Intelligent lock emergency power supply circuit and intelligent lock

Abstract

The utility model provides an intelligent lock emergency power supply circuit and an intelligent lock. The intelligent lock emergency power supply circuit comprises a power generation module, an energy storage module, a control module, a switch module and a door lock module. The control module is arranged between the energy storage module and the door lock module and used for controlling the energy storage module to supply power to the door lock module in a delayed mode. Energy is stored through the energy storage module, under the control of the control module, when the electric energy stored in the energy storage module is large enough and the output voltage is larger than the first threshold value, the door lock module can obtain enough electric energy, and a user can conduct unlocking operation; or when the output voltage is smaller than the second threshold value due to the fact that the electric energy stored in the energy storage module is too small, the door lock module stops working after being powered off. In addition, the control module can detect the electric energy of the energy storage module in real time and conduct low-power-consumption unlocking operation, the problem that a small-power generator is not matched with an intelligent lock with the high-power requirement is solved, the emergency level of the intelligent lock is improved, and customer experience and safety are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of smart locks, and in particular, relates to a smart lock emergency power supply circuit and a smart lock. Background Art

[0002] Smart locks have been widely used. When the battery is out of power, smart locks in related technologies generally use hand-cranking to generate electricity. The handle drives a small-power generator to generate electricity to provide power for unlocking. However, the output power of the small-power generator is relatively small and cannot meet the real-time unlocking power requirements of smart locks. Utility Model Content

[0003] The purpose of this application is to provide a smart lock emergency power supply circuit and a smart lock, aiming to solve the problem in the related art that the output power of the generator of the smart lock does not match the power requirement of the smart lock.

[0004] A first aspect of an embodiment of the present application provides an emergency power supply circuit for a smart lock, comprising: a power generation module, an energy storage module, a control module, a switch module and a door lock module.

[0005] The output end of the power generation module is connected to the input end of the energy storage module.

[0006] The output end of the energy storage module is connected to the input end of the switch module.

[0007] The output end of the switch module is connected to the input end of the door lock module.

[0008] After the switch module is closed and turned on, the door lock module is powered on and starts working.

[0009] The control module is arranged between the energy storage module and the door lock module, and is used to control the energy storage module to supply hysteresis power to the door lock module.

[0010] In one embodiment, it further includes a voltage divider module; a first end of the voltage divider module is grounded, a second end is connected to the output end of the energy storage module, and a voltage divider end is connected to the input end of the control module.

[0011] In one embodiment, the switch module includes a first MOS tube and a second MOS tube; the gate of the first MOS tube is connected to the drain of the second MOS tube; the drain of the first MOS tube is connected to the input end of the door lock module; the source of the first MOS tube is connected to the output end of the energy storage module;

[0012] The source of the second MOS tube is grounded, and the gate is connected to the voltage dividing end of the voltage dividing module.

[0013] In one embodiment, the control module includes: a first comparator and a second comparator; the positive input terminal of the first comparator is connected to the voltage dividing terminal of the voltage dividing module, the output terminal is connected to the first end of the first resistor, the second end of the first resistor is respectively connected to the positive input terminal of the second comparator and the first end of the second resistor, and the second end of the second resistor is connected to the output terminal of the second comparator;

[0014] The output end of the second comparator is connected to the input end of the switch module.

[0015] In one implementation, the control module at least includes: a third MOS tube and a third resistor;

[0016] The gate of the third MOS tube is respectively connected to the gate of the first MOS tube and the drain of the second MOS tube;

[0017] The drain of the third MOS tube is connected to the first end of the third resistor, and the second end of the third resistor is connected to the voltage dividing end of the voltage dividing module and the gate of the second MOS tube respectively;

[0018] The source of the third MOS tube is connected to the output end of the energy storage module.

