Nonvolatile storage system, charging management method and capacity expansion type protective shell

Abstract

The invention discloses a nonvolatile storage system, a charging management method and a capacity expansion type protective shell, and relates to the technical field of memorizers, and the method specifically comprises the steps that a control unit determines whether the electric quantity of a mobile phone end battery is lower than a first electric quantity threshold value, and when the electric quantity of the mobile phone end battery is lower than the first electric quantity threshold value, a first power distribution strategy is operated; the battery of the mobile phone terminal can be quickly charged; when the electric quantity of the mobile phone end battery is charged to be not lower than a second electric quantity threshold value, a second power distribution strategy is operated, and the mobile phone end battery and an additional battery of the nonvolatile storage system are charged at the same time; according to the actual electric quantity of the mobile phone end battery, different power distribution strategies are selected to reasonably distribute the charging power of the charger, so that the mobile phone end battery is switched to the advanced charging of the additional battery by utilizing the redundant power of the mobile phone end battery at low charging power such as trickle charging, and the charging efficiency is improved. Therefore, the dead time of the mobile phone end battery at low charging power such as trickle charging is reduced, and the overall charging time is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the field of memory technology, and in particular to a non-volatile storage system with power storage function, a charging management method and an expandable protective shell. Background Art

[0002] Thanks to the continuous development of OTG functions, expandable mobile storage, as a storage that can expand the memory of mobile devices such as mobile phones and tablet computers, has gradually been widely used. In particular, when using a mobile phone for a large number of video or photography, transferring picture files or video files to an expandable mobile storage that is plugged into the data charging port of the mobile phone can better avoid the problem of insufficient mobile phone memory. In order to improve the convenience of use and functionality of the expandable mobile storage, some manufacturers will design the shell of the expandable mobile storage into a mobile phone case corresponding to the mobile phone, which can be used on the mobile phone, and add a storage function to the expandable mobile storage to improve the battery life of the mobile phone. For example, the Chinese invention "A mobile phone protective case with storage expansion and backup battery" with announcement number CN204741478U.

[0003] However, the current expandable mobile storage device with power storage function and capable of being mounted on a mobile phone, after the expandable mobile storage device is plugged into the mobile phone, when the expandable mobile storage device and the mobile phone are charged by an external power supply, the charging process is set to charge the mobile phone first, and then charge the battery of the expandable mobile storage device after the mobile phone is fully charged.

[0004] As some mobile phones have a battery charging optimization function, when charging is close to full charge, a charging strategy that is more beneficial to the battery life will be implemented. During this period, the charging power is usually relatively small and the charging time is usually relatively long. If you wait until the mobile phone is fully charged before charging the battery of the expandable mobile storage, the entire charging time will be relatively long. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above object, the present invention provides the following technical solution: a charging management method, the method comprising the following steps: Step S1, plugging the plug connector into the interface of an external mobile phone, and plugging the plug connector into the connector of an external power charger for input charging; Step S2, the control unit determines whether the power level of the battery on the mobile phone is lower than a first power level threshold, and executes step S3 when the power level of the battery on the mobile phone is lower than the first power level threshold; Step S3, when the power level of the battery on the mobile phone is lower than the first power threshold, executing the first power allocation strategy to quickly charge the battery on the mobile phone; Step S4, when the power level of the mobile phone battery is not less than the second power level threshold, execute the second power allocation strategy to charge the mobile phone battery and the additional battery at the same time.

[0007] As a further solution of the present invention: the first power allocation strategy is to charge the mobile phone battery with a charging power within a first range close to the maximum charging power of the charger.

[0008] As a further solution of the present invention: the second power allocation strategy is to charge the mobile phone battery with a charging power within a second range lower than the charging power within the first range, and to charge the additional battery with a charging power within a third range close to the maximum charging power of the charger.

[0009] As a further solution of the present invention: the second power allocation strategy is to charge the mobile phone battery by trickle charging with a charging power within a second range.

[0010] As a further solution of the present invention: during the trickle charging process, when it is determined that the power of the additional battery is lower than the third power threshold: when the charging power of the mobile phone battery is gradually reduced, the charging power of the additional battery is gradually increased.

