Charging and discharging control method and mobile energy storage equipment

Abstract

The invention relates to the technical field of mobile energy storage, in particular to a charging and discharging control method and mobile energy storage equipment. The mobile energy storage device comprises a wireless discharging port, a first type port and at least one second type port, wherein the second type port is a wired charging and discharging port; the first type port is used for being connected with target energy storage equipment; the method comprises the following steps: when the first type of port is connected with the target energy storage equipment, forbidding the second type of port and enabling the wireless discharge port, so that the mobile energy storage equipment serves as a wireless discharge module of the target energy storage equipment. Through the method, the wireless charging function can be expanded for the target energy storage equipment, so that the method can adapt to more diversified use scenes to meet the charging requirements of users.

Description

Technical Field

[0001] This application relates to the technical field of mobile energy storage, and particularly to a charge-discharge control method and a mobile energy storage device. Background Art

[0002] With the development of technology, various portable energy storage devices have gradually entered people's work and life. Such portable energy storage devices usually have a large capacity and can meet the charging needs of many electronic devices. However, most of the current portable energy storage devices are not equipped with a wireless charging module and cannot provide electrical energy for electronic devices with wireless charging functions, resulting in limited application scenarios of the portable energy storage devices and inability to maximize the utilization of the energy of the portable energy storage devices.

[0003] Correspondingly, many current mobile energy storage devices (such as power banks) are equipped with a wireless charging module, and users can use such mobile energy storage devices to provide electrical energy for electronic devices with wireless charging functions. However, in order to be lightweight, such mobile energy storage devices often have a small capacity and cannot provide electrical energy for too many electronic devices. After the power of the mobile energy storage device is exhausted, even if the mains power or a portable energy storage device is used to replenish the power of the mobile energy storage device, it still takes a long time to wait, and the user experience is not good. Summary of the Invention

[0004] In view of this, the embodiments of this application provide a charge-discharge control method and a mobile energy storage device, which can expand the application scenarios of portable energy storage devices and solve the problems of limited application scenarios of portable energy storage devices and poor user experience, etc.

[0005] In a first aspect, the embodiments of this application provide a charge-discharge control method, which is applied to a mobile energy storage device. The mobile energy storage device includes a wireless discharge port, a first type of port, and at least one second type of port. The second type of port is a wired charge-discharge port; the first type of port is used to connect to a target energy storage device; the method includes:

[0006] When the first type of port is connected to the target energy storage device, disable the second type of port and enable the wireless discharge port, so that the mobile energy storage device serves as a wireless discharge module of the target energy storage device.

[0007] In some embodiments, the mobile energy storage device further includes a battery pack; the method further includes:

[0008] Obtain a first input power of the first type of port and a first required power of the wireless discharge port;

[0009] Supply power to the wireless discharge port according to the first required power of the wireless discharge port; and / or,

[0010] Charge the battery pack according to the difference power between the first input power and the first required power.

[0011] In some embodiments, the method further includes:

[0012] When a release instruction is received, release the disabled state of the second type of port;

[0013] And / or, when the first type of port is not connected to the target energy storage device and the second type of port is disabled, release the disabled state of the second type of port.

[0014] In some embodiments, the method further includes:

[0015] When any one of the second type of ports is in a charging state, prohibit other second type of ports from entering the charging state.

[0016] In some embodiments, the method further includes:

[0017] Obtain the actual input power of the second type of port of the mobile energy storage device;

[0018] Obtain the load priority and load demand power of each load port of the mobile energy storage device; the load port is a port to which a load is connected;

[0019] Allocate the actual input power according to the load priority and the load demand power to supply power to the corresponding load port.

[0020] In some embodiments, the method further includes:

[0021] When the actual input power is greater than the sum of the load demand powers, charge the battery pack of the mobile energy storage device with the remaining input power; the remaining input power is the difference between the actual input power and the sum.

[0022] In some embodiments, the method further includes:

[0023] Configure the load priority of each port; wherein, when the wireless discharge port and the second type of port are connected to the battery pack in the mobile energy storage device through the same charge and discharge path, configure the load priority of the second type of port to be higher than that of the wireless discharge port;

[0024] The allocating the actual input power according to the load priority and the load demand power to supply power to the corresponding load port includes: when the actual input power is less than the sum of the load demand powers, disable the wireless discharge port.

[0025] In some embodiments, the load priorities of each port are configured; wherein, when the wireless discharge port and the second type port are connected to the battery pack in the mobile energy storage device through different charge and discharge paths, the same load priority as that of the wireless discharge port is configured for the second type port;

[0026] The allocating the actual input power according to the load priority and the load demand power to supply power to the corresponding load port includes: when the actual input power is less than the sum of the load demand powers, controlling the battery pack of the mobile energy storage device to discharge.

