Shared charge pal leasing equipment

Abstract

The utility model provides shared charge pal leasing equipment, which comprises a power supply module, a charging bin module and a switch module, and is characterized in that the charging bin module comprises a plurality of charging bins, and each charging bin comprises a power transmission contact piece connected with a power supply positive electrode of an accessed charge pal; the switch module comprises reverse power supply circuits in one-to-one correspondence with the charging bins, and the reverse power supply circuits are connected between the power output end of the power module and the power transmission contact pieces of the corresponding charging bins. The reverse power supply circuit is used for conducting under the condition that the voltage of the power transmission contact piece of the corresponding charging bin is greater than the voltage of the power supply output end, so that the charge pal connected into the charging bin of which the voltage of the power transmission contact piece is greater than the voltage of the power supply output end supplies power to the shared charge pal leasing equipment; the reverse power supply circuit is further used for being disconnected under the condition that the voltage of the power transmission contact piece of the corresponding charging bin is smaller than or equal to the voltage of the power output end, so that the mains supply connected with the power input end of the power module supplies power to the shared charge pal leasing equipment.

Description

Technical Field

[0001] This disclosure relates to the field of electronic circuit technology, and more specifically, to a shared power bank rental device. Background Technology

[0002] In recent years, with the widespread adoption of smartphones and other mobile devices, shared power banks have experienced rapid growth in the market as a convenient mobile charging solution. Shared power banks are typically placed in charging cabinets, which users can rent by scanning a QR code and return after use. These cabinets are widely distributed in densely populated areas such as shopping malls, restaurants, hotels, and train stations, providing great convenience and meeting people's needs for charging their mobile devices anytime, anywhere.

[0003] During operation, server racks may experience power outages due to external power supply failures, grid fluctuations, and other factors. Once a server rack loses power, not only can shared power banks not be rented and returned normally, resulting in a poor user experience, but the control systems, communication modules, and other equipment inside the rack will also cease functioning, severely impacting the normal operation of the shared power bank service. Traditional server racks typically rely on continuous external mains power and lack effective backup power solutions, making them ill-equipped to handle sudden power outages. Utility Model Content

[0004] One object of this disclosure is to provide a shared power bank rental device.

[0005] According to a first aspect of the present disclosure, a shared power bank rental device is provided, including a power module, a charging compartment module, and a switch module. The charging compartment module includes multiple charging compartments, and each charging compartment includes a power supply contact for connecting to the positive power terminal of an accessed power bank.

[0006] The switching module includes a reverse power supply circuit corresponding to each charging compartment. The reverse power supply circuit is connected between the power output terminal of the power module and the power supply contact of the corresponding charging compartment.

[0007] The reverse power supply circuit is used to turn on when the voltage of the power supply contact of the corresponding charging compartment is greater than the voltage of the power output terminal, so that the power bank connected in the charging compartment with the voltage of the power supply contact greater than the voltage of the power output terminal supplies power to the shared power bank rental device; the reverse power supply circuit is also used to turn off when the voltage of the power supply contact of the corresponding charging compartment is less than or equal to the voltage of the power output terminal, so that the AC power connected to the power input terminal of the power module supplies power to the shared power bank rental device.

[0008] Optionally, the reverse power supply circuit includes a diode, the anode of which is connected to the power supply contact of the corresponding charging compartment, and the cathode of which is connected to the power output terminal.

[0009] Optionally, the reverse power supply circuit further includes a first resistor, which is connected in series with the diode between the power output terminal and the corresponding charging compartment's power supply contact.

[0010] Optionally, the reverse power supply circuit further includes a first transistor and a second transistor. The power module includes a first capacitor connected between the power output terminal and the ground terminal of the shared power bank rental device. The first transistor is connected in parallel with the first resistor. The second transistor is connected between the control terminal of the first transistor and the ground terminal. The control terminal of the second transistor is connected to the power output terminal.

[0011] Optionally, the reverse power supply circuit further includes a first voltage divider circuit and a second voltage divider circuit. The first voltage divider circuit is connected to the power output terminal at its first end, the ground terminal at its second end, and the control terminal of the second transistor at its third end. The second voltage divider circuit is connected to the power supply contact of the corresponding charging compartment at its first end, the second voltage divider circuit at its second end, and the control terminal of the first transistor at its third end.

