementioned power management integrated circuit (PMIC) can be placed in the second charging circuit and connected between the charging port and the battery pack. It can perform the functions of monitoring the voltage of the battery pack, converting, distributing, detecting, and managing other electrical energy in the charging module. The power management chip can control and monitor the input and output of various voltages and currents in the charging module, thereby ensuring the stable and safe operation of the charging module.

[0088] Understandably, when a charger is plugged into the charging port of an electronic device that is powered on, i.e. after the charger and the electronic device have shaken hands, the power management chip can identify the proprietary fast charging protocol carried in the request sent by the charger to the electronic device. At this time, the power management chip can inform the processor of the electronic device that the battery pack can be fast charged. The processor then controls the boost module, such as the charge pump, on the first charging circuit to work, so as to achieve fast charging of the battery pack until charging is cut off, i.e., the voltage of the battery pack reaches the third preset voltage threshold.

[0089] When the power management chip detects that the battery module voltage has reached the third preset voltage threshold, such as 4.55V, it can notify the processor to cut off fast charging. The processor then controls the boost module to stop working. When the power management chip detects that the battery module voltage has dropped from the third preset voltage threshold to a stable state, such as 4.2V, and the current voltage of the battery module (4.2V) is less than the fifth preset voltage threshold, such as 4.4V, the power management chip can notify the processor. The processor then controls the second charging circuit to actively replenish the battery module until it reaches the fifth preset voltage threshold, thus completing the charging of the battery module.

[0090] It should be noted that when the power management chip detects that the voltage of the battery component has dropped from the third preset voltage threshold to less than the fifth preset voltage threshold, the power management chip may also control the second charging circuit to work by adjusting the on / off state of each switch in its own structure without informing the processor of the electronic device. This disclosure does not impose any limitations.

[0091] In some embodiments, such as Figure 2 As shown, the charging module 10 also includes:

[0092] The level conversion module 142 is disposed on the second charging circuit 14 and connected between the power management chip 141 and the battery assembly 11. It is used to convert the input voltage and input current of the charging port 12 when the battery assembly 11 is charging, and to convert the voltage and current of the battery assembly 11 when the battery assembly 11 is discharging.

[0093] In this way, by setting a level conversion module connected between the power management chip and the battery pack in the second charging circuit, the voltage and current can be converted when the battery pack is charging and discharging, thereby better realizing the charging and discharging function of the battery pack and improving the battery life of the electronic device in which the charging module is located.

[0094] In this embodiment of the disclosure, the level conversion module can be a component in the charging module that can realize bidirectional voltage and current conversion; for example, the level conversion module can be a bidirectional level conversion chip or a charge pump integrated chip, etc.

[0095] Understandably, when the charger charges the battery pack through the second charging circuit, the input voltage and input current of the charging port are transmitted to the level conversion module via the power management chip. The level conversion module can convert the input voltage and input current respectively to transmit the converted input voltage and input current to the battery pack. At this time, the level conversion module can increase the input voltage of the charging port and decrease the input current of the charging port.

[0096] When the battery pack discharges to the power consumption module of the electronic device through the level conversion module and the power management chip, the level conversion module can convert the voltage and current of the battery pack respectively, so as to transmit the converted voltage and current to the power consumption module through the power management chip; at this time, the level conversion module can reduce the output voltage of the battery pack and increase the output current of the battery pack.

[0097] For example, when the battery pack is charging, the level conversion module can use a 2:1 charge pump to boost the input voltage of the charging port, such as 4V, to 8V in a 2:1 ratio before supplying it to the battery pack for charging; when the battery pack is discharging, the level conversion module can use a 1:2 charge pump to reduce the input voltage of the battery pack, such as 8V, to 4V in a 1:2 ratio before supplying it to the power supply module of the electronic device.

[0098] In some embodiments, such as Figure 2 As shown, the level conversion module 142 includes a first port VBAT and a second port VBATT;

[0099] The first port VBAT is connected to the power management chip 141, and the second port VBATT is connected to the positive terminal of the battery pack 11; the boost module 131 is connected to the positive terminal of the battery pack 11, and the negative terminal of the battery pack 11 is grounded.

