A power supply device, method and induction faucet based on hydroelectric power

Abstract

The application provides a power supply device, method and induction faucet based on hydroelectric power generation, which comprises a hydroelectric power generation module, a first super capacitor, a second super capacitor, a lithium battery, a control module and a sampling module; the hydroelectric power generation module is connected with the first super capacitor; the first super capacitor and the lithium battery are respectively connected with the second super capacitor; the hydroelectric power generation module, the first super capacitor and the second super capacitor are respectively connected with a load module; the control module is connected with the sampling module, receives the voltage of the first super capacitor, the second super capacitor and the lithium battery detected by the sampling module, and controls the power supply of the load module according to the detected voltage. The hydroelectric power generation has high power utilization rate, can provide stable power for the load module, and can slow down the charging and discharging times of the lithium battery, thereby increasing the service life of the lithium battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydroelectric power generation, in particular to a power supply device, method and induction faucet based on hydroelectric power generation. BACKGROUND

[0002] The hydroelectric generator arranged in the water conduit can generate electric energy when the water flows in the water conduit. If the electric energy generated by the hydroelectric generator is utilized, the power supply demand of the application (such as an induction faucet, an intelligent toilet, etc.) can be met. For the application powered by an external power supply, the risk of being unable to use due to power failure, etc. can be reduced; for the application powered by a battery, the trouble of needing to be frequently charged can be reduced. The existing induction faucet powered by the hydroelectric generator charges the battery with the electric energy output by the hydroelectric generator to realize power supply. For example, application No. “202210326296.0” and patent name “A smart automatic infrared induction faucet without external power supply”, the water flow in the water storage tank body generates electricity through the generator and stores the electricity in the rechargeable battery and supplies power to the electromagnetic valve. In places where the faucet is frequently used, this power supply mode will frequently charge and discharge the battery, which will reduce the service life of the lithium battery. SUMMARY

[0003] In order to solve the above technical problems, the present application provides a power supply device, method and induction faucet based on hydroelectric power generation. When the hydroelectric generator works, the electric energy generated thereby is directly supplied to the first super capacitor and the load module, and the first (large) super capacitor is used to charge the second (small) super capacitor. After the second super capacitor is rapidly charged, the second super capacitor is used to provide stable electric energy for the load module. The lithium battery of the present application only provides temporary power supply in the case that the hydroelectric generator does not work and the super capacitor is out of power. The number of charging and discharging of the lithium battery is reduced, and the service life is increased.

[0004] The present application adopts the following technical solutions:

[0005] In a first aspect, a power supply device based on hydroelectric power generation includes a hydroelectric power generation module, a first super capacitor, a second super capacitor, a lithium battery, a control module and a sampling module. The hydroelectric power generation module is connected to the first super capacitor. The first super capacitor and the lithium battery are respectively connected to the second super capacitor. The hydroelectric power generation module, the first super capacitor and the second super capacitor are respectively connected to the load module. The control module is connected to the sampling module, receives the voltages of the first super capacitor, the second super capacitor and the lithium battery detected by the sampling module, and controls the power supply of the load module according to the detected voltages. The capacitance of the first super capacitor is greater than that of the second super capacitor.

[0006] Preferably, the power supply device based on hydroelectric power generation further comprises a charging module; the charging module is arranged between the load module and the lithium battery, or the charging module is arranged between the hydroelectric power generation module and the lithium battery; the charging module comprises a charging switch and a charging circuit, and the control module is connected with the charging switch for control.

[0007] Preferably, the power supply device based on hydroelectric power generation further comprises a boost module; the first super capacitor and the lithium battery are respectively connected with the input end of the boost module, and the output end of the boost module is connected with the second super capacitor.

[0008] Preferably, the boost module comprises a boost switch and a boost circuit connected in sequence; and the control module is connected with the boost switch for control.

[0009] Preferably, the lithium battery and the load module are respectively connected with the control module for power supply.

[0010] Preferably, the power supply device based on hydroelectric power generation further comprises an LDO module; the lithium battery and the load module are respectively connected with the input end of the LDO module, and the output end of the LDO module is connected with the control module.

[0011] Preferably, the hydroelectric power generation module comprises a hydroelectric generator, a rectifier filter circuit and a voltage stabilizing circuit connected in sequence; and the voltage stabilizing circuit is respectively connected with the first super capacitor and the load module.

