Interface switching control circuit, interface switching method and mobile charging equipment

Abstract

The invention discloses an interface switching control circuit, an interface switching method and mobile charging equipment. The interface switching control circuit comprises a base and at least one mobile power supply, the base comprises a physical switch, an inversion module and a first control module, the mobile power supply comprises a battery pack, a power supply management module, a second control module and a switch module, when the physical switch is switched on, the first control module is used for controlling the second control module to generate a first control signal, and the switch module is used for switching on the battery pack according to the first control signal; a power management module of the mobile power supply is conducted and connected with an inversion module of the base, and a battery pack of the mobile power supply supplies power to the first load through the base; when the physical switch is switched off, the first control module is used for controlling the second control module to generate a second control signal, the switch module is switched off according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module. The power supply safety of the mobile power supply is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to an interface switching control circuit, an interface switching method and a mobile charging device. Background Art

[0002] A mobile power bank is a portable device that stores a large amount of electrical energy and can quickly charge various instruments and devices. It is widely used in electronic products such as smartphones, tablets, and laptops.

[0003] In the prior art, the port of a mobile power bank is usually in a normally open state, and the load can be directly connected to the port of the mobile power bank to obtain power. However, this power supply method has the risk of leakage, resulting in low safety. With the advancement of technology, a power supply method in which a mobile power bank is connected to the load through a base has gradually emerged. This connection method is intended to improve the stability and safety of power supply, but it is still immature in current usage scenarios and faces many challenges.

[0004] For example, when a mobile power bank is powered by a base, if the load connected to the base is removed, a high voltage may still remain in the base. This not only increases the risk of electric shock to personnel, but may also cause damage to the mobile power bank itself. The residual high voltage may cause damage to components in the circuit and reduce the reliability of the system. Summary of the invention

[0005] The invention provides an interface switching control circuit, an interface switching method and a mobile charging device, so as to improve the safety when a mobile power supply supplies power to a base.

[0006] According to one aspect of the present invention, there is provided an interface switching control circuit, comprising: a base and at least one mobile power source, the mobile power source being connected to the base;

[0007] The base includes a physical switch, an inverter module and a first control module, the first control module is connected between the physical switch and the inverter module, and the first load is connected to the base through the inverter module; the mobile power supply includes a battery pack, a power management module, a second control module and a switch module, the power management module is connected to the battery pack, the switch module and the second control module, and the second load is connected to the mobile power supply through the power management module; the first control module is connected to the second control module, and the switch module is connected to the inverter module;

[0008] When the physical switch is turned on, the first control module is used to control the second control module to generate a first control signal, and the switch module is used to connect the power management module of the mobile power supply to the inverter module of the base according to the first control signal, so that the battery pack of the mobile power supply supplies power to the first load through the base;

[0009] When the physical switch is turned off, the first control module is used to control the second control module to generate a second control signal, the switch module is used to disconnect according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module.

[0010] According to another aspect of the present invention, an interface switching method is provided, the interface switching method is executed by an interface switching control circuit, the interface switching control circuit includes a base and at least one mobile power supply, the mobile power supply is connected to the base; the base includes a physical switch, an inverter module and a first control module, the first control module is connected between the physical switch and the inverter module, and the first load is connected to the base through the inverter module; the mobile power supply includes a battery pack, a power management module, a second control module and a switch module, the power management module is connected to the battery pack, the switch module and the second control module, and the second load is connected to the mobile power supply through the power management module; the first control module is connected to the second control module, and the switch module is connected to the inverter module;

[0011] The interface switching method comprises:

[0012] Connect the mobile power supply to the base;

[0013] When the physical switch is controlled to be turned on, the first control module controls the second control module to generate a first control signal, and the switch module connects the power management module of the mobile power supply to the inverter module of the base according to the first control signal, so that the battery pack of the mobile power supply supplies power to the first load through the base;

[0014] When the physical switch is controlled to be turned off, the first control module controls the second control module to generate a second control signal, the switch module is disconnected according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module.

[0015] According to another aspect of the present invention, a mobile charging device is provided, wherein the mobile charging device comprises the interface switching control circuit described in any of the above embodiments.