[0100] In this way, by connecting the second port of the level conversion module and the boost module to the positive terminal of the battery pack, and grounding the negative terminal of the battery pack, the fast charging and recharging functions of the battery pack can be realized more reasonably, thereby effectively improving the charging capacity of the battery pack.

[0101] Here, the first port mentioned above can be a port in the level conversion module connected to the port monitoring the voltage of the battery assembly; for example, the first port can be a VBAT port. The second port mentioned above can be a port in the level conversion module connected to the positive terminal of the charging section; for example, the second port can be a VBATT port.

[0102] It should be noted that the port connected to the positive terminal of the battery pack in the boost module can also be a VBATT port; while the port connected to the charging port in the boost module can be a VBUS port, which is a port capable of receiving input voltage or current. Similarly, the port connected to the first port of the level conversion module in the power management chip can also be a VBAT port; and the port connected to the charging port in the power management chip can also be a VBUS port.

[0103] In some embodiments, such as Figure 3 As shown, the charging module 10 also includes:

[0104] The protection module 143 is disposed on the second charging circuit 14 and connected between the charging port 12 and the power management chip 141. It is used to disconnect the connection between the charging port 12 and the power management chip 141 when the input voltage of the charging port 12 is greater than the fourth preset voltage threshold.

[0105] In this way, by setting a protection module between the power management chip on the charging port and the second charging circuit, the connection between the charging port and the power management chip can be disconnected when the input voltage of the charging port is greater than the fourth preset voltage threshold. This can reduce the risk of damage to the second charging circuit, improve the safety of the charging module, and extend the service life of the charging module.

[0106] Here, when the input voltage of the charging port is greater than the fourth preset voltage threshold, the second charging circuit can be in the off state; when the input voltage of the charging port is less than or equal to the fourth preset voltage threshold, the second charging circuit can be in the on state or the off state.

[0107] In this embodiment, the protection module may include a power switch or a load switch, which automatically turns off when the input voltage of the charging port is detected to be greater than a fourth preset voltage threshold, i.e., when the circuit is overloaded, thereby disconnecting the connection between the charging port and the power management chip. The protection module may also include an overvoltage protection chip, used to trigger a fuse and disconnect the connection between the charging port and the power management chip when the input voltage of the charging port is greater than the fourth preset voltage threshold.

[0108] It should be noted that the fourth preset voltage threshold can be preset by technicians based on the maximum voltage value in the charging module under actual application scenarios, such as a voltage value greater than the third preset voltage threshold. This disclosure does not impose any restrictions.

[0109] In some embodiments, such as Figure 4 As shown, S1 indicates the conduction time of the second charging circuit when the voltage of the battery pack is less than the first preset voltage threshold, such as 3.7V; S2 indicates the conduction time of the first charging circuit when the voltage of the battery pack rises from 3.7V to the third preset voltage threshold, such as 4.55V; S3 indicates the disconnection time of the first and second charging circuits when the voltage of the battery pack drops from 4.55V to 4.2V; and S4 indicates the conduction time of the second charging circuit when the voltage of the battery pack rises from 4.2V to the fifth preset voltage threshold, such as 4.4V.

[0110] For example, when the battery pack's charge is low enough to power on the electronic device, i.e., when the current voltage of the battery pack is less than a first preset voltage threshold such as 3.7V, the first charging circuit in the charging module is in the off state, and the second charging circuit is in the on state. At this time, the charger can slowly charge the battery pack through the second charging circuit to slowly restore the battery pack's charge.

[0111] When the battery pack reaches the power-on voltage of the electronic device, which is greater than or equal to the first preset voltage threshold, the charger can shake hands with the electronic device. The PMIC can identify the private fast charging protocol carried in the request sent by the charger to the electronic device. At this time, the PMIC can inform the processor of the electronic device that the battery pack can be fast charged. The processor then controls the boost module, such as the charge pump, on the first charging circuit to work to achieve fast charging of the battery pack until charging is cut off, that is, the voltage of the battery pack reaches the third preset voltage threshold, such as 4.55V.

[0112] When the PMIC detects that the battery module voltage has reached the third preset voltage threshold, the PMIC can notify the processor of the fast charging cutoff message, and the processor will then control the boost module to stop working. When the PMIC detects that the battery module voltage has dropped from the third preset voltage threshold to a stable state, such as 4.2V, that is, when the battery module voltage is less than the fifth preset voltage threshold, such as 4.4V, the PMIC can notify the processor of this message, and the processor will then control the second charging circuit to actively replenish the battery module until it reaches the fifth preset voltage threshold, thus completing the charging of the battery module.