[0019] In one embodiment, the control module is disposed between the switch module and the door lock module, and is used to send a first enabling electrical signal to the door lock module to control the operation of the door lock module;

[0020] The control module comprises an analog-to-digital conversion circuit, and the input end of the analog-to-digital conversion circuit is connected to the output end of the switch module;

[0021] The output end of the analog-to-digital conversion circuit outputs high and low level digital signals to the door lock module, so that the door lock module performs unlocking work or stops unlocking work according to the received high and low level digital signals.

[0022] In one embodiment, the control module is disposed between the energy storage module and the door lock module, and is used to send a second enabling electrical signal to the door lock module to control the operation of the door lock module;

[0023] The control module includes a fourth MOS tube and a fourth resistor;

[0024] The gate of the fourth MOS tube is connected to the voltage dividing end of the voltage dividing module; the drain of the fourth MOS tube is connected to the output end of the energy storage module; the source of the fourth MOS tube is respectively connected to the first end of the fourth resistor and the door lock module, and is used to send a second enabling electrical signal to the door lock module to control the operation of the door lock module;

[0025] The second end of the fourth resistor is grounded.

[0026] In one embodiment, the door lock module further includes a light emitting diode, which emits light to prompt the user to unlock the door.

[0027] In one embodiment, a rectifier module is further included. The rectifier module is located between the power generation module and the energy storage module and is used to rectify the alternating current generated by the power generation module to obtain direct current. The energy storage module stores direct current energy.

[0028] A second aspect of the embodiment of the present application provides a smart lock, comprising an emergency power supply circuit and a handle as described in any of the above smart lock items; the handle is connected to the motor in the power generation module;

[0029] When the handle is shaken, the handle drives the motor in the power generation module to rotate and generate electricity.

[0030] Compared with the prior art, the embodiments of the present application have the following beneficial effects: the present application can realize the accumulation and storage of electric energy by storing the electric energy generated by the power generation module through the energy storage module. Under the control of the control module, when the electric energy stored in the energy storage module is large enough, the door lock module can be controlled to be powered on for unlocking operation; or, as the electric energy is consumed during the unlocking process, when the electric energy stored in the energy storage module is too small, the door lock module can be controlled to stop working after power is cut off. The control module can also detect the energy storage module, solving the problem of mismatch between the small-power generator and the smart lock with high-power demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1A A schematic diagram of a smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0032] Figure 1B A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0033] Figure 1C A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0034] Figure 2 A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0035] Figure 3 A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0036] Figure 4 A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0037] Figure 5 A schematic diagram of another smart lock emergency power supply circuit structure provided in one embodiment of the present application;

[0038] Figure 6 A schematic diagram of the structure of a smart lock provided in one embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] Figure 1A A smart lock emergency power supply circuit 1 is shown, comprising: a power generation module 11, an energy storage module 12, a control module 15, a switch module 13 and a door lock module 14.

[0044] The output end of the power generation module 11 is connected to the input end of the energy storage module 12 .

[0045] In this embodiment, the power generation module 11 may include a generator and a handle. When the user manually shakes the handle, the handle drives the generator to rotate, and the rotor of the generator can cut the winding of the stator to generate electricity through electromagnetic induction. Part of the electric energy generated by the power generation module 11 is stored in the energy storage module 12, and the other part is used to supply power to the switch module 13, the door lock module 14 and the control module 15.

[0046] The output end of the energy storage module 12 is connected to the input end of the switch module 13 .

[0047] In this embodiment, the energy storage module 12 can be implemented by a parallel capacitor or a battery. The entire unlocking process includes a power generation stage, an energy storage stage, and because unlocking requires consumption of electrical energy, there is also a discharge stage and an end stage. In the power generation stage, the voltage at the output end of the energy storage module 12 gradually increases. When it increases to the first threshold, it can trigger the switch in the switch module 13 to close and turn on, so that the current can flow into the door lock module 14 to supply power to the door lock module 14. The unlocking process consumes electrical energy, and the energy storage module 12 is in the discharge stage. As the voltage at the output end gradually decreases, when it decreases to the second threshold, the switch in the switch module 13 will be disconnected and the power supply will end. Among them, the above-mentioned second predetermined value is less than the above-mentioned first predetermined value.

