An uninterruptible power supply box system

Abstract

The utility model relates to the technical field of uninterrupted power supply, especially an uninterrupted power supply box system, comprising a shell and a power supply female port arranged on one side of the shell, further comprising: a plurality of independent power supply modules for storing and outputting electric energy, the independent power supply modules are detachably connected with the shell; a management module for managing all the independent power supply modules, the management module is arranged inside the shell and connected with the power supply female port; a plurality of state display modules for outputting the working state and energy storage state of the corresponding independent power supply modules; the independent power supply modules and the state display modules are connected with the management module respectively. The power supply state of the plurality of independent power supply modules is switched through the management module, the power supply current is kept stable, and uninterrupted power supply is realized.

Description

Technical Field

[0001] This utility model relates to the field of uninterruptible power supply technology, and in particular to an uninterruptible power supply box system. Background Technology

[0002] A traditional uninterruptible power supply (UPS) is a device that provides continuous power for a short period of time when the mains power fails or the voltage is abnormal. Its main function is to protect critical equipment such as computers, servers, medical equipment, and communication systems, preventing data loss, equipment damage, or business interruption due to power outages.

[0003] Currently, the concept of uninterruptible power supply (UPS) is being used to miniaturize power supplies for power-sensitive electronic devices (such as VR and MR devices). These devices, limited by size and weight, have internal batteries with insufficient capacity for long battery life. To extend the battery life of electronic devices, an external power source is typically used. However, existing external power sources (such as power banks) have fixed batteries with limited capacity and cannot be replaced without interruption, resulting in poor scalability and adaptability. Therefore, we propose an uninterruptible power supply box system. Utility Model Content

[0004] To address the technical problems in the background art, this utility model proposes an uninterruptible power supply box system.

[0005] The technical solution proposed by this utility model is: an uninterruptible power supply box system, including a housing and a power supply female port disposed on one side of the housing, and further including: Multiple independent power supply modules are used to store and output electrical energy, and the independent power supply modules are detachably connected to the housing; A management module is used to manage all independent power supply modules. The management module is located inside the housing and connected to the power supply port. Multiple status display modules are used to output the working status and energy storage status of the corresponding independent power supply modules; The independent power supply module and the status display module are respectively connected to the management module; the independent power supply module includes a battery cell, a battery cell female port and a battery cell charging port, the battery cell is connected to the battery cell female port and the battery cell charging port, and multiple battery cell slots are opened in the housing, and the independent power supply module is set in the battery cell slots.

[0006] Preferably, the management module includes a microprocessor, a discharge module, a Bluetooth module, a cell switching submodule, and a connection port matching the female port of the cell. The discharge module is connected to the cell switching submodule; the microprocessor is connected to the discharge module, the Bluetooth module, the cell switching module, and the connection port.

[0007] Preferably, the cell switching submodule includes a cell switching circuit matching the number of cells. The cell switching circuit includes two connected switching control chips, namely a first switching control chip and a second switching control chip. A MOS transistor is connected to one end of the first switching control chip, and a resistor is connected to the gate of the MOS transistor. A resistor and a capacitor are connected to the input end of the second switching control chip, and one end of the capacitor is grounded. One end of resistor two is connected to resistor three, and resistor three is connected in parallel with capacitor two and then connected to the source of MOS transistor; a bidirectional diode is connected between the gate and source of MOS transistor, and a diode is connected between the source and drain of MOS transistor.

[0008] Preferably, the discharge module includes a boost circuit and a power supply circuit. The boost circuit is connected to the output terminal of the cell switching circuit and is used to boost the output voltage of the cell from 3.7 volts to 5 volts. The output terminal of the boost circuit is connected to the power supply port through the power supply circuit and is used to supply power to an external load. The boost circuit includes a synchronous boost DC / DC converter, multiple filter energy storage capacitors connected to the input and output terminals of the synchronous boost DC / DC converter, multiple voltage divider resistors, multiple current limiting resistors, an inductor, and a status indicator LED. The power supply circuit includes an interface master control chip and multiple filter capacitors connected to the master control chip. The output terminal of the boost circuit is connected to one input terminal of the master control chip.

[0009] Preferably, the status display module includes multiple LEDs of different colors, each LED of a certain color has an input resistor connected to its input terminal, and each LED of a certain color has an output terminal connected to a microprocessor. The LEDs penetrate the surface of the housing.