[0016] The technical solution of the embodiment of the present invention controls whether the switch module is turned on by closing and conducting the physical switch, thereby realizing the state switching of the mobile power supply to supply power to the first load or to the second load through the base. When the physical switch is disconnected, the switch module is also disconnected, thereby quickly cutting off the power transmission between the mobile power supply and the base, thereby avoiding high voltage on the base, and effectively improving the power supply safety of the mobile power supply.

[0017] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

[0019] Figure 1 A schematic diagram of the structure of an interface switching control circuit provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of another interface switching control circuit provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a first display interface provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of a second display interface provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a third display interface provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the structure of another interface switching control circuit provided by an embodiment of the present invention;

[0025] Figure 7 The present invention provides a flowchart of an interface switching method. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] Figure 1 This is a schematic diagram of the structure of an interface switching control circuit provided by an embodiment of the present invention. This embodiment can be applied to switching the load of a mobile power supply. Figure 1As shown, the interface switching control circuit includes: a base 110 and at least one mobile power supply 120, the mobile power supply 120 is connected to the base 110; the base 110 includes a physical switch 111, an inverter module 117 and a first control module 112, the first control module 112 is connected between the physical switch 111 and the inverter module 117, and the first load 130 is connected to the base 110 through the inverter module 117; the mobile power supply 120 includes a battery pack 122, a power management module 124, a second control module 121 and a switch module 125, the power management module 124 is connected to the battery pack 122, the switch module 125 and the second control module 121, and the second load 140 is connected to the mobile power supply 120 through the power management module 124; the first control module 112 and The second control module 121 is connected, and the switch module 125 is connected to the inverter module 117; when the physical switch 111 is turned on, the first control module 112 is used to control the second control module 121 to generate a first control signal, and the switch module 125 is used to connect the power management module 124 of the mobile power supply 120 to the inverter module 117 of the base 110 according to the first control signal, and the battery pack 122 of the mobile power supply 120 supplies power to the first load 130 through the base 110; when the physical switch 111 is turned off, the first control module 112 is used to control the second control module 121 to generate a second control signal, and the switch module 125 is used to disconnect according to the second control signal, and the battery pack 122 of the mobile power supply 120 supplies power to the second load 140 through the power management module 124.

[0029] Specifically, the base 110 refers to an expansion device of the mobile power supply 120, which can connect the mobile power supply 120 to other electronic devices. The mobile power supply 120 refers to a portable battery device that is specifically used to provide power for various electronic devices. A lithium-ion battery is usually provided inside the mobile power supply 120 to store and release power. The battery pack 122 refers to a battery system that stores power in the mobile power supply 120. For example, the battery pack 122 may include a lithium battery. For example, the base 110 can invert the DC power output by the mobile power supply 120 into AC power, thereby charging the AC device.

[0030] The first load 130 refers to an AC load powered by the base 110. For example, the first load 130 may be a fan, an OLED screen, etc. The second load 140 refers to a DC load that can be directly powered by the mobile power supply 120. For example, the second load 140 may be a mobile phone, a tablet, or other portable electronic devices.

[0031] The physical switch 111 refers to a physical switch provided on the base 110 and responsible for controlling the on / off of the circuit. The physical switch 111 can determine whether the mobile power supply 120 supplies power to the base 110. Exemplarily, when the first load 130 is connected to the base 110 and the physical switch 111 is turned on, the mobile power supply 120 supplies power to the base 110; when the first load 130 is disconnected from the base 110, the physical switch 111 is turned off, and the mobile power supply 120 cannot supply power to the base 110. The switch module 125 refers to a virtual switch device used to control the on / off of the current in the power supply circuit of the mobile power base. The switch module 125 is used in conjunction with the physical switch 111. When the physical switch 111 is turned on, the switch module 125 is turned on under the action of the first control signal, and the mobile power supply 120 supplies power to the first load 130 through the base 110; when the physical switch 111 is turned off, the switch module 125 is turned off under the action of the second control signal, and the mobile power supply 120 cannot supply power to the first load 130 through the base 110.

[0032] The first control module 112 refers to a module in the base 110 that is responsible for receiving a signal from the physical switch 111 and controlling the working state of the mobile power supply 120. The second control module 121 refers to a module in the mobile power supply 120 that is responsible for receiving a control signal from the first control module 112 and generating a first control signal or a second control signal to control the power supply object of the mobile power supply 120.

