Low-power-consumption active electronic lock

Abstract

The utility model discloses an active low-power-consumption electronic lock which comprises a power source, a first switch module, a second switch module, a trigger module and a control module. Wherein the power supply is electrically connected with the control module through the first switch module, the trigger module and the second switch module are both electrically connected with the controlled end of the first switch module, and the control module is electrically connected with the controlled end of the second switch module. Through the electrical connection structure, the effects of complete power failure and zero power consumption of the active electronic lock in a shutdown state are jointly achieved, so that the power consumption of the active electronic lock is effectively reduced, and the service life of the active electronic lock is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic locks, and particularly relates to a low-power active electronic lock. Background Art

[0002] The application of intelligent electronic locks in all walks of life is increasing day by day. The main application places of current intelligent electronic locks include household intelligent door locks, vehicle-mounted Internet of Things locks in the logistics industry, Internet of Things locks in the warehousing industry, Internet of Things locks in the power industry, etc. Compared with traditional mechanical locks, the main advantages of intelligent electronic locks are: convenient key management, convenient authorization management, convenient query record, convenient real-time upload record, etc.

[0003] Currently, most intelligent electronic locks are powered by disposable non-rechargeable batteries. Therefore, the battery life and the maintenance and replacement cycle of the battery have become important indicators for measuring the quality of intelligent locks. The traditional low-power method of electronic locks is to be in a low-power sleep state when the lock is not operating, and then wake up and enter the working state when there is a trigger source. The trigger source generally includes human body induction trigger, vibration trigger, Hall sensor or reed switch induction trigger, micro switch trigger, etc. The electronic locks using this low-power method have the following three disadvantages: First, the lock still has a large power consumption in the sleep state, resulting in insufficient overall battery life; Second, if there are damaged components during the production, manufacturing or transportation and assembly processes, such as damaged capacitors, the power consumption of the lock will increase significantly, leading to a sharp decline in the battery life; Third, program design loopholes or EMC interference, etc., cause the device to be unable to enter the sleep state or be frequently awakened from the sleep state, etc., which will lead to a significant increase in power consumption and a sharp decline in the battery life. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a low-power active electronic lock, which realizes the control of power-on and startup of the electronic lock through a circuit structure composed of a switch module, a trigger module, a battery and a control chip, and can achieve zero power consumption of the lock after power-off after completing the work task.

[0005] The low-power active electronic lock according to the first aspect embodiment of the utility model includes:

[0006] A power supply for providing electric energy;

[0007] A first switch module, the input end of the first switch module is electrically connected to the power supply;

[0008] A control module, which is electrically connected to the output end of the first switch module;

[0009] A trigger module, which is electrically connected to the controlled end of the first switch module;

[0010] A second switching module, the controlled end of the second switching module is electrically connected to the control module, and the output end of the second switching module is electrically connected to the controlled end of the first switching module.

[0011] According to some embodiments of the present invention, the first switching module includes:

[0012] A first MOS transistor, the source electrode of the first MOS transistor is electrically connected to the power supply, the drain electrode of the first MOS transistor is electrically connected to the control module, and the gate electrode of the first MOS transistor is electrically connected to the triggering module.

[0013] According to some embodiments of the present invention, the first switching module further includes:

[0014] A first capacitor, one end of the first capacitor is electrically connected to the drain electrode of the first MOS transistor, and the other end of the first capacitor is grounded;

[0015] A second capacitor, one end of the second capacitor is electrically connected to the gate electrode of the first MOS transistor, and the other end of the second capacitor is grounded;

[0016] According to some embodiments of the present invention, the first switching module further includes:

[0017] A first resistor, one end of the first resistor is electrically connected to the source electrode of the first MOS transistor;

[0018] A second resistor, one end of the second resistor is electrically connected to the other end of the first resistor, one end of the second resistor is also electrically connected to the triggering module, and the other end of the second resistor is electrically connected to the gate electrode of the first MOS transistor.

[0019] According to some embodiments of the present invention, the triggering module includes:

[0020] A first diode, the anode of the first diode is electrically connected to the controlled end of the first switching module;

[0021] A triggering switch, one end of the triggering switch is grounded, and the other end of the triggering switch is electrically connected to the cathode of the first diode.

