Emergency power supply device and electronic system

Abstract

The utility model discloses an emergency power supply device and electronic system, including power input interface J1, power supply output interface J2, boost module, boost control module and energy storage module, wherein power input interface J1 is used for connecting external power supply, and power supply output interface J2 is used for connecting the power input of electronic equipment, and the output of energy storage module is connected with boost module, and boost control module is connected with boost module, and is used for controlling boost module to convert the input voltage of external power supply into the working voltage required by electronic equipment, thereby when external power supply is the mobile terminal such as mobile phone of low output voltage or mobile power supply, through the effect of boost module can boost the output voltage of mobile phone or mobile power supply and convert into the working voltage required by electronic equipment, thereby supplies power for electronic equipment, and the use of electronic equipment is convenient.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology for electronic devices, and in particular to an emergency power supply device and electronic system. Background Technology

[0002] Smart locks have become an integral part of daily life due to their excellent security, convenience, aesthetic design, and wide applicability. However, their reliance on battery power presents a significant risk: if the battery runs out and is not replaced or recharged in time, and the user does not have the mechanical key, the door will be locked. Although most smart locks currently have an external emergency power port for temporary power from a power bank, in reality, people often only carry their mobile phones when they go out. Even if a mobile phone has reverse charging capabilities, its standard 5V output voltage is usually far lower than the voltage required for the smart lock motor to operate (such as 7.4V, 9V, 12V, etc.), thus failing to power the lock. Therefore, without a compatible power source, users are highly susceptible to being unable to open the door. Utility Model Content

[0003] This utility model provides an emergency power supply device and electronic system that can use a mobile terminal (such as a mobile phone, tablet, etc.) or a mobile power supply with low output voltage to power electronic devices, making it convenient for the use of electronic devices.

[0004] To achieve the above objectives, this utility model provides an emergency power supply device for electronic devices, including a power input interface J1, a power output interface J2, a boost module, a boost control module, and an energy storage module.

[0005] The power input interface J1 is used to connect to an external power source, the power output interface J2 is used to connect to the power input port of the electronic device, the energy storage module is connected to the output terminal of the boost module, and the boost control module is connected to the boost module to control the boost module to convert the input voltage of the external power source into the operating voltage required by the electronic device.

[0006] Furthermore, the boost module includes resistors R1 and R2, inductor L1, MOSFET Q2, and diode D1; the boost control module includes chip U1, bidirectional transient suppression diode D2, capacitor C4, and capacitor C3; one end of resistor R1, one end of resistor R2, the VIN and CE pins of chip U1, and one end of bidirectional transient suppression diode D2 are all connected to the voltage input pin 4 of power input interface J1; the other ends of resistor R1 and resistor R2 are both connected to one end of inductor L1 and the CS pin of chip U1. The N pin is connected to the positive terminal of the inductor L1 and the collector of the MOSFET Q2. The gate of the MOSFET Q2 is connected to the LDRV pin of the chip U1, and the source of the MOSFET Q2 is grounded. The other end of the bidirectional transient suppression diode D2 is grounded. One end of the capacitor C3 and one end of the capacitor C4 are both connected to the CE pin of the chip U1. The other ends of the capacitor C3 and the other ends of the capacitor C4 are both grounded. The BAT pin of the chip U1 and the negative terminal of the diode D1 are both connected to the voltage output pin 5 of the power supply output interface J2.

[0007] Furthermore, the boost control module also includes a capacitor C2, a resistor R5, and a resistor R6; one end of the resistor R5 and one end of the resistor R6 are both connected to the FB pin of the chip U1, the other end of the resistor R6 is connected to the negative terminal of the diode D1, the other end of the resistor R5 and the GND pin of the chip U1 are both grounded, one end of the capacitor C2 is connected to the CT pin of the chip U1, and the other end is grounded.

[0008] Furthermore, the energy storage module includes at least two supercapacitors, which are connected in series to the negative terminal of diode D1.

[0009] Furthermore, the energy storage module includes a supercapacitor C5, a supercapacitor C6, and a diode D3; the positive terminal of the supercapacitor C5 is connected to the negative terminal of the diode D1, the negative terminal of the supercapacitor C5 is connected to the negative terminal of the diode D3, the positive terminal of the diode D3 is connected to the positive terminal of the supercapacitor C6, and the negative terminal of the supercapacitor C6 is grounded.

[0010] Furthermore, both the power input interface J1 and the power output interface J2 are TYPE-C interfaces. The power input interface J1 also includes a voltage input pin 2, which is connected to the voltage input pin 4. The power output interface also includes a voltage output pin 2, which is connected to the voltage output pin 5.

[0011] This utility model also provides an electronic system, including an electronic device and an emergency power supply device, wherein the emergency power supply device is the emergency power supply device described above.

[0012] Furthermore, the electronic device is a smart door lock.

[0013] Furthermore, the external power source is a mobile terminal or a mobile power supply.