[0033] The first control signal refers to a control signal generated by the second control module 121. The first control signal controls the conduction of the switch module 125 so that the mobile power supply 120 supplies power to the first load 130 connected to the base 110. The second control signal refers to another control signal generated by the second control module 121. The second control signal controls the disconnection of the switch module 125 so that the mobile power supply 120 cannot supply power to the first load 130 but can only supply power to the second load 140.

[0034] The power management module 124 refers to a module responsible for managing the power output of the mobile power supply 120. Under the control of the second control module 121, the power management module 124 can monitor the power of the mobile power supply 120 and control it to output power to the base 110 or the second load 140. The inverter module 117 refers to a module on the base 110 responsible for converting direct current into alternating current. Its main function is to receive direct current from the mobile power supply 120 through the first electrostatic protection module 113 and convert it into alternating current that can be used by the first load 130. In the embodiment of the present invention, the mobile power supply 120 can directly supply power to the second load 140, and can also supply power to the first load 130 through the base 110. The first control module 112 on the base 110 controls the second control module 121 to issue a first control signal or a second control signal by collecting the closing or conducting signal issued by the physical switch 111, and then controls the conduction or disconnection of the switch module 125, so as to realize that the mobile power supply 120 supplies power to the first load 130 or the second load 140 through the base 110.

[0035] The technical solution of the embodiment of the present invention controls whether the switch module is turned on by closing and conducting the physical switch, thereby realizing the state switching of the mobile power supply to supply power to the first load through the base or only to the second load. When the physical switch is disconnected, the switch module is also disconnected, thereby quickly cutting off the power transmission between the mobile power supply and the base, thereby avoiding high voltage on the base, and effectively improving the power supply safety of the mobile power supply.

[0036] Based on the above embodiments, Figure 1 Optionally, when the physical switch 111 is turned on, the mobile power supply 120 is used to stop supplying power to the second load 140 according to the first control signal and only supply power to the first load 130 .

[0037] In the embodiment of the present invention, the physical switch 111 is turned on, the first control module 112 can receive the signal that the physical switch 111 is turned on, and then send a control signal to the second control module 121 to control the second control module 121 to send a first control signal. The first control signal can control the switch module 125 to be turned on, and can control the power management module 124 to switch the conduction mode, so that the mobile power supply 120 stops supplying power to the second load 140 that is being supplied, and switches to supplying power only to the first load 130 connected to the base 110. Based on the above embodiments, continue to refer to Figure 1Optionally, when a fault occurs in the first load 130, the switch module 125 is used to control the power management module 124 to be disconnected, and the mobile power supply 120 stops supplying power to the first load 130 and the second load 140; after the fault is eliminated, the switch module 125 is used to control the power management module 124 to be turned on in a first manner, and the mobile power supply 120 supplies power to the first load 130 through the base 110; wherein the first manner is that the power management module 124 is turned on to the switch module 125 and is disconnected from the second load 140. After the first load 130 is removed, the switch module 125 is used to control the power management module 124 to be turned on in a second manner, and the mobile power supply 120 only supplies power to the second load 140; after the first load 130 is reconnected to the base 110, the switch module 125 controls the power management module 124 to switch to the first manner, and the mobile power supply 120 supplies power to the first load 130 through the base 110; wherein the second manner is that the power management module 124 is only turned on to the second load 140.

[0038] Specifically, the first mode and the second mode are two conduction modes of the power management module 124 . The power management module 124 can switch between the first mode and the second mode by switching the conduction mode of its internal switch.

[0039] In the embodiment of the present invention, if the first load 130 fails, such as a short circuit, the switch module 125 can monitor the abnormality of the first load 130, and then control the power management module 124 to disconnect, so that the mobile power supply 120 stops supplying power to the outside. After the fault is eliminated, the switch module 125 can monitor the signal of the normal operation of the first load 130, control the power management module 124 to conduct in the first manner, and only supply power to the first load 130.

[0040] If the first load 130 is removed, the switch module 125 can receive a signal indicating that the first load 130 is removed, and then control the conduction mode of the power management module 124 so that the mobile power supply 120 only supplies power to the second load 140 .