[0027] In some embodiments, the mobile energy storage device includes more than two of the second type ports; the method further includes:

[0028] If at least two of the second type ports are connected to loads, controlling the second type ports to discharge at a target voltage; and / or if the output current of the mobile energy storage device is less than a preset current threshold and lasts for a set duration, turning off the mobile energy storage device or disabling the second type ports.

[0029] In a second aspect, an embodiment of the present application provides a mobile energy storage device, which includes a battery pack, a wireless discharge port, a first type port, and at least one second type port. The first type port is used to connect to a target energy storage device; the battery pack is used to supply power to the wireless discharge port and the second type port, or receive power from the first type port and the second type port;

[0030] The mobile energy storage device includes a processor and a memory. The memory stores a computer program, and the processor is used to execute the computer program to implement a charge and discharge control method provided in the first aspect of the present application.

[0031] The embodiments of the present application have the following beneficial effects:

[0032] The present application provides a first type interface on the mobile energy storage device. When the mobile energy storage device is connected to the target energy storage device through the first type interface, the target energy storage device can charge the mobile energy storage device through the first type interface, and the mobile energy storage device can enable the wireless discharge port so that the mobile energy storage device serves as a wireless discharge module of the target energy storage device. Through the above method, the wireless charging function can be extended to the target energy storage device, so as to adapt to more diverse usage scenarios to meet the charging needs of users. Moreover, users do not need to wait for the charging process of the mobile energy storage device, which can improve the user experience. Description of the Drawings

[0033] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 Shows the first structural block diagram of the mobile energy storage device according to the embodiment of the present application;

[0035] Figure 2 Shows the second structural block diagram of the mobile energy storage device according to the embodiment of the present application;

[0036] Figure 3 Shows the third structural block diagram of the mobile energy storage device according to the embodiment of the present application;

[0037] Figure 4 Shows a flowchart of the charge and discharge control method according to the embodiment of the present application;

[0038] Figure 5 Shows a flowchart of a power distribution method in the charge and discharge control method according to the embodiment of the present application.

[0039] Main element symbol description:

[0040] 100 - Mobile energy storage device; 110 - First type port; 120 - Second type port; 130 - Wireless discharge port; 140 - Main circuit; 200 - Target energy storage device. Detailed implementation manners

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments.

[0042] The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.

[0043] As used hereinafter, the terms "comprising", "having" and their cognates that may be used in various embodiments of the present application are only intended to denote specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be construed as precluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or as precluding the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0044] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present application belong. The terms (such as those defined in a general-use dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present application.

[0045] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0046] In order to solve the problem that the applicable scenarios of mobile energy storage devices and large-scale energy storage devices are limited, and the problem that portable small-capacity energy storage devices such as power banks have low charging power and slow charging speed, accordingly, the present application provides a charge-discharge control method and a mobile energy storage device.

[0047] The present application provides a mobile energy storage device 100. Exemplarily, as Figure 1 shown, the mobile energy storage device 100 includes a main circuit 140, a wireless discharge port 130, a first type port 110, and at least one second type port 120. The first type port 110 is used to connect to a target energy storage device 200. Among them, the second type port 120 is a wired charge-discharge port. The main circuit 140 may include a boost circuit, a BMS (Battery Management System) circuit, an MCU (Microcontroller Unit), etc. The MCU is used to control the BMS circuit and the boost circuit. The wireless discharge port 130, the first type port 110, and at least one second type port 120 are all connected to the boost circuit.

[0048] Exemplarily, the mobile energy storage device 100 can be a power bank. The first type of port 110 can be a magnetic interface, such as a Pogopin interface, or it can also be other types of interfaces, such as a spring-loaded contact interface, a pin interface, etc. The second type of port 120 is a wired charging and discharging interface, which can be a USB interface, such as a Type-C interface.

[0049] The mobile energy storage device 100 can include a processor (such as the above-mentioned MCU) and a memory. The memory stores a computer program, and the processor is used to execute the computer program to implement the charging and discharging control method provided by the embodiments of the present application.

[0050] In some embodiments, the mobile energy storage device 100 can include two circuit topologies.

[0051] In the mobile energy storage device 100 with the first circuit topology, the wireless discharge port 130 and the second type of port 120 are connected to the battery pack in the mobile energy storage device 100 through the same charge and discharge path.

[0052] In the mobile energy storage device 100 with the second circuit topology, the wireless discharge port 130 and the second type of port 120 are respectively connected to the battery pack in the mobile energy storage device 100 through different charge and discharge paths.

