Electronic equipment with battery power supply

Abstract

The utility model provides an electronic device with a battery power supply, the electronic device has a working mode and a standby mode, the electronic device comprises a control module and a self-locking switch circuit, the self-locking switch circuit is connected between the battery power supply and the control module, and when the electronic device is switched from the working mode to the standby mode, the self-locking switch circuit is connected with the control module. The self-locking switch circuit responds to a first signal output by the control module and controls the battery power supply and the control module to be disconnected, so that the battery power supply stops supplying power to the control module; and when the electronic equipment is switched from the standby mode to the working mode, the self-locking switch circuit responds to a second signal output by the control module and controls the battery power supply to be connected with the control module, so that the battery power supply supplies power to the control module. According to the invention, ultra-low power consumption of the electronic equipment in the standby mode is realized, the service cycle of the electronic equipment is prolonged, the frequency of charging or replacing a battery power supply by a user and the use cost are reduced, and better experience feeling is provided for the user.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and particularly to an electronic device with a battery power supply. Background Art

[0002] In practice, for the convenience of people's travel or emergency use, some portable electronic devices have emerged. Such electronic devices usually use batteries for power supply, such as in-vehicle air pumps, emergency starting power supplies, etc. After such electronic devices are used up, generally, users need to perform a manual shutdown operation to make the device stop working and stop consuming battery power. However, users may forget to shut down, resulting in the electronic device remaining in a working state and maintaining a high power consumption.

[0003] Therefore, some electronic devices have added a standby mode configured through software, that is, when it is detected that the electronic device has been used up or has not been operated for a long time, the electronic device is controlled to enter the standby mode, and the electronic device maintains a low-power standby in the standby mode.

[0004] However, since the battery power is limited, even if the electronic device enters the standby mode, it still has a certain power consumption and continuously consumes battery power. This undoubtedly shortens the single-use cycle of the electronic device, requiring users to replace the battery or recharge the battery again, bringing inconvenience to users and increasing some cost expenditures. Summary of the Utility Model

[0005] The utility model provides an electronic device with a battery power supply, which can solve the technical problem that existing battery-powered electronic devices cannot automatically cut off the power supply after being used up or still continuously consume battery power after entering the standby mode, resulting in a shortened service life of the electronic device.

[0006] In a first aspect, an embodiment of the present application provides an electronic device with a battery power supply, including a control module and a self-locking switch circuit; wherein, the electronic device has a working mode and a standby mode; the self-locking switch circuit is connected between the battery power supply and the control module;

[0007] When the electronic device switches from the working mode to the standby mode, the control module generates a first signal;

[0008] The self-locking switch circuit responds to the first signal output by the control module, controls the disconnection of the battery power supply and the control module, and makes the battery power supply stop supplying power to the control module;

[0009] When the electronic device switches from the standby mode to the working mode, the control module generates a second signal;

[0010] The self-locking switch circuit responds to the second signal output by the control module, controls the connection between the battery power supply and the control module, so that the battery power supply supplies power to the control module.

[0011] In some embodiments, the electronic device further includes a switch module connected to the control module;

[0012] The switch module responds to a first operation input externally, generates a first instruction and transmits it to the control module; the control module responds to the first instruction, controls the self-locking switch circuit to cut off the connection between the battery power supply and the control module, so that the battery power supply stops supplying power to the control module.

[0013] In some embodiments, the electronic device further includes one or more functional modules for performing corresponding functions of the electronic device, and a switching module, and the switching module is connected between the control module and the functional modules;

[0014] When the control module responds to the first instruction and controls the self-locking switch circuit to cut off the connection between the battery power supply and the control module, it also controls the switching module to disconnect the connection between the battery power supply and one or more functional modules, so that the battery power supply stops supplying power to one or more functional modules;

[0015] Alternatively, the switch module responds to a second operation input externally, generates a second instruction and transmits it to the control module; the control module responds to the second instruction, controls the switching module to disconnect the connection between the battery power supply and one or more functional modules, so that the battery power supply stops supplying power to one or more functional modules.