[0012] Optionally, the shared power bank rental device further includes a control module, wherein the power pin of the control module is connected to the power output terminal;

[0013] The switch module also includes a switch corresponding to each charging compartment, and the switch and the corresponding reverse power supply circuit are connected in parallel between the power output terminal and the power supply contact of the corresponding charging compartment.

[0014] The control module is used to control the switching state of the switch so that the power module can charge the power bank in the charging compartment corresponding to the switched-on switch.

[0015] Optionally, the control module is configured to send a first control signal to at least one of the power banks connected to the shared power bank rental device when the mains power connected to the power module is interrupted. The first control signal is used to control the power bank to supply power to the shared power bank rental device in reverse.

[0016] Optionally, the shared power bank rental device further includes a comparator and a reference voltage output module. The reference voltage output module is used to output a reference voltage. The first input terminal of the comparator is connected to the power output terminal, the second input terminal of the comparator is connected to the output terminal of the reference voltage output module, and the output terminal of the comparator is connected to the control module.

[0017] Optionally, the control module is used to control all switches in the switching module to open when the output result of the comparator indicates that the voltage at the power output terminal is less than the reference voltage, so that the shared power bank rental device stops charging the connected power bank.

[0018] Optionally, the shared power bank rental device further includes a linear regulator, the input terminal of which is connected to the power output terminal, and the output terminal of which is connected to the power pin.

[0019] This embodiment enables shared power bank rental devices to continue providing users with power bank rental and return services even when the mains power is interrupted or the connection between the mains power and the power module is broken. It also enables the shared power bank rental devices to be used in scenarios without mains power. By inserting a power bank that is enabled to provide reverse power, the shared power bank rental devices can start up normally and continue to operate, thus increasing the usage scenarios of shared power bank rental devices.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a block diagram of a shared power bank rental device according to an embodiment of the present disclosure;

[0023] Figure 2 This is a block diagram of a shared power bank rental device according to another embodiment of the present disclosure;

[0024] Figure 3 This is a circuit diagram of a shared power bank rental device according to an embodiment of the present disclosure. Detailed Implementation

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and apparatus known to those skilled in the art in the relevant field may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

[0028] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0030] This disclosure provides a shared power bank rental device. For example... Figure 1 As shown, the shared power bank rental device 1000 may include a power module 1100, a charging compartment module 1200, and a switch module 1300. The charging compartment module 1200 includes multiple charging compartments 1210, and each charging compartment 1210 includes a power supply contact 1211 for connecting to the positive power terminal of the connected power bank.

[0031] The switch module 1300 includes a reverse power supply circuit 1320 corresponding to each charging compartment 1210. The reverse power supply circuit 1320 is connected between the power output terminal 1110 of the power module 1100 and the power supply contact 1211 of the corresponding charging compartment 1210.

[0032] The reverse power supply circuit 1320 is used to conduct when the voltage of the power supply contact 1211 of the corresponding charging compartment 1210 is greater than the voltage of the power output terminal 1110, so that the power bank connected in the charging compartment with the voltage of the power supply contact 1211 being greater than the voltage of the power output terminal 1110 supplies power to the shared power bank rental device 1000.

[0033] The reverse power supply circuit 1320 is also used to disconnect when the voltage of the power supply contact 1211 of the corresponding charging compartment 1210 is less than or equal to the voltage of the power output terminal 1110, so that the mains power connected to the power input terminal of the power module 1100 supplies power to the shared power bank rental device 1000.

[0034] The power input terminal of the power module 1100 can also be connected to the mains power. The power module 1100 is used to convert the AC power provided by the mains power into DC power that can power the control module 1400.

[0035] When the mains power is normally supplying power to the power module 1100, the voltage at the power output terminal 1110 will be greater than or equal to the voltage at the power supply contact 1211 of the charging compartment 1210. Then, the reverse power supply circuit 1320 will be disconnected, allowing the mains power to supply power to the shared power bank rental device 1000.