[0048] After the switch module 13 is closed and turned on, the door lock module 14 is powered on and starts to work.

[0049] In this embodiment, when the switch in the switch module 13 is closed, the voltage at the output end of the energy storage module 12 is applied to the door lock module 14 to power the door lock module 14. When the switch in the switch module 13 is open, the door lock module 14 is powered off.

[0050] The control module 15 is disposed between the energy storage module 12 and the switch module 13 , and is used to control the opening or closing of the switch module 13 .

[0051] In this embodiment, the control module 15 can send high and low levels to the switch in the control switch module 13 to control the on or off of the switch. The control module 15 can determine the timing of sending high and low levels according to the voltage at the output end of the energy storage module 12.

[0052] See also Figure 1B In some embodiments, the control module 15 is disposed between the switch module 13 and the door lock module 14 , and is configured to send a first enabling electrical signal to the door lock module 14 to control the operation of the door lock module 14 .

[0053] In this embodiment, the control module 15 can directly send high and low levels to the main control submodule in the door lock module 14 to trigger the main control submodule to work. When working, the main control submodule can enable the unlocking submodule in the door lock module 14 and remind the user that the unlocking operation can be performed.

[0054] See also Figure 1C In some embodiments, the control module 15 is disposed between the energy storage module 12 and the door lock module 14 , and is configured to send a second enabling electrical signal to the door lock module 14 to control the operation of the door lock module 14 .

[0055] In this embodiment, when the voltage at the output end of the energy storage module 12 rises to a value greater than the first threshold, the switch module 13 is turned on to supply power to the door lock. When the output voltage of the control module 15 reaches a predetermined value, the control module 15 can send a second enabling electrical signal to the main control submodule in the door lock module 14 to trigger the main control submodule to work, so that the door lock can be unlocked after being powered on, or when the voltage at the output end of the energy storage module 12 drops to a value less than the second threshold, the door lock stops working after being powered off.

[0056] The above-mentioned technical solution of the present application stores the electric energy generated by the power generation module through the energy storage module. Under the control of the control module, when the voltage at the output end of the energy storage module 12 is greater than the first threshold, the power supply path is automatically turned on, and the user can perform the unlocking operation after receiving the instruction; or, when the voltage at the output end of the energy storage module 12 is lower than the second threshold, the door lock module stops working after the power is cut off. Electric energy can be accumulated in the energy storage module. After the electric energy is accumulated for a certain period of time, the door lock is unlocked when the voltage is large enough, realizing hysteresis control. It solves the problem of mismatch between small-power generators and smart locks with high power requirements. It improves the emergency management level of smart locks.

[0057] In some embodiments, the above-mentioned smart lock emergency power supply circuit 1 also includes a voltage divider module 16; the first end of the above-mentioned voltage divider module 16 is grounded, the second end is connected to the output end of the above-mentioned energy storage module 12, and the voltage divider end is connected to the input end of the above-mentioned control module 15.

[0058] In this embodiment, the voltage at the voltage dividing end of the voltage dividing module 16 can reflect the voltage magnitude of the output end of the energy storage module 12. The voltage dividing module 16 includes a first submodule and a second submodule connected in series, and the connection end of the first submodule and the second submodule is the voltage dividing end of the voltage dividing module 16. The first end of the second submodule is grounded, and the second end is connected to the first end of the first submodule, and the second end of the first submodule is connected to the output end of the energy storage module 12.

[0059] The voltage at the voltage dividing end of the voltage dividing module 16 is the voltage value of the second submodule. The input end of the control module 15 is connected to the voltage dividing end of the voltage dividing module 16, which can achieve the effect of detecting the voltage magnitude of the output end of the energy storage module 12. The control module 15 can judge the voltage value of the output end of the energy storage module 12 according to the voltage magnitude of the voltage dividing end of the voltage dividing module 16, so as to further control the switch module 13 according to the set voltage threshold.

[0060] See attached Figure 2 In some embodiments, the switch module 13 may further include a first MOS transistor 131 and a second MOS transistor 132 .