[0022] According to some embodiments of the present invention, the triggering module further includes:

[0023] A second diode, the cathode of the second diode is electrically connected to the cathode of the first diode;

[0024] A third resistor, one end of the third resistor is electrically connected to the control module, and the other end of the third resistor is electrically connected to the anode of the second diode;

[0025] A fourth resistor, one end of the fourth resistor is electrically connected to the other end of the third resistor, and the other end of the fourth resistor is electrically connected to the control module;

[0026] A third capacitor, one end of the third capacitor is electrically connected to the control module, and the other end of the third capacitor is electrically connected to one end of the trigger switch.

[0027] According to some embodiments of the present invention, the second switch module includes:

[0028] A second MOS transistor, the gate of the second MOS transistor is electrically connected to the control module, the source of the second MOS transistor is grounded, and the drain of the second MOS transistor is electrically connected to the controlled end of the first switch module.

[0029] According to some embodiments of the present invention, the second switch module further includes:

[0030] A third diode, the anode of the third diode is electrically connected to the control module;

[0031] A fifth resistor, one end of the fifth resistor is electrically connected to the cathode of the third diode, and the other end of the fifth resistor is electrically connected to the gate of the second MOS transistor;

[0032] According to some embodiments of the present invention, the second switch module further includes:

[0033] A fourth capacitor, one end of the fourth capacitor is electrically connected to the gate of the second MOS transistor, and the other end of the fourth capacitor is grounded;

[0034] A sixth resistor, one end of the sixth resistor is electrically connected to the gate of the second MOS transistor, and the other end of the sixth resistor is grounded.

[0035] The low-power active electronic lock according to the embodiment of the present invention has at least the following beneficial effects: By electrically connecting the input end of the first switch module to the power supply, the output end of the first switch module to the control module, and the controlled end of the first switch module to the trigger module, it is realized to control the electrical connection and disconnection between the power supply and the control module through the trigger module, so that the entire system is powered on only when the trigger module receives the trigger source, thereby achieving zero power consumption of the active electronic lock in the non-working state. And because the electronic lock is completely powered off in the shutdown state, even if there are abnormal damages to devices such as capacitors that do not affect the function, it will not affect the overall power consumption. And because of this electrical connection structure, the system is powered on only when the trigger module receives the trigger source, so that the electronic lock does not have to worry about the device being abnormally awakened and generating additional power consumption in the completely shutdown state; By further electrically connecting the controlled end of the second switch module to the control module and the output end of the second switch module to the controlled end of the first switch module, it is realized that when the trigger source disappears, the powered-on control chip can maintain the conduction of the first switch module by controlling the second switch module, so as to maintain its own powered-on state. In addition, when the set standby time inside the control module is reached, or when the active electronic lock needs to enter the shutdown state for other reasons, the control module can also indirectly control the on-off of the first switch module by controlling the on-off of the second switch module, so as to cut off its own power supply and enter the shutdown state. By this way of completely entering the power-off state by the internal software, the energy consumption of the device is greatly reduced, and the degree of automatic control and controllability of the device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1 is a module connection diagram of the low-power active electronic lock according to the embodiment of the present invention;

[0038] Figure 2 is an electrical schematic diagram of the low-power active electronic lock according to the embodiment of the present invention.

[0039] Power supply 100, first switch module 200, control module 300, trigger module 400, second switch module 500. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0041] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0042] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the recited number, and "above", "below", "within", etc. are understood as including the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0043] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0044] The following Figure 1-2 will describe in detail the gas working duration monitoring device according to the embodiments of the present utility model with reference to the attached

[0045] Referring to Figure 1 , the present utility model provides a low-power active electronic lock, comprising:

[0046] A power supply 100 for providing electrical energy;

[0047] A first switch module 200, the input end of the first switch module 200 is electrically connected to the power supply 100;

[0048] A control module 300, electrically connected to the output end of the first switch module 200;

[0049] A trigger module 400, electrically connected to the controlled end of the first switch module 200;

[0050] A second switch module 500, the controlled end of the second switch module 500 is electrically connected to the control module, and the output end of the second switch module is electrically connected to the controlled end of the first switch module.