[0011] As a further solution of the present invention: in step S2, when the battery power of the mobile phone is not lower than the first battery power threshold, execute the following steps: step S5, when the battery power of the mobile phone is not lower than the first battery power threshold, execute the third power allocation strategy.

[0012] As a further solution of the present invention: in step S5, when the power level of the battery on the mobile phone is not lower than the first power threshold, it is also used to determine whether the power level of the battery on the mobile phone is lower than the fourth power threshold; when it is determined that the power level of the battery on the mobile phone is also lower than the fourth power threshold, the third power allocation strategy is to charge the battery on the mobile phone with a charging power within a fourth range close to the maximum charging power of the charger; when the power level of the battery on the mobile phone is higher than the fifth power threshold, the fourth power allocation strategy is run to charge the battery on the mobile phone and the additional battery at the same time.

[0013] As a further solution of the present invention: the fourth power allocation strategy is to charge the mobile phone battery in a trickle charging manner with a charging power within a fifth range that is lower than the charging power within the fourth range, and to charge the additional battery with a charging power within a sixth range that is close to the maximum charging power of the charger.

[0014] The present invention also provides the following technical solution: a non-volatile storage system with a power storage function, comprising a control unit, and a storage module, a battery module, a plug connector and a plug interface electrically connected to the control unit, the battery module including an additional battery; wherein, when the control unit is plugged in and connected to an external mobile phone via the plug connector, the control unit at least obtains the power information of the mobile phone; when charging, the above-mentioned charging management method is run.

[0015] The present invention provides the following technical solutions: an expandable protective shell, comprising a protective shell body, a mounting slot for installing an external mobile device is provided on the protective shell body, and the above-mentioned non-volatile storage system with power storage function is provided on the protective shell body; wherein, the plug connector of the non-volatile storage system is configured so that when the external mobile device is installed on the mounting slot, the plug connector can be plugged into the interface corresponding to the mobile device; the plug interface of the non-volatile storage system is an exposed plug-in setting.

[0016] Compared with the prior art, the beneficial effects of the present technical solution are as follows: different power allocation strategies are selected according to the actual power level of the mobile phone battery to reasonably allocate the charging power of the charger, so as to utilize the redundant power of the mobile phone battery at low charging power such as trickle charging, and switch to advance charging of the additional battery to reduce the stagnation time of the mobile phone battery at low charging power such as trickle charging, thereby greatly speeding up the overall charging time.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the structure of the expandable protective shell in the present invention; Figure 2 It is a structural schematic diagram of the non-volatile storage system in the present invention; Figure 3 It is a control flow chart of the charging management method in the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-3 In this embodiment, an expandable protective shell includes a protective shell 1, on which a mounting slot 2 for mounting an external mobile device is provided, and on which a non-volatile storage system with a power storage function is provided.

[0022] The plug connector 3 of the non-volatile storage system is configured so that when the external mobile device is installed on the installation slot 2, the plug connector 3 can be plugged into the corresponding interface of the mobile device; the plug interface 4 of the non-volatile storage system is an exposed plug-in setting.

[0023] The external mobile device is, for example, a mobile phone or a tablet.

[0024] like Figure 1 As shown, the mounting slot 2 can be a mobile phone mounting slot, and the plug connector 3 of the non-volatile storage system is arranged on the protective housing 1 and inserted into the mounting slot from one side of the mobile phone mounting slot. When the external mobile phone is mounted on the mounting slot, the interface of the mobile phone can be made to correspond to the plug connector 3, and when the mobile phone is installed in the mounting slot, the plug connector 3 is inserted into the corresponding interface to electrically connect with the mobile phone. The plug connector can be a Type-C plug connector, a Lightning plug connector, a Mini USB plug connector, etc.

[0025] The plug interface 4 of the non-volatile storage system with power storage function is arranged in the internal installation cavity of the protective shell 1, and one side of the protective shell 1 has an exposed window corresponding to the plug interface 4. The plug interface 4 can be plugged into the connector of the external device or the connector of the external power supply to achieve electrical connection. The plug interface 4 is a plug interface of the type such as a Type-C plug interface, a Lightning plug interface, a Mini USB plug interface, etc.