[0053] Exemplarily, as Figure 2 shown, the mobile energy storage device 100 with the second circuit topology can include an MCU, a Low Dropout Regulator (LDO), a BMS circuit, a battery cell (battery pack), a first boost circuit, a second boost circuit, and a protocol chip. The output end of the second boost circuit can be connected to the Pogopin interface and two Type-C interfaces. The first boost circuit is connected to the wireless discharge port 130. The MCU is used to control the working states of the Pogopin interface, the two Type-C interfaces, and the wireless discharge port 130. Among them, the working states can include a disabled state, an idle state, a discharge state, and a charging state. The first boost circuit can be selected according to actual needs. For example, it can be a 20W Boost circuit, a bidirectional Buck-Boost circuit, or other types of circuits. The second boost circuit can be selected according to actual needs. For example, it can be a Boost circuit, a bidirectional Buck-Boost circuit, or other types of circuits.

[0054] Exemplarily, as Figure 3As shown, the mobile energy storage device 100 of the first circuit topology may include an MCU, a low dropout linear regulator (LDO), a BMS circuit, a battery cell (battery pack), a third boost circuit, and a protocol chip. The output end of the third boost circuit may be connected to a Pogopin interface, two Type-C interfaces, and a 15W wireless charging port 130. The third boost circuit can be selected according to actual needs. For example, it can be a circuit such as a Boost circuit or a bidirectional Buck-Boost circuit. Figure 2 and Figure 3 It is only a schematic illustration of a specific embodiment and does not limit the circuits applicable to the methods in this application.

[0055] The following will illustrate the charge and discharge control method in combination with some specific embodiments.

[0056] Figure 4 A flowchart of the charge and discharge control method according to an embodiment of the present application is shown. Exemplarily, it is applied to the mobile energy storage device 100, and the mobile energy storage device 100 may adopt the circuit architecture in any of the foregoing embodiments. The charge and discharge control method includes the following steps:

[0057] S100, when the first type of port 110 is connected to the target energy storage device 200, disable the second type of port 120 and enable the wireless charging port 130, so that the mobile energy storage device 100 serves as a wireless charging module of the target energy storage device 200.

[0058] For example, the mobile energy storage device 100 may be a power bank, the target energy storage device 200 may be an outdoor power supply, the first type of port 110 may be a Pogopin interface, the second type of port 120 may be a Type-C interface, the target energy storage device 200 charges the power bank through the Pogopin interface of the power bank, and the power bank discharges externally through the wireless charging port 130, thereby realizing the mobile energy storage device 100 serving as a wireless charging module of the target energy storage device 200.

[0059] That is, the mobile energy storage device is connected to the target energy storage device through the first type of interface, and the target energy storage device replenishes power for the mobile energy storage device. During this period, the mobile energy storage device enables the wireless charging port so that the mobile energy storage device serves as a wireless charging module of the target energy storage device.

[0060] A battery pack is provided on the mobile energy storage device 100, and the method of the embodiment of the present application further includes:

[0061] S200, obtain the first input power of the first type of port 110 and the first required power of the wireless charging port 130; supply power to the wireless charging port 130 according to the first required power of the wireless charging port 130, and / or charge the battery pack according to the difference power between the first input power and the first required power.

[0062] In some embodiments, after obtaining the first input power and the first required power, if the first input power is less than or equal to the first required power, supply power to the wireless charging port 130 according to the first required power of the wireless charging port 130 and do not charge the battery pack.

[0063] In other embodiments, if the first input power is greater than the first required power, supply power to the wireless charging port 130 according to the first required power of the wireless charging port 130, and charge the battery pack according to the difference power between the first input power and the first required power.

[0064] Among them, if the first required power is 0, that is, there is no load that needs wireless charging, then all the first input power is used to charge the battery pack. The magnitude of the first required power is determined according to the wireless load for wireless charging and the charging protocol supported by the mobile energy storage device 100. For example, if both the wireless load and the mobile energy storage device 100 support the Qi 2.0 protocol, the first required power can reach 15W; if the wireless load or the mobile energy storage device 100 does not support the Qi 2.0 protocol and does not support other private protocols, and the wireless load or the mobile energy storage device 100 can only use the Qi 1.x protocol, the first required power may only be 5W, 10W, etc.

[0065] For example, as Figure 2 shown in the mobile energy storage device 100 with the second circuit topology, when the target energy storage device 200 charges the mobile energy storage device 100 through the Pogopin interface, the mobile energy storage device 100 disables the TypeC interface. Assume that the first input power input by the target energy storage device 200 through the Pogopin interface is P1, and the first required power of the wireless charging port 130 is P2, and P2 is less than P1. Then the first input power preferentially supplies power to the wireless charging port 130, and the remaining difference power (P1 - P2) is used to charge the battery pack.