[0010] Preferably, the housing includes an upper shell and a lower shell, which are snapped together.

[0011] The beneficial effects of this utility model are: 1. This utility model features multiple independent power supply modules, each corresponding to a cell switching submodule. Each independent power supply module has a cell charging port. When the charge of one cell falls below a set value (10%), it can quickly switch to another cell to ensure uninterrupted power supply to the load. Since each cell is connected to a male connection port via a female cell port and placed in a cell slot, the independent power supply module with insufficient charge can be removed after opening the casing and charged using AC power through the cell charging port. This improves the maintainability and expandability of the system, allowing users to replace independent power supply modules without interrupting power.

[0012] 2. In this utility model, the switching control chip and the switching control chip are connected in a two-stage configuration to reduce the probability of false triggering during switching; a MOSFET is used as an electronic switch to control the connection and disconnection between the independent power supply module and the load, reducing the power interruption time during switching; and energy is stored through an inductor to provide continuous energy to the load during switching, thereby improving switching efficiency and output voltage stability. Attached Figure Description

[0013] Figure 1 This is an exploded view of the uninterruptible power supply box system of this utility model; Figure 2 This is a block diagram of an uninterruptible power supply box system according to the present invention; Figure 3 This is a schematic diagram of the cell switching circuit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the boost circuit in an embodiment of the present invention; Figure 5 This is a schematic diagram of the power supply circuit in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the microprocessor pin structure in an embodiment of this utility model.

[0014] In the diagram: 1. Housing; 2. Independent power supply module; 3. Management module; 4. Status display module; 5. Power supply female port; 6. Battery cell; 7. Battery cell female port; 8. Battery cell charging port; 9. Battery cell slot; 10. Microprocessor; 11. Discharge module; 12. Bluetooth module; 13. Battery cell switching sub-module; 14. Connection male port; 15. Battery cell switching circuit; 16. Upper shell; 17. Lower shell; 18. Detailed Implementation

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0016] refer to Figure 1-2 The technical solution proposed by this utility model is as follows: An uninterruptible power supply (UPS) box system includes: a housing 1, two independent power supply modules 2, a management module 3, a status display module 4, and a power supply port 11 installed on one side of the housing 1. The housing 1 includes an upper shell 101 and a lower shell 102, which are snapped together. The independent power supply module 2 is used to store and output electrical energy, and it is detachably connected to the housing 1. Specifically: The independent power supply module 2 includes a battery cell 21, a battery cell female port 22, and a battery cell charging port 23. Multiple battery cell slots 24 are provided inside the housing 1, and the independent power supply module 2 is installed within these slots. The battery cell slots 24 are used to house the independent power supply module 2. When the charge of a battery cell 21 falls below a set value (10%), the battery cell 21 can be removed from the housing 1. Since each battery cell 21 has an independent charging port 23, it is easy to charge the battery cell 21 using mains power.

[0017] The management module 3 manages all independent power supply modules 2 to enable power switching between multiple independent power supply modules 2. The management module 3 is installed inside the housing 1 and connected to the power supply female port 11. Specifically, the management module 3 includes a microprocessor 31, an electronic discharge module 32, a Bluetooth module 33, a cell switching submodule 34, and a connection male port 35 that matches the cell female port 22. The electronic discharge module 32 is connected to the cell switching submodule 34; the microprocessor 31 is connected to the electronic discharge module 32, the Bluetooth module 33, the cell switching module, and the connection male port 35.

[0018] In this embodiment, as Figure 3 The cell switching submodule 34 includes a cell switching circuit 341 matching the number of cells 21. The cell switching circuit 341 includes two connected switching control chips, Q4 and Q3. A MOSFET is connected to one end of the switching control chip Q4, and a resistor R27 is connected to the gate of the MOSFET. A resistor R35 and a capacitor C38 are connected to the input of the switching control chip Q3, and one end of the capacitor C38 is grounded. A resistor R36 is connected to one end of the resistor R35. The resistor R36 and the capacitor C34 are connected in parallel and then connected to the source of the MOSFET, and the source of the MOSFET is grounded. A bidirectional diode is connected between the gate and source of the MOSFET, and a diode U7 is connected between the source and drain of the MOSFET.