[0061] The gate of the first MOS tube 131 is connected to the drain of the second MOS tube 132; the drain of the first MOS tube 131 is connected to the input end of the door lock module 14; the source of the first MOS tube 131 is connected to the output end of the energy storage module 12; the source of the second MOS tube 132 is grounded, and the gate is connected to the voltage dividing end of the voltage dividing module 16.

[0062] In this embodiment, the first MOS tube 131 is a main switch, and the generated electric energy is stored in the energy storage module 12. Under the control of the control module, when the voltage at the output end of the energy storage module 12 increases to be greater than the first threshold, the first MOS tube 131 is turned on, and the voltage at the output end of the energy storage module 12 can be applied to the door lock module 14. After the door lock module 14 is powered, it can perform an unlocking operation. Alternatively, when the voltage at the output end of the energy storage module 12 decreases to be less than the second threshold, the first MOS tube 131 is disconnected, and the door lock module 14 is powered off and stops working.

[0063] The second MOS transistor 132 is an auxiliary switch, which is used to control the conduction or disconnection of the first MOS transistor 131. The second MOS transistor 132 can send a low level to the gate of the first MOS transistor 131, and the first MOS transistor 131 is turned on; the second MOS transistor 132 sends a high level to the first MOS transistor 131, and the first MOS transistor 131 is disconnected.

[0064] The second MOS tube 132 indirectly obtains the voltage of the output end of the energy storage module 12 through the voltage dividing end of the connected voltage dividing module 16. Therefore, the timing of sending high and low levels to the first MOS tube 131 can be determined according to the set voltage threshold, thereby controlling the first MOS tube 131 to be turned on or off.

[0065] A resistor 133 and a capacitor 134 are connected in parallel between the gate and the drain of the first MOS transistor 131 .

[0066] See attached Figure 2The control module 15 is disposed between the energy storage module 12 and the switch module 13 and is used to control the opening or closing of the switch module 13, which can be implemented by the following embodiments.

[0067] In this embodiment, the control module 15 can be implemented by one or more connected comparators, and the high and low levels output by the comparator are used to control the opening or closing of the switch module 13.

[0068] The control module 15 at least includes: a first comparator 151 and a second comparator 152; the positive input terminal of the first comparator 151 is connected to the voltage dividing terminal of the voltage dividing module 16, and the output terminal is connected to the first end of the first resistor 153, the second end of the first resistor 153 is respectively connected to the positive input terminal of the second comparator 152 and the first end of the second resistor 154, and the second end of the second resistor 154 is connected to the output terminal of the second comparator 152. The power supply voltage of the first comparator 151 is 3.3 volts, and the power supply voltage comes from the electric energy generated by the power generation module.

[0069] The output end of the second comparator 152 is connected to the input end of the switch module 13 and the first end of the resistor 157 respectively, and the second end of the resistor 157 is grounded.

[0070] A predetermined voltage value is also input to the reverse input terminal of the second comparator 152. The fixed voltage value can be realized by a series voltage divider network as shown in the figure. The reverse input terminal of the second comparator 152 is connected to the output terminal of the series voltage divider network. One end of the series voltage divider network is grounded, and the other end is connected to the comparator power supply.

[0071] In the series voltage divider circuit, resistor 155 and resistor 156 are connected in series, the first end of resistor 156 is grounded, and the second end is respectively connected to the reverse input end of the second comparator 152 and the first end of resistor 155, and the second end of resistor 155 is connected to a power supply, and the power supply voltage can be 3.3 volts, and the power supply voltage comes from the electric energy generated by the power generation module.

[0072] By changing the resistance values ​​of the resistor 155 and the resistor 156 , the voltage value of the inverting input terminal of the second comparator 152 can be adjusted to a predetermined voltage value.

[0073] See attached Figure 3 The control module 15 is disposed between the voltage dividing module 16 and the switch module 13 and is used to control the opening or closing of the switch module 13. Another embodiment may also be used to implement the control module 15.