[0012] Preferably, the power supply device based on hydroelectric power generation further comprises a water flow detection module; the water flow detection module is respectively connected with the hydroelectric power generation module and the control module to send the detected water flow to the control module.

[0013] In the second aspect, a power supply method based on hydroelectric power generation comprises:

[0014] When the hydroelectric generator works, the generated electric energy is processed and then output to the load module for power supply and to the first super capacitor for charging;

[0015] If the voltage of the first super capacitor is between the first preset value and the second preset value, the first super capacitor charges the second super capacitor through the boost circuit; after the second super capacitor is fully charged, the output voltage is output to the load module for power supply; wherein the capacitance of the first super capacitor is greater than that of the second super capacitor;

[0016] If the voltage of the first super capacitor is greater than the second preset value, the output voltage is output to the load module for power supply.

[0017] Preferably, the power supply method based on hydroelectric power generation further comprises: the load module outputs voltage to the control module for power supply.

[0018] Preferably, the power supply method based on hydroelectric power generation further comprises:

[0019] When the hydrodynamic engine is not working, it is determined whether the second super capacitor is fully charged, and if so, the second super capacitor supplies power to the load module;

[0020] If the second super capacitor is not fully charged, it is determined whether the voltage of the first super capacitor is greater than the second preset value, and if so, the first super capacitor outputs voltage to the load module for power supply, and if the voltage of the first super capacitor is between the first preset value and the second preset value, the first super capacitor charges the second super capacitor through a boost circuit, and after the second super capacitor is fully charged, it outputs voltage to the load module for power supply.

[0021] If the voltage of the first super capacitor is less than the first preset value, the lithium battery charges the second super capacitor through a boost circuit, and after the second super capacitor is fully charged, it outputs voltage to the load module for power supply.

[0022] Preferably, the power supply method based on hydroelectric power generation further comprises: if the voltage of the lithium battery is greater than the load voltage, the lithium battery directly supplies power to the control module; otherwise, the load module outputs voltage to the control module for power supply.

[0023] Preferably, the power supply method based on hydroelectric power generation further comprises: if the lithium battery is not enough, charge the lithium battery through an external charging device; or use an external power source to directly charge the second super capacitor.

[0024] In a third aspect, an induction faucet comprises the power supply device, the power supply device is arranged in a water guide pipe, the load module comprises an induction module and an electromagnetic valve; the induction faucet further comprises: a water outlet faucet fixed at the end of the water guide pipe; the induction module is arranged on one side of the water outlet faucet, the electromagnetic valve is arranged in the water guide pipe, and the control module controls the action of the electromagnetic valve based on the received signal of the induction module.

[0025] The present application has the following advantages:

[0026] (1) the water turbine generator of the present application works, the electric energy generated is directly supplied to the first super capacitor and the load module, the first (large) super capacitor can charge the second (small) super capacitor through the voltage boosting module after obtaining a small part of electric energy, and after the second super capacitor is rapidly charged, stable electric energy can be provided through the second super capacitor load module, so that the electric energy utilization rate of the water turbine generator is improved; after the first (large) super capacitor is fully charged, the first (large) super capacitor can be switched to supply power to the load, further reducing the charging process and improving the electric energy utilization rate; in addition, when the first (large) super capacitor is fully charged and the water turbine generator is still working, the control module opens the control switch to charge the lithium battery through the load output or the output of the water turbine generator, so that the electric energy is fully utilized.

[0027] (2) the lithium battery of the present application only provides temporary power supply in the case that the water turbine generator does not work and the super capacitor is out of power, so that the charging and discharging times of the lithium battery can be reduced, the service life of the lithium battery is increased;

[0028] (3) the present application uses the water turbine generator and the lithium battery to supply power to the control module, in the case that the water turbine generator does not work and the super capacitor is out of power, the lithium battery is used to supply power to the load module and the control module, so that the valve (switch) in the load module is opened after receiving the induction (triggering) signal of the load module, thereby controlling the water flow in the water pipe to drive the water turbine generator to work, and the electric energy generated by the water turbine generator is used to supply power to the load module and the control module.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The structural block diagram of the power supply device based on water turbine generation of the present application is shown in the figure.

[0031] Figure 2 The circuit schematic diagram of the power supply device based on water turbine generation of the present application is shown in the figure.

[0032] Figure 3 The flow chart of the power supply method of the present application is shown in the figure.

[0033] Figure 4 The flow chart of the power supply method when the water turbine generator works is shown in the figure.