[0016] In some embodiments, when the electronic device is in the standby mode, the switch module responds to a third operation input externally, generates a third instruction and transmits it to the self-locking switch circuit;

[0017] The self-locking switch circuit responds to the third instruction, controls the connection between the battery power supply and the control module, so that the battery power supply supplies power to the control module.

[0018] In some embodiments, the switch module includes a first switch K1 and a third resistor R3;

[0019] The first end of the first switch K1 is connected to a first power supply input externally, and the second end of the first switch K1 is connected to the first input end of the control module; the first end of the third resistor R3 is connected to the second end of the first switch K1, and the second end of the third resistor R3 is connected to a preset voltage terminal.

[0020] In some embodiments, the self-locking switch circuit includes a first diode D1, a second diode D2, a first switching transistor Q1, a second switching transistor Q2, and a first resistor R1;

[0021] A first end of the first diode D1 is connected to a second end of the first switch K1; a first end of the second diode D2 is connected to a first output end of the control module, and a second end of the second diode D2 is connected to a second end of the first diode D1; a control end of the second switching transistor Q2 is connected to the second end of the first diode D1, and a second end of the second switching transistor Q2 is connected to a preset voltage terminal; a control end of the first switching transistor Q1 is connected to a first end of the second switching transistor Q2, a first end of the first switching transistor Q1 is connected to the first power supply, and a second end of the first switching transistor Q1 is connected to a power input end of the control module; a first end of the first resistor R1 is connected to the second end of the first switching transistor Q1, and a second end of the first resistor R1 is connected to the control end of the first switching transistor Q1.

[0022] In some embodiments, the electronic device further includes a linear voltage regulation module connected between the self-locking switch circuit and the control module.

[0023] In some embodiments, the linear voltage regulation module includes a linear voltage regulation chip U1, a second capacitor C2, and a third capacitor C3;

[0024] A first end of the linear voltage regulation chip U1 is connected to the second end of the first switching transistor Q1, a second end of the linear voltage regulation chip U1 is connected to the power input end of the control module, and a third end of the linear voltage regulation chip U1 is connected to the preset voltage terminal; a first end of the second capacitor C2 is connected to the first end of the linear voltage regulation chip U1, and a second end of the second capacitor C2 is connected to the preset voltage terminal; a first end of the third capacitor C3 is connected to the second end of the linear voltage regulation chip U1, and a second end of the third capacitor C3 is connected to the preset voltage terminal.

[0025] In some embodiments, the self-locking switch circuit further includes a filtering component;

[0026] The filtering component includes a first capacitor C1 and a second resistor R2 connected in parallel; a first end of the first capacitor C1 is connected to the second end of the first diode D1, and a second end of the first capacitor C1 is connected to the preset voltage terminal.

[0027] In some embodiments, the electronic device is an emergency starting power supply or a vehicle-mounted inflator.

[0028] An electronic device provided by an embodiment of the present application has a battery power supply, and the electronic device has a working mode and a standby mode. It includes a control module and a self-locking switch circuit, where the self-locking switch circuit is connected between the battery power supply and the control module. When the electronic device switches from the working mode to the standby mode, the self-locking switch circuit responds to a first signal output by the control module and controls the disconnection between the battery power supply and the control module, so that the battery power supply stops supplying power to the control module; when the electronic device switches from the standby mode to the working mode, the self-locking switch circuit responds to a second signal output by the control module and controls the connection between the battery power supply and the control module, so that the battery power supply supplies power to the control module. By controlling the conduction or disconnection between the battery power supply and the control module in a self-locking power-off manner before the electronic device enters the standby mode, the present application achieves ultra-low power consumption of the electronic device in the standby mode, extends the service life of the electronic device, reduces the frequency and usage cost of the user charging or replacing the battery power supply, and provides a better experience for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0030] Figure 1 It is a schematic structural diagram of an electronic device with a battery power supply provided by an embodiment of the present application;