[0074] In this embodiment, the control module 15 can be implemented using a voltage-dividing resistor 22, which is connected in parallel between the voltage-dividing module 16 and the switch module 13. Specifically, the voltage-dividing resistor 22 is connected in parallel between the first submodule of the voltage-dividing module 16 and the switch module 13. When the voltage-dividing resistor 22 is connected, the voltage-dividing resistor 22 is connected in parallel with a resistor of the voltage-dividing module 16, thereby changing the voltage-dividing ratio of the voltage-dividing module 16, thereby affecting the voltage value at the output end of the voltage-dividing module 16.

[0075] Specifically, the control module 15 at least includes: a third MOS transistor 21 and a third resistor 22. The gate of the third MOS transistor 21 is respectively connected to the gate of the first MOS transistor 131 and the drain of the second MOS transistor 132. The drain of the third MOS transistor 21 is connected to the first end of the third resistor 22, and the second end of the third resistor 22 is respectively connected to the voltage dividing end of the voltage dividing module 16 and the gate of the second MOS transistor 132. The source of the third MOS transistor 21 is connected to the output end of the energy storage module 12.

[0076] In this embodiment, the source and gate voltages of the third MOS transistor 21 are consistent with those of the first MOS transistor 131 , that is, the first MOS transistor 131 and the third MOS transistor 21 can be turned on and off at the same time.

[0077] When the voltage at the output end of the energy storage module 12 rises to a value greater than the first threshold, the second MOS tube 132 is turned on, and the first MOS tube 131 and the third MOS tube 21 are also turned on. It is known that the turn-on voltage of the same MOS tube remains unchanged. When the voltage at the output end of the energy storage module 12 drops to less than the second threshold, the first MOS tube 131, the second MOS tube 132, and the third MOS tube 21 should all be turned off. However, since the third MOS tube 21 is turned on, the third resistor 22 is connected in parallel to the voltage divider module 16, so that the voltage divider ratio of the voltage divider module 16 changes, that is, at the same voltage at the output end of the energy storage module 12, the voltage at the output end of the voltage divider module 16 is greater. Due to the presence of the third resistor 22, the first MOS tube 131, the second MOS tube 132, and the third MOS tube 21 continue to be turned on until the gate voltage of the second MOS tube 132 drops to a predetermined value.

[0078] It can be seen that the existence of the third resistor 22 can enable the first MOS transistor 131, the second MOS transistor 132, and the third MOS transistor to be turned on when the voltage at the output end of the energy storage device is high, and to be turned off when the voltage is low.

[0079] When the voltage at the output end of the energy storage module 12 drops to less than the second threshold, the first MOS tube 131, the second MOS tube 132, and the third MOS tube 21 should all be turned off, but after the third MOS tube 21 is turned on, due to the presence of the third resistor 22, the gate voltage of the second MOS tube 132 has increased compared to the case where the third resistor 22 is not used, which increases the magnitude of the gate voltage drop when the second MOS tube 132 wants to be disconnected. If the second MOS tube 132 is not disconnected, the first MOS tube 131 and the third MOS tube will not be disconnected. It can be seen that the presence of the third resistor 22 can make the first MOS tube 131, the second MOS tube 132, and the third MOS tube 21 shut down when the energy storage module 12 outputs a lower voltage.

[0080] When the voltage at the output end of the energy storage module 12 drops to a lower voltage, the first MOS transistor 131 , the second MOS transistor 132 , and the third MOS transistor 21 can be disconnected, thus achieving a hysteresis control effect.

[0081] See attached Figure 4 The control module 15 is disposed between the switch module 13 and the door lock module 14 , and is used to send a first enabling electrical signal to the door lock module 14 to control the operation of the door lock module 14 .

[0082] In this embodiment, the control module 15 can be implemented using an analog-to-digital converter, which is arranged between the output end of the switch module 13 and the door lock module 14. The analog-to-digital converter can convert the collected analog electrical signal into a digital electrical signal, which is the first enabling electrical signal mentioned above, and can control the door lock master control 141 in the door lock module 14 to enable operation.