[0034] Figure 5The flow chart of the power supply method of the second (small) super capacitor when the hydraulic generator of the embodiment one of the present application is not working;

[0035] Figure 6 The flow chart of the power supply method of the first (large) super capacitor when the hydraulic generator of the embodiment one of the present application is not working;

[0036] Figure 7 The flow chart of the power supply method of the lithium battery when the hydraulic generator of the embodiment one of the present application is not working;

[0037] Figure 8 The overall flow chart of the power supply method based on the hydraulic power generation of the embodiment one of the present application;

[0038] Figure 9 The flow chart of the charging of the lithium battery by the hydraulic power generation module of the embodiment one of the present application;

[0039] Figure 10 The structural schematic diagram of the induction faucet of the embodiment two of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative work on the basis of the embodiments of the present application shall fall within the scope of protection of the present application.

[0041] In the description of the present application, it should be noted that the terms “including”, “containing” or any other variants thereof are intended to cover non-exclusive containing, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement “including a…” does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0042] In the description of the present application, it should be noted that the terms “up”, “down”, “in”, “out”, “top / bottom end” and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second” and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be internal communication of two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0044] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the step identifiers S101, S102, S103 and the like are only used for convenient description, and do not represent the execution sequence, and the corresponding execution sequence can be adjusted.

[0045] Embodiment one

[0046] Referring to Figure 1 The embodiment is a power supply device based on hydroelectric power generation, which comprises a hydroelectric power generation module 101, a first super capacitor 102, a second super capacitor 103, a lithium battery 104, a control module 105 and a sampling module 106; the hydroelectric power generation module 101 is connected to the first super capacitor 102 for charging; the first super capacitor 102 and the lithium battery 104 are respectively connected to the second super capacitor 103 for charging; the hydroelectric power generation module 101, the first super capacitor 102 and the second super capacitor 103 are respectively connected to a load module 107 for power supply; the control module 105 is connected to the sampling module 106, receives the voltages of the first super capacitor 102, the second super capacitor 103 and the lithium battery 104 detected by the sampling module 106, and controls the power supply of the load module 107 according to the detected voltages; wherein the capacitance of the first super capacitor 102 is greater than that of the second super capacitor 103.

[0047] In the embodiment, the first super capacitor 102 is a large-capacitance super capacitor, and the second super capacitor 103 is a small-capacitance super capacitor. The large-capacitance and small-capacitance do not have specific capacitances, and are selected according to actual needs. In the embodiment, the first super capacitor 102 uses a super capacitor with a capacitance of 2F or more, and the second super capacitor 103 uses a super capacitor with a capacitance of 1F or less. Specifically, the hydroelectric power generation module 101 includes a hydroelectric generator 1010, a rectification filter circuit 1011, and a voltage stabilizing circuit 1012 connected in sequence; and the voltage stabilizing circuit 1012 is connected with the first super capacitor 102 and a load module 107 respectively. When the hydroelectric generator 1010 works, the generated electric energy is sent to the load module 107 and the first super capacitor 102 after being processed by the rectification filter circuit 1011 and the voltage stabilizing circuit 1012. When the first super capacitor 102 has a small amount of energy, the second super capacitor 103 is charged by a boost module 109, and the second super capacitor 103 is quickly charged to provide electric energy for the load module 107. The rectification filter circuit 1011 and the voltage stabilizing circuit 1012 can use any one of existing rectification filter circuits 1011 and voltage stabilizing circuits 1012, and the embodiment will not be described in detail.

[0048] Further, when the hydroelectric generator 1010 has not worked for a long time, if the control module 105 detects that the first super capacitor 102 and the second super capacitor 103 have no energy, the control module 105 preferentially supplies power from the lithium battery 104 to ensure normal use of the load.

[0049] After the hydroelectric generator 1010 works for a certain period of time and then stops, if the control module 105 detects that the first super capacitor 102 or the second super capacitor 103 has energy, the control module 105 preferentially supplies power from the super capacitor, and the lithium battery 104 does not supply power.

[0050] When the hydroelectric generator 1010 is working, the load is supplied with power, and the first super capacitor 102 is charged at the same time. The first super capacitor 102 charges the second super capacitor 103, and the second super capacitor 103 is fully charged to supply power to the load module 107. In addition, after the control module 105 detects that the first super capacitor 102 is fully charged, the control module 105 can switch to supply power to the load module 107 from the first super capacitor 102, so as to reduce the charging and discharging times of the lithium battery 104 and increase the service life of the lithium battery 104.