[0019] In this embodiment, two identical cell switching circuits 341 are provided, each connected to a corresponding independent power supply module 2. This ensures that removing one independent power supply module 2 does not affect the normal power supply of the other independent power supply module 2.

[0020] Among them, the two status display modules 4 are used to output the working status and energy storage status of the corresponding independent power supply module 2, including displaying status information through light signals of different colors and displaying status information through character information containing power information (such as the display module of a virtual reality device). This embodiment takes displaying status information through light signals of different colors as an example.

[0021] Independent power supply module 2 and status display module 4 are respectively connected to management module 3.

[0022] The process of switching power supply between the two battery cells 21 is as follows: In this embodiment, as Figure 3 and Figure 6 As shown, the output terminal BAT1 of one battery cell 21 is connected to the input terminal of the battery cell switching circuit 341. The microprocessor 31 obtains the battery cell 21's charge level through analog-to-digital conversion. That is, it acquires the voltage signals of the two battery cells 21 through the ADC1 and ADC2 pins; and determines the charge level of the two battery cells 21 based on the digital voltage signals of the battery cells 21. If it is necessary to switch battery cells 21, that is, when the charge level of the currently working battery cell 21 is lower than a set value (10% charge level) and the charge level of the other battery cell 21 is greater than 10%, the microprocessor 31 stops sending drive signals to the GBAT1 pin and instead sends drive signals to the GBAT2 pin (the GBAT1 pin is connected to the currently working battery cell 21, and the GBAT2 pin is connected to the non-working battery cell 21). At this time, the gate of the MOS transistor matched with the working battery cell 21 does not receive a drive signal, the MOS transistor is turned off, the current is cut off, and the battery cell 21 is no longer used for power supply.

[0023] At this time, the gate of the MOSFET matched with the previously inactive cell 21 receives the drive signal and turns on, allowing current to flow, and cell 21 enters the power supply state. This completes the rapid power supply switching between the two cells 21. Using a MOSFET as an electronic switch to control the on / off connection between cell 21 and the load, unlike traditional contact switches, results in faster switching speeds to ensure continuous power supply.

[0024] The electronic module 32 includes a boost circuit and a power supply circuit. The boost circuit is connected to the output terminal of the cell switching circuit 341 and is used to boost the output voltage of the cell 21 from 3.7 volts to 5 volts. The output terminal of the boost circuit is connected to the power supply port 11 through the power supply circuit to supply power to the external load.

[0025] The boost circuit includes a synchronous boost DC / DC converter, multiple filter and energy storage capacitors connected to the input and output terminals of the synchronous boost DC / DC converter, multiple voltage divider resistors, multiple current limiting resistors, and status indicator LEDs.

[0026] In this embodiment, as Figure 4As shown, the synchronous boost DC / DC converter in the boost circuit is model TPS61236PRWLR. Its VIN pin is connected to filter and energy storage capacitors: C49, C50, C51, C52, and C53; its VOUT pin is connected to filter and energy storage capacitors: C59, C26, C27, C28, and C53; the VBAT pin is connected to the output of the cell switching circuit 341; voltage divider resistors R6 and R8 form a voltage divider network, determining the output voltage (the resistance values ​​of these two resistors are set according to the output voltage); current limiting resistor R9 is used to limit the input current; the status indicator LED LED4 is used to display the operating status of the boost circuit; a lit status indicator LED indicates that the boost circuit is working normally. Furthermore, if a default state needs to be set and to prevent pins from floating, pull-up resistors R7 and R5 can be set as needed; inductor L1 is used for energy storage and supplies power to the load during cell 21 switching.

[0027] The status display module 4 includes multiple LEDs 41 of different colors. Each LED 41 of each color has an input resistor connected to its input terminal and an output terminal connected to the microprocessor 31. The LEDs 41 extend through the surface of the housing 1.

[0028] In this embodiment, the LEDs 41 are green, yellow, red, and white, representing the current battery cell 21's charge level and operating status, respectively. The microprocessor 31 analyzes the collected voltage data of the battery cell 21 to determine the charge level and outputs drive signals through pins (e.g., PB0-PB7) to illuminate the corresponding LEDs 41. For example, if the red LED 41 is lit, it indicates that the battery cell 21's charge level is below 10%; if the yellow LED 41 is lit, it indicates that the battery cell 21's charge level is between 11% and 20%; if the green LED 41 is lit, it indicates that the battery cell 21's charge level is between 21% and 100%; and if the white LED 41 is lit, it indicates that the corresponding battery cell 21 is in a power-on state.