[0031] Figure 2 It is a schematic structural diagram of an electronic device with a battery power supply provided by another embodiment of the present application;

[0032] Figure 3 It is a schematic structural diagram of an electronic device with a battery power supply provided by yet another embodiment of the present application;

[0033] Figure 4 It is a schematic structural diagram of an electronic device with a battery power supply provided by another embodiment of the present application;

[0034] Figure 5 It is a circuit diagram of an electronic device with a battery power supply provided by an embodiment of the present application.

[0035] Through the above-mentioned drawings, the clear embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and the textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific embodiments. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid obscuring the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0037] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment and do not mean a necessary sequence, unless it is stated that a certain sequence must be followed.

[0038] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein. The objects distinguished by "first", "second", etc. are usually of the same type and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects. The character " / " generally indicates an "or" relationship between the associated objects before and after. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0039] The present application intends to use a current transformer to replace the traditional sampling resistor for sampling the transmitted current and / or transmitted voltage. Based on the electromagnetic induction principle of the current transformer, after the input interface and the output interface are connected to the terminal, the current and / or voltage between the input interface and the output interface are induced to generate corresponding electrical signals, and the electrical signals are output to the control module to achieve direct sampling of the transmitted current and / or transmitted voltage of the data line in the working state. In the traditional sampling through a sampling resistor, due to the temperature drift phenomenon of the resistance value caused by the environmental temperature or the heat generated by itself, after the change in the sampling accuracy is amplified, the deviation value will be amplified sharply, resulting in a decrease in the sampling accuracy and the inability to accurately monitor the current value or voltage value.

[0040] The following uses specific embodiments to elaborate in detail on the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0041] Figure 1 The following is a schematic structural diagram of an electronic device with a battery power supply provided by an embodiment of the present application. For ease of description, only the parts related to the embodiment of the present application are shown. As Figure 1 shown, the electronic device with a battery power supply provided by the embodiment of the present application has a working mode and a standby mode, and includes a battery power supply 110, a control module 120, one or more functional modules 130, and a self-locking switch circuit 140.

[0042] In this embodiment, the battery power supply 110 is used to supply power to the control module 120 and one or more functional modules 130, so that the electronic device can work properly in the working mode.

[0043] Generally, an electronic device has one or more functional modules 130 for executing and implementing the corresponding functions of the electronic device. For example, the main function of a vehicle-mounted air pump is that during the driving of a vehicle, if the tire is punctured by a sharp object such as a nail or for other reasons and leaks air, the vehicle-mounted air pump is required to inflate the tire in time to supplement the tire pressure and avoid affecting driving safety due to insufficient tire pressure. That is, the functional module of the vehicle-mounted air pump can, under the control of its control module, inflate the tire and supplement the tire pressure. Another example is that the main function of an emergency starting power supply is that during the driving of a vehicle, due to the depletion of the vehicle battery power or other reasons, the vehicle cannot be started. At this time, it is necessary to quickly provide sufficient current to the vehicle battery through the emergency starting power supply to enable the vehicle to start smoothly and avoid being trapped due to battery depletion. That is, the functional module of the emergency starting power supply can, under the control of its control module, provide sufficient current to the vehicle battery to enable the vehicle to start smoothly.

[0044] The control module 120 in the electronic device usually realizes its preset various functions and is responsible for managing and controlling the overall operation of the device. The control module 120 is a key component in the electronic device and usually includes a microcontroller or a processor, a memory, an input / output interface, and other necessary circuits. These components work together to achieve the intelligent control and management of the device.

[0045] In some embodiments, for small and low-frequency electronic devices, the control module 120 may adopt a microcontroller such as a microcontroller unit (MCU), a digital signal processor (DSP), a programmable logic controller (PLC), a field programmable gate array (FPGA), or an application specific integrated circuit (ASIC). In a specific electronic device, a controller with appropriate power consumption, cost, and functions can be selected according to the implementation of its specific functional modules.