[0036] In the event of a power outage or a disconnection between the mains power and the power module 1100, if the power bank connected to the shared power bank rental device 1000 activates reverse power supply, the voltage of the power transmission contact 1211 of the charging compartment 1210 connected to the power bank will be greater than the voltage of the power output terminal 1110. The corresponding reverse power supply circuit 1320 will then be activated, allowing the power bank to supply power to the shared power bank rental device 1000.

[0037] This embodiment enables shared power bank rental devices to continue providing users with power bank rental and return services even when the mains power is interrupted or the connection between the mains power and the power module is broken. It also enables the shared power bank rental devices to be used in scenarios without mains power. By inserting a power bank that is enabled to provide reverse power, the shared power bank rental devices can start up normally and continue to operate, thus increasing the usage scenarios of shared power bank rental devices.

[0038] In some embodiments, such as Figure 2 As shown, the shared power bank rental device 1000 may also include a control module 1400.

[0039] The power output terminal 1110 of the power module 1100 is connected to the power pin of the control module 1400 so that the power module 1100 supplies power to the control module 1400.

[0040] In this embodiment, the control module 1400 is used to execute control logic related to the rental and return of the power bank.

[0041] like Figure 2 As shown, the switch module 1300 may also include a switch 1310 corresponding to each charging compartment 1210. The switch 1310 and the corresponding reverse power supply circuit 1320 are connected in parallel between the power output terminal 1110 and the power supply contact 1211 of the corresponding charging compartment 1210.

[0042] The control module 1400 is used to control the switching state of the switch 1310 so that the power module 1100 can charge the power bank in the charging compartment 1210 corresponding to the connected switch 1310.

[0043] In this embodiment, switch 1310 can be an electrically controlled switch such as a transistor or relay. Switch 1310 in switch module 1300 is disconnected when the shared power bank rental device is powered off.

[0044] Based on this, if the switch module 1300 does not include the reverse power supply circuit 1320, then when a power bank with reverse power supply enabled is subsequently inserted into the shared power bank rental device 1000, the control module 1400 is not powered and cannot control the switch 1310 to conduct. As a result, the power bank cannot provide reverse power to the shared power bank rental device 1000, and users cannot use the shared power bank rental device 1000 to rent and return power banks, affecting the user experience.

[0045] The reverse power supply circuit 1320 in this embodiment can be turned on when a power bank with reverse power supply enabled is plugged into a power-off shared power bank rental device. The power bank will supply power to the control module 1400, enabling the shared power bank rental device to restart after a power outage, thus providing users with power bank rental and return services.

[0046] In this embodiment, if the mains power supply to the shared power bank rental device stops and no power bank is inserted into the device, the device will be power-off and unable to operate. At this time, if a power bank with reverse charging enabled is inserted into the device, the voltage at the power supply contacts in the charging compartment will be greater than the voltage at the power output terminal, activating the reverse power supply circuit. The power bank will then supply power to the device, enabling it to start.

[0047] Furthermore, the power bank can be equipped with an on / off button, which the user can press to trigger the power bank to start reverse power supply.

[0048] This embodiment enables shared power bank rental devices to continue providing users with power bank rental and return services even when the mains power is interrupted or the connection between the mains power and the power module is broken. It also enables the shared power bank rental devices to be used in scenarios without mains power. By inserting a power bank that is enabled to provide reverse power, the shared power bank rental devices can start up normally and continue to operate, thus increasing the usage scenarios of shared power bank rental devices.

[0049] In this embodiment, the control module 1400 may obtain the remaining power of the power bank connected to the shared power bank rental device 1000, and when the remaining power of the connected power bank is less than or equal to a set power threshold, control the switch corresponding to the charging compartment connected to the power bank to be turned on, so that the power module 1100 charges the power bank.

[0050] Furthermore, the shared power bank rental device can charge up to two power banks simultaneously, meaning the control module 1400 can control the switches corresponding to up to N charging compartments to be turned on. Here, N is any positive integer. If, among the power banks connected to the shared power bank rental device, the number of power banks with remaining power less than or equal to a set power threshold is greater than N, the switch corresponding to the N charging compartments with the smallest serial numbers connected to the power banks with remaining power less than or equal to the set power threshold can be turned on to charge the power banks in these N charging compartments. Alternatively, the switch corresponding to the charging compartment with the N power banks with the smallest remaining power connected to the power banks with remaining power less than or equal to the set power threshold can be turned on to charge these N power banks.