[0026] See also Figure 1-3 In this embodiment, the non-volatile storage system with power storage function includes a control unit 5, and a storage module 6, a battery module 7, a plug connector 3 and a plug interface 4 electrically connected to the control unit 5, and the battery module 7 includes an additional battery that can store power.

[0027] When the control unit 5 is plugged and connected with the external mobile device through the plug connector 3, the control unit 5 at least obtains the power information of the mobile device. For example, when the control unit 5 is plugged and connected with the external mobile phone, the control unit 5 at least obtains the power information of the mobile phone.

[0028] When the mobile device is connected to an interface of an external mobile device through the plug connector 3 and when the charger of an external power source is connected to an input for charging through the plug connector 4, the control unit 5 runs a predetermined charging management method to help optimize and reduce the overall charging time for charging the battery of the mobile device and the charging of the additional battery.

[0029] In some embodiments, the plug connector 3 is a plug connector with an OTG function.

[0030] See also Figure 1-3 In this embodiment, the charging management method includes the following steps: Step S1, plugging the plug connector into the interface of an external mobile phone, and plugging the plug connector into the connector of an external power charger for input charging; Step S2, the control unit determines whether the power level of the battery on the mobile phone is lower than a first power level threshold, and executes step S3 when the power level of the battery on the mobile phone is lower than the first power level threshold; Step S3, when the power level of the battery on the mobile phone is lower than the first power threshold, executing the first power allocation strategy to quickly charge the battery on the mobile phone; Step S4, when the power level of the mobile phone battery is not less than the second power level threshold, execute the second power allocation strategy to charge the mobile phone battery and the additional battery at the same time.

[0031] The first power threshold is, for example, 80% power value of the battery on the mobile phone side. When it is determined that the power of the battery on the mobile phone side is lower than 80% power value, the control unit correspondingly runs the first power allocation strategy; the second power threshold can be set to 80% power value which is the same as the first power threshold, or set to 85% power value, 90% power value, etc. which are greater than the first power threshold. The second power threshold is set so that there is a power difference between the power value corresponding to the second power threshold and the full charge 100% power value, for example, the second power threshold is 80% power value which has a power difference of 20% with the full charge 100% power value, or the second power threshold is set to 85% power value which has a power difference of 15% with the full charge 100% power value.

[0032] In this embodiment, the first power allocation strategy is to charge the mobile phone battery with a charging power within a first range close to the maximum charging power of the charger, so as to quickly charge the mobile phone battery, which can also be called fast charging of the mobile phone.

[0033] Taking the maximum charging power of the charger as 40W as an example, the charging power within the first range can be more than 70% of the maximum charging power, that is, the charging power within the first range is more than 28W, such as 30w, 32w, 35w and other power values; the charging power within the first range can be more than 80% of the maximum charging power, that is, the charging power within the first range is more than 32w, such as 34w, 36w, 38w and other power values.

[0034] The charging power in the first range can be selected to be within 35% of the maximum charging power of the charger. For example, the minimum possible value of the charging power in the first range is 26W, which is 35% different from the maximum charging power of 40W. This can better ensure that the charging power in the first range is always maintained at a higher value relative to the maximum charging power of the charger, that is, the mobile phone battery can be quickly charged with a higher charging power, so that the power of the mobile phone battery can rise to the target power value more quickly. The target power value is, for example, the power value corresponding to the first power threshold.

[0035] In this embodiment, the second power allocation strategy is to charge the mobile phone battery with a charging power within a second range lower than the charging power within the first range, and to charge the additional battery with a charging power within a third range close to the maximum charging power of the charger.

[0036] After the battery on the mobile phone is quickly charged from a level lower than a first power threshold to a level closer to a second power threshold that is fully charged, the charging power of the battery on the mobile phone will be reduced to avoid battery damage caused by continued high-power charging. At the same time, the redundant power or most of the redundant power will be used to quickly charge the additional battery.