[0029] The power supply circuit includes an interface control chip and multiple filter capacitors connected to the control chip. The output of the boost circuit is connected to one input of the control chip.

[0030] In this embodiment, as Figure 5 As shown, the interface control chip is model GT-USB-7010AO, which supports Type C interface.

[0031] The output terminal VOUT of the boost circuit is connected to the VBUS pin of the interface master control chip. Filter capacitors C30 and C31 are connected in parallel, with their two ends connected to the VBUS pin and GND respectively. The filter capacitors serve to filter the output current, ensuring stability, for example, at 3 amps.

[0032] In this embodiment, the Bluetooth module 33 is used to connect with external Bluetooth devices (such as a load with a Bluetooth module) or smart terminals, and can feed back power data to the Bluetooth device or smart terminal, making it convenient for users to query power information.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] It is understood that those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles described, the implementation of the present invention may have any changes or modifications.

Claims

1. An uninterruptible power supply box system, comprising a housing (1) and a power supply port (11) disposed on one side of the housing (1), characterized in that, Also includes: Multiple independent power supply modules (2) are used to store and output electrical energy, and the independent power supply modules (2) are detachably connected to the housing (1); A management module (3) is used to manage all independent power supply modules (2). The management module (3) is located inside the housing (1) and connected to the power supply port (11). Multiple status display modules (4) are used to output the working status and energy storage status of the corresponding independent power supply module (2); The independent power supply module (2) and the status display module (4) are respectively connected to the management module (3); the independent power supply module (2) includes a battery cell (21), a battery cell mother port (22) and a battery cell charging port (23). The battery cell (21) is connected to the battery cell mother port (22) and the battery cell charging port (23). Multiple battery cell slots (24) are opened in the housing (1). The independent power supply module (2) is set in the battery cell slots (24).

2. The uninterruptible power supply box system according to claim 1, characterized in that, The management module (3) includes a microprocessor (31), an electron discharging module (32), a Bluetooth module (33), a cell switching submodule (34), and a connection port (35) that matches the cell female port (22). The electron discharging module (32) is connected to the cell switching submodule (34); the microprocessor (31) is connected to the electron discharging module (32), the Bluetooth module (33), the cell (21) switching module, and the connection port (35).

3. The uninterruptible power supply box system according to claim 2, characterized in that, The cell switching submodule (34) includes a cell switching circuit (341) matching the number of cells (21). The cell switching circuit (341) includes two connected switching control chips, namely a first switching control chip and a second switching control chip. A MOS transistor is connected to one end of the first switching control chip, and a resistor is connected to the gate of the MOS transistor. A resistor and a capacitor are connected to the input end of the second switching control chip, and one end of the capacitor is grounded. One end of resistor two is connected to resistor three, and resistor three is connected in parallel with capacitor two and then connected to the source of MOS transistor; a bidirectional diode is connected between the gate and source of MOS transistor, and a diode is connected between the source and drain of MOS transistor.

4. The uninterruptible power supply box system according to claim 3, characterized in that, The discharge module (32) includes a boost circuit and a power supply circuit. The boost circuit is connected to the output terminal of the cell switching circuit (341) and is used to boost the output voltage of the cell (21) from 3.7 volts to 5 volts. The output terminal of the boost circuit is connected to the power supply port (11) through the power supply circuit to supply power to the external load. The boost circuit includes a synchronous boost DC / DC converter, multiple filter energy storage capacitors connected to the input and output terminals of the synchronous boost DC / DC converter, multiple voltage divider resistors, multiple current limiting resistors, status display LEDs (41), and an inductor. The power supply circuit includes an interface master control chip and multiple filter capacitors connected to the master control chip. The output terminal of the boost circuit is connected to one input terminal of the master control chip.

5. The uninterruptible power supply box system according to claim 4, characterized in that, The status display module (4) includes multiple LEDs (41) of different colors. Each LED (41) of each color has an input resistor connected to its input terminal and an output terminal connected to a microprocessor (31). The LEDs (41) penetrate the surface of the housing (1).

6. The uninterruptible power supply box system according to claim 5, characterized in that, The housing (1) includes an upper shell (101) and a lower shell (102), which are snapped together.

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