[0041] Among them, when the first load 130 is removed, if the mobile power supply 120 continues to transmit power to the base 110, other modules in the base 110, such as the inverter module 117, will continue to work, resulting in a waste of power. At this time, the mobile power supply 120 to the base 110 is stopped by the switch module 125, which can avoid unnecessary power output and save energy.

[0042] The technical solution provided by the embodiment of the present invention realizes the automatic switching of the power output object of the mobile power supply through the switch module, thereby improving the reliability and efficiency of the power supply of the mobile power supply. In addition, the present invention also avoids the waste of resources caused by other modules of the base continuing to work after the first load fails or is removed. That is, the present invention can effectively improve the flexibility of the mobile power supply, save energy, and improve the utilization rate of electric energy.

[0043] Figure 2 A schematic diagram of another interface switching control circuit provided by an embodiment of the present invention. Based on the above embodiments, optionally, Figure 2 As shown, the mobile power supply 120 also includes a display module 170, and the display module 170 is connected to the second control module 121; the display module 170 is used to display a first display interface when the mobile power supply 120 is used alone, or when the mobile power supply 120 is connected to the base 110 and the physical switch 111 is in an off state; when the mobile power supply 120 is connected to the base 110 and the physical switch 111 is switched from an off state to an on state, a second display interface is displayed; when the mobile power supply 120 is connected to the base 110 and the physical switch 111 is in an on state, after the second display interface continuously displays a first preset time period, a third display interface is displayed; wherein the first display interface, the second display interface and the third display interface are all different.

[0044] Specifically, the display module 170 refers to a display device for indicating the working state of the mobile power supply 120, and can display information such as data or images. For example, the display module 170 can be a liquid crystal display, a light-emitting diode display, or a touch screen. The first preset time period refers to the preset time for the second display interface to be displayed. For example, the first preset time period is 10 seconds.

[0045] The first display interface refers to a display interface of the display module 170, which can indicate that the mobile power supply 120 is currently being used alone, or that the mobile power supply 120 is connected to the base 110 but does not supply power to the base 110. The second display interface refers to another display interface of the display module 170, which can indicate that the mobile power supply 120 is connected to the base 110, and the physical switch 111 is switched from the disconnected state to the on state. The third display interface refers to another display interface of the display module 170, which can indicate that the mobile power supply 120 is connected to the base 110, and the physical switch 111 is in the on state.

[0046] Figure 3 A schematic diagram of a first display interface provided by an embodiment of the present invention. Figure 4 A schematic diagram of a second display interface provided by an embodiment of the present invention. Figure 5 A schematic diagram of a third display interface provided by an embodiment of the present invention. Figure 3As shown, when the display module 170 displays the first display interface, it can be seen that the time is 29:22, the power of the mobile power supply 120 is 87%, the input INPUT of the mobile power supply 120 is 0W, the output OUTPUT to the base 110 is 0W, the C interface voltage USB-C is 0V, and the temperature TEMP is 29°C. Figure 4 As shown, when the display module 170 displays the second display interface, it can be seen that the input INPUT of the mobile power supply 120 is 0W, the output OUTPUT to the base 110 is 9W, the USB-C interface voltage is 0V, and the temperature TEMP is 29°C. Figure 5 As shown, when the display module 170 displays the third display interface, it can be seen that the time is 27:55, the power of the mobile power supply 120 is 87%, the input INPUT of the mobile power supply 120 is 0W, the output OUTPUT to the base 110 is 8W, the C interface voltage USB-C is 0V, and the temperature TEMP is 29°C.

[0047] Figure 6 A schematic diagram of another interface switching control circuit provided by an embodiment of the present invention. Based on the above embodiments, optionally, Figure 6 As shown, the interface switching control circuit also includes: a first interface 150 and a second interface 160, the mobile power supply 120 and the base 110 are connected through the first interface 150 and the second interface 160; the first interface 150 is set on the mobile power supply 120, and the mobile power supply 120 receives and outputs electric energy through the first interface 150; the second interface 160 is set on the base 110, and the base 110 receives and outputs electric energy through the second interface 160.