[0037] Taking the maximum charging power of the charger as 40W as an example, the charging power within the second range can be less than 25% of the maximum charging power, that is, when the power of the mobile phone battery is not less than the second power threshold, the mobile phone battery is charged with a power of less than 10W.

[0038] The charging power in the third range can be selected to be within 35% of the maximum charging power of the charger. That is, when the charging power of the mobile phone battery is 8W, the charging power in the third range can be 28W, 30W, etc.

[0039] Due to losses in other components and circuits, the sum of the charging power for the mobile phone battery and the charging power for the additional battery is usually slightly less than the maximum charging power of the charger.

[0040] In this embodiment, the second power allocation strategy is to charge the mobile phone battery by trickle charging with a charging power within a second range.

[0041] Preferably, during the trickle charging process, when it is determined that the power level of the additional battery is lower than a third power level threshold, the charging power of the additional battery is gradually increased while the charging power of the mobile phone battery is gradually decreased.

[0042] During this charging stage, the mobile phone battery is charged by trickle charging, which can optimize its charging loss and effectively reduce the charging damage to the mobile phone battery. In this process, the charging power of trickle charging is continuously reduced, and redundant power is continuously released to increase the charging power of the additional battery, so that the charging time of the additional battery can be better accelerated, thereby effectively reducing the overall charging time.

[0043] In some embodiments, when the trickle charging method is used to gradually reduce the charging power of the mobile phone battery, the charging power of the additional battery can be gradually increased in stages, such as each increase in steps of 1W, that is, when the charging power of the mobile phone battery is reduced to more than 1W, the charging power of the additional battery is increased by 1W.

[0044] In this embodiment, in step S2, when the power level of the battery on the mobile phone is not less than the first power level threshold, the following steps are executed: Step S5: When the power level of the battery on the mobile phone is not lower than the first power level threshold, execute the third power allocation strategy.

[0045] In some embodiments, the third power allocation strategy is to charge the mobile phone battery with a charging power within a seventh range that is lower than the charging power within the first range, and to charge the additional battery with a charging power within an eighth range that is close to the maximum charging power of the charger.

[0046] When the first power threshold is the same as the second power threshold, that is, when the power value corresponding to the first power threshold is 80% and the power value corresponding to the second power threshold is 80%, the seventh range is the same as the second range, and the eighth range is the same as the third range.

[0047] In this embodiment, in step S5, when the power level of the battery on the mobile phone is not lower than the first power level threshold, it is also used to determine whether the power level of the battery on the mobile phone is lower than the fourth power level threshold; When it is determined that the power level of the battery on the mobile phone is lower than the fourth power level threshold, the third power allocation strategy to be executed is to charge the battery on the mobile phone with a charging power within a fourth range close to the maximum charging power of the charger; When the power level of the mobile phone battery is higher than the fifth power level threshold, the fourth power allocation strategy is executed to charge the mobile phone battery and the additional battery at the same time.

[0048] Preferably, the fourth power allocation strategy is to charge the mobile phone battery by trickle charging at a charging power within a fifth range that is lower than the charging power within the fourth range, and to charge the additional battery with a charging power within a sixth range that is close to the maximum charging power of the charger.

[0049] The set value of the fourth power threshold is greater than the set value of the first power threshold. For example, when the power value corresponding to the first power threshold is 80% power value, the power value corresponding to the fourth power threshold can be set to 90% power value, 95% power value, etc., wherein there is another power difference between the fourth power threshold and the fully charged 100% power value, such as the fourth power threshold is a 95% power value with a 5% power difference from the fully charged 100% power value.

[0050] The fifth power threshold is, for example, 95%. The charging power within the fourth range is, for example, 70% or more, 85% or more of the maximum charging power, etc. The charging power within the fifth range is, for example, 8% or less of the maximum charging power.

[0051] The charging needs of users are determined more accurately by power level classification. For example, when charging starts in a low power state below a first power threshold, and when charging starts in a medium or high power state that is not lower than the first power threshold but lower than a fourth power threshold, different power allocation strategies are used for charging accordingly, so as to effectively reduce charging damage to the mobile phone battery while improving the charging time.