[0051] In this embodiment, when the power bank is reverse-charging the shared power bank rental device, it is not necessary to occupy the number of switches that need to be turned on to charge the power bank, that is, it is not necessary to occupy the number of power banks that are charging at the same time.

[0052] In some embodiments, such as Figure 3 As shown, the reverse power supply circuit 1320 includes a diode D1. The anode of the diode D1 is connected to the power supply contact 1211 of the corresponding charging compartment 1210, and the cathode of the diode D1 is connected to the power output terminal 1110.

[0053] When the mains power supply is normally supplying power to the power module 1100, if the voltage at the power output terminal 1110 is greater than or equal to the voltage at the power supply contact 1211 of the charging compartment 1210, the diode D1 will be disconnected, meaning no current flows through the diode D1.

[0054] When the mains power is interrupted or the connection between the mains power and the power module is broken, the voltage of the power supply contact 1211 of the charging compartment 1210 of the power bank with reverse power supply function enabled will be greater than the voltage of the power output terminal 1110, and the diode D1 will be turned on, that is, current will flow through the diode D1.

[0055] This embodiment allows for normal charging of connected power banks even when the mains power is supplying power to the shared power bank rental device. It also enables the shared power bank rental device to continue providing power bank rental and return services to users even when the mains power is interrupted or the connection between the mains power and the power module is broken.

[0056] In some embodiments, such as Figure 3 As shown, the reverse power supply circuit 1320 includes a first resistor R1, which is connected in series with a diode D1 between the power output terminal 1110 and the power supply contact 1211 of the corresponding charging compartment 1210.

[0057] In this embodiment, the magnitude of the reverse power supply current can be controlled by setting the resistance value of the first resistor R1.

[0058] Furthermore, the first resistor R1 can be connected between the cathode of diode D1 and the power output terminal 1110.

[0059] In some embodiments, such as Figure 3 As shown, the reverse power supply circuit 1320 may further include a first transistor Q1 and a second transistor Q2. The power module 1100 includes a first capacitor C1, which is connected between the power output terminal 1110 and the ground terminal GND of the shared power bank rental device 1000. The first transistor Q1 is connected in parallel with the first resistor R1. The second transistor Q2 is connected between the control terminal of the first transistor Q1 and the ground terminal GND. The control terminal of the second transistor Q2 is connected to the power output terminal 1110.

[0060] In one example, the first transistor Q1 and the second transistor Q2 can be any type of transistor such as a MOSFET, a bipolar transistor, or an IGBT.

[0061] For example, such as Figure 3 As shown, the first transistor Q1 can be a PMOS transistor, and the second transistor Q2 can be an NPN transistor. Specifically, the source of the PMOS transistor can be connected to the cathode of diode D1, the drain of the PMOS transistor can be connected to the power output terminal 1110, the gate of the PMOS transistor can be connected to the collector of the NPN transistor, the emitter of the NPN transistor can be connected to ground GND, and the base of the NPN transistor can be connected to the power output terminal 1110.

[0062] In this embodiment, when the voltage of the power supply contact 1211 of the charging compartment 1210 is greater than the voltage of the power output terminal 1110, the power bank connected to the charging compartment 1210 first charges the first capacitor C1 through diode D1 and first resistor R1. The voltage of the power output terminal 1110 increases, causing the second transistor Q2 to conduct. The voltage of the control terminal of the first transistor Q1 decreases, causing the first transistor Q1 to conduct. This causes the reverse power supply circuit 1320 to conduct, and the connected power bank provides reverse power to the shared power bank rental device.

[0063] In some embodiments, such as Figure 3As shown, the reverse power supply circuit 1320 also includes a first voltage divider circuit 1321 and a second voltage divider circuit 1322. The first voltage divider circuit 1321 is connected to the power output terminal 1110 at its first end, the second end of which is connected to the ground terminal GND, and the third end of which is connected to the control terminal of the second transistor Q2. The first end of the second voltage divider circuit 1322 is connected to the power supply contact 1211 of the corresponding charging compartment 1210, the second end of which is connected to the second transistor Q2, and the third end of which is connected to the control terminal of the first transistor Q1.