[0048] Specifically, the first interface 150 refers to an electric energy connection point set on the mobile power supply 120, which is responsible for inputting and outputting electric energy with the base 110. In addition to outputting electric energy, the first interface 150 also supports a data transmission function, which facilitates communication and control between the base 110 and the mobile power supply 120. The second interface 160 is an electric energy connection point set on the base 110, which is responsible for inputting and outputting electric energy with the mobile power supply 120. In addition to outputting electric energy, the second interface 160 also supports a data transmission function, which facilitates communication and control between the base 110 and the mobile power supply 120. The setting of the first interface 150 and the second interface 160 enables flexible and efficient transmission and management of electric energy between the mobile power supply 120 and the base 110, thereby enhancing the functionality and adaptability of the entire system.

[0049] Based on the above embodiments, optionally, continue to refer to Figure 6When the first interface 150 includes a female head, the second interface 160 includes a male head; or, when the first interface 150 includes a male head, the second interface 160 includes a female head; the mobile power supply 120 is connected to the base 110 through the female head and the male head, and the mobile power supply 120 and the base 110 are used to exchange data and transmit power through the connected female head and the male head.

[0050] Specifically, the male connector refers to the part of the interface, usually the connector with protrusions or pins. The female connector refers to the other part of the interface, usually the connector with holes or slots. The male and female connectors match and can be physically connected and disconnected, thereby achieving the transmission of current and control signals. This design simplifies the connection process of the device and improves the convenience of use.

[0051] Based on the above embodiments, optionally, continue to refer to Figure 6 The base 110 also includes: a first electrostatic protection module 113, a power management module 114, an auxiliary power supply 115 and a unidirectional conduction module 116; the first electrostatic protection module 113 is connected to the second interface 160, and is used to suppress the electrostatic voltage input to the base 110; the power management module 114 is connected to the first electrostatic protection module 113, the auxiliary power supply 115 and the input end of the inverter module 117, and is used to distribute the electric energy of the base 110; the auxiliary power supply 115 is connected to the first control module 112, and is used to supply power to the first control module 112; the unidirectional conduction module 116 is connected between the first electrostatic protection module 113 and the first control module 112, and is used to limit the direction of current flow.

[0052] Specifically, the first electrostatic protection module 113 refers to a component in the base 110 for suppressing electrostatic voltage. The power management module 114 refers to a module responsible for the distribution and management of power in the base 110. The power management module 114 can intelligently distribute the power of the base 110 according to the load demand and power status to ensure the normal operation of each module. The auxiliary power supply 115 refers to an independent power supply module used to provide power to various functional modules in the base 110 including the first control module 112. The unidirectional conduction module 116 refers to a module composed of diodes, which can limit the direction of current flow to only from the first electrostatic protection module 113 to the first control module 112, thereby preventing current reverse flow. Among them, the unidirectional conduction module 116 can include multiple diode units, and each mobile power supply 120 corresponds to a diode unit.

[0053] In the embodiment of the present invention, the electric energy output by the mobile power supply 120 is transmitted to the base 110 through the first interface 150 and the second interface 160, wherein the first electrostatic protection module 113 in the base 110 can prevent the base 110 from being interfered by electrostatics. After the electric energy input to the base 110 passes through the first electrostatic protection module 113, a part of it flows into the first control module 112 through the unidirectional conduction module 116, which is used to power on the first control module 112. The first control module 112 generates an enable signal when it is powered on, so that the switch module 125 on the mobile power supply 120 conducts directional conduction to the base 110 to power the base 110. When the power module on the base 110 is turned on, the auxiliary power supply 115 outputs a second voltage, and the second voltage powers other internal functional modules in the base 110 including the first control module 112. Another part of the electric energy flows into the power management module 114, and then is inverted by the inverter module 117 to convert the direct current into alternating current to power the first load 130.

[0054] Based on the above embodiments, optionally, continue to refer to Figure 6 The mobile power supply 120 further includes: a second electrostatic protection module 123; the second electrostatic protection module 123 is connected to the second control module 121, the switch module 125 and the first interface 150, and is used to suppress electrostatic voltage.

[0055] Specifically, the second electrostatic protection module 123 refers to a module in the mobile power supply 120 for suppressing electrostatic voltage.