[0051] It should be noted that when the hydroelectric generator 1010 works, whether the load module 107 is supplied with power from the hydroelectric power generation module 101 or the super capacitor after the first super capacitor 102 or the second super capacitor 103 is fully charged, or whether the load module 107 is supplied with power at the same time, can be adjusted according to actual needs, and the embodiment does not make any limitation. In the embodiment, the load module 107 is supplied with power from the one with higher voltage among the hydroelectric power generation module 101, the first super capacitor 102, and the second super capacitor 103.

[0052] In addition, it should be noted that when the first super capacitor 102 (not full) and the lithium battery 104 supply power to the load module 107, they both need to charge the second super capacitor 103 through the boost module 109 first, and then use it for the load module 107. This is because when the load valve or instantaneously has a large current use, it will pull down the load voltage, and the small capacitor is charged first, and the small capacitor has enough power to use the load, so as to avoid the load voltage being pulled down.

[0053] In addition, when the product (such as a faucet) with the hydraulic generator 1010 has not been used for a long time, and the hydraulic generator 1010 has not worked for a long time, the super capacitor and the lithium battery 104 will always be in power loss, and when the power is completely gone, the product cannot be used when the load module 107 and the control module 105 cannot be powered. A backup external power source 112 (including a direct current source, a battery box, etc.) or a charging module 108 (including a Type-C, a DC head, etc.) can be used to charge the lithium battery 104 and the super capacitor, so that the product can start working.

[0054] Referring to Figure 1 As shown, the power supply device based on hydraulic power generation further comprises a charging module 108; the charging module 108 is arranged between the load module 107 and the lithium battery 104, or the charging module 108 is arranged between the hydraulic power generation module 101 and the lithium battery 104; the charging module 108 comprises a charging switch and a charging circuit, and the control module 105 is connected with the charging switch for control.

[0055] Specifically, when the first super capacitor 102 is fully charged, the control module 105 will open the charging switch, and the load voltage or the power of the electric or hydraulic power generation module 101 will be charged to the lithium battery 104 by the charging circuit through the charging switch. The charging circuit can use any of the existing charging circuits, and the embodiment will not be described in detail.

[0056] In the embodiment, the power supply device based on hydraulic power generation further comprises a boost module 109; the first super capacitor 102 and the lithium battery 104 are respectively connected with the input end of the boost module 109, and the output end of the boost module 109 is connected with the second super capacitor 103.

[0057] Specifically, the voltage boosting module 109 comprises a voltage boosting switch and a voltage boosting circuit connected in series; the control module 105 is connected to the voltage boosting switch for control. When the hydraulic generator 1010 is working, the first super capacitor 102 can charge the second super capacitor 103 through the voltage boosting circuit after obtaining a small amount of electric energy, and the second super capacitor 103 can provide stable electric energy through the load module 107 after being quickly charged. When the hydraulic generator 1010 is not working or the super capacitor is insufficient, the lithium battery 104 can charge the second super capacitor 103 through the voltage boosting circuit, and the second super capacitor 103 can provide stable electric energy through the load module 107 after being quickly charged. The voltage boosting circuit can use any one of the existing charging circuits, and the embodiment will not be described in detail.

[0058] In the embodiment, the lithium battery 104 and the load module 107 are connected to the control module 105 for power supply. The control module 105 is powered by the hydraulic power generation and the lithium battery 104. In the case that the hydraulic generator 1010 is not working and the super capacitor is out of power, the lithium battery 104 is used to supply power to the load module 107 and the control module 105, so as to control the valve (switch) in the load module 107 to open after receiving the induction (trigger) signal of the load module 107, thereby controlling the water flow in the water conduit to drive the hydraulic generator 1010 to work, and the subsequent electric energy generated by the hydraulic power generation is used to supply power to the load module 107 and the control module 105.

[0059] In the embodiment, the power supply device based on hydraulic power generation further comprises an LDO module 110; the lithium battery 104 and the load module 107 are connected to the input end of the LDO module 110, and the output end of the LDO module 110 is connected to the control module 105.

[0060] Since the voltage required by the load module 107 for power supply is different from the voltage required by the control module 105 for power supply, the LDO module 110 can be added between the load output / lithium battery 104 output and the control module 105. In the embodiment, the LDO module 110 can be a voltage reducing module. The LDO module 110 can use any one of the existing charging circuits, and the embodiment will not be described in detail.