[0051] Specifically, in this embodiment, the power supply continuously provides the rated voltage. The first switch module 200 is disposed between the power supply 100 and the control module 300. That is, only when the first switch module 200 is turned on, the power supply 100 can supply power to the control module 300. The conduction and cutoff of the first switch module 200 are controlled by an external signal. Therefore, a controllable switch should be selected for the first switch module, such as a contactor, a relay, a metal-oxide-semiconductor field effect transistor (MOS transistor), a bipolar junction transistor (BJT), etc. The output end of the first switch module 200 is electrically connected to the power supply pin in the control module 300, and the controlled end of the first switch module 200 is electrically connected to the trigger module 400. Therefore, the first switch module 200 can receive the trigger signal sent by the trigger module 400, such as a low-potential signal, a high-potential signal, a digital signal, an analog signal, etc., and determine the on / off of the first switch module 200 according to the trigger signal. The trigger module 400 can use a micro switch or a reed switch, etc., to convert a physical signal into an electrical signal. The control module 300 includes a control chip and other peripheral modules and components. The control chip can use a microcontroller unit (MCU). The other peripheral modules and components are common modules and components in the field of active electronic locks, and can be increased or decreased according to actual needs. According to the above electrical connection structure, the technical effect can be achieved that only when the trigger module 400 is triggered, the power supply 100 supplies power to the control module 300, and the entire electronic lock system is powered on. In addition, the device further includes a second switch module 500. The output end of the second switch module 500 is electrically connected to the controlled end of the first switch module 200, and the controlled end of the second switch module 500 is electrically connected to the pin of the control chip in the control module 300. Therefore, the control chip in the control module 300 can control the on / off of the first switch module 200 through the second switch module 500, so as to achieve the effect of maintaining the power-on of the control module 300 itself, or cutting off its own power supply to make itself enter a completely power-off sleep state. The input end of the second switch module 500 can be selectively electrically connected to the power supply 100, grounded, or electrically connected to other pins of the control module according to the actual situation (that is, the selection of the controllable switch of the first switch module 200 and its internal electrical connection situation). Through the above electrical connection structure, the following technical effects are jointly achieved: 1. The electronic lock has completely zero power consumption in the shutdown state; 2. Since the electronic lock is completely powered off in the shutdown state, even if there are abnormal damages of devices such as capacitors that do not affect the function, it will not affect the overall power consumption; 3. Since the entire system is powered on only when the trigger module 400 is triggered, the electronic lock does not need to worry about the device being abnormally awakened and generating additional power consumption in the completely shutdown state.

[0052] Referring to Figure 2 , further, in some embodiments of the present invention, the first switch module 200 includes:

[0053] The first MOS transistor G1, the source of the first MOS transistor G1 is electrically connected to the power supply 100, the drain of the first MOS transistor G1 is electrically connected to the control module 200, and the gate of the first MOS transistor G1 is electrically connected to the trigger module 400. Specifically, in this embodiment, the source of the first MOS transistor G1 is electrically connected to the power supply 100 that continuously provides a DC voltage, that is, the source of the first MOS transistor G1 continuously inputs a voltage through the V_BAT power port; the drain of the first MOS transistor G1 is electrically connected to the power-on pin of the control chip in the control module 200, specifically, to the pin named +3V; the gate of the first MOS transistor G1 is electrically connected to the trigger module 400. According to the characteristics of the MOS transistor, whether the source and drain of the MOS transistor are conducting is determined by the voltage between the gate and the source of the MOS transistor. More specifically, for example, when the first MOS transistor G1 is a PMOS transistor, the first MOS transistor G1 will conduct only when the gate-source voltage VGS of the first MOS transistor G1 is less than a certain threshold. Therefore, if the first MOS transistor G1 is to be made to conduct, a low-level signal should be input to its gate. Therefore, at this time, if the first MOS transistor G1 is to be made to conduct to power on the system, the trigger module 400 should output a low-level signal; when the first MOS transistor G1 is an NMOS transistor, the first MOS transistor G1 will conduct only when the gate-source voltage VGS of the first MOS transistor G1 is greater than a certain threshold. Therefore, if the first MOS transistor G1 is to be made to conduct, a high-level signal should be input to its gate. Therefore, at this time, if the first MOS transistor G1 is to be made to conduct to power on the system, the trigger module 400 should output a high-level signal. Using a MOS transistor as a switch in the first switch module 200 has the following advantages: 1. When the MOS transistor is in the conducting state, its internal resistance is very small, which can reach the milliohm level. Therefore, its conduction loss is extremely low, thus greatly reducing the power consumption of the active electronic lock; 2. The MOS transistor has a fast response speed and can quickly switch the on-off state of the circuit, so that the active electronic lock can achieve a fast response when triggered; 3. The MOS transistor only requires a very low gate voltage to achieve conduction or cut-off, further reducing the energy consumption during the switching process of the active electronic lock, and reducing the complexity and cost of the circuit design. Thus, the structure of the active electronic lock is effectively simplified, its production cost is reduced, and the overall performance is improved; 3. The MOS transistor has no secondary breakdown phenomenon, greatly reducing its damage rate and improving the safety and reliability of the active electronic lock.

[0054] Referring to Figure 2 , further, in some embodiments of the present invention, the first switch module 200 further includes:

[0055] The first capacitor C1, one end of the first capacitor C1 is electrically connected to the drain of the first MOS transistor G1, and the other end of the first capacitor C1 is grounded;

[0056] A second capacitor C2, one end of the second capacitor C2 is electrically connected to the gate of the first MOS transistor G1, and the other end of the second capacitor C2 is grounded;

[0057] Specifically, in this embodiment, one end of the first capacitor C1 is connected in parallel with the +3V interface of the control module 300 and is commonly electrically connected to the drain of the first MOS transistor G1. The other end of the first capacitor C1 is grounded. Therefore, the first capacitor C1 functions as energy storage and voltage stabilization in the circuit. In the absence of a capacitor, if the power consumption in the circuit suddenly increases, the voltage of the power supply 100 will be pulled down, resulting in noise and ringing phenomena. A large-capacity capacitor can temporarily store electrical energy to stabilize the voltage of the power supply 100. One end of the second capacitor C2 is connected in parallel with the second resistor R2 and is commonly electrically connected to the gate of the first MOS transistor G1. The other end of the second capacitor C2 is grounded. Therefore, the second capacitor functions as filtering in the circuit and can filter out clutter for the control signal (such as a low-level signal or a high-level signal, etc.) applied to the gate of the first MOS transistor G1, thereby shielding the influence of other non-trigger signals and preventing the active electronic lock from being accidentally triggered and powered on in the shutdown state, thus improving the stability of the device and reducing the unnecessary power consumption of the device.

[0058] Referring to Figure 2 , further, in some embodiments of the present invention, the first switch module 200 further includes:

[0059] A first resistor R1, one end of the first resistor R1 is electrically connected to the source of the first MOS transistor G1;

[0060] A second resistor R2, one end of the second resistor R2 is electrically connected to the other end of the first resistor R1. One end of the second resistor R2 is also electrically connected to the trigger module 400, and the other end of the second resistor R2 is electrically connected to the gate of the first MOS transistor G1.