[0064] Specifically, the first voltage divider circuit 1321 includes a second resistor R2 and a third resistor R3 connected in series between the power output terminal 1110 and the ground terminal GND. The potential point between the second resistor R2 and the third resistor R3 is connected to the control terminal of the second transistor Q2. The second voltage divider circuit 1322 includes a fourth resistor R4 and a fifth resistor R5. The fourth resistor R4 and the fifth resistor R5 are connected in series between the potential point between the first resistor R1 and the diode D1 and the second transistor Q2. The potential point between the fourth resistor R4 and the fifth resistor R5 is connected to the control terminal of the first transistor Q1.

[0065] In this embodiment, the voltage input to the control terminals of the first transistor Q1 and the second transistor Q2 is adjusted by the first voltage divider circuit and the second voltage divider circuit to prevent the transistors from burning out.

[0066] In some embodiments, the control module 1400 is used to send a first control signal to at least one of the power banks connected to the shared power bank rental device when the mains power connected to the power module 1100 is interrupted. The first control signal is used to control the power bank to supply power to the shared power bank rental device in reverse.

[0067] In this embodiment, the control module 1400 may obtain the remaining power of the power bank connected to the shared power bank rental device and / or the number of the charging compartment to which the power bank is connected, and determine the priority of the power bank connected to the shared power bank rental device based on the remaining power and / or the number, such that the power bank with a larger remaining power has a higher priority than the power bank with a smaller remaining power, and the power bank connected to the charging compartment with a smaller number has a higher priority than the power bank connected to the charging compartment with a larger number.

[0068] Furthermore, the control module 1400 can send a first control signal to the highest priority power bank when the connected mains power is interrupted, so that the power bank can reverse charge the power bank to the control module 1400.

[0069] In some embodiments, such as Figure 2As shown, the shared power bank rental device 1000 also includes a comparator 1500 and a reference voltage output module 1600. The reference voltage output module 1600 is used to output a reference voltage. The first input terminal of the comparator 1500 is connected to the power output terminal 1110, the second input terminal of the comparator 1500 is connected to the output terminal of the reference voltage output module 1600, and the output terminal of the comparator 1500 is connected to the control module 1400.

[0070] When the first input terminal of comparator 1500 is a non-inverting input terminal and the second input terminal of comparator 1500 is an inverting input terminal, if the voltage at the power supply output terminal 1110 is greater than the reference voltage, comparator 1500 will output a high level; if the voltage at the power supply output terminal 1110 is less than the reference voltage, comparator 1500 will output a low level.

[0071] When the first input terminal of comparator 1500 is an inverting input terminal and the second input terminal of comparator 1500 is a non-inverting input terminal, if the voltage at the power supply output terminal 1110 is greater than the reference voltage, comparator 1500 will output a high level; if the voltage at the power supply output terminal 1110 is less than the reference voltage, comparator 1500 will output a high level.

[0072] In this embodiment, when the mains power supply is normally supplying power to the shared power bank rental device, the voltage at the power output terminal 1110 will be greater than the reference voltage. When the power bank supplies power to the shared power bank rental device in reverse, due to the voltage drop across diode D1, the voltage at the power output terminal 1110 will be less than the reference voltage.

[0073] Based on the output of the comparator, this embodiment can determine whether the shared power bank rental device is powered by AC mains power or the power bank itself.

[0074] In some embodiments, the control module 1400 is used to control all switches 1310 in the switch module 1300 to open when the output result of the comparator 1500 indicates that the voltage at the power output terminal is less than the reference voltage, so that the shared power bank rental device 1000 stops charging the connected power bank.

[0075] In this embodiment, if the output result indicates that the voltage at the power output terminal is less than the reference voltage, meaning that the power supply for the shared power bank rental device is a power bank, then the switches 1310 corresponding to each charging compartment in the control switch module 1300 are all turned off, causing the shared power bank rental device 1000 to stop charging the connected power banks, thereby reducing the power consumption of the shared power bank rental device 1000 and ensuring the normal rental and return of power banks.