[0061] In the embodiment, the power supply device based on hydraulic power generation further comprises a water flow detection module 111; the water flow detection module 111 is connected to the hydraulic power generation module 101 and the control module 105 respectively, so as to send the detected water flow to the control module 105.

[0062] When the water turbine 1010 is working, the water flow is detected by the water flow detection module 111. The real-time water flow can be obtained by the water flow detection module 111, and the control module 105 can also determine the power generation of the water turbine 1010 according to the water flow. It can also be determined according to the power generation of the water turbine 1010 whether to supply power to the load module 107 directly through the output of the water turbine module 101 or through the second super capacitor 103.

[0063] Figure 2 The circuit schematic diagram of the power supply device based on water turbine power generation. Figure 2 In the figure, VIN represents the voltage after the water turbine power generation is rectified, filtered and stabilized; V_1F_IN represents the voltage after the large capacitor or lithium battery 104 is subjected to the voltage boosting switch and the voltage boosting module 109; VCC represents the load voltage; V_2F represents the first super capacitor 102 voltage detection point; and V_1F represents the second super capacitor 103 voltage detection point.

[0064] Since the first super capacitor 102 has a large capacity and is charged slowly, the voltage is raised slowly, and the voltage cannot meet the use of the load. Therefore, it is necessary to charge the second super capacitor 103 first. The second super capacitor 103 has a small capacity and is charged quickly, and the voltage is raised quickly, so it can quickly supply power to the load compared with the first super capacitor 102. If the second super capacitor 103 is also taken from the direct VIN, at this time, the VIN needs to supply power to the three positions of the first super capacitor 102, the load and the second super capacitor 103. The current taken by the second capacitor is small, so the second capacitor cannot be quickly charged. The voltage boosting source in V_1F_IN is the first super capacitor 102, at this time, the first super capacitor 102 is charged to the second super capacitor 103, and the second super capacitor 103 has a small capacity and is quickly charged.

[0065] In addition, Figure 2 EC2 in the figure is a filter capacitor. When the first super capacitor 102 is fully charged, the current is large when the VCC charges the lithium battery 104, and the EC2 can prevent the VCC voltage from being lowered.

[0066] Referring to Figure 3 and 4 It is shown that the embodiment also discloses a power supply method based on water turbine power generation, which comprises the following steps:

[0067] S301, when the water turbine is working, the generated electric energy is processed and output to the load module for power supply, and output to the first super capacitor for charging;

[0068] S302, if the voltage of the first super capacitor is between the first preset value and the second preset value, the first super capacitor charges the second super capacitor through the boost circuit; after the second super capacitor is fully charged, the output voltage is output to the load module for power supply; wherein the capacitance of the first super capacitor is greater than that of the second super capacitor;

[0069] S303, if the voltage of the first super capacitor is greater than the second preset value, the output voltage is output to the load module for power supply.

[0070] Specifically, when the water in the water guide pipe flows, the water turbine generator arranged in the water guide pipe works, and the generated electric energy is rectified through the two-phase rectifier circuit and then supplied to the load VCC (infrared induction module / microwave induction module, electromagnetic valve, motor, etc.) for power supply. At the same time, the first super capacitor SP2 can also be charged.

[0071] When the first super capacitor SP2 is charged with a small part of energy and is not fully charged, the first super capacitor SP2 can charge the second super capacitor SP3 through the boost switch and the boost module at this time. The second super capacitor SP3 has a small capacity and is quickly fully charged, and preferentially provides stable energy to the load.

[0072] When the second super capacitor is quickly fully charged and the water turbine generator is still working, the control module opens the lithium battery charging switch and charges the lithium battery through the charging module.

[0073] In addition, the control module also detects the water flow when the water turbine generator works. During the water outlet process, if the sensing module of the load cannot detect the human body, the water flow is automatically reduced to save water.

[0074] The power supply method based on water turbine generation further comprises that the load module outputs the voltage to the control module for power supply.

[0075] Referring to Figures 5 to 7 The power supply method based on water turbine generation further comprises that the control module detects the water flow when the water turbine generator works.