[0046] In this embodiment, when the electronic device switches from the working mode to the standby mode, the control module 120 generates a first signal indicating that the electronic device is about to enter the standby mode; when the electronic device switches from the standby mode to the working mode, the control module 120 generates a second signal indicating that the electronic device is about to enter the working mode.

[0047] In this embodiment, the self-locking switch circuit 140 is connected between the battery power supply 110 and the control module 120. The self-locking switch circuit 140 responds to the first signal output by the control module 120, controls the disconnection between the battery power supply 110 and the control module 120, so that the battery power supply 110 stops supplying power to the control module 120, that is, the control module 120 cannot control one or more functional modules 130, reducing the power consumption of the electronic device to close to 0 μA and reducing the power consumption of the battery power supply 110.

[0048] It can be understood that after the control module 120 detects that the functional module 130 has finished working, that is, when the electronic device is about to switch from the working mode to the standby mode, at this time, the control module 120 will generate a first signal indicating that the electronic device is about to enter the standby mode. The self-locking switch circuit 140 responds to the first signal output by the control module 120, controls the disconnection between the battery power supply 110 and the control module 120, so that the battery power supply 110 stops supplying power to the control module 120, so as to achieve that after the electronic device enters the standby mode, the battery power supply 110 no longer supplies power to one or more functional modules 130 in the device, reducing the power consumption of the electronic device to close to 0 μA and reducing the power consumption of the battery power supply 110.

[0049] Moreover, when the electronic device is about to switch from the standby mode to the working mode, the control module 120 will also generate a second signal indicating that the electronic device is about to enter the working mode. The self-locking switch circuit 140 responds to the second signal output by the control module 120, controls the connection between the battery power supply 110 and the control module 120, so that the battery power supply 110 starts to supply power to the control module 120, so as to achieve that after the electronic device enters the working mode, the battery power supply 110 continuously supplies power to one or more functional modules 130 in the device to enable it to complete the preset functions of the electronic device.

[0050] Figure 2Schematic diagram of the structure of an electronic device with a battery power supply provided by another embodiment of the present application. As Figure 2 shown, for the electronic device with a battery power supply provided by this embodiment, on the basis of any of the above embodiments, the electronic device further includes a switch module 150 connected to the control module 120.

[0051] In this embodiment, the switch module 150 responds to a first operation input externally, generates a first instruction and transmits it to the control module 120. The control module 120 responds to the first instruction and controls the self-locking switch circuit 140 to cut off the connection between the battery power supply 110 and the control module 120, so that the battery power supply 110 stops supplying power to the control module 120.

[0052] It can be understood that in addition to controlling the disconnection between the battery power supply 110 and the control module 120 through the first signal output by the control module 120, so that the battery power supply 110 stops supplying power to the control module 120, the self-locking switch circuit 140 provided in this embodiment can also manually control the disconnection between the battery power supply 110 and the control module 120 through the switch module 150, so that the battery power supply 110 stops supplying power to the control module 120.

[0053] In some embodiments, the switch module 150 responds to a first operation input externally, generates a first instruction, where the first operation can be a touch switch, a single click switch, a double click switch or a long press switch, and thus generates a first instruction and transmits it to the control module 120, and the control module 120 controls the self-locking switch circuit 140 to cut off the connection between the battery power supply 110 and the control module 120.

[0054] Figure 3 Schematic diagram of the structure of an electronic device with a battery power supply provided by another embodiment of the present application. As Figure 3 shown, for the electronic device with a battery power supply provided by this embodiment, on the basis of any of the above embodiments, the electronic device further includes a switching module 160, and the switching module 160 is connected between the control module 120 and one or more function modules 130.