[0014] Beneficial Effects: This utility model provides an emergency power supply device for electronic devices, comprising a power input interface J1, a power output interface J2, a boost module, a boost control module, and an energy storage module. The power input interface J1 is used to connect to an external power source, and the power output interface J2 is used to connect to the power input port of the electronic device. The energy storage module is connected to the output terminal of the boost module, and the boost control module is connected to the boost module to control the boost module to convert the input voltage of the external power source into the operating voltage required by the electronic device. Therefore, when the external power source is a mobile terminal such as a mobile phone or a power bank with a low output voltage, the boost module can boost the output voltage of the mobile phone or power bank to the operating voltage required by the electronic device, thereby providing power to the electronic device and facilitating its use. Attached Figure Description

[0015] The technical solution and beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the emergency power supply device of this utility model;

[0017] Figure 2 This is a circuit diagram of the emergency power supply device of this utility model. Detailed Implementation

[0018] Please refer to the diagram, where the same component symbols represent the same components. The principle of this utility model is illustrated by example in a suitable computing environment. The following description is based on the illustrated specific embodiments of this utility model, and should not be considered as limiting other specific embodiments not detailed herein.

[0019] See Figure 1 and Figure 2 The emergency power supply device 100 for electronic devices according to this utility model embodiment includes a power input interface J1, a power output interface J2, a boost module 11, a boost control module 12, and an energy storage module 13.

[0020] The power input interface J1 is used to connect to an external power source, the power output interface J2 is used to connect to the power input port of the electronic device, the energy storage module 13 is connected to the output terminal of the boost module 11, and the boost control module 12 is connected to the boost module 11 to control the boost module 11 to convert the input voltage of the external power source into the operating voltage required by the electronic device.

[0021] The electronic devices include, but are not limited to, smart door locks, and may also include other electronic devices such as safes. The external power source can be a mobile terminal such as a mobile phone or tablet, or a power bank. This invention uses the boost module 11 to boost the low output voltage of the mobile phone or power bank to the operating voltage required by the electronic device, thereby powering the electronic device and facilitating its use.

[0022] The boost module 11 includes resistors R1 and R2, inductor L1, MOSFET Q2, and diode D1. The boost control module includes chip U1, bidirectional transient suppression diode D2, capacitor C4, and capacitor C3. One end of resistor R1, one end of resistor R2, the VIN and CE pins of chip U1, and one end of bidirectional transient suppression diode D2 are all connected to the voltage input pin 4 of the power input interface J1. The other ends of resistors R1 and R2 are both connected to one end of inductor L1 and the CSN pin of chip U1. The other end of L1 is connected to the positive terminal of diode D1 and the collector of MOSFET Q2. The gate of MOSFET Q2 is connected to the LDRV pin of chip U1, and the source of MOSFET Q2 is grounded. The other end of bidirectional transient suppression diode D2 is grounded. One end of capacitor C3 and one end of capacitor C4 are both connected to the CE pin of chip U1. The other ends of capacitor C3 and C4 are both grounded. The negative terminal of diode D1 is the output terminal of boost module 11, and it and the BAT pin of chip U1 are both connected to the voltage output pin 5 of power supply output interface J2.

[0023] Furthermore, the boost control module 12 also includes a capacitor C2, a resistor R5, and a resistor R6; one end of the resistor R5 and one end of the resistor R6 are both connected to the FB pin of the chip U1, the other end of the resistor R6 is the negative terminal of the diode D1, the other end of the resistor R5 and the GND pin of the chip U1 are both grounded, one end of the capacitor C2 is connected to the CT pin of the chip U1, and the other end is grounded.

[0024] Furthermore, the energy storage module 13 can be implemented using supercapacitors, and the number of supercapacitors can be, for example, one, two, or more. Optionally, the energy storage module 13 includes at least two supercapacitors, wherein the at least two supercapacitors are connected in series to the negative terminal of the diode D1.

[0025] For example, such as Figure 2 As shown, the energy storage module 13 is implemented using two supercapacitors. Specifically, the energy storage module 13 includes supercapacitor C5, supercapacitor C6 and diode D3; the positive terminal of supercapacitor C5 is connected to the negative terminal of diode D1, the negative terminal of supercapacitor C5 is connected to the negative terminal of diode D3, the positive terminal of diode D3 is connected to the positive terminal of supercapacitor C6, and the negative terminal of supercapacitor C6 is grounded.

[0026] Understandable Figure 2 The model and values ​​of the components in the circuit can be determined based on the input voltage of the external power supply and the operating voltage required by the electronic equipment, and there are no restrictions on this. For example, in some implementations, the parameters of some components can be as follows: the resistance values ​​of resistors R1 and R2 are both 0.27Ω, the model of MOSFET Q2 is APM2300AAC-TRG SOT23, the diodes D1 and D3 are both SS34 diodes, the resistance value of resistor R5 is 2KΩ, the resistance value of resistor R6 is 62KΩ, the bidirectional transient suppression diode D2 is an SMAJ6.5CA diode, the capacitance value of capacitor C4 is 10uF and the rated voltage is 50V, the capacitance value of capacitor C3 is 10nF and the rated voltage is 50V, the capacitance value of capacitor C2 is 1nF and the rated voltage is 50V, and the capacitance values ​​of supercapacitors C5 and C6 are both 1F and the rated voltage is 5.5V.