[0083] See attached Figure 5 In an embodiment, the control module 15 is disposed between the energy storage module 12 and the door lock module 14 and is used to send a second enabling electrical signal to the door lock module 14 to control the operation of the door lock module 14 .

[0084] The control module 15 includes a fourth MOS tube 31 and a fourth resistor 32; the gate of the fourth MOS tube 31 is connected to the voltage dividing end of the voltage dividing module; the drain of the fourth MOS tube 31 is connected to the output end of the energy storage module 12; the source of the fourth MOS tube 31 is respectively connected to the first end of the fourth resistor 32 and the door lock module, so as to send a second enabling electrical signal to the door lock module to control the operation of the door lock module; the second end of the fourth resistor 32 is grounded.

[0085] In this embodiment, the switch module 13 may further include a voltage divider network. The voltage divider network includes a parallel resistor 33 and a parallel resistor 34. The parallel resistor 33 and the parallel resistor 34 are in a series relationship, the first end of the parallel resistor 34 is grounded, the second end is connected to the first end of the parallel resistor 33, and the second end of the parallel resistor 33 is connected to the output end of the energy storage module 12. The voltage of the parallel resistor 34 is the gate voltage of the second MOS tube 132.

[0086] In some embodiments, the aforementioned enabling electrical signal may be an interrupting electrical signal.

[0087] See attached Figure 5 In some embodiments, the door lock module 14 further includes a light emitting diode 142, which emits light to prompt the user to unlock the door.

[0088] In this embodiment, the door lock module 14 includes a door lock main control submodule 141 and a light emitting diode 142. The door lock main control submodule 141 is connected to the light emitting diode 142. When the energy storage module stores electrical energy that meets the preset unlocking value, the light emitting diode 142 is controlled to light up to prompt the user that the unlocking operation can be performed. After the unlocking is completed, the light emitting diode 142 stops emitting light.

[0089] The door lock module 14 further includes a resistor 143 , and the light emitting diode 142 is grounded via the resistor 143 .

[0090] See also Figure 2 In some embodiments, the above-mentioned smart lock emergency power supply circuit 1 may further include a voltage stabilizing module, and the output end of the voltage stabilizing module 17 is connected to the input end of the door lock module 14 for voltage stabilization.

[0091] The voltage stabilizing module 17 can be implemented by a voltage stabilizing diode, or by any other form of voltage stabilizing circuit.

[0092] In this embodiment, the voltage stabilizing module 17 includes a first voltage stabilizing diode 171 . A first end of the first voltage stabilizing diode 171 is grounded, and a second end of the first voltage stabilizing diode 171 is connected to an input end of the door lock module 14 .

[0093] A transient voltage suppressor (TVS) diode may also be included, and the TVS diode is connected in parallel with the first voltage regulator diode 171. The TVS diode is provided with a loop of two voltage regulator diodes connected in parallel and a diode in series, wherein in the first path, the second voltage regulator diode 172 and the first diode 173 are connected in series. In the second path, the third voltage regulator diode 175 and the second diode 174 are connected in series.

[0094] See attached Figure 4In some embodiments, the above-mentioned smart lock emergency power supply circuit 1 may further include a rectifier module 18, which is located between the above-mentioned power generation module 11 and the above-mentioned energy storage module 12, and is used to rectify the alternating current generated by the above-mentioned power generation module 11 to obtain direct current, and the above-mentioned energy storage module 12 stores direct current power.

[0095] In this embodiment, the rectifier module 18 can be implemented by a rectifier bridge.

[0096] See attached Figure 6 In the second aspect, the present application also proposes a smart lock, comprising the smart lock emergency power supply circuit 1 and a handle 2 as described in any of the above items. The handle 2 is connected to the motor in the power generation module 11. When the handle is shaken, the handle 2 drives the motor in the power generation module 11 to rotate and generate electricity.