[0076] In some embodiments, such as Figure 2As shown, the shared power bank rental device 1000 also includes a linear regulator 1700. The input terminal of the linear regulator 1700 is connected to the power output terminal 1110, and the output terminal of the linear regulator 1700 is connected to the power pin of the control module 1400.

[0077] In this embodiment, the voltage at the power output terminal 1110 may be greater than the power supply voltage of the control module 1400. In order to supply power to the control module 1400, the voltage at the power output terminal 1110 can be converted by the linear regulator 1700 before supplying power to the control module 1400.

[0078] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A shared power bank rental device, characterized in that, It includes a power module, a charging case module, and a switch module. The charging case module includes multiple charging cases, and each charging case includes a power supply contact for connecting to the positive power terminal of a connected power bank. The switching module includes a reverse power supply circuit corresponding to each charging compartment. The reverse power supply circuit is connected between the power output terminal of the power module and the power supply contact of the corresponding charging compartment. The reverse power supply circuit is used to turn on when the voltage of the power supply contact of the corresponding charging compartment is greater than the voltage of the power output terminal, so that the power bank connected in the charging compartment with the voltage of the power supply contact greater than the voltage of the power output terminal supplies power to the shared power bank rental device; the reverse power supply circuit is also used to turn off when the voltage of the power supply contact of the corresponding charging compartment is less than or equal to the voltage of the power output terminal, so that the AC power connected to the power input terminal of the power module supplies power to the shared power bank rental device. 2.The power bank sharing and renting device of claim 1, wherein, The reverse power supply circuit includes a diode, the anode of which is connected to the power supply contact of the corresponding charging compartment, and the cathode of which is connected to the power output terminal. 3.The power bank sharing and renting device of claim 2, characterized in that, The reverse power supply circuit also includes a first resistor, which is connected in series with the diode between the power output terminal and the corresponding charging compartment contact.

4. The power bank sharing and renting device of claim 3, wherein, The reverse power supply circuit further includes a first transistor and a second transistor. The power module includes a first capacitor connected between the power output terminal and the ground terminal of the shared power bank rental device. The first transistor is connected in parallel with the first resistor. The second transistor is connected between the control terminal of the first transistor and the ground terminal. The control terminal of the second transistor is connected to the power output terminal.

5. The shared power bank rental device according to claim 4, characterized in that, The reverse power supply circuit further includes a first voltage divider circuit and a second voltage divider circuit. The first voltage divider circuit is connected to the power output terminal at its first end, the ground terminal at its second end, and the control terminal of the second transistor at its third end. The second voltage divider circuit is connected to the power supply contact of the corresponding charging compartment at its first end, the second voltage divider circuit at its second end, and the control terminal of the first transistor at its third end.

6. The power bank sharing and renting device of claim 1, wherein, The shared power bank rental device also includes a control module, the power pin of which is connected to the power output terminal; The switch module also includes a switch corresponding to each charging compartment, and the switch and the corresponding reverse power supply circuit are connected in parallel between the power output terminal and the power supply contact of the corresponding charging compartment. The control module is used to control the switching state of the switch so that the power module can charge the power bank in the charging compartment corresponding to the switched-on switch.

7. The power bank sharing and renting device of claim 6, wherein, The control module is used to send a first control signal to at least one of the power banks connected to the shared power bank rental device when the mains power connected to the power input terminal of the power module is interrupted. The first control signal is used to control the power bank to supply power to the shared power bank rental device in reverse.

8. The power bank sharing and renting device of claim 6, wherein, The shared power bank rental device also includes a comparator and a reference voltage output module. The reference voltage output module is used to output a reference voltage. The first input terminal of the comparator is connected to the power output terminal, the second input terminal of the comparator is connected to the output terminal of the reference voltage output module, and the output terminal of the comparator is connected to the control module.

9. The power bank sharing and renting device of claim 8, wherein, The control module is used to control all switches in the switching module to open when the output result of the comparator indicates that the voltage at the power output terminal is less than the reference voltage, so that the shared power bank rental device stops charging the connected power bank.

10. The power bank sharing and renting device of claim 6, wherein, The shared power bank rental device also includes a linear regulator, the input terminal of which is connected to the power output terminal, and the output terminal of which is connected to the power pin.

Images