[0066] Another example, as Figure 3In the mobile energy storage device 100 of the first circuit topology shown, when the target energy storage device 200 charges the mobile energy storage device 100 through the Pogopin interface, the mobile energy storage device 100 also disables the TypeC interface. Assuming that the first input power input by the target energy storage device 200 through the Pogopin interface is P3, and the first required power of the wireless discharge port 130 is P2, the first input power is preferentially used to power the wireless discharge port 130, and the remaining difference power (P3-P2) is used to charge the battery pack.

[0067] Furthermore, the method further comprises:

[0068] S300, when a release instruction is received, release the disabled state of the second type port 120; and / or when the first type port 110 is not connected to the target energy storage device 200 and the second type port 120 is disabled, release the disabled state of the second type port 120.

[0069] In some embodiments, when the second type port 120 is in a disabled state, if the mobile energy storage device receives a release instruction, the mobile energy storage device may release the disabled state of the second type port 120 .

[0070] The release instruction may be triggered by a user on the mobile energy storage device, or may be sent by the user to the mobile energy storage device through other devices, which is not limited in this application.

[0071] And / or, in other embodiments, in addition to receiving a release instruction, when the mobile energy storage device detects that the first type port 110 is not connected to the target energy storage device 200, it indicates that the mobile energy storage device and the target energy storage device have been disconnected. At this time, if the second type port 120 is still in a disabled state, the mobile energy storage device can automatically release the disabled state of the second type port 120.

[0072] In one embodiment, the method further comprises:

[0073] When any one of the second type ports 120 is in the charging state, other second type ports 120 are prohibited from entering the charging state.

[0074] by Figure 2 or Figure 3 Take the scenario shown as an example, assuming that two Type C ports share a boost circuit, when two external chargers are charging the power bank at the same time, the voltage output by the two chargers must be consistent, that is, it is necessary to ensure that both chargers support the same charging protocol and output the same voltage for charging. Therefore, it is possible that two chargers charge slower than one charger.

[0075] For example, assume that when a charger is charging, it supports a charging protocol of 22V / 3A. Then, this charger can output a charging power of 22 * 3 = 66W. When another charger is added, the only charging protocol supported by the two chargers together is the most basic 5V / 3A charging protocol, resulting in a total charging power output by the two chargers of only 2 * 5 * 3 = 30W, which is lower than the charging power when only one charger is charging.

[0076] Therefore, in the embodiments of the present application, only the charger with priority access is allowed to charge the power bank, and the charger connected later is prohibited from charging the power bank, thereby ensuring that a single charger can reach the maximum charging power and guaranteeing the charging speed of the mobile energy storage device.

[0077] In one implementation, as Figure 5 shown, the above method further includes:

[0078] S410, obtaining the actual input power of the second type of port 120 of the mobile energy storage device 100.

[0079] S420, obtaining the load priority and load demand power of each load port of the mobile energy storage device 100. A load port is a port to which a load is connected.

[0080] Among them, the load priority can be determined according to the priority of the port where the load is located, or can be set according to the user's custom settings. For example, the user can customize the load priority on the application (APP) of their own terminal device, and then the terminal device sends it to the mobile energy storage device to synchronize the load priority data.

[0081] S430, allocating the actual input power according to the load priority and load demand power to supply power to the corresponding load port.

[0082] According to the load priority, the actual input power can be preferentially allocated to the load with a higher load priority to ensure that the load with a higher load priority can operate normally.

[0083] S440, when the actual input power is greater than the sum of the load demand powers, charging the battery pack of the mobile energy storage device 100 with the remaining input power; the remaining input power is the difference between the actual input power and the sum.

[0084] That is, when the actual input power is greater than the sum of the demand powers, the remaining input power can be used to charge the battery pack, improving the utilization rate of the actual input power.

[0085] In some implementations, if the actual input power is less than the sum of the demand powers, the battery pack is discharged to ensure that the demand power of each load is met.

[0086] In one embodiment, the load priorities of each port are configured; wherein, when the wireless discharge port 130 and the second type port 120 are connected to the battery pack in the mobile energy storage device 100 through different charge and discharge paths, the second type port 120 and the wireless discharge port 130 are configured with the same load priority;

[0087] In step S430, the actual input power is distributed according to the load priority and the load demand power to supply power to the corresponding load port, including: when the actual input power is less than the sum of the load demand powers, controlling the battery pack of the mobile energy storage device 100 to discharge.

[0088] Exemplarily, it is assumed that at least one second type port 120 may include a first Type-C interface and a second Type-C interface. Also, it is assumed that the wireless discharge port 130 and the second type port 120 are connected to the battery pack in the mobile energy storage device 100 through different charge and discharge paths.