[0113] An electronic device provided in this disclosure may include at least:

[0114] The charging module as described in the above embodiments of this disclosure;

[0115] The control module is connected to the first charging circuit and the second charging circuit of the charging module, and is used to control the on / off state of the first charging circuit and the second charging circuit.

[0116] In this embodiment of the disclosure, the aforementioned electronic device can be any device with fast charging capability, such as a mobile phone, tablet personal computer, personal digital assistant (PDA), mobile internet device (MID), wearable device, etc.

[0117] It should be noted that the control module can be a central processing unit (CPU) or a system on chip (SOC) of an electronic device, and this disclosure does not impose any limitations.

[0118] It is understood that when the voltage of the battery component in the charging module is in different states, the embodiments of this disclosure can control the on / off state of the first charging circuit and the second charging circuit of the charging module through the control module, so that the battery component is in different charging modes, thereby increasing the charging capacity of the battery component each time, improving the user experience and the battery life competitiveness of electronic devices.

[0119] In some embodiments, the boost module of the charging module is disposed on the first charging circuit, and the power management chip of the charging module is disposed on the second charging circuit.

[0120] The control module is electrically connected to the boost module and the power management chip, and is used to control the boost module to turn on or off the first charging circuit, and to control the power management chip to turn on or off the second charging circuit.

[0121] In this way, by setting up an electrical connection between the boost module on the first charging circuit and the power management chip on the second charging circuit, the boost module can be controlled to turn the first charging circuit on or off, and the power management chip can be controlled to turn the second charging circuit on or off. This allows the first charging circuit to perform fast charging of the battery pack and the second charging circuit to perform supplementary charging of the battery pack each time the battery pack is charged, thereby effectively increasing the charging capacity of the battery pack per charge.

[0122] Here, the control module can be electrically connected to the controlled switch or other switching components in the boost module, or to the controlled switch or other switching components in the power management chip. The control module controls the boost module to turn on or off the first charging circuit and controls the power management chip to turn on or off the second charging circuit by inputting control signals of different levels to the controlled switch or other switching components.

[0123] This disclosure provides an electronic device that can establish a first charging circuit and a second charging circuit connected in parallel between the charging port and the battery component. When a charging port transmits an electrical signal and the current voltage of the battery component is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold, a control module first controls the first charging circuit with higher charging power to charge the battery component. Then, after the charging voltage of the battery component based on the first charging circuit reaches a third preset voltage threshold, the second charging circuit with lower charging power is controlled to charge the battery component. This allows the first charging circuit to quickly charge the battery component and the second charging circuit to supplement the charging during each charging cycle, thereby increasing the charging capacity of the battery component per charge, improving the user experience, and enhancing the battery life competitiveness of the electronic device.

[0124] Figure 5 This is a structural block diagram of an electronic device according to an exemplary embodiment. For example, the electronic device 500 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0125] Reference Figure 5 The electronic device 500 may include one or more of the following components: processing component 502, memory 504, power supply component 506, multimedia component 508, audio component 510, input / output (I / O) interface 512, sensor component 514, and communication component 516.

[0126] Processing component 502 typically controls the overall operation of electronic device 500, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 502 may include one or more processors 520 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 502 may include one or more modules to facilitate interaction between processing component 502 and other components. For example, processing component 502 may include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.

[0127] Memory 504 is configured to store various types of data to support the operation of electronic device 500. Examples of such data include at least one of the following: instructions for any application or method operating on electronic device 500, contact data, phonebook data, messages, pictures, and videos. Memory 504 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, 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 storage, flash memory, magnetic disk, or optical disk.

[0128] Power supply component 506 provides power to various components of electronic device 500. Power supply component 506 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 500.

[0129] Multimedia component 508 includes a screen that provides an output interface between electronic device 500 and user. 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 touchscreen to receive input signals from the user. The Touch Panel includes one or more touch sensors to sense touches, swipes, and gestures on the Touch Panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 508 includes a front-facing camera and / or a rear-facing camera. When electronic device 500 is in an operating mode, such as a shooting mode or video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0130] Audio component 510 is configured to output and / or input audio signals. For example, audio component 510 includes a microphone (MIC) configured to receive external audio signals when electronic device 500 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 504 or transmitted via communication component 516. In some embodiments, audio component 510 also includes a speaker for outputting audio signals.