[0055] In this embodiment, when the control module 120 responds to the first instruction and controls the self-locking switch circuit 140 to cut off the connection between the battery power supply 110 and the control module 120, it also controls the switching module 160 to disconnect the connection between the battery power supply 110 and one or more function modules 130, so that the battery power supply 110 stops supplying power to one or more function modules 130, that is, one or more function modules 130 stop working, and the electronic device enters the standby mode to reduce the power consumption of the electronic device.

[0056] Alternatively, in response to a second operation input externally, the switch module 150 generates a second instruction and transmits it to the control module 120. In response to the second instruction, the control module 120 controls the on-off module 160 to disconnect the connection between the battery power supply 110 and one or more functional modules 130, so that the battery power supply 110 stops supplying power to one or more functional modules 130, that is, one or more functional modules 130 stop working, and the electronic device enters the standby mode.

[0057] It can be understood that in this embodiment, the switch module 150 responds to the first operation or the second operation input externally, transmits the corresponding instruction to the control module 120, and the control module 120 can cut off the connection between the battery power supply 110 and the control module 120 and one or more functional modules 130 through the self-locking switch circuit 140 and the on-off module 160, so that the battery power supply 110 no longer supplies power to the control module 120 and one or more functional modules 130, reducing the power consumption of the electronic device and extending the service life of the electronic device.

[0058] Similarly, the second operation can also be a touch switch, a single-click switch, a double-click switch or a long-press switch, which can be preset to be different from the first operation and can be recognized by the control module 120.

[0059] In some other embodiments, when the electronic device is in the standby mode, the switch module 150 responds to a third operation input externally, generates a third instruction and transmits it to the self-locking switch circuit 140. In response to the third instruction, the self-locking switch circuit 140 controls the connection between the battery power supply 110 and the control module 120, so that the battery power supply 110 supplies power to the control module 120.

[0060] That is, the electronic device provided in this embodiment can automatically cut off or connect the power supply of the battery power supply 110 to the control module 120 through the self-locking switch circuit 140, and can also manually cut off or connect the power supply of the battery power supply 110 to the control module 120 through the switch module 150. It can be understood that the self-locking switch circuit 140 provided in this embodiment can not only automatically or manually cut off the connection between the battery power supply 110 and the control module 120 when one or more functional modules 130 stop working or need to stop working, so that the battery power supply 110 stops supplying power to the control module 120, but also when the user subjectively needs to restart the function simulation to make it work after the battery power supply 110 stops supplying power to the control module 120, by performing a third operation on the switch module 150, control the self-locking switch circuit 140 to conduct the connection between the power battery and the control module 120, so that the battery power supply 110 starts to supply power to the control module 120, and then control the functional module 130 to start working.

[0061] Similarly, the third operation can also be a touch switch, a single - click switch, a double - click switch, or a long - press switch, which can be preset to be different from the first operation and / or the second operation and can be recognized by the controlled module 120.

[0062] Figure 4 The structural schematic diagram of an electronic device with a battery power supply provided by another embodiment of the present application. As Figure 4 shown, the electronic device with a battery power supply provided in this embodiment, on the basis of any of the above - mentioned embodiments, further includes a linear voltage - regulating module 170.

[0063] In this embodiment, the linear voltage - regulating module 170 is connected between the self - locking switch circuit 140 and the control module 120, which can ensure that the voltage input from the battery power supply 110 to the control module 120 can be accurately regulated and can ensure that the voltage signal input to the module 120 is stable and pure.

[0064] Figure 5 The circuit diagram of an electronic device provided by an embodiment of the present application. As Figure 5 shown, the electronic device provided in this embodiment includes a battery power supply 110, a control module 120, one or more functional modules 130, a self - locking switch circuit 140, a switch module 150, a switching - on and - off module 160, and a linear voltage - regulating module 170.