[0089] Scenario 1: If the first Type-C interface is in the charging state and the second Type-C interface is in the discharging state, then control the actual input power obtained by the first Type-C interface to supply power to the second Type-C interface. If the actual input power is less than the load demand power of the second Type-C interface, then according to the difference power between the actual input power and the load demand power, control the battery pack in the mobile energy storage device 100 to supply power to the second Type-C interface. After the load connected to the second Type-C interface is disconnected, charge the battery pack according to the actual input power obtained by the first Type-C interface.

[0090] It can be understood that if the output current of the mobile energy storage device 100 is less than the preset current threshold and lasts for the set duration, then disable the discharging states of the second type port 120 and the wireless discharge port 130. For example, it is assumed that the preset current threshold is I3 and the set duration is T1. After the mobile energy storage device 100 detects that the output current is less than I3 and lasts for T1, it turns off the output power, switches to self-charging, and charges the battery pack with the obtained actual input power. Wherein, I3 > 0, T1 > 0. For example, I3 = 100 mA, T1 = 30 minutes. The specific values of I3 and T1 are set according to the actual application scenario, and the embodiments of the present application do not limit this.

[0091] The specific power distribution is shown in Table 1.

[0092] Table 1 Different charge and discharge paths - Scenario 1

[0093]

[0094] Scenario 2: If the first Type-C interface is in the charging state, and the second Type-C interface and the wireless charging and discharging circuit are both in the discharging state, obtain the load demand power of the second Type-C interface; if the actual input power received by the first Type-C interface is greater than the load demand power of the second Type-C interface, the first Type-C interface supplies power to the second Type-C interface according to the load demand power of the second Type-C interface; and control the charging of the battery pack with the difference power between the second input power and the actual demand power.

[0095] When the second Type-C interface stops outputting power externally (i.e., the external load charging is completed), charge the battery pack with the actual input power obtained by the first Type-C interface.

[0096] During this process, the battery pack supplies power to the wireless discharging circuit.

[0097] Summarize the above content into specific power distribution as shown in Table 2.

[0098] Table 2 Different charging and discharging paths - Scenario 2

[0099]

[0100]

[0101] Scenario 3: If one of the Type-C interfaces in at least one second type of port 120 is in the charging state, and the wireless discharging port 130 is in the discharging and using state, disable other Type-C interfaces from entering the charging state; obtain the load demand power of the wireless discharging port 130.

[0102] Supply power to the wireless discharging port 130 with the actual input power of the Type-C interface that is currently in the charging enabled state according to the load demand power of the wireless discharging port 130.

[0103] If the actual input power of the Type-C interface that is currently in the charging state is greater than the load demand power of the wireless discharging port 130, charge the battery pack with the difference power between the actual input power of the Type-C interface and the load demand power.

[0104] If the actual input power of the Type-C interface that is currently in the charging state is less than the load demand power of the wireless discharging port 130, the difference power between the actual input power and the load demand power is provided by the battery pack.

[0105] The specific power distribution is shown in Table 3.

[0106] Table 3 Different charging and discharging paths - Scenario 3

[0107]

[0108]

[0109] For example, if the load demand power of the wireless discharge port 130 is 15 W and the actual input power of the Type-C is 10 W, the battery pack provides a difference power of 15 - 10 = 5 W for the wireless discharge port 130.

[0110] Scenario 4: If there are two Type-C interfaces for charging and the wireless discharge port 130 is discharging, the specific power distribution is shown in Table 4.

[0111] Table 4 Different charge and discharge paths - Scenario 4

[0112]

[0113] In one implementation, the above method further includes:

[0114] Configuring the load priorities of each port; wherein, when the wireless discharge port 130 and the second type port 120 are connected to the battery pack in the mobile energy storage device 100 through the same charge and discharge path, the load priority of the second type port 120 is configured to be higher than that of the wireless discharge port 130.

[0115] In step S430, allocating the actual input power according to the load priority and the load demand power to supply power to the corresponding load port includes: disabling the wireless discharge port 130 when the actual input power is less than the sum of the load demand powers.

[0116] Exemplarily, assume that at least one of the above second type ports 120 includes a first Type-C interface and a second Type-C interface. Also, assume that the wireless discharge port 130 and the second type port 120 are connected to the battery pack in the mobile energy storage device 100 through the same charge and discharge path.

[0117] Scenario 5: If the first Type-C interface is in the charging state and the second Type-C interface is in the discharging state, the power distribution is the same as the scheme shown in Table 1 and will not be elaborated here.