[0056] In the embodiment of the present invention, the battery pack 122 can output electric energy. Under the control of the second control module 121 , the power management module 124 can transmit the electric energy to the base 110 or the first load 130 via the second electrostatic protection module 123 .

[0057] According to the technical solution of the embodiment of the present invention, the mobile power supply transmits electric energy to the base through the first interface and the second interface, and the inverter module in the base can convert the direct current output by the mobile power supply into alternating current to meet the power supply demand of the first load; in addition, the mobile power supply can also directly supply power to the second load. That is, the mobile power supply can not only supply power to DC devices, but also support electronic devices that require alternating current. The present invention can improve the compatibility and functionality of the mobile power supply, and effectively expand the use scenarios of the mobile power supply.

[0058] Figure 7A flowchart of an interface switching method provided by an embodiment of the present invention. The interface switching method is executed by an interface switching control circuit, which includes a base and at least one mobile power supply, the mobile power supply is connected to the base; the base includes a physical switch, an inverter module and a first control module, the first control module is connected between the physical switch and the inverter module, and the first load is connected to the base through the inverter module; the mobile power supply includes a battery pack, a power management module, a second control module and a switch module, the power management module is connected to the battery pack, the switch module and the second control module, and the second load is connected to the mobile power supply through the power management module; the first control module is connected to the second control module, and the switch module is connected to the inverter module; Figure 7 As shown, the method includes:

[0059] S210, connect the mobile power supply to the base.

[0060] Specifically, connecting the mobile power supply to the base is a prerequisite for the interface switching control circuit to work. Only after the mobile power supply and the base are connected can information exchange and power transmission be performed.

[0061] S220, when the physical switch is controlled to be turned on, the first control module controls the second control module to generate a first control signal, and the switch module connects the power management module of the mobile power supply to the inverter module of the base according to the first control signal, and the battery pack of the mobile power supply supplies power to the first load through the base.

[0062] Specifically, the first control signal is used to notify the mobile power supply to start supplying power to the base, ensuring that the base can provide the required power for the connected first load. After receiving the first signal, the switch module in the mobile power supply is turned on, and the power management module and the inverter module of the mobile power supply are turned on. The battery pack in the mobile power supply can output power to the base, thereby supplying power to the first load, ensuring that the first load can obtain stable power support to meet its operation requirements.

[0063] S230: When the physical switch is controlled to be turned off, the first control module controls the second control module to generate a second control signal, the switch module is disconnected according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module.

[0064] Specifically, the second control signal instructs the mobile power supply to stop supplying power to the base and instead provide power to the second load. The switch module in the mobile power supply is disconnected after receiving the second control signal, and the battery pack in the mobile power supply supplies power to the second load through the power management module, ensuring that the second load can obtain stable power support.

[0065] The technical solution of the embodiment of the present invention controls whether the switch module is turned on by closing and conducting the physical switch, thereby realizing the state switching of the mobile power supply to supply power to the first load or only to the second load through the base. When the physical switch is disconnected, the switch module will also be disconnected, thereby quickly cutting off the power transmission between the mobile power supply and the base, thereby avoiding high voltage on the base, and effectively improving the power supply safety of the mobile power supply. On the basis of the above embodiments, the present invention also provides a mobile charging device, which includes the interface switching control circuit provided by any of the above embodiments, and has the corresponding functional modules and beneficial effects of the interface switching control circuit.

[0066] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0067] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An interface switching control circuit, characterized in that: include: A base and at least one mobile power source, wherein the mobile power source is connected to the base; The base includes a physical switch, an inverter module and a first control module, the first control module is connected between the physical switch and the inverter module, and the first load is connected to the base through the inverter module; the mobile power supply includes a battery pack, a power management module, a second control module and a switch module, the power management module is connected to the battery pack, the switch module and the second control module, and the second load is connected to the mobile power supply through the power management module; the first control module is connected to the second control module, and the switch module is connected to the inverter module; When the physical switch is turned on, the first control module is used to control the second control module to generate a first control signal, and the switch module is used to connect the power management module of the mobile power supply to the inverter module of the base according to the first control signal, so that the battery pack of the mobile power supply supplies power to the first load through the base; When the physical switch is turned off, the first control module is used to control the second control module to generate a second control signal, the switch module is used to disconnect according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module.