[0065] As Figure 5 shown, in this embodiment, the switch module 150 includes a first switch K1 and a third resistor R3. Specifically, the first end of the first switch K1 is connected to the first power supply input externally, and the second end of the first switch K1 is connected to the first input end of the control module 120; the first end of the third resistor R3 is connected to the second end of the first switch K1, and the second end of the third resistor R3 is connected to the preset voltage terminal.

[0066] In this embodiment, the self - locking switch circuit 140 includes a first diode D1, a second diode D2, a first switching transistor Q1, a second switching transistor Q2, and a first resistor R1. Specifically, the first end of the first diode D1 is connected to the second end of the first switch K1; the first end of the second diode D2 is connected to the first output end of the control module 120, and the second end of the second diode D2 is connected to the second end of the first diode D1; the control end of the second switching transistor Q2 is connected to the second end of the first diode D1, and the second end of the second switching transistor Q2 is connected to the preset voltage terminal; the control end of the first switching transistor Q1 is connected to the first end of the second switching transistor Q2, the first end of the first switching transistor Q1 is connected to the first power supply, and the second end of the first switching transistor Q1 is connected to the power supply input end of the control module 120; the first end of the first resistor R1 is connected to the second end of the first switching transistor Q1, and the second end of the first resistor R1 is connected to the control end of the first switching transistor Q1.

[0067] In some embodiments, the self-locking switch circuit 140 further includes a filtering component. Specifically, the filtering module includes a first capacitor C1 and a second resistor R2 connected in parallel. Among them, the first end of the first capacitor C1 is connected to the second end of the first diode D1, and the second end of the first capacitor C1 is connected to the preset voltage terminal.

[0068] As Figure 5 shown, the linear voltage regulation module 170 includes a linear voltage regulation chip U1, a second capacitor C2, and a third capacitor C3. Specifically, the first end of the linear voltage regulation chip U1 is connected to the second end of the first switching transistor Q1, the second end of the linear voltage regulation chip U1 is connected to the power input terminal of the control module 120, and the third end of the linear voltage regulation chip U1 is connected to the preset voltage terminal; the first end of the second capacitor C2 is connected to the first end of the linear voltage regulation chip U1, and the second end of the second capacitor C2 is connected to the preset voltage terminal; the first end of the third capacitor C3 is connected to the second end of the linear voltage regulation chip U1, and the second end of the third capacitor C3 is connected to the preset voltage terminal.

[0069] Combined with the self-locking switch circuit 140 as Figure 5 shown, its working principle is as follows:

[0070] (1) When the electronic device switches from the working mode to the standby mode, the control module 120 will generate a first signal for indicating that the electronic device enters the upcoming standby mode. The self-locking switch circuit 140 responds to the first signal output by the control module 120, that is, the first signal is output from pin 2 of the MCU in the control module 120 to the A end of the self-locking switch circuit 140. After passing through the second diode D2, the voltage at the control end of the second switching transistor Q2 is pulled down, causing the second switching transistor Q2 to turn off. Furthermore, the first switching transistor Q1 also turns off, and the input end of the linear voltage regulation module 170 cannot be connected to the battery power supply 110, that is, the connection between the battery power supply 110 and the control module 120 is cut off, so that the battery power supply 110 stops supplying power to the control module 120. In order to achieve that after the electronic device enters the standby mode, the battery power supply 110 no longer supplies power to the control module 120 and other functional modules 130 in the device, so that the power consumption of the electronic device is reduced to close to 0 uA, reducing the power consumption of the battery power supply 110.

[0071] (2) When the electronic device is about to switch from the standby mode to the working mode, the control module 120 will also generate a second signal indicating that the electronic device enters the upcoming working mode. The self-locking switch circuit 140 responds to the second signal output by the control module 120, that is, the first signal is output from pin 2 of the MCU in the control module 120 to terminal A of the self-locking switch circuit 140. After passing through the second diode D2, the voltage at the control terminal of the second switching transistor Q2 is pulled up, causing the second switching transistor Q2 to conduct. Subsequently, the first switching transistor Q1 also conducts. The input terminal of the linear voltage regulator module 170 is connected to the battery power supply 110, that is, the connection between the battery power supply 110 and the control module 120 is realized, enabling the battery power supply 110 to start supplying power to the control module 120. After the electronic device enters the working mode, the battery power supply 110 can continuously supply power to the control module 120 and other functional modules 130 in the device, enabling the electronic device to work properly.