[0118] Scenario 6: If the first Type-C interface is in a charging state, and the second Type-C interface and the wireless charging port 130 are both in a discharging state, then the wireless charging port 130 is prohibited from entering the discharging state, and the load demand power of the second Type-C interface is obtained; if the actual input power of the first Type-C interface is greater than the load demand power of the second Type-C interface, the first Type-C interface supplies power to the second Type-C interface according to the load demand power of the second Type-C interface; and the difference power between the actual input power and the actual demand power is used to charge the battery pack. When the second Type-C interface stops outputting power externally (i.e., the external load charging is completed), the actual input power of the first Type-C interface is used to charge the battery pack and supply power to the wireless charging port 130. The specific power distribution is shown in Table 5.

[0119] Table 5 The same charge and discharge path - Scenario 6

[0120]

[0121] Scenario 7: If one of the Type-C interfaces in at least one second type of port 120 is in a charging state, and the wireless charging port 130 is in a discharging state, other Type-C interfaces are prohibited from entering the charging state; the actual input power of the Type-C interface is obtained, and the wireless charging port 130 is supplied with power according to the actual input power of the currently charging Type-C interface and the load demand power of the wireless charging port 130.

[0122] Among them, if the actual input power of the Type-C interface is greater than the load demand power of the wireless charging port 130, the load demand power is provided for the wireless charging port 130, and, according to the difference power between the actual input power of the Type-C interface and the load demand power of the wireless charging port 130, the battery pack is charged.

[0123] If the actual input power of the Type-C interface is less than the load demand power of the wireless charging port 130, the actual input power of the Type-C interface is provided for the wireless charging port 130.

[0124] For example, assume that the actual input power of the Type-C interface is 25W and the load demand power of the wireless charging port 130 is 15W. Then the actual output power of the wireless charging port 130 is 15W, and the battery pack is charged with the difference power of 10W between 25W and 15W.

[0125] Assume that the actual input power of the Type-C interface is 5W and the load demand power of the wireless charging port 130 is 15W. Then the actual output power of the wireless charging port 130 is 5W, and the battery pack neither charges nor discharges.

[0126] The specific power distribution is shown in Table 6.

[0127] Table 6 Identical charge and discharge path - Scenario Seven

[0128]

[0129] Scenario Eight: If one Type-C interface is for charging, one Type-C interface is for charging, and the wireless discharge port 130 is discharging, the specific power distribution is shown in Table 7.

[0130] Table 7 Identical charge and discharge path - Scenario Eight

[0131]

[0132] In one embodiment, the mobile energy storage device 100 includes two or more second-type ports 120; the above method further includes:

[0133] When at least two second-type ports 120 are both connected to loads, control the second-type ports 120 to discharge at a target voltage. It can be understood that whether the wireless discharge port 130 and the second-type ports 120 are connected to the battery pack in the mobile energy storage device 100 through different charge and discharge paths or the same charge and discharge paths, when at least two second-type ports 120 are simultaneously connected to loads, the discharge voltages of the second-type ports 120 are the same, where the discharge voltage is determined according to the discharge voltage supported by the second-type ports 120.

[0134] In one embodiment, if the output current of the mobile energy storage device 100 is less than a preset current threshold and lasts for a set duration, turn off the mobile energy storage device 100 or disable the second-type ports 120.

[0135] In one embodiment, the wireless discharge port 130 and the second-type ports 120 are connected to the battery pack in the mobile energy storage device 100 through different charge and discharge paths. When the mobile energy storage device 100 is in a discharge-only mode, the method further includes:

[0136] When one second-type port 120 is in a discharge state and the wireless discharge port 130 is in a discharge state, supply power to the wireless discharge port 130 according to the difference power between the rated maximum discharge power of the mobile energy storage device 100 and the load demand power of the current second-type port 120 in the discharge state.

[0137] Scenario 9: As shown in Table 8, in the discharge mode of the TypeC1 / TypeC2 + wireless discharge port combination, if the actual output power of TypeC1 / TypeC2 (representing one of TypeC1 and TypeC2) is the maximum discharge power W1 of the mobile energy storage device 100 with the second circuit topology, the wireless discharge port 130 is disabled; if the output power of TypeC1 / TypeC2 is greater than the set power W2, the output power of the wireless discharge port 130 is less than the maximum discharge power W3 of the wireless discharge port 130, and W1 - W2 > W3.

[0138] When the two second-type ports 120 are in the discharge state and the wireless discharge port 130 is in the discharge state, the second-type ports 120 in the discharge state are powered according to the output voltage and output current jointly supported by each second-type port 120, and the wireless discharge port 130 is powered according to the above-mentioned jointly supported output voltage. As shown in Table 8, in the discharge mode of the TypeC1 + TypeC2 + wireless discharge port combination, TypeC1 and TypeC2 output according to the jointly supported output voltage (U1), for example, output at 5V, then the output voltage of the wireless discharge port 130 is also U1. When the mobile energy storage device is placed on the target energy storage device 200 for charging, if two TypeC ports and wireless charging are allowed to discharge simultaneously, the two TypeC ports must output the same voltage. At this time, only U1 / I1 output power supply can meet the daily charging requirements, and the output voltage of the wireless discharge port is the same as the voltage U1 output by the two TypeC ports.