[0061] Specifically, in this embodiment, the input terminal R1 of the first resistor is electrically connected to both the source of the first MOS transistor G1 and the control module 300. The output terminal of the first resistor R1 is electrically connected to the input terminal of the second resistor R2. The input terminal of the second resistor is also electrically connected to the trigger module 400. The output terminal of the second resistor R2 is electrically connected to the gate of the first MOS transistor G1. Therefore, the input terminal of the first resistor R1 and the source of the first MOS transistor G1 are equipotential points, and the output terminal of the second resistor R2 and the gate of the first MOS transistor G1 are equipotential points. Due to the existence of resistors R1 and R2 and both resistors being electrically connected to the trigger module 400, when the trigger module 400 is not triggered, there is a potential difference between the above two equipotential points. This potential difference is also the power supply difference between the gate and the source of the first MOS transistor G1, that is, the gate-source voltage VGS. By the potential signal output by the trigger module 400, the gate-source voltage VGS can be changed, thereby controlling the conduction and cutoff between the drain and the source of the first MOS transistor G1, and thus realizing the power-on and power-off shutdown of the system. For example, when the first MOS transistor G1 is a PMOS transistor, when there is no trigger source, the gate-source voltage VGS of G1 is the voltage difference between the input terminal of R1 (i.e., the power supply provided by the power supply 100) and the output terminal of R2. At this time, the gate-source voltage VGS is relatively large. When there is a trigger source, the trigger module 400 outputs a low-level signal, making the gate-source voltage VGS of G1 become lower and lower than the threshold value, thereby enabling the source and the drain of the first MOS transistor G1 to conduct, realizing the power-on of the system.

[0062] Referring to Figure 2 , further, in some embodiments of the present invention, the trigger module 400 includes:

[0063] A first diode D1, the anode of the first diode D1 is electrically connected to the controlled terminal of the first switch module 200;

[0064] A trigger switch S1, one end of the trigger switch S1 is grounded, and the other end of the trigger switch S1 is electrically connected to the cathode of the first diode D1.

[0065] Specifically, in this embodiment, the first diode D1 is used to control the unidirectional flow of current, so that the current can only flow from the first switch module 200 to the trigger module 400, preventing current from flowing back into the system during the shutdown state and generating extra power. The reverse leakage current of the diode should be as small as possible to reduce battery leakage. The trigger switch S1 is a micro switch or a reed switch, etc., which is used to convert a physical signal into an electrical signal. The input end of the trigger switch S1 is grounded, and the output end of the trigger switch S1 is electrically connected to the cathode of the first diode D1. When there is no trigger source, the trigger switch S1 is disconnected. At this time, the power supply 100 provides a high potential to the controlled end of the first switch module 200. When the trigger switch S1 is pressed, the controlled end of the first switch module 200 is grounded, so as to achieve the effect of outputting a low-level signal to the controlled end of the first switch module 200, and further control the first switch module 200 to conduct.

[0066] Referring to Figure 2 , further, in some embodiments of the present invention, the trigger module 400 further includes:

[0067] A second diode D2, the cathode of the second diode D2 is electrically connected to the cathode of the first diode D1;

[0068] A third resistor R3, one end of the third resistor R3 is electrically connected to the control module 300, and the other end of the third resistor R3 is electrically connected to the anode of the second diode D2;

[0069] A fourth resistor R4, one end of the fourth resistor R4 is electrically connected to the other end of the third resistor R3, and the other end of the fourth resistor R4 is electrically connected to the control module 300;

[0070] A third capacitor C3, one end of the third capacitor is electrically connected to the control module, and the other end of the third capacitor is electrically connected to one end of the trigger switch.