[0072] In this case, the user can also perform a third operation on the first switch K1. At this time, the externally connected first input power supply VCC pulls up the voltage at the control terminal of the second switching transistor Q2 through the first diode D1, causing the second switching transistor Q2 to conduct. Subsequently, the first switching transistor Q1 also conducts. The input terminal of the linear voltage regulator module 170 is connected to the battery power supply 110, that is, the connection between the battery power supply 110 and the control module 120 is conducted through the self-locking switch circuit 140, enabling the battery power supply 110 to start supplying power to the control module 120. Subsequently, the control module 120 can supply power to the functional module 130 and also control the functional module 130 to start working.

[0073] (3) When the electronic device is in the working mode or after the functional module 130 finishes working, the user can also manually cut off the connection between the battery power supply 110 and the control module 120, that is, the user can perform a first operation on the first switch K1. After recognizing the first operation, it generates a first instruction and transmits it to pin 3 of the MCU in the control module 120 through terminal B. At this time, the level at pin 3 of the MCU changes. Subsequently, the first signal is output from pin 2 to terminal A of the self-locking switch circuit 140, pulling down the voltage at the control terminal of the second switching transistor Q2 through the second diode D2. The same as the above process, the connection between the battery power supply 110 and the control module 120 is cut off, causing the battery power supply 110 to stop supplying power to the control module 120. At the same time, the control on-off module 160 disconnects the connection between the battery power supply 110 and the functional module 130, causing the battery power supply 110 to no longer supply power to the functional module 130.

[0074] In such a case, the user can also perform a second operation on the first switch K1. After recognizing the second operation, a second instruction is generated and transmitted to pin 3 of the MCU in the control module 120. At this time, the level of pin 3 of the MCU changes, and then the level of pin 9 of the MCU is changed, controlling the switching module 160 to disconnect the connection between the battery power supply 110 and the functional module 130, so that the battery power supply 110 no longer supplies power to the functional module 130 either.

[0075] It can be seen that the self-locking switch circuit 140 of the present application can realize whether the battery power supply 110 supplies power to the control module 120 through software control or manual operation, and is safe and reliable, and is applicable to various scenarios.

[0076] In summary, for the electronic device with a battery power supply provided by the embodiments of the present application, before the electronic device enters the standby mode, by adopting self-locking power-off and a manual switch to control the conduction or disconnection between the battery power supply and the control module, the ultra-low power consumption of the electronic device in the standby mode is realized, the service life of the electronic device is extended, the frequency and usage cost of the user charging or replacing the battery power supply are reduced, and a better experience is provided for the user.

[0077] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art, without departing from the spirit and scope protected by the claims of the present application, can make several simple deductions, deformations or replacements according to the idea of the present application, and all belong to the protection scope of the present application.

Claims

1. An electronic device with a battery power supply, characterized in that: The electronic device comprises a control module and a self-locking switch circuit; wherein the electronic device has a working mode and a standby mode; the self-locking switch circuit is connected between the battery power source and the control module; When the electronic device switches from the working mode to the standby mode, the control module generates a first signal; The self-locking switch circuit controls the battery power source and the control module to be disconnected in response to the first signal output by the control module, so that the battery power source stops supplying power to the control module; When the electronic device switches from the standby mode to the working mode, the control module generates a second signal; The self-locking switch circuit controls the battery power supply and the control module to be connected in response to the second signal output by the control module, so that the battery power supply supplies power to the control module.