[0076] When the water turbine generator does not work, it is judged whether the second super capacitor is fully charged. If the second super capacitor is fully charged, the load module is supplied with power through the second super capacitor;

[0077] If the second super capacitor is not fully charged, it is judged whether the voltage of the first super capacitor is greater than the second preset value. If the voltage of the first super capacitor is greater than the second preset value, the output voltage is output to the load module for power supply. If the voltage of the first super capacitor is between the first preset value and the second preset value, the first super capacitor charges the second super capacitor through the boost circuit. After the second super capacitor is fully charged, the output voltage is output to the load module for power supply;

[0078] If the voltage of the first super capacitor is less than the first preset value, the lithium battery charges the second super capacitor through the boost circuit, and after the second super capacitor is fully charged, the output voltage is output to the load module for power supply.

[0079] In this embodiment, when the hydroelectric generator stops after working for a period of time, the super capacitor has electricity. At this time, the lithium battery does not supply power, and only the super capacitor supplies power.

[0080] The second super capacitor is preferentially powered, and the second super capacitor supplies power to the load module and the control module. When the second super capacitor has no electricity, the voltage of the first super capacitor is greater than or equal to 5V, and the load module and the control module can be directly supplied with power without passing through the boost module. When the voltage of the first super capacitor is less than 5V, the load voltage requirement is not met, and the second super capacitor needs to be charged through the boost switch and the boost module, the capacity of the second super capacitor is small, and the second super capacitor can be quickly fully charged and maintained at a certain voltage to supply power to the load.

[0081] When the hydroelectric power module does not work for a long time, the super capacitor has no electricity, and the lithium battery supplies power to the control module. The lithium battery preferentially supplies power to the control module, and simultaneously charges the second super capacitor through the boost module to supply power to the load module and the control module; the lithium battery is less than the load voltage, and the lithium battery no longer directly supplies power to the control module.

[0082] When the lithium battery is depleted, an external charging device 113 (such as a charger) is used to supply power to the lithium battery, and an external backup power supply can also be directly used.

[0083] In summary, the overall flowchart of the power supply method based on hydroelectric power generation in this embodiment is shown in Figure 8 The flowchart of the lithium battery charging process of the hydroelectric power module is shown in Figure 9 .

[0084] Embodiment Two

[0085] Referring to Figure 10 The inductive faucet includes a power supply device based on hydroelectric power generation, the power supply device is arranged in the water guide pipe 115, the load module includes an induction module 1072 and an electromagnetic valve 1071; the inductive faucet further includes: a water outlet faucet 114 fixed at one end of the water guide pipe 115; the induction module 1072 is arranged on one side of the water outlet faucet 114, and the electromagnetic valve 1071 is arranged in the water guide pipe; the control module 105 controls the action of the electromagnetic valve 1071 based on the received signal of the induction module 1072.

[0086] The power supply device based on hydroelectric power generation includes: a hydroelectric power module 101, a first super capacitor 102, a second super capacitor 103, a lithium battery 104, a control module 105, and a sampling module 106. Figure 10The water power generation module 101 is connected with the first super capacitor 102 for charging; the first super capacitor 102 and the lithium battery 104 are respectively connected with the second super capacitor 103 for charging; the water power generation module 101, the first super capacitor 102 and the second super capacitor 103 are respectively connected with the load module for power supply; the control module 105 is connected with the sampling module, receives the voltage of the first super capacitor 102, the second super capacitor 103 and the lithium battery 104 detected by the sampling module, and controls the power supply of the load module according to the detected voltage; wherein the capacitance of the first super capacitor 102 is greater than that of the second super capacitor 103.

[0087] Specifically, the sensing module 1072 includes an infrared sensing module or a microwave sensing module, etc., and the embodiment is not limited.

[0088] When the sensing module 1072 of the embodiment detects a human body signal, etc., the detected signal is sent to the control module 105, the control module 105 controls the electromagnetic valve 1071 to perform corresponding valve opening action, when the electromagnetic valve 1071 is opened, the water flow passes through the water flow in the water guide pipe 115, flows into the water faucet 114, and in the process of water flow, the water power generator can automatically generate electric energy, thereby realizing the power supply of the load module and the control module 105.

[0089] In the embodiment, the working process and principle of the power supply device based on water power generation are referred to the embodiment one, which will not be repeated here.

[0090] The above is only the preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical solution and the improvement concept of the present application within the technical range disclosed by the present application, makes equivalent replacement or change, which should be covered in the protection scope of the present application.