[0071] Specifically, the output end of the trigger switch S1 is electrically connected to the cathode of the second diode D1. The second diode D2 is used to control the unidirectional flow of current, enabling the current to only flow from the control module 300 to the trigger module 400. The input end of the third resistor R3 is electrically connected to the power supply 100. The input end of the fourth resistor R4 is electrically connected to the output end of the third resistor R3, and the output end of the fourth resistor R4 is electrically connected to the KEY pin of the control chip in the control module 300. When the trigger switch S1 is not connected, the KEY pin of the control chip in the control module 100 is electrically connected to its own +3.0V power-on pin, with no voltage input and remaining in a low-level state. When the trigger switch S1 is connected, a low-level signal is output to the controlled end of the first switch module 200, thereby causing the first switch module to conduct, powering on the system, and the +3.0V power-on pin of the control chip starts to output a +3.0V power-on voltage. Since the KEY pin is grounded via R4 and D2 at this time, it still remains in a low-level state. Subsequently, the trigger switch resets after being triggered and returns to the open state. The KEY pin is no longer grounded, while the +3.0V power-on pin of the control chip electrically connected to it still has a 3.0V voltage at this time, causing the KEY pin to be in a high-level state, that is: once the control module 300 completes power-on initialization, the KEY pin is powered on. Therefore, through the above electrical connection method, touching the trigger switch S1 can output a high level to the control module 100, that is, the trigger source signal can be collected by the control chip in the control module 100 in the power-on state, enabling the trigger source signal to be used for other control logics; in addition, in addition to the trigger switch S1, multiple other trigger sources can be connected in parallel on both sides of the trigger switch S1 in the trigger module 400. When the parallel lock status monitoring system is used as a trigger source, it can actively wake up the lock and report status data when the lock status changes without human intervention, thereby ensuring the real-time and accuracy of the lock status information; the positive terminal of the third capacitor C3 is electrically connected to the third resistor R3, the fourth resistor R4, and the power supply module and the power supply 100 via the fourth resistor R4. The negative terminal of the third capacitor C3 is grounded, mainly playing the role of energy storage and voltage stabilization. At the same time, the positive terminal of the third capacitor C3 is also electrically connected to the KEY pin, and can also play a filtering role for the control module 300 to prevent the control module 300 from erroneously receiving trigger signals.

[0072] Referring to Figure 2 , further, in some embodiments of the present invention, the second switch module 500 includes:

[0073] The second MOS transistor G2, the gate of the second MOS transistor G2 is electrically connected to the control module 300, the source of the second MOS transistor G2 is grounded, and the drain of the second MOS transistor G2 is electrically connected to the controlled end of the first switching module 200. Specifically, in this embodiment, the second MOS transistor G2 is an NMOS type MOS transistor. Only when the gate-source voltage VGS of the second MOS transistor G2 is greater than a certain threshold, the second MOS transistor G2 will conduct. Since the source of the second MOS transistor G2 is grounded, therefore, to make the second MOS transistor G2 conduct, a high-level signal should be input to its gate. The gate of the second MOS transistor G2 is electrically connected to the VOUT_EN pin of the control chip in the control module 300. When the first switching module 200 conducts to power on the control module 300, the control chip in the control module 300 outputs a high level to the VOUT_EN pin, so that the source and drain of the second MOS transistor G2 conduct. Since the drain of the second MOS transistor G2 is electrically connected to the controlled end of the first switching module 200, the above operation grounds the controlled end of the first switching module 200, so that the controlled end of the first switching module 200 (i.e., the gate of the first MOS transistor) remains at a low level, so that the first switching module 200 continuously conducts and maintains the system powered on; when the internal timing of the control chip in the control module 300 reaches the standby time, the control chip in the control module 300 outputs a low level to the VOUT_EN pin, so that the source and drain of the second MOS transistor G2 are turned off, and the controlled end of the first switching module 200 (i.e., the gate of the first MOS transistor) returns to a high level, so that the first switching module 200 is turned off, and the system enters a fully powered-off sleep state.

[0074] Referring to Figure 2 , further, in some embodiments of the present invention, the second switching module 500 further includes:

[0075] A third diode D3, the anode of the third diode D3 is electrically connected to the control module 300;

[0076] A fifth resistor R5, one end of the fifth resistor R5 is electrically connected to the cathode of the third diode D3, and the other end of the fifth resistor R5 is electrically connected to the gate of the second MOS transistor;

[0077] Specifically, in this embodiment, the anode of the third diode D3 is electrically connected to the VOUT_EN pin of the control chip in the control module 300. The cathode of the third diode D3 is electrically connected to the input end of the fifth resistor R5. The output end of the fifth resistor R5 is electrically connected to the gate of the second MOS transistor G2. That is, the VOUT_EN port is electrically connected to the gate of the second MOS transistor G2 via the third diode D3 and the fifth resistor R5. Among them, the third diode D3 is used to control the unidirectional flow of current, so that the current can only flow from the control chip to the gate of the second MOS transistor G2, preventing current from flowing back into the control module 300 in the shutdown state and generating additional power.