[0139] Table 8 Different charge and discharge paths - Scenario 9

[0140]

[0141]

[0142] In one implementation, when the wireless discharge port 130 and the second-type port 120 are connected to the battery pack in the mobile energy storage device 100 through the same charge and discharge path, in the case of the mobile energy storage device 100 only in the discharge mode, the method further includes:

[0143] When one second-type port 120 is in the discharge state and the wireless discharge port 130 is in the discharge state, the power supply for the currently discharging second-type port 120 and the wireless discharge port 130 is determined according to the actual output voltage magnitude of the currently discharging second-type port 120.

[0144] Scenario Ten: As shown in Table 9, in the combined discharge mode of TypeC1 / TypeC2 + wireless discharge port, if the output power of TypeC1 / TypeC2 is the rated maximum discharge power of the mobile energy storage device 100, for example, 30W, and the output voltage of TypeC1 / TypeC2 > U1, the wireless discharge port 130 is disabled; if the output of TypeC1 / TypeC2 is U1 / I1 and the output voltage of TypeC1 / TypeC2 is U1, the output power of the wireless discharge port 130 is the slow charge power W4. For example, U1 = 5V, I1 = 3A, and the slow charge power W4 is 5W.

[0145] When the two second-type ports 120 are in the discharge state, the wireless discharge port 130 is disabled; the two second-type ports 120 are powered according to the discharge voltage U1 supported by both of them, and the total power is less than or equal to the rated maximum discharge power of the mobile energy storage device 100. In the combined discharge mode of TypeC1 + TypeC2 + wireless discharge port in Table 9, the output voltage of the wireless discharge port 130 is the discharge voltage supported by both TypeC ports.

[0146] When charging the mobile energy storage device on the target energy storage device 200, if simultaneous discharge of the TypeC port and the wireless discharge port 130 is allowed, the output voltages of the TypeC port and the wireless charging circuit should be kept consistent. At this time, the TypeC port can only supply power according to U1 / I1, and the wireless discharge port 130 outputs according to the slow charge power W4; if simultaneous discharge of the two TypeC ports and wireless charging is prohibited, when a single TypeC port discharges and it is a fast charge, the wireless charging is disabled at this time to ensure the maximum and highest-efficiency wired charge power.

[0147] Table 9 The same charge and discharge path - Scenario Ten

[0148]

[0149] Scenario Eleven, for the mobile energy storage device 100 in the first circuit topology in the charging-only mode, the power distribution method is shown in Table 10.

[0150] Table 10 The same charge and discharge path - Scenario Eleven

[0151]

[0152] Scenario Twelve, for the mobile energy storage device 100 in the charging-only mode under the same charge and discharge path, the power distribution method is shown in Table 11.

[0153] Table 11 Different charge and discharge paths - Scenario Twelve

[0154]

[0155] This application expands the wireless charging function for the target energy storage device, enabling it to adapt to more diverse usage scenarios to meet the charging needs of users. Moreover, users do not need to wait for the charging process of the mobile energy storage device, which can improve the user experience.

[0156] An embodiment of this application also provides a charge and discharge control device. Exemplarily, the charge and discharge control device includes:

[0157] A control module, which is used to disable the second type of port 120 and enable the wireless discharge port 130 when the first type of port 110 is connected to the target energy storage device 200, so that the mobile energy storage device 100 serves as the wireless discharge module of the target energy storage device 200.

[0158] It can be understood that the device in this embodiment corresponds to the charge and discharge control method in the above embodiment, and the optional items in the above embodiment also apply to this embodiment, so they will not be repeated here.

[0159] A mobile energy storage device 100 of this application. Exemplarily, the mobile energy storage device 100 includes a battery pack, a wireless discharge port 130, a first type of port 110, and at least one second type of port 120. The first type of port 110 is used to connect to the target energy storage device 200; the battery pack is used to supply power to the wireless discharge port 130 and the second type of port 120, or receive power from the first type of port 110 and the second type of port 120.

[0160] The mobile energy storage device 100 includes a processor and a memory. Among them, the memory stores a computer program, and the processor runs the computer program to enable the mobile energy storage device 100 to execute the above charge and discharge control method or the functions of each module in the above charge and discharge control device.