Claims

1. A power supply device based on hydroelectric power generation, characterized by comprising: The power supply device comprises: a hydraulic power generation module, a first super capacitor, a second super capacitor, a lithium battery, a control module and a sampling module; the hydraulic power generation module is connected with the first super capacitor; the first super capacitor and the lithium battery are respectively connected with the second super capacitor; the hydraulic power generation module, the first super capacitor and the second super capacitor are respectively connected with a load module; the control module is connected with the sampling module, receives the voltage of the first super capacitor, the second super capacitor and the lithium battery detected by the sampling module, and controls the power supply of the load module according to the detected voltage; wherein the capacitance of the first super capacitor is greater than that of the second super capacitor; The power supply device is configured to perform the following power supply method, comprising: When the hydraulic power generator is working, the generated electric energy is processed and then output to the load module for power supply and to the first super capacitor for charging; If the voltage of the first super capacitor is greater than a first preset value and less than a second preset value, the first super capacitor charges the second super capacitor through a boost circuit; after the second super capacitor is fully charged, the output voltage is output to the load module for power supply; If the voltage of the first super capacitor is greater than the second preset value, the output voltage is output to the load module for power supply; or, if the voltage of the first super capacitor is equal to the second preset value, the output voltage is output to the load module for power supply.

2. The hydroelectrically-based power supply of claim 1, wherein, Further comprising a charging module; the charging module is arranged between the load module and the lithium battery, or the charging module is arranged between the hydraulic power generation module and the lithium battery; the charging module comprises a charging switch and a charging circuit, and the control module is connected with the charging switch for control.

3. The hydroelectrically-based power supply of claim 1, wherein, Further comprising a boost module; the first super capacitor and the lithium battery are respectively connected with the input end of the boost module, and the output end of the boost module is connected with the second super capacitor.

4. The hydroelectrically-based power supply of claim 3, wherein, The boost module comprises a boost switch and a boost circuit connected with each other; the control module is connected with the boost switch for control.

5. The hydroelectrically-based power supply of claim 1, wherein, The lithium battery and the load module are respectively connected with the control module for power supply.

6. The hydroelectrically-based power supply of claim 5, wherein, Further comprising an LDO module; the lithium battery and the load module are respectively connected with the input end of the LDO module, and the output end of the LDO module is connected with the control module.

7. The hydroelectrically-based power supply of claim 1, wherein, The hydraulic power generation module comprises a hydraulic power generator, a rectifier filter circuit and a voltage stabilizing circuit connected in sequence; the voltage stabilizing circuit is respectively connected with the first super capacitor and the load module.

8. The hydroelectrically-based power supply of claim 1, wherein, Further comprising: a water flow detection module; the water flow detection module is respectively connected with the hydraulic power generation module and the control module to send the detected water flow to the control module.

9. The hydroelectrically-based power supply of claim 1, wherein, The power supply method further comprises that the load module outputs the voltage to the control module for power supply.

10. The hydroelectrically-based power supply of claim 1, wherein, The power supply method further comprises: When the hydraulic power generator is not working, it is judged whether the second super capacitor is fully charged, and if so, the load module is powered by the second super capacitor; If the second super capacitor is not fully charged, it is determined whether the voltage of the first super capacitor is greater than a second preset value. If it is greater, the first super capacitor outputs voltage to the load module for power supply. If the voltage of the first super capacitor is greater than a first preset value and less than the second preset value, the first super capacitor charges the second super capacitor through a boost circuit. After the second super capacitor is fully charged, it outputs voltage to the load module for power supply. If the voltage of the first super capacitor is less than the first preset value, the lithium battery charges the second super capacitor through a boost circuit. After the second super capacitor is fully charged, it outputs voltage to the load module for power supply.

11. The hydroelectrically-based power supply of claim 10, wherein, The power supply method further includes: if the voltage of the lithium battery is greater than the load voltage, the lithium battery directly supplies power to the control module; otherwise, the load module outputs voltage to the control module for power supply.

12. The hydroelectrically-based power supply of claim 11, wherein, The power supply method further includes: if the lithium battery is not enough, charging the lithium battery through an external charging device; or directly charging the second super capacitor using an external power supply.

13. An induction faucet, characterized by The power supply device as claimed in any one of claims 1-12 is arranged in a water guide pipe, the load module includes an induction module and an electromagnetic valve; the induction faucet further includes: a water outlet faucet fixed to an end of the water guide pipe; the induction module is arranged on one side of the water outlet faucet, and the electromagnetic valve is arranged in the water guide pipe; the control module controls the action of the electromagnetic valve based on the received signal of the induction module.

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