[0027] In other embodiments, the energy storage module 13 can also be implemented using four supercapacitors. For example, two supercapacitors can be connected in series before the negative terminal of diode D3 and two supercapacitors can be connected in series after the positive terminal of diode D3. Supercapacitors with different capacitance values ​​and rated voltages can be selected according to the number of supercapacitors.

[0028] Optionally, both the power input interface J1 and the power output interface J2 are TYPE-C interfaces. The power input interface J1 further includes a voltage input pin 2, which is connected to a voltage input pin 4. The power output interface further includes a voltage output pin 2, which is connected to a voltage output pin 5. Of course, in other embodiments, the power input interface J1 and the power output interface J2 may also be USB interfaces or other interfaces, and there is no limitation thereto.

[0029] The circuit principle of the emergency power supply device of this utility model will be further introduced below:

[0030] In this invention, chip U1 is a boost converter control chip. The signal output from the LDRV pin controls the on / off state of MOSFET Q2, thereby controlling the duty cycle of MOSFET Q2 to achieve voltage boosting in boost module 11. An external power supply, such as the voltage provided by a mobile phone, is VCC3. VCC3 powers chip U1 through the VIN pin and enables chip U1 through diode D2, capacitor C3, and capacitor C4, controlling its operation. The FB pin of chip U1 is a feedback pin, which collects the output voltage of boost module 11 through resistors R5 and R6, controlling the output of the LDRV pin based on the feedback output voltage. Energy storage module 13 is connected to the output of boost module 11, stabilizing the output voltage. Besides powering electronic devices such as smart door locks through pins 2 and 5 of power output interface J2, the output voltage of boost module 11 also charges the supercapacitor in energy storage module 13, storing energy. Through the charging and discharging compensation effect of the supercapacitor, the output voltage is stabilized.

[0031] This utility model embodiment also provides an electronic system, including an electronic device and the emergency power supply device described in the above embodiments. The emergency power supply device and the electronic device can be independent of each other, connected via a power output interface J2, or the emergency power supply device can be integrated into the electronic device.

[0032] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An emergency power supply device for electronic equipment, characterized in that, It includes a power input interface J1, a power output interface J2, a boost module, a boost control module, and an energy storage module; The power input interface J1 is used to connect to an external power source, the power output interface J2 is used to connect to the power input port of the electronic device, the energy storage module is connected to the output terminal of the boost module, and the boost control module is connected to the boost module to control the boost module to convert the input voltage of the external power source into the operating voltage required by the electronic device.

2. The emergency power supply device according to claim 1, characterized in that, The boost module includes resistors R1 and R2, inductor L1, MOSFET Q2, and diode D1. The boost control module includes chip U1, bidirectional transient suppression diode D2, capacitor C4, and capacitor C3. One end of resistor R1, one end of resistor R2, the VIN and CE pins of chip U1, and one end of bidirectional transient suppression diode D2 are all connected to the voltage input pin 4 of power input interface J1. The other ends of resistors R1 and R2 are both connected to one end of inductor L1 and the CSN pin of chip U1. One end of inductor L1 is connected to the positive terminal of diode D1 and the collector of MOSFET Q2. The gate of MOSFET Q2 is connected to the LDRV pin of chip U1, and the source of MOSFET Q2 is grounded. The other end of the bidirectional transient suppression diode D2 is grounded. One end of capacitor C3 and one end of capacitor C4 are both connected to the CE pin of chip U1. The other ends of capacitor C3 and capacitor C4 are both grounded. The BAT pin of chip U1 and the negative terminal of diode D1 are both connected to the voltage output pin 5 of power supply output interface J2.

3. The emergency power supply device according to claim 2, characterized in that, The boost control module also includes capacitor C2, resistor R5 and resistor R6; one end of resistor R5 and one end of resistor R6 are both connected to the FB pin of chip U1, the other end of resistor R6 is connected to the negative terminal of diode D1, the other end of resistor R5 and the GND pin of chip U1 are both grounded, one end of capacitor C2 is connected to the CT pin of chip U1, and the other end is grounded.

4. The emergency power supply device according to claim 2, characterized in that, The energy storage module includes at least two supercapacitors, which are connected in series to the negative terminal of diode D1.

5. The emergency power supply device according to claim 4, characterized in that, The energy storage module includes supercapacitor C5, supercapacitor C6, and diode D3; the positive terminal of supercapacitor C5 is connected to the negative terminal of diode D1, the negative terminal of supercapacitor C5 is connected to the negative terminal of diode D3, the positive terminal of diode D3 is connected to the positive terminal of supercapacitor C6, and the negative terminal of supercapacitor C6 is grounded.

6. An electronic system, characterized in that, It includes electronic equipment and an emergency power supply device, wherein the emergency power supply device is the emergency power supply device according to any one of claims 1-5.

7. The electronic system according to claim 6, characterized in that, The electronic device is a smart door lock.

8. The electronic system according to claim 6, characterized in that, The external power source is a mobile terminal or a mobile power bank.

Images