[0131] I / O interface 512 provides an interface between processing component 502 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0132] Sensor assembly 514 includes one or more sensors for providing state assessments of various aspects of electronic device 500. For example, sensor assembly 514 may detect the on / off state of electronic device 500, the relative positioning of components such as the display and keypad of electronic device 500, changes in position of electronic device 500 or one of its components, the presence or absence of user contact with electronic device 500, orientation or acceleration / deceleration of electronic device 500, and temperature changes of electronic device 500. Sensor assembly 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 514 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 514 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.

[0133] Communication component 516 is configured to facilitate wired or wireless communication between electronic device 500 and other devices. Electronic device 500 can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 516 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.

[0134] In an exemplary embodiment, the electronic device 500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0135] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0136] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0137] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A charging module, characterized in that, include: Battery components; Charging port; The first charging circuit and the second charging circuit are arranged in parallel and are both connected between the charging port and the battery assembly. The first charging circuit is used to charge the battery assembly when it detects that the charging port is transmitting an electrical signal and that the current voltage of the battery assembly is greater than or equal to a first preset voltage threshold and less than a second preset voltage threshold. The second charging circuit is used to charge the battery assembly after the charging voltage of the battery assembly charged based on the first charging circuit reaches a third preset voltage threshold. Wherein, the first preset voltage threshold is less than the second preset voltage threshold, and the second preset voltage threshold is less than the third preset voltage threshold; the charging power of the first charging circuit for charging the battery assembly is greater than the charging power of the second charging circuit for charging the battery assembly.

2. The charging module according to claim 1, characterized in that, When the charging port is detected to be transmitting an electrical signal and the current voltage of the battery assembly is less than the first preset voltage threshold, the second charging circuit is in the on state and the first charging circuit is in the off state. When the current voltage of the battery assembly reaches the third preset voltage threshold, both the first charging circuit and the second charging circuit are disconnected.

3. The charging module according to claim 2, characterized in that, The duration during which both the first charging circuit and the second charging circuit are in the disconnected state is a preset duration.

4. The charging module according to any one of claims 1 to 3, characterized in that, The charging module also includes: A boost module is disposed on the first charging circuit and connected between the charging port and the battery assembly, for boosting the input voltage of the charging port and then inputting it to the battery assembly; A power management chip is disposed on the second charging circuit and connected between the charging port and the battery assembly. It is used to monitor the voltage of the battery assembly and turn the second charging circuit on or off according to the voltage of the battery assembly.

5. The charging module according to claim 4, characterized in that, The charging module also includes: A level conversion module is disposed on the second charging circuit and connected between the power management chip and the battery assembly. It is used to convert the input voltage and input current of the charging port when the battery assembly is charging, and to convert the voltage and current of the battery assembly when the battery assembly is discharging.

6. The charging module according to claim 5, characterized in that, The level conversion module includes a first port and a second port; The first port is connected to the power management chip, and the second port is connected to the positive terminal of the battery assembly; the boost module is connected to the positive terminal of the battery assembly, and the negative terminal of the battery assembly is grounded.

7. The charging module according to claim 4, characterized in that, The charging module also includes: A protection module is disposed on the second charging circuit and connected between the charging port and the power management chip. It is used to disconnect the connection between the charging port and the power management chip when the input voltage of the charging port is greater than a fourth preset voltage threshold.

8. The charging module according to any one of claims 1 to 3, characterized in that, The battery assembly includes at least two battery cells connected in series or in parallel.

9. An electronic device, characterized in that, include: The charging module as described in any one of claims 1 to 8; A control module is connected to the first charging circuit and the second charging circuit of the charging module, and is used to control the on / off state of the first charging circuit and the second charging circuit.

10. The electronic device according to claim 9, characterized in that, The boost module of the charging module is disposed on the first charging circuit, and the power management chip of the charging module is disposed on the second charging circuit; The control module is electrically connected to the boost module and the power management chip, and is used to control the boost module to turn on or off the first charging circuit, and to control the power management chip to turn on or off the second charging circuit.

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