[0052] In this embodiment, in step S1 or step S2, when it is confirmed that the storage module is in use, in addition to using the power input by the charger to provide the control unit with operating current, the power input by the charger also provides the storage module with operating current.

[0053] If the actual storage module is powered by an additional battery or a mobile phone battery before charging, then the power supply from the mobile phone or the additional battery is switched to the charger.

[0054] In some embodiments, when the storage module remains in use and the charger is unplugged, the power supply from the charger is switched to the power supply from the mobile phone or the additional battery.

[0055] In some embodiments, the storage module includes a buffer chip, a control chip, a flash memory chip and a power-off protection capacitor. When the power is off, the power-off protection capacitor allows the power supply mode to transition more smoothly or the cached data to be better protected, without causing data loss.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A charging management method, characterized in that: The method comprises the following steps Step S1, plugging the plug connector into the interface of an external mobile phone, and plugging the plug connector into the connector of an external power charger for input charging; Step S2, the control unit determines whether the power level of the battery on the mobile phone is lower than a first power level threshold, and executes step S3 when the power level of the battery on the mobile phone is lower than the first power level threshold; Step S3, when the power level of the battery on the mobile phone is lower than the first power level threshold, executing the first power allocation strategy to quickly charge the battery on the mobile phone; Step S4, when the power level of the mobile phone battery is not less than the second power level threshold, execute the second power allocation strategy to charge the mobile phone battery and the additional battery at the same time.

2. The charging management method according to claim 1, characterized in that: The first power allocation strategy is to charge the mobile phone battery with a charging power within a first range close to the maximum charging power of the charger.

3. The charging management method according to claim 2, characterized in that: The second power allocation strategy is to charge the mobile phone battery with a charging power within a second range lower than the charging power within the first range, and to charge the additional battery with a charging power within a third range close to the maximum charging power of the charger.

4. The charging management method according to claim 3, characterized in that: The second power allocation strategy is to charge the mobile phone battery by trickle charging with a charging power within a second range.

5. The charging management method according to claim 4, characterized in that: During the trickle charging process, when it is determined that the charge level of the additional battery is lower than the third charge level threshold: When the charging power of the mobile phone battery is gradually reduced, the charging power of the additional battery is gradually increased.

6. The charging management method according to any one of claims 2 to 5, characterized in that: In step S2, when the battery level of the mobile phone is not lower than the first battery level threshold, the following steps are performed: Step S5: When the power level of the battery on the mobile phone is not lower than the first power level threshold, execute the third power allocation strategy.

7. The charging management method according to claim 6, characterized in that: In step S5, when the battery power of the mobile phone terminal is not less than the first battery power threshold, it is also used to determine whether the battery power of the mobile phone terminal is less than a fourth battery power threshold; When it is determined that the power level of the battery on the mobile phone is lower than the fourth power level threshold, the third power allocation strategy to be executed is to charge the battery on the mobile phone with a charging power within a fourth range close to the maximum charging power of the charger; When the power level of the mobile phone battery is higher than the fifth power level threshold, the fourth power allocation strategy is executed to charge the mobile phone battery and the additional battery at the same time.

8. The charging management method according to claim 7, characterized in that: The fourth power allocation strategy is to charge the mobile phone battery in a trickle charging manner with a charging power within a fifth range that is lower than the charging power within the fourth range, and to charge the additional battery with a charging power within a sixth range that is close to the maximum charging power of the charger.

9. A non-volatile storage system, characterized in that: It includes a control unit, and a storage module, a battery module, a plug connector and a plug interface electrically connected to the control unit, and the battery module includes an additional battery; When the control unit is plugged into the external mobile phone through the plug connector, the control unit at least obtains the power information of the mobile phone; During charging, the charging management method described in any one of claims 1 to 8 is executed.

10. An expandable protective shell, characterized in that: A protective housing is provided with a mounting slot for mounting an external mobile device, and the protective housing is provided with the non-volatile storage system according to claim 9; Among them, the plug connector of the non-volatile storage system is configured so that when the external mobile device is installed on the installation slot, the plug connector can be plugged into the interface corresponding to the mobile device; the plug interface of the non-volatile storage system is an exposed plug-in setting.

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