[0097] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0098] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0099] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0100] In the embodiments provided in the present application, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0102] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A smart lock emergency power supply circuit, characterized in that: include: Power generation module, energy storage module, control module, switch module and door lock module; The output end of the power generation module is connected to the input end of the energy storage module; The output end of the energy storage module is connected to the input end of the switch module; The output end of the switch module is connected to the input end of the door lock module; After the switch module is closed and turned on, the door lock module is powered on and starts working; The control module is arranged between the energy storage module and the door lock module, and is used to control the energy storage module to supply hysteresis power to the door lock module.

2. The smart lock emergency power supply circuit according to claim 1, characterized in that: It also includes a voltage divider module; the first end of the voltage divider module is grounded, the second end is connected to the output end of the energy storage module, and the voltage divider end is connected to the input end of the control module.

3. The smart lock emergency power supply circuit according to claim 2, characterized in that: The switch module includes a first MOS tube and a second MOS tube; the gate of the first MOS tube is connected to the drain of the second MOS tube; the drain of the first MOS tube is connected to the input end of the door lock module; the source of the first MOS tube is connected to the output end of the energy storage module; The source of the second MOS tube is grounded, and the gate is connected to the voltage dividing end of the voltage dividing module.

4. The smart lock emergency power supply circuit as claimed in claim 3, characterized in that: The control module includes: a first comparator and a second comparator; the positive input end of the first comparator is connected to the voltage dividing end of the voltage dividing module, the output end is connected to the first end of the first resistor, the second end of the first resistor is respectively connected to the positive input end of the second comparator and the first end of the second resistor, and the second end of the second resistor is connected to the output end of the second comparator; The output end of the second comparator is connected to the input end of the switch module.

5. The smart lock emergency power supply circuit as claimed in claim 3, characterized in that: The control module at least includes: a third MOS tube and a third resistor; The gate of the third MOS tube is connected to the gate of the first MOS tube and the drain of the second MOS tube respectively; The drain of the third MOS tube is connected to the first end of the third resistor, and the second end of the third resistor is connected to the voltage dividing end of the voltage dividing module and the gate of the second MOS tube respectively; The source of the third MOS tube is connected to the output end of the energy storage module.

6. The smart lock emergency power supply circuit according to claim 1, characterized in that: The control module is arranged between the switch module and the door lock module, and is used to send a first enabling electrical signal to the door lock module to control the operation of the door lock module; The control module comprises an analog-to-digital conversion circuit, and an input end of the analog-to-digital conversion circuit is connected to an output end of the switch module; The output end of the analog-to-digital conversion circuit outputs high and low level digital signals to the door lock module, so that the door lock module performs unlocking work or stops unlocking work according to the received high and low level digital signals.

7. The smart lock emergency power supply circuit according to claim 2, characterized in that: The control module is arranged between the energy storage module and the door lock module, and is used to send a second enabling electrical signal to the door lock module to control the operation of the door lock module; The control module includes a fourth MOS tube and a fourth resistor; The gate of the fourth MOS tube is connected to the voltage dividing end of the voltage dividing module; The drain of the fourth MOS tube is connected to the output end of the energy storage module; The source of the fourth MOS tube is respectively connected to the first end of the fourth resistor and the door lock module, and is used to send a second enabling electrical signal to the door lock module to control the operation of the door lock module; A second end of the fourth resistor is grounded.

8. The smart lock emergency power supply circuit according to claim 1, characterized in that: The door lock module also includes a light emitting diode, which emits light to prompt the user to unlock the door.

9. The smart lock emergency power supply circuit according to claim 1, characterized in that: It also includes a rectifier module, which is located between the power generation module and the energy storage module and is used to rectify the alternating current generated by the power generation module to obtain direct current. The energy storage module stores direct current energy.

10. A smart lock, characterized in that: Comprising the smart lock emergency power supply circuit and handle as described in any one of claims 1 to 9; The handle is connected to the motor in the power generation module; When the handle is shaken, the handle drives the motor in the power generation module to rotate and generate electricity.

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