[0078] Referring to Figure 2 , further, in some embodiments of the present invention, the second switch module 500 further includes:

[0079] A fourth capacitor C4, one end of the fourth capacitor C4 is electrically connected to the gate of the second MOS transistor G2, and the other end of the fourth capacitor C4 is grounded;

[0080] A sixth resistor R6, one end of the sixth resistor R6 is electrically connected to the gate of the second MOS transistor G2, and the other end of the sixth resistor R6 is grounded.

[0081] Specifically, in this embodiment, the positive terminal of the fourth capacitor C4 is electrically connected to the gate of the second MOS transistor, and the negative terminal of the fourth capacitor is grounded. Therefore, the fourth capacitor C4 plays a filtering role, preventing the gate of the second MOS transistor G2 from receiving incorrect clutter signals and causing accidental conduction, thereby generating unnecessary power consumption.

[0082] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A low-power active electronic lock, characterized in that, Comprising: A power supply for providing electrical energy; A first switch module, the input end of the first switch module being electrically connected to the power supply; A control module, electrically connected to the output end of the first switch module; A trigger module, electrically connected to the controlled end of the first switch module; A second switch module, the controlled end of the second switch module being electrically connected to the control module, and the output end of the second switch module being electrically connected to the controlled end of the first switch module.

2. The low-power active electronic lock according to claim 1, characterized in that, The first switch module includes: A first MOS transistor, the source electrode of the first MOS transistor being electrically connected to the power supply, the drain electrode of the first MOS transistor being electrically connected to the control module, and the gate electrode of the first MOS transistor being electrically connected to the trigger module.

3. The low-power active electronic lock according to claim 2, characterized in that The first switch module further includes: A first capacitor, one end of the first capacitor being electrically connected to the drain electrode of the first MOS transistor, and the other end of the first capacitor being grounded; A second capacitor, one end of the second capacitor being electrically connected to the gate electrode of the first MOS transistor, and the other end of the second capacitor being grounded.

4. The low-power active electronic lock according to claim 2, characterized in that, The first switch module further includes: A first resistor, one end of the first resistor being connected to the power supply; A second resistor, one end of the second resistor being electrically connected to the other end of the first resistor, one end of the second resistor also being electrically connected to the trigger module, and the other end of the second resistor being electrically connected to the gate electrode of the first MOS transistor.

5. The low-power active electronic lock according to claim 1, characterized in that, The trigger module includes: A first diode, the anode of the first diode being electrically connected to the controlled end of the first switch module; A trigger switch, one end of the trigger switch being grounded, and the other end of the trigger switch being electrically connected to the cathode of the first diode.

6. The low-power active electronic lock according to claim 5, wherein The trigger module further includes: A second diode, the cathode of the second diode being electrically connected to the cathode of the first diode; A third resistor, one end of the third resistor being electrically connected to the control module, and the other end of the third resistor being electrically connected to the anode of the second diode; A fourth resistor, one end of the fourth resistor being electrically connected to the other end of the third resistor, and the other end of the fourth resistor being electrically connected to the control module; A third capacitor, one end of the third capacitor being electrically connected to the control module, and the other end of the third capacitor being electrically connected to one end of the trigger switch.

7. The low-power active electronic lock according to claim 1, characterized in that The second switch module includes: A second MOS transistor, the gate electrode of the second MOS transistor being electrically connected to the control module, the source electrode of the second MOS transistor being grounded, and the drain electrode of the second MOS transistor being electrically connected to the controlled end of the first switch module.

8. The low-power active electronic lock according to claim 7, wherein The second switch module further includes: A third diode, the anode of the third diode being electrically connected to the control module; A fifth resistor, one end of the fifth resistor being electrically connected to the cathode of the third diode, and the other end of the fifth resistor being electrically connected to the gate electrode of the second MOS transistor.

9. The low-power active electronic lock according to claim 7, characterized in that The second switch module further includes: A fourth capacitor, one end of the fourth capacitor being electrically connected to the gate electrode of the second MOS transistor, and the other end of the fourth capacitor being grounded; The sixth resistor, one end of the sixth resistor is electrically connected to the gate of the second MOS transistor, and the other end of the sixth resistor is grounded.

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