[0161] Among them, the processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including a central processing unit (CPU), a graphics processing unit (GPU), a network processor (NP), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc., which can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0162] The memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electric Erasable Programmable Read-Only Memory (EEPROM), etc. Among them, the memory is used to store computer programs, and after receiving the execution instruction, the processor can execute the computer program accordingly.

[0163] This application also provides a computer-readable storage medium for storing the computer program used in the above-mentioned mobile energy storage device 100. For example, the computer-readable storage medium can include, but is not limited to: various media such as USB flash drives, external hard drives, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disks, or optical discs that can store program codes.

[0164] In several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architectures, functions, and operations of the devices, methods, and computer program products according to multiple embodiments of this application. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of the code. A module, a program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in the alternative implementation, the functions marked in the blocks can occur in a different order from that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the structure diagram and / or flowchart, as well as the combination of blocks in the structure diagram and / or flowchart, can be implemented by a dedicated hardware-based system that executes the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0165] In addition, in each embodiment of this application, the various functional modules or units can be integrated together to form an independent part, or each module can exist separately, or two or more modules can be integrated to form an independent part.

[0166] When the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in various embodiments of this application.

[0167] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application.

Claims

1. A charging and discharging control method, applied to a mobile energy storage device, characterized in that: The mobile energy storage device includes a wireless discharge port, a first type port and at least one second type port, wherein the second type port is a wired charging and discharging port; The first type port is used to connect to a target energy storage device; the method comprises: When the first type port is connected to the target energy storage device, the second type port is disabled and the wireless discharge port is enabled, so that the mobile energy storage device serves as a wireless discharge module of the target energy storage device.

2. The charge and discharge control method according to claim 1, characterized in that: The mobile energy storage device also includes a battery pack; the method also includes: Acquire a first input power of the first type port and a first required power of the wireless discharging port; supplying power to the wireless discharging port according to the first required power of the wireless discharging port; and / or, The battery pack is charged according to a difference power between the first input power and the first required power.

3. The charge and discharge control method according to claim 1, characterized in that: The method further comprises: When receiving a release instruction, releasing the disabled state of the second type port; And / or, when the first type port is not connected to the target energy storage device and the second type port is disabled, releasing the disabled state of the second type port.

4. The charge and discharge control method according to claim 1, characterized in that: The method further comprises: When any one of the second type ports is in the charging state, other second type ports are prohibited from entering the charging state.

5. The charge and discharge control method according to claim 1, characterized in that: The method further comprises: Acquire the actual input power of the second type port of the mobile energy storage device; Obtaining the load priority and load demand power of each load port of the mobile energy storage device; the load port is a port connected to a load; The actual input power is distributed according to the load priority and the load required power to supply power to the corresponding load port.

6. The charge and discharge control method according to claim 5, characterized in that: The method further comprises: When the actual input power is greater than the sum of the power requirements of each load, the remaining input power is used to charge the battery pack of the mobile energy storage device; the remaining input power is the difference between the actual input power and the sum.

7. The charge and discharge control method according to claim 5, characterized in that: The method further comprises: Configuring the load priority of each port; wherein, when the wireless discharge port and the second type port are connected to the battery pack in the mobile energy storage device through the same charging and discharging path, configuring the load priority of the second type port to be higher than the load priority of the wireless discharge port; The allocating the actual input power according to the load priority and the load required power to supply power to the corresponding load port includes: disabling the wireless discharge port when the actual input power is less than the sum of the load required power.

8. The charge and discharge control method according to claim 5, characterized in that: Configure the load priority of each port; wherein, when the wireless discharge port and the second type port are connected to the battery pack in the mobile energy storage device through different charging and discharging paths, configure the second type port to have the same load priority as the wireless discharge port; The distributing the actual input power according to the load priority and the load demand power to supply power to the corresponding load port includes: when the actual input power is less than the sum of the load demand power, controlling the battery pack of the mobile energy storage device to discharge.

9. The charge and discharge control method according to claim 1, characterized in that: The mobile energy storage device comprises more than two ports of the second type; and the method further comprises: If at least two of the second type ports are connected to a load, the second type ports are controlled to discharge at a target voltage; and / or if the output current of the mobile energy storage device is less than a preset current threshold and lasts for a set time, the mobile energy storage device is turned off or the second type port is disabled.

10. A mobile energy storage device, characterized in that: The mobile energy storage device includes a battery pack, a wireless discharge port, a first type port and at least one second type port, wherein the first type port is used to connect to a target energy storage device; the battery pack is used to supply power to the wireless discharge port and the second type port, or receive power from the first type port and the second type port; The mobile energy storage device further includes a processor and a memory, wherein the memory stores a computer program, and the processor is used to execute the computer program to implement the charge and discharge control method according to any one of claims 1 to 9.

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