2. The interface switching control circuit according to claim 1, characterized in that: When the physical switch is turned on, the mobile power supply is used to stop supplying power to the second load according to the first control signal and only supply power to the first load.

3. The interface switching control circuit according to claim 1, characterized in that: When a fault occurs in the first load, the switch module is used to control the power management module to be disconnected, and the mobile power supply stops supplying power to the first load and the second load; after the fault is eliminated, the switch module is used to control the power management module to be turned on in a first manner, and the mobile power supply supplies power to the first load through the base; wherein the first manner is that the power management module is turned on to the switch module and is disconnected to the second load; After the first load is removed, the switch module is used to control the power management module to be turned on in the second mode, and the mobile power supply only supplies power to the second load; after the first load is reconnected to the base, the switch module controls the power management module to switch to the first mode, and the mobile power supply supplies power to the first load through the base; wherein, the second mode is that the power management module is turned on only to the second load.

4. The interface switching control circuit according to claim 1, characterized in that: The mobile power supply further includes a display module, and the display module is connected to the second control module; The display module is used to display a first display interface when the mobile power supply is used alone, or when the mobile power supply is connected to the base and the physical switch is in an off state; When the mobile power source is connected to the base and the physical switch is switched from an off state to an on state, a second display interface is displayed; When the mobile power source is connected to the base and the physical switch is in the on state, after the second display interface is continuously displayed for a first preset time period, a third display interface is displayed; Among them, the first display interface, the second display interface and the third display interface are all different.

5. The interface switching control circuit according to claim 1, characterized in that: The interface switching control circuit further includes: A first interface and a second interface, the mobile power supply and the base are connected via the first interface and the second interface; The first interface is provided on the mobile power source, and the mobile power source receives and outputs electric energy through the first interface; The second interface is arranged on the base, and the base receives and outputs electric energy through the second interface.

6. The interface switching control circuit according to claim 5, characterized in that: When the first interface includes a female connector, the second interface includes a male connector; or when the first interface includes a male connector, the second interface includes a female connector; The mobile power source is connected to the base via the female connector and the male connector, and the mobile power source and the base are used to perform data exchange and power transmission via the connected female connector and the male connector.

7. The interface switching control circuit according to claim 5, characterized in that: The base further includes: a first electrostatic protection module, a power management module, an auxiliary power supply and a unidirectional conduction module; The first electrostatic protection module is connected to the second interface and is used to suppress the electrostatic voltage input to the base; The power management module is connected to the first electrostatic protection module, the auxiliary power supply and the input end of the inverter module, and is used to distribute the electric energy of the base; The auxiliary power supply is connected to the first control module and is used to supply power to the first control module; The one-way conduction module is connected between the first electrostatic protection module and the first control module, and is used to limit the current flow direction.

8. The interface switching control circuit according to claim 5, characterized in that: The mobile power supply further includes: a second electrostatic protection module; The second electrostatic protection module is connected to the second control module, the switch module and the first interface, and is used to suppress electrostatic voltage.

9. An interface switching method, characterized in that: The interface switching method is executed by an interface switching control circuit, the interface switching control circuit includes a base and at least one mobile power supply, the mobile power supply is connected to the base; the base includes a physical switch, an inverter module and a first control module, the first control module is connected between the physical switch and the inverter module, and the first load is connected to the base through the inverter module; the mobile power supply includes a battery pack, a power management module, a second control module and a switch module, the power management module is connected to the battery pack, the switch module and the second control module, and the second load is connected to the mobile power supply through the power management module; The first control module is connected to the second control module, and the switch module is connected to the inverter module; The interface switching method comprises: Connect the mobile power supply to the base; When the physical switch is controlled to be turned on, the first control module controls the second control module to generate a first control signal, and the switch module connects the power management module of the mobile power supply to the inverter module of the base according to the first control signal, so that the battery pack of the mobile power supply supplies power to the first load through the base; When the physical switch is controlled to be turned off, the first control module controls the second control module to generate a second control signal, the switch module is disconnected according to the second control signal, and the battery pack of the mobile power supply supplies power to the second load through the power management module.

10. A mobile charging device, characterized in that: An interface switching control circuit comprising the interface switching control circuit according to any one of claims 1 to 8.

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