2. The electronic device with battery power supply according to claim 1, characterized in that: Also includes a switch module connected to the control module; The switch module generates a first instruction in response to a first operation of an external input and transmits it to the control module; the control module controls the self-locking switch circuit in response to the first instruction to cut off the connection between the battery power supply and the control module, so that the battery power supply stops supplying power to the control module.

3. The electronic device with battery power supply according to claim 2, characterized in that: It also includes one or more function modules for executing the corresponding functions of the electronic device, and a switch module, wherein the switch module is connected between the control module and the function module; In response to the first instruction, the control module controls the self-locking switch circuit to cut off the connection between the battery power supply and the control module, and also controls the on-off module to cut off the connection between the battery power supply and one or more functional modules, so that the battery power supply stops supplying power to the one or more functional modules; Alternatively, the switch module generates a second instruction in response to a second operation of an external input and transmits it to the control module; the control module controls the on-off module in response to the second instruction to disconnect the battery power supply and one or more functional modules, so that the battery power supply stops supplying power to one or more functional modules.

4. The electronic device with battery power supply according to claim 3, characterized in that: When the electronic device is in standby mode, the switch module generates a third instruction in response to a third operation input from the outside and transmits the third instruction to the self-locking switch circuit; In response to the third instruction, the self-locking switch circuit controls the battery power source and the control module to be connected so that the battery power source supplies power to the control module.

5. The electronic device with battery power supply according to claim 2, characterized in that: The switch module includes a first switch K1 and a third resistor R3; The first end of the first switch K1 is connected to the first external input power supply, and the second end of the first switch K1 is used to connect to the first input end of the control module; the first end of the third resistor R3 is connected to the second end of the first switch K1, and the second end of the third resistor R3 is connected to the preset voltage end.

6. The electronic device with battery power supply according to claim 5, characterized in that: The self-locking switch circuit includes a first diode D1, a second diode D2, a first switch tube Q1, a second switch tube Q2 and a first resistor R1; The first end of the first diode D1 is connected to the second end of the first switch K1; the first end of the second diode D2 is connected to the first output end of the control module, and the second end of the second diode D2 is connected to the second end of the first diode D1; the control end of the second switch tube Q2 is connected to the second end of the first diode D1, and the second end of the second switch tube Q2 is connected to the preset voltage end; the control end of the first switch tube Q1 is connected to the first end of the second switch tube Q2, the first end of the first switch tube Q1 is connected to the first power supply, and the second end of the first switch tube Q1 is connected to the power input end of the control module; the first end of the first resistor R1 is connected to the second end of the first switch tube Q1, and the second end of the first resistor R1 is connected to the control end of the first switch tube Q1.

7. The electronic device with battery power supply according to claim 6, characterized in that: It also includes a linear voltage stabilizing module connected between the self-locking switch circuit and the control module.

8. The electronic device with battery power supply according to claim 7, characterized in that: The linear voltage stabilization module includes a linear voltage stabilization chip U1, a second capacitor C2 and a third capacitor C3; The first end of the linear voltage regulator chip U1 is connected to the second end of the first switch tube Q1, the second end of the linear voltage regulator chip U1 is connected to the power input end of the control module, and the third end of the linear voltage regulator chip U1 is connected to the preset voltage end; the first end of the second capacitor C2 is connected to the first end of the linear voltage regulator chip U1, and the second end of the second capacitor C2 is connected to the preset voltage end; the first end of the third capacitor C3 is connected to the second end of the linear voltage regulator chip U1, and the second end of the third capacitor C3 is connected to the preset voltage end.

9. The electronic device with battery power supply according to claim 6, characterized in that: The self-locking switch circuit also includes a filter component; The filter component includes a first capacitor C1 and a second resistor R2 connected in parallel; the first end of the first capacitor C1 is connected to the second end of the first diode D1, and the second end of the first capacitor C1 is connected to the preset voltage end.

10. The electronic device with battery power supply according to claim 1, characterized in that: The electronic device is an emergency starting power supply or a vehicle